Create a branch for beta3

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1147804 13f79535-47bb-0310-9956-ffa450edef68

114 files changed, 15112 insertions, 0 deletions

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/LICENSE b/sca-java-2.x/branches/2.0-Beta3/modules/core/LICENSE
new file mode 100644
index 0000000000..8aa906c321
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/LICENSE
@@ -0,0 +1,205 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      "License" shall mean the terms and conditions for use, reproduction,
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+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
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+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
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+      designated in writing by the copyright owner as "Not a Contribution."
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
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+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+      Work and such Derivative Works in Source or Object form.
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+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
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+      (d) If the Work includes a "NOTICE" text file as part of its
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+          include a readable copy of the attribution notices contained
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+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
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+      other commercial damages or losses), even if such Contributor
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+   Unless required by applicable law or agreed to in writing, software
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+
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/META-INF/MANIFEST.MF b/sca-java-2.x/branches/2.0-Beta3/modules/core/META-INF/MANIFEST.MF
new file mode 100644
index 0000000000..95efebc96a
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/META-INF/MANIFEST.MF
@@ -0,0 +1,71 @@
+Manifest-Version: 1.0

+Export-Package: org.apache.tuscany.sca.core.assembly;version="2.0.0";uses:="org.apache.tuscany.sca.assembly,org.apache.tuscany.sca.core",

+ org.apache.tuscany.sca.core.assembly.impl;version="2.0.0",

+ org.apache.tuscany.sca.core.context;version="2.0.0";

+  uses:="javax.xml.stream,

+   org.apache.tuscany.sca.runtime,

+   org.apache.tuscany.sca.assembly,

+   org.apache.tuscany.sca.context,

+   org.oasisopen.sca,

+   org.apache.tuscany.sca.core",

+ org.apache.tuscany.sca.core.factory;version="2.0.0",

+ org.apache.tuscany.sca.core.invocation;version="2.0.0";

+  uses:="org.apache.tuscany.sca.invocation,

+   org.apache.tuscany.sca.runtime,

+   org.apache.tuscany.sca.assembly,

+   org.oasisopen.sca,

+   org.apache.tuscany.sca.work,

+   org.apache.tuscany.sca.core.factory,

+   org.apache.tuscany.sca.core.context.impl,

+   org.apache.tuscany.sca.core,

+   org.apache.tuscany.sca.interfacedef",

+ org.apache.tuscany.sca.core.scope;version="2.0.0";

+  uses:="org.apache.tuscany.sca.runtime,

+   org.apache.tuscany.sca.provider,

+   org.apache.tuscany.sca.core.scope.impl,

+   org.apache.tuscany.sca.core.factory"

+SCA-Version: 1.1

+Bundle-Name: Apache Tuscany SCA Core Runtime

+Bundle-Vendor: The Apache Software Foundation

+Bundle-Version: 2.0.0

+Bundle-ManifestVersion: 2

+Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt

+Bundle-Description: Apache Tuscany SCA Core Runtime

+Import-Package: javax.security.auth,

+ javax.xml.namespace,

+ javax.xml.stream,

+ javax.xml.transform,

+ net.sf.cglib.proxy;resolution:=optional,

+ org.apache.tuscany.sca.assembly;version="2.0.0",

+ org.apache.tuscany.sca.assembly.builder;version="2.0.0",

+ org.apache.tuscany.sca.assembly.impl;version="2.0.0",

+ org.apache.tuscany.sca.assembly.xml;version="2.0.0",

+ org.apache.tuscany.sca.common.java.collection;version="2.0.0",

+ org.apache.tuscany.sca.context;version="2.0.0",

+ org.apache.tuscany.sca.contribution.processor;version="2.0.0",

+ org.apache.tuscany.sca.contribution.resolver;version="2.0.0",

+ org.apache.tuscany.sca.core;version="2.0.0",

+ org.apache.tuscany.sca.core.assembly;version="2.0.0",

+ org.apache.tuscany.sca.core.context;version="2.0.0",

+ org.apache.tuscany.sca.core.factory;version="2.0.0",

+ org.apache.tuscany.sca.core.invocation;version="2.0.0",

+ org.apache.tuscany.sca.core.scope;version="2.0.0",

+ org.apache.tuscany.sca.definitions;version="2.0.0",

+ org.apache.tuscany.sca.extensibility;version="2.0.0",

+ org.apache.tuscany.sca.interfacedef;version="2.0.0",

+ org.apache.tuscany.sca.interfacedef.impl;version="2.0.0";resolution:=optional,

+ org.apache.tuscany.sca.interfacedef.java;version="2.0.0",

+ org.apache.tuscany.sca.interfacedef.util;version="2.0.0",

+ org.apache.tuscany.sca.interfacedef.wsdl;version="2.0.0",

+ org.apache.tuscany.sca.invocation;version="2.0.0",

+ org.apache.tuscany.sca.monitor;version="2.0.0",

+ org.apache.tuscany.sca.node;version="2.0.0",

+ org.apache.tuscany.sca.policy;version="2.0.0",

+ org.apache.tuscany.sca.provider;version="2.0.0",

+ org.apache.tuscany.sca.runtime;version="2.0.0",

+ org.apache.tuscany.sca.work;version="2.0.0",

+ org.oasisopen.sca;version="2.0.0",

+ org.oasisopen.sca.annotation;version="2.0.0"

+Bundle-SymbolicName: org.apache.tuscany.sca.core

+Bundle-DocURL: http://www.apache.org/

+Bundle-RequiredExecutionEnvironment: J2SE-1.5,JavaSE-1.6
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/NOTICE b/sca-java-2.x/branches/2.0-Beta3/modules/core/NOTICE
new file mode 100644
index 0000000000..d69e595698
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/NOTICE
@@ -0,0 +1,6 @@
+${pom.name}
+Copyright (c) 2005 - 2011 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/pom.xml b/sca-java-2.x/branches/2.0-Beta3/modules/core/pom.xml
new file mode 100644
index 0000000000..ffa66e6d86
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/pom.xml
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    * Licensed to the Apache Software Foundation (ASF) under one
+    * or more contributor license agreements.  See the NOTICE file
+    * distributed with this work for additional information
+    * regarding copyright ownership.  The ASF licenses this file
+    * to you under the Apache License, Version 2.0 (the
+    * "License"); you may not use this file except in compliance
+    * with the License.  You may obtain a copy of the License at
+    * 
+    *   http://www.apache.org/licenses/LICENSE-2.0
+    * 
+    * Unless required by applicable law or agreed to in writing,
+    * software distributed under the License is distributed on an
+    * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    * KIND, either express or implied.  See the License for the
+    * specific language governing permissions and limitations
+    * under the License.    
+-->
+<project>
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.tuscany.sca</groupId>
+        <artifactId>tuscany-modules</artifactId>
+        <version>2.0-Beta3-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>tuscany-core</artifactId>
+    <name>Apache Tuscany SCA Core Runtime</name>
+
+    <dependencies>
+    	<dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-extensibility</artifactId>
+            <version>2.0-Beta3-SNAPSHOT</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-core-spi</artifactId>
+            <version>2.0-Beta3-SNAPSHOT</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-contribution</artifactId>
+            <version>2.0-Beta3-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-interface-java</artifactId>
+            <version>2.0-Beta3-SNAPSHOT</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>cglib</groupId>
+            <artifactId>cglib</artifactId>
+            <version>2.2</version>
+        </dependency>        
+
+    </dependencies>
+
+</project>
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/RuntimeAssemblyFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/RuntimeAssemblyFactory.java
new file mode 100644
index 0000000000..790cc6ec98
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/RuntimeAssemblyFactory.java
@@ -0,0 +1,75 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.core.assembly;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.DefaultAssemblyFactory;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeComponentImpl;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeComponentReferenceImpl;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeComponentServiceImpl;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointImpl;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointReferenceImpl;
+
+
+/**
+ * The runtime version of assembly factory
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class RuntimeAssemblyFactory extends DefaultAssemblyFactory implements AssemblyFactory {
+
+    public RuntimeAssemblyFactory(ExtensionPointRegistry registry) {
+        super(registry);
+    }
+
+    @Override
+    public Component createComponent() {
+        return new RuntimeComponentImpl();
+    }
+
+    @Override
+    public ComponentReference createComponentReference() {
+        return new RuntimeComponentReferenceImpl();
+    }
+
+    @Override
+    public ComponentService createComponentService() {
+        return new RuntimeComponentServiceImpl();
+    }
+
+    @Override
+    public Endpoint createEndpoint() {
+        // Create an instance of EndpointImpl that can be serialized/deserialized using the Tuscany
+        // runtime extension points and extensions
+        return new RuntimeEndpointImpl(registry);
+    }
+
+    @Override
+    public EndpointReference createEndpointReference() {
+        return new RuntimeEndpointReferenceImpl(registry);
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/CompositeActivatorImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/CompositeActivatorImpl.java
new file mode 100644
index 0000000000..49c72aa267
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/CompositeActivatorImpl.java
@@ -0,0 +1,686 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.core.scope.ScopeContainer;
+import org.apache.tuscany.sca.core.scope.ScopeRegistry;
+import org.apache.tuscany.sca.core.scope.ScopedRuntimeComponent;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.MonitorFactory;
+import org.apache.tuscany.sca.provider.EndpointReferenceAsyncProvider;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.provider.ImplementationProviderFactory;
+import org.apache.tuscany.sca.provider.PolicyProvider;
+import org.apache.tuscany.sca.provider.PolicyProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
+import org.apache.tuscany.sca.provider.RuntimeProvider;
+import org.apache.tuscany.sca.provider.ServiceBindingProvider;
+import org.apache.tuscany.sca.runtime.ActivationException;
+import org.apache.tuscany.sca.runtime.CompositeActivator;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class CompositeActivatorImpl implements CompositeActivator {
+    final Logger logger = Logger.getLogger(CompositeActivatorImpl.class.getName());
+
+    private final ScopeRegistry scopeRegistry;
+    private final ProviderFactoryExtensionPoint providerFactories;
+	private Monitor monitor;
+
+    public CompositeActivatorImpl(ExtensionPointRegistry extensionPoints) {
+        UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+        this.scopeRegistry = utilities.getUtility(ScopeRegistry.class);
+        this.providerFactories = extensionPoints.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+        this.monitor = utilities.getUtility(MonitorFactory.class).createMonitor();
+    }
+
+    //=========================================================================
+    // Activation
+    //=========================================================================
+
+    // Composite activation/deactivation
+
+    public void activate(CompositeContext compositeContext, Composite composite) throws ActivationException {
+        try {
+            if (logger.isLoggable(Level.FINE)) {
+                logger.fine("Activating composite: " + composite.getName());
+            }
+            for (Component component : composite.getComponents()) {
+                activateComponent(compositeContext, component);
+            }
+        } catch (Exception e) {
+            throw new ActivationException(e);
+        }
+    }
+
+    public void deactivate(Composite composite) throws ActivationException {
+        try {
+            if (logger.isLoggable(Level.FINE)) {
+                logger.fine("Deactivating composite: " + composite.getName());
+            }
+            for (Component component : composite.getComponents()) {
+                deactivateComponent(component);
+            }
+        } catch (Exception e) {
+            throw new ActivationException(e);
+        }
+    }
+
+    // Component activation/deactivation
+
+    public void activateComponent(CompositeContext compositeContext, Component component)
+            throws ActivationException {
+        try {
+            if (logger.isLoggable(Level.FINE)) {
+                logger.fine("Activating component: " + component.getURI());
+            }
+
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                activate(compositeContext, (Composite) implementation);
+            } else if (implementation != null) {
+                addImplementationProvider((RuntimeComponent) component,
+                        implementation);
+                addScopeContainer(component);
+            }
+
+            for (ComponentService service : component.getServices()) {
+                activate(compositeContext,
+                        (RuntimeComponent) component, (RuntimeComponentService) service);
+            }
+
+            for (ComponentReference reference : component.getReferences()) {
+                activate(compositeContext,
+                        (RuntimeComponent) component, (RuntimeComponentReference) reference);
+            }
+        } catch (Exception e) {
+            throw new ActivationException(e);
+        }
+    }
+
+    public void deactivateComponent(Component component)
+            throws ActivationException {
+        try {
+            if (logger.isLoggable(Level.FINE)) {
+                logger.fine("Deactivating component: " + component.getURI());
+            }
+            for (ComponentService service : component.getServices()) {
+                deactivate((RuntimeComponent) component,
+                        (RuntimeComponentService) service);
+            }
+
+            for (ComponentReference reference : component.getReferences()) {
+                deactivate((RuntimeComponent) component,
+                        (RuntimeComponentReference) reference);
+            }
+
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                deactivate((Composite) implementation);
+            } else if (implementation != null) {
+                removeImplementationProvider((RuntimeComponent) component);
+                removeScopeContainer(component);
+            }
+        } catch (Exception e) {
+            throw new ActivationException(e);
+        }
+    }
+
+    // add/remove artifacts required to get the implementation going
+
+    private void addImplementationProvider(RuntimeComponent component, Implementation implementation) {
+        ImplementationProviderFactory providerFactory =
+            (ImplementationProviderFactory)providerFactories.getProviderFactory(implementation.getClass());
+        if (providerFactory != null) {
+            @SuppressWarnings("unchecked")
+            ImplementationProvider implementationProvider =
+                providerFactory.createImplementationProvider(component, implementation);
+            if (implementationProvider != null) {
+                component.setImplementationProvider(implementationProvider);
+            }
+        } else {
+            throw new IllegalStateException("Provider factory not found for class: " + implementation.getClass()
+                .getName());
+        }
+        for (PolicyProviderFactory f : providerFactories.getPolicyProviderFactories()) {
+            PolicyProvider policyProvider = f.createImplementationPolicyProvider(component);
+            if (policyProvider != null) {
+                component.addPolicyProvider(policyProvider);
+            }
+        }
+
+    }
+
+    private void removeImplementationProvider(RuntimeComponent component) {
+        component.setImplementationProvider(null);
+        component.getPolicyProviders().clear();
+    }
+
+    private void addScopeContainer(Component component) {
+        if (!(component instanceof ScopedRuntimeComponent)) {
+            return;
+        }
+        ScopedRuntimeComponent runtimeComponent = (ScopedRuntimeComponent)component;
+        ScopeContainer scopeContainer = scopeRegistry.getScopeContainer(runtimeComponent);
+        runtimeComponent.setScopeContainer(scopeContainer);
+    }
+
+    private void removeScopeContainer(Component component) {
+        if (!(component instanceof ScopedRuntimeComponent)) {
+            return;
+        }
+        ScopedRuntimeComponent runtimeComponent = (ScopedRuntimeComponent)component;
+        ScopeContainer scopeContainer = runtimeComponent.getScopeContainer();
+        runtimeComponent.setScopeContainer(null);
+    }
+
+
+    // Service activation/deactivation
+
+    public void activate(CompositeContext compositeContext, RuntimeComponent component, RuntimeComponentService service) {
+        if (service.getService() == null) {
+            if (logger.isLoggable(Level.WARNING)) {
+                logger.warning("Skipping component service not defined in the component type: " + component.getURI()
+                    + "#"
+                    + service.getName());
+            }
+            return;
+        }
+
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Activating component service: " + component.getURI() + "#" + service.getName());
+        }
+
+        // Add a wire for each service Endpoint
+        for ( Endpoint endpoint : service.getEndpoints()){
+            RuntimeEndpoint ep = (RuntimeEndpoint) endpoint;
+            activate(compositeContext, ep);
+
+            // create the interface contract for the binding and service ends of the wire
+            // that are created as forward only contracts
+            // FIXME: [rfeng] We might need a better way to get the impl interface contract
+            Service targetService = service.getService();
+            if (targetService == null) {
+                targetService = service;
+            }
+            // endpoint.setInterfaceContract(targetService.getInterfaceContract().makeUnidirectional(false));
+        }
+    }
+
+    public void activate(CompositeContext compositeContext, RuntimeEndpoint ep) {
+        ep.bind(compositeContext);
+        
+        // Check that the service binding interface is compatible with the 
+        // service interface
+        ep.validateServiceInterfaceCompatibility();
+    }
+
+    public void deactivate(RuntimeComponent component, RuntimeComponentService service) {
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Deactivating component service: " + component.getURI() + "#" + service.getName());
+        }
+        for(Endpoint ep: service.getEndpoints()) {
+            if(ep instanceof RuntimeEndpoint) {
+                deactivate((RuntimeEndpoint) ep);
+            }
+        }
+    }
+
+    public void deactivate(RuntimeEndpoint ep) {
+        ep.unbind();
+    }
+
+    // Reference activation/deactivation
+
+    public void activate(CompositeContext compositeContext, RuntimeComponent component, RuntimeComponentReference reference) {
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Activating component reference: " + component.getURI() + "#" + reference.getName());
+        }
+
+        // set the parent component onto the reference. It's used at start time when the
+        // reference is asked to return it's runtime wires. If there are none the reference
+        // asks the component context to start the reference which creates the wires
+        reference.setComponent(component);
+        for(EndpointReference epr: reference.getEndpointReferences()) {
+            activate(compositeContext, (RuntimeEndpointReference) epr);
+        }
+
+    }
+
+    public void deactivate(RuntimeComponent component, RuntimeComponentReference reference) {
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Deactivating component reference: " + component.getURI() + "#" + reference.getName());
+        }
+        for(EndpointReference endpointReference: reference.getEndpointReferences()) {
+            deactivate((RuntimeEndpointReference)endpointReference);
+        }
+    }
+    
+    public void activate(CompositeContext compositeContext, RuntimeEndpointReference epr) {
+        // create the wire
+        // null endpoint passed in here as the endpoint reference may
+        // not be resolved yet
+        epr.bind(compositeContext);
+
+        ComponentReference reference = epr.getReference(); 
+        InterfaceContract sourceContract = epr.getComponentTypeReferenceInterfaceContract();
+
+        // TODO - EPR - interface contract seems to be null in the implementation.web
+        //              case. Not introspecting the CT properly?
+        if (sourceContract == null){
+            // TODO - Can't do this with move of matching to wire
+            // take the contract from the service to which the reference is connected
+            sourceContract = ((RuntimeEndpoint) epr.getTargetEndpoint()).getComponentTypeServiceInterfaceContract();
+            reference.setInterfaceContract(sourceContract);
+        }
+
+        // endpointReference.setInterfaceContract(sourceContract.makeUnidirectional(false));
+        
+        // if the reference already has a binding we can check the reference binding interface
+        // and reference interfaces for compatibility. If we can't check now compatibility 
+        // will be checked when the endpoint reference is resolved. 
+        if (epr.getStatus() == EndpointReference.Status.RESOLVED_BINDING){
+            epr.validateReferenceInterfaceCompatibility();
+        }
+    }    
+
+    public void deactivate(RuntimeEndpointReference endpointReference) {
+        endpointReference.unbind();
+    }
+
+    //=========================================================================
+    // Start
+    //=========================================================================
+
+    // Composite start/stop
+
+    public void start(CompositeContext compositeContext, Composite composite) {
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Starting composite: " + composite.getName());
+        }
+        for (Component component : composite.getComponents()) {
+            start(compositeContext, component);
+        }
+        
+        for (Component component : composite.getComponents()) {
+            if (component instanceof ScopedRuntimeComponent) {
+                start(compositeContext, (ScopedRuntimeComponent)component);
+            }
+        }
+        
+        // start reference last. In allowing references to start at "start" time
+        // as well as when they are first used (for late bound references) we need
+        // to make sure that all potential target services and component implementations 
+        // are started first to take account of the default binding optimization case
+        for (Component component : composite.getComponents()) {
+            for (ComponentReference reference : component.getReferences()) {        
+                start(compositeContext, 
+                      (RuntimeComponent)component, 
+                      (RuntimeComponentReference)reference);
+            }
+        }
+    }
+
+    public void stop(CompositeContext compositeContext, Composite composite) {
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Stopping composite: " + composite.getName());
+        }
+        for (final Component component : composite.getComponents()) {
+            stop(compositeContext, component);
+        }
+    }
+
+    // Component start/stop
+
+    public void start(CompositeContext compositeContext, Component component) {
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Starting component: " + component.getURI());
+        }
+        RuntimeComponent runtimeComponent = ((RuntimeComponent)component);
+        if(runtimeComponent.isStarted()) {
+            return;
+        }
+
+        compositeContext.bindComponent(runtimeComponent);
+        Implementation implementation = component.getImplementation();
+        
+        List<RuntimeProvider> providers = new ArrayList<RuntimeProvider>();
+        try {
+
+            if (implementation instanceof Composite) {
+                try {
+                    start(compositeContext, (Composite)implementation);
+                } catch (Throwable e) {
+                    try {
+                        stop(compositeContext, (Composite) implementation);
+                    } catch (Throwable e1) {
+                        Monitor.error(monitor, this, "core-messages", "StopException", e1);
+                    }
+                    rethrow(e);
+                }
+            } else {
+                for (PolicyProvider policyProvider : runtimeComponent.getPolicyProviders()) {
+                    policyProvider.start();
+                    providers.add(policyProvider);
+                }
+                ImplementationProvider implementationProvider = runtimeComponent.getImplementationProvider();
+                if (implementationProvider != null) {
+                    implementationProvider.start();
+                    providers.add(implementationProvider);
+                }
+            }
+
+            for (ComponentService service : component.getServices()) {
+                if (logger.isLoggable(Level.FINE)) {
+                    logger.fine("Starting component service: " + component.getURI() + "#" + service.getName());
+                }
+                for (Endpoint endpoint : service.getEndpoints()) {
+                    RuntimeEndpoint ep = (RuntimeEndpoint)endpoint;
+                    startEndpoint(compositeContext, ep, providers);
+                }
+            }
+            
+            // Reference start is done after all components have been started to make sure everything
+            // is up and running before we try and connect references to services
+            
+        } catch (Throwable e) {
+            // any providers (binding, implementation, policy) that were started
+            // before the error occured are stopped here
+            for (int i = providers.size() - 1; i >= 0; i--) {
+                try {
+                    providers.get(i).stop();
+                } catch (Throwable e1) {
+                    Monitor.error(monitor, this, "core-messages", "StopException", e1);
+                }
+            }
+            rethrow(e);
+        } finally {
+            providers.clear();
+        }
+
+        // mark a successful start
+        runtimeComponent.setStarted(true);
+    }
+
+    private void rethrow(Throwable e) throws Error {
+        if(e instanceof RuntimeException) {
+            throw (RuntimeException) e;
+        } else if(e instanceof Error) {
+            throw (Error) e;
+        }
+    }
+
+    public void stop(CompositeContext compositeContext, Component component) {
+        if (!((RuntimeComponent)component).isStarted()) {
+            return;
+        }
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Stopping component: " + component.getURI());
+        }
+        for (ComponentService service : component.getServices()) {
+            if (logger.isLoggable(Level.FINE)) {
+                logger.fine("Stopping component service: " + component.getURI() + "#" + service.getName());
+            }
+            for (Endpoint endpoint : service.getEndpoints()) {
+                RuntimeEndpoint ep = (RuntimeEndpoint) endpoint;
+                stop(ep);
+            }
+        }
+        for (ComponentReference reference : component.getReferences()) {
+            if (logger.isLoggable(Level.FINE)) {
+                logger.fine("Stopping component reference: " + component.getURI() + "#" + reference.getName());
+            }
+
+            for (EndpointReference endpointReference : reference.getEndpointReferences()) {
+                RuntimeEndpointReference epr = (RuntimeEndpointReference) endpointReference;
+                stop(epr);
+            }
+        }
+        Implementation implementation = component.getImplementation();
+        if (implementation instanceof Composite) {
+            stop(compositeContext, (Composite)implementation);
+        } else {
+            final ImplementationProvider implementationProvider = ((RuntimeComponent)component).getImplementationProvider();
+            if (implementationProvider != null) {
+                try {
+                    // Allow bindings to read properties. Requires PropertyPermission read in security policy.
+                    AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                        public Object run() {
+                            implementationProvider.stop();
+                            return null;
+                          }
+                    });
+                } catch (Throwable ex){
+                    Monitor.error(monitor, this, "core-messages", "StopException", ex);
+                }                  
+            }
+            for (PolicyProvider policyProvider : ((RuntimeComponent)component).getPolicyProviders()) {
+                try {
+                    policyProvider.stop();
+                } catch (Throwable ex){
+                    Monitor.error(monitor, this, "core-messages", "StopException", ex);
+                }  
+            }
+        }
+
+        if (component instanceof ScopedRuntimeComponent) {
+            ScopedRuntimeComponent runtimeComponent = (ScopedRuntimeComponent)component;
+            if (runtimeComponent.getScopeContainer() != null &&
+                    runtimeComponent.getScopeContainer().getLifecycleState() != ScopeContainer.STOPPED) {
+                try {
+                    runtimeComponent.getScopeContainer().stop();
+                } catch (Throwable ex){
+                    Monitor.error(monitor, this, "core-messages", "StopException", ex);
+                }                      
+            }
+        }
+
+        ((RuntimeComponent)component).setStarted(false);
+    }
+
+
+    // Scope container start/stop
+    // separate off from component start that all endpoints are 
+    // registered before any @EagerInit takes place
+    public void start(CompositeContext compositeContext, ScopedRuntimeComponent scopedRuntimeComponent) {
+        if (scopedRuntimeComponent.getScopeContainer() != null) {
+            try {
+                scopedRuntimeComponent.getScopeContainer().start();
+            } catch (Throwable ex){
+                Monitor.error(monitor, this, "core-messages", "StartException", ex);
+                rethrow(ex);
+            }             
+        }
+    }
+    
+    // Service start/stop
+
+    public void start(CompositeContext compositeContext, RuntimeEndpoint ep) {
+        startEndpoint(compositeContext, ep, null);
+    }
+
+    private void startEndpoint(CompositeContext compositeContext, RuntimeEndpoint ep, final List<RuntimeProvider> providers) {
+        // FIXME: Should the policy providers be started before the endpoint is started?
+        for (PolicyProvider policyProvider : ep.getPolicyProviders()) {
+            policyProvider.start();
+            if (providers != null) {
+                try {
+                    providers.add(policyProvider);
+                } catch (Throwable ex){
+                    Monitor.error(monitor, this, "core-messages", "StartException", ex);
+                    rethrow(ex);
+                }                     
+            }
+        }
+
+        final ServiceBindingProvider bindingProvider = ep.getBindingProvider();
+        if (bindingProvider != null) {
+            try {
+                // bindingProvider.start();
+                // Allow bindings to add shutdown hooks. Requires RuntimePermission shutdownHooks in policy.
+                AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                    public Object run() {
+                        bindingProvider.start();
+                        if (providers != null) {
+                            providers.add(bindingProvider);
+                        }
+                        return null;
+                      }
+                });
+                compositeContext.getEndpointRegistry().addEndpoint(ep);
+            } catch (Throwable ex){
+                Monitor.error(monitor, this, "core-messages", "StartException", ex);
+                rethrow(ex);
+            }  
+        }
+    }
+    
+    public void stop(RuntimeEndpoint ep) {
+        ep.getCompositeContext().getEndpointRegistry().removeEndpoint(ep);
+        final ServiceBindingProvider bindingProvider = ep.getBindingProvider();
+        if (bindingProvider != null) {
+            try {
+                // Allow bindings to read properties. Requires PropertyPermission read in security policy.
+                AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                    public Object run() {
+                        bindingProvider.stop();
+                        return null;
+                      }
+                });
+            } catch (Throwable ex){
+                Monitor.error(monitor, this, "core-messages", "StopException", ex);
+            }  
+        }
+        for (PolicyProvider policyProvider : ep.getPolicyProviders()) {
+            try {
+                policyProvider.stop();
+            } catch (Throwable ex){
+                Monitor.error(monitor, this, "core-messages", "StopException", ex);
+            }                  
+        }
+    }
+
+
+    // Reference start/stop
+
+    public void start(CompositeContext compositeContext, RuntimeComponent component, RuntimeComponentReference reference) {
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Starting component reference: " + component.getURI() + "#" + reference.getName());
+        }
+        
+        for (EndpointReference endpointReference : reference.getEndpointReferences()){
+            RuntimeEndpointReference epr = (RuntimeEndpointReference)endpointReference;
+
+            // If the reference is already resolved then start it now. This currently 
+            // important for async references which have native async bindings as the 
+            // reference provider has to register a response listener regardless of 
+            // whether the reference has been used or not. 
+            if (epr.getStatus() == EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED ||
+                epr.getStatus() == EndpointReference.Status.RESOLVED_BINDING){
+                
+                // As we only care about starting references at build time in the
+                // async case at the moment check that the binding supports native async
+                // and that the reference is an async reference
+                ReferenceBindingProvider bindingProvider = epr.getBindingProvider();
+                if (bindingProvider instanceof EndpointReferenceAsyncProvider &&
+                    ((EndpointReferenceAsyncProvider)bindingProvider).supportsNativeAsync() &&
+                    epr.isAsyncInvocation()){
+                    // it's resolved so start it now
+                    try {
+                        start(compositeContext, epr);
+                    } catch (Throwable ex){
+                        Monitor.error(monitor, this, "core-messages", "StartException", ex);
+                        rethrow(ex);
+                    }  
+                }
+            }
+        }
+    }
+
+    public void stop(Component component, ComponentReference reference) {
+        if (logger.isLoggable(Level.FINE)) {
+            logger.fine("Stopping component reference: " + component.getURI() + "#" + reference.getName());
+        }
+        RuntimeComponentReference runtimeRef = ((RuntimeComponentReference)reference);
+        for ( EndpointReference endpointReference : runtimeRef.getEndpointReferences()){
+            RuntimeEndpointReference epr = (RuntimeEndpointReference) endpointReference;
+            stop(epr);
+        }
+    }
+    
+    public void start(CompositeContext compositeContext, RuntimeEndpointReference endpointReference) {
+        compositeContext.getEndpointRegistry().addEndpointReference(endpointReference);
+        
+        // The act of getting invocation chains starts the reference in the late binding case
+        // so just use that here
+        endpointReference.getInvocationChains();
+    }
+
+    public void stop(RuntimeEndpointReference epr) {
+        if (epr.isStarted()) {
+            CompositeContext compositeContext = epr.getCompositeContext();
+            if (compositeContext == null) {
+                throw new IllegalStateException("The endpoint reference is not bound");
+            }
+            compositeContext.getEndpointRegistry().removeEndpointReference(epr);
+            ReferenceBindingProvider bindingProvider = epr.getBindingProvider();
+            if (bindingProvider != null) {
+                try {
+                    bindingProvider.stop();
+                } catch (Throwable ex){
+                    Monitor.error(monitor, this, "core-messages", "StopException", ex);
+                }  
+            }
+            for (PolicyProvider policyProvider : epr.getPolicyProviders()) {
+                try {
+                    policyProvider.stop();
+                } catch (Throwable ex){
+                    Monitor.error(monitor, this, "core-messages", "StopException", ex);
+                }                      
+            }
+        }
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/DomainRegistryImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/DomainRegistryImpl.java
new file mode 100644
index 0000000000..c8383d3065
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/DomainRegistryImpl.java
@@ -0,0 +1,268 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.concurrent.Callable;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.LifeCycleListener;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.runtime.BaseDomainRegistry;
+import org.apache.tuscany.sca.runtime.ContributionDescription;
+import org.apache.tuscany.sca.runtime.ContributionListener;
+import org.apache.tuscany.sca.runtime.DomainRegistry;
+import org.apache.tuscany.sca.runtime.EndpointListener;
+import org.apache.tuscany.sca.runtime.RuntimeProperties;
+
+/**
+ * A DomainRegistry implementation that sees registrations from the same JVM
+ */
+public class DomainRegistryImpl extends BaseDomainRegistry implements DomainRegistry, LifeCycleListener {
+    private final Logger logger = Logger.getLogger(DomainRegistryImpl.class.getName());
+
+    private List<Endpoint> endpoints = new ArrayList<Endpoint>();
+    private Map<String, Map<String, Composite>> runningComposites = new HashMap<String, Map<String, Composite>>();
+    private Map<String, ContributionDescription> contributionDescriptions = new HashMap<String, ContributionDescription>();
+    
+    protected boolean quietLogging;
+
+    public DomainRegistryImpl(ExtensionPointRegistry extensionPoints, String endpointRegistryURI, String domainURI) {
+        super(extensionPoints, null, endpointRegistryURI, domainURI);
+        Properties runtimeProps = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class).getUtility(RuntimeProperties.class).getProperties();
+        quietLogging = Boolean.parseBoolean(runtimeProps.getProperty(RuntimeProperties.QUIET_LOGGING));
+    }
+
+    public synchronized void addEndpoint(Endpoint endpoint) {
+        endpoints.add(endpoint);
+        for (EndpointListener listener : listeners) {
+            listener.endpointAdded(endpoint);
+        }
+        if (logger.isLoggable(quietLogging ? Level.FINE : Level.INFO)) {
+            String uri = null;
+            Binding b = endpoint.getBinding();
+            if (b != null) {
+                uri = b.getURI();
+                if (uri != null && uri.startsWith("/")) {
+                    uri = uri.substring(1);
+                }
+            }
+            String msg = "Add endpoint - " + (uri == null ? endpoint.getURI() : b.getType().getLocalPart()+" - " + uri);
+            if (quietLogging) {
+                logger.fine(msg);
+            } else {
+                logger.info(msg);
+            }
+        }
+    }
+
+    public List<Endpoint> findEndpoint(String uri) {
+        List<Endpoint> foundEndpoints = new ArrayList<Endpoint>();
+        for (Endpoint endpoint : endpoints) {
+            if (endpoint.matches(uri)) {
+                foundEndpoints.add(endpoint);
+                logger.fine("Found endpoint with matching service  - " + endpoint);
+            }
+            // else the service name doesn't match
+        }
+        return foundEndpoints;
+    }
+    
+    public synchronized void removeEndpoint(Endpoint endpoint) {
+        endpoints.remove(endpoint);
+        endpointRemoved(endpoint);
+        if (logger.isLoggable(quietLogging ? Level.FINE : Level.INFO)) {
+            String uri = null;
+            Binding b = endpoint.getBinding();
+            if (b != null) {
+                uri = b.getURI();
+                if (uri != null && uri.startsWith("/")) {
+                    uri = uri.substring(1);
+                }
+            }
+            String msg = "Remove endpoint - " + (uri == null ? endpoint.getURI() : b.getType().getLocalPart()+" - "+uri);
+            if (quietLogging) {
+                logger.fine(msg);
+            } else {
+                logger.info(msg);
+            }
+        }
+    }
+
+    public synchronized List<Endpoint> getEndpoints() {
+        return endpoints;
+    }
+
+    public synchronized Endpoint getEndpoint(String uri) {
+        for (Endpoint ep : endpoints) {
+            String epURI =
+                ep.getComponent().getURI() + "#" + ep.getService().getName() + "/" + ep.getBinding().getName();
+            if (epURI.equals(uri)) {
+                return ep;
+            }
+            if (ep.getBinding().getName() == null || ep.getBinding().getName().equals(ep.getService().getName())) {
+                epURI = ep.getComponent().getURI() + "#" + ep.getService().getName();
+                if (epURI.equals(uri)) {
+                    return ep;
+                }
+            }
+        }
+        return null;
+
+    }
+
+    public synchronized void updateEndpoint(String uri, Endpoint endpoint) {
+        Endpoint oldEndpoint = getEndpoint(uri);
+        if (oldEndpoint == null) {
+            throw new IllegalArgumentException("Endpoint is not found: " + uri);
+        }
+        endpoints.remove(oldEndpoint);
+        endpoints.add(endpoint);
+        for (EndpointListener listener : listeners) {
+            listener.endpointUpdated(oldEndpoint, endpoint);
+        }
+    }
+
+    public synchronized void start() {
+    }
+
+    public synchronized void stop() {
+        for (Iterator<Endpoint> i = endpoints.iterator(); i.hasNext();) {
+            Endpoint ep = i.next();
+            i.remove();
+            endpointRemoved(ep);
+        }
+        endpointreferences.clear();
+        listeners.clear();
+    }
+
+    public void addRunningComposite(String curi, Composite composite) {
+        Map<String, Composite> cs = runningComposites.get(curi);
+        if (cs == null) {
+            cs = new HashMap<String, Composite>();
+            runningComposites.put(curi, cs);
+        }
+        cs.put(composite.getURI(), composite);
+    }
+
+    public void removeRunningComposite(String curi, String compositeURI) {
+        Map<String, Composite> cs = runningComposites.get(curi);
+        if (cs != null) {
+            cs.remove(compositeURI);
+        }
+    }
+
+    public Composite getRunningComposite(String curi, String compositeURI) {
+        Map<String, Composite> cs = runningComposites.get(curi);
+        if (cs != null) {
+            return cs.get(compositeURI);
+        }
+        return null;
+    }
+
+    public Map<String, List<String>> getRunningCompositeURIs() {
+       Map<String, List<String>> compositeURIs = new HashMap<String, List<String>>();
+       for (String curi : runningComposites.keySet()) {
+           if (runningComposites.get(curi).size() > 0) {
+               List<String> uris = new ArrayList<String>();
+               compositeURIs.put(curi, uris);
+               for (String uri : runningComposites.get(curi).keySet()) {
+                   uris.add(uri);
+               }
+           }
+       }
+        return compositeURIs;
+    }
+
+    public void installContribution(ContributionDescription cd) {
+        contributionDescriptions.put(cd.getURI(), cd);
+    }
+
+    public void uninstallContribution(String uri) {
+        contributionDescriptions.remove(uri);
+        for (ContributionListener listener : contributionlisteners) {
+            listener.contributionRemoved(uri);
+        }
+    }
+
+    public List<String> getInstalledContributionURIs() {
+        return new ArrayList<String>(contributionDescriptions.keySet());
+    }
+
+    public ContributionDescription getInstalledContribution(String uri) {
+        return contributionDescriptions.get(uri);
+    }
+
+    @Override
+    public void updateInstalledContribution(ContributionDescription cd) {
+        contributionDescriptions.put(cd.getURI(), cd);
+        for (ContributionListener listener : contributionlisteners) {
+            listener.contributionUpdated(cd.getURI());
+        }
+    }
+
+    private static final String LOCAL_MEMBER_NAME = "LocalOnly";
+    @Override
+    public List<String> getNodeNames() {
+        return Arrays.asList(new String[]{LOCAL_MEMBER_NAME});
+    }
+
+    @Override
+    public String getLocalNodeName() {
+        return LOCAL_MEMBER_NAME;
+    }
+
+    @Override
+    public String getRunningNodeName(String contributionURI, String compositeURI) {
+        if (getRunningComposite(contributionURI, compositeURI) != null) {
+            return LOCAL_MEMBER_NAME;
+        }
+        return null;
+    }
+
+    @Override
+    public String remoteCommand(String memberName, Callable<String> command) {
+        // TODO or should it just ensure the member name is LocalOnly and the run the command locally?
+        throw new IllegalStateException("not supportted for " + LOCAL_MEMBER_NAME);
+    }
+
+    @Override
+    public String getContainingCompositesContributionURI(String componentName) {
+        for (Map<String, Composite> cs : runningComposites.values()) {
+            for (Composite c : cs.values()) {
+                if (c.getComponent(componentName) != null) {
+                    return c.getContributionURI();
+                }
+            }
+        }
+        return null;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/EndpointSerializerImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/EndpointSerializerImpl.java
new file mode 100644
index 0000000000..4e5275058e
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/EndpointSerializerImpl.java
@@ -0,0 +1,106 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import java.io.StringReader;
+import java.io.StringWriter;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.runtime.EndpointSerializer;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+public class EndpointSerializerImpl implements EndpointSerializer {
+    private ExtensionPointRegistry registry;
+    private XMLInputFactory inputFactory;
+    private XMLOutputFactory outputFactory;
+    private StAXArtifactProcessor<Endpoint> processor;
+    private StAXArtifactProcessor<EndpointReference> refProcessor;
+
+    public EndpointSerializerImpl(ExtensionPointRegistry registry) {
+        this.registry = registry;
+        FactoryExtensionPoint factories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        inputFactory = factories.getFactory(XMLInputFactory.class);
+        outputFactory = factories.getFactory(XMLOutputFactory.class);
+        StAXArtifactProcessorExtensionPoint processors =
+            registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+        processor = processors.getProcessor(Endpoint.class);
+        refProcessor = processors.getProcessor(EndpointReference.class);
+    }
+
+    public Endpoint readEndpoint(String xml) {
+        try {
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(xml));
+            Endpoint result = processor.read(reader, new ProcessorContext(registry));
+            result.setRemote(true);
+            reader.close();
+            return result;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+
+    public String write(Endpoint endpoint) {
+        StringWriter sw = new StringWriter();
+        try {
+            XMLStreamWriter writer = outputFactory.createXMLStreamWriter(sw);
+            processor.write(endpoint, writer, new ProcessorContext(registry));
+            writer.flush();
+            writer.close();
+            return sw.toString();
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+
+    public EndpointReference readEndpointReference(String xml) {
+        try {
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(xml));
+            EndpointReference result = refProcessor.read(reader, new ProcessorContext(registry));
+            reader.close();
+            return result;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+
+    public String write(EndpointReference endpointReference) {
+        StringWriter sw = new StringWriter();
+        try {
+            XMLStreamWriter writer = outputFactory.createXMLStreamWriter(sw);
+            refProcessor.write(endpointReference, writer, new ProcessorContext(registry));
+            writer.flush();
+            writer.close();
+            return sw.toString();
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/LocalDomainRegistryFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/LocalDomainRegistryFactory.java
new file mode 100644
index 0000000000..002eb774ef
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/LocalDomainRegistryFactory.java
@@ -0,0 +1,49 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.runtime.BaseDomainRegistryFactory;
+import org.apache.tuscany.sca.runtime.DomainRegistry;
+
+/**
+ * The utility responsible for finding the endpoint regstry by the scheme and creating instances for the
+ * given domain
+ */
+public class LocalDomainRegistryFactory extends BaseDomainRegistryFactory {
+    private final static String[] schemes = new String[] {"local", "vm"};
+
+    /**
+     * @param extensionRegistry
+     */
+    public LocalDomainRegistryFactory(ExtensionPointRegistry registry) {
+        super(registry);
+    }
+
+    protected DomainRegistry createEndpointRegistry(String endpointRegistryURI, String domainURI) {
+        DomainRegistry domainRegistry =
+            new DomainRegistryImpl(registry, endpointRegistryURI, domainURI);
+        return domainRegistry;
+    }
+
+    public String[] getSupportedSchemes() {
+        return schemes;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/ReferenceParameterProcessor.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/ReferenceParameterProcessor.java
new file mode 100644
index 0000000000..4d6a98ca5f
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/ReferenceParameterProcessor.java
@@ -0,0 +1,98 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.runtime.ReferenceParameters;
+
+/**
+ * Artifact processor for reference parameters.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ReferenceParameterProcessor implements StAXArtifactProcessor<ReferenceParameters> {
+    private static final QName REFERENCE_PARAMETERS =
+        new QName("http://tuscany.apache.org/xmlns/sca/1.1", "referenceParameters", "tuscany");
+    
+    /**
+     * Constructs a new processor.
+     * 
+     * @param modelFactories
+     */
+    public ReferenceParameterProcessor(FactoryExtensionPoint modelFactories) {
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor#getArtifactType()
+     */
+    public QName getArtifactType() {
+        return REFERENCE_PARAMETERS;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor#read(javax.xml.stream.XMLStreamReader, ProcessorContext)
+     */
+    public ReferenceParameters read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException {
+        ReferenceParameters parameters = new ReferenceParametersImpl();
+        parameters.setCallbackID(reader.getAttributeValue(null, "callbackID"));
+        return parameters;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor#write(java.lang.Object, javax.xml.stream.XMLStreamWriter, ProcessorContext)
+     */
+    public void write(ReferenceParameters model, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException,
+        XMLStreamException {
+        writer.writeStartElement(REFERENCE_PARAMETERS.getPrefix(),
+                                 REFERENCE_PARAMETERS.getLocalPart(),
+                                 REFERENCE_PARAMETERS.getNamespaceURI());
+        writer.writeNamespace(REFERENCE_PARAMETERS.getPrefix(), REFERENCE_PARAMETERS.getNamespaceURI());
+
+        if (model.getCallbackID() != null) {
+            writer.writeAttribute("callbackID", model.getCallbackID().toString());
+        }
+        writer.writeEndElement();
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.contribution.processor.ArtifactProcessor#getModelType()
+     */
+    public Class<ReferenceParameters> getModelType() {
+        return ReferenceParameters.class;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.contribution.processor.ArtifactProcessor#resolve(java.lang.Object, org.apache.tuscany.sca.contribution.resolver.ModelResolver, ProcessorContext)
+     */
+    public void resolve(ReferenceParameters model, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/ReferenceParametersImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/ReferenceParametersImpl.java
new file mode 100644
index 0000000000..7bd56271a5
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/ReferenceParametersImpl.java
@@ -0,0 +1,121 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.runtime.ReferenceParameters;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class ReferenceParametersImpl implements ReferenceParameters {
+    private Object callbackID;
+    private EndpointReference callbackReference;
+    private Object callbackObjectID;
+    
+    /**
+     * @return the callbackID
+     */
+    public Object getCallbackID() {
+        return callbackID;
+    }
+    /**
+     * @param callbackID the callbackID to set
+     */
+    public void setCallbackID(Object callbackID) {
+        this.callbackID = callbackID;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.runtime.ReferenceParameters#getCallbackReference()
+     */
+    public EndpointReference getCallbackReference() {
+        return callbackReference;
+    }
+    /**
+     * @see org.apache.tuscany.sca.runtime.ReferenceParameters#setCallback(java.lang.Object)
+     */
+    public void setCallbackReference(EndpointReference callback) {
+        this.callbackReference = callback;
+    }
+    
+    /**
+     * @see java.lang.Object#clone()
+     */
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+
+    /**
+     * @return the callbackObjectID
+     */
+    public Object getCallbackObjectID() {
+        return callbackObjectID;
+    }
+    /**
+     * @param callbackObjectID the callbackObjectID to set
+     */
+    public void setCallbackObjectID(Object callbackObjectID) {
+        this.callbackObjectID = callbackObjectID;
+    }
+    /**
+     * @see java.lang.Object#hashCode()
+     */
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((callbackID == null) ? 0 : callbackID.hashCode());
+        result = prime * result + ((callbackObjectID == null) ? 0 : callbackObjectID.hashCode());
+        result = prime * result + ((callbackReference == null) ? 0 : callbackReference.hashCode());
+        return result;
+    }
+    /**
+     * @see java.lang.Object#equals(java.lang.Object)
+     */
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (!(obj instanceof ReferenceParametersImpl))
+            return false;
+        final ReferenceParametersImpl other = (ReferenceParametersImpl)obj;
+        if (callbackID == null) {
+            if (other.callbackID != null)
+                return false;
+        } else if (!callbackID.equals(other.callbackID))
+            return false;
+        if (callbackObjectID == null) {
+            if (other.callbackObjectID != null)
+                return false;
+        } else if (!callbackObjectID.equals(other.callbackObjectID))
+            return false;
+        if (callbackReference == null) {
+            if (other.callbackReference != null)
+                return false;
+        } else if (!callbackReference.equals(other.callbackReference))
+            return false;
+
+        return true;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentImpl.java
new file mode 100644
index 0000000000..a71c823c11
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentImpl.java
@@ -0,0 +1,158 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.impl.ComponentImpl;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.resolver.ResolverExtension;
+import org.apache.tuscany.sca.core.scope.ScopeContainer;
+import org.apache.tuscany.sca.core.scope.ScopedRuntimeComponent;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.provider.PolicyProvider;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentContext;
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class RuntimeComponentImpl extends ComponentImpl implements RuntimeComponent,
+                                              ScopedRuntimeComponent, ResolverExtension {
+    protected RuntimeComponentContext componentContext;
+    protected ImplementationProvider implementationProvider;
+    protected List<PolicyProvider> policyProviders = new ArrayList<PolicyProvider>();
+    protected ScopeContainer scopeContainer;
+    protected boolean started;
+    protected ModelResolver modelResolver;
+
+    /**
+     */
+    public RuntimeComponentImpl() {
+        super();
+    }
+
+    public ImplementationProvider getImplementationProvider() {
+        return implementationProvider;
+    }
+
+    public void setImplementationProvider(ImplementationProvider provider) {
+        this.implementationProvider = provider;
+    }
+
+    public ScopeContainer getScopeContainer() {
+        return scopeContainer;
+    }
+
+    public void setScopeContainer(ScopeContainer scopeContainer) {
+        this.scopeContainer = scopeContainer;
+    }
+    
+    public boolean isStarted() {
+        return started;
+    }
+
+    public void setStarted(boolean started) {
+        this.started = started;
+    }
+
+    /**
+     * @return the componentContext
+     */
+    public RuntimeComponentContext getComponentContext() {
+        return componentContext;
+    }
+
+    /**
+     * @param componentContext the componentContext to set
+     */
+    public void setComponentContext(RuntimeComponentContext componentContext) {
+        this.componentContext = componentContext;
+    }
+
+    public void addPolicyProvider(PolicyProvider policyProvider) {
+        policyProviders.add(policyProvider);
+    }
+
+    public List<PolicyProvider> getPolicyProviders() {
+        return policyProviders;
+    }
+
+    public ModelResolver getModelResolver() {
+        return modelResolver;
+    }
+    
+    public void setModelResolver(ModelResolver modelResolver) {
+        this.modelResolver = modelResolver;
+    }
+
+    @Override
+    public String toString() {
+        return getName();
+    }
+
+    @Override
+    public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String serviceName) {
+        RuntimeComponentContext componentContext = null;
+
+        // If the component is a composite, then we need to find the
+        // non-composite component that provides the requested service
+        if (getImplementation() instanceof Composite) {
+            for (ComponentService componentService : getServices()) {
+                String bindingName = null;
+                if (serviceName != null) {
+                    int index = serviceName.indexOf('/');
+                    if (index != -1) {
+                        bindingName = serviceName.substring(index + 1);
+                        serviceName = serviceName.substring(0, index);
+                    }
+                }
+                if (serviceName == null || serviceName.equals(componentService.getName())) {
+                    CompositeService compositeService = (CompositeService)componentService.getService();
+                    if (compositeService != null) {
+                        componentContext =
+                            ((RuntimeComponent)compositeService.getPromotedComponent()).getComponentContext();
+                        serviceName = compositeService.getPromotedService().getName();
+                        if (bindingName != null) {
+                            serviceName = serviceName + "/" + bindingName;
+                        }
+                        return componentContext.createSelfReference(businessInterface, serviceName);
+                    }
+                    break;
+                }
+            }
+            // No matching service found
+            throw new ServiceRuntimeException("Composite service not found: " + serviceName);
+        } else {
+            componentContext = getComponentContext();
+            if (serviceName != null) {
+                return componentContext.createSelfReference(businessInterface, serviceName);
+            } else {
+                return componentContext.createSelfReference(businessInterface);
+            }
+        }
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentReferenceImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentReferenceImpl.java
new file mode 100644
index 0000000000..2eea60ccea
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentReferenceImpl.java
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import org.apache.tuscany.sca.assembly.impl.ComponentReferenceImpl;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+
+/**
+ * Implementation of a Component Reference.
+ *
+ * @version $Rev$ $Date$
+ */
+public class RuntimeComponentReferenceImpl extends ComponentReferenceImpl implements RuntimeComponentReference {
+
+    private RuntimeComponent component;
+
+    public RuntimeComponentReferenceImpl() {
+        super();
+    }
+
+    /**
+     * @return the component
+     */
+    public RuntimeComponent getComponent() {
+        return component;
+    }
+
+    /**
+     * @param component the component to set
+     */
+    public void setComponent(RuntimeComponent component) {
+        this.component = component;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.assembly.impl.ComponentReferenceImpl#clone()
+     */
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        RuntimeComponentReferenceImpl ref = (RuntimeComponentReferenceImpl)super.clone();
+        return ref;
+    }
+
+    @Override
+    public String toString() {
+        return getName();
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentServiceImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentServiceImpl.java
new file mode 100644
index 0000000000..bc7e6df878
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeComponentServiceImpl.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import org.apache.tuscany.sca.assembly.impl.ComponentServiceImpl;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+/**
+ * Implementation of a Component Service.
+ *
+ * @version $Rev$ $Date$
+ */
+public class RuntimeComponentServiceImpl extends ComponentServiceImpl implements RuntimeComponentService {
+
+    public RuntimeComponentServiceImpl() {
+        super();
+    }
+
+    @Override
+    public String toString() {
+        return getName();
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeEndpointImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeEndpointImpl.java
new file mode 100644
index 0000000000..9248d35db3
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeEndpointImpl.java
@@ -0,0 +1,1042 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.io.StringReader;
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Contract;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilder;
+import org.apache.tuscany.sca.assembly.builder.BuilderContext;
+import org.apache.tuscany.sca.assembly.builder.BuilderExtensionPoint;
+import org.apache.tuscany.sca.assembly.impl.EndpointImpl;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.ValidatingXMLInputFactory;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ExtensionPointRegistryLocator;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.core.assembly.RuntimeAssemblyFactory;
+import org.apache.tuscany.sca.core.invocation.AsyncResponseService;
+import org.apache.tuscany.sca.core.invocation.Constants;
+import org.apache.tuscany.sca.core.invocation.ExtensibleWireProcessor;
+import org.apache.tuscany.sca.core.invocation.NonBlockingInterceptor;
+import org.apache.tuscany.sca.core.invocation.RuntimeInvoker;
+import org.apache.tuscany.sca.core.invocation.impl.InvocationChainImpl;
+import org.apache.tuscany.sca.core.invocation.impl.PhaseManager;
+import org.apache.tuscany.sca.interfacedef.Compatibility;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.InterceptorAsync;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.apache.tuscany.sca.provider.BindingProviderFactory;
+import org.apache.tuscany.sca.provider.EndpointAsyncProvider;
+import org.apache.tuscany.sca.provider.EndpointProvider;
+import org.apache.tuscany.sca.provider.ImplementationAsyncProvider;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.provider.OptimisingBindingProvider;
+import org.apache.tuscany.sca.provider.PolicyProvider;
+import org.apache.tuscany.sca.provider.PolicyProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
+import org.apache.tuscany.sca.provider.ServiceBindingProvider;
+import org.apache.tuscany.sca.runtime.DomainRegistryFactory;
+import org.apache.tuscany.sca.runtime.DomainRegistry;
+import org.apache.tuscany.sca.runtime.EndpointSerializer;
+import org.apache.tuscany.sca.runtime.ExtensibleDomainRegistryFactory;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.apache.tuscany.sca.runtime.RuntimeWireProcessor;
+import org.apache.tuscany.sca.runtime.RuntimeWireProcessorExtensionPoint;
+import org.apache.tuscany.sca.work.WorkScheduler;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Runtime model for Endpoint that supports java serialization
+ */
+public class RuntimeEndpointImpl extends EndpointImpl implements RuntimeEndpoint, Externalizable {
+    private static final long serialVersionUID = 1L;
+    private transient CompositeContext compositeContext;
+    private transient RuntimeWireProcessor wireProcessor;
+    private transient ProviderFactoryExtensionPoint providerFactories;
+    private transient InterfaceContractMapper interfaceContractMapper;
+    private transient WorkScheduler workScheduler;
+    private transient PhaseManager phaseManager;
+    private transient MessageFactory messageFactory;
+    private transient RuntimeInvoker invoker;
+    private transient EndpointSerializer serializer;
+
+    private transient List<InvocationChain> chains;
+    private transient Map<Operation, InvocationChain> invocationChainMap =
+        new ConcurrentHashMap<Operation, InvocationChain>();
+    private transient InvocationChain bindingInvocationChain;
+
+    private transient ServiceBindingProvider bindingProvider;
+    private transient List<PolicyProvider> policyProviders;
+    private String xml;
+
+    protected InterfaceContract bindingInterfaceContract;
+    protected InterfaceContract serviceInterfaceContract;
+    
+    private RuntimeEndpoint delegateEndpoint;
+    
+    /**
+     * No-arg constructor for Java serialization
+     */
+    public RuntimeEndpointImpl() {
+        super(null);
+    }
+
+    public RuntimeEndpointImpl(ExtensionPointRegistry registry) {
+        super(registry);
+    }
+
+    protected void copyFrom(RuntimeEndpointImpl copy) {
+        this.xml = copy.xml;
+
+        this.component = copy.component;
+        this.service = copy.service;
+        this.interfaceContract = copy.interfaceContract;
+        this.serviceInterfaceContract = copy.serviceInterfaceContract;
+
+        this.binding = copy.binding;
+        this.bindingInterfaceContract = copy.interfaceContract;
+        this.bindingInvocationChain = copy.bindingInvocationChain;
+
+        this.callbackEndpointReferences = copy.callbackEndpointReferences;
+
+        this.requiredIntents = copy.requiredIntents;
+        this.policySets = copy.policySets;
+
+        this.uri = copy.uri;
+        this.remote = copy.remote;
+        this.unresolved = copy.unresolved;
+
+        this.chains = copy.chains;
+        this.invocationChainMap = copy.invocationChainMap;
+        this.bindingProvider = copy.bindingProvider;
+        this.policyProviders = copy.policyProviders;
+
+        if (this.compositeContext == null && copy.compositeContext != null) {
+            bind(copy.compositeContext);
+        }
+    }
+
+    public void bind(CompositeContext compositeContext) {
+        this.compositeContext = compositeContext;
+        bind(compositeContext.getExtensionPointRegistry(), compositeContext.getEndpointRegistry());
+    }
+
+    public void bind(ExtensionPointRegistry registry, DomainRegistry domainRegistry) {
+        if (compositeContext == null) {
+            compositeContext = new CompositeContext(registry, domainRegistry);
+        }
+
+        // if interfaceContractMapper is already initialized then all the rest will be too
+        if (interfaceContractMapper != null) {
+            return;
+        }
+        this.registry = registry;
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        this.interfaceContractMapper = utilities.getUtility(InterfaceContractMapper.class);
+        this.workScheduler = utilities.getUtility(WorkScheduler.class);
+        this.wireProcessor =
+            new ExtensibleWireProcessor(registry.getExtensionPoint(RuntimeWireProcessorExtensionPoint.class));
+
+        this.messageFactory = registry.getExtensionPoint(FactoryExtensionPoint.class).getFactory(MessageFactory.class);
+        this.invoker = new RuntimeInvoker(registry, this);
+
+        this.phaseManager = utilities.getUtility(PhaseManager.class);
+        this.serializer = utilities.getUtility(EndpointSerializer.class);
+        this.providerFactories = registry.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+        this.builders = registry.getExtensionPoint(BuilderExtensionPoint.class);
+        this.contractBuilder = builders.getContractBuilder();
+    }
+
+    public void unbind() {
+        compositeContext = null;
+        bindingInvocationChain = null;
+        chains = null;
+        bindingProvider = null;
+        policyProviders = null;
+        invocationChainMap.clear();
+    }
+
+    public synchronized List<InvocationChain> getInvocationChains() {
+        if (chains == null) {
+            initInvocationChains();
+        }
+        return chains;
+    }
+
+    public synchronized InvocationChain getBindingInvocationChain() {
+        if (bindingInvocationChain == null) {
+            bindingInvocationChain = new InvocationChainImpl(null, null, false, phaseManager, isAsyncInvocation());
+            initServiceBindingInvocationChains();
+        }
+        
+        // Init the operation invocation chains now. We know they will 
+        // be needed as well as the binding invocation chain and this
+        // makes the wire processors run
+        getInvocationChains();
+        
+        return bindingInvocationChain;
+    }
+
+    /**
+     * A dummy invocation chain representing null as ConcurrentHashMap doesn't allow null values
+     */
+    private static final InvocationChain NULL_CHAIN = new InvocationChainImpl(null, null, false, null, false);
+
+    public InvocationChain getInvocationChain(Operation operation) {
+        InvocationChain cached = invocationChainMap.get(operation);
+        if (cached == null) {
+            for (InvocationChain chain : getInvocationChains()) {
+                Operation op = chain.getTargetOperation();
+
+                // We used to check compatibility here but this is now validated when the 
+                // chain is created. As the chain operations are the real interface types 
+                // they may be incompatible just because they are described in different 
+                // IDLs
+                if (operation.getInterface().isRemotable()) {
+                    if (operation.getName().equals(op.getName())) {
+                        invocationChainMap.put(operation, chain);
+                        return chain;
+                    }
+                    if (interfaceContractMapper.isCompatible(operation, op, Compatibility.SUBSET)) {
+                        invocationChainMap.put(operation, chain);
+                        return chain;
+                    }
+                } else {
+                    // [rfeng] We need to run the compatibility check for local operations as they 
+                    // can be overloaded
+                    if (interfaceContractMapper.isCompatible(operation, op, Compatibility.SUBSET)) {
+                        invocationChainMap.put(operation, chain);
+                        return chain;
+                    }
+                }
+            }
+            // Cache it with the NULL_CHAIN to avoid NPE
+            invocationChainMap.put(operation, NULL_CHAIN);
+            return null;
+        } else {
+            if (cached == NULL_CHAIN) {
+                cached = null;
+            }
+            return cached;
+        }
+    }
+
+    public Message invoke(Message msg) {
+    	// Deal with async callback
+    	// Ensure invocation chains are built...
+    	getInvocationChains();
+    	// async callback handling
+    	if( this.isAsyncInvocation() && !this.getCallbackEndpointReferences().isEmpty() ) {
+    		RuntimeEndpointReference asyncEPR = (RuntimeEndpointReference) this.getCallbackEndpointReferences().get(0);
+    		// Place a link to the callback EPR into the message headers...
+    		msg.getHeaders().put(Constants.ASYNC_CALLBACK, asyncEPR );
+    	} 
+    	// end of async callback handling
+        return invoker.invokeBinding(msg);
+    }
+
+    public Object invoke(Operation operation, Object[] args) throws InvocationTargetException {
+        return invoker.invoke(operation, args);
+    }
+
+    public Message invoke(Operation operation, Message msg) {
+        return invoker.invoke(operation, msg);
+    }
+    
+    public void invokeAsync(Message msg){
+        invoker.invokeBindingAsync(msg);
+    } // end method invokeAsync(Message)
+    
+    public void invokeAsync(Operation operation, Message msg){
+        msg.setOperation(operation);
+        invoker.invokeAsync(msg);
+    } // end method invokeAsync(Operation, Message)
+    
+    public void invokeAsyncResponse(Message msg){
+        resolve();
+        invoker.invokeAsyncResponse(msg);
+    }
+
+    /**
+     * Navigate the component/componentType inheritance chain to find the leaf contract
+     * @param contract
+     * @return
+     */
+    private Contract getLeafContract(Contract contract) {
+        Contract prev = null;
+        Contract current = contract;
+        while (current != null) {
+            prev = current;
+            if (current instanceof ComponentReference) {
+                current = ((ComponentReference)current).getReference();
+            } else if (current instanceof CompositeReference) {
+                current = ((CompositeReference)current).getPromotedReferences().get(0);
+            } else if (current instanceof ComponentService) {
+                current = ((ComponentService)current).getService();
+            } else if (current instanceof CompositeService) {
+                current = ((CompositeService)current).getPromotedService();
+            } else {
+                break;
+            }
+            if (current == null) {
+                return prev;
+            }
+        }
+        return current;
+    }
+
+    /**
+     * Initialize the invocation chains
+     */
+    private void initInvocationChains() {
+        chains = new ArrayList<InvocationChain>();
+        InterfaceContract sourceContract = getBindingInterfaceContract();
+
+        // It's the service wire
+        RuntimeComponentService service = (RuntimeComponentService)getService();
+        RuntimeComponent serviceComponent = (RuntimeComponent)getComponent();
+
+        //InterfaceContract targetContract = getInterfaceContract();
+        // TODO - EPR - why is this looking at the component types. The endpoint should have the right interface contract by this time
+        InterfaceContract targetContract = getComponentTypeServiceInterfaceContract();
+        // setInterfaceContract(targetContract);
+        validateServiceInterfaceCompatibility();
+        for (Operation operation : sourceContract.getInterface().getOperations()) {
+            Operation targetOperation = interfaceContractMapper.map(targetContract.getInterface(), operation);
+            if (targetOperation == null) {
+                throw new ServiceRuntimeException("No matching operation for " + operation.getName()
+                    + " is found in service "
+                    + serviceComponent.getURI()
+                    + "#"
+                    + service.getName());
+            }
+            InvocationChain chain = new InvocationChainImpl(operation, targetOperation, false, phaseManager, isAsyncInvocation());
+            if (operation.isNonBlocking()) {
+                addNonBlockingInterceptor(chain);
+            }
+            addServiceBindingInterceptor(chain, operation);
+            addImplementationInterceptor(serviceComponent, service, chain, targetOperation);
+            chains.add(chain);
+            
+            // Handle cases where the operation is an async server 
+            if( targetOperation.isAsyncServer() ) {
+            	createAsyncServerCallback();
+            } // end if
+        }
+
+        wireProcessor.process(this);
+        
+        // If we have to support async and there is no binding chain
+        // then set the response path to point directly to the 
+        // binding provided async response handler
+        if (isAsyncInvocation() && 
+            bindingInvocationChain == null){
+            // fix up the operation chain response path to point back to the 
+            // binding provided async response handler
+            ServiceBindingProvider serviceBindingProvider = getBindingProvider();
+            if (serviceBindingProvider instanceof EndpointAsyncProvider){
+                EndpointAsyncProvider asyncEndpointProvider = (EndpointAsyncProvider)serviceBindingProvider;
+                InvokerAsyncResponse asyncResponseInvoker = asyncEndpointProvider.createAsyncResponseInvoker();
+                
+                for (InvocationChain chain : getInvocationChains()){
+                    Invoker invoker = chain.getHeadInvoker();
+                    if (invoker instanceof InterceptorAsync){
+                        ((InterceptorAsync)invoker).setPrevious(asyncResponseInvoker);
+                    } else {
+                        //TODO - throw error once the old async code is removed
+                    } // end if
+                } // end for
+            } else {
+                // TODO - throw error once the old async code is removed
+            } // end if
+        } // end if
+        
+        ServiceBindingProvider provider = getBindingProvider();
+        if ((provider != null) && (provider instanceof OptimisingBindingProvider)) {
+        	//TODO - remove this comment once optimisation codepath is tested
+            ((OptimisingBindingProvider)provider).optimiseBinding( this );
+        } // end if
+
+    } // end method initInvocationChains
+    
+    /**
+     * Creates the async callback for this Endpoint, if it does not already exist
+     * and stores it into the Endpoint
+     */
+    public void createAsyncServerCallback( ) {
+    	// No need to create a callback if the Binding supports async natively...
+    	if( hasNativeAsyncBinding(this) ) return;
+    	
+    	// Check to see if the callback already exists
+    	if( asyncCallbackExists( this ) ) return;
+    	
+    	RuntimeEndpointReference asyncEPR = createAsyncEPR( this );
+    	
+    	// Store the new callback EPR into the Endpoint
+    	this.getCallbackEndpointReferences().add(asyncEPR);
+    	
+    	// Also store the callback EPR into the DomainRegistry
+    	DomainRegistry epReg = getEndpointRegistry( registry );
+    	if( epReg != null ) epReg.addEndpointReference(asyncEPR);
+    } // end method createAsyncServerCallback
+    
+    public RuntimeEndpointReference getAsyncServerCallback() {
+    	
+    	return (RuntimeEndpointReference) this.getCallbackEndpointReferences().get(0);
+    } // end method getAsyncServerCallback
+    
+    
+    /**
+     * Indicates if a given endpoint has a Binding that supports native async invocation
+     * @param endpoint - the endpoint
+     * @return - true if the endpoint has a binding that supports native async, false otherwise
+     */
+    private boolean hasNativeAsyncBinding(RuntimeEndpoint endpoint) {
+    	ServiceBindingProvider provider = endpoint.getBindingProvider();
+    	if( provider instanceof EndpointAsyncProvider ) {
+    		EndpointAsyncProvider asyncProvider = (EndpointAsyncProvider) provider;
+    		if( asyncProvider.supportsNativeAsync()  ) return true;
+    	} // end if
+		return false;
+	} // end method hasNativeAsyncBinding
+
+	/**
+     * Creates the Endpoint object for the async callback
+     * @param endpoint - the endpoint which has the async server operations
+     * @return the EndpointReference object representing the callback
+     */
+    private RuntimeEndpointReference createAsyncEPR( RuntimeEndpoint endpoint ){
+    	CompositeContext compositeContext = endpoint.getCompositeContext();
+    	RuntimeAssemblyFactory assemblyFactory = getAssemblyFactory( compositeContext );
+        RuntimeEndpointReference epr = (RuntimeEndpointReference)assemblyFactory.createEndpointReference();
+        epr.bind( compositeContext );
+        
+        // Create pseudo-component
+        epr.setComponent(component);
+        
+        // Create pseudo-reference
+        ComponentReference reference = assemblyFactory.createComponentReference();
+    	  ExtensionPointRegistry registry = compositeContext.getExtensionPointRegistry();
+        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        JavaInterfaceFactory javaInterfaceFactory = (JavaInterfaceFactory)modelFactories.getFactory(JavaInterfaceFactory.class);
+        JavaInterfaceContract interfaceContract = javaInterfaceFactory.createJavaInterfaceContract();
+        try {
+			interfaceContract.setInterface(javaInterfaceFactory.createJavaInterface(AsyncResponseService.class));
+		} catch (InvalidInterfaceException e1) {
+			// Nothing to do here - will not happen
+		} // end try
+		reference.setInterfaceContract(interfaceContract);
+        String referenceName = endpoint.getService().getName() + "_asyncCallback";
+        reference.setName(referenceName);
+        reference.setForCallback(true);
+        // Add in "implementation" reference (really a dummy, but with correct interface)
+        Reference implReference = assemblyFactory.createReference();
+        implReference.setInterfaceContract(interfaceContract);
+        implReference.setName(referenceName);
+        implReference.setForCallback(true);
+        
+        reference.setReference(implReference);
+        // Set the created ComponentReference into the EPR
+        epr.setReference(reference);
+        
+        // Create a binding
+		Binding binding = createMatchingBinding( endpoint.getBinding(), (RuntimeComponent)endpoint.getComponent(), reference, registry );			
+		epr.setBinding(binding);
+		
+		// Need to establish policies here (binding has some...)
+		epr.getRequiredIntents().addAll( endpoint.getRequiredIntents() );
+		epr.getPolicySets().addAll( endpoint.getPolicySets() );
+		
+		// Attach a dummy endpoint to the epr
+		RuntimeEndpoint ep = (RuntimeEndpoint)assemblyFactory.createEndpoint();
+		ep.setUnresolved(false);
+		epr.setTargetEndpoint(ep);
+		//epr.setStatus(EndpointReference.Status.RESOLVED_BINDING);
+		epr.setStatus(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED);
+		epr.setUnresolved(false);
+		
+		// Set the URI for the EPR
+		String eprURI = endpoint.getComponent().getName() + "#reference-binding(" + referenceName + "/" + referenceName + ")";
+		epr.setURI(eprURI);
+        
+    	return epr;
+    } // end method RuntimeEndpointReference
+    
+    private boolean asyncCallbackExists( RuntimeEndpoint endpoint ) {
+    	if( endpoint.getCallbackEndpointReferences().isEmpty() ) return false;
+    	return true;
+    } // end method asyncCallbackExists
+    
+    /**
+     * Create a matching binding to a supplied binding
+     * - the matching binding has the same binding type, but is for the supplied component and service
+     * @param matchBinding - the binding to match
+     * @param component - the component 
+     * @param service - the service
+     * @param registry - registry for extensions
+     * @return - the matching binding, or null if it could not be created
+     */
+    @SuppressWarnings("unchecked")
+	private Binding createMatchingBinding( Binding matchBinding, RuntimeComponent component, 
+			                               ComponentReference reference, ExtensionPointRegistry registry ) {
+    	// Since there is no simple way to obtain a Factory for a binding where the type is not known ahead of
+    	// time, the process followed here is to generate the <binding.xxx/> XML element from the binding type QName
+    	// and then read the XML using the processor for that XML...
+    	QName bindingName = matchBinding.getType();
+    	String bindingXML = "<ns1:" + bindingName.getLocalPart() + " xmlns:ns1='" + bindingName.getNamespaceURI() + "'/>";
+    	
+    	StAXArtifactProcessorExtensionPoint processors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+    	StAXArtifactProcessor<?> processor = (StAXArtifactProcessor<?>)processors.getProcessor(bindingName);
+    	
+    	FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+    	ValidatingXMLInputFactory inputFactory = modelFactories.getFactory(ValidatingXMLInputFactory.class);    		
+    	StreamSource source = new StreamSource( new StringReader(bindingXML) );
+    	
+    	ProcessorContext context = new ProcessorContext();
+		try {
+			XMLStreamReader reader = inputFactory.createXMLStreamReader(source);
+			reader.next();
+			Binding newBinding = (Binding) processor.read(reader, context );
+			newBinding.setName(reference.getName());
+			
+			// Create a URI address for the callback based on the Component_Name/Reference_Name pattern
+			//String callbackURI = "/" + component.getName() + "/" + reference.getName();
+			//newBinding.setURI(callbackURI);
+			
+			BuilderExtensionPoint builders = registry.getExtensionPoint(BuilderExtensionPoint.class);
+			BindingBuilder builder = builders.getBindingBuilder(newBinding.getType());
+            if (builder != null) {
+            	org.apache.tuscany.sca.assembly.builder.BuilderContext builderContext = new BuilderContext(registry);
+            	builder.build(component, reference, newBinding, builderContext, true);
+            } // end if
+			
+			return newBinding;
+		} catch (ContributionReadException e) {
+			e.printStackTrace();
+		} catch (XMLStreamException e) {
+			e.printStackTrace();
+		}
+    	
+    	return null;
+    } // end method createMatchingBinding
+    
+    /**
+     * Gets a RuntimeAssemblyFactory from the CompositeContext
+     * @param compositeContext
+     * @return the RuntimeAssemblyFactory
+     */
+    private RuntimeAssemblyFactory getAssemblyFactory( CompositeContext compositeContext ) {
+    	ExtensionPointRegistry registry = compositeContext.getExtensionPointRegistry();
+        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        return (RuntimeAssemblyFactory)modelFactories.getFactory(AssemblyFactory.class);
+    } // end method RuntimeAssemblyFactory
+    
+    /**
+     * Check that endpoint  has compatible interface at the component and binding ends. 
+     * The user can specify the interfaces at both ends so there is a danger that they won't be compatible.
+     */
+    public void validateServiceInterfaceCompatibility() {
+        
+        InterfaceContract serviceContract = getComponentServiceInterfaceContract();
+        InterfaceContract bindingContract = getBindingInterfaceContract();
+                
+        if ((serviceContract != bindingContract) && 
+            (serviceContract != null) && (bindingContract != null)) {
+           
+            boolean bindingHasCallback = bindingContract.getCallbackInterface() != null;
+            
+            try {                                                         
+               
+                // Use the normalized contract if the interface types are different or if 
+                // a normalized contract has been previously generate, for example, by virtue
+                // of finding a JAXWS annotation on a Java class that references a WSDL file
+                if (serviceContract.getClass() != bindingContract.getClass() ||
+                    serviceContract.getNormalizedWSDLContract() != null ||
+                    bindingContract.getNormalizedWSDLContract() != null) {
+                    interfaceContractMapper.checkCompatibility(getGeneratedWSDLContract(serviceContract), 
+                                                               getGeneratedWSDLContract(bindingContract), 
+                                                               Compatibility.SUBSET, 
+                                                               !bindingHasCallback, // ignore callbacks if binding doesn't have one 
+                                                               false);
+                } else {
+                    interfaceContractMapper.checkCompatibility(serviceContract, 
+                                                               bindingContract, 
+                                                               Compatibility.SUBSET, 
+                                                               !bindingHasCallback, // ignore callbacks if binding doesn't have one 
+                                                               false);                   
+                }  
+            } catch (Exception ex){
+                throw new ServiceRuntimeException("Component " +
+                                                  this.getComponent().getName() +
+                                                  " Service " +
+                                                  getService().getName() +
+                                                  " interface is incompatible with the interface of the service binding  - " + 
+                                                  getBinding().getName() +
+                                                  " - " + 
+                                                  ex.getMessage() +
+                                                  " - [" + this.toString() + "]");
+            }
+        }
+                
+    }    
+
+    private void initServiceBindingInvocationChains() {
+
+        // add the binding interceptors to the service binding wire
+        ServiceBindingProvider provider = getBindingProvider();
+        if ((provider != null) && (provider instanceof EndpointProvider)) {
+            ((EndpointProvider)provider).configure();
+        }
+
+        // add the policy interceptors to the service binding wire
+        List<PolicyProvider> pps = getPolicyProviders();
+        if (pps != null) {
+            for (PolicyProvider p : pps) {
+                Interceptor interceptor = p.createBindingInterceptor();
+                if (interceptor != null) {
+                    bindingInvocationChain.addInterceptor(interceptor);
+                } // end if
+            } // end for
+        } // end if
+        
+        // This is strategically placed before the RuntimeInvoker is added to the end of the
+        // binding chain as the RuntimeInvoker doesn't need to take part in the response
+        // processing and doesn't implement InvokerAsyncResponse
+        ServiceBindingProvider serviceBindingProvider = getBindingProvider();
+        if (isAsyncInvocation() &&
+            serviceBindingProvider instanceof EndpointAsyncProvider &&
+            ((EndpointAsyncProvider)serviceBindingProvider).supportsNativeAsync()){
+            // fix up the invocation chains to point back to the 
+            // binding chain so that async response messages 
+            // are processed correctly
+            for (InvocationChain chain : getInvocationChains()){
+                Invoker invoker = chain.getHeadInvoker();
+                ((InterceptorAsync)invoker).setPrevious((InvokerAsyncResponse)bindingInvocationChain.getTailInvoker());
+            } // end for
+            
+            // fix up the binding chain response path to point back to the 
+            // binding provided async response handler
+            EndpointAsyncProvider asyncEndpointProvider = (EndpointAsyncProvider)serviceBindingProvider;
+            InvokerAsyncResponse asyncResponseInvoker = asyncEndpointProvider.createAsyncResponseInvoker();
+            ((InterceptorAsync)bindingInvocationChain.getHeadInvoker()).setPrevious(asyncResponseInvoker);
+        } // end if
+        
+        // Add the runtime invoker to the end of the binding chain. 
+        // It mediates between the binding chain and selects the 
+        // correct invocation chain based on the operation that's
+        // been selected
+        bindingInvocationChain.addInvoker(invoker); 
+        
+    } // end method initServiceBindingInvocationChains
+
+    /**
+     * Add the interceptor for a binding
+     *
+     * @param reference
+     * @param binding
+     * @param chain
+     * @param operation
+     */
+    private void addServiceBindingInterceptor(InvocationChain chain, Operation operation) {
+        List<PolicyProvider> pps = getPolicyProviders();
+        if (pps != null) {
+            for (PolicyProvider p : pps) {
+                Interceptor interceptor = p.createInterceptor(operation);
+                if (interceptor != null) {
+                    chain.addInterceptor(interceptor);
+                }
+            }
+        }
+    }
+
+    /**
+     * Add a non-blocking interceptor if the service binding needs it
+     *
+     * @param service
+     * @param binding
+     * @param chain
+     */
+    private void addNonBlockingInterceptor(InvocationChain chain) {
+        ServiceBindingProvider provider = getBindingProvider();
+        if (provider != null) {
+            if (!provider.supportsOneWayInvocation()) {
+                chain.addInterceptor(Phase.SERVICE, new NonBlockingInterceptor(workScheduler));
+            }
+        }
+    }
+
+    /**
+     * Add the interceptor for a component implementation
+     *
+     * @param component
+     * @param service
+     * @param chain
+     * @param operation
+     */
+    private void addImplementationInterceptor(Component component,
+                                              ComponentService service,
+                                              InvocationChain chain,
+                                              Operation operation) {
+
+        if (service.getService() instanceof CompositeService) {
+            CompositeService compositeService = (CompositeService)service.getService();
+            component = getPromotedComponent(compositeService);
+            service = getPromotedComponentService(compositeService);
+        }
+
+        ImplementationProvider provider = ((RuntimeComponent)component).getImplementationProvider();
+
+        if (provider != null) {
+            Invoker invoker = null;
+            RuntimeComponentService runtimeService = (RuntimeComponentService)service;
+            if (runtimeService.getName().endsWith("_asyncCallback")){
+                if (provider instanceof ImplementationAsyncProvider){
+                    invoker = (Invoker)((ImplementationAsyncProvider)provider).createAsyncResponseInvoker(operation);
+                } else {
+                    // TODO - This should be an error but taking account of the 
+                    // existing non-native async support
+                    invoker = provider.createInvoker((RuntimeComponentService)service, operation); 
+/*                    
+                    throw new ServiceRuntimeException("Component " +
+                            this.getComponent().getName() +
+                            " Service " +
+                            getService().getName() +
+                            " implementation provider doesn't implement ImplementationAsyncProvider but the implementation uses a " + 
+                            "refrence interface with the asyncInvocation intent set" +
+                            " - [" + this.toString() + "]");
+*/
+                }
+            } else if (isAsyncInvocation() && 
+                       provider instanceof ImplementationAsyncProvider){
+                invoker = (Invoker)((ImplementationAsyncProvider)provider).createAsyncInvoker((RuntimeComponentService)service, operation);
+            } else {
+                invoker = provider.createInvoker((RuntimeComponentService)service, operation);
+            }
+            chain.addInvoker(invoker);
+        }
+
+        List<PolicyProvider> pps = ((RuntimeComponent)component).getPolicyProviders();
+        if (pps != null) {
+            for (PolicyProvider p : pps) {
+                Interceptor interceptor = p.createInterceptor(operation);
+                if (interceptor != null) {
+                    chain.addInterceptor(interceptor);
+                }
+            }
+        }
+    }
+
+    /**
+     * @see java.lang.Object#clone()
+     */
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        RuntimeEndpointImpl copy = (RuntimeEndpointImpl)super.clone();
+        copy.invoker = new RuntimeInvoker(registry, copy);
+        return copy;
+    }
+
+    /**
+     * Follow a service promotion chain down to the inner most (non composite)
+     * component service.
+     * 
+     * @param topCompositeService
+     * @return
+     */
+    private ComponentService getPromotedComponentService(CompositeService compositeService) {
+        ComponentService componentService = compositeService.getPromotedService();
+        if (componentService != null) {
+            Service service = componentService.getService();
+            if (componentService.getName() != null && service instanceof CompositeService) {
+
+                // Continue to follow the service promotion chain
+                return getPromotedComponentService((CompositeService)service);
+
+            } else {
+
+                // Found a non-composite service
+                return componentService;
+            }
+        } else {
+
+            // No promoted service
+            return null;
+        }
+    }
+
+    /**
+     * Follow a service promotion chain down to the innermost (non-composite) component.
+     * 
+     * @param compositeService
+     * @return
+     */
+    private Component getPromotedComponent(CompositeService compositeService) {
+        ComponentService componentService = compositeService.getPromotedService();
+        if (componentService != null) {
+            Service service = componentService.getService();
+            if (componentService.getName() != null && service instanceof CompositeService) {
+
+                // Continue to follow the service promotion chain
+                return getPromotedComponent((CompositeService)service);
+
+            } else {
+
+                // Found a non-composite service
+                return compositeService.getPromotedComponent();
+            }
+        } else {
+
+            // No promoted service
+            return null;
+        }
+    }
+
+    public synchronized ServiceBindingProvider getBindingProvider() {
+        resolve();
+        if (bindingProvider == null) {
+            BindingProviderFactory factory =
+                (BindingProviderFactory)providerFactories.getProviderFactory(getBinding().getClass());
+            if (factory == null) {
+                throw new ServiceRuntimeException("No provider factory is registered for binding " + getBinding()
+                    .getType());
+            }
+            this.bindingProvider = factory.createServiceBindingProvider(this);
+        }
+        return bindingProvider;
+    }
+
+    public synchronized List<PolicyProvider> getPolicyProviders() {
+        resolve();
+        if (policyProviders == null) {
+            policyProviders = new ArrayList<PolicyProvider>();
+            for (PolicyProviderFactory factory : providerFactories.getPolicyProviderFactories()) {
+                PolicyProvider provider = factory.createServicePolicyProvider(this);
+                if (provider != null) {
+                    policyProviders.add(provider);
+                }
+            }
+        }
+        return policyProviders;
+    }
+
+    public void setBindingProvider(ServiceBindingProvider provider) {
+        this.bindingProvider = provider;
+    }
+
+    public Contract getContract() {
+        return getService();
+    }
+
+    public CompositeContext getCompositeContext() {
+        return compositeContext;
+    }
+
+    @Override
+    protected void reset() {
+        super.reset();
+        this.xml = null;
+    }
+
+    @Override
+    protected synchronized void resolve() {
+        if (xml != null && component == null) {
+            if (compositeContext == null) {
+                compositeContext = CompositeContext.getCurrentCompositeContext();
+                if (compositeContext != null) {
+                    bind(compositeContext);
+                }
+            } // end if
+            if (serializer != null) {
+                RuntimeEndpointImpl ep = (RuntimeEndpointImpl)serializer.readEndpoint(xml);
+                copyFrom(ep);
+            } else {
+            	// In this case, we assume that we're running on a detached (non Tuscany) thread and
+            	// as a result we need to connect back to the Tuscany environment...
+                ExtensionPointRegistry registry = ExtensionPointRegistryLocator.getExtensionPointRegistry();
+                if( registry != null ) {
+                    this.registry = registry;
+                    UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+                    this.interfaceContractMapper = utilities.getUtility(InterfaceContractMapper.class);
+                    this.serializer = utilities.getUtility(EndpointSerializer.class);
+                    RuntimeEndpointImpl ep = (RuntimeEndpointImpl)serializer.readEndpoint(xml);
+                    // Find the actual Endpoint in the DomainRegistry
+                    ep = findActualEP( ep, registry );
+                    if( ep != null ){
+                        copyFrom( ep );
+                    } // end if
+                } // end if
+            } // end if
+        } // end if
+        super.resolve();
+    } // end method resolve
+
+    /**
+     * Find the actual Endpoint in the DomainRegistry which corresponds to the configuration described
+     * in a deserialized Endpoint 
+     * @param ep The deserialized endpoint
+     * @param registry - the main extension point Registry
+     * @return the corresponding Endpoint from the DomainRegistry, or null if no match can be found
+     */
+    private RuntimeEndpointImpl findActualEP(RuntimeEndpointImpl ep,
+			ExtensionPointRegistry registry) {
+		DomainRegistry domainRegistry = getEndpointRegistry( registry );
+        
+        if( domainRegistry == null ) return null;
+        
+        for( Endpoint endpoint : domainRegistry.findEndpoint(ep.getURI()) ) {
+        	// TODO: For the present, simply return the first matching endpoint
+        	return (RuntimeEndpointImpl) endpoint;
+        } // end for
+        
+		return null;
+	} // end method findActualEP
+    
+    /**
+     * Get the DomainRegistry
+     * @param registry - the ExtensionPoint registry
+     * @return the DomainRegistry - will be null if the DomainRegistry cannot be found
+     */
+    private DomainRegistry getEndpointRegistry( ExtensionPointRegistry registry) {
+        DomainRegistryFactory domainRegistryFactory = ExtensibleDomainRegistryFactory.getInstance(registry);
+        
+        if( domainRegistryFactory == null ) return null;
+        
+        // TODO: For the moment, just use the first (and only!) DomainRegistry...
+        DomainRegistry domainRegistry = (DomainRegistry) domainRegistryFactory.getEndpointRegistries().toArray()[0];
+    	
+    	return domainRegistry;
+    } // end method 
+
+	public InterfaceContract getBindingInterfaceContract() {
+        resolve();
+        if (bindingInterfaceContract != null) {
+            return bindingInterfaceContract;
+        }
+        bindingInterfaceContract = getBindingProvider().getBindingInterfaceContract();
+        if (bindingInterfaceContract == null) {
+            bindingInterfaceContract = getComponentServiceInterfaceContract();
+        }
+        if (bindingInterfaceContract == null) {
+            bindingInterfaceContract = getComponentTypeServiceInterfaceContract();
+        }
+        return bindingInterfaceContract;
+    }
+
+    public InterfaceContract getComponentTypeServiceInterfaceContract() {
+        resolve();
+        if (serviceInterfaceContract != null) {
+            return serviceInterfaceContract;
+        }
+        if (service == null) {
+            return getComponentServiceInterfaceContract();
+        }
+        serviceInterfaceContract = getLeafContract(service).getInterfaceContract();
+        if (serviceInterfaceContract == null) {
+            serviceInterfaceContract = getComponentServiceInterfaceContract();
+        }
+        return serviceInterfaceContract;
+    }
+
+    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
+        this.uri = in.readUTF();
+        this.xml = in.readUTF();
+    }
+
+    public void writeExternal(ObjectOutput out) throws IOException {
+        out.writeUTF(getURI());
+        if (serializer == null && xml != null) {
+            out.writeUTF(xml);
+        } else {
+            if (serializer != null) {
+                out.writeUTF(serializer.write(this));
+            } else {
+                throw new IllegalStateException("No serializer is configured");
+            }
+        }
+    }
+    public InterfaceContract getGeneratedWSDLContract(InterfaceContract interfaceContract) {
+
+        if ( interfaceContract.getNormalizedWSDLContract() == null){
+            if (getComponentServiceInterfaceContract() instanceof JavaInterfaceContract){
+                if (contractBuilder == null){
+                    throw new ServiceRuntimeException("Contract builder not found while calculating WSDL contract for " + this.toString());
+                }
+                contractBuilder.build(interfaceContract, null);
+            }
+        }
+        
+        return interfaceContract.getNormalizedWSDLContract();      
+    }    
+    
+    @Override
+    public RuntimeEndpoint getDelegateEndpoint() {
+        return delegateEndpoint;
+    }
+    
+    @Override
+    public void setDelegateEndpoint(RuntimeEndpoint delegateEndpoint) {
+        this.delegateEndpoint = delegateEndpoint;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeEndpointReferenceImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeEndpointReferenceImpl.java
new file mode 100644
index 0000000000..fe5b47256d
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/assembly/impl/RuntimeEndpointReferenceImpl.java
@@ -0,0 +1,804 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.core.assembly.impl;
+
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.lang.reflect.InvocationTargetException;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Contract;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilder;
+import org.apache.tuscany.sca.assembly.builder.BuilderContext;
+import org.apache.tuscany.sca.assembly.builder.BuilderExtensionPoint;
+import org.apache.tuscany.sca.assembly.impl.EndpointReferenceImpl;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ExtensionPointRegistryLocator;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.core.assembly.RuntimeAssemblyFactory;
+import org.apache.tuscany.sca.core.invocation.AsyncResponseService;
+import org.apache.tuscany.sca.core.invocation.ExtensibleWireProcessor;
+import org.apache.tuscany.sca.core.invocation.NonBlockingInterceptor;
+import org.apache.tuscany.sca.core.invocation.RuntimeInvoker;
+import org.apache.tuscany.sca.core.invocation.impl.InvocationChainImpl;
+import org.apache.tuscany.sca.core.invocation.impl.PhaseManager;
+import org.apache.tuscany.sca.interfacedef.Compatibility;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterfaceContract;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.InterceptorAsync;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.apache.tuscany.sca.provider.BindingProviderFactory;
+import org.apache.tuscany.sca.provider.EndpointReferenceProvider;
+import org.apache.tuscany.sca.provider.ImplementationAsyncProvider;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.provider.PolicyProvider;
+import org.apache.tuscany.sca.provider.PolicyProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
+import org.apache.tuscany.sca.runtime.DomainRegistryFactory;
+import org.apache.tuscany.sca.runtime.EndpointReferenceBinder;
+import org.apache.tuscany.sca.runtime.DomainRegistry;
+import org.apache.tuscany.sca.runtime.EndpointSerializer;
+import org.apache.tuscany.sca.runtime.ExtensibleDomainRegistryFactory;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.apache.tuscany.sca.runtime.RuntimeWireProcessor;
+import org.apache.tuscany.sca.runtime.RuntimeWireProcessorExtensionPoint;
+import org.apache.tuscany.sca.work.WorkScheduler;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Runtime model for Endpoint that supports java serialization
+ */
+public class RuntimeEndpointReferenceImpl extends EndpointReferenceImpl implements RuntimeEndpointReference, Externalizable {
+    private transient CompositeContext compositeContext;
+    private transient RuntimeWireProcessor wireProcessor;
+    private transient InterfaceContractMapper interfaceContractMapper;
+    private transient WorkScheduler workScheduler;
+    private transient PhaseManager phaseManager;
+    private transient MessageFactory messageFactory;
+    private transient RuntimeInvoker invoker;
+    private transient DomainRegistry domainRegistry;
+
+    private transient List<InvocationChain> chains;
+    private transient Map<Operation, InvocationChain> invocationChainMap =
+        new ConcurrentHashMap<Operation, InvocationChain>();
+    private transient InvocationChain bindingInvocationChain;
+
+    private transient EndpointReferenceBinder eprBinder;
+    private transient ReferenceBindingProvider bindingProvider;
+    private transient ProviderFactoryExtensionPoint providerFactories;
+    private transient List<PolicyProvider> policyProviders;
+    private transient EndpointSerializer serializer;
+
+    protected InterfaceContract bindingInterfaceContract;
+    protected InterfaceContract referenceInterfaceContract;
+    
+    //protected InterfaceContract generatedReferenceWSDLInterfaceContract;
+    
+    private String xml;
+
+    private boolean started;
+    
+    private RuntimeEndpointReference delegateEndpointReference;
+    
+    /**
+     * No-arg constructor for Java serilization
+     */
+    public RuntimeEndpointReferenceImpl() {
+        super(null);
+    }
+
+    public RuntimeEndpointReferenceImpl(ExtensionPointRegistry registry) {
+        super(registry);
+    }
+
+    protected void copyFrom(RuntimeEndpointReferenceImpl copy) {
+        this.xml = copy.xml;
+
+        this.component = copy.component;
+        this.reference = copy.reference;
+        this.interfaceContract = copy.interfaceContract;
+        this.referenceInterfaceContract = copy.referenceInterfaceContract;
+        this.callbackEndpoint = copy.callbackEndpoint;
+        this.targetEndpoint = copy.targetEndpoint;
+
+        this.binding = copy.binding;
+        this.bindingInterfaceContract = copy.interfaceContract;
+        this.bindingInvocationChain = copy.bindingInvocationChain;
+
+        this.requiredIntents = copy.requiredIntents;
+        this.policySets = copy.policySets;
+
+        this.uri = copy.uri;
+        this.unresolved = copy.unresolved;
+        this.status = copy.status;
+
+        this.chains = copy.chains;
+        this.invocationChainMap = copy.invocationChainMap;
+        this.bindingProvider = copy.bindingProvider;
+        this.policyProviders = copy.policyProviders;
+
+        if (this.compositeContext == null && copy.compositeContext != null) {
+            bind(copy.compositeContext);
+        }
+    }
+
+    public void bind(CompositeContext compositeContext) {
+        this.compositeContext = compositeContext;
+        bind(compositeContext.getExtensionPointRegistry(), compositeContext.getEndpointRegistry());
+    }
+
+    public void bind(ExtensionPointRegistry registry, DomainRegistry domainRegistry) {
+        if (compositeContext == null) {
+            compositeContext = new CompositeContext(registry, domainRegistry);
+        }
+        this.registry = registry;
+        this.domainRegistry = domainRegistry;
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        this.eprBinder = utilities.getUtility(EndpointReferenceBinder.class);
+        this.interfaceContractMapper = utilities.getUtility(InterfaceContractMapper.class);
+        this.workScheduler = utilities.getUtility(WorkScheduler.class);
+        this.wireProcessor =
+            new ExtensibleWireProcessor(registry.getExtensionPoint(RuntimeWireProcessorExtensionPoint.class));
+
+        this.messageFactory = registry.getExtensionPoint(FactoryExtensionPoint.class).getFactory(MessageFactory.class);
+        this.invoker = new RuntimeInvoker(registry, this);
+
+        this.phaseManager = utilities.getUtility(PhaseManager.class);
+        this.serializer = utilities.getUtility(EndpointSerializer.class);
+        this.providerFactories = registry.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+        
+        this.builders = registry.getExtensionPoint(BuilderExtensionPoint.class);
+        this.contractBuilder = builders.getContractBuilder();
+    }
+
+    public synchronized List<InvocationChain> getInvocationChains() {
+        if (chains == null) {
+            initInvocationChains();
+        }
+        return chains;
+    }
+
+    public synchronized InvocationChain getBindingInvocationChain() {
+        if (bindingInvocationChain == null) {
+            bindingInvocationChain = new InvocationChainImpl(null, null, true, phaseManager, isAsyncInvocation());
+            initReferenceBindingInvocationChains();
+        }
+        return bindingInvocationChain;
+    }
+
+    public InvocationChain getInvocationChain(Operation operation) {
+        InvocationChain cached = invocationChainMap.get(operation);
+        if (cached == null) {
+            for (InvocationChain chain : getInvocationChains()) {
+                Operation op = chain.getSourceOperation();
+                
+                // We used to check compatibility here but this is now validated when the 
+                // chain is created. As the chain operations are the real interface types 
+                // they may be incompatible just because they are described in different 
+                // IDLs
+                if (operation.getName().equals(op.getName())) {
+                    invocationChainMap.put(operation, chain);
+                    return chain;
+                }
+            }
+            invocationChainMap.put(operation, null);
+            return null;
+        } else {
+            return cached;
+        }
+    }
+
+    public Message invoke(Message msg) {
+        return invoker.invoke(msg);
+    }
+
+    public Object invoke(Operation operation, Object[] args) throws InvocationTargetException {
+        return invoker.invoke(operation, args);
+    }
+
+    public Message invoke(Operation operation, Message msg) {
+        return invoker.invoke(operation, msg);
+    }
+    
+    public void invokeAsync(Operation operation, Message msg){
+        msg.setOperation(operation);
+        invoker.invokeAsync(msg);
+    }
+    
+    public void invokeAsync(Message msg){
+        invoker.invokeAsync(msg);
+    }
+    
+    public void invokeAsyncResponse(Message msg){
+    	// If there is a Binding Chain, invoke it first...
+        InvocationChain chain = this.getBindingInvocationChain();
+        if( chain != null ) {
+        	Invoker tailInvoker = chain.getTailInvoker();
+        	if (tailInvoker != null) {
+        		((InvokerAsyncResponse)tailInvoker).invokeAsyncResponse(msg);
+			} // end if
+        } // end if
+        
+        chain = this.getInvocationChain(msg.getOperation());
+        Invoker tailInvoker = chain.getTailInvoker();
+        ((InvokerAsyncResponse)tailInvoker).invokeAsyncResponse(msg);   
+    } // end method invokeAsyncResponse     
+
+    /**
+     * Navigate the component/componentType inheritence chain to find the leaf contract
+     * @param contract
+     * @return
+     */
+    private Contract getLeafContract(Contract contract) {
+        Contract prev = null;
+        Contract current = contract;
+        while (current != null) {
+            prev = current;
+            if (current instanceof ComponentReference) {
+                current = ((ComponentReference)current).getReference();
+            } else if (current instanceof CompositeReference) {
+                current = ((CompositeReference)current).getPromotedReferences().get(0);
+            } else if (current instanceof ComponentService) {
+                current = ((ComponentService)current).getService();
+            } else if (current instanceof CompositeService) {
+                current = ((CompositeService)current).getPromotedService();
+            } else {
+                break;
+            }
+            if (current == null) {
+                return prev;
+            }
+        }
+        return current;
+    }
+
+    /**
+     * Initialize the invocation chains
+     */
+    private void initInvocationChains() {
+        InterfaceContract sourceContract = getComponentTypeReferenceInterfaceContract();
+        // TODO - EPR why is this looking at the component types. The endpoint reference should have the right interface contract by this time
+        //InterfaceContract sourceContract = getLeafInterfaceContract(endpointReference);
+
+        // It's the reference wire
+        resolveEndpointReference();
+
+        InterfaceContract targetContract = getBindingInterfaceContract();
+        // TODO - EPR why is this looking at the component types. The endpoint should have the right interface contract by this time
+        //InterfaceContract targetContract = getLeafInterfaceContract(endpoint);
+
+        if (sourceContract == null && targetContract != null) {
+            // TODO: until the web component introspection is brought up
+            try {
+                sourceContract = (InterfaceContract)targetContract.clone();
+            } catch (CloneNotSupportedException e) {
+                throw new IllegalStateException(e);
+            }
+        }
+        
+        validateReferenceInterfaceCompatibility();
+
+        List<InvocationChain> chainList = new ArrayList<InvocationChain>();
+        if(sourceContract != null && targetContract != null) {
+            RuntimeComponentReference reference = (RuntimeComponentReference)getReference();
+            for (Operation operation : sourceContract.getInterface().getOperations()) {
+                Operation targetOperation = interfaceContractMapper.map(targetContract.getInterface(), operation);
+                if (targetOperation == null) {
+                    throw new ServiceRuntimeException("No matching operation for " + operation.getName()
+                        + " is found in reference "
+                        + getComponent().getURI()
+                        + "#"
+                        + reference.getName());
+                }
+                InvocationChain chain = new InvocationChainImpl(operation, targetOperation, true, phaseManager, isAsyncInvocation());
+                if (operation.isNonBlocking()) {
+                    addNonBlockingInterceptor(chain);
+                }
+                chainList.add(chain);
+                addReferenceBindingInterceptor(chain, operation);
+            }            
+        }
+
+        // Set the chains until it's fully populated. If we initialize too early, any exception could
+        // leave this endpoint reference in a wrong state with an empty chain.
+        chains = chainList;
+        wireProcessor.process(this);
+        
+        if (isAsyncInvocation()){
+            // Fix up all of the operation chain response paths to point back to the implementation provided
+            // async response handler
+            //ImplementationProvider implementationProvider = ((RuntimeComponent)getComponent()).getImplementationProvider();
+        	RuntimeComponentReference theReference = (RuntimeComponentReference)this.getReference();
+        	RuntimeComponent theComponent = theReference.getComponent();
+            ImplementationProvider implementationProvider = theComponent.getImplementationProvider();
+            if (implementationProvider instanceof ImplementationAsyncProvider){
+                for (InvocationChain chain : getInvocationChains()){
+                    InvokerAsyncResponse asyncResponseInvoker = ((ImplementationAsyncProvider)implementationProvider).createAsyncResponseInvoker(chain.getSourceOperation());
+                    if (chain.getHeadInvoker() instanceof InterceptorAsync){
+                        ((InterceptorAsync)chain.getHeadInvoker()).setPrevious(asyncResponseInvoker);
+                    } else {
+                        //TODO - throw error once the old async code is removed
+                    } // end if
+                } // end for
+            } // end if
+        } // end if
+    } // end method initInvocationChains
+    
+    /**
+     * Check that endpoint reference has compatible interface at the component and binding ends. 
+     * The user can specify the interfaces at both ends so there is a danger that they won't be compatible.
+     * There is checking in the activator but of course endpoint references may not have a binding assigned
+     * until final resolution. 
+     */
+    public void validateReferenceInterfaceCompatibility() {
+
+        InterfaceContract referenceContract = getComponentReferenceInterfaceContract();
+        InterfaceContract bindingContract =  getBindingInterfaceContract();
+        
+       if ((referenceContract != null) &&
+           (bindingContract != null)){
+                      
+           boolean bindingHasCallback = bindingContract.getCallbackInterface() != null;
+
+           try {
+               // Use the normalized contract if the interface types are different or if 
+               // a normalized contract has been previously generate, for example, by virtue
+               // of finding a JAXWS annotation on a Java class that references a WSDL file
+               if (referenceContract.getClass() != bindingContract.getClass() ||
+                   referenceContract.getNormalizedWSDLContract() != null ||
+                   bindingContract.getNormalizedWSDLContract() != null) {
+                   interfaceContractMapper.checkCompatibility(getGeneratedWSDLContract(referenceContract), 
+                                                              getGeneratedWSDLContract(bindingContract), 
+                                                              Compatibility.SUBSET, 
+                                                              !bindingHasCallback, // ignore callbacks if binding doesn't have one 
+                                                              false);
+               } else {
+                   interfaceContractMapper.checkCompatibility(referenceContract, 
+                                                              bindingContract, 
+                                                              Compatibility.SUBSET, 
+                                                              !bindingHasCallback, // ignore callbacks if binding doesn't have one 
+                                                              false);                   
+               }  
+           } catch (Exception ex){
+               throw new ServiceRuntimeException("Component " +
+                                                 this.getComponent().getName() +
+                                                 " Reference " +
+                                                 getReference().getName() +
+                                                 " interface is incompatible with the interface of the reference binding " + 
+                                                 getBinding().getName() + 
+                                                 " - " + 
+                                                 ex.getMessage() +
+                                                 " - [" + this.toString() + "]");
+           }
+        }  
+    }     
+
+    /**
+     * This code used to be in the activator but has moved here as
+     * the endpoint reference may not now be resolved until the wire
+     * is first used
+     */
+    private void resolveEndpointReference() {
+        resolve();
+
+        eprBinder.bindRunTime(domainRegistry, this);
+
+        // start the binding provider
+        final ReferenceBindingProvider bindingProvider = getBindingProvider();
+
+        if (bindingProvider != null) {
+            // Allow bindings to add shutdown hooks. Requires RuntimePermission shutdownHooks in policy.
+            AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                public Object run() {
+                    bindingProvider.start();
+                    return null;
+                }
+            });
+        }
+        for (PolicyProvider policyProvider : getPolicyProviders()) {
+            policyProvider.start();
+        }
+
+        started = true;
+        // InterfaceContract bindingContract = getBindingInterfaceContract();
+        // endpoint.setInterfaceContract(bindingContract);
+    }
+
+    private void initReferenceBindingInvocationChains() {
+
+        // add the binding interceptors to the reference binding wire
+        ReferenceBindingProvider provider = getBindingProvider();
+        if ((provider != null) && (provider instanceof EndpointReferenceProvider)) {
+            ((EndpointReferenceProvider)provider).configure();
+        }
+
+        // add the policy interceptors to the service binding wire
+        // find out which policies are active
+        for (PolicyProvider p : getPolicyProviders()) {
+           Interceptor interceptor = p.createBindingInterceptor();
+            if (interceptor != null) {
+                bindingInvocationChain.addInterceptor(interceptor);
+            }
+        }
+    }
+
+    public void rebuild() {
+        // TODO - can we use the idea of setTarget to rebuild the wire?
+        //        used at the moment by binding.sca when it resets the
+        //        source interface contract for local wires
+        this.chains = null;
+
+        if (getStatus() == EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED){
+            setStatus(EndpointReference.Status.NOT_CONFIGURED);
+        }
+
+        // TODO - cheating here as I fixed the RuntimeComponentService code
+        //        to call this when it resets the interface contract
+        //endpointReference.setInterfaceContract(epr.getInterfaceContract());
+    }
+
+    /**
+     * Add the interceptor for a reference binding
+     *
+     * @param reference
+     * @param binding
+     * @param chain
+     * @param operation
+     */
+    private void addReferenceBindingInterceptor(InvocationChain chain, Operation operation) {
+        ReferenceBindingProvider provider = getBindingProvider();
+        if (provider != null) {
+            Invoker invoker = provider.createInvoker(operation);
+            if (invoker != null) {
+                chain.addInvoker(invoker);
+            }
+        }
+        List<PolicyProvider> pps = getPolicyProviders();
+        if (pps != null) {
+            for (PolicyProvider p : pps) {
+                Interceptor interceptor = p.createInterceptor(operation);
+                if (interceptor != null) {
+                    chain.addInterceptor(interceptor);
+                }
+            }
+        }
+    }
+
+    /**
+     * Add a non-blocking interceptor if the reference binding needs it
+     *
+     * @param reference
+     * @param binding
+     * @param chain
+     */
+    private void addNonBlockingInterceptor(InvocationChain chain) {
+        ReferenceBindingProvider provider = getBindingProvider();
+        if (provider != null) {
+            boolean supportsOneWayInvocation = provider.supportsOneWayInvocation();
+            if (!supportsOneWayInvocation) {
+                chain.addInterceptor(Phase.REFERENCE, new NonBlockingInterceptor(workScheduler));
+            }
+        }
+    }
+
+    /**
+     * @see java.lang.Object#clone()
+     */
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        RuntimeEndpointReferenceImpl copy = (RuntimeEndpointReferenceImpl)super.clone();
+        copy.invoker = new RuntimeInvoker(registry, copy);
+        return copy;
+    }
+
+    public boolean isOutOfDate() {
+        resolve();
+        return eprBinder.isOutOfDate(domainRegistry, this);
+    }
+
+    public synchronized ReferenceBindingProvider getBindingProvider() {
+        resolve();
+        // For the case that binding.sca is implemented by another binding
+        if (binding == null) {
+            return null;
+        }
+        if (bindingProvider == null) {
+            BindingProviderFactory factory =
+                (BindingProviderFactory)providerFactories.getProviderFactory(getBinding().getClass());
+            if (factory == null) {
+                throw new ServiceRuntimeException("No provider factory is registered for binding " + getBinding()
+                    .getType());
+            }
+            this.bindingProvider = factory.createReferenceBindingProvider(this);
+        }
+        return bindingProvider;
+    }
+
+    public void setBindingProvider(ReferenceBindingProvider bindingProvider) {
+        this.bindingProvider = bindingProvider;
+    }
+
+    public synchronized List<PolicyProvider> getPolicyProviders() {
+        resolve();
+        if (policyProviders == null) {
+            policyProviders = new ArrayList<PolicyProvider>();
+            for (PolicyProviderFactory factory : providerFactories.getPolicyProviderFactories()) {
+                PolicyProvider provider = factory.createReferencePolicyProvider(this);
+                if (provider != null) {
+                    policyProviders.add(provider);
+                }
+            }
+        }
+        return policyProviders;
+    }
+
+    public void unbind() {
+        bindingInvocationChain = null;
+        chains = null;
+        bindingProvider = null;
+        policyProviders = null;
+        invocationChainMap.clear();
+    }
+
+    public Contract getContract() {
+        return getReference();
+    }
+
+    public CompositeContext getCompositeContext() {
+        return compositeContext;
+    }
+
+    public InterfaceContract getBindingInterfaceContract() {
+        resolve();
+        if (bindingInterfaceContract != null) {
+            return bindingInterfaceContract;
+        }
+        ReferenceBindingProvider provider = getBindingProvider();
+        if (provider != null) {
+            bindingInterfaceContract = provider.getBindingInterfaceContract();
+        }
+        if (bindingInterfaceContract == null) {
+            bindingInterfaceContract = getComponentReferenceInterfaceContract();
+        }
+        if (bindingInterfaceContract == null) {
+            bindingInterfaceContract = getComponentTypeReferenceInterfaceContract();
+        }
+        return bindingInterfaceContract;
+    }
+
+    public InterfaceContract getComponentTypeReferenceInterfaceContract() {
+        resolve();
+        if (referenceInterfaceContract != null) {
+            return referenceInterfaceContract;
+        }
+        if (reference == null) {
+            return getComponentReferenceInterfaceContract();
+        }
+        referenceInterfaceContract = getLeafContract(reference).getInterfaceContract();
+        if (referenceInterfaceContract == null) {
+            referenceInterfaceContract = getComponentReferenceInterfaceContract();
+        }
+        return referenceInterfaceContract;
+    }
+
+    @Override
+    protected synchronized void resolve() {
+        if (xml != null && component == null) {
+            if (compositeContext == null) {
+                compositeContext = CompositeContext.getCurrentCompositeContext();
+                if (compositeContext != null) {
+                    bind(compositeContext);
+                }
+            }
+            if (serializer != null) {
+                RuntimeEndpointReferenceImpl epr = (RuntimeEndpointReferenceImpl)serializer.readEndpointReference(xml);
+                copyFrom(epr);
+            } else {
+            	// In this case, we assume that we're running on a detached (non Tuscany) thread and
+            	// as a result we need to connect back to the Tuscany environment...
+                ExtensionPointRegistry registry = ExtensionPointRegistryLocator.getExtensionPointRegistry();
+                if( registry != null ) {
+                    this.registry = registry;
+                    UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+                    this.serializer = utilities.getUtility(EndpointSerializer.class);
+                    RuntimeEndpointReferenceImpl epr = (RuntimeEndpointReferenceImpl)serializer.readEndpointReference(xml);
+                    // Find the actual Endpoint in the DomainRegistry
+                    epr = findActualEPR( epr, registry );
+                    if( epr != null ){
+                        copyFrom( epr );
+                    } // end if
+                } // end if
+            } // end if            
+        }
+        super.resolve();
+    } // end method resolve
+    
+    /**
+     * Find the actual EndpointReference in the DomainRegistry which corresponds to the configuration described
+     * in a deserialized EndpointReference 
+     * @param ep The deserialized endpointReference
+     * @param registry - the main extension point Registry
+     * @return the corresponding EndpointReference from the DomainRegistry, or null if no match can be found
+     */
+    private RuntimeEndpointReferenceImpl findActualEPR(RuntimeEndpointReferenceImpl epr,
+			ExtensionPointRegistry registry) {
+		// Get the DomainRegistry
+        DomainRegistryFactory domainRegistryFactory = ExtensibleDomainRegistryFactory.getInstance(registry);
+        if( domainRegistryFactory == null ) return null;
+        
+        // TODO: For the moment, just use the first (and only!) DomainRegistry...
+        DomainRegistry domainRegistry = (DomainRegistry) domainRegistryFactory.getEndpointRegistries().toArray()[0];
+        if( domainRegistry == null ) return null;
+        
+        for( EndpointReference epReference : domainRegistry.getEndpointReferences() ) {
+        	// TODO: For the present, simply return the first matching endpointReference
+        	if( epReference.getURI().equals(epr.getURI()) ) {
+        	    return (RuntimeEndpointReferenceImpl) epReference;
+        	} // end if
+        } // end for
+        
+		return null;
+	} // end method findActualEPR
+
+    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
+        this.uri = in.readUTF();
+        this.xml = in.readUTF();
+    }
+
+    public void writeExternal(ObjectOutput out) throws IOException {
+        out.writeUTF(getURI());
+        if (serializer == null && xml != null) {
+            out.writeUTF(xml);
+        } else {
+            if (serializer != null) {
+                out.writeUTF(serializer.write(this));
+            } else {
+                throw new IllegalStateException("No serializer is configured");
+            }
+        }
+    }
+
+    public boolean isStarted() {
+        return started;
+    }
+    
+    public InterfaceContract getGeneratedWSDLContract(InterfaceContract interfaceContract) {
+
+        if ( interfaceContract.getNormalizedWSDLContract() == null){
+            if (getComponentReferenceInterfaceContract() instanceof JavaInterfaceContract){
+                if (contractBuilder == null){
+                    throw new ServiceRuntimeException("Contract builder not found while calculating WSDL contract for " + this.toString());
+                }
+                contractBuilder.build(interfaceContract, null);
+            }
+        }
+        
+        return interfaceContract.getNormalizedWSDLContract();      
+    }   
+    
+    public void createAsyncCallbackEndpoint(){
+        CompositeContext compositeContext = getCompositeContext();
+        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        RuntimeAssemblyFactory assemblyFactory = (RuntimeAssemblyFactory)modelFactories.getFactory(AssemblyFactory.class);
+        
+        RuntimeEndpoint endpoint = (RuntimeEndpoint)assemblyFactory.createEndpoint();
+        endpoint.bind(compositeContext);
+        endpoint.setComponent(getComponent());
+
+        // Create pseudo-service
+        ComponentService service = assemblyFactory.createComponentService();
+        JavaInterfaceFactory javaInterfaceFactory =
+            (JavaInterfaceFactory)modelFactories.getFactory(JavaInterfaceFactory.class);
+        JavaInterfaceContract interfaceContract = javaInterfaceFactory.createJavaInterfaceContract();
+        try {
+            interfaceContract.setInterface(javaInterfaceFactory.createJavaInterface(AsyncResponseService.class));
+        } catch (InvalidInterfaceException e1) {
+            // Nothing to do here - will not happen
+        } // end try
+        
+        service.setInterfaceContract(interfaceContract);
+        
+        String serviceName = getReference().getName() + "_asyncCallback";
+        service.setName(serviceName);
+        service.getEndpoints().add(endpoint);
+        service.setForCallback(true);
+        endpoint.setService(service);
+        
+        // Set pseudo-service onto the component
+        getComponent().getServices().add(service);
+        
+        // if the reference has a WSDL contract reset the response endpoint to be WSDL also
+        InterfaceContract referenceInterfaceContract = getComponentTypeReferenceInterfaceContract();
+        if (referenceInterfaceContract instanceof WSDLInterfaceContract){
+            WSDLInterfaceContract wsdlInterfaceContract = (WSDLInterfaceContract)endpoint.getGeneratedWSDLContract(interfaceContract);
+            service.setInterfaceContract(wsdlInterfaceContract);
+        }         
+
+        // Create a binding
+        // Mike had to go via the XML but I don't remember why
+        Binding binding = null;
+        try {
+            binding = (Binding)getBinding().clone();
+        } catch (Exception ex){
+            // 
+        }
+        String callbackURI = "/" + component.getName() + "/" + service.getName();
+        binding.setURI(callbackURI);
+        
+        BuilderExtensionPoint builders = registry.getExtensionPoint(BuilderExtensionPoint.class);
+        BindingBuilder builder = builders.getBindingBuilder(binding.getType());
+        if (builder != null) {
+            org.apache.tuscany.sca.assembly.builder.BuilderContext builderContext = new BuilderContext(registry);
+            builder.build(component, service, binding, builderContext, true);
+        } // end if
+        
+        endpoint.setBinding(binding);
+
+        // Need to establish policies here (binding has some...)
+        endpoint.getRequiredIntents().addAll(getRequiredIntents());
+        endpoint.getPolicySets().addAll(getPolicySets());
+        String epURI = getComponent().getName() + "#service-binding(" + serviceName + "/" + serviceName + ")";
+        endpoint.setURI(epURI);
+        endpoint.setUnresolved(false);
+        
+        setCallbackEndpoint(endpoint);
+    }
+    
+    @Override
+    public RuntimeEndpointReference getDelegateEndpointReference() {
+        return delegateEndpointReference;
+    }
+    
+    @Override
+    public void setDelegateEndpointReference(RuntimeEndpointReference delegateEndpointReference) {
+        this.delegateEndpointReference = delegateEndpointReference;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/DefaultComponentContextFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/DefaultComponentContextFactory.java
new file mode 100644
index 0000000000..d2528784fd
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/DefaultComponentContextFactory.java
@@ -0,0 +1,72 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.context;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.context.ComponentContextFactory;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.context.ContextFactoryExtensionPoint;
+import org.apache.tuscany.sca.context.PropertyValueFactory;
+import org.apache.tuscany.sca.context.RequestContextFactory;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.core.context.impl.ComponentContextImpl;
+import org.apache.tuscany.sca.core.invocation.ExtensibleProxyFactory;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.runtime.CompositeActivator;
+import org.apache.tuscany.sca.runtime.EndpointReferenceBinder;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.oasisopen.sca.ComponentContext;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class DefaultComponentContextFactory implements ComponentContextFactory {
+    private final ExtensionPointRegistry registry;
+    private AssemblyFactory assemblyFactory;
+    private JavaInterfaceFactory javaInterfaceFactory;
+    private CompositeActivator compositeActivator;
+    private RequestContextFactory requestContextFactory;
+    private PropertyValueFactory propertyFactory;
+    private EndpointReferenceBinder eprBinder;
+    private ExtensibleProxyFactory proxyFactory;
+
+    public DefaultComponentContextFactory(ExtensionPointRegistry registry) {
+        this.registry = registry;
+        FactoryExtensionPoint factories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        this.assemblyFactory = factories.getFactory(AssemblyFactory.class);
+        this.javaInterfaceFactory = factories.getFactory(JavaInterfaceFactory.class);
+        this.compositeActivator = utilities.getUtility(CompositeActivator.class);
+        this.requestContextFactory =
+            registry.getExtensionPoint(ContextFactoryExtensionPoint.class).getFactory(RequestContextFactory.class);
+        this.propertyFactory = factories.getFactory(PropertyValueFactory.class);
+        this.eprBinder = utilities.getUtility(EndpointReferenceBinder.class);
+        this.proxyFactory = ExtensibleProxyFactory.getInstance(registry);
+    }
+
+    public ComponentContext createComponentContext(CompositeContext compositeContext, RuntimeComponent component) {
+        return new ComponentContextImpl(registry, assemblyFactory, javaInterfaceFactory, compositeActivator,
+                                        requestContextFactory, propertyFactory, eprBinder, proxyFactory,
+                                        compositeContext, component);
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/DefaultRequestContextFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/DefaultRequestContextFactory.java
new file mode 100644
index 0000000000..ace4dc48e1
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/DefaultRequestContextFactory.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.context;
+
+import org.apache.tuscany.sca.context.RequestContextFactory;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.context.impl.RequestContextImpl;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.oasisopen.sca.RequestContext;
+
+/**
+ * Default implementation of RequestContextFactory
+ */
+public class DefaultRequestContextFactory implements RequestContextFactory {
+
+    public DefaultRequestContextFactory(ExtensionPointRegistry registry) {
+    }
+    
+    public RequestContext createRequestContext(RuntimeComponent component) {
+        return new RequestContextImpl(component);
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/ServiceReferenceExt.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/ServiceReferenceExt.java
new file mode 100644
index 0000000000..5206f0945e
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/ServiceReferenceExt.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.context;
+
+import java.io.Externalizable;
+
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * Extended ServiceReference
+ */
+public interface ServiceReferenceExt<B> extends ServiceReference<B>, Externalizable {
+    
+    /**
+     * Return the EndpointReference that sits behind this service reference
+     * @return endpoint reference
+     */
+    RuntimeEndpointReference getEndpointReference();
+    
+    B getProxy();
+    void setProxy(B proxy);
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/CallbackServiceReferenceImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/CallbackServiceReferenceImpl.java
new file mode 100644
index 0000000000..6f5b0be0e7
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/CallbackServiceReferenceImpl.java
@@ -0,0 +1,138 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.context.impl;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.context.ThreadMessageContext;
+import org.apache.tuscany.sca.core.invocation.Constants;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+public class CallbackServiceReferenceImpl<B> extends ServiceReferenceImpl<B> {
+    private RuntimeEndpointReference callbackEPR;
+    private List<? extends EndpointReference> callbackEPRs;
+    private Endpoint resolvedEndpoint;
+    // Holds the ID of the Message that caused the creation of this CallbackServiceReference
+    private String msgID;
+
+    /** 
+     * Gets the message ID associated with this callback reference
+     * @return the message ID
+     */
+    public String getMsgID() {
+		return msgID;
+	}
+
+	/*
+     * Public constructor for Externalizable serialization/deserialization
+     */
+    public CallbackServiceReferenceImpl() {
+        super();
+    }
+
+    public CallbackServiceReferenceImpl(Class<B> interfaze,
+                                        List<? extends EndpointReference> callbackEPRs) {
+        super(interfaze, null, getCompositeContext(callbackEPRs));
+        this.callbackEPRs = callbackEPRs;
+        init();
+    }
+    
+    private static CompositeContext getCompositeContext(List<? extends EndpointReference> callbackEPRs) {
+        if(!callbackEPRs.isEmpty()) {
+            RuntimeEndpointReference epr = (RuntimeEndpointReference) callbackEPRs.get(0);
+            return epr.getCompositeContext();
+        } 
+        return null;
+    }
+
+    public void init() {
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        callbackEPR = selectCallbackEPR(msgContext);
+        if (callbackEPR == null) {
+            throw new ServiceRuntimeException("No callback binding found for " + msgContext.getTo().toString());
+        }
+        resolvedEndpoint = msgContext.getFrom().getCallbackEndpoint();
+        
+        // Capture the Message ID from the message which caused the creation of this CallBackServiceReference
+        this.msgID = (String) msgContext.getHeaders().get(Constants.MESSAGE_ID);
+    }
+
+    @Override
+    protected B createProxy() throws Exception {
+        return proxyFactory.createCallbackProxy(this);
+    }
+
+    public RuntimeEndpointReference getCallbackEPR() {
+        if (resolvedEndpoint == null) {
+            return null;
+        } else {
+            return cloneAndBind(callbackEPR);
+        }
+    }
+
+    public Endpoint getResolvedEndpoint() {
+        return resolvedEndpoint;
+    }
+
+    private RuntimeEndpointReference selectCallbackEPR(Message msgContext) {
+        // look for callback binding with same name as service binding
+        Endpoint to = msgContext.getTo();
+        if (to == null) {
+            //FIXME: need better exception
+            throw new ServiceRuntimeException("Destination for forward call is not available");
+        }
+        for (EndpointReference epr : callbackEPRs) {
+            if (epr.getBinding().getName().equals(to.getBinding().getName())) {
+                return (RuntimeEndpointReference) epr;
+            }
+        }
+
+        // if no match, look for callback binding with same type as service binding
+        for (EndpointReference epr : callbackEPRs) {
+            if (epr.getBinding().getType().equals(to.getBinding().getType())) {
+                return (RuntimeEndpointReference) epr;
+            }
+        }
+
+        // no suitable callback wire was found
+        return null;
+    }
+
+    private RuntimeEndpointReference cloneAndBind(RuntimeEndpointReference endpointReference) {
+        if (resolvedEndpoint != null) {
+
+            try {
+                RuntimeEndpointReference epr = (RuntimeEndpointReference)endpointReference.clone();
+                epr.setTargetEndpoint(resolvedEndpoint);
+                return epr;
+            } catch (CloneNotSupportedException e) {
+                // will not happen
+                throw new ServiceRuntimeException(e);
+            }
+        } else {
+            return null;
+        }
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/ComponentContextImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/ComponentContextImpl.java
new file mode 100644
index 0000000000..fd14c8c03e
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/ComponentContextImpl.java
@@ -0,0 +1,550 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.context.impl;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+import org.apache.tuscany.sca.assembly.SCABinding;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.context.PropertyValueFactory;
+import org.apache.tuscany.sca.context.RequestContextFactory;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.invocation.ProxyFactory;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.runtime.CompositeActivator;
+import org.apache.tuscany.sca.runtime.EndpointReferenceBinder;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentContext;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.RequestContext;
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Implementation of ComponentContext that delegates to a ComponentContextProvider.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ComponentContextImpl implements RuntimeComponentContext {
+    private final RuntimeComponent component;
+
+    private final CompositeContext compositeContext;
+    private final CompositeActivator compositeActivator;
+    private final RequestContextFactory requestContextFactory;
+    private final ProxyFactory proxyFactory;
+    private final AssemblyFactory assemblyFactory;
+    private final JavaInterfaceFactory javaInterfaceFactory;
+    private final PropertyValueFactory propertyFactory;
+    private final EndpointReferenceBinder eprBinder;
+    private final ExtensionPointRegistry registry;
+
+    public ComponentContextImpl(ExtensionPointRegistry registry,
+                                AssemblyFactory assemblyFactory,
+                                JavaInterfaceFactory javaInterfaceFactory,
+                                CompositeActivator compositeActivator,
+                                RequestContextFactory requestContextFactory,
+                                PropertyValueFactory propertyFactory,
+                                EndpointReferenceBinder eprBinder,
+                                ProxyFactory proxyFactory,
+                                CompositeContext compositeContext,
+                                RuntimeComponent component) {
+        this.registry = registry;
+        this.assemblyFactory = assemblyFactory;
+        this.javaInterfaceFactory = javaInterfaceFactory;
+        this.compositeActivator = compositeActivator;
+        this.requestContextFactory = requestContextFactory;
+        this.propertyFactory = propertyFactory;
+        this.eprBinder = eprBinder;
+        this.proxyFactory = proxyFactory;
+        this.compositeContext = compositeContext;
+        this.component = component;
+    }
+
+    public String getURI() {
+        return component.getURI();
+    }
+
+    public <B> ServiceReference<B> cast(B target) throws IllegalArgumentException {
+        return proxyFactory.cast(target);
+    }
+
+    public <B> B getService(Class<B> businessInterface, String referenceName) throws IllegalArgumentException {
+        B service = null;
+
+        ServiceReference<B> serviceRef = getServiceReference(businessInterface, referenceName);
+        if (serviceRef != null) {
+            service = serviceRef.getService();
+        }
+
+        return service;
+    }
+
+    public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String referenceName)
+        throws IllegalArgumentException {
+
+        for (ComponentReference ref : component.getReferences()) {
+            if (referenceName.equals(ref.getName())) {
+                Multiplicity multiplicity = ref.getMultiplicity();
+                if (multiplicity == Multiplicity.ZERO_N || multiplicity == Multiplicity.ONE_N) {
+                    throw new IllegalArgumentException("Reference " + referenceName
+                        + " has multiplicity "
+                        + multiplicity);
+                }
+                if (ref.getEndpointReferences().size() < 1) {
+                    return null;
+                }
+                ServiceReference<B> sr =
+                    getServiceReference(businessInterface, (RuntimeEndpointReference)getEndpointReference(ref));
+                if (sr == null) {
+                    throw new IllegalArgumentException("Reference " + referenceName + " is null");
+                }
+                return sr;
+            }
+        }
+        throw new IllegalArgumentException("[JCA80011] Reference not found: " + referenceName);
+
+    }
+
+    /**
+     * Select an endpoint reference from the component reference
+     * @param ref
+     * @return
+     */
+    private EndpointReference getEndpointReference(ComponentReference ref) {
+        List<EndpointReference> eprs = ref.getEndpointReferences();
+        if (eprs.size() == 1) {
+            // Return 1st one
+            return eprs.get(0);
+        } else {
+            for (EndpointReference epr : eprs) {
+                // Try to see if there is an EPR using binding.sca
+                if (epr.getBinding().getType().equals(SCABinding.TYPE)) {
+                    return epr;
+                }
+            }
+            return eprs.get(0);
+        }
+    }
+
+    /**
+     * Select an endpoint reference from the component reference
+     * @param ref
+     * @return
+     */
+    private Endpoint getEndpoint(ComponentService service, String bindingName) {
+        if (bindingName == null) {
+            // The default binding name is the name of the promoted service
+            bindingName = getPromotedService(service).getName();
+        }
+        Endpoint returnEp = null;
+        List<Endpoint> eps = service.getEndpoints();
+        for (Endpoint ep : eps) {
+            Binding binding = ep.getBinding();
+            if (bindingName.equals(binding.getName()) || binding.getName() == null) {
+                returnEp = ep;
+                break;
+            }
+        }
+        //TUSCANY-3543
+        if (returnEp == null) {
+            returnEp = eps.get(0);
+        }
+
+        return returnEp;
+    }
+
+    private ComponentService getPromotedService(ComponentService componentService) {
+        Service service = componentService.getService();
+        if (service instanceof CompositeService) {
+            return getPromotedService(((CompositeService)service).getPromotedService());
+        } else {
+            return componentService;
+        }
+
+    }
+
+    /**
+     * Gets the value for the specified property with the specified type.
+     * 
+     * @param type The type of the property value we are getting
+     * @param propertyName The name of the property we are getting
+     * @param B The class of the property value we are getting
+     * 
+     * @throws ServiceRuntimeException If a Property for the specified propertyName
+     *         is not found 
+     *         
+     * @see #setPropertyValueFactory(PropertyValueFactory)         
+     */
+    public <B> B getProperty(Class<B> type, String propertyName) {
+        for (ComponentProperty p : component.getProperties()) {
+            if (propertyName.equals(p.getName())) {
+                return propertyFactory.createPropertyValue(p, type);
+            }
+        }
+        throw new IllegalArgumentException("Property not found: " + propertyName);
+    }
+
+    /**
+     * @param component
+     */
+    public static ComponentService getSingleService(Component component) {
+        ComponentService targetService;
+        List<ComponentService> services = component.getServices();
+        List<ComponentService> regularServices = new ArrayList<ComponentService>();
+        for (ComponentService service : services) {
+            if (service.isForCallback()) {
+                continue;
+            }
+            String name = service.getName();
+            if (!name.startsWith("$") || name.startsWith("$dynamic$")) {
+                regularServices.add(service);
+            }
+        }
+        if (regularServices.size() == 0) {
+            throw new ServiceRuntimeException("No service is declared on component " + component.getURI());
+        }
+        if (regularServices.size() != 1) {
+            throw new ServiceRuntimeException("More than one service is declared on component " + component.getURI()
+                + ". Service name is required to get the service.");
+        }
+        targetService = regularServices.get(0);
+        return targetService;
+    }
+
+    public <B> ServiceReference<B> createSelfReference(Class<B> businessInterface) {
+        ComponentService service = getSingleService(component);
+        try {
+            return createSelfReference(businessInterface, service);
+        } catch (IllegalArgumentException iae) {
+            throw iae;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e.getMessage(), e);
+        }
+    }
+
+    public <B> ServiceReference<B> createSelfReference(Class<B> businessInterface, String serviceName) {
+        if (serviceName == null) {
+            return createSelfReference(businessInterface);
+        }
+        try {
+            String bindingName = null;
+            int index = serviceName.indexOf('/');
+            if (index != -1) {
+                bindingName = serviceName.substring(index + 1);
+                serviceName = serviceName.substring(0, index);
+            }
+            for (ComponentService service : component.getServices()) {
+                if (serviceName.equals(service.getName())) {
+                    Endpoint endpoint = getEndpoint(service, bindingName);
+                    if (endpoint == null) {
+                        break;
+                    }
+                    return getServiceReference(businessInterface, (RuntimeEndpoint)endpoint);
+                }
+            }
+            throw new IllegalArgumentException("Service not found: " + serviceName);
+        } catch (IllegalArgumentException iae) {
+            throw iae;
+        } catch (ServiceRuntimeException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e.getMessage(), e);
+        }
+    }
+
+    /**
+     * @param <B>
+     * @param businessInterface
+     * @param service
+     * @return
+     */
+    public <B> ServiceReference<B> createSelfReference(Class<B> businessInterface, ComponentService service) {
+        try {
+            RuntimeEndpointReference ref =
+                (RuntimeEndpointReference)createEndpointReference(component, service, null, businessInterface);
+            ref.setComponent(component);
+            return getServiceReference(businessInterface, ref);
+        } catch (IllegalArgumentException iae) {
+            throw iae;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+
+    public RequestContext getRequestContext() {
+        if (requestContextFactory != null) {
+            return requestContextFactory.createRequestContext(component);
+        } else {
+            return new RequestContextImpl(component);
+        }
+    }
+
+    /**
+     * @param businessInterface
+     * @param reference
+     * @return
+     * @throws CloneNotSupportedException
+     * @throws InvalidInterfaceException
+     */
+    public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface,
+                                                       RuntimeEndpointReference endpointReference) {
+        ServiceReference<B> result = null;
+
+        try {
+            InterfaceContract interfaceContract = endpointReference.getComponentTypeReferenceInterfaceContract();
+            if (businessInterface == null) {
+                businessInterface = (Class<B>)((JavaInterface)interfaceContract.getInterface()).getJavaClass();
+            }
+            RuntimeComponentReference ref = (RuntimeComponentReference)endpointReference.getReference();
+            InterfaceContract refInterfaceContract = getInterfaceContract(interfaceContract, businessInterface);
+            if (refInterfaceContract != null) {
+                if (refInterfaceContract != interfaceContract) {
+                    ref = (RuntimeComponentReference)ref.clone();
+                    if (interfaceContract != null) {
+                        ref.setInterfaceContract(interfaceContract);
+                    } else {
+                        ref.setInterfaceContract(refInterfaceContract);
+                    }
+                }
+
+                ref.setComponent(component);
+                result =
+                    new ServiceReferenceImpl<B>(businessInterface, endpointReference, component.getComponentContext()
+                        .getCompositeContext());
+            }
+        } catch (IllegalArgumentException iae) {
+            throw iae;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+
+        return result;
+    }
+
+    public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, RuntimeEndpoint endpoint) {
+        try {
+            if (businessInterface == null) {
+                InterfaceContract contract = endpoint.getComponentTypeServiceInterfaceContract();
+                businessInterface = (Class<B>)((JavaInterface)contract.getInterface()).getJavaClass();
+            }
+            RuntimeEndpointReference ref =
+                (RuntimeEndpointReference)createEndpointReference(endpoint, businessInterface);
+            ref.setComponent(component);
+            return new ServiceReferenceImpl<B>(businessInterface, ref, compositeContext);
+        } catch (IllegalArgumentException iae) {
+            throw iae;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+
+    /**
+     * Create a self-reference for a component service
+     * @param component
+     * @param service
+     * @throws CloneNotSupportedException 
+     * @throws InvalidInterfaceException 
+     */
+    private EndpointReference createEndpointReference(Component component,
+                                                      ComponentService service,
+                                                      String bindingName,
+                                                      Class<?> businessInterface) throws CloneNotSupportedException,
+        InvalidInterfaceException {
+
+        Endpoint endpoint = getEndpoint(service, bindingName);
+        return createEndpointReference(endpoint, businessInterface);
+    }
+
+    private EndpointReference createEndpointReference(Endpoint endpoint, Class<?> businessInterface)
+        throws CloneNotSupportedException, InvalidInterfaceException {
+        Component component = endpoint.getComponent();
+        ComponentService service = endpoint.getService();
+        ComponentReference componentReference = assemblyFactory.createComponentReference();
+        componentReference.setName("$self$." + service.getName());
+
+        componentReference.setCallback(service.getCallback());
+        componentReference.getTargets().add(service);
+        componentReference.getPolicySets().addAll(service.getPolicySets());
+        componentReference.getRequiredIntents().addAll(service.getRequiredIntents());
+        componentReference.getBindings().add(endpoint.getBinding());
+
+        // For the self-reference, allows pass by reference
+        componentReference.setAllowsPassByReference(true);
+
+        InterfaceContract interfaceContract = service.getInterfaceContract();
+        Service componentTypeService = service.getService();
+        if (componentTypeService != null && componentTypeService.getInterfaceContract() != null) {
+            interfaceContract = componentTypeService.getInterfaceContract();
+        }
+        interfaceContract = getInterfaceContract(interfaceContract, businessInterface);
+        componentReference.setInterfaceContract(interfaceContract);
+        componentReference.setMultiplicity(Multiplicity.ONE_ONE);
+        // component.getReferences().add(componentReference);
+
+        // create endpoint reference
+        EndpointReference endpointReference = assemblyFactory.createEndpointReference();
+        endpointReference.setComponent(component);
+        endpointReference.setReference(componentReference);
+        endpointReference.setBinding(endpoint.getBinding());
+        endpointReference.setUnresolved(false);
+        endpointReference.setStatus(EndpointReference.Status.WIRED_TARGET_FOUND_READY_FOR_MATCHING);
+
+        endpointReference.setTargetEndpoint(endpoint);
+
+        componentReference.getEndpointReferences().add(endpointReference);
+        ((RuntimeComponentReference)componentReference).setComponent((RuntimeComponent)component);
+        ((RuntimeEndpointReference)endpointReference).bind(compositeContext);
+
+        return endpointReference;
+    }
+
+    /**
+     * @param interfaceContract
+     * @param businessInterface
+     * @return
+     * @throws CloneNotSupportedException
+     * @throws InvalidInterfaceException
+     */
+    private InterfaceContract getInterfaceContract(InterfaceContract interfaceContract, Class<?> businessInterface)
+        throws CloneNotSupportedException, InvalidInterfaceException {
+        if (businessInterface == null) {
+            return interfaceContract;
+        }
+        if (interfaceContract == null) {
+            JavaInterfaceContract ic = javaInterfaceFactory.createJavaInterfaceContract();
+            ic.setInterface(javaInterfaceFactory.createJavaInterface(businessInterface));
+            return ic;
+        }
+        boolean compatible = false;
+        if (interfaceContract != null && interfaceContract.getInterface() != null) {
+            Interface interfaze = interfaceContract.getInterface();
+            if (interfaze instanceof JavaInterface) {
+                Class<?> cls = ((JavaInterface)interfaze).getJavaClass();
+                if (businessInterface.isAssignableFrom(cls)) {
+                    compatible = true;
+                }
+                if (!compatible) {
+                    InterfaceContract biContract = javaInterfaceFactory.createJavaInterfaceContract();
+                    JavaInterface callInterface = javaInterfaceFactory.createJavaInterface(businessInterface);
+                    biContract.setInterface(callInterface);
+                    if (callInterface.getCallbackClass() != null) {
+                        biContract.setCallbackInterface(javaInterfaceFactory.createJavaInterface(callInterface
+                            .getCallbackClass()));
+                    }
+                    InterfaceContractMapper ifcm = registry.getExtensionPoint(InterfaceContractMapper.class);
+                    compatible = ifcm.isCompatibleSubset(biContract, interfaceContract);
+		    // If the business interface class is not assignable from the service interface class but
+		    // they are compatible, we need to return an InterfaceContract with the business interface
+		    // class to store on the reference side. 
+		    if ( compatible ) {
+			return biContract;
+		    }
+                }
+
+            }
+        }
+
+        if (!compatible) {
+            // JCA-9011
+            throw new IllegalArgumentException("Business interface " + businessInterface.getName()
+                + " is not compatible with "
+                + interfaceContract.getInterface());
+        }
+
+        return interfaceContract;
+    }
+
+    /* ******************** Contribution for issue TUSCANY-2281 ******************** */
+
+    /**
+     * @see ComponentContext#getServices(Class<B>, String)
+     */
+    public <B> Collection<B> getServices(Class<B> businessInterface, String referenceName) {
+        ArrayList<B> services = new ArrayList<B>();
+        Collection<ServiceReference<B>> serviceRefs = getServiceReferences(businessInterface, referenceName);
+        for (ServiceReference<B> serviceRef : serviceRefs) {
+            services.add(serviceRef.getService());
+        }
+        return services;
+    }
+
+    /**
+     * @see ComponentContext#getServiceReferences(Class<B>, String)
+     */
+    public <B> Collection<ServiceReference<B>> getServiceReferences(Class<B> businessInterface, String referenceName) {
+        try {
+            for (ComponentReference ref : component.getReferences()) {
+                if (referenceName.equals(ref.getName())) {
+                    if (ref.getMultiplicity() == Multiplicity.ONE_ONE)
+                        throw new IllegalArgumentException("Reference " + referenceName
+                            + " is not a valid argument for getServiceReferences because it has a multiplicity of 1..1");
+                    if (ref.getMultiplicity() == Multiplicity.ZERO_ONE)
+                        throw new IllegalArgumentException("Reference " + referenceName
+                            + " is not a valid argument for getServiceReferences because it has a multiplicity of 0..1");
+
+                    ArrayList<ServiceReference<B>> serviceRefs = new ArrayList<ServiceReference<B>>();
+                    for (EndpointReference endpointReference : ref.getEndpointReferences()) {
+                        RuntimeEndpointReference epr = (RuntimeEndpointReference)endpointReference;
+                        serviceRefs.add(getServiceReference(businessInterface, epr));
+                    }
+                    return serviceRefs;
+                }
+            }
+            throw new IllegalArgumentException("Reference not found: " + referenceName);
+        } catch (IllegalArgumentException iae) {
+            throw iae;
+        } catch (ServiceRuntimeException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e.getMessage(), e);
+        }
+    }
+
+    /* ******************** Contribution for issue TUSCANY-2281 ******************** */
+
+    public CompositeContext getCompositeContext() {
+        return compositeContext;
+    }
+
+    public ExtensionPointRegistry getExtensionPointRegistry() {
+        return getCompositeContext().getExtensionPointRegistry();
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/RequestContextImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/RequestContextImpl.java
new file mode 100644
index 0000000000..5d0527682e
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/RequestContextImpl.java
@@ -0,0 +1,123 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.context.impl;
+
+import java.util.List;
+
+import javax.security.auth.Subject;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.context.ThreadMessageContext;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.oasisopen.sca.RequestContext;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class RequestContextImpl implements RequestContext {
+
+    public RequestContextImpl(RuntimeComponent component) {
+    }
+
+    public Subject getSecuritySubject() {
+        
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        
+        if (msgContext == null){
+            // message in thread context could be null if the user has 
+            // spun up a new thread inside their component implementation 
+            return null;
+        }
+        
+        Subject subject = null;
+        for (Object header : msgContext.getHeaders().values()){
+            if (header instanceof Subject){
+                subject  = (Subject)header;
+                break;
+            }
+        }
+        return subject;
+    }
+
+    public String getServiceName() {
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        
+        if (msgContext != null){
+            return msgContext.getTo().getService().getName();
+        } else {
+            // message in thread context could be null if the user has 
+            // spun up a new thread inside their component implementation 
+            return null;
+        }
+    }
+
+    public <B> ServiceReference<B> getServiceReference() {
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        if (msgContext == null){
+            // message in thread context could be null if the user has 
+            // spun up a new thread inside their component implementation 
+            return null;
+        }
+        // FIXME: [rfeng] Is this the service reference matching the caller side?
+        RuntimeEndpoint to = (RuntimeEndpoint) msgContext.getTo();
+        RuntimeComponent component = (RuntimeComponent) to.getComponent();
+        
+        ServiceReference<B> callableReference = component.getComponentContext().getServiceReference(null, to);
+        
+        return callableReference;
+    }
+
+    public <CB> CB getCallback() {
+        ServiceReference<CB> cb = getCallbackReference(); 
+        if (cb == null) {
+            return null;
+        }
+        return cb.getService();
+    }
+
+    @SuppressWarnings("unchecked")
+    public <CB> ServiceReference<CB> getCallbackReference() {
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        if (msgContext == null){
+            // message in thread context could be null if the user has 
+            // spun up a new thread inside their component implementation 
+            return null;
+        }
+        
+        Endpoint to = msgContext.getTo();
+        RuntimeComponentService service = (RuntimeComponentService) to.getService();
+        RuntimeComponentReference callbackReference = (RuntimeComponentReference)service.getCallbackReference();
+        if (callbackReference == null) {
+            return null;
+        }
+        JavaInterface javaInterface = (JavaInterface) callbackReference.getInterfaceContract().getInterface();
+        Class<CB> javaClass = (Class<CB>)javaInterface.getJavaClass();
+        List<EndpointReference> wires = callbackReference.getEndpointReferences();
+        ServiceReferenceImpl ref = new CallbackServiceReferenceImpl(javaClass, wires);
+
+        return ref;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/ServiceReferenceImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/ServiceReferenceImpl.java
new file mode 100644
index 0000000000..0cda879011
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/ServiceReferenceImpl.java
@@ -0,0 +1,424 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.context.impl;
+
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.io.StringWriter;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilder;
+import org.apache.tuscany.sca.assembly.builder.BuilderContext;
+import org.apache.tuscany.sca.assembly.builder.BuilderExtensionPoint;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.assembly.RuntimeAssemblyFactory;
+import org.apache.tuscany.sca.core.context.ServiceReferenceExt;
+import org.apache.tuscany.sca.core.factory.ObjectCreationException;
+import org.apache.tuscany.sca.core.invocation.ExtensibleProxyFactory;
+import org.apache.tuscany.sca.core.invocation.ProxyFactory;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Default implementation of a ServiceReference.
+ *
+ * @version $Rev$ $Date$
+ * @param <B> the type of the business interface
+ */
+public class ServiceReferenceImpl<B> implements ServiceReferenceExt<B> {
+    private static final long serialVersionUID = 6763709434194361540L;
+
+    protected transient ProxyFactory proxyFactory;
+    protected transient Class<B> businessInterface;
+    protected transient B proxy;
+
+    protected Object callbackID; // The callbackID should be serializable
+
+    protected transient RuntimeEndpointReference endpointReference;
+
+//    protected String scdl;
+//
+//    private transient XMLStreamReader xmlReader;
+
+    protected transient CompositeContext compositeContext;
+    protected ExtensionPointRegistry registry;
+    protected FactoryExtensionPoint modelFactories;
+    protected RuntimeAssemblyFactory assemblyFactory;
+    protected StAXArtifactProcessorExtensionPoint staxProcessors;
+    protected StAXArtifactProcessor<EndpointReference> staxProcessor;
+    protected XMLInputFactory xmlInputFactory;
+    protected XMLOutputFactory xmlOutputFactory;
+    protected BuilderExtensionPoint builders;
+
+    /*
+     * Public constructor for Externalizable serialization/deserialization
+     */
+    public ServiceReferenceImpl() {
+        super();
+    }
+
+    public ServiceReferenceImpl(Class<B> businessInterface,
+                                Invocable endpointReference,
+                                CompositeContext compositeContext) {
+        this.businessInterface = businessInterface;
+        this.endpointReference = (RuntimeEndpointReference) endpointReference;
+        if (compositeContext == null) {
+            compositeContext = endpointReference.getCompositeContext();
+        }
+        bind(compositeContext);
+    }
+    
+    public ServiceReferenceImpl(Class<B> businessInterface,
+                                Invocable endpointReference) {
+        this(businessInterface, endpointReference, null);
+    }
+
+    protected void bind(CompositeContext context) {
+        this.compositeContext = context;
+        this.registry = compositeContext.getExtensionPointRegistry();
+        this.modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        this.assemblyFactory = (RuntimeAssemblyFactory)modelFactories.getFactory(AssemblyFactory.class);
+        this.xmlInputFactory = modelFactories.getFactory(XMLInputFactory.class);
+        this.xmlOutputFactory = modelFactories.getFactory(XMLOutputFactory.class);
+        this.staxProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+        this.staxProcessor = staxProcessors.getProcessor(EndpointReference.class);
+        this.builders = registry.getExtensionPoint(BuilderExtensionPoint.class);
+        this.proxyFactory = ExtensibleProxyFactory.getInstance(registry);
+    }
+
+    public RuntimeEndpointReference getEndpointReference() {
+        return endpointReference;
+    }
+
+    public B getProxy() throws ObjectCreationException {
+        try {
+            if (proxy == null) {
+                proxy = createProxy();
+            }
+            return proxy;
+        } catch (Exception e) {
+            throw new ObjectCreationException(e);
+        }
+    }
+
+    public void setProxy(B proxy) {
+        this.proxy = proxy;
+    }
+
+    protected B createProxy() throws Exception {
+        return proxyFactory.createProxy(this);
+    }
+
+    public B getService() {
+        try {
+            resolve();
+            return getProxy();
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+
+    public Class<B> getBusinessInterface() {
+        try {
+            resolve();
+            return businessInterface;
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+
+    /**
+     * Follow a service promotion chain down to the inner most (non composite)
+     * component service.
+     *
+     * @param topCompositeService
+     * @return
+     */
+    private ComponentService getPromotedComponentService(CompositeService compositeService) {
+        ComponentService componentService = compositeService.getPromotedService();
+        if (componentService != null) {
+            Service service = componentService.getService();
+            if (componentService.getName() != null && service instanceof CompositeService) {
+
+                // Continue to follow the service promotion chain
+                return getPromotedComponentService((CompositeService)service);
+
+            } else {
+
+                // Found a non-composite service
+                return componentService;
+            }
+        } else {
+
+            // No promoted service
+            return null;
+        }
+    }
+
+    // ============ WRITE AND READ THE REFERENCE TO EXTERNAL XML ========================
+
+    /**
+     * write the reference to a stream
+     * 
+     * @see java.io.Externalizable#writeExternal(java.io.ObjectOutput)
+     */
+    public void writeExternal(ObjectOutput out) throws IOException {
+        out.writeObject(endpointReference);
+        /*
+        try {
+            String xml = null;
+            if (scdl == null) {
+                xml = toXMLString();
+            } else {
+                xml = scdl;
+            }
+
+            if (xml == null) {
+                out.writeBoolean(false);
+            } else {
+                out.writeBoolean(true);
+                out.writeUTF(xml);
+            }
+        } catch (Exception e) {
+            // e.printStackTrace();
+            throw new IOException(e.toString());
+        }
+        */
+    }
+
+    /**
+     * write the endpoint reference into an xml string
+     */
+    public String toXMLString() throws IOException, XMLStreamException, ContributionWriteException {
+        StringWriter writer = new StringWriter();
+        XMLStreamWriter streamWriter = xmlOutputFactory.createXMLStreamWriter(writer);
+        staxProcessor.write(endpointReference, streamWriter, new ProcessorContext(registry));
+        return writer.toString();
+    }
+
+    /**
+     * Read the reference from a stream
+     * 
+     * @see java.io.Externalizable#readExternal(java.io.ObjectInput)
+     */
+    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
+        this.endpointReference = (RuntimeEndpointReference) in.readObject();
+        // Force resolve
+        endpointReference.getComponent();
+        bind(endpointReference.getCompositeContext());
+
+        RuntimeComponentReference reference = (RuntimeComponentReference)endpointReference.getReference();
+        reference.setComponent((RuntimeComponent)endpointReference.getComponent());
+
+        Interface i = reference.getInterfaceContract().getInterface();
+        if (i instanceof JavaInterface) {
+            JavaInterface javaInterface = (JavaInterface)i;
+            if (javaInterface.isUnresolved()) {
+                // Allow privileged access to get ClassLoader. Requires RuntimePermission in
+                // security policy.
+                ClassLoader classLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
+                    public ClassLoader run() {
+                        return Thread.currentThread().getContextClassLoader();
+                    }
+                });
+
+                javaInterface.setJavaClass(classLoader.loadClass(javaInterface.getName()));
+                JavaInterfaceFactory javaInterfaceFactory = getJavaInterfaceFactory(compositeContext);
+
+                try {
+                    javaInterfaceFactory.createJavaInterface(javaInterface, javaInterface.getJavaClass());
+                } catch (InvalidInterfaceException e) {
+                    throw new ServiceRuntimeException(e);
+                }
+                //FIXME: If the interface needs XSDs to be loaded (e.g., for static SDO),
+                // this needs to be done here.  We usually search for XSDs in the current
+                // contribution at resolve time.  Is it possible to locate the current
+                // contribution at runtime?
+            }
+            this.businessInterface = (Class<B>)javaInterface.getJavaClass();
+        }
+
+        Binding binding = endpointReference.getBinding();
+        if (binding != null) {
+            BindingBuilder bindingBuilder = builders.getBindingBuilder(binding.getType());
+            if (bindingBuilder != null) {
+                org.apache.tuscany.sca.assembly.builder.BuilderContext context = new BuilderContext(registry);
+                bindingBuilder.build(endpointReference.getComponent(), reference, endpointReference.getBinding(), context, false);
+            }
+        }
+
+        this.proxyFactory = getProxyFactory(this.compositeContext);
+
+        /*
+        endpointReference.bind(CompositeContext.getCurrentCompositeContext());
+        endpointReference.rebuild();
+        */
+        /*
+        final boolean hasSCDL = in.readBoolean();
+        if (hasSCDL) {
+            this.scdl = in.readUTF();
+        } else {
+            this.scdl = null;
+        }
+        */
+    }
+
+    /**
+     * Read xml string into the endpoint reference
+     */
+    /*
+    public void fromXMLString() throws IOException, XMLStreamException, ContributionReadException {
+
+        XMLStreamReader streamReader = xmlReader;
+
+        if (scdl != null) {
+            Reader reader = new StringReader(scdl);
+
+            if (xmlInputFactory == null) {
+                // this is a reference being read from a external stream
+                // so set up enough of the reference in order to resolved the
+                // xml being read
+                bind(CompositeContext.getCurrentCompositeContext());
+            }
+
+            streamReader = xmlInputFactory.createXMLStreamReader(reader);
+        }
+
+        endpointReference = (RuntimeEndpointReference) staxProcessor.read(streamReader, new ProcessorContext(registry));
+
+        // ok to GC
+        xmlReader = null;
+        scdl = null;
+    }
+    */
+
+    /**
+     * @throws IOException
+     */
+    private synchronized void resolve() throws Exception {
+        /*
+        if ((scdl != null || xmlReader != null) && endpointReference == null) {
+            fromXMLString();
+
+            compositeContext.bindComponent((RuntimeComponent) endpointReference.getComponent());
+
+            RuntimeComponentReference reference = (RuntimeComponentReference)endpointReference.getReference();
+            reference.setComponent((RuntimeComponent)endpointReference.getComponent());
+
+            ReferenceParameters parameters = null;
+            for (Object ext : reference.getExtensions()) {
+                if (ext instanceof ReferenceParameters) {
+                    parameters = (ReferenceParameters)ext;
+                    break;
+                }
+            }
+
+            if (parameters != null) {
+                this.callbackID = parameters.getCallbackID();
+            }
+
+            Interface i = reference.getInterfaceContract().getInterface();
+            if (i instanceof JavaInterface) {
+                JavaInterface javaInterface = (JavaInterface)i;
+                if (javaInterface.isUnresolved()) {
+                    // Allow privileged access to get ClassLoader. Requires RuntimePermission in
+                    // security policy.
+                    ClassLoader classLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
+                        public ClassLoader run() {
+                            return Thread.currentThread().getContextClassLoader();
+                        }
+                    });
+
+                    javaInterface.setJavaClass(classLoader.loadClass(javaInterface.getName()));
+                    JavaInterfaceFactory javaInterfaceFactory = getJavaInterfaceFactory(compositeContext);
+
+                    javaInterfaceFactory.createJavaInterface(javaInterface, javaInterface.getJavaClass());
+                    //FIXME: If the interface needs XSDs to be loaded (e.g., for static SDO),
+                    // this needs to be done here.  We usually search for XSDs in the current
+                    // contribution at resolve time.  Is it possible to locate the current
+                    // contribution at runtime?
+                }
+                this.businessInterface = (Class<B>)javaInterface.getJavaClass();
+            }
+
+            Binding binding = endpointReference.getBinding();
+            if (binding != null) {
+                BindingBuilder bindingBuilder = builders.getBindingBuilder(binding.getType());
+                if (bindingBuilder != null) {
+                    BuilderContext context = new BuilderContext(registry);
+                    bindingBuilder.build(endpointReference.getComponent(), reference, endpointReference.getBinding(), context);
+                }
+            }
+
+            this.proxyFactory = getProxyFactory(this.compositeContext);
+        } else if (compositeContext == null) {
+            this.compositeContext = CompositeContext.getCurrentCompositeContext();
+            if (this.compositeContext != null) {
+                this.proxyFactory = getProxyFactory(this.compositeContext);
+            }
+        }
+        */
+    }
+
+    private JavaInterfaceFactory getJavaInterfaceFactory(CompositeContext compositeContext) {
+        ExtensionPointRegistry extensionPointRegistry = compositeContext.getExtensionPointRegistry();
+        FactoryExtensionPoint factories = extensionPointRegistry.getExtensionPoint(FactoryExtensionPoint.class);
+        JavaInterfaceFactory javaInterfaceFactory = factories.getFactory(JavaInterfaceFactory.class);
+        return javaInterfaceFactory;
+    }
+
+    private ProxyFactory getProxyFactory(CompositeContext compositeContext) {
+        ExtensionPointRegistry extensionPointRegistry = compositeContext.getExtensionPointRegistry();
+        return ExtensibleProxyFactory.getInstance(extensionPointRegistry);
+    }
+
+    // ==================================================================================
+
+    /*
+    public XMLStreamReader getXMLReader() {
+        return xmlReader;
+    }
+    */
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/InstanceWrapper.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/InstanceWrapper.java
new file mode 100644
index 0000000000..4b563b0079
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/InstanceWrapper.java
@@ -0,0 +1,49 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.factory;
+
+import org.apache.tuscany.sca.core.scope.TargetDestructionException;
+import org.apache.tuscany.sca.core.scope.TargetInitializationException;
+
+
+/**
+ * Provides lifecycle management for an implementation instance associated with
+ * a component for use by the component's associated {@link org.apache.tuscany.sca.core.scope.ScopeContainer}
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public interface InstanceWrapper<T> {
+
+    /**
+     * @return
+     */
+    T getInstance();
+
+    /**
+     * @throws TargetInitializationException
+     */
+    void start() throws TargetInitializationException;
+
+    /**
+     * @throws TargetDestructionException
+     */
+    void stop() throws TargetDestructionException;
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/ObjectCreationException.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/ObjectCreationException.java
new file mode 100644
index 0000000000..820faf6259
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/ObjectCreationException.java
@@ -0,0 +1,48 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.factory;
+
+
+/**
+ * Denotes an error creating a new object instance
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class ObjectCreationException extends RuntimeException {
+    private static final long serialVersionUID = -6423113430265944499L;
+
+    public ObjectCreationException() {
+        super();
+    }
+
+    public ObjectCreationException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ObjectCreationException(String message) {
+        super(message);
+    }
+
+    public ObjectCreationException(Throwable cause) {
+        super(cause);
+    }
+
+}
+
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/ObjectFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/ObjectFactory.java
new file mode 100644
index 0000000000..db10b6cff2
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/factory/ObjectFactory.java
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.factory;
+
+/**
+ * Implementations create new instances of a particular type
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public interface ObjectFactory<T> {
+
+    /**
+     * Return a instance of the type that this factory creates.
+     *
+     * @return a instance from this factory
+     */
+    T getInstance() throws ObjectCreationException;
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncFaultWrapper.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncFaultWrapper.java
new file mode 100644
index 0000000000..3d98de9e21
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncFaultWrapper.java
@@ -0,0 +1,102 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+
+/**
+ * A class which is used to wrap an Exception of any type thrown by an asynchronous service operation and
+ * which is returned through a separate one-way message sent asynchronously from the server to the client.
+ *
+ */
+public class AsyncFaultWrapper {
+	
+	private String faultClassName = null;
+	private String faultMessage = null;
+	private AsyncFaultWrapper containedFault = null;
+	
+
+	public AsyncFaultWrapper() {
+		super();
+	}
+	
+	/**
+	 * Constructor which creates an AsyncFaultWrapper which wraps the supplied Throwable
+	 * @param e - a Throwable which is wrapped by this AsyncFaultWrapper
+	 */
+	public AsyncFaultWrapper( Throwable e ) {
+		super();
+		storeFault( e );
+	}
+	
+	/**
+	 * Stores a given Throwable in this AsyncFaultWrapper
+	 * If the supplied Throwable itself contains an embedded Throwable ("cause"), this is recursively
+	 * wrapped by a nested AsyncFaultWrapper
+	 * @param e - the Throwable
+	 */
+	public void storeFault( Throwable e ) {
+		setFaultClassName( e.getClass().getCanonicalName() );
+		setFaultMessage( e.getMessage() );
+		Throwable cause = e.getCause();
+		if( cause != null ) setContainedFault( new AsyncFaultWrapper( cause ) );
+	}
+	
+	/**
+	 * Retrieves the Throwable wrapped by this AsyncFaultWrapper
+	 * 
+	 * Note: When this method is invoked, the method attempts to instantiate an instance of the wrapped Throwable.
+	 * It does this using the Thread Context Class Loader (TCCL) - the caller *MUST* ensure that the TCCL has access
+	 * to the class of the wrapped Throwable and also to the classes of any nested Throwables.  If this is not done,
+	 * a ClassNotFound exception is thrown
+	 * 
+	 * @return - the Throwable wrapped by this AsyncFaultWrapper - the Throwable will contain any nested Throwable(s)
+	 * in its cause property
+	 * @throws ClassNotFound exception, if the class of the wrapped Throwable is not accessible from the TCCL
+	 */
+	public Throwable retrieveFault( ) {
+		try {
+			ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+			Class<?> faultClass = tccl.loadClass(faultClassName);
+			Class<Throwable> xclass = (Class<Throwable>) faultClass; 
+			if( containedFault != null ) {
+				// If there is a nested fault, retrieve this recursively
+				Constructor cons = xclass.getConstructor(String.class, Throwable.class);
+				return (Throwable) cons.newInstance(faultMessage, getContainedFault().retrieveFault());
+			} else {
+				Constructor cons = xclass.getConstructor(String.class);
+				return (Throwable) cons.newInstance(faultMessage);
+			} // end if
+		} catch (Exception e) {
+			return e;
+		} // end try
+	} // end method retrieveFault
+	
+	public void setFaultClassName( String name ) { this.faultClassName = name; }
+	public String getFaultClassName() { return this.faultClassName; }
+	
+	public String getFaultMessage() { return faultMessage; }
+	public void setFaultMessage(String faultMessage) { this.faultMessage = faultMessage; }
+	
+	public AsyncFaultWrapper getContainedFault() { return containedFault; }
+	public void setContainedFault(AsyncFaultWrapper containedFault) { this.containedFault = containedFault; }
+
+} // end class AsyncFaultWrapper
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseException.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseException.java
new file mode 100644
index 0000000000..df90c3286d
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseException.java
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+/**
+ * An exception which is used to signal that a service has been invoked asynchronously
+ * and that the result will be sent separately 
+ *
+ */
+public class AsyncResponseException extends RuntimeException {
+
+	private static final long serialVersionUID = 457954562860541631L;
+
+	public AsyncResponseException() {
+		super();
+	}
+
+	public AsyncResponseException(String arg0, Throwable arg1) {
+		super(arg0, arg1);
+	}
+
+	public AsyncResponseException(String arg0) {
+		super(arg0);
+	}
+
+	public AsyncResponseException(Throwable arg0) {
+		super(arg0);
+	}
+
+} // end class AsyncResponseException
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseHandler.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseHandler.java
new file mode 100644
index 0000000000..306a141433
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseHandler.java
@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+import org.oasisopen.sca.annotation.OneWay;
+import org.oasisopen.sca.annotation.Remotable;
+
+/**
+ * An interface which describes a general response pattern for the asynchronous invocation of a service
+ *
+ * @param <V> - the type of the non-fault response
+ */
+public interface AsyncResponseHandler<V> extends AsyncResponseService<V> {
+	
+	/**
+	 * Async process completed with a wrapped Fault.  Must only be invoked once
+	 * <inherited>
+	 * @param e - the wrapper containing the Fault to send
+	 * @throws IllegalStateException if either the setResponse method or the setFault method have been called previously
+	 */
+	@OneWay
+	public void setWrappedFault(AsyncFaultWrapper w);
+	
+	/**
+	 * Async process completed with a Fault.  Must only be invoked once.
+	 * @param e - the Fault to send
+	 * @throws IllegalStateException if either the setResponse method or the setFault method have been called previously
+	 */
+	@OneWay
+	public void setFault( Throwable e );
+	
+	/**
+	 * Async process completed with a response message.  Must only be invoked once
+	 * <inherited>
+	 * @throws IllegalStateException if either the setResponse method or the setFault method have been called previously
+	 * @param res - the response message, which is of type V
+	 */
+	@OneWay
+	public void setResponse(V res);
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java
new file mode 100644
index 0000000000..1ebc9c633a
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java
@@ -0,0 +1,351 @@
+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ * 

+ *   http://www.apache.org/licenses/LICENSE-2.0

+ * 

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.    

+ */

+

+package org.apache.tuscany.sca.core.invocation;

+

+import java.io.IOException;

+import java.io.ObjectInputStream;

+import java.io.Serializable;

+import java.util.List;

+import java.util.Map;

+

+import org.apache.tuscany.sca.assembly.Endpoint;

+import org.apache.tuscany.sca.assembly.EndpointReference;

+import org.apache.tuscany.sca.context.CompositeContext;

+import org.apache.tuscany.sca.core.ExtensionPointRegistry;

+import org.apache.tuscany.sca.core.ExtensionPointRegistryLocator;

+import org.apache.tuscany.sca.core.FactoryExtensionPoint;

+import org.apache.tuscany.sca.interfacedef.Operation;

+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;

+import org.apache.tuscany.sca.invocation.Message;

+import org.apache.tuscany.sca.invocation.MessageFactory;

+import org.apache.tuscany.sca.provider.EndpointAsyncProvider;

+import org.apache.tuscany.sca.runtime.DomainRegistryFactory;

+import org.apache.tuscany.sca.runtime.DomainRegistry;

+import org.apache.tuscany.sca.runtime.ExtensibleDomainRegistryFactory;

+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;

+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;

+

+/**

+ * A class that wraps the mechanics for sending async responses

+ * and hides the decision about whether the response will be processed

+ * natively or non-natively

+ * 

+ * This class is generic, based on the type of targetAddress information required by

+ * the Binding that creates it

+ */

+public class AsyncResponseInvoker<T> implements InvokerAsyncResponse, Serializable {

+    

+    /**

+	 * 

+	 */

+	private static final long serialVersionUID = -7992598227671386588L;

+	

+	private transient RuntimeEndpoint requestEndpoint;

+    private transient RuntimeEndpointReference responseEndpointReference; 

+    private T responseTargetAddress;

+    private String relatesToMsgID;

+    private String operationName;

+    private transient MessageFactory messageFactory;

+    private String bindingType = "";

+    private boolean isNativeAsync;

+    

+    private String endpointURI;

+    private String endpointReferenceURI;

+    private String domainURI;

+

+	private transient DomainRegistry domainRegistry;

+	private transient ExtensionPointRegistry registry;

+    

+    public AsyncResponseInvoker(RuntimeEndpoint requestEndpoint,

+			RuntimeEndpointReference responseEndpointReference,

+			T responseTargetAddress, String relatesToMsgID, 

+			String operationName, MessageFactory messageFactory) {

+		super();

+		this.requestEndpoint = requestEndpoint;

+		this.responseEndpointReference = responseEndpointReference;

+		this.responseTargetAddress = responseTargetAddress;

+		this.relatesToMsgID = relatesToMsgID;

+		this.operationName = operationName;

+		this.messageFactory = messageFactory;

+		

+		CompositeContext context = null;

+		if(requestEndpoint != null ) {

+			endpointURI = requestEndpoint.getURI();

+			context = requestEndpoint.getCompositeContext(); 

+		} // end if

+		if(responseEndpointReference != null ) {

+			endpointReferenceURI = responseEndpointReference.getURI();

+			context = responseEndpointReference.getCompositeContext();

+		}

+		

+		if( context != null ) {

+			domainURI = context.getDomainURI();

+			registry = context.getExtensionPointRegistry();

+		} // end if

+		

+        if ((requestEndpoint.getBindingProvider() instanceof EndpointAsyncProvider) &&

+                (((EndpointAsyncProvider)requestEndpoint.getBindingProvider()).supportsNativeAsync())){

+        	isNativeAsync = true;

+        } else {

+        	isNativeAsync = false;

+        } // end if

+	} // end constructor

+

+    /** 

+     * If you have a Tuscany message you can call this

+     */

+    public void invokeAsyncResponse(Message responseMessage) {

+    	responseMessage.getHeaders().put(Constants.ASYNC_RESPONSE_INVOKER, this);

+    	responseMessage.getHeaders().put(Constants.RELATES_TO, relatesToMsgID);

+    	

+        if (isNativeAsync){

+            // process the response as a native async response

+            requestEndpoint.invokeAsyncResponse(responseMessage);

+        } else {

+            // process the response as a non-native async response

+            responseEndpointReference.invoke(responseMessage);

+        }

+    } // end method invokeAsyncReponse(Message)

+    

+    public T getResponseTargetAddress() {

+		return responseTargetAddress;

+	}

+

+	public void setResponseTargetAddress(T responseTargetAddress) {

+		this.responseTargetAddress = responseTargetAddress;

+	}

+

+	public String getRelatesToMsgID() {

+		return relatesToMsgID;

+	}

+

+	public void setRelatesToMsgID(String relatesToMsgID) {

+		this.relatesToMsgID = relatesToMsgID;

+	}

+

+	/**

+     * Invokes the async response where the parameter is Java bean(s) 

+     * - this method creates a Tuscany message

+     * 

+     * @param args the response data

+     * @param headers - any header 

+     */

+    public void invokeAsyncResponse(Object args, Map<String, Object> headers) {

+        

+        Message msg = messageFactory.createMessage();

+

+        msg.setOperation(getOperation( args ));

+        

+        // If this is not native async, then any Throwable is being passed as a parameter and

+        // requires wrapping

+        if( !isNativeAsync && args instanceof Throwable ) {

+        	args = new AsyncFaultWrapper( (Throwable) args ); 

+        } // end if

+        

+        // If this is not native async, then the message must contain an array of args since

+        // this is what is expected when invoking an EPR for the async response...

+        if( !isNativeAsync ) {

+        	Object[] objs = new Object[1];

+        	objs[0] = args;

+        	args = objs;

+        } // end if

+

+        msg.setTo(requestEndpoint);

+        msg.setFrom(responseEndpointReference);

+        

+        if( headers != null ) {

+        	msg.getHeaders().putAll(headers);

+        }

+        

+        if( args instanceof Throwable ) {

+        	msg.setFaultBody(args);

+        } else {

+        	msg.setBody(args);

+        } // end if

+        

+        invokeAsyncResponse(msg);

+        

+    } // end method invokeAsyncResponse(Object)

+

+	private Operation getOperation( Object args ) {

+		if( isNativeAsync ) {

+			List<Operation> ops = requestEndpoint.getService().getInterfaceContract().getInterface().getOperations();

+			for (Operation op : ops) {

+				if( operationName.equals(op.getName()) ) return op;

+			} // end for

+			return null;

+		} else {

+			operationName = "setResponse";

+			if( args instanceof Throwable ) { operationName = "setWrappedFault"; }

+			List<Operation> ops = responseEndpointReference.getReference().getInterfaceContract().getInterface().getOperations();

+			for (Operation op : ops) {

+				if( operationName.equals(op.getName()) ) return op;

+			} // end for

+			return null;

+		} // end if 

+	} // end getOperation

+

+	public void setBindingType(String bindingType) {

+		this.bindingType = bindingType;

+	} // end method setBindingType

+

+	public String getBindingType() {

+		return bindingType;

+	} // end method getBindingType

+

+    public RuntimeEndpoint getRequestEndpoint() {

+	return this.requestEndpoint;

+    }

+

+    public RuntimeEndpointReference getResponseEndpointReference() {

+	return this.responseEndpointReference;

+    }

+

+	public void setResponseEndpointReference(

+			RuntimeEndpointReference responseEndpointReference) {

+		this.responseEndpointReference = responseEndpointReference;

+    }

+	

+    @SuppressWarnings("unchecked")

+	private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException

+    {

+	    in.defaultReadObject();

+	    

+	    requestEndpoint = retrieveEndpoint(endpointURI);

+	    responseEndpointReference = retrieveEndpointReference(endpointReferenceURI);

+	    

+	    messageFactory = getMessageFactory();

+	    

+	    if (responseTargetAddress instanceof EndpointReference){

+	        // fix the target as in this case it will be an EPR

+	        EndpointReference epr = (EndpointReference)responseTargetAddress;

+	        responseTargetAddress = (T)retrieveEndpointReference(epr.getURI());

+	    } // end if    

+    } // end method readObject	

+

+    /**

+     * Gets a message factory

+     * @return

+     */

+    private MessageFactory getMessageFactory() {

+    	return registry.getExtensionPoint(FactoryExtensionPoint.class).getFactory(MessageFactory.class);

+	} // end method getMessageFactory

+

+	/**

+     * Fetches the EndpointReference identified by an endpoint reference URI

+     * @param uri - the URI of the endpoint reference

+     * @return - the EndpointReference matching the supplied URI - null if no EPR is found which

+     * matches the URI

+     */

+    private RuntimeEndpointReference retrieveEndpointReference(String uri) {

+		if( uri == null ) return null;

+    	if( domainRegistry == null ) return null;

+		List<EndpointReference> refs = domainRegistry.findEndpointReferences( uri );

+		// If there is more than EndpointReference with the uri...

+		if( refs.isEmpty() ) return null;

+		// TODO: what if there is more than 1 EPR with the given URI?

+		return (RuntimeEndpointReference) refs.get(0);

+	} // end method retrieveEndpointReference

+

+	/**

+     * Fetches the Endpoint identified by an endpoint URI

+     * - the Endpoint is retrieved from the DomainRegistry 

+     * @param uri - the URI of the Endpoint

+     * @return - the Endpoint corresponding to the URI, or null if no Endpoint is found which has the

+     * supplied URI

+     */

+	private RuntimeEndpoint retrieveEndpoint(String uri) {

+		if( uri == null ) return null;

+		if( domainRegistry == null ) domainRegistry = getEndpointRegistry( uri );

+		if( domainRegistry == null ) return null;

+		// TODO what if more than one Endpoint gets returned??

+		return (RuntimeEndpoint) domainRegistry.findEndpoint(uri).get(0);

+	} // end method retrieveEndpoint

+

+	/**

+	 * Gets the DomainRegistry which contains an Endpoint with the supplied URI

+	 * @param uri - The URI of an Endpoint

+	 * @return - the DomainRegistry containing the Endpoint with the supplied URI - null if no

+	 *           such DomainRegistry can be found

+	 */

+	private DomainRegistry getEndpointRegistry(String uri) {

+		ExtensionPointRegistry registry   = null;

+		DomainRegistry domainRegistry = null;

+		

+		CompositeContext context = CompositeContext.getCurrentCompositeContext();

+		if( context == null && requestEndpoint != null ) context = requestEndpoint.getCompositeContext();

+		if( context != null ) {

+			registry = context.getExtensionPointRegistry();

+			domainRegistry = getEndpointRegistry( registry );

+			if( domainRegistry != null ) {

+				this.registry = registry;

+				return domainRegistry;

+			} // end if

+		} // end if

+		

+		// Deal with the case where there is no context available

+    	for(ExtensionPointRegistry r : ExtensionPointRegistryLocator.getExtensionPointRegistries()) {

+                registry = r;

+    		if( registry != null ) {

+    			// Find the actual Endpoint in the DomainRegistry

+        		domainRegistry = getEndpointRegistry( registry );

+                

+                if( domainRegistry != null ) {

+                    for( Endpoint endpoint : domainRegistry.findEndpoint(uri) ) {

+                    	// TODO: For the present, simply return the first registry with a matching endpoint

+                    	this.registry = registry;

+                    	return domainRegistry;

+                    } // end for

+                } // end if 

+    		} // end if

+        } // end for

+		

+		return null;

+	} // end method getEndpointRegistry

+	

+    /**

+     * Get the DomainRegistry

+     * @param registry - the ExtensionPoint registry

+     * @return the DomainRegistry - will be null if the DomainRegistry cannot be found

+     */

+    private DomainRegistry getEndpointRegistry( ExtensionPointRegistry registry) {

+        DomainRegistryFactory domainRegistryFactory = ExtensibleDomainRegistryFactory.getInstance(registry);

+        

+        if( domainRegistryFactory == null ) return null;

+        

+        // Find the first endpoint registry that matches the domain name 

+        if( domainURI != null ) {

+	        for( DomainRegistry domainRegistry : domainRegistryFactory.getEndpointRegistries() ) {

+	        	if( domainURI.equals( domainRegistry.getDomainURI() ) ) return domainRegistry;

+	        } // end for

+        } // end if

+        

+        // if there was no domainName to match, simply return the first DomainRegistry if there is one...

+        

+        if (domainRegistryFactory.getEndpointRegistries().size() > 0){

+            DomainRegistry domainRegistry = (DomainRegistry) domainRegistryFactory.getEndpointRegistries().toArray()[0];

+            return domainRegistry;

+        } else {

+            return null;

+        }

+        

+    } // end method 

+	

+} // end class

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseService.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseService.java
new file mode 100644
index 0000000000..62d7f74505
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseService.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+import org.oasisopen.sca.annotation.OneWay;
+import org.oasisopen.sca.annotation.Remotable;
+
+/**
+ * An interface which describes the client response service interface for a non-native binding
+ * performing an asynchronous invocation of a service
+ *
+ * @param <V> - the type of the non-fault response
+ */
+@Remotable()
+public interface AsyncResponseService<V> {
+	
+	/**
+	 * Async process completed with a wrapped Fault.  Must only be invoked once
+	 * @param e - the wrapper containing the Fault to send
+	 * @throws IllegalStateException if either the setResponse method or the setFault method have been called previously
+	 */
+	@OneWay
+	public void setWrappedFault(AsyncFaultWrapper w);
+	
+	/**
+	 * Async process completed with a response message.  Must only be invoked once
+	 * @throws IllegalStateException if either the setResponse method or the setFault method have been called previously
+	 * @param res - the response message, which is of type V
+	 */
+	@OneWay
+	public void setResponse(V res);
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallableReferenceObjectFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallableReferenceObjectFactory.java
new file mode 100644
index 0000000000..400bb333fd
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallableReferenceObjectFactory.java
@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import org.apache.tuscany.sca.core.factory.ObjectCreationException;
+import org.apache.tuscany.sca.core.factory.ObjectFactory;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * Uses a wire to return a CallableReference
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class CallableReferenceObjectFactory implements ObjectFactory<ServiceReference<?>> {
+    private Class<?> businessInterface;
+    private RuntimeEndpointReference endpointReference;
+
+    /**
+     * Constructor.
+     * 
+     * To support the @Reference protected CallableReference<MyService> ref;
+     * 
+     * @param businessInterface the interface to inject
+     * @param component the component defining the reference to be injected
+     * @param reference the reference to be injected
+     * @param binding the binding for the reference
+     */
+    public CallableReferenceObjectFactory(Class<?> businessInterface,
+                                          RuntimeEndpointReference endpointReference) {
+        this.businessInterface = businessInterface;
+        this.endpointReference = endpointReference;
+    }
+
+    public ServiceReference<?> getInstance() throws ObjectCreationException {
+        RuntimeComponent component = (RuntimeComponent) endpointReference.getComponent();
+        return component.getComponentContext().getServiceReference(businessInterface, endpointReference);
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackInterfaceInterceptor.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackInterfaceInterceptor.java
new file mode 100644
index 0000000000..588eaa2d15
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackInterfaceInterceptor.java
@@ -0,0 +1,60 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+
+/**
+ * An interceptor applied to the forward direction of a wire that ensures the callback target implements the required
+ * service contract. This is required as callback targets may be set dynamically by service implementations.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CallbackInterfaceInterceptor implements Interceptor {
+    private Invoker next;
+
+    public CallbackInterfaceInterceptor() {
+    }
+
+    public Message invoke(Message msg) {
+        
+        /* TODO - EPR - not required for OASIS
+        ReferenceParameters parameters = msg.getFrom().getReferenceParameters();
+        if (parameters.getCallbackObjectID() != null || parameters.getCallbackReference() != msg.getFrom()
+            .getCallbackEndpoint()) {
+        */
+            return next.invoke(msg);
+        /*
+        } else {
+            throw new NoRegisteredCallbackException("Callback target does not implement the callback interface");
+        }
+        */
+    }
+
+    public void setNext(Invoker next) {
+        this.next = next;
+    }
+
+    public Invoker getNext() {
+        return next;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackReferenceObjectFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackReferenceObjectFactory.java
new file mode 100644
index 0000000000..a56983a5d3
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackReferenceObjectFactory.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.core.context.impl.CallbackServiceReferenceImpl;
+import org.apache.tuscany.sca.core.factory.ObjectCreationException;
+import org.apache.tuscany.sca.core.factory.ObjectFactory;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * Uses a wire to return a CallableReference
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class CallbackReferenceObjectFactory implements ObjectFactory<ServiceReference<?>> {
+    private Class<?> businessInterface;
+    private ProxyFactory proxyFactory;
+    private List<EndpointReference> wires;
+
+    public CallbackReferenceObjectFactory(Class<?> interfaze, ProxyFactory proxyFactory, List<EndpointReference> wires) {
+        this.businessInterface = interfaze;
+        this.proxyFactory = proxyFactory;
+        this.wires = wires;
+    }
+
+    public ServiceReference<?> getInstance() throws ObjectCreationException {
+        return new CallbackServiceReferenceImpl(businessInterface, wires);
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackWireObjectFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackWireObjectFactory.java
new file mode 100644
index 0000000000..fff3727d87
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackWireObjectFactory.java
@@ -0,0 +1,48 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.core.factory.ObjectCreationException;
+import org.apache.tuscany.sca.core.factory.ObjectFactory;
+import org.apache.tuscany.sca.runtime.Invocable;
+
+/**
+ * Returns proxy instance for a wire callback
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class CallbackWireObjectFactory<B> implements ObjectFactory<B> {
+    private Class<B> businessInterface;
+    private ProxyFactory proxyFactory;
+    private List<Invocable> wires;
+
+    public CallbackWireObjectFactory(Class<B> interfaze, ProxyFactory proxyFactory, List<Invocable> wires) {
+        this.businessInterface = interfaze;
+        this.proxyFactory = proxyFactory;
+        this.wires = wires;
+    }
+
+    public B getInstance() throws ObjectCreationException {
+        return proxyFactory.createCallbackProxy(businessInterface, wires);
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CglibProxyFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CglibProxyFactory.java
new file mode 100644
index 0000000000..cb2c01f7d6
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CglibProxyFactory.java
@@ -0,0 +1,152 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+import java.lang.reflect.Method;
+import java.util.List;
+
+import net.sf.cglib.proxy.Callback;
+import net.sf.cglib.proxy.Enhancer;
+import net.sf.cglib.proxy.Factory;
+import net.sf.cglib.proxy.MethodInterceptor;
+import net.sf.cglib.proxy.MethodProxy;
+
+import org.apache.tuscany.sca.core.context.ServiceReferenceExt;
+import org.apache.tuscany.sca.core.context.impl.ServiceReferenceImpl;
+import org.apache.tuscany.sca.core.invocation.impl.JDKCallbackInvocationHandler;
+import org.apache.tuscany.sca.core.invocation.impl.JDKInvocationHandler;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * The implementation of a wire service that uses cglib dynamic proxies
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class CglibProxyFactory implements ProxyFactory {
+    private MessageFactory messageFactory;
+
+    public CglibProxyFactory(MessageFactory messageFactory, InterfaceContractMapper mapper) {
+        this.messageFactory = messageFactory;
+
+    }
+
+    public <T> T createProxy(final Class<T> interfaze, Invocable invocable) throws ProxyCreationException {
+        if (invocable instanceof RuntimeEndpoint) {
+            Enhancer enhancer = new Enhancer();
+            enhancer.setSuperclass(interfaze);
+            enhancer.setCallback(new CglibMethodInterceptor<T>(interfaze, invocable));
+            Object proxy = enhancer.create();
+            return interfaze.cast(proxy);
+        }        
+        ServiceReference<T> serviceReference = new ServiceReferenceImpl(interfaze, invocable, null);
+        return createProxy(serviceReference);
+    }
+
+    /**
+     * create the proxy with cglib. use the same JDKInvocationHandler as
+     * JDKProxyService.
+     */
+    public <T> T createProxy(ServiceReference<T> callableReference) throws ProxyCreationException {
+        Enhancer enhancer = new Enhancer();
+        Class<T> interfaze = callableReference.getBusinessInterface();
+        enhancer.setSuperclass(interfaze);
+        enhancer.setCallback(new CglibMethodInterceptor<T>(callableReference));
+        Object proxy = enhancer.create();
+		((ServiceReferenceImpl)callableReference).setProxy(proxy);
+        return interfaze.cast(proxy);
+    }
+
+    /**
+     * create the callback proxy with cglib. use the same
+     * JDKCallbackInvocationHandler as JDKProxyService.
+     */
+    public <T> T createCallbackProxy(Class<T> interfaze, final List<? extends Invocable> wires) throws ProxyCreationException {
+        ServiceReferenceImpl<T> callbackReference = new ServiceReferenceImpl(interfaze, wires.get(0), null);
+        return callbackReference != null ? createCallbackProxy(callbackReference) : null;
+    }
+
+    /**
+     * create the callback proxy with cglib. use the same
+     * JDKCallbackInvocationHandler as JDKProxyService.
+     */
+    public <T> T createCallbackProxy(ServiceReference<T> callbackReference) throws ProxyCreationException {
+        Enhancer enhancer = new Enhancer();
+        Class<T> interfaze = callbackReference.getBusinessInterface();
+        enhancer.setSuperclass(interfaze);
+        enhancer.setCallback(new CglibMethodInterceptor<T>(callbackReference));
+        Object object = enhancer.create();
+        T proxy = interfaze.cast(object);
+        ((ServiceReferenceExt<T>)callbackReference).setProxy(proxy);
+        return proxy;
+    }
+
+    @SuppressWarnings("unchecked")
+    public <B, R extends ServiceReference<B>> R cast(B target) throws IllegalArgumentException {
+        if (isProxyClass(target.getClass())) {
+            Factory factory = (Factory)target;
+            Callback[] callbacks = factory.getCallbacks();
+            if (callbacks.length != 1 || !(callbacks[0] instanceof CglibMethodInterceptor)) {
+                throw new IllegalArgumentException("The object is not a known proxy.");
+            }
+            CglibMethodInterceptor interceptor = (CglibMethodInterceptor)callbacks[0];
+            return (R)interceptor.invocationHandler.getCallableReference();
+        } else {
+            throw new IllegalArgumentException("The object is not a known proxy.");
+        }
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.core.invocation.ProxyFactory#isProxyClass(java.lang.Class)
+     */
+    public boolean isProxyClass(Class<?> clazz) {
+        return Factory.class.isAssignableFrom(clazz);
+    }
+
+    private class CglibMethodInterceptor<T> implements MethodInterceptor {
+        private JDKInvocationHandler invocationHandler;
+
+        public CglibMethodInterceptor(ServiceReference<T> callableReference) {
+            invocationHandler = new JDKInvocationHandler(messageFactory, callableReference);
+        }
+
+        public CglibMethodInterceptor(Class<?> interfaze, Invocable invocable) {
+            invocationHandler = new JDKInvocationHandler(messageFactory, interfaze, invocable);
+        }
+        
+        public CglibMethodInterceptor(ServiceReferenceImpl<T> callbackReference) {
+            invocationHandler = new JDKCallbackInvocationHandler(messageFactory, callbackReference);
+        }
+
+        /**
+         * @see net.sf.cglib.proxy.MethodInterceptor#intercept(java.lang.Object, java.lang.reflect.Method, java.lang.Object[], net.sf.cglib.proxy.MethodProxy)
+         */
+        public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
+            Object result = invocationHandler.invoke(proxy, method, args);
+            return result;
+        }
+
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/Constants.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/Constants.java
new file mode 100644
index 0000000000..d6f872d00a
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/Constants.java
@@ -0,0 +1,31 @@
+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ * 

+ *   http://www.apache.org/licenses/LICENSE-2.0

+ * 

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.    

+ */

+

+package org.apache.tuscany.sca.core.invocation;

+

+/**

+ * Constants used during invocation in the runtime

+ *

+ */

+public interface Constants {

+    String MESSAGE_ID 				= "MESSAGE_ID";

+    String RELATES_TO 				= "RELATES_TO";

+    String ASYNC_RESPONSE_INVOKER 	= "ASYNC_RESPONSE_INVOKER";

+    String ASYNC_CALLBACK 			= "ASYNC_CALLBACK";

+}

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/DefaultProxyFactoryExtensionPoint.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/DefaultProxyFactoryExtensionPoint.java
new file mode 100644
index 0000000000..03505da302
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/DefaultProxyFactoryExtensionPoint.java
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.LifeCycleListener;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.core.invocation.impl.JDKProxyFactory;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+
+/**
+ * Default implementation of a ProxyFactoryExtensionPoint.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultProxyFactoryExtensionPoint implements ProxyFactoryExtensionPoint, LifeCycleListener {
+    private InterfaceContractMapper interfaceContractMapper;
+    private MessageFactory messageFactory;
+
+    private ProxyFactory interfaceFactory;
+    private ProxyFactory classFactory;
+
+    public DefaultProxyFactoryExtensionPoint(ExtensionPointRegistry registry) {
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        this.interfaceContractMapper = utilities.getUtility(InterfaceContractMapper.class);
+
+        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        this.messageFactory = modelFactories.getFactory(MessageFactory.class);
+
+        interfaceFactory = new JDKProxyFactory(registry, messageFactory, interfaceContractMapper);
+    }
+
+    //    public DefaultProxyFactoryExtensionPoint(MessageFactory messageFactory, InterfaceContractMapper mapper) {
+    //        this.interfaceContractMapper = mapper;
+    //        this.messageFactory = messageFactory;
+    //        interfaceFactory = new JDKProxyFactory(null, messageFactory, mapper);
+    //    }
+
+    public ProxyFactory getClassProxyFactory() {
+        return classFactory;
+    }
+
+    public ProxyFactory getInterfaceProxyFactory() {
+        return interfaceFactory;
+    }
+
+    public void setClassProxyFactory(ProxyFactory factory) {
+        this.classFactory = factory;
+
+    }
+
+    public void setInterfaceProxyFactory(ProxyFactory factory) {
+        this.interfaceFactory = factory;
+
+    }
+
+    public void start() {
+        if (interfaceFactory instanceof LifeCycleListener) {
+            ((LifeCycleListener)interfaceFactory).start();
+        }
+        if (classFactory instanceof LifeCycleListener) {
+            ((LifeCycleListener)classFactory).start();
+        }
+    }
+
+    public void stop() {
+        if (interfaceFactory instanceof LifeCycleListener) {
+            ((LifeCycleListener)interfaceFactory).stop();
+        }
+        if (classFactory instanceof LifeCycleListener) {
+            ((LifeCycleListener)classFactory).stop();
+        }
+
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ExtensibleProxyFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ExtensibleProxyFactory.java
new file mode 100644
index 0000000000..049c73f258
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ExtensibleProxyFactory.java
@@ -0,0 +1,125 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * An extensible proxy factory.
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class ExtensibleProxyFactory implements ProxyFactory {
+    
+    private ProxyFactoryExtensionPoint proxyFactories;
+
+    public ExtensibleProxyFactory(ProxyFactoryExtensionPoint proxyFactories) {
+        this.proxyFactories = proxyFactories;
+    }
+    
+    public ExtensibleProxyFactory(ExtensionPointRegistry registry) {
+        this.proxyFactories = registry.getExtensionPoint(ProxyFactoryExtensionPoint.class);
+    }
+    
+    public static ExtensibleProxyFactory getInstance(ExtensionPointRegistry registry) {
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        return utilities.getUtility(ExtensibleProxyFactory.class);
+    }
+    
+    /**
+     * @see org.apache.tuscany.sca.core.invocation.ProxyFactory#cast(java.lang.Object)
+     */
+    @SuppressWarnings("unchecked")
+    public <B, R extends ServiceReference<B>> R cast(B target) throws IllegalArgumentException {
+        ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
+        ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
+        if (interfaceFactory.isProxyClass(target.getClass())) {
+            return (R)interfaceFactory.cast(target);
+        } else if (classFactory != null && classFactory.isProxyClass(target.getClass())) {
+            return (R)classFactory.cast(target);
+        } else {
+            throw new IllegalArgumentException("The target is not a callable proxy");
+        }
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.core.invocation.ProxyFactory#createCallbackProxy(java.lang.Class,
+     *      java.util.List)
+     */
+    public <T> T createCallbackProxy(Class<T> interfaze, List<? extends Invocable> wires) throws ProxyCreationException {
+        ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
+        ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
+        if (interfaze.isInterface()) {
+            return interfaceFactory.createCallbackProxy(interfaze, wires);
+        } else {
+            return classFactory.createCallbackProxy(interfaze, wires);
+        }
+    }
+
+    public <T> T createProxy(ServiceReference<T> callableReference) throws ProxyCreationException {
+        ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
+        ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
+        if (callableReference.getBusinessInterface().isInterface()) {
+            return interfaceFactory.createProxy(callableReference);
+        } else {
+            return classFactory.createProxy(callableReference);
+        }
+    }
+
+    public <T> T createCallbackProxy(ServiceReference<T> callbackReference) throws ProxyCreationException {
+        ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
+        ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
+        if (callbackReference.getBusinessInterface().isInterface()) {
+            return interfaceFactory.createCallbackProxy(callbackReference);
+        } else {
+            return classFactory.createCallbackProxy(callbackReference);
+        }
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.core.invocation.ProxyFactory#createProxy(java.lang.Class,
+     *      org.apache.tuscany.sca.runtime.Invocable)
+     */
+    public <T> T createProxy(Class<T> interfaze, Invocable wire) throws ProxyCreationException {
+        ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
+        ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
+        if (interfaze.isInterface()) {
+            return interfaceFactory.createProxy(interfaze, wire);
+        } else {
+            return classFactory.createProxy(interfaze, wire);
+        }
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.core.invocation.ProxyFactory#isProxyClass(java.lang.Class)
+     */
+    public boolean isProxyClass(Class<?> clazz) {
+        ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
+        ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
+        return interfaceFactory.isProxyClass(clazz) || (classFactory != null && classFactory.isProxyClass(clazz));
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ExtensibleWireProcessor.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ExtensibleWireProcessor.java
new file mode 100644
index 0000000000..08019ec3e2
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ExtensibleWireProcessor.java
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.apache.tuscany.sca.runtime.RuntimeWireProcessor;
+import org.apache.tuscany.sca.runtime.RuntimeWireProcessorExtensionPoint;
+
+/**
+ * The default implementation of an extensible <code>WireProcessor</code>
+ *
+ * @version $Rev$ $Date$
+ */
+public class ExtensibleWireProcessor implements RuntimeWireProcessor {
+
+    private RuntimeWireProcessorExtensionPoint processors;
+
+    public ExtensibleWireProcessor(RuntimeWireProcessorExtensionPoint processors) {
+        this.processors = processors;
+    }
+
+    public void process(RuntimeEndpoint endpoint) {
+        for (RuntimeWireProcessor processor : processors.getWireProcessors()) {
+            processor.process(endpoint);
+        }
+    }
+
+    public void process(RuntimeEndpointReference endpointReference) {
+        for (RuntimeWireProcessor processor : processors.getWireProcessors()) {
+            processor.process(endpointReference);
+        }
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/InterceptorAsyncImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/InterceptorAsyncImpl.java
new file mode 100644
index 0000000000..265311fe6b
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/InterceptorAsyncImpl.java
@@ -0,0 +1,111 @@
+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ * 

+ *   http://www.apache.org/licenses/LICENSE-2.0

+ * 

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.    

+ */

+

+package org.apache.tuscany.sca.core.invocation;

+

+

+import org.apache.tuscany.sca.invocation.InterceptorAsync;

+import org.apache.tuscany.sca.invocation.Invoker;

+import org.apache.tuscany.sca.invocation.InvokerAsyncRequest;

+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;

+import org.apache.tuscany.sca.invocation.Message;

+

+/**

+ * A base class that holds the mechanics for representing 

+ * chained interceptors and for driving processing up and 

+ * down the chain. 

+ *

+ */

+public abstract class InterceptorAsyncImpl implements InterceptorAsync {

+    

+    protected Invoker next;

+    protected InvokerAsyncResponse previous;

+    

+    public Invoker getNext() {

+        return (Invoker)next;

+    }

+    

+    public void setNext(Invoker next) {

+        this.next = next;

+    }

+    

+    public InvokerAsyncResponse getPrevious() {

+        return previous;

+    }

+    

+    public void setPrevious(InvokerAsyncResponse previous) {

+        this.previous = previous;

+    }

+    

+    public Message invoke(Message msg) {

+        msg = processRequest(msg);

+        Message resultMsg = getNext().invoke(msg);

+        resultMsg = processResponse(resultMsg);

+        return resultMsg;

+    }

+    

+    public void invokeAsyncRequest(Message msg) throws Throwable {

+    	try{ 

+	        msg = processRequest(msg);

+	        InvokerAsyncRequest theNext = (InvokerAsyncRequest)getNext();

+	        if( theNext != null ) theNext.invokeAsyncRequest(msg);

+	        postProcessRequest(msg);

+    	} catch (Throwable e) {

+    		postProcessRequest(msg, e);

+    	} // end try

+    } // end method invokeAsyncRequest

+    

+    public void invokeAsyncResponse(Message msg) {

+        msg = processResponse(msg);

+        InvokerAsyncResponse thePrevious = (InvokerAsyncResponse)getPrevious();

+        if (thePrevious != null ) thePrevious.invokeAsyncResponse(msg);

+    } // end method invokeAsyncResponse

+

+    /**

+     * Basic null version of postProcessRequest - subclasses should override for any required

+     * real processing 

+     */

+    public Message postProcessRequest(Message msg) {

+    	// Default processing is to do nothing

+    	return msg;

+    } // end method postProcessRequest

+

+    /**

+     * Basic null version of postProcessRequest - subclasses should override for any required

+     * real processing 

+     * @throws Throwable 

+     */

+    public Message postProcessRequest(Message msg, Throwable e) throws Throwable {

+    	// Default processing is to rethrow the exception

+    	throw e;

+    } // end method postProcessRequest

+

+    

+    /**

+     * A testing method while I use the local SCA binding wire to look 

+     * at how the async response path works. This allows me to detect the

+     * point where the reference wire turns into the service with in the

+     * optimized case

+     * 

+     * @return

+     */

+    public boolean isLocalSCABIndingInvoker() {

+        return false;

+    }

+}

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/JDKAsyncResponseInvoker.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/JDKAsyncResponseInvoker.java
new file mode 100644
index 0000000000..ad797b68b0
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/JDKAsyncResponseInvoker.java
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
+
+public interface JDKAsyncResponseInvoker extends InvokerAsyncResponse {
+	
+	/**
+	 * Registers an Async response, which provides an ID which identifies a given response
+	 * and an object which can handle the response
+	 * @param id - the ID
+	 * @param responseHandler - the response handler object
+	 */
+	public void registerAsyncResponse( String id, Object responseHandler );
+
+} // end interface JDKAsyncResponseInvoker
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/NonBlockingInterceptor.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/NonBlockingInterceptor.java
new file mode 100644
index 0000000000..7108728206
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/NonBlockingInterceptor.java
@@ -0,0 +1,197 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.context.ThreadMessageContext;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.work.WorkScheduler;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Adds non-blocking behavior to an invocation chain
+ *
+ * @version $Rev$ $Date$
+ */
+public class NonBlockingInterceptor extends InterceptorAsyncImpl {
+
+    private static final Message RESPONSE = new ImmutableMessage();
+
+    /**
+     * The JDK logger that will be used to log messages.
+     */
+    private static final Logger LOGGER = Logger.getLogger(NonBlockingInterceptor.class.getName());
+
+    private WorkScheduler workScheduler;
+
+    public NonBlockingInterceptor(WorkScheduler workScheduler) {
+        this.workScheduler = workScheduler;
+    }
+
+    public NonBlockingInterceptor(WorkScheduler workScheduler, Interceptor next) {
+        this.workScheduler = workScheduler;
+        this.next = next;
+    }
+
+    /**
+     * Sets desired workScheduler to NonBlockingInterceptor. This is a useful function for the extension framework
+     * to set desired workmanager on the InvocationChain, other than default workmanager which is set per Tuscany runtime.
+     * Using this function, extension framework can set desired workmanager on InvocationChain during post wire processing.
+     * @param workScheduler workScheduler which contains workmanager
+     */
+    public void setWorkScheduler(WorkScheduler workScheduler){
+        this.workScheduler = workScheduler;
+    }
+
+    /**
+     * For request/response messages use the workScheduler to break the connection between
+     * requests and the void response
+     */
+    @Override
+    public Message invoke(final Message msg) {
+        // Schedule the invocation of the next interceptor in a new Work instance
+        try {
+            workScheduler.scheduleWork(new Runnable() {
+                public void run() {
+                    Message context = ThreadMessageContext.setMessageContext(msg);
+                    try {
+                        Message response = null;
+
+                        Throwable ex = null;
+                        try {
+                            response = next.invoke(msg);
+                        } catch (Throwable t) {
+                            ex = t;
+                        }
+
+                        // Tuscany-2225 - Did the @OneWay method complete successfully?
+                        // (i.e. no exceptions)
+                        if (response != null && response.isFault()) {
+                            // The @OneWay method threw an Exception. Lets log it and
+                            // then pass it on to the WorkScheduler so it can notify any
+                            // listeners
+                            ex = (Throwable)response.getBody();
+                        }
+                        if (ex != null) {
+                            LOGGER.log(Level.SEVERE, "Exception from @OneWay invocation", ex);
+                            throw new ServiceRuntimeException("Exception from @OneWay invocation", ex);
+                        }
+                    } finally {
+                        ThreadMessageContext.setMessageContext(context);
+                    }
+                }
+            });
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+        return RESPONSE;
+    }
+    
+    /**
+     * For forward async responses we just pass the message along
+     * as this is naturally one way
+     */
+    public Message processRequest(Message msg) {
+        return msg;
+    }
+    
+    /**
+     * This should never be called as a one way message won't
+     * expect a response
+     */
+    public Message processResponse(Message msg) {
+        return null;
+    }
+
+    /**
+     * A dummy message passed back on an invocation
+     */
+    private static class ImmutableMessage implements Message {
+
+        public <T> T getBody() {
+            return null;
+        }
+
+        public void setBody(Object body) {
+            if (body != null) {
+                throw new UnsupportedOperationException();
+            }
+        }
+
+        public Object getMessageID() {
+            return null;
+        }
+
+        public void setMessageID(Object messageId) {
+            throw new UnsupportedOperationException();
+        }
+
+        public boolean isFault() {
+            return false;
+        }
+
+        public void setFaultBody(Object fault) {
+            throw new UnsupportedOperationException();
+        }
+
+        public EndpointReference getFrom() {
+            return null;
+        }
+
+        public Endpoint getTo() {
+            return null;
+        }
+
+        public void setFrom(EndpointReference from) {
+            throw new UnsupportedOperationException();
+        }
+
+        public void setTo(Endpoint to) {
+            throw new UnsupportedOperationException();
+        }
+
+        public Operation getOperation() {
+            return null;
+        }
+
+        public void setOperation(Operation op) {
+            throw new UnsupportedOperationException();
+        }
+        
+        public Map<String, Object> getHeaders() {
+            return null;
+        }        
+        public <T> T getBindingContext() {
+            return null;
+        }
+
+        public <T> void setBindingContext(T bindingContext) {
+        }        
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyCreationException.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyCreationException.java
new file mode 100644
index 0000000000..0b36b178f3
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyCreationException.java
@@ -0,0 +1,48 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import org.apache.tuscany.sca.core.factory.ObjectCreationException;
+
+
+/**
+ * Denotes an error creating a proxy
+ *
+ * @version $Rev$ $Date$
+ */
+public class ProxyCreationException extends ObjectCreationException {
+    private static final long serialVersionUID = 8002454344828513781L;
+
+    public ProxyCreationException() {
+        super();
+    }
+
+    public ProxyCreationException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ProxyCreationException(String message) {
+        super(message);
+    }
+
+    public ProxyCreationException(Throwable cause) {
+        super(cause);
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyFactory.java
new file mode 100644
index 0000000000..f2d272757d
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyFactory.java
@@ -0,0 +1,88 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * Creates proxies that implement Java interfaces and invocation handlers for fronting wires
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+
+public interface ProxyFactory {
+
+    /**
+     * Creates a Java proxy for the given wire
+     *
+     * @param interfaze the interface the proxy implements
+     * @param invocable the wire to proxy
+     * @return the proxy
+     * @throws ProxyCreationException
+     */
+    <T> T createProxy(Class<T> interfaze, Invocable invocable) throws ProxyCreationException;
+
+    /**
+     * Creates a Java proxy for the given CallableReference
+     *
+     * @param callableReference The CallableReference
+     * @return the proxy
+     * @throws ProxyCreationException
+     */
+    <T> T createProxy(ServiceReference<T> callableReference) throws ProxyCreationException;
+
+    /**
+     * Creates a Java proxy for the service contract callback
+     *
+     * @param interfaze the interface the proxy should implement
+     * @return the proxy
+     * @throws ProxyCreationException
+     */
+    <T> T createCallbackProxy(Class<T> interfaze, List<? extends Invocable> invocables) throws ProxyCreationException;
+
+    /**
+     * Creates a Java proxy for the given callback reference
+     *
+     * @param callableReference The CallableReference
+     * @return the proxy
+     * @throws ProxyCreationException
+     */
+    <T> T createCallbackProxy(ServiceReference<T> callbackReference) throws ProxyCreationException;
+
+    /**
+     * Cast a proxy to a CallableReference.
+     *
+     * @param target a proxy generated by this implementation
+     * @return a CallableReference (or subclass) equivalent to this proxy
+     * @throws IllegalArgumentException if the object supplied is not a proxy
+     */
+    <B, R extends ServiceReference<B>> R cast(B target) throws IllegalArgumentException;
+    
+    /**
+     * Test if a given class is a generated proxy class by this factory
+     * @param clazz A java class or interface
+     * @return true if the class is a generated proxy class by this factory 
+     */
+    boolean isProxyClass(Class<?> clazz);
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyFactoryExtensionPoint.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyFactoryExtensionPoint.java
new file mode 100644
index 0000000000..3e0bd7cb17
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/ProxyFactoryExtensionPoint.java
@@ -0,0 +1,54 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+
+/**
+ * The extension point to plug in proxy factories
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public interface ProxyFactoryExtensionPoint {
+    
+    /**
+     * Get the proxy factory for java interfaces
+     * @return
+     */
+    ProxyFactory getInterfaceProxyFactory();
+
+    /**
+     * Get the proxy factory for java classes
+     * @return
+     */
+    ProxyFactory getClassProxyFactory();
+
+    /**
+     * Set the proxy factory for java interfaces
+     * @param factory
+     */
+    void setInterfaceProxyFactory(ProxyFactory factory);
+
+    /**
+     * Set the proxy factory for java classes
+     * @param factory
+     */
+    void setClassProxyFactory(ProxyFactory factory);
+    
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/RuntimeInvoker.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/RuntimeInvoker.java
new file mode 100644
index 0000000000..a9b93ae2e8
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/RuntimeInvoker.java
@@ -0,0 +1,209 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.UUID;
+import java.util.concurrent.ExecutorService;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.context.ThreadMessageContext;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.InvokerAsyncRequest;
+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.apache.tuscany.sca.work.WorkScheduler;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Invoker for a endpoint or endpoint reference
+ * @version $Rev$ $Date$
+ */
+public class RuntimeInvoker implements Invoker, InvokerAsyncRequest {
+    protected ExtensionPointRegistry registry;
+    protected MessageFactory messageFactory;
+    protected Invocable invocable;
+    
+    // Run async service invocations using a ThreadPoolExecutor
+    private ExecutorService theExecutor;
+
+    public RuntimeInvoker(ExtensionPointRegistry registry, Invocable invocable) {
+        this.registry = registry;
+        this.messageFactory = registry.getExtensionPoint(FactoryExtensionPoint.class).getFactory(MessageFactory.class);
+        this.invocable = invocable;
+        
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        WorkScheduler scheduler = utilities.getUtility(WorkScheduler.class);
+        theExecutor = scheduler.getExecutorService();
+    }
+
+    public Message invokeBinding(Message msg) {
+        Message context = ThreadMessageContext.setMessageContext(msg);
+        try {
+            return invocable.getBindingInvocationChain().getHeadInvoker().invoke(msg);
+        } finally {
+            ThreadMessageContext.setMessageContext(context);
+        }
+    } // end method invokeBinding
+    
+    /**
+     * Async Invoke of the Binding Chain 
+     * @param msg - the message to use in the invocation
+     */
+    public void invokeBindingAsync(Message msg) {
+        Message context = ThreadMessageContext.setMessageContext(msg);
+        try {
+            ((InvokerAsyncRequest)invocable.getBindingInvocationChain().getHeadInvoker()).invokeAsyncRequest(msg);
+        } catch (Throwable t ) {
+        	// TODO - consider what best to do with exception
+        } finally {
+            ThreadMessageContext.setMessageContext(context);
+        } // end try
+    } // end method invokeBindingAsync
+    
+    public Message invoke(Message msg) {
+        return invoke(msg.getOperation(), msg);
+    }
+
+    public Object invoke(Operation operation, Object[] args) throws InvocationTargetException {
+        Message msg = messageFactory.createMessage();
+        msg.setBody(args);
+        Message resp = invoke(operation, msg);
+        Object body = resp.getBody();
+        if (resp.isFault()) {
+            throw new InvocationTargetException((Throwable)body);
+        }
+        return body;
+    }
+
+
+    public Message invoke(Operation operation, Message msg) {
+        InvocationChain chain = invocable.getInvocationChain(operation);
+        return invoke(chain, msg);
+    }
+
+    public Message invoke(InvocationChain chain, Message msg) {
+
+        if (invocable instanceof Endpoint) {
+            msg.setTo((Endpoint)invocable);
+        } else if (invocable instanceof EndpointReference) {
+            msg.setFrom((EndpointReference)invocable);
+        }
+
+        Invoker headInvoker = chain.getHeadInvoker();
+        Operation operation = chain.getTargetOperation();
+        msg.setOperation(operation);
+
+        Message msgContext = ThreadMessageContext.setMessageContext(msg);
+        try {
+            return headInvoker.invoke(msg);
+        } finally {
+            ThreadMessageContext.setMessageContext(msgContext);
+        }
+    }
+    
+    /**
+     * Initiate the sending of the forward part of an asynchronous
+     * exchange along the request part of the wire. 
+     * 
+     * @param msg the request message
+     */
+    public void invokeAsync(Message msg) {
+        if (invocable instanceof Endpoint) {
+            Endpoint ep = (Endpoint)invocable;
+            msg.setTo(ep);
+            if (!ep.isAsyncInvocation()){
+                throw new ServiceRuntimeException("Calling invokeAsync on a non-async endpoint - " + 
+                                                  ep);
+            }
+        } else if (invocable instanceof EndpointReference) {
+            RuntimeEndpointReference epr = (RuntimeEndpointReference)invocable;
+            if (!epr.isAsyncInvocation()){
+                throw new ServiceRuntimeException("Calling invokeAsync on a non-async endpoint reference - " + 
+                                                  epr);
+            }
+            if (epr.isOutOfDate()) {
+                epr.rebuild();
+            }
+            msg.setFrom(epr);
+            msg.setTo(epr.getTargetEndpoint());
+        }
+        
+        Operation operation = msg.getOperation();
+        InvocationChain chain = invocable.getInvocationChain(operation);
+
+        if (chain == null) {
+            throw new IllegalArgumentException("No matching operation is found: " + operation.getName());
+        }
+        
+        // create an async message ID if there isn't one there already
+        if (!msg.getHeaders().containsKey(Constants.MESSAGE_ID)){
+            msg.getHeaders().put(Constants.MESSAGE_ID, UUID.randomUUID().toString());UUID.randomUUID().toString();
+        }
+
+        // Perform the async invocation
+        Invoker headInvoker = chain.getHeadInvoker();
+
+        Message msgContext = ThreadMessageContext.setMessageContext(msg);
+        try {
+            try {
+                ((InvokerAsyncRequest)headInvoker).invokeAsyncRequest(msg);
+            } catch (ServiceRuntimeException ex) {
+                throw ex;
+            } catch (Throwable ex) {                
+                // temporary fix to swallow the dummy exception that's
+                // thrown back to get past the response chain processing. 
+                if (!(ex instanceof AsyncResponseException)){
+                    throw new ServiceRuntimeException(ex);
+                }
+            }
+        } finally {
+            ThreadMessageContext.setMessageContext(msgContext);
+        }
+
+        return;
+    }
+    
+    /**
+     * Initiate the sending of the response part of an asynchronous
+     * exchange along the response part of the wire. 
+     * 
+     * @param msg the response message
+     */
+    public void invokeAsyncResponse(Message msg) {  
+    	InvocationChain chain = invocable.getInvocationChain(msg.getOperation());
+        Invoker tailInvoker = chain.getTailInvoker();
+        ((InvokerAsyncResponse)tailInvoker).invokeAsyncResponse(msg);       
+    } // end method invokeAsyncResponse
+
+	@Override
+	public void invokeAsyncRequest(Message msg) throws Throwable {
+		invokeAsync(msg);
+	} // end method invokeAsyncRequest
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/WireObjectFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/WireObjectFactory.java
new file mode 100644
index 0000000000..489d06a3e1
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/WireObjectFactory.java
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation;
+
+import org.apache.tuscany.sca.core.context.impl.ServiceReferenceImpl;
+import org.apache.tuscany.sca.core.factory.ObjectCreationException;
+import org.apache.tuscany.sca.core.factory.ObjectFactory;
+import org.apache.tuscany.sca.core.invocation.impl.NoMethodForOperationException;
+import org.apache.tuscany.sca.runtime.Invocable;
+
+/**
+ * Uses a wire to return an object instance
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class WireObjectFactory<T> implements ObjectFactory<T> {
+    private Class<T> interfaze;
+    private Invocable wire;
+    private ProxyFactory proxyService;
+    
+    /**
+     * Constructor.
+     * 
+     * @param interfaze the interface to inject on the client
+     * @param wire the backing wire
+     * @param proxyService the wire service to create the proxy
+     * @throws NoMethodForOperationException
+     */
+    public WireObjectFactory(Class<T> interfaze, Invocable wire, ProxyFactory proxyService) {
+        this.interfaze = interfaze;
+        this.wire = wire;
+        this.proxyService = proxyService;
+    }
+
+    public T getInstance() throws ObjectCreationException {
+        return new ServiceReferenceImpl<T>(interfaze, wire, null).getProxy();
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncInvocationFutureImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncInvocationFutureImpl.java
new file mode 100644
index 0000000000..213fd536e9
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncInvocationFutureImpl.java
@@ -0,0 +1,248 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+import javax.xml.ws.Response;
+
+import org.apache.tuscany.sca.core.invocation.AsyncFaultWrapper;
+import org.apache.tuscany.sca.core.invocation.AsyncResponseHandler;
+
+/**
+ * A class which provides an Implementation of a Future<V> and Response<V> for use with the JAXWS defined client
+ * asynchronous APIs.
+ * 
+ * This implementation class provides the interfaces for use by the client code, but also provides methods for the
+ * Tuscany system code to set the result of the asynchronous service invocation, both Regular and Fault responses. 
+ * 
+ * This class is constructed to be fully thread-safe
+ *
+ * @param <V> - this is the type of the response message from the invoked service.
+ */
+public class AsyncInvocationFutureImpl<V> implements Future<V>, Response<V>, AsyncResponseHandler<V> {
+	
+	// Lock for handling the completion of this Future
+	private final Lock lock = new ReentrantLock();
+    private final Condition isDone  = lock.newCondition(); 
+    
+	// The result
+	private volatile V response = null;
+	private volatile Throwable fault = null; 
+	
+	private String uniqueID = UUID.randomUUID().toString();
+	
+	private ClassLoader classLoader = null;
+	
+	protected AsyncInvocationFutureImpl() {
+		super();
+	} // end constructor
+	
+	/**
+	 * Public constructor for AsyncInvocationFutureImpl - newInstance is necessary in order to enable the Type variable
+	 * to be set for the class instances
+	 * @param <V> - the type of the response from the asynchronously invoked service
+	 * @param type - the type of the AsyncInvocationFutureImpl expressed as a parameter
+	 * @param classLoader - the classloader used for the business interface to which this Future applies
+	 * @return - an instance of AsyncInvocationFutureImpl<V>
+	 */
+	public static <V> AsyncInvocationFutureImpl<V> newInstance( Class<V> type, ClassLoader classLoader ) {
+		AsyncInvocationFutureImpl<V> future = new AsyncInvocationFutureImpl<V>();
+		future.setClassLoader( classLoader );
+		return future;
+	}
+
+	/**
+	 * Cancels the asynchronous process
+	 * - not possible in this version, so always returns false
+	 */
+	public boolean cancel(boolean mayInterruptIfRunning) {
+		return false;
+	}
+
+	/**
+	 * Gets the response value returned by the asynchronous process
+	 * - waits forever
+	 * @return - the response value of type V
+	 * @throws InterruptedException if the get() method was interrupted while waiting for the async process to finish
+	 * @throws ExecutionException if the async process threw an exception - the exception thrown is nested
+	 */
+	public V get() throws InterruptedException, ExecutionException {
+		try {
+			V response = get(Long.MAX_VALUE, TimeUnit.SECONDS);
+			return response;
+		} catch (TimeoutException t) {
+			throw new InterruptedException("Timed out waiting for Future to complete");
+		} // end try
+	} // end method get()
+
+	/**
+	 * Gets the response value returned by the asynchronous process
+	 * @return - the response value of type V
+	 * @throws InterruptedException if the get() method was interrupted while waiting for the async process to finish
+	 * @throws ExecutionException if the async process threw an exception - the exception thrown is nested
+	 * @throws TimeoutException if the get() method timed out waiting for the async process to finish
+	 */
+	public V get(long timeout, TimeUnit unit) throws InterruptedException,
+			ExecutionException, TimeoutException {
+		lock.lock();
+		try {
+			// wait for result to be available
+			if( notSetYet() ) isDone.await( timeout, unit);
+			if( response != null ) return response;
+			if( fault != null ) throw new ExecutionException( fault );
+			throw new TimeoutException("get on this Future timed out");
+		} finally {
+			lock.unlock();
+		} // end try
+
+	} // end method get(long timeout, TimeUnit unit)
+
+	/**
+	 * Indicates if the asynchronous process has been cancelled
+	 * - not possible in this version so always returns false
+	 */
+	public boolean isCancelled() {
+		return false;
+	}
+
+	/**
+	 * Indicates if the asynchronous process is completed
+	 * @return - true if the process is completed, false otherwise
+	 */
+	public boolean isDone() {
+		lock.lock();
+		try {
+			return !notSetYet();
+		} finally {
+			lock.unlock();
+		} // end try
+	} // end method isDone
+	
+	/**
+	 * Async process completed with a Fault.  Must only be invoked once.
+	 * @param e - the Fault to send
+	 * @throws IllegalStateException if either the setResponse method or the setFault method have been called previously
+	 */
+	public void setFault( Throwable e ) {
+		lock.lock();
+		try {
+			if( notSetYet() ) {
+				fault = e;
+				isDone.signalAll();
+			} else {
+				throw new IllegalStateException("setResponse() or setFault() has been called previously");
+			} // end if 
+		} finally {
+			lock.unlock();
+		} // end try
+	} // end method setFault( Throwable )
+	
+	/**
+	 * Async process completed with a wrapped Fault.  Must only be invoked once.
+	 * @param w - the wrapped Fault to send
+	 * @throws IllegalStateException if either the setResponse method or the setFault method have been called previously
+	 */
+	public void setWrappedFault(AsyncFaultWrapper w) {
+
+		ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+		Throwable e;
+		try {
+			 // Set the TCCL to the classloader of the business interface
+            Thread.currentThread().setContextClassLoader(this.getClassLoader());
+			e = w.retrieveFault();
+		} finally {
+			Thread.currentThread().setContextClassLoader(tccl);
+		} // end try
+		
+		if( e == null ) throw new IllegalArgumentException("AsyncFaultWrapper did not return an Exception");
+		setFault( e );
+
+	} // end method setFault( AsyncFaultWrapper )
+
+	/**
+	 * Async process completed with a response message.  Must only be invoked once
+	 * @throws IllegalStateException if either the setResponse method or the setFault method have been called previously
+	 * @param res - the response message, which is of type V
+	 */
+	public void setResponse(V res) {
+		
+		lock.lock();
+		try {
+			if( notSetYet() ) {
+				response = res;
+				isDone.signalAll();
+			} else {
+				throw new IllegalStateException("setResponse() or setFault() has been called previously");
+			}
+		} finally {
+			lock.unlock();
+		} // end try
+			
+	} // end method setResponse
+	
+	/**
+	 * Gets the unique ID of this future as a String
+	 */
+	public String getUniqueID() { return uniqueID; }
+
+	/**
+	 * Indicates that setting a response value is OK - can only set the response value or fault once
+	 * @return - true if it is OK to set the response, false otherwise
+	 */
+	private boolean notSetYet() {
+		return ( response == null && fault == null );
+	}
+	
+	/**
+	 * Returns the JAXWS context for the response
+	 * @return - a Map containing the context
+	 */
+	public Map<String, Object> getContext() {
+		// Intentionally returns null
+		return null;
+	}
+	
+	/**
+	 * Gets the classloader associated with the business interface to which this Future relates
+	 * @return the ClassLoader of the business interface
+	 */
+	public ClassLoader getClassLoader() {
+		return classLoader;
+	}
+
+	/**
+	 * Sets the classloader associated with the business interface to which this Future relates
+	 * @param classLoader - the classloader of the business interface
+	 */
+	public void setClassLoader(ClassLoader classLoader) {
+		this.classLoader = classLoader;
+	}
+
+
+} // end class AsyncInvocationFutureImpl
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncJDKInvocationHandler.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncJDKInvocationHandler.java
new file mode 100644
index 0000000000..29d2da1487
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncJDKInvocationHandler.java
@@ -0,0 +1,756 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.beans.Introspector;
+import java.beans.PropertyDescriptor;
+import java.io.StringReader;
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.Arrays;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.transform.stream.StreamSource;
+import javax.xml.ws.AsyncHandler;
+import javax.xml.ws.Response;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilder;
+import org.apache.tuscany.sca.assembly.builder.BuilderContext;
+import org.apache.tuscany.sca.assembly.builder.BuilderExtensionPoint;
+import org.apache.tuscany.sca.assembly.xml.Constants;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.context.ThreadMessageContext;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.ValidatingXMLInputFactory;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.core.assembly.RuntimeAssemblyFactory;
+import org.apache.tuscany.sca.core.invocation.AsyncFaultWrapper;
+import org.apache.tuscany.sca.core.invocation.AsyncResponseException;
+import org.apache.tuscany.sca.core.invocation.AsyncResponseService;
+import org.apache.tuscany.sca.core.invocation.JDKAsyncResponseInvoker;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.util.FaultException;
+import org.apache.tuscany.sca.interfacedef.util.WrapperInfo;
+import org.apache.tuscany.sca.invocation.InterceptorAsync;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.provider.EndpointReferenceAsyncProvider;
+import org.apache.tuscany.sca.provider.PolicyProvider;
+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
+import org.apache.tuscany.sca.provider.ServiceBindingProvider;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.apache.tuscany.sca.work.WorkScheduler;
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * An InvocationHandler which deals with JAXWS-defined asynchronous client Java API method calls
+ * 
+ * 2 asynchronous mappings exist for any given synchronous service operation, as shown in this example:
+ *  public interface StockQuote {
+ *      float getPrice(String ticker);
+ *      Response<Float> getPriceAsync(String ticker);
+ *      Future<?> getPriceAsync(String ticker, AsyncHandler<Float> handler);
+ *  }
+ *
+ * - the second method is called the "polling method", since the returned Response<?> object permits
+ *   the client to poll to see if the async call has completed
+ * - the third method is called the "async callback method", since in this case the client application can specify
+ *   a callback operation that is automatically called when the async call completes
+ */
+public class AsyncJDKInvocationHandler extends JDKInvocationHandler {
+
+    private static final long serialVersionUID = 1L;
+
+    private static int invocationCount = 10; // # of threads to use
+    private static long maxWaitTime = 30; // Max wait time for completion = 30sec
+    
+    // Run the async service invocations using a ThreadPoolExecutor
+    private ExecutorService theExecutor;
+
+    public AsyncJDKInvocationHandler(ExtensionPointRegistry registry,
+                                     MessageFactory messageFactory,
+                                     ServiceReference<?> callableReference ) {
+        super(messageFactory, callableReference);
+        initExecutorService(registry);
+    }
+
+    public AsyncJDKInvocationHandler(ExtensionPointRegistry registry,
+                                     MessageFactory messageFactory,
+                                     Class<?> businessInterface,
+                                     Invocable source ) {
+        super(messageFactory, businessInterface, source);
+        initExecutorService(registry);
+    }
+
+    private final void initExecutorService(ExtensionPointRegistry registry) {
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        WorkScheduler scheduler = utilities.getUtility(WorkScheduler.class);
+        theExecutor = scheduler.getExecutorService();
+
+    } // end method initExecutorService
+
+    /**
+     * Perform the invocation of the operation
+     * - provides support for all 3 forms of client method: synchronous, polling and async callback
+     */
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+
+        if (Object.class == method.getDeclaringClass()) {
+            return invokeObjectMethod(method, args);
+        }
+ 
+        // force the bind of the reference so that we can look at the 
+        // target contract to see if it's asynchronous 
+        source.getInvocationChains();
+
+        if (isAsyncCallback(method)) {
+            return doInvokeAsyncCallback(proxy, method, args);
+        } else if (isAsyncPoll(method)) {
+            return doInvokeAsyncPoll(proxy, method, args);
+        } else {
+            // Regular synchronous method call
+            return doInvokeSync(proxy, method, args);
+        }
+    }
+
+    /**
+     * Indicates if a supplied method has the form of an async callback method
+     * @param method - the method
+     * @return - true if the method has the form of an async callback
+     */
+    protected boolean isAsyncCallback(Method method) {
+        if (method.getName().endsWith("Async") && (method.getReturnType() == Future.class)) {
+            if (method.getParameterTypes().length > 0) {
+                return method.getParameterTypes()[method.getParameterTypes().length - 1] == AsyncHandler.class;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Indicates is a supplied method has the form of an async polling method
+     * @param method - the method
+     * @return - true if the method has the form of an async polling method
+     */
+    protected boolean isAsyncPoll(Method method) {
+        return method.getName().endsWith("Async") && (method.getReturnType() == Response.class);
+    }
+
+    /**
+     * Invoke an async polling method
+     * @param proxy - the reference proxy
+     * @param asyncMethod - the async method to invoke
+     * @param args - array of input arguments to the method
+     * @return - the Response<?> object that is returned to the client application, typed by the 
+     *           type of the response
+     */
+    @SuppressWarnings("unchecked")
+    protected Response doInvokeAsyncPoll(Object proxy, Method asyncMethod, Object[] args) {
+        Method method = getNonAsyncMethod(asyncMethod);
+        Class<?> returnType = method.getReturnType();
+        // Allocate the Future<?> / Response<?> object - note: Response<?> is a subclass of Future<?>
+        AsyncInvocationFutureImpl future = AsyncInvocationFutureImpl.newInstance(returnType, getInterfaceClassloader());
+        try {
+            invokeAsync(proxy, method, args, future, asyncMethod);
+        } catch (Exception e) {
+            future.setWrappedFault(new AsyncFaultWrapper(e));
+        } catch (Throwable t) {
+            Exception e =
+                new ServiceRuntimeException("Received Throwable: " + t.getClass().getName()
+                    + " when invoking: "
+                    + asyncMethod.getName(), t);
+            future.setWrappedFault(new AsyncFaultWrapper(e));
+        } // end try 
+        return future;
+    } // end method doInvokeAsyncPoll
+
+    /**
+     * Provide a synchronous invocation of a service operation that is either synchronous or asynchronous
+     * @return
+     */
+    protected Object doInvokeSync(Object proxy, Method method, Object[] args) throws Throwable {
+        if (isAsyncInvocation(source)) {
+            // Target service is asynchronous
+            Class<?> returnType = method.getReturnType();
+            AsyncInvocationFutureImpl future =
+                AsyncInvocationFutureImpl.newInstance(returnType, getInterfaceClassloader());
+            invokeAsync(proxy, method, args, future, method);
+            // Wait for some maximum time for the result - 1000 seconds here
+            // Really, if the service is async, the client should use async client methods to invoke the service
+            // - and be prepared to wait a *really* long time
+            Object response = null;
+            try {
+                response = future.get(1000, TimeUnit.SECONDS);
+            } catch (ExecutionException ex) {
+                throw ex.getCause();
+            }
+            return response;
+        } else {
+            // Target service is not asynchronous, so perform sync invocation
+            return super.invoke(proxy, method, args);
+        } // end if
+    } // end method doInvokeSync
+
+    /**
+     * Invoke an async callback method - note that this form of the async client API has as its final parameter
+     * an AsyncHandler method, used for callbacks to the client code
+     * @param proxy - the reference proxy
+     * @param asyncMethod - the async method to invoke
+     * @param args - array of input arguments to the method
+     * @return - the Future<?> object that is returned to the client application, typed by the type of
+     *           the response
+     */
+    @SuppressWarnings("unchecked")
+    private Object doInvokeAsyncCallback(final Object proxy, final Method asyncMethod, final Object[] args)
+        throws Exception {
+        Future<Response> future = theExecutor.submit(new Callable<Response>() {
+
+            @Override
+            public Response call() {
+                AsyncHandler handler = (AsyncHandler)args[args.length - 1];
+                Response response = doInvokeAsyncPoll(proxy, asyncMethod, Arrays.copyOf(args, args.length - 1));
+                // Invoke the callback handler, if present
+                if (handler != null) {
+                    handler.handleResponse(response);
+                } // end if
+                return response;
+            }
+        });
+        return future.get();
+
+    } // end method doInvokeAsyncCallback
+
+    /**
+     * Invoke the target (synchronous) method asynchronously 
+     * @param proxy - the reference proxy object
+     * @param method - the method to invoke
+     * @param args - arguments for the call
+     * @param future - Future for handling the response
+     * @return - returns the response from the invocation
+     * @throws Throwable - if an exception is thrown during the invocation
+     */
+    @SuppressWarnings("unchecked")
+    private void invokeAsync(Object proxy, 
+                             Method method,
+                             Object[] args,
+                             AsyncInvocationFutureImpl<?> future,
+                             Method asyncMethod) throws Throwable {
+        if (source == null) {
+            throw new ServiceRuntimeException("No runtime source is available");
+        }
+
+        if (source instanceof RuntimeEndpointReference) {
+            RuntimeEndpointReference epr = (RuntimeEndpointReference)source;
+            if (epr.isOutOfDate()) {
+                epr.rebuild();
+                chains.clear();
+            }
+        } // end if
+
+        InvocationChain chain = getInvocationChain(method, source);
+
+        if (chain == null) {
+            throw new IllegalArgumentException("No matching operation is found: " + method);
+        }
+
+        // Organize for an async service
+        RuntimeEndpoint theEndpoint = getAsyncCallback(source);
+        boolean isAsyncService = false;
+        if (theEndpoint != null) {
+            // ... the service is asynchronous but binding does not support async natively ...
+            attachFuture(theEndpoint, future);
+        } // end if
+        
+        if( isAsyncInvocation((RuntimeEndpointReference)source ) ) { 
+        	isAsyncService = true; 
+        	// Get hold of the JavaAsyncResponseHandler from the chain dealing with the async response
+        	Invoker theInvoker = chain.getHeadInvoker();
+        	if( theInvoker instanceof InterceptorAsync ) {
+        		InvokerAsyncResponse responseInvoker = ((InterceptorAsync)theInvoker).getPrevious();
+        		if( responseInvoker instanceof JDKAsyncResponseInvoker ) {
+        			// Register the future as the response object with its ID
+        			((JDKAsyncResponseInvoker)responseInvoker).registerAsyncResponse(future.getUniqueID(), future);
+        		} // end if
+        	} // end if      	        	
+        } // end if   
+
+        // Perform the invocations on separate thread...
+        theExecutor.submit(new separateThreadInvoker(chain, args, source, future, asyncMethod, isAsyncService));
+
+        return;
+    } // end method invokeAsync
+
+    /**
+     * An inner class which acts as a runnable task for invoking services asynchronously on threads that are separate from
+     * those used to execute operations of components
+     * 
+     * This supports both synchronous services and asynchronous services
+     */
+    private class separateThreadInvoker implements Runnable {
+
+        private AsyncInvocationFutureImpl future;
+        private Method asyncMethod;
+        private InvocationChain chain;
+        private Object[] args;
+        private Invocable invocable;
+        private boolean isAsyncService;
+
+        public separateThreadInvoker(InvocationChain chain,
+                                     Object[] args,
+                                     Invocable invocable,
+                                     AsyncInvocationFutureImpl future,
+                                     Method asyncMethod,
+                                     boolean isAsyncService) {
+            super();
+            this.chain = chain;
+            this.asyncMethod = asyncMethod;
+            this.args = args;
+            this.invocable = invocable;
+            this.future = future;
+            this.isAsyncService = isAsyncService;
+        } // end constructor
+
+        public void run() {
+            Object result;
+
+            try {
+                if (isAsyncService) {
+                	if( supportsNativeAsync(invocable) ) {
+                		// Binding supports native async invocations
+                		invokeAsync(chain, args, invocable, future.getUniqueID());
+                	} else {
+                		// Binding does not support native async invocations
+                		invoke(asyncMethod, chain, args, invocable, future.getUniqueID());
+                	} // end if
+                    // The result is returned asynchronously via the future...
+                } else {
+                    // ... the service is synchronous ...
+                    result = invoke(asyncMethod, chain, args, invocable);
+                    Type type = null;
+                    if (asyncMethod.getReturnType() == Future.class) {
+                        // For callback async method, where a Future is returned
+                        Type[] types = asyncMethod.getGenericParameterTypes();
+                        if (types.length > 0 && asyncMethod.getParameterTypes()[types.length - 1] == AsyncHandler.class) {
+                            // Last parameter is AsyncHandler<T>
+                            type = types[types.length - 1];
+                        } // end if
+                    } else if (asyncMethod.getReturnType() == Response.class) {
+                        // For the polling method, Response<T>
+                        type = asyncMethod.getGenericReturnType();
+                    } // end if 
+                    if (type instanceof ParameterizedType) {
+                        // Check if the parameterized type of Response<T> is a doc-lit-wrapper class
+                        Class<?> wrapperClass = (Class<?>)((ParameterizedType)type).getActualTypeArguments()[0];
+                        WrapperInfo wrapperInfo = chain.getSourceOperation().getWrapper();
+                        if (wrapperInfo != null && wrapperInfo.getOutputWrapperClass() == wrapperClass) {
+                            Object wrapper = wrapperClass.newInstance();
+                            // Find the 1st matching property
+                            for (PropertyDescriptor p : Introspector.getBeanInfo(wrapperClass).getPropertyDescriptors()) {
+                                if (p.getWriteMethod() == null) {
+                                    // There is a "class" property ...
+                                    continue;
+                                } // end if
+                                if (p.getWriteMethod().getParameterTypes()[0].isInstance(result)) {
+                                    p.getWriteMethod().invoke(wrapper, result);
+                                    result = wrapper;
+                                    break;
+                                } // end if 
+                            } // end for
+                        } // end if
+                    } // end if
+                    future.setResponse(result);
+                } // end if
+            } catch (ServiceRuntimeException s) {
+                Throwable e = s.getCause();
+                if (e != null && e instanceof FaultException) {
+                    if ("AsyncResponse".equals(e.getMessage())) {
+                        // Do nothing...
+                    } else {
+                        future.setWrappedFault(new AsyncFaultWrapper(s));
+                    } // end if 
+                } // end if
+            } catch (AsyncResponseException ar) {
+                // This exception is received in the case where the Binding does not support async invocation
+            	// natively - the initial invocation is effectively synchronous with this exception thrown to
+            	// indicate that the service received the request but will send the response separately - do nothing			
+            } catch (Throwable t) {
+                //System.out.println("Async invoke got exception: " + t.toString());
+                future.setWrappedFault(new AsyncFaultWrapper(t));
+            } // end try
+
+        } // end method run
+
+    } // end class separateThreadInvoker
+
+    /**
+     * Attaches a future to the callback endpoint - so that the Future is triggered when a response is
+     * received from the asynchronous service invocation associated with the Future
+     * @param endpoint - the async callback endpoint
+     * @param future - the async invocation future to attach
+     */
+    private void attachFuture(RuntimeEndpoint endpoint, AsyncInvocationFutureImpl<?> future) {
+        Implementation impl = endpoint.getComponent().getImplementation();
+        AsyncResponseHandlerImpl<?> asyncHandler = (AsyncResponseHandlerImpl<?>)impl;
+        asyncHandler.addFuture(future);
+    } // end method attachFuture
+
+    /**
+     * Perform an async invocation on the reference
+     * @param chain - the chain
+     * @param args - parameters for the invocation
+     * @param invocable - the reference
+     * @param msgID - a message ID
+     */
+    public void invokeAsync(InvocationChain chain, Object[] args, Invocable invocable, String msgID) {
+        Message msg = messageFactory.createMessage();
+        if (invocable instanceof RuntimeEndpointReference) {
+            msg.setFrom((RuntimeEndpointReference)invocable);
+        } // end if
+        if (target != null) {
+            msg.setTo(target);
+        } else if (source instanceof RuntimeEndpointReference) {
+            msg.setTo(((RuntimeEndpointReference)invocable).getTargetEndpoint());
+        } // end if
+        
+        Operation operation = chain.getTargetOperation();
+        msg.setOperation(operation);
+        msg.setBody(args);
+
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        
+        // Deal with header information that needs to be copied from the message context to the new message...
+        transferMessageHeaders( msg, msgContext);
+        
+        ThreadMessageContext.setMessageContext(msg);
+        
+        // If there is a supplied message ID, place its value into the Message Header under "MESSAGE_ID"
+        if( msgID != null ){
+        	msg.getHeaders().put("MESSAGE_ID", msgID);
+        } // end if
+
+        try {
+            // Invoke the reference
+            invocable.invokeAsync(msg);
+            return;
+        } finally {
+            ThreadMessageContext.setMessageContext(msgContext);
+        } // end try
+	} // end method invokeAsync
+
+	/**
+     * Get the async callback endpoint - if not already created, create and start it
+     * @param source - the RuntimeEndpointReference which needs an async callback endpoint
+     * @param future 
+     * @return - the RuntimeEndpoint of the async callback
+     */
+    private RuntimeEndpoint getAsyncCallback(Invocable source) {
+        if (!(source instanceof RuntimeEndpointReference))
+            return null;
+        RuntimeEndpointReference epr = (RuntimeEndpointReference)source;
+        if (!isAsyncInvocation(epr)) return null;
+        
+        // Check to see if the binding supports async invocation natively
+        ReferenceBindingProvider eprProvider = epr.getBindingProvider();
+        if( eprProvider instanceof EndpointReferenceAsyncProvider) {
+        	if( ((EndpointReferenceAsyncProvider)eprProvider).supportsNativeAsync() ) return null;
+        } // end if
+        
+        RuntimeEndpoint endpoint;
+        synchronized (epr) {
+            endpoint = (RuntimeEndpoint)epr.getCallbackEndpoint();
+            // If the async callback endpoint is already created, return it...
+            if (endpoint != null)
+                return endpoint;
+            // Create the endpoint for the async callback
+            endpoint = createAsyncCallbackEndpoint(epr);
+            epr.setCallbackEndpoint(endpoint);
+        } // end synchronized
+
+        // Activate the new callback endpoint
+        startEndpoint(epr.getCompositeContext(), endpoint);
+        endpoint.getInvocationChains();
+
+        return endpoint;
+    } // end method setupAsyncCallback
+
+    /**
+     * Start the callback endpoint
+     * @param compositeContext - the composite context
+     * @param ep - the endpoint to start
+     */
+    private void startEndpoint(CompositeContext compositeContext, RuntimeEndpoint ep) {
+        for (PolicyProvider policyProvider : ep.getPolicyProviders()) {
+            policyProvider.start();
+        } // end for
+
+        final ServiceBindingProvider bindingProvider = ep.getBindingProvider();
+        if (bindingProvider != null) {
+            // Allow bindings to add shutdown hooks. Requires RuntimePermission shutdownHooks in policy.
+            AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                public Object run() {
+                    bindingProvider.start();
+                    return null;
+                }
+            });
+            compositeContext.getEndpointRegistry().addEndpoint(ep);
+        }
+    } // end method startEndpoint
+
+    /**
+     * Create the async callback endpoint for a reference that is going to invoke an asyncInvocation service
+     * @param epr - the RuntimeEndpointReference for which the callback is created
+     * @return - a RuntimeEndpoint representing the callback endpoint
+     */
+    private RuntimeEndpoint createAsyncCallbackEndpoint(RuntimeEndpointReference epr) {
+        CompositeContext compositeContext = epr.getCompositeContext();
+        RuntimeAssemblyFactory assemblyFactory = getAssemblyFactory(compositeContext);
+        RuntimeEndpoint endpoint = (RuntimeEndpoint)assemblyFactory.createEndpoint();
+        endpoint.bind(compositeContext);
+
+        // Create a pseudo-component and pseudo-service 
+        // - need to end with a chain with an invoker into the AsyncCallbackHandler class
+        RuntimeComponent fakeComponent = null;
+        try {
+            fakeComponent = (RuntimeComponent)epr.getComponent().clone();
+            applyImplementation(fakeComponent);
+        } catch (CloneNotSupportedException e2) {
+            // will not happen
+        } // end try
+        endpoint.setComponent(fakeComponent);
+
+        // Create pseudo-service
+        ComponentService service = assemblyFactory.createComponentService();
+        ExtensionPointRegistry registry = compositeContext.getExtensionPointRegistry();
+        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        JavaInterfaceFactory javaInterfaceFactory =
+            (JavaInterfaceFactory)modelFactories.getFactory(JavaInterfaceFactory.class);
+        JavaInterfaceContract interfaceContract = javaInterfaceFactory.createJavaInterfaceContract();
+        try {
+            interfaceContract.setInterface(javaInterfaceFactory.createJavaInterface(AsyncResponseService.class));
+        } catch (InvalidInterfaceException e1) {
+            // Nothing to do here - will not happen
+        } // end try
+        service.setInterfaceContract(interfaceContract);
+        String serviceName = epr.getReference().getName() + "_asyncCallback";
+        service.setName(serviceName);
+        // MJE 06/12/2010 - fixup for JMS binding code which looks at the implementation service
+        // as well as the component service...
+        // Create a pseudo implementation service...
+        Service implService = assemblyFactory.createService();
+        implService.setName(serviceName);
+        implService.setInterfaceContract(interfaceContract);
+        service.setService(implService);
+        //
+        endpoint.setService(service);
+        // Set pseudo-service onto the pseudo-component
+        List<ComponentService> services = fakeComponent.getServices();
+        services.clear();
+        services.add(service);
+
+        // Create a binding
+        Binding binding = createMatchingBinding(epr.getBinding(), fakeComponent, service, registry);
+        endpoint.setBinding(binding);
+
+        // Need to establish policies here (binding has some...)
+        endpoint.getRequiredIntents().addAll(epr.getRequiredIntents());
+        endpoint.getPolicySets().addAll(epr.getPolicySets());
+        String epURI = epr.getComponent().getName() + "#service-binding(" + serviceName + "/" + serviceName + ")";
+        endpoint.setURI(epURI);
+        endpoint.setUnresolved(false);
+        return endpoint;
+    }
+
+    /**
+     * Create a matching binding to a supplied binding
+     * - the matching binding has the same binding type, but is for the supplied component and service
+     * @param matchBinding - the binding to match
+     * @param component - the component 
+     * @param service - the service
+     * @param registry - registry for extensions
+     * @return - the matching binding, or null if it could not be created
+     */
+    @SuppressWarnings("unchecked")
+    private Binding createMatchingBinding(Binding matchBinding,
+                                          RuntimeComponent component,
+                                          ComponentService service,
+                                          ExtensionPointRegistry registry) {
+        // Since there is no simple way to obtain a Factory for a binding where the type is not known ahead of
+        // time, the process followed here is to generate the <binding.xxx/> XML element from the binding type QName
+        // and then read the XML using the processor for that XML...
+        QName bindingName = matchBinding.getType();
+        String bindingXML =
+            "<ns1:" + bindingName.getLocalPart() + " xmlns:ns1='" + bindingName.getNamespaceURI() + "'/>";
+
+        StAXArtifactProcessorExtensionPoint processors =
+            registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+        StAXArtifactProcessor<?> processor = (StAXArtifactProcessor<?>)processors.getProcessor(bindingName);
+
+        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        ValidatingXMLInputFactory inputFactory = modelFactories.getFactory(ValidatingXMLInputFactory.class);
+        StreamSource source = new StreamSource(new StringReader(bindingXML));
+
+        ProcessorContext context = new ProcessorContext();
+        try {
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(source);
+            reader.next();
+            Binding newBinding = (Binding)processor.read(reader, context);
+
+            // Create a URI address for the callback based on the Component_Name/Reference_Name pattern
+            String callbackURI = "/" + component.getName() + "/" + service.getName();
+            newBinding.setURI(callbackURI);
+
+            BuilderExtensionPoint builders = registry.getExtensionPoint(BuilderExtensionPoint.class);
+            BindingBuilder builder = builders.getBindingBuilder(newBinding.getType());
+            if (builder != null) {
+                org.apache.tuscany.sca.assembly.builder.BuilderContext builderContext = new BuilderContext(registry);
+                builder.build(component, service, newBinding, builderContext, true);
+            } // end if
+
+            return newBinding;
+        } catch (ContributionReadException e) {
+            e.printStackTrace();
+        } catch (XMLStreamException e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    } // end method createMatchingBinding
+
+    /**
+     * Gets a RuntimeAssemblyFactory from the CompositeContext
+     * @param compositeContext
+     * @return the RuntimeAssemblyFactory
+     */
+    private RuntimeAssemblyFactory getAssemblyFactory(CompositeContext compositeContext) {
+        ExtensionPointRegistry registry = compositeContext.getExtensionPointRegistry();
+        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        return (RuntimeAssemblyFactory)modelFactories.getFactory(AssemblyFactory.class);
+    } // end method RuntimeAssemblyFactory
+
+    /**
+     * Applies an AsyncResponseHandlerImpl as the implementation of a RuntimeComponent
+     * - the AsyncResponseHandlerImpl acts as both the implementation class and the implementation provider...
+     * @param component - the component
+     */
+    private void applyImplementation(RuntimeComponent component) {
+        AsyncResponseHandlerImpl<?> asyncHandler = new AsyncResponseHandlerImpl<Object>();
+        component.setImplementation(asyncHandler);
+        component.setImplementationProvider(asyncHandler);
+        return;
+    } // end method getImplementationProvider
+
+    private static QName ASYNC_INVOKE = new QName(Constants.SCA11_NS, "asyncInvocation");
+
+    /**
+     * Determines if the service invocation is asynchronous
+     * @param source - the EPR involved in the invocation
+     * @return - true if the invocation is async
+     */
+    private boolean isAsyncInvocation(Invocable source) {
+        if (!(source instanceof RuntimeEndpointReference))
+            return false;
+        RuntimeEndpointReference epr = (RuntimeEndpointReference)source;
+        // First check is to see if the EPR itself has the asyncInvocation intent marked
+        for (Intent intent : epr.getRequiredIntents()) {
+            if (intent.getName().equals(ASYNC_INVOKE))
+                return true;
+        } // end for
+
+        // Second check is to see if the target service has the asyncInvocation intent marked
+        Endpoint ep = epr.getTargetEndpoint();
+        for (Intent intent : ep.getRequiredIntents()) {
+            if (intent.getName().equals(ASYNC_INVOKE))
+                return true;
+        } // end for
+        return false;
+    } // end isAsyncInvocation
+    
+    private boolean supportsNativeAsync(Invocable source) {
+    	if (!(source instanceof RuntimeEndpointReference))
+            return false;
+        RuntimeEndpointReference epr = (RuntimeEndpointReference)source;
+        
+        // TODO - need to update this once BindingProvider interface is refactored to contain
+        // supportsNativeAsync directly...
+        ReferenceBindingProvider provider = epr.getBindingProvider();
+        if( provider instanceof EndpointReferenceAsyncProvider ) {
+        	return ((EndpointReferenceAsyncProvider)provider).supportsNativeAsync();
+        } else {
+        	return false;
+        } // end if
+    } // end method supportsNativeAsync
+
+    /**
+     * Return the synchronous method that is the equivalent of an async method
+     * @param asyncMethod - the async method
+     * @return - the equivalent synchronous method
+     */
+    protected Method getNonAsyncMethod(Method asyncMethod) {
+        String methodName = asyncMethod.getName().substring(0, asyncMethod.getName().length() - 5);
+        for (Method m : businessInterface.getMethods()) {
+            if (methodName.equals(m.getName())) {
+                return m;
+            }
+        }
+        throw new IllegalStateException("No synchronous method matching async method " + asyncMethod.getName());
+    } // end method getNonAsyncMethod
+
+    /**
+     * Gets the classloader of the business interface
+     * @return
+     */
+    private ClassLoader getInterfaceClassloader() {
+        return businessInterface.getClassLoader();
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncResponse.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncResponse.java
new file mode 100644
index 0000000000..7b459f3e7d
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncResponse.java
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import javax.xml.ws.Response;
+
+public class AsyncResponse implements Response {
+
+    private Object response;
+    private boolean isException;
+
+    public AsyncResponse(Object response, boolean isException) {
+        this.response = response;
+        this.isException = isException;
+    }
+    
+    public Map getContext() {
+        return new HashMap();
+    }
+
+    public boolean cancel(boolean mayInterruptIfRunning) {
+        return false;
+    }
+
+    public Object get() throws InterruptedException, ExecutionException {
+        if (isException) {
+            throw new ExecutionException((Throwable)response);
+        } else {
+            return response;
+        }
+    }
+
+    public Object get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
+        return get();
+    }
+
+    public boolean isCancelled() {
+        return false;
+    }
+
+    public boolean isDone() {
+        return true;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncResponseHandlerImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncResponseHandlerImpl.java
new file mode 100644
index 0000000000..9de1809200
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/AsyncResponseHandlerImpl.java
@@ -0,0 +1,197 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.util.List;
+import java.util.concurrent.ConcurrentHashMap;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.core.invocation.AsyncFaultWrapper;
+import org.apache.tuscany.sca.core.invocation.AsyncResponseHandler;
+import org.apache.tuscany.sca.core.invocation.Constants;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.policy.ExtensionType;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+/**
+ * A class intended to form the final link in the chain calling into a Future which represents
+ * the response to an asynchronous service invocation
+ * 
+ * Most methods are dummies, required to fulfil the contracts for ImplementationProvider, Implementation
+ * and Invoker, since this class collapses together the functions of these separate interfaces, due to its
+ * specialized nature, where most of the function will never be used.
+ * 
+ * The class acts as the implementation object that terminates the chain - and also as the provider of the implementation.
+ * The class accepts Future objects which represent individual invocations of forward operations on the async service
+ * and expects that the responses it handles as invocations will carry the unique ID of one of the Future objects in the
+ * message header.  On receipt of each message, the class seeks out the Future with that unique ID and completes the future
+ * either with a response message or with a Fault.
+ *
+ * @param <V>  
+ */
+public class AsyncResponseHandlerImpl<V> implements AsyncResponseHandler<V>,
+		ImplementationProvider, Implementation, Invoker {
+
+	private ConcurrentHashMap< String, AsyncInvocationFutureImpl<?> > table = 
+		new ConcurrentHashMap< String, AsyncInvocationFutureImpl<?> >();
+	
+	/**
+	 * This class is its own invoker...
+	 */
+	public Invoker createInvoker(RuntimeComponentService service,
+			Operation operation) {
+		return this;
+	}
+	
+	/**
+	 * Add a future to this response handler
+	 * @param future - the future
+	 */
+	public void addFuture( AsyncInvocationFutureImpl<?> future ) {
+		// The Future is stored in the table indexed by its unique ID
+		table.put(future.getUniqueID(), future);		
+	} // end method addFuture
+
+	public boolean supportsOneWayInvocation() {
+		return true;
+	}
+
+	public void start() {}
+
+	public void stop() {}
+
+	public List<Operation> getOperations() {
+		return null;
+	}
+
+	public QName getType() {
+		return null;
+	}
+
+	public List<Property> getProperties() {
+		return null;
+	}
+
+	public Property getProperty(String name) {
+		return null;
+	}
+
+	public Reference getReference(String name) {
+		return null;
+	}
+
+	public List<Reference> getReferences() {
+		return null;
+	}
+
+	public Service getService(String name) {
+		return null;
+	}
+
+	public List<Service> getServices() {
+		return null;
+	}
+
+	public String getURI() {
+		return null;
+	}
+
+	public void setURI(String uri) {}
+
+	public boolean isUnresolved() {
+		return false;
+	}
+
+	public void setUnresolved(boolean unresolved) {}
+
+	public ExtensionType getExtensionType() {
+		return null;
+	}
+
+	public List<PolicySet> getPolicySets() {
+		return null;
+	}
+
+	public List<Intent> getRequiredIntents() {
+		return null;
+	}
+
+	public void setExtensionType(ExtensionType type) {}
+
+	public void setWrappedFault(AsyncFaultWrapper e) {}
+	
+	public void setFault(Throwable e) {}
+
+	public void setResponse(V res) { }
+
+	/**
+	 * Method which is the termination for the invocation chain from the callback endpoint
+	 * @param msg - the Tuscany message containing the response from the async service invocation
+	 * which is either the Response message or an exception of some kind
+	 */
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+	public Message invoke(Message msg) {
+		// Get the unique ID from the RELATES_TO message header
+		String idValue = (String)msg.getHeaders().get(Constants.RELATES_TO);
+		
+		if( idValue == null ) { 
+			System.out.println( "Async message ID not found ");
+		} else {
+			// Fetch the Future with that Unique ID
+			AsyncInvocationFutureImpl future = table.get(idValue);
+			if( future == null ) {
+				System.out.println("Future not found for id: " + idValue);
+			} else {	
+				// Complete the Future with a Response message
+				Object payload = msg.getBody();
+				Object response;
+				if( payload == null ) {
+					System.out.println("Returned response message was null");
+				} else {
+		            if (payload.getClass().isArray()) {
+		                response = ((Object[])payload)[0];
+		            } else {
+		                response = payload;
+		            } // end if
+		            if( response.getClass().equals(AsyncFaultWrapper.class)) {
+		            	future.setWrappedFault((AsyncFaultWrapper) response );
+		            } else {
+		            	future.setResponse(response);
+		            } // end if
+				} // end if
+			} // end if
+		} // end if
+		
+		// Prepare an empty response message
+		msg.setBody(null);
+		return msg;
+	} // end method invoke
+
+} // end class 
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/InvocationChainImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/InvocationChainImpl.java
new file mode 100644
index 0000000000..0e4d4344d2
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/InvocationChainImpl.java
@@ -0,0 +1,313 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.ListIterator;
+
+import org.apache.tuscany.sca.core.invocation.InterceptorAsyncImpl;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.DataExchangeSemantics;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.InterceptorAsync;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.InvokerAsyncRequest;
+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.apache.tuscany.sca.invocation.PhasedInterceptor;
+
+/**
+ * Default implementation of an invocation chain
+ * 
+ * @version $Rev$ $Date$
+ */
+public class InvocationChainImpl implements InvocationChain {
+    private Operation sourceOperation;
+    private Operation targetOperation;
+    private List<Node> nodes = new ArrayList<Node>();
+
+    private final PhaseManager phaseManager;
+    private boolean forReference;
+    private boolean allowsPassByReference;
+    private boolean isAsyncInvocation;
+
+    public InvocationChainImpl(Operation sourceOperation, Operation targetOperation, boolean forReference, PhaseManager phaseManager, boolean isAsyncInvocation) {
+        this.targetOperation = targetOperation;
+        this.sourceOperation = sourceOperation;
+        this.forReference = forReference;
+        this.phaseManager = phaseManager;
+        this.isAsyncInvocation = isAsyncInvocation;
+    }
+
+    public Operation getTargetOperation() {
+        return targetOperation;
+    }
+
+    public void setTargetOperation(Operation operation) {
+        this.targetOperation = operation;
+    }
+
+    public void addInterceptor(Interceptor interceptor) {
+        if (interceptor instanceof PhasedInterceptor) {
+            PhasedInterceptor pi = (PhasedInterceptor)interceptor;
+            if (pi.getPhase() != null) {
+                addInvoker(pi.getPhase(), pi);
+                return;
+            }
+        }
+        String phase = forReference ? Phase.REFERENCE : Phase.SERVICE;
+        addInterceptor(phase, interceptor);
+    } // end method addInterceptor
+
+    public void addInvoker(Invoker invoker) {
+        if (invoker instanceof PhasedInterceptor) {
+            PhasedInterceptor pi = (PhasedInterceptor)invoker;
+            if (pi.getPhase() != null) {
+                addInvoker(pi.getPhase(), pi);
+                return;
+            }
+        }
+        String phase = forReference ? Phase.REFERENCE_BINDING : Phase.IMPLEMENTATION;
+        addInvoker(phase, invoker);
+    }
+
+    public Invoker getHeadInvoker() {
+        return nodes.isEmpty() ? null : nodes.get(0).getInvoker();
+    }
+    
+    public Invoker getTailInvoker() {
+    	int nodeCount = nodes.size();
+    	if( nodeCount > 0 ) {
+    		return nodes.get( nodeCount - 1).getInvoker();
+    	} // end if
+    	
+        return null;
+    } // end method getTailInvoker
+    
+    public Invoker getHeadInvoker(String phase) {
+        int index = phaseManager.getAllPhases().indexOf(phase);
+        if (index == -1) {
+            throw new IllegalArgumentException("Invalid phase name: " + phase);
+        }
+        for (Node node : nodes) {
+            if (index <= node.getPhaseIndex()) {
+                return node.getInvoker();
+            }
+        }
+        return null;
+    }
+
+    /**
+     * @return the sourceOperation
+     */
+    public Operation getSourceOperation() {
+        return sourceOperation;
+    }
+
+    /**
+     * @param sourceOperation the sourceOperation to set
+     */
+    public void setSourceOperation(Operation sourceOperation) {
+        this.sourceOperation = sourceOperation;
+    }
+
+    public void addInterceptor(String phase, Interceptor interceptor) {
+        addInvoker(phase, interceptor);
+    }
+
+    private void addInvoker(String phase, Invoker invoker) {
+        if (isAsyncInvocation &&
+            !(invoker instanceof InvokerAsyncRequest) &&
+            !(invoker instanceof InvokerAsyncResponse) ){
+            // TODO - should raise an error but don't want to break
+            //        the existing non-native async support
+/*            
+            throw new IllegalArgumentException("Trying to add synchronous invoker " +
+                                               invoker.getClass().getName() +
+                                               " to asynchronous chain");
+*/                                             
+        }
+        
+        int index = phaseManager.getAllPhases().indexOf(phase);
+        if (index == -1) {
+            throw new IllegalArgumentException("Invalid phase name: " + phase);
+        }
+        Node node = new Node(index, invoker);
+        ListIterator<Node> li = nodes.listIterator();
+        Node before = null, after = null;
+        boolean found = false;
+        while (li.hasNext()) {
+            before = after;
+            after = li.next();
+            if (after.getPhaseIndex() > index) {
+                // Move back
+                li.previous();
+                li.add(node);
+                found = true;
+                break;
+            }
+        }
+        if (!found) {
+            // Add to the end
+            nodes.add(node);
+            before = after;
+            after = null;
+        }
+
+        // Relink the interceptors
+        if (before != null) {
+            if (before.getInvoker() instanceof Interceptor) {
+                ((Interceptor)before.getInvoker()).setNext(invoker);
+                if ((invoker instanceof InterceptorAsync) &&
+                    (before.getInvoker() instanceof InvokerAsyncResponse)) {
+                    ((InterceptorAsync) invoker).setPrevious((InvokerAsyncResponse)before.getInvoker());
+                }
+            }
+        }
+        if (after != null) {
+            if (invoker instanceof Interceptor) {
+                ((Interceptor)invoker).setNext(after.getInvoker());
+                if ((after.getInvoker() instanceof InterceptorAsync) &&
+                    (invoker instanceof InvokerAsyncResponse)){
+                    ((InterceptorAsync) after.getInvoker()).setPrevious((InvokerAsyncResponse)invoker);
+                }
+            }
+        }
+
+    }
+
+    public boolean allowsPassByReference() {
+        if (allowsPassByReference) {
+            // No need to check the invokers
+            return true;
+        }
+        // Check if any of the invokers allows pass-by-reference
+        boolean allowsPBR = false;
+        for (Node i : nodes) {
+            if (i.getInvoker() instanceof DataExchangeSemantics) {
+                if (((DataExchangeSemantics)i.getInvoker()).allowsPassByReference()) {
+                    allowsPBR = true;
+                    break;
+                }
+            }
+        }
+        return allowsPBR;
+    }
+
+    public void setAllowsPassByReference(boolean allowsPBR) {
+        this.allowsPassByReference = allowsPBR;
+    }
+
+    private static class Node {
+        private int phaseIndex;
+        private Invoker invoker;
+
+        public Node(int phaseIndex, Invoker invoker) {
+            super();
+            this.phaseIndex = phaseIndex;
+            this.invoker = invoker;
+        }
+
+        public int getPhaseIndex() {
+            return phaseIndex;
+        }
+
+        public Invoker getInvoker() {
+            return invoker;
+        }
+
+        @Override
+        public String toString() {
+            return "(" + phaseIndex + ")" + invoker;
+        }
+    }
+    
+    public boolean isAsyncInvocation() {
+        return isAsyncInvocation;
+    }
+
+	public void addHeadInterceptor(Interceptor interceptor) {
+		String phase = forReference ? Phase.REFERENCE : Phase.SERVICE_BINDING;
+        if (interceptor instanceof PhasedInterceptor) {
+            PhasedInterceptor pi = (PhasedInterceptor)interceptor;
+            if (pi.getPhase() != null) {
+            	phase = pi.getPhase();
+            } // end if
+        } // end if
+       
+        addHeadInterceptor(phase, interceptor);
+	} // end method addHeadInterceptor
+
+	public void addHeadInterceptor(String phase, Interceptor interceptor) {
+		// TODO Auto-generated method stub
+		Invoker invoker = (Invoker)interceptor;
+		
+        int index = phaseManager.getAllPhases().indexOf(phase);
+        if (index == -1) {
+            throw new IllegalArgumentException("Invalid phase name: " + phase);
+        } // end if 
+        Node node = new Node(index, invoker);
+        
+        ListIterator<Node> li = nodes.listIterator();
+        Node before = null, after = null;
+        boolean found = false;
+        while (li.hasNext()) {
+            before = after;
+            after = li.next();
+            // Look for the first node with a phase index equal to or greater than the one provided
+            if (after.getPhaseIndex() >= index) {
+                // Move back
+                li.previous();
+                li.add(node);
+                found = true;
+                break;
+            }
+        }
+        if (!found) {
+            // Add to the end
+            nodes.add(node);
+            before = after;
+            after = null;
+        }
+
+        // Relink the interceptors
+        if (before != null) {
+            if (before.getInvoker() instanceof Interceptor) {
+                ((Interceptor)before.getInvoker()).setNext(invoker);
+                if ((invoker instanceof InterceptorAsync) &&
+                    (before.getInvoker() instanceof InvokerAsyncResponse)) {
+                    ((InterceptorAsync) invoker).setPrevious((InvokerAsyncResponse)before.getInvoker());
+                }
+            }
+        }
+        if (after != null) {
+            if (invoker instanceof Interceptor) {
+                ((Interceptor)invoker).setNext(after.getInvoker());
+                if ((after.getInvoker() instanceof InterceptorAsync) &&
+                    (invoker instanceof InvokerAsyncResponse)){
+                    ((InterceptorAsync) after.getInvoker()).setPrevious((InvokerAsyncResponse)invoker);
+                }
+            }
+        }
+
+	} // end method addHeadInterceptor
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKCallbackInvocationHandler.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKCallbackInvocationHandler.java
new file mode 100644
index 0000000000..c35b70ad74
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKCallbackInvocationHandler.java
@@ -0,0 +1,150 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.context.ThreadMessageContext;
+import org.apache.tuscany.sca.core.context.impl.CallbackServiceReferenceImpl;
+import org.apache.tuscany.sca.core.invocation.Constants;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Responsible for dispatching to a callback through a wire. <p/> TODO cache
+ * target invoker
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JDKCallbackInvocationHandler extends JDKInvocationHandler {
+    private static final long serialVersionUID = -3350283555825935609L;
+
+    public JDKCallbackInvocationHandler(MessageFactory messageFactory, ServiceReference<?> ref) {
+        super(messageFactory, ref);
+        this.fixedWire = false;
+    }
+
+    @Override
+    @SuppressWarnings( {"unchecked", "rawtypes"})
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+        
+        if (Object.class == method.getDeclaringClass()) {
+            return invokeObjectMethod(method, args);
+        }
+   
+        // obtain a dedicated wire to be used for this callback invocation
+        RuntimeEndpointReference wire = ((CallbackServiceReferenceImpl)callableReference).getCallbackEPR();
+        if (wire == null) {
+            //FIXME: need better exception
+            throw new ServiceRuntimeException("No callback wire found");
+        }
+
+        setEndpoint(((CallbackServiceReferenceImpl)callableReference).getResolvedEndpoint());
+
+        InvocationChain chain = getInvocationChain(method, wire);
+        if (chain == null) {
+            throw new IllegalArgumentException("No matching operation is found: " + method);
+        }
+
+        try {
+        	String msgID = ((CallbackServiceReferenceImpl)callableReference).getMsgID();
+            return invoke(method, chain, args, wire, msgID );
+        } catch (InvocationTargetException e) {
+            Throwable t = e.getCause();
+            throw t;
+        } finally {
+            // allow the cloned wire to be reused by subsequent callbacks
+        }
+    }
+    
+    /**
+     * Invoke the chain
+     * @param chain - the chain
+     * @param args - arguments to the invocation as an array of Objects
+     * @param source - the Endpoint or EndpointReference to which the chain relates
+     * @param msgID - ID of the message to which this invovation is a callback - ID ends up in "RELATES_TO" header
+     * @return - the Response message from the invocation
+     * @throws Throwable - if any exception occurs during the invocation
+     */
+    @Override
+    protected Object invoke(Method method, InvocationChain chain, Object[] args, Invocable source, String msgID)
+                         throws Throwable {
+        Message msg = messageFactory.createMessage();
+        if (source instanceof RuntimeEndpointReference) {
+            msg.setFrom((RuntimeEndpointReference)source);
+        }
+        if (target != null) {
+            msg.setTo(target);
+        } else {
+            if (source instanceof RuntimeEndpointReference) {
+                msg.setTo(((RuntimeEndpointReference)source).getTargetEndpoint());
+            }
+        }
+        Invoker headInvoker = chain.getHeadInvoker();
+        
+        Operation operation = null;
+        if(source instanceof RuntimeEndpoint) {
+            for (InvocationChain c : source.getInvocationChains()) {
+                Operation op = c.getTargetOperation();
+                if (method.getName().equals(op.getName())) {
+                    operation = op;
+                    break;
+                }
+            }
+        } else {
+            operation = chain.getTargetOperation();
+        }
+        msg.setOperation(operation);
+        msg.setBody(args);
+
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        
+        // Deal with header information that needs to be copied from the message context to the new message...
+        transferMessageHeaders( msg, msgContext);
+        
+        ThreadMessageContext.setMessageContext(msg);
+        
+        // If there is a supplied message ID, place its value into the Message Header under "RELATES_TO"
+        if( msgID != null ){
+        	msg.getHeaders().put(Constants.RELATES_TO, msgID);
+        } // end if
+
+        try {
+            // dispatch the source down the chain and get the response
+            Message resp = headInvoker.invoke(msg);
+            Object body = resp.getBody();
+            if (resp.isFault()) {
+                throw (Throwable)body;
+            }
+            return body;
+        } finally {
+            ThreadMessageContext.setMessageContext(msgContext);
+        }
+    } // end method invoke
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKInvocationHandler.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKInvocationHandler.java
new file mode 100644
index 0000000000..41f469cc1b
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKInvocationHandler.java
@@ -0,0 +1,436 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.io.Serializable;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.util.ArrayList;
+import java.util.IdentityHashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.ws.Holder;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.context.ThreadMessageContext;
+import org.apache.tuscany.sca.core.context.ServiceReferenceExt;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.ParameterMode;
+import org.apache.tuscany.sca.interfacedef.java.JavaOperation;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class JDKInvocationHandler implements InvocationHandler, Serializable {
+    private static final long serialVersionUID = -3366410500152201371L;
+
+    protected MessageFactory messageFactory;
+    protected Endpoint target;
+    protected Invocable source;
+    protected ServiceReferenceExt<?> callableReference;
+    protected Class<?> businessInterface;
+
+    protected boolean fixedWire = true;
+
+    protected transient Map<Method, InvocationChain> chains = new IdentityHashMap<Method, InvocationChain>();
+
+    public JDKInvocationHandler(MessageFactory messageFactory, Class<?> businessInterface, Invocable source) {
+        this.messageFactory = messageFactory;
+        this.source = source;
+        this.businessInterface = businessInterface;
+    }
+
+    public JDKInvocationHandler(MessageFactory messageFactory, ServiceReference<?> callableReference) {
+        this.messageFactory = messageFactory;
+        this.callableReference = (ServiceReferenceExt<?>)callableReference;
+        if (callableReference != null) {
+            this.businessInterface = callableReference.getBusinessInterface();
+            this.source = (RuntimeEndpointReference) this.callableReference.getEndpointReference();
+        }
+    }
+
+
+    public Class<?> getBusinessInterface() {
+        return businessInterface;
+    }
+    
+    protected Object getCallbackID() {
+            return null;
+    }
+
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+        if (Object.class == method.getDeclaringClass()) {
+            return invokeObjectMethod(method, args);
+        }
+        if (source == null) {
+            throw new ServiceRuntimeException("No runtime source is available");
+        }
+        
+        if (source instanceof RuntimeEndpointReference) {
+            RuntimeEndpointReference epr = (RuntimeEndpointReference)source;
+            if (epr.isOutOfDate()) {
+                epr.rebuild();
+                chains.clear();
+            }
+        }
+        
+        InvocationChain chain = getInvocationChain(method, source);
+        
+        if (chain == null) {
+            throw new IllegalArgumentException("No matching operation is found: " + method);
+        }        
+
+        // Holder pattern. Items stored in a Holder<T> are promoted to T.
+        // After the invoke, the returned data <T> are placed back in Holder<T>.
+        Object [] promotedArgs = promoteHolderArgs( args ); 
+        
+        // Strip out OUT-only arguments.  Not too sure if the presence
+        // of a sourceOperation is exactly the right check to use to 
+        // know whether or not to do this, but will assume it is until
+        // learning otherwise.
+        Operation sourceOp = chain.getSourceOperation();        
+        if (sourceOp != null) {
+            promotedArgs = removeOutOnlyArgs(sourceOp, promotedArgs );
+        } 
+        
+        Object result = invoke(method, chain, promotedArgs, source);
+        
+        // TODO - Based on the code in JavaInterfaceIntrospectorImpl, it seems there are
+        // some cases involving generics that we're not taking into account.
+        boolean voidReturnType = (void.class == method.getReturnType() ? true : false);
+
+        // Returned Holder data <T> are placed back in Holder<T>.
+        boolean holderPattern = false;
+        Class [] parameters = method.getParameterTypes();
+        if ( parameters != null ) {
+                int resultIdx = (voidReturnType ?  0 : 1);
+        	for ( int i = 0; i < parameters.length; i++ ) {
+        		Class parameterType = parameters[ i ];              
+        		if ( isHolder( parameterType ) ) {
+        			holderPattern = true;
+        			// Pop results and place in holder (demote).
+        			Holder holder = (Holder) args[ i ]; 
+        		
+        			Object[] results = (Object[])result;
+        			if ( result != null ) {
+        				holder.value =  results[resultIdx++]; 
+        			}
+        		}            
+        	}
+        }
+        if (holderPattern && result != null) {
+            if (voidReturnType) {
+                return null;
+            } else {
+                return ((Object[])result)[0];
+            }
+        } else {
+            return result;
+        }
+    }
+
+    /**
+     * Handle the methods on the Object.class
+     * @param method
+     * @param args
+     */
+    protected Object invokeObjectMethod(Method method, Object[] args) throws Throwable {
+        String name = method.getName();
+        if ("toString".equals(name)) {
+            return "[Proxy - " + toString() + "]";
+        } else if ("equals".equals(name)) {
+            Object obj = args[0];
+            if (obj == null) {
+                return false;
+            }
+            if (!Proxy.isProxyClass(obj.getClass())) {
+                return false;
+            }
+            return equals(Proxy.getInvocationHandler(obj));
+        } else if ("hashCode".equals(name)) {
+            return hashCode();
+        } else {
+            return method.invoke(this);
+        }
+    }
+
+    /**
+     * Determines if the given operation matches the given method
+     * 
+     * @return true if the operation matches, false if does not
+     */
+    // FIXME: Should it be in the InterfaceContractMapper?
+    @SuppressWarnings("unchecked")
+    private static boolean match(Operation operation, Method method) {
+        if (operation instanceof JavaOperation) {
+            JavaOperation javaOp = (JavaOperation)operation;
+            Method m = javaOp.getJavaMethod();
+            if (!method.getName().equals(m.getName())) {
+                return false;
+            }
+            if (method.equals(m)) {
+                return true;
+            }
+        } else {
+            if (!method.getName().equals(operation.getName())) {
+                return false;
+            }
+        }
+
+        // For remotable interface, operation is not overloaded. 
+        if (operation.getInterface().isRemotable()) {
+            return true;
+        }
+
+        Class<?>[] params = method.getParameterTypes();
+
+        DataType<List<DataType>> inputType = null;
+        if (operation.isWrapperStyle()) {
+            inputType = operation.getWrapper().getUnwrappedInputType();
+        } else {
+            inputType = operation.getInputType();
+        }
+        List<DataType> types = inputType.getLogical();
+        boolean matched = true;
+        if (types.size() == params.length && method.getName().equals(operation.getName())) {
+            for (int i = 0; i < params.length; i++) {
+                Class<?> clazz = params[i];
+                Class<?> type = types.get(i).getPhysical();
+                // Object.class.isAssignableFrom(int.class) returns false
+                if (type != Object.class && (!type.isAssignableFrom(clazz))) {
+                    matched = false;
+                }
+            }
+        } else {
+            matched = false;
+        }
+        return matched;
+
+    }
+
+    protected synchronized InvocationChain getInvocationChain(Method method, Invocable source) {
+        if (source instanceof RuntimeEndpoint) {
+            // [rfeng] Start with the binding invocation chain
+            return source.getBindingInvocationChain();
+        }
+        if (fixedWire && chains.containsKey(method)) {
+            return chains.get(method);
+        }
+        InvocationChain found = null;
+        for (InvocationChain chain : source.getInvocationChains()) {
+            Operation operation = chain.getSourceOperation();
+            if (operation.isDynamic()) {
+                operation.setName(method.getName());
+                found = chain;
+                break;
+            } else if (match(operation, method)) {
+                found = chain;
+                break;
+            }
+        }
+        if (fixedWire) {
+            chains.put(method, found);
+        }
+        return found;
+    }
+
+    protected void setEndpoint(Endpoint endpoint) {
+        this.target = endpoint;
+    }
+    
+    protected Object invoke(Method method, InvocationChain chain, Object[] args, Invocable source)
+                            throws Throwable {
+    	return invoke( method, chain, args, source, null );
+    }
+
+    /**
+     * Invoke the chain
+     * @param chain - the chain
+     * @param args - arguments to the invocation as an array of Objects
+     * @param source - the Endpoint or EndpointReference to which the chain relates
+     * @param msgID - an ID for the message being sent, may be null
+     * @return - the Response message from the invocation
+     * @throws Throwable - if any exception occurs during the invocation
+     */
+    protected Object invoke(Method method, InvocationChain chain, Object[] args, Invocable source, String msgID)
+                         throws Throwable {
+        Message msg = messageFactory.createMessage();
+        if (source instanceof RuntimeEndpointReference) {
+            msg.setFrom((RuntimeEndpointReference)source);
+        }
+        if (target != null) {
+            msg.setTo(target);
+        } else {
+            if (source instanceof RuntimeEndpointReference) {
+                msg.setTo(((RuntimeEndpointReference)source).getTargetEndpoint());
+            }
+        }
+        Invoker headInvoker = chain.getHeadInvoker();
+        Operation operation = null;
+        if(source instanceof RuntimeEndpoint) {
+            // [rfeng] We cannot use the targetOperation from the binding invocation chain.
+            // For each method, we need to find the matching operation so that we can set the operation on to the message
+            for (InvocationChain c : source.getInvocationChains()) {
+                Operation op = c.getTargetOperation();
+                if (method.getName().equals(op.getName())) {
+                    operation = op;
+                    break;
+                }
+            }
+        } else {
+            operation = chain.getTargetOperation();
+        }
+        msg.setOperation(operation);
+        msg.setBody(args);
+
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        
+        // Deal with header information that needs to be copied from the message context to the new message...
+        transferMessageHeaders( msg, msgContext);
+        
+        ThreadMessageContext.setMessageContext(msg);
+        
+        // If there is a supplied message ID, place its value into the Message Header under "MESSAGE_ID"
+        if( msgID != null ){
+        	msg.getHeaders().put("MESSAGE_ID", msgID);
+        } // end if
+
+        try {
+            // dispatch the source down the chain and get the response
+            Message resp = headInvoker.invoke(msg);
+            Object body = resp.getBody();
+            if (resp.isFault()) {
+                throw (Throwable)body;
+            }
+            return body;
+        } finally {
+            ThreadMessageContext.setMessageContext(msgContext);
+        }
+    }
+    
+    /**
+     * Transfer relevant header information from the old message (incoming) to the new message (outgoing)
+     * @param newMsg
+     * @param oldMsg
+     */
+    protected void transferMessageHeaders( Message newMsg, Message oldMsg ) {
+    	if( oldMsg == null ) return;
+    	// For the present, simply copy all the headers 
+    	if( !oldMsg.getHeaders().isEmpty() ) newMsg.getHeaders().putAll( oldMsg.getHeaders() );
+    } // end transferMessageHeaders
+
+    /**
+     * @return the callableReference
+     */
+    public ServiceReference<?> getCallableReference() {
+        return callableReference;
+    }
+
+    /**
+     * @param callableReference the callableReference to set
+     */
+    public void setCallableReference(ServiceReference<?> callableReference) {
+        this.callableReference = (ServiceReferenceExt<?>)callableReference;
+    }
+            
+    /**
+     * Creates a copy of arguments. Holder<T> values are promoted to T.
+     * Note. It is essential that arg Holders not be destroyed here.
+     * PromotedArgs should not destroy holders. They are used on response return.
+     * @param args containing Holders and other objects.
+     * @return Object [] 
+     */
+    protected static Object [] promoteHolderArgs( Object [] args ) {
+    	if ( args == null )
+    		return args;
+    	Object [] promotedArgs = new Object[ args.length ];
+    	
+    	for ( int i = 0; i < args.length; i++ ) {
+    		Object argument = args[ i ];
+    		if ( argument != null ) {
+    			if ( isHolder( argument ) ) {
+    				promotedArgs[ i ] = ((Holder)argument).value;      
+    			} else {
+    				promotedArgs[ i ] = args[ i ];
+    			}
+                  
+    		}
+    	}
+    	return promotedArgs;
+    }
+    
+    /**
+     * Given an argument array, filters out (removes) OUT-only parameters
+     * @param sourceOp
+     * @return array of filtered arguments
+     */    
+    Object[] removeOutOnlyArgs(Operation sourceOp, Object[] args) {
+        if ( args == null )
+            return args;
+        ArrayList<Object> retValList = new ArrayList<Object>();
+        List<ParameterMode> parmList = sourceOp.getParameterModes();
+        for (int i = 0; i < args.length; i++) {
+            if (parmList.get(i) != ParameterMode.OUT) {
+                retValList.add(args[i]);
+            }
+        }
+        return retValList.toArray();
+    }
+    
+    /**
+     * Given a Class, tells if it is a Holder by comparing to "javax.xml.ws.Holder"
+     * @param testClass
+     * @return boolean whether class is Holder type.
+     */
+    protected static boolean isHolder( Class testClass ) {
+    	if ( testClass.getName().startsWith( "javax.xml.ws.Holder" )) {
+    		return true;
+    	}
+    	return false;        
+    }
+    
+         
+    /**
+     * Given an Object, tells if it is a Holder by comparing to "javax.xml.ws.Holder"
+     * @param testClass
+     * @return boolean stating whether Object is a Holder type.
+     * @author DOB
+     */
+    protected static boolean isHolder( Object object ) {
+    	String objectName = object.getClass().getName();
+    	if ( object instanceof javax.xml.ws.Holder ) {
+    		return true;
+    	}
+    	return false;        
+    }
+        
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKProxyFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKProxyFactory.java
new file mode 100644
index 0000000000..7109dad1fd
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKProxyFactory.java
@@ -0,0 +1,212 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Future;
+
+import javax.xml.ws.AsyncHandler;
+import javax.xml.ws.Response;
+
+import org.apache.tuscany.sca.common.java.collection.LRUCache;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.LifeCycleListener;
+import org.apache.tuscany.sca.core.context.ServiceReferenceExt;
+import org.apache.tuscany.sca.core.context.impl.CallbackServiceReferenceImpl;
+import org.apache.tuscany.sca.core.context.impl.ServiceReferenceImpl;
+import org.apache.tuscany.sca.core.invocation.ProxyCreationException;
+import org.apache.tuscany.sca.core.invocation.ProxyFactory;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * the default implementation of a wire service that uses JDK dynamic proxies
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JDKProxyFactory implements ProxyFactory, LifeCycleListener {
+    protected ExtensionPointRegistry registry;
+    protected InterfaceContractMapper contractMapper;
+    private MessageFactory messageFactory;
+
+    public JDKProxyFactory(ExtensionPointRegistry registry,
+                           MessageFactory messageFactory,
+                           InterfaceContractMapper mapper) {
+        this.registry = registry;
+        this.contractMapper = mapper;
+        this.messageFactory = messageFactory;
+    }
+
+    /** 
+     * The original createProxy method assumes that the proxy doesn't want to 
+     * share conversation state so sets the conversation object to null
+     */
+    public <T> T createProxy(final Class<T> interfaze, Invocable invocable) throws ProxyCreationException {
+        if (invocable instanceof RuntimeEndpoint) {
+            InvocationHandler handler;
+            // TUSCANY-3659 - Always install a asynch handler regardless of whether ref is sync or async  
+            //                needs tidying         
+            //            if (isAsync(interfaze)) {
+            handler = new AsyncJDKInvocationHandler(registry, messageFactory, interfaze, invocable);
+            //            } else {
+            //                handler = new JDKInvocationHandler(messageFactory, interfaze, invocable);
+            //            }
+            // Allow privileged access to class loader. Requires RuntimePermission in security policy.
+            ClassLoader cl = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
+                public ClassLoader run() {
+                    return interfaze.getClassLoader();
+                }
+            });
+            T proxy = interfaze.cast(newProxyInstance(cl, new Class[] {interfaze}, handler));
+            return proxy;
+        }
+        ServiceReference<T> serviceReference = new ServiceReferenceImpl<T>(interfaze, invocable, null);
+        return createProxy(serviceReference);
+    }
+
+    public <T> T createProxy(ServiceReference<T> callableReference) throws ProxyCreationException {
+        assert callableReference != null;
+        final Class<T> interfaze = callableReference.getBusinessInterface();
+        InvocationHandler handler;
+        // TUSCANY-3659 - Always install a asynch handler regardless of whether ref is sync or async
+        //                needs tidying
+        //        if (isAsync(interfaze)) {
+        handler = new AsyncJDKInvocationHandler(registry, messageFactory, callableReference);
+        //        } else {
+        //            handler = new JDKInvocationHandler(messageFactory, callableReference);
+        //        }
+        // Allow privileged access to class loader. Requires RuntimePermission in security policy.
+        ClassLoader cl = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
+            public ClassLoader run() {
+                return interfaze.getClassLoader();
+            }
+        });
+        T proxy = interfaze.cast(newProxyInstance(cl, new Class[] {interfaze}, handler));
+        ((ServiceReferenceExt<T>)callableReference).setProxy(proxy);
+        return proxy;
+    }
+
+    private boolean isAsync(Class<?> interfaze) {
+        for (Method method : interfaze.getMethods()) {
+            if (method.getName().endsWith("Async")) {
+                if (method.getReturnType().isAssignableFrom(Future.class)) {
+                    if (method.getParameterTypes().length > 0) {
+                        if (method.getParameterTypes()[method.getParameterTypes().length - 1]
+                            .isAssignableFrom(AsyncHandler.class)) {
+                            return true;
+                        }
+                    }
+                }
+                if (method.getReturnType().isAssignableFrom(Response.class)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    public <T> T createCallbackProxy(Class<T> interfaze, List<? extends Invocable> wires) throws ProxyCreationException {
+        ServiceReferenceImpl<T> callbackReference = null;
+        try {
+            callbackReference = new CallbackServiceReferenceImpl(interfaze, wires);
+        } catch (ServiceRuntimeException e) {
+            // [rfeng] In case that the call is not from a bidirectional interface, the field should be injected with null
+            callbackReference = null;
+        }
+        return callbackReference != null ? createCallbackProxy(callbackReference) : null;
+    }
+
+    public <T> T createCallbackProxy(ServiceReference<T> callbackReference) throws ProxyCreationException {
+        assert callbackReference != null;
+        Class<T> interfaze = callbackReference.getBusinessInterface();
+        InvocationHandler handler = new JDKCallbackInvocationHandler(messageFactory, callbackReference);
+        ClassLoader cl = interfaze.getClassLoader();
+        T proxy = interfaze.cast(newProxyInstance(cl, new Class[] {interfaze}, handler));
+        ((ServiceReferenceExt<T>)callbackReference).setProxy(proxy);
+        return proxy;
+    }
+
+    public <B, R extends ServiceReference<B>> R cast(B target) throws IllegalArgumentException {
+        InvocationHandler handler = Proxy.getInvocationHandler(target);
+        if (handler instanceof JDKInvocationHandler) {
+            return (R)((JDKInvocationHandler)handler).getCallableReference();
+        } else {
+            throw new IllegalArgumentException("The object is not a known proxy.");
+        }
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.core.invocation.ProxyFactory#isProxyClass(java.lang.Class)
+     */
+    public boolean isProxyClass(Class<?> clazz) {
+        return Proxy.isProxyClass(clazz);
+    }
+
+    // This is a cache containing the proxy class constructor for each business interface.
+    // This improves performance compared to calling Proxy.newProxyInstance()
+    // every time that a proxy is needed.
+    private final LRUCache<Class<?>, Constructor<?>> cache = new LRUCache<Class<?>, Constructor<?>>(512);
+
+    public Object newProxyInstance(ClassLoader classloader, Class<?> interfaces[], InvocationHandler invocationhandler)
+        throws IllegalArgumentException {
+        if (interfaces.length > 1) {
+            // We only cache the proxy constructors with one single interface which the case in SCA where
+            // one reference can have one interface
+            return Proxy.newProxyInstance(classloader, interfaces, invocationhandler);
+        }
+        try {
+            if (invocationhandler == null)
+                throw new NullPointerException("InvocationHandler is null");
+            // Lookup cached constructor.  aclass[0] is the reference's business interface.
+            Constructor<?> proxyCTOR;
+            synchronized (cache) {
+                proxyCTOR = cache.get(interfaces[0]);
+            }
+            if (proxyCTOR == null) {
+                Class<?> proxyClass = Proxy.getProxyClass(classloader, interfaces);
+                proxyCTOR = proxyClass.getConstructor(InvocationHandler.class);
+                synchronized (cache) {
+                    cache.put(interfaces[0], proxyCTOR);
+                }
+            }
+            return proxyCTOR.newInstance(invocationhandler);
+        } catch (Throwable e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    public void start() {
+    }
+
+    public void stop() {
+        cache.clear();
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/MessageFactoryImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/MessageFactoryImpl.java
new file mode 100644
index 0000000000..6f3e947631
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/MessageFactoryImpl.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.io.Serializable;
+
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+
+/**
+ * Implementation of MessageFactory.
+ *
+ * @version $Rev$ $Date$
+ */
+public class MessageFactoryImpl implements MessageFactory, Serializable {
+
+    /**
+	 * 
+	 */
+	private static final long serialVersionUID = -2112289169275106977L;
+
+	public Message createMessage() {
+        return new MessageImpl();
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/MessageImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/MessageImpl.java
new file mode 100644
index 0000000000..cc8cb48cc5
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/MessageImpl.java
@@ -0,0 +1,114 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Message;
+
+/**
+ * The default implementation of a message flowed through a wire during an invocation
+ *
+ * @version $Rev $Date$
+ */
+public class MessageImpl implements Message { 
+    private Map<String, Object> headers = new HashMap<String, Object>();
+    private Object body;
+    private Object messageID;
+    private boolean isFault;
+    private Operation operation;
+
+    private EndpointReference from;
+    private Endpoint to;
+
+    private Object bindingContext;
+
+    public MessageImpl() {
+        this.from = null;
+        this.to = null;
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T> T getBody() {
+        return (T)body;
+    }
+
+    public <T> void setBody(T body) {
+        this.isFault = false;
+        this.body = body;
+    }
+
+    public Object getMessageID() {
+        return messageID;
+    }
+
+    public void setMessageID(Object messageId) {
+        this.messageID = messageId;
+    }
+
+    public boolean isFault() {
+        return isFault;
+    }
+
+    public void setFaultBody(Object fault) {
+        this.isFault = true;
+        this.body = fault;
+    }
+
+    public EndpointReference getFrom() {
+        return from;
+    }
+
+    public void setFrom(EndpointReference from) {
+        this.from = from;
+    }
+
+    public Endpoint getTo() {
+        return to;
+    }
+
+    public void setTo(Endpoint to) {
+        this.to = to;
+    }
+
+    public Operation getOperation() {
+        return operation;
+    }
+
+    public void setOperation(Operation op) {
+        this.operation = op;
+    }
+    
+    public Map<String, Object> getHeaders() {
+        return headers;
+    }    
+
+    @SuppressWarnings("unchecked")
+    public <T> T getBindingContext() {
+        return (T)bindingContext;
+    }
+
+    public <T> void setBindingContext(T bindingContext) {
+        this.bindingContext = bindingContext;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/NoMethodForOperationException.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/NoMethodForOperationException.java
new file mode 100644
index 0000000000..45f4bf52bf
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/NoMethodForOperationException.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import org.apache.tuscany.sca.core.invocation.ProxyCreationException;
+
+
+/**
+ * Thrown when an {@link org.apache.tuscany.sca.core.factory.model.Operation} cannot be mapped to a method on an interface 
+ * @version $Rev$ $Date$
+ */
+public class NoMethodForOperationException extends ProxyCreationException {
+    private static final long serialVersionUID = 5116536602309483679L;
+
+    public NoMethodForOperationException() {
+    }
+
+    public NoMethodForOperationException(String message) {
+        super(message);
+    }
+
+    public NoMethodForOperationException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public NoMethodForOperationException(Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/PhaseManager.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/PhaseManager.java
new file mode 100644
index 0000000000..85ef79b5d7
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/PhaseManager.java
@@ -0,0 +1,313 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import static org.apache.tuscany.sca.invocation.Phase.IMPLEMENTATION;
+import static org.apache.tuscany.sca.invocation.Phase.IMPLEMENTATION_POLICY;
+import static org.apache.tuscany.sca.invocation.Phase.REFERENCE;
+import static org.apache.tuscany.sca.invocation.Phase.REFERENCE_BINDING;
+import static org.apache.tuscany.sca.invocation.Phase.REFERENCE_BINDING_POLICY;
+import static org.apache.tuscany.sca.invocation.Phase.REFERENCE_BINDING_TRANSPORT;
+import static org.apache.tuscany.sca.invocation.Phase.REFERENCE_BINDING_WIREFORMAT;
+import static org.apache.tuscany.sca.invocation.Phase.REFERENCE_INTERFACE;
+import static org.apache.tuscany.sca.invocation.Phase.REFERENCE_POLICY;
+import static org.apache.tuscany.sca.invocation.Phase.SERVICE;
+import static org.apache.tuscany.sca.invocation.Phase.SERVICE_BINDING;
+import static org.apache.tuscany.sca.invocation.Phase.SERVICE_BINDING_OPERATION_SELECTOR;
+import static org.apache.tuscany.sca.invocation.Phase.SERVICE_BINDING_POLICY;
+import static org.apache.tuscany.sca.invocation.Phase.SERVICE_BINDING_TRANSPORT;
+import static org.apache.tuscany.sca.invocation.Phase.SERVICE_BINDING_WIREFORMAT;
+import static org.apache.tuscany.sca.invocation.Phase.SERVICE_INTERFACE;
+import static org.apache.tuscany.sca.invocation.Phase.SERVICE_POLICY;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.StringTokenizer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class PhaseManager {
+    private static final Logger log = Logger.getLogger(PhaseManager.class.getName());
+    
+    public static final String STAGE_REFERENCE = "reference";
+    public static final String STAGE_REFERENCE_BINDING = "reference.binding";
+    public static final String STAGE_SERVICE_BINDING = "service.binding";
+    public static final String STAGE_SERVICE = "service";
+    public static final String STAGE_IMPLEMENTATION = "implementation";
+
+    private static final String[] SYSTEM_REFERENCE_PHASES =
+        {REFERENCE, REFERENCE_POLICY, REFERENCE_INTERFACE, REFERENCE_BINDING};
+
+    private static final String[] SYSTEM_REFERENCE_BINDING_PHASES =
+    {REFERENCE_BINDING_WIREFORMAT, REFERENCE_BINDING_POLICY, REFERENCE_BINDING_TRANSPORT};
+
+    private static final String[] SYSTEM_SERVICE_BINDING_PHASES =
+    {SERVICE_BINDING_TRANSPORT, SERVICE_BINDING_OPERATION_SELECTOR, SERVICE_BINDING_WIREFORMAT, SERVICE_BINDING_POLICY};
+    
+    private static final String[] SYSTEM_SERVICE_PHASES =
+        {SERVICE_BINDING, SERVICE_INTERFACE, SERVICE_POLICY, SERVICE};
+
+    private static final String[] SYSTEM_IMPLEMENTATION_PHASES = {IMPLEMENTATION_POLICY, IMPLEMENTATION};
+
+    private ExtensionPointRegistry registry;
+    private String pattern = Phase.class.getName();
+    private Map<String, Stage> stages;
+    private List<String> phases;
+
+    public class Stage {
+        private String name;
+        private PhaseSorter<String> sorter = new PhaseSorter<String>();
+        private Set<String> firstSet = new HashSet<String>();
+        private Set<String> lastSet = new HashSet<String>();
+        private List<String> phases = new ArrayList<String>();
+
+        public Stage(String name) {
+            super();
+            this.name = name;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public PhaseSorter<String> getSorter() {
+            return sorter;
+        }
+
+        public Set<String> getFirstSet() {
+            return firstSet;
+        }
+
+        public Set<String> getLastSet() {
+            return lastSet;
+        }
+
+        public List<String> getPhases() {
+            return phases;
+        }
+
+        @Override
+        public String toString() {
+            return name + phases;
+        }
+    }
+    
+    /**
+     * @param registry
+     */
+    public PhaseManager(ExtensionPointRegistry registry) {
+        super();
+        this.registry = registry;
+    }
+    
+    public static PhaseManager getInstance(ExtensionPointRegistry registry) {
+        UtilityExtensionPoint utilityExtensionPoint = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        return utilityExtensionPoint.getUtility(PhaseManager.class);
+    }
+    
+    // For unit test purpose
+    PhaseManager(String pattern) {
+        super();
+        this.pattern = pattern;
+        this.registry = new DefaultExtensionPointRegistry();
+    }
+
+    private List<String> getPhases(String stage) {
+        Stage s = getStages().get(stage);
+        return s == null ? null : s.getPhases();
+    }
+
+    public List<String> getReferencePhases() {
+        return getPhases(STAGE_REFERENCE);
+    }
+
+    public List<String> getServicePhases() {
+        return getPhases(STAGE_SERVICE);
+    }
+
+    public List<String> getReferenceBindingPhases() {
+        return getPhases(STAGE_REFERENCE_BINDING);
+    }
+
+    public List<String> getServiceBindingPhases() {
+        return getPhases(STAGE_SERVICE_BINDING);
+    }
+    
+    public List<String> getImplementationPhases() {
+        return getPhases(STAGE_IMPLEMENTATION);
+    }
+
+    public synchronized List<String> getAllPhases() {
+        if (phases == null) {
+            phases = new ArrayList<String>();
+            phases.addAll(getReferencePhases());
+            phases.addAll(getReferenceBindingPhases());
+            phases.addAll(getServiceBindingPhases());
+            phases.addAll(getServicePhases());
+            phases.addAll(getImplementationPhases());
+        }
+        return phases;
+    }
+
+    public synchronized Map<String, Stage> getStages() {
+        if (stages != null) {
+            return stages;
+        }
+        init();
+
+        Collection<ServiceDeclaration> services;
+        try {
+            services = registry.getServiceDiscovery().getServiceDeclarations(pattern);
+        } catch (IOException e) {
+            throw new ServiceRuntimeException(e);
+        }
+
+        for (ServiceDeclaration d : services) {
+            if (log.isLoggable(Level.FINE)) {
+                log.fine(d.getLocation() + ": " + d.getAttributes());
+            }
+            String name = d.getAttributes().get("name");
+            if (name == null) {
+                throw new ServiceRuntimeException("Required attribute 'name' is missing.");
+            }
+            String stageName = d.getAttributes().get("stage");
+            if (stageName == null) {
+                throw new ServiceRuntimeException("Required attribute 'stage' is missing.");
+            }
+            Stage stage = stages.get(stageName);
+            if (stage == null) {
+                throw new ServiceRuntimeException("Invalid stage: " + stageName);
+            }
+            PhaseSorter<String> graph = stage.getSorter();
+            Set<String> firstSet = stage.getFirstSet(), lastSet = stage.getLastSet();
+
+            String before = d.getAttributes().get("before");
+            String after = d.getAttributes().get("after");
+            if (before != null) {
+                StringTokenizer tokenizer = new StringTokenizer(before);
+                while (tokenizer.hasMoreTokens()) {
+                    String p = tokenizer.nextToken();
+                    if (!"*".equals(p)) {
+                        graph.addEdge(name, p);
+                    } else {
+                        firstSet.add(name);
+                    }
+                }
+            }
+            if (after != null) {
+                StringTokenizer tokenizer = new StringTokenizer(after);
+                while (tokenizer.hasMoreTokens()) {
+                    String p = tokenizer.nextToken();
+                    if (!"*".equals(p)) {
+                        graph.addEdge(p, name);
+                    } else {
+                        lastSet.add(name);
+                    }
+                }
+            }
+            graph.addVertext(name);
+            if(firstSet.size()>1) {
+                log.warning("More than one phases are declared to be first: "+firstSet);
+            }
+            for (String s : firstSet) {
+                for (String v : new HashSet<String>(graph.getVertices().keySet())) {
+                    if (!firstSet.contains(v)) {
+                        graph.addEdge(s, v);
+                    }
+                }
+            }
+            if(lastSet.size()>1) {
+                log.warning("More than one phases are declared to be the last: "+lastSet);
+            }
+            for (String s : lastSet) {
+                for (String v : new HashSet<String>(graph.getVertices().keySet())) {
+                    if (!lastSet.contains(v)) {
+                        graph.addEdge(v, s);
+                    }
+                }
+            }
+
+        }
+
+        for (Stage s : stages.values()) {
+            List<String> phases = s.getSorter().topologicalSort(false);
+            s.getPhases().clear();
+            s.getPhases().addAll(phases);
+        }
+        if (log.isLoggable(Level.FINE)) {
+            log.fine("Stages: " + stages);
+        }
+        return stages;
+    }
+
+    private void init() {
+        stages = new HashMap<String, Stage>();
+
+        Stage referenceStage = new Stage(STAGE_REFERENCE);
+        for (int i = 1; i < SYSTEM_REFERENCE_PHASES.length; i++) {
+            referenceStage.getSorter().addEdge(SYSTEM_REFERENCE_PHASES[i - 1], SYSTEM_REFERENCE_PHASES[i]);
+        }
+        referenceStage.getLastSet().add(REFERENCE_BINDING);
+        stages.put(referenceStage.getName(), referenceStage);
+
+        Stage referenceBindingStage = new Stage(STAGE_REFERENCE_BINDING);
+        for (int i = 1; i < SYSTEM_REFERENCE_BINDING_PHASES.length; i++) {
+            referenceBindingStage.getSorter().addEdge(SYSTEM_REFERENCE_BINDING_PHASES[i - 1], SYSTEM_REFERENCE_BINDING_PHASES[i]);
+        }
+        stages.put(referenceBindingStage.getName(), referenceBindingStage);
+        
+        Stage serviceBindingStage = new Stage(STAGE_SERVICE_BINDING);
+        for (int i = 1; i < SYSTEM_SERVICE_BINDING_PHASES.length; i++) {
+            serviceBindingStage.getSorter().addEdge(SYSTEM_SERVICE_BINDING_PHASES[i - 1], SYSTEM_SERVICE_BINDING_PHASES[i]);
+        }
+        stages.put(serviceBindingStage.getName(), serviceBindingStage);
+        
+        
+        Stage serviceStage = new Stage(STAGE_SERVICE);
+        for (int i = 1; i < SYSTEM_SERVICE_PHASES.length; i++) {
+            serviceStage.getSorter().addEdge(SYSTEM_SERVICE_PHASES[i - 1], SYSTEM_SERVICE_PHASES[i]);
+        }
+        stages.put(serviceStage.getName(), serviceStage);
+
+        Stage implementationStage = new Stage(STAGE_IMPLEMENTATION);
+        for (int i = 1; i < SYSTEM_IMPLEMENTATION_PHASES.length; i++) {
+            implementationStage.getSorter().addEdge(SYSTEM_IMPLEMENTATION_PHASES[i - 1],
+                                                    SYSTEM_IMPLEMENTATION_PHASES[i]);
+        }
+        implementationStage.getLastSet().add(IMPLEMENTATION);
+        stages.put(implementationStage.getName(), implementationStage);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/PhaseSorter.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/PhaseSorter.java
new file mode 100644
index 0000000000..175f3463ad
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/PhaseSorter.java
@@ -0,0 +1,236 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Directed, weighted graph
+ * 
+ * @param <V> The type of vertex object
+ * @param <E> The type of edge object
+ *
+ * @version $Rev$ $Date$
+ */
+public class PhaseSorter<V> implements Cloneable {
+    private final Map<V, Vertex> vertices = new HashMap<V, Vertex>();
+
+    /**
+     * Vertex of a graph
+     */
+    public final class Vertex {
+        private V value;
+
+        // TODO: Do we want to support multiple edges for a vertex pair? If so,
+        // we should use a List instead of Map
+        private Map<Vertex, Edge> outEdges = new HashMap<Vertex, Edge>();
+        private Map<Vertex, Edge> inEdges = new HashMap<Vertex, Edge>();
+
+        private Vertex(V value) {
+            this.value = value;
+        }
+
+        @Override
+        public String toString() {
+            return "(" + value + ")";
+        }
+
+        public V getValue() {
+            return value;
+        }
+
+        public Map<Vertex, Edge> getOutEdges() {
+            return outEdges;
+        }
+
+        public Map<Vertex, Edge> getInEdges() {
+            return inEdges;
+        }
+
+    }
+
+    /**
+     * An Edge connects two vertices in one direction
+     */
+    public final class Edge {
+        private Vertex sourceVertex;
+
+        private Vertex targetVertex;
+
+        public Edge(Vertex source, Vertex target) {
+            this.sourceVertex = source;
+            this.targetVertex = target;
+        }
+
+        @Override
+        public String toString() {
+            return sourceVertex + "->" + targetVertex;
+        }
+
+        public Vertex getTargetVertex() {
+            return targetVertex;
+        }
+
+        public void setTargetVertex(Vertex vertex) {
+            this.targetVertex = vertex;
+        }
+
+        public Vertex getSourceVertex() {
+            return sourceVertex;
+        }
+
+        public void setSourceVertex(Vertex sourceVertex) {
+            this.sourceVertex = sourceVertex;
+        }
+    }
+
+    public void addEdge(V source, V target) {
+        Vertex s = getVertex(source);
+        if (s == null) {
+            s = new Vertex(source);
+            vertices.put(source, s);
+        }
+        Vertex t = getVertex(target);
+        if (t == null) {
+            t = new Vertex(target);
+            vertices.put(target, t);
+        }
+        Edge edge = new Edge(s, t);
+        s.outEdges.put(t, edge);
+        t.inEdges.put(s, edge);
+    }
+
+    public void addVertext(V source) {
+        Vertex s = getVertex(source);
+        if (s == null) {
+            s = new Vertex(source);
+            vertices.put(source, s);
+        }
+    }
+
+    public Vertex getVertex(V source) {
+        Vertex s = vertices.get(source);
+        return s;
+    }
+
+    public boolean removeEdge(V source, V target) {
+        Vertex s = getVertex(source);
+        if (s == null) {
+            return false;
+        }
+
+        Vertex t = getVertex(target);
+        if (t == null) {
+            return false;
+        }
+
+        return s.outEdges.remove(t) != null && t.inEdges.remove(s) != null;
+
+    }
+
+    public void removeEdge(Edge edge) {
+        edge.sourceVertex.outEdges.remove(edge.targetVertex);
+        edge.targetVertex.inEdges.remove(edge.sourceVertex);
+    }
+
+    public void removeVertex(Vertex vertex) {
+        vertices.remove(vertex.getValue());
+        for (Edge e : new ArrayList<Edge>(vertex.outEdges.values())) {
+            removeEdge(e);
+        }
+        for (Edge e : new ArrayList<Edge>(vertex.inEdges.values())) {
+            removeEdge(e);
+        }
+    }
+
+    public Edge getEdge(Vertex source, Vertex target) {
+        return source.outEdges.get(target);
+    }
+
+    public Edge getEdge(V source, V target) {
+        Vertex sv = getVertex(source);
+        if (sv == null) {
+            return null;
+        }
+        Vertex tv = getVertex(target);
+        if (tv == null) {
+            return null;
+        }
+        return getEdge(getVertex(source), getVertex(target));
+    }
+
+    @Override
+    public String toString() {
+        StringBuffer sb = new StringBuffer();
+        for (Vertex v : vertices.values()) {
+            sb.append(v.outEdges.values()).append("\n");
+        }
+        return sb.toString();
+    }
+
+    public Map<V, Vertex> getVertices() {
+        return vertices;
+    }
+
+    public void addGraph(PhaseSorter<V> otherGraph) {
+        for (Vertex v : otherGraph.vertices.values()) {
+            for (Edge e : v.outEdges.values()) {
+                addEdge(e.sourceVertex.value, e.targetVertex.value);
+            }
+        }
+    }
+
+    private Vertex getFirst() {
+        for (Vertex v : vertices.values()) {
+            if (v.inEdges.isEmpty()) {
+                return v;
+            }
+        }
+        if (!vertices.isEmpty()) {
+            throw new IllegalArgumentException("Circular ordering has been detected: " + toString());
+        } else {
+            return null;
+        }
+    }
+
+    public List<V> topologicalSort(boolean readOnly) {
+        PhaseSorter<V> graph = (!readOnly) ? this : (PhaseSorter<V>)clone();
+        List<V> list = new ArrayList<V>();
+        while (true) {
+            Vertex v = graph.getFirst();
+            if (v == null) {
+                break;
+            }
+            list.add(v.getValue());
+            graph.removeVertex(v);
+        }
+
+        return list;
+    }
+
+    @Override
+    public Object clone() {
+        PhaseSorter<V> copy = new PhaseSorter<V>();
+        copy.addGraph(this);
+        return copy;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/runtime/impl/EndpointReferenceBinderImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/runtime/impl/EndpointReferenceBinderImpl.java
new file mode 100644
index 0000000000..e14c8287d9
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/runtime/impl/EndpointReferenceBinderImpl.java
@@ -0,0 +1,1001 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.core.runtime.impl;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.logging.Logger;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+import org.apache.tuscany.sca.assembly.SCABinding;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilder;
+import org.apache.tuscany.sca.assembly.builder.BuilderContext;
+import org.apache.tuscany.sca.assembly.builder.BuilderExtensionPoint;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.PolicyBuilder;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointImpl;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointReferenceImpl;
+import org.apache.tuscany.sca.definitions.Definitions;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.interfacedef.util.Audit;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.MonitorFactory;
+import org.apache.tuscany.sca.policy.BindingType;
+import org.apache.tuscany.sca.policy.ExtensionType;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentMap;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.policy.Qualifier;
+import org.apache.tuscany.sca.provider.EndpointReferenceAsyncProvider;
+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
+import org.apache.tuscany.sca.runtime.CompositeActivator;
+import org.apache.tuscany.sca.runtime.DomainRegistry;
+import org.apache.tuscany.sca.runtime.EndpointReferenceBinder;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.apache.tuscany.sca.runtime.UnknownEndpointHandler;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * A builder that takes endpoint references and resolves them. It either finds local
+ * service endpoints if they are available or asks the domain. The main function here
+ * is to perform binding and policy matching.
+ * 
+ * This is a separate from the builders so that the mechanism for reference/service matching 
+ * can be used at runtime as well as build time and can also be replaced independently
+ *
+ * @version $Rev$ $Date$
+ */
+public class EndpointReferenceBinderImpl implements EndpointReferenceBinder {
+    private static final Logger logger = Logger.getLogger(EndpointReferenceBinderImpl.class.getName());
+
+    protected ExtensionPointRegistry extensionPoints;
+    protected AssemblyFactory assemblyFactory;
+    protected InterfaceContractMapper interfaceContractMapper;
+    protected BuilderExtensionPoint builders;
+    protected CompositeActivator compositeActivator;
+    protected Monitor monitor;
+    protected UnknownEndpointHandler unknownEndpointHandler;
+    protected CompositeBuilder policyAppliesToBuilder;
+
+
+    public EndpointReferenceBinderImpl(ExtensionPointRegistry extensionPoints) {
+        this.extensionPoints = extensionPoints;
+
+        FactoryExtensionPoint factories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+        this.assemblyFactory = factories.getFactory(AssemblyFactory.class);
+
+        UtilityExtensionPoint utils = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+        this.interfaceContractMapper = utils.getUtility(InterfaceContractMapper.class);
+        
+        MonitorFactory monitorFactory = utils.getUtility(MonitorFactory.class);
+        monitor = monitorFactory.createMonitor();
+
+        this.unknownEndpointHandler = utils.getUtility(UnknownEndpointHandler.class);
+        
+        this.builders = extensionPoints.getExtensionPoint(BuilderExtensionPoint.class);
+        
+        this.compositeActivator = extensionPoints.getExtensionPoint(CompositeActivator.class);
+    }
+    
+    /**
+     * Bind a single endpoint reference at build time. Here we only expect the
+     * registry to have a record of local endpoints
+     *
+     * @param domainRegistry
+     * @param endpointReference
+     */
+    public void bindBuildTime(DomainRegistry domainRegistry, 
+                              EndpointReference endpointReference, 
+                              BuilderContext builderContext) {
+       bind(domainRegistry, endpointReference, builderContext, false);
+    }
+    
+    /**
+     * Bind a single endpoint reference at run time. Here we expect the
+     * registry to be populated with endpoints from across the domain
+     *
+     * @param domainRegistry
+     * @param endpointReference
+     */
+    public void bindRunTime(DomainRegistry domainRegistry,
+                            EndpointReference endpointReference) {
+        bind(domainRegistry, endpointReference, null, true);
+    }
+    
+    /**
+     * Bind a reference to a service endpoint
+     * 
+     * @param domainRegistry
+     * @param endpointReference
+     * @param runtime set true if called from the runtime 
+     */
+    public void bind(DomainRegistry domainRegistry,  
+                     EndpointReference endpointReference,
+                     BuilderContext builderContext,
+                     boolean runtime){
+        
+        logger.fine("Binding " + endpointReference.toString());
+        
+        Audit matchAudit = new Audit();
+             
+        // This logic does post build autowire matching but isn't actually used at the moment
+        // as problems with dependencies mean we still do this during build
+        if (endpointReference.getStatus() == EndpointReference.Status.AUTOWIRE_PLACEHOLDER){ 
+           
+            // do autowire matching
+            // will only be called at build time at the moment
+            Multiplicity multiplicity = endpointReference.getReference().getMultiplicity();
+            for (Endpoint endpoint : domainRegistry.getEndpoints()){
+//              if (endpoint is in the same composite as endpoint reference){
+                    if ((multiplicity == Multiplicity.ZERO_ONE || 
+                         multiplicity == Multiplicity.ONE_ONE) && 
+                        (endpointReference.getReference().getEndpointReferences().size() > 1)) {
+                        break;
+                    }
+
+                    // Prevent autowire connecting to self
+                    if (endpointReference.getComponent() == 
+                        endpoint.getComponent()) {
+                        continue;
+                    }
+                    
+                    if (haveMatchingPolicy(endpointReference, endpoint, matchAudit, builderContext) &&
+                        haveMatchingInterfaceContracts(endpointReference, endpoint, matchAudit)){
+                        // matching service so find if this reference already has 
+                        // an endpoint reference for this endpoint
+                        Endpoint autowireEndpoint = null;
+                        
+                        for (EndpointReference epr : endpointReference.getReference().getEndpointReferences()){
+                            if (epr.getTargetEndpoint() == endpoint){
+                                autowireEndpoint = endpoint;
+                                break;
+                            }
+                        }
+                        
+                        if (autowireEndpoint == null){
+                            // create new EPR for autowire
+                            EndpointReference autowireEndpointRefrence = null;
+                            try {
+                                autowireEndpointRefrence = (EndpointReference)endpointReference.clone();
+                            } catch (Exception ex){
+                                // won't happen as clone is supported
+                            }
+                            
+                            autowireEndpointRefrence.setTargetEndpoint(endpoint);
+                            autowireEndpointRefrence.setBinding(endpoint.getBinding());
+                            autowireEndpointRefrence.setStatus(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED);
+                            endpointReference.getReference().getEndpointReferences().add(autowireEndpointRefrence);  
+                        }
+                    }
+//              }
+            }
+            
+            if (multiplicity == Multiplicity.ONE_N || multiplicity == Multiplicity.ONE_ONE) {
+                if (endpointReference.getReference().getEndpointReferences().size() == 1) {
+                    Monitor.error(monitor,
+                                  this,
+                                  "endpoint-validation-messages",
+                                  "NoComponentReferenceTarget",
+                                  endpointReference.getReference().getName());
+                    throw new ServiceRuntimeException("Unable to bind " +
+                                                      monitor.getLastProblem().toString());
+                }
+            }
+            
+            setSingleAutoWireTarget(endpointReference.getReference());
+            
+        } else if ( endpointReference.getStatus() == EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED||
+                    endpointReference.getStatus() == EndpointReference.Status.RESOLVED_BINDING ) {
+            // The endpoint reference is already resolved to either
+            // a service endpoint local to this composite or it has
+            // a remote binding
+            
+            // still need to check that the callback endpoint is set correctly
+            if (hasCallback(endpointReference) && 
+                (endpointReference.getCallbackEndpoint() == null 
+                    || endpointReference.getCallbackEndpoint().isUnresolved())) {
+                selectCallbackEndpoint(endpointReference,
+                                       endpointReference.getReference().getCallbackService(),
+                                       matchAudit, 
+                                       builderContext, 
+                                       runtime);
+            } 
+        } else if (endpointReference.getStatus() == EndpointReference.Status.WIRED_TARGET_FOUND_READY_FOR_MATCHING ){
+            // The endpoint reference is already resolved to either
+            // a service endpoint but no binding was specified in the 
+            // target URL and/or the policies have yet to be matched.
+            // Used when $self references are resolved
+            
+            selectForwardEndpoint(endpointReference,
+                                  endpointReference.getTargetEndpoint().getService().getEndpoints(),
+                                  matchAudit,
+                                  builderContext);
+
+            if (hasCallback(endpointReference)){
+                selectCallbackEndpoint(endpointReference,
+                                       endpointReference.getReference().getCallbackService(),
+                                       matchAudit,
+                                       builderContext, 
+                                       runtime);
+            }             
+        } else if (endpointReference.getStatus() == EndpointReference.Status.WIRED_TARGET_IN_BINDING_URI ||
+                   endpointReference.getStatus() == EndpointReference.Status.WIRED_TARGET_NOT_FOUND ||
+                   endpointReference.getStatus() == EndpointReference.Status.NOT_CONFIGURED){
+            // The reference is not yet matched to a service
+          
+            // find the service in the endpoint registry
+            List<Endpoint> endpoints = domainRegistry.findEndpoint(endpointReference);
+            
+            if (endpoints.size() > 0){
+                selectForwardEndpoint(endpointReference,
+                        endpoints,
+                        matchAudit,
+                        builderContext);
+
+                // If the reference was matched try to match the callback
+                if (endpointReference.getStatus().equals(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED) &&
+                    hasCallback(endpointReference)){
+                    selectCallbackEndpoint(endpointReference,
+                                           endpointReference.getReference().getCallbackService(),
+                                           matchAudit,
+                                           builderContext, 
+                                           runtime);
+                } 
+            } else if (runtime) {
+                // tweak to test if this could be a resolved binding. This is the back end of the test
+                // in the builder that pulls the URI out of the binding if there are no targets
+                // on the reference. have to wait until here to see if the binding uri matches any
+                // available services. If not we assume here that it's a resolved binding
+                if (endpointReference.getStatus() == EndpointReference.Status.WIRED_TARGET_IN_BINDING_URI){
+                    endpointReference.getTargetEndpoint().setBinding(endpointReference.getBinding());
+                    endpointReference.setStatus(EndpointReference.Status.RESOLVED_BINDING);
+                } else {
+                    processUnknownEndpoint(endpointReference, matchAudit);
+                    
+                    if (!endpointReference.getStatus().equals(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED)){
+                        Monitor.error(monitor, 
+                                      this, 
+                                      "endpoint-validation-messages", 
+                                      "NoEndpointsFound", 
+                                      endpointReference.toString()); 
+                        throw new ServiceRuntimeException("Unable to bind " + 
+                                                          monitor.getLastProblem().toString());
+                    }
+                }
+            } else {
+                // it's build time so just give the UnknownEndpoint code a chance
+                // without regard for the result
+                processUnknownEndpoint(endpointReference, matchAudit);
+            }
+        } 
+        
+        logger.fine(matchAudit.toString());
+
+        if (endpointReference.getStatus() != EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED &&
+            endpointReference.getStatus() != EndpointReference.Status.RESOLVED_BINDING){
+            
+            if (runtime){
+                Monitor.error(monitor, 
+                              this, 
+                              "endpoint-validation-messages", 
+                              "EndpointReferenceCantBeMatched", 
+                              endpointReference.toString(),
+                              matchAudit);
+                throw new ServiceRuntimeException("Unable to bind " + 
+                                                  monitor.getLastProblem().toString());
+            } else {
+                Monitor.warning(monitor, 
+                                this, 
+                                "endpoint-validation-messages", 
+                                "ComponentReferenceTargetNotFound", 
+                                endpointReference.toString());
+                return;
+            }
+               
+
+        }
+        
+        // Now the endpoint reference is resolved check that the binding interfaces contract
+        // and the reference contract are compatible
+        try {
+            ((RuntimeEndpointReference)endpointReference).validateReferenceInterfaceCompatibility();
+        } catch (ServiceRuntimeException ex) {
+            // don't re-throw this exception at build time just record the
+            // error. If it's thrown here is messes up the order in which
+            // build time errors are reported and that in turn messes
+            // up the output of the compliance tests. 
+            if (runtime){
+                throw ex;
+            } else {
+                Monitor.error(monitor, 
+                        this, 
+                        "endpoint-validation-messages", 
+                        "EndpointReferenceCantBeMatched", 
+                        endpointReference.toString(),
+                        ex.getMessage());
+            }
+        }
+        
+        // TUSCANY-3783
+        // if the reference is an async reference and the binding doesn't support
+        // async natively fluff up the response service/endpoint
+        ReferenceBindingProvider referenceBindingProvider = ((RuntimeEndpointReference)endpointReference).getBindingProvider();
+        if ( referenceBindingProvider instanceof EndpointReferenceAsyncProvider &&
+             !((EndpointReferenceAsyncProvider)referenceBindingProvider).supportsNativeAsync() &&
+             endpointReference.isAsyncInvocation() && 
+             endpointReference.getCallbackEndpoint() == null) {
+            ((RuntimeEndpointReference)endpointReference).createAsyncCallbackEndpoint();
+        }
+    
+        // System.out.println("MATCH AUDIT:" + matchAudit.toString());
+    }       
+        
+    private void processUnknownEndpoint(EndpointReference endpointReference, Audit matchAudit){
+        Binding b = null;
+        if (unknownEndpointHandler != null) {
+            b = unknownEndpointHandler.handleUnknownEndpoint(endpointReference);
+        }
+        if (b != null) {
+            Endpoint matchedEndpoint = new RuntimeEndpointImpl(extensionPoints);
+            matchedEndpoint.setBinding(b);
+            matchedEndpoint.setRemote(true);
+            endpointReference.setTargetEndpoint(matchedEndpoint);
+            endpointReference.setBinding(b);
+            endpointReference.setUnresolved(false);
+            endpointReference.setStatus(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED);
+            matchAudit.append("Match because the UnknownEndpointHandler provided a binding: " + b.getType() + " uri: " + b.getURI());
+            matchAudit.appendSeperator();
+        }
+    }
+   
+    /**
+     * Returns true if the reference has a callback
+     */
+    private boolean hasCallback(EndpointReference endpointReference){
+        if (endpointReference.getReference().getInterfaceContract() == null ||
+            endpointReference.getReference().getInterfaceContract().getCallbackInterface() == null ||
+            endpointReference.getReference().getName().startsWith("$self$.")){
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+    /**
+     * Selects a forward endpoint from a list of possible candidates
+     * 
+     * @param endpointReference
+     * @param endpoints
+     */
+    private void selectForwardEndpoint(EndpointReference endpointReference, List<Endpoint> endpoints, Audit matchAudit, BuilderContext builderContext) {    
+             
+        Endpoint matchedEndpoint = null;
+        
+        if (endpointReference.getReference().getName().startsWith("$self$.")){
+            // just select the first one and don't do any policy matching
+            if (endpointReference.getTargetEndpoint() != null && !endpointReference.getTargetEndpoint().isUnresolved()) {
+                matchedEndpoint = endpointReference.getTargetEndpoint();
+            } else {
+                matchedEndpoint = endpoints.get(0);
+            }
+        } else {
+            // find the first endpoint that matches this endpoint reference
+            for (Endpoint endpoint : endpoints){
+                if (haveMatchingPolicy(endpointReference, endpoint, matchAudit, builderContext) &&
+                    haveMatchingInterfaceContracts(endpointReference, endpoint, matchAudit)){
+                    matchedEndpoint = endpoint;
+                    break;
+                }
+            }
+        }
+        
+        if (matchedEndpoint == null){
+            return;
+        } else {
+            endpointReference.setTargetEndpoint(matchedEndpoint);
+            Binding binding = matchedEndpoint.getBinding();
+            endpointReference.setBinding(binding);
+            // TUSCANY-3873 - add policy from the service
+            //                we don't care about intents at this stage
+            endpointReference.getPolicySets().addAll(matchedEndpoint.getPolicySets());
+            // TODO - we need to re-run the appliesTo processing here but there is some question about what 
+            //        appliesTo means. It's also difficult to get to the PolicyAppliesToBuilder from here and
+            //        need a new EntensionInterface to support access. So for now I'm just cheating and looking to 
+            //        see if the XPath expression contains the binding type as a string while we discuss appliesTo
+            
+            List<PolicySet> psToRemove = new ArrayList<PolicySet>();
+            
+            for (PolicySet ps : endpointReference.getPolicySets() ) {
+                if (!ps.getAppliesTo().contains(endpointReference.getBinding().getType().getLocalPart())){
+                    psToRemove.add(ps);
+                }
+            }
+            
+            endpointReference.getPolicySets().removeAll(psToRemove);
+            
+            build(endpointReference);
+            endpointReference.setStatus(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED);
+            endpointReference.setUnresolved(false);
+        }
+    }
+
+    private void build(EndpointReference endpointReference) {
+        BindingBuilder builder = builders.getBindingBuilder(endpointReference.getBinding().getType());
+        if (builder != null) {
+            builder.build(endpointReference.getComponent(),
+                          endpointReference.getReference(),
+                          endpointReference.getBinding(),
+                          new BuilderContext(extensionPoints),
+                          false);
+        }
+    }
+
+    /**
+     * Selects a callback endpoint from a list of possible candidates
+     * 
+     * @param endpointReference
+     * @param endpoints
+     */
+    private void selectCallbackEndpoint(EndpointReference endpointReference, ComponentService callbackService, Audit matchAudit, BuilderContext builderContext, boolean runtime) {
+      
+        // find the first callback endpoint that matches a callback endpoint reference
+        // at the service
+        RuntimeEndpoint callbackEndpoint = null;
+        match:
+        for ( EndpointReference callbackEndpointReference : endpointReference.getTargetEndpoint().getCallbackEndpointReferences()){
+            for (Endpoint endpoint : callbackService.getEndpoints()){
+                if (haveMatchingPolicy(callbackEndpointReference, endpoint, matchAudit, builderContext) &&
+                    haveMatchingInterfaceContracts(callbackEndpointReference, endpoint, matchAudit)){
+                    callbackEndpoint = (RuntimeEndpoint)endpoint;
+                    break match;
+                }
+            }
+        }
+        
+        // if no callback endpoint was found or if the binding is the SCA binding and it doesn't match 
+        // the forward binding then create a new callback endpoint
+        // TODO - there is a hole here in that the user may explicitly specify an SCA binding for the
+        //        callback that is different from the forward binding. Waiting for feedback form OASIS
+        //        before doing more drastic surgery to fix this corner case as there are other things
+        //        wrong with the default case, such as what to do about policy
+        if (callbackEndpoint == null ||
+            (callbackEndpoint.getBinding().getType().equals(SCABinding.TYPE) &&
+             !endpointReference.getBinding().getType().equals(SCABinding.TYPE))){
+            // no endpoint in place so we need to create one 
+            callbackEndpoint = (RuntimeEndpoint)assemblyFactory.createEndpoint();
+            callbackEndpoint.setComponent(endpointReference.getComponent());
+            callbackEndpoint.setService(callbackService);
+            
+            Binding forwardBinding = endpointReference.getBinding();
+            Binding callbackBinding = null;
+            for (EndpointReference callbackEPR : endpointReference.getTargetEndpoint().getCallbackEndpointReferences()){
+                if (callbackEPR.getBinding().getType().equals(forwardBinding.getType())){
+                    try {
+                        callbackBinding = (Binding)callbackEPR.getBinding().clone();
+                    } catch (CloneNotSupportedException ex){
+                        
+                    }  
+                    break;
+                }
+            }
+            
+            // get the callback binding URI by looking at the SCA binding 
+            // that will have been added at build time
+            callbackBinding.setURI(null);
+            for (Endpoint endpoint : callbackService.getEndpoints()){
+                if (endpoint.getBinding().getType().equals(SCABinding.TYPE)){
+                    callbackBinding.setURI(endpoint.getBinding().getURI());
+                }
+            }
+            
+            callbackEndpoint.setBinding(callbackBinding);
+            callbackService.getBindings().add(callbackBinding);
+            
+            callbackEndpoint.setUnresolved(false);
+            callbackService.getEndpoints().add(callbackEndpoint);
+            
+            // build it
+            build(callbackEndpoint);
+            
+            // Only activate the callback endpoint if the bind is being done at runtime
+            // and hence everything else is running. If we don't activate here then the
+            // endpoint will be activated at the same time as all the other endpoints
+            if (runtime) {
+                // activate it
+                compositeActivator.activate(((RuntimeEndpointReferenceImpl)endpointReference).getCompositeContext(), 
+                                            callbackEndpoint);
+                
+                // start it
+                compositeActivator.start(((RuntimeEndpointReferenceImpl)endpointReference).getCompositeContext(), 
+                                         callbackEndpoint);  
+            }
+        } 
+        
+        endpointReference.setCallbackEndpoint(callbackEndpoint);
+    }
+    
+    private void build(Endpoint endpoint) {
+        
+        BindingBuilder builder = builders.getBindingBuilder(endpoint.getBinding().getType());
+        if (builder != null) {
+            builder.build(endpoint.getComponent(),
+                          endpoint.getService(),
+                          endpoint.getBinding(),
+                          new BuilderContext(extensionPoints), 
+                          true);
+        }
+    }    
+
+    /**
+     * Determine if endpoint reference and endpoint policies match. We know by this stage
+     * that 
+     *   - a given policy set will only contain expressions from a single language
+     *   - a given endpoint or endpoint reference's policy sets will only contain
+     *     expressions from a single language
+     *     
+     * Matching algorithm (read from the top down):
+     *   - FAIL if there are intents that are mutually exclusive between reference and service
+     *   - PASS if there are no intents or policies present at reference and service
+     *   - FAIL if there are unresolved intents (intents with no policy set) at the reference (service should have been checked previously)
+     *          the wrinkle here is that we need to adopt policy from the service if the reference doesn't define a binding
+     *   - PASS if there are no policies at reference and service (now we know all intents are resolved)
+     *   - FAIL if there are some policies on one side but not on the other
+     *   - PASS if the QName of the policy sets on each side match
+     *   - FAIL if the policy languages on both sides are different
+     *   - Perform policy specific match
+     *   
+     */
+    private boolean haveMatchingPolicy(EndpointReference endpointReference, Endpoint endpoint, Audit matchAudit, BuilderContext builderContext){
+        matchAudit.append("Match policy of " + endpointReference.toString() + " to " + endpoint.toString() + " ");
+        
+        List<PolicySet> referencePolicySets = new ArrayList<PolicySet>();
+        Binding binding = null;
+        
+        if (endpointReference.getBinding() == null){
+            binding = endpoint.getBinding();
+        } else {
+            binding = endpointReference.getBinding();
+        }
+        
+        // if there are any intents that are mutually exclusive between 
+        // service and reference then they don't match
+        for (Intent eprIntent : endpointReference.getRequiredIntents()){
+            for (Intent epIntent : endpoint.getRequiredIntents()){ 
+                if (eprIntent.getExcludedIntents().contains(epIntent) ||
+                    epIntent.getExcludedIntents().contains(eprIntent) ||
+                    checkQualifiedMutualExclusion(eprIntent.getExcludedIntents(), epIntent) ||
+                    checkQualifiedMutualExclusion(epIntent.getExcludedIntents(), eprIntent)){
+                    matchAudit.append("No match because the following intents are mutually exclusive " + 
+                                      eprIntent.toString() +
+                                      " " +
+                                      epIntent.toString() +
+                                      " ");
+                    matchAudit.appendSeperator();
+                    return false;
+                }
+            }
+        }
+        
+        // Find the set of policy sets from this reference. This includes 
+        // the policy sets that are specific to the service binding and 
+        // any policy sets that are not binding specific    
+        for (PolicySet policySet : endpointReference.getPolicySets()){
+            PolicyBuilder policyBuilder = null;
+            
+            if (policySet.getPolicies().size() > 0){
+                QName policyType = policySet.getPolicies().get(0).getName();
+                policyBuilder = builders.getPolicyBuilder(policyType);
+            }
+            
+            if ((policyBuilder == null) ||
+                (policyBuilder != null && policyBuilder.getSupportedBindings() == null) ||
+                (policyBuilder != null && policyBuilder.getSupportedBindings().contains(binding.getType()))){
+                referencePolicySets.add(policySet);
+            }
+        }
+        
+        // if there are no policy sets on the reference take the policy sets from the
+        // service binding we are matching against
+        if (referencePolicySets.isEmpty()) {
+            for (PolicySet policySet : endpoint.getPolicySets()){
+                PolicyBuilder policyBuilder = null;
+                
+                if (policySet.getPolicies().size() > 0){
+                    QName policyType = policySet.getPolicies().get(0).getName();
+                    policyBuilder = builders.getPolicyBuilder(policyType);
+                }
+                
+                if ((policyBuilder == null) ||
+                    (policyBuilder != null && policyBuilder.getSupportedBindings() == null) ||
+                    (policyBuilder != null && policyBuilder.getSupportedBindings().contains(binding.getType()))){
+                    referencePolicySets.add(policySet);
+                }
+            }   
+        }
+        
+        // the "appliesTo" algorithm to remove any policy sets that 
+        // don't apply to the service binding will already have been 
+        // run during the build phase
+        
+        // Determine if there are any reference policies
+        boolean noEndpointReferencePolicies = true;
+        
+        for (PolicySet policySet : referencePolicySets){
+            if (policySet.getPolicies().size() > 0){
+                noEndpointReferencePolicies = false;
+                break;
+            }
+        }
+        
+        // Determine of there are any service policies
+        boolean noEndpointPolicies = true;
+        
+        for (PolicySet policySet : endpoint.getPolicySets()){
+            if (policySet.getPolicies().size() > 0){
+                noEndpointPolicies = false;
+                break;
+            }
+        }        
+        
+        // if no policy sets or intents are present then they match
+        if ((endpointReference.getRequiredIntents().size() == 0) &&
+            (endpoint.getRequiredIntents().size() == 0) &&
+            (noEndpointReferencePolicies) &&
+            (noEndpointPolicies)) {
+            matchAudit.append("Match because there are no intents or policies ");
+            matchAudit.appendSeperator();
+            return true;
+        }        
+        
+        // check that the intents on the reference side are resolved 
+        // can't do this until this point as the service binding
+        // may come into play. Intents may be satisfied by the default
+        // or optional intents that the binding type provides. Failing
+        // this they must be satisfied by reference policy sets
+        // Failing this the intent is unresolved and the reference and 
+        // service don't match
+        
+        // TODO - seems that we should do this loop on a binding by binding basis
+        //        rather than each time we do matching
+        BindingType bindingType = null;
+        
+        Definitions systemDefinitions = null;
+        if (builderContext != null){
+            systemDefinitions = builderContext.getDefinitions();
+        } else {
+            systemDefinitions = ((RuntimeEndpoint)endpoint).getCompositeContext().getSystemDefinitions();
+        }
+        
+        for (BindingType loopBindingType : systemDefinitions.getBindingTypes()){
+            if (loopBindingType.getType().equals(binding.getType())){
+                bindingType = loopBindingType;
+                break;
+            }
+        }
+        
+        // Before we start examining intents, remove any whose constrained
+        // types don't include the binding type
+        removeConstrainedIntents(endpointReference, bindingType);
+        
+        List<Intent> eprIntents = new ArrayList<Intent>();
+        eprIntents.addAll(endpointReference.getRequiredIntents());
+        
+        // first check the binding type
+        for (Intent intent : endpointReference.getRequiredIntents()){ 
+            if (bindingType != null && 
+                bindingType.getAlwaysProvidedIntents().contains(intent)){
+                eprIntents.remove(intent);
+            } else if (bindingType != null &&
+                       bindingType.getMayProvidedIntents().contains(intent)){
+                eprIntents.remove(intent);
+            } else {
+               // TODO - this code also appears in the ComponentPolicyBuilder
+               //        so should rationalize
+               loop: for (PolicySet policySet : referencePolicySets){
+                    if (policySet.getProvidedIntents().contains(intent)){
+                        eprIntents.remove(intent);
+                        break;
+                    }
+                    
+                    for (Intent psProvidedIntent : policySet.getProvidedIntents()){
+                        if (isQualifiedBy(psProvidedIntent, intent)){
+                            eprIntents.remove(intent);
+                            break loop;
+                        }
+                    }
+
+                    for (IntentMap map : policySet.getIntentMaps()) {
+                        for (Qualifier q : map.getQualifiers()) {
+                            if (intent.equals(q.getIntent())) {
+                                eprIntents.remove(intent);
+                                break loop;
+                            }
+                        }
+                    }                    
+                }          
+            }                
+        }
+        
+        // if there are unresolved intents the service and reference don't match
+        if (eprIntents.size() > 0){
+            matchAudit.append("No match because there are unresolved intents " + eprIntents.toString() + " ");
+            matchAudit.appendSeperator();
+            return false;
+        }   
+        
+        // if there are no policies on epr or ep side then 
+        // they match
+        if (noEndpointPolicies && noEndpointReferencePolicies){
+            matchAudit.append("Match because the intents are resolved and there are no policy sets ");
+            matchAudit.appendSeperator();
+            return true;
+        }
+        
+        // if there are some policies on one side and not the other then 
+        // the don't match
+        if (noEndpointPolicies && !noEndpointReferencePolicies) {
+            matchAudit.append("No match because there are policy sets at the endpoint reference but not at the endpoint ");
+            matchAudit.appendSeperator();
+            return false;
+        }
+        
+        if (!noEndpointPolicies && noEndpointReferencePolicies){
+            matchAudit.append("No match because there are policy sets at the endpoint but not at the endpoint reference ");
+            matchAudit.appendSeperator();
+            return false;
+        }
+        
+        // If policy set QNames from epr and er match exactly then the reference and 
+        // service policies are compatible
+        Set<PolicySet> referencePolicySet = new HashSet<PolicySet>(referencePolicySets);
+        Set<PolicySet> servicePolicySet = new HashSet<PolicySet>(endpoint.getPolicySets());
+        if(referencePolicySet.equals(servicePolicySet)){
+            matchAudit.append("Match because the policy sets on both sides are eactly the same ");
+            matchAudit.appendSeperator();
+            return true;
+        }
+        
+        // if policy set language at ep and epr are not the same then there is no
+        // match. We get the policy language by looking at the first expression
+        // of the first policy set. By this stage we know that all the policy sets
+        // in an endpoint or endpoint reference will use a single language and we know 
+        // that there is at least one policy set with at least one policy
+        QName eprLanguage = null;
+        
+        for (PolicySet policySet : referencePolicySets){
+            if (policySet.getPolicies().size() > 0){
+                eprLanguage = policySet.getPolicies().get(0).getName();
+                break;
+            }
+        }
+        
+        QName epLanguage = null;
+          
+        for (PolicySet policySet : endpoint.getPolicySets()){
+            if (policySet.getPolicies().size() > 0){
+                epLanguage = policySet.getPolicies().get(0).getName();
+                break;
+            }
+        }
+        
+        if(!eprLanguage.getNamespaceURI().equals(epLanguage.getNamespaceURI())){
+            matchAudit.append("No match because the policy sets on either side have policies in differnt languages " + 
+                              eprLanguage + 
+                              " and " +
+                              epLanguage +
+                              " ");
+            matchAudit.appendSeperator();
+            return false;
+        }
+        
+        // now do a policy specific language match 
+        PolicyBuilder builder = builders.getPolicyBuilder(eprLanguage);
+        boolean match = false;
+        
+        // switch the derived list of policy sets into the reference
+        // it will be left there if there is a match
+        List<PolicySet> originalPolicySets = endpointReference.getPolicySets();
+        endpointReference.getPolicySets().clear();
+        endpointReference.getPolicySets().addAll(referencePolicySets);
+        
+        if (builder != null) {
+            if (builderContext == null){
+                builderContext = new BuilderContext(monitor);
+            }
+            
+            match = builder.build(endpointReference, endpoint, builderContext);
+        } 
+                
+        if (!match){
+            matchAudit.append("No match because the language specific matching failed ");
+            matchAudit.appendSeperator();
+            endpointReference.getPolicySets().clear();
+            endpointReference.getPolicySets().addAll(originalPolicySets);
+        } else {
+            matchAudit.append("Match because the language specific matching succeeded ");
+            matchAudit.appendSeperator();
+        }
+        
+        return match;
+    }
+    
+    // Copied from ComponentPolicyBuilder, should probably be refactored
+    protected void removeConstrainedIntents(EndpointReference subject, BindingType bindingType) {
+        List<Intent> intents = subject.getRequiredIntents();
+        
+        // Remove the intents whose @contrains do not include the current element       
+        if(bindingType != null){
+            List<Intent> copy = new ArrayList<Intent>(intents);
+            for (Intent i : copy) {
+            	List<ExtensionType> constrainedTypes = i.getConstrainedTypes();
+            	if (( constrainedTypes.size() == 0 ) && ( i.getQualifiableIntent() != null ) )  
+            		constrainedTypes = i.getQualifiableIntent().getConstrainedTypes();
+            	
+                if (constrainedTypes.size() > 0){               
+                    boolean constraintFound = false;
+                    for (ExtensionType constrainedType : i.getConstrainedTypes()){
+                        if (constrainedType.getType().equals(bindingType.getType()) ||
+                            constrainedType.getType().equals(bindingType.getBaseType())){
+                            constraintFound = true;
+                            break;
+                        }
+                    }
+                    if(!constraintFound){
+                        intents.remove(i);
+                    }
+                }
+            }
+        }
+    }
+  
+
+	protected boolean isQualifiedBy(Intent qualifiableIntent, Intent qualifiedIntent){
+        if (qualifiedIntent.getQualifiableIntent() == qualifiableIntent){
+            return true;
+        } else {
+            return false;
+        }
+    }
+    
+    protected boolean checkQualifiedMutualExclusion(List<Intent> excludedIntentList, Intent intent){
+        for (Intent excludedIntent : excludedIntentList){
+            if (intent.getQualifiableIntent() != null &&
+                excludedIntent != null &&
+                intent.getQualifiableIntent().equals(excludedIntent)){
+                return true;
+            }
+        }
+        return false;
+    }      
+    
+    /**
+     * Determine if endpoint reference and endpoint interface contracts match 
+     */
+    private boolean haveMatchingInterfaceContracts(EndpointReference endpointReference, Endpoint endpoint, Audit matchAudit){
+        matchAudit.append("Match interface of " + endpointReference.toString() + " to " + endpoint.toString() + " ");
+        
+        InterfaceContract endpointReferenceContract = endpointReference.getReference().getInterfaceContract();
+        InterfaceContract endpointContract = endpoint.getComponentServiceInterfaceContract();
+        
+        if (endpointReferenceContract == null){
+            matchAudit.append("Match because there is no interface contract on the reference ");
+            matchAudit.appendSeperator();
+            return true;
+        }
+        
+        // TODO - is there a better test for this. Would have to cast to the
+        //        correct iface type to get to the resolved flag
+        //        We need to rely on normailzed interfaces in this case!!
+        if (endpointContract.getInterface().getOperations().size() == 0){
+            // the interface contract is likely remote but unresolved
+            // we discussed this on the ML and decided that we could
+            // live with this for the case where there is no central matching of references
+            // to services. Any errors will be detected when the message flows.
+            matchAudit.append("Match because the endpoint is remote and we don't have a copy of it's interface contract ");
+            matchAudit.appendSeperator();
+            return true;
+        }
+        
+        // If the contracts are not of the same type or normalized interfaces are available
+        // use them
+        if (endpointReferenceContract.getClass() != endpointContract.getClass() ||
+            endpointReferenceContract.getNormalizedWSDLContract() != null ||
+             endpointContract.getNormalizedWSDLContract() != null) {
+            endpointReferenceContract = ((RuntimeEndpointReference)endpointReference).getGeneratedWSDLContract(endpointReferenceContract);
+            endpointContract = ((RuntimeEndpoint)endpoint).getGeneratedWSDLContract(endpointContract);
+        }        
+             
+        boolean match = false;
+        match = interfaceContractMapper.isCompatibleSubset(endpointReferenceContract, 
+                                                           endpointContract, 
+                                                           matchAudit);
+        
+        if (!match){
+            matchAudit.append("Match failed because the interface contract mapper failed ");
+        } else {
+            matchAudit.append("Match because the interface contract mapper succeeded ");
+        }
+        
+        matchAudit.appendSeperator();
+        
+        return match;
+    }
+    
+    /**
+     * Checks to see if the registry has been updated since the reference was last matched
+     * 
+     * @return true is the registry has changed
+     */
+    public boolean isOutOfDate(DomainRegistry domainRegistry, EndpointReference endpointReference) {
+        Endpoint te = endpointReference.getTargetEndpoint();
+        if (te != null && !te.isUnresolved()
+            && te.getURI() != null
+            && endpointReference.getStatus() != EndpointReference.Status.RESOLVED_BINDING) {
+            return domainRegistry.isOutOfDate(endpointReference);
+        }
+        return false;
+    }
+
+    /**
+     * ASM_5021: where a <reference/> of a <component/> has @autowire=true 
+     * and where the <reference/> has a <binding/> child element which 
+     * declares a single target service,  the reference is wired only to 
+     * the single service identified by the <wire/> element
+     */    
+    private void setSingleAutoWireTarget(ComponentReference reference) {
+        if (reference.getEndpointReferences().size() > 1 && reference.getBindings() != null
+            && reference.getBindings().size() == 1) {
+            String uri = reference.getBindings().get(0).getURI();
+            if (uri != null) {
+                if (uri.indexOf('/') > -1) {
+                    // TODO: must be a way to avoid this fiddling
+                    int i = uri.indexOf('/');
+                    String c = uri.substring(0, i);
+                    String s = uri.substring(i + 1);
+                    uri = c + "#service(" + s + ")";
+                }
+                for (EndpointReference er : reference.getEndpointReferences()) {
+                    if (er.getTargetEndpoint() != null && uri.equals(er.getTargetEndpoint().getURI())) {
+                        reference.getEndpointReferences().clear();
+                        reference.getEndpointReferences().add(er);
+                        return;
+                    }
+                }
+            }
+        }
+    }
+    
+     
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/runtime/impl/RuntimePropertiesImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/runtime/impl/RuntimePropertiesImpl.java
new file mode 100644
index 0000000000..cd8bc936af
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/runtime/impl/RuntimePropertiesImpl.java
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.runtime.impl;
+
+import java.util.Properties;
+
+import org.apache.tuscany.sca.runtime.RuntimeProperties;
+
+public class RuntimePropertiesImpl implements RuntimeProperties {
+
+    private Properties properties = new Properties();
+
+    public Properties getProperties() {
+        return properties;
+    }
+
+    public void setProperties(Properties properties) {
+        this.properties = properties;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/AbstractScopeContainer.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/AbstractScopeContainer.java
new file mode 100644
index 0000000000..a1bb91faec
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/AbstractScopeContainer.java
@@ -0,0 +1,181 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.scope;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.tuscany.sca.core.factory.InstanceWrapper;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * Implements functionality common to scope contexts.
+ * 
+ * @version $Rev$ $Date$
+ */
+public abstract class AbstractScopeContainer<KEY> implements ScopeContainer<KEY> {
+    protected Map<KEY, InstanceWrapper<?>> wrappers = new ConcurrentHashMap<KEY, InstanceWrapper<?>>();
+    protected final Scope scope;
+
+    protected RuntimeComponent component;
+    protected volatile int lifecycleState = UNINITIALIZED;
+    
+    private static String scopeStateStrings[] = {"CONFIG_ERROR", 
+                                                 "UNINITIALIZED",
+                                                 "INITIALIZING",
+                                                 "INITIALIZED",
+                                                 "NOT USED",
+                                                 "RUNNING",
+                                                 "STOPPING",
+                                                 "STOPPED",
+                                                 "ERROR"};
+    
+    public AbstractScopeContainer(Scope scope, RuntimeComponent component) {
+        this.scope = scope;
+        this.component = component;
+    }
+
+    protected void checkInit() {
+        if (getLifecycleState() != RUNNING) {
+            throw new IllegalStateException("Scope container not running. Current state is [" + 
+                                            scopeStateStrings[getLifecycleState() + 1] + 
+                                            "]");
+        }
+    }
+
+    /**
+     * Creates a new physical instance of a component, wrapped in an
+     * InstanceWrapper.
+     * 
+     * @param component the component whose instance should be created
+     * @return a wrapped instance that has been injected but not yet started
+     * @throws TargetResolutionException if there was a problem creating the
+     *             instance
+     */
+    protected InstanceWrapper createInstanceWrapper() throws TargetResolutionException {
+        ImplementationProvider implementationProvider = component.getImplementationProvider();
+        if (implementationProvider instanceof ScopedImplementationProvider) {
+            return ((ScopedImplementationProvider)implementationProvider).createInstanceWrapper();
+        }
+        return null;
+    }
+
+    public InstanceWrapper getAssociatedWrapper(KEY contextId) throws TargetResolutionException {
+        return getWrapper(contextId); // TODO: what is this method supposed to do diff than getWrapper? 
+    }
+
+    public Scope getScope() {
+        return scope;
+    }
+
+    public InstanceWrapper getWrapper(KEY contextId) throws TargetResolutionException {
+        return wrappers.get(contextId);
+    }
+    
+    public void addWrapperReference(KEY existingContextId, KEY newContextId) 
+      throws TargetResolutionException {
+        // do nothing here. the conversational scope container implements this
+    }
+
+    public void registerWrapper(InstanceWrapper wrapper, KEY contextId) throws TargetResolutionException { 
+        // do nothing here. the conversational scope container implements this
+    }
+
+    protected boolean isEagerInit() {
+        ImplementationProvider implementationProvider = ((RuntimeComponent)component).getImplementationProvider();
+        if (implementationProvider instanceof ScopedImplementationProvider) {
+            return ((ScopedImplementationProvider)implementationProvider).isEagerInit();
+        }
+        return false;
+    }
+
+    public void returnWrapper(InstanceWrapper wrapper, KEY contextId) throws TargetDestructionException {
+    }
+    
+    /**
+     * Default implementation of remove which does nothing 
+     * 
+     * @param contextId the identifier of the context to remove. 
+     */
+    public void remove(KEY contextId) 
+        throws TargetDestructionException {
+    }    
+
+    public synchronized void start() {
+        int lifecycleState = getLifecycleState();
+        if (lifecycleState != UNINITIALIZED && lifecycleState != STOPPED) {
+            throw new IllegalStateException("Scope must be in UNINITIALIZED or STOPPED state but the current state is [" + 
+                                            scopeStateStrings[lifecycleState + 1] + 
+                                            "]. Did you try to start the same node twice?");
+        }
+        setLifecycleState(RUNNING);
+    }
+
+    public void startContext(KEY contextId) {
+        if(isEagerInit()) {
+            try {
+                getWrapper(contextId);
+            } catch (TargetResolutionException e) {
+                // 
+            }
+        }
+    }
+
+    public synchronized void stop() {
+        int lifecycleState = getLifecycleState();
+        if (lifecycleState != RUNNING) {
+            throw new IllegalStateException("Scope in wrong state. Current state is [" + 
+                                            scopeStateStrings[lifecycleState + 1] + 
+                                            "]");
+        }
+        setLifecycleState(STOPPED);
+    }
+
+    public void stopContext(KEY contextId) {
+        wrappers.remove(contextId);
+    }
+
+    @Override
+    public String toString() {
+        return "In state [" + scopeStateStrings[lifecycleState + 1] + ']';
+    }
+
+    public RuntimeComponent getComponent() {
+        return component;
+    }
+
+    public void setComponent(RuntimeComponent component) {
+        this.component = component;
+    }
+
+    public int getLifecycleState() {
+        return lifecycleState;
+    }
+
+    /**
+     * Set the current state of the Lifecycle.
+     *
+     * @param lifecycleState the new state
+     */
+    protected void setLifecycleState(int lifecycleState) {
+        this.lifecycleState = lifecycleState;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/DefaultScopeRegistry.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/DefaultScopeRegistry.java
new file mode 100644
index 0000000000..2ea724ccf6
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/DefaultScopeRegistry.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.scope;
+
+import org.apache.tuscany.sca.core.scope.impl.CompositeScopeContainerFactory;
+import org.apache.tuscany.sca.core.scope.impl.ScopeRegistryImpl;
+import org.apache.tuscany.sca.core.scope.impl.StatelessScopeContainerFactory;
+
+/**
+ * A default scope registry implementation.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultScopeRegistry extends ScopeRegistryImpl implements ScopeRegistry {
+
+    public DefaultScopeRegistry() {
+        ScopeContainerFactory[] factories =
+            new ScopeContainerFactory[] {new CompositeScopeContainerFactory(), new StatelessScopeContainerFactory()};
+        for (ScopeContainerFactory f : factories) {
+            register(f);
+        }
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/Scope.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/Scope.java
new file mode 100644
index 0000000000..35da433af0
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/Scope.java
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.scope;
+
+/**
+ * The default implementation scopes supported by assemblies.
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class Scope {
+    public static final Scope STATELESS = new Scope("STATELESS");
+    public static final Scope COMPOSITE = new Scope("COMPOSITE");
+    public static final Scope INVALID = new Scope("INVALID");
+
+    private String scope;
+
+    public Scope(String scope) {
+        this.scope = scope.toUpperCase().intern();
+    }
+
+    public String getScope() {
+        return scope;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        final Scope scope1 = (Scope) o;
+        return !(scope != null ? scope != scope1.scope.intern() : scope1.scope != null);
+    }
+
+    @Override
+    public int hashCode() {
+        return scope != null ? scope.hashCode() : 0;
+    }
+
+    @Override
+    public String toString() {
+        return scope;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeContainer.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeContainer.java
new file mode 100644
index 0000000000..7d34a0144b
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeContainer.java
@@ -0,0 +1,160 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.scope;
+
+import org.apache.tuscany.sca.core.factory.InstanceWrapper;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+
+/**
+ * Manages the lifecycle and visibility of instances associated with a an {@link RuntimeComponent}.
+ *
+ * @version $Rev$ $Date$
+ * @param <KEY> the type of IDs that this container uses to identify its contexts.
+ * For example, for COMPOSITE scope this could be the URI of the composite component,
+ * or for HTTP Session scope it might be the HTTP session ID.
+ * 
+ * @tuscany.spi.extension.asclient
+ */
+public interface ScopeContainer<KEY> {
+
+    /**
+     * Returns the Scope that this container supports.
+     *
+     * @return the Scope that this container supports
+     */
+    Scope getScope();
+
+    /**
+     * Start a new context with the supplied ID.
+     *
+     * @param contextId an ID that uniquely identifies the context.
+     */
+    void startContext(KEY contextId);
+
+    /**
+     * Stop the context with the supplied ID.
+     *
+     * @param contextId an ID that uniquely identifies the context.
+     */
+    void stopContext(KEY contextId);
+
+    /**
+     * Returns an instance wrapper associated with the current scope context, creating one if necessary
+     * @param contextId the id for the scope context
+     *
+     * @return the wrapper for the target instance
+     * @throws TargetResolutionException if there was a problem instantiating the target instance
+     */
+    InstanceWrapper getWrapper(KEY contextId) throws TargetResolutionException;
+     
+    /**
+     * Allows a component to be registered against more than one context id. This is required in the
+     * case of stateful callbacks where we want to identify the originating client component instance 
+     * as the callback target but we don't want to reuse the clients original conversation id
+     * 
+     * @param existingContextId  an id that identifies an existing component instance
+     * @param newContextId a new id against which this component will also be registered
+     * @throws TargetResolutionException
+     */
+    void addWrapperReference(KEY existingContextId, KEY newContextId) 
+        throws TargetResolutionException;   
+
+    /**
+     * Register an existing instance against a context id.  This is needed
+     * for a stateful callback where the service reference for the forward call
+     * contains a callback object that is not a service reference.
+     * 
+     * @param wrapper the instance wrapper for the instance to be registered
+     * @param contextId the id for the scope context
+     * @throws TargetResolutionException
+     */
+    void registerWrapper(InstanceWrapper wrapper, KEY contextId) 
+        throws TargetResolutionException;   
+
+    /**
+     * Returns an implementation instance associated with the current scope context.
+     * If no instance is found, a {@link TargetNotFoundException} is thrown.
+     * @param contextId the id for the scope context
+     *
+     * @return the wrapper for the target instance
+     * @throws TargetResolutionException if there was a problem instantiating the target instance
+     */
+    InstanceWrapper getAssociatedWrapper(KEY contextId)
+        throws TargetResolutionException;
+
+    /**
+     * Return a wrapper after use (for example, after invoking the instance).
+     * @param wrapper the wrapper for the target instance being returned
+     * @param contextId the id for the scope context
+     *
+     * @throws TargetDestructionException if there was a problem returning the target instance
+     */
+    void returnWrapper(InstanceWrapper wrapper, KEY contextId)
+        throws TargetDestructionException;
+
+    /**
+     * Removes an identified component implementation instance associated with the current 
+     * context from persistent storage
+     *
+     * @param contextId the identifier of the context to remove. 
+     */
+    void remove(KEY contextId) 
+        throws TargetDestructionException;     
+
+    /* A configuration error state */
+    int CONFIG_ERROR = -1;
+    /* Has not been initialized */
+    int UNINITIALIZED = 0;
+    /* In the process of being configured and initialized */
+    int INITIALIZING = 1;
+    /* Instantiated and configured */
+    int INITIALIZED = 2;
+    /* Configured and initialized */
+    int RUNNING = 4;
+    /* In the process of being shutdown */
+    int STOPPING = 5;
+    /* Has been shutdown and removed from the composite */
+    int STOPPED = 6;
+    /* In an error state */
+    int ERROR = 7;
+
+    /**
+     * Returns the lifecycle state
+     *
+     * @see #UNINITIALIZED
+     * @see #INITIALIZING
+     * @see #INITIALIZED
+     * @see #RUNNING
+     * @see #STOPPING
+     * @see #STOPPED
+     */
+    int getLifecycleState();
+
+    /**
+     * Starts the Lifecycle.
+     */
+    void start();
+
+    /**
+     * Stops the Lifecycle.
+     */
+    void stop();
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeContainerFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeContainerFactory.java
new file mode 100644
index 0000000000..b19c14b3e0
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeContainerFactory.java
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.scope;
+
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * Factory to create ScopeContainer for components
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface ScopeContainerFactory {
+    ScopeContainer createScopeContainer(RuntimeComponent component);
+    Scope getScope();
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeRegistry.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeRegistry.java
new file mode 100644
index 0000000000..842ed4c547
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopeRegistry.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.scope;
+
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+
+/**
+ * Manages {@link ScopeContainer}s in the runtime
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ScopeRegistry {
+
+    /**
+     * Returns the scope container for the given scope or null if one not found
+     *
+     * @param scope the scope
+     * @return the scope container for the given scope or null if one not found
+     */
+    ScopeContainer getScopeContainer(RuntimeComponent component);
+
+    /**
+     * @param factory
+     */
+    void register(ScopeContainerFactory factory);
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopedImplementationProvider.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopedImplementationProvider.java
new file mode 100644
index 0000000000..ee55917f2f
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopedImplementationProvider.java
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.scope;
+
+import org.apache.tuscany.sca.core.factory.InstanceWrapper;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+
+/**
+ * A component implementation can implement this interface to provide scope
+ * management for the components
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.inheritfrom
+ */
+public interface ScopedImplementationProvider extends ImplementationProvider {
+    /**
+     * Get the scope for the component implementation
+     * 
+     * @return The scope for the component implementation, if null is returned,
+     *         STATELESS will be used
+     */
+    Scope getScope();
+
+    /**
+     * Indicate if the component needs to be eagerly initialized
+     * 
+     * @return true if the component is marked to be eagerly initialized, false
+     *         otherwise
+     */
+    boolean isEagerInit();
+
+    /**
+     * Create a wrapper for the component instance for the scope management
+     * 
+     * @return A wrapper for the component instance
+     */
+    InstanceWrapper createInstanceWrapper();
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopedRuntimeComponent.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopedRuntimeComponent.java
new file mode 100644
index 0000000000..98c5f84c71
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/ScopedRuntimeComponent.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.scope;
+
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * Scoped runtime component
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public interface ScopedRuntimeComponent extends RuntimeComponent {
+    /**
+     * Set the associated scope container
+     * @param scopeContainer
+     */
+    void setScopeContainer(ScopeContainer scopeContainer);
+    /**
+     * Get the assoicated scope container
+     * @return
+     */
+    ScopeContainer getScopeContainer();
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetDestructionException.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetDestructionException.java
new file mode 100644
index 0000000000..5c85fead2c
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetDestructionException.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.scope;
+
+/**
+ * Denotes an error destroying a target
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class TargetDestructionException extends TargetResolutionException {
+    private static final long serialVersionUID = -6126684147851674709L;
+
+    public TargetDestructionException() {
+        super();
+    }
+
+    public TargetDestructionException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public TargetDestructionException(String message) {
+        super(message);
+    }
+
+    public TargetDestructionException(Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetInitializationException.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetInitializationException.java
new file mode 100644
index 0000000000..89ddd7e538
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetInitializationException.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.scope;
+
+/**
+ * Denotes an error initializing a target
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class TargetInitializationException extends TargetResolutionException {
+    private static final long serialVersionUID = -6228778208649752698L;
+
+    public TargetInitializationException() {
+        super();
+    }
+
+    public TargetInitializationException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public TargetInitializationException(String message) {
+        super(message);
+    }
+
+    public TargetInitializationException(Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetNotFoundException.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetNotFoundException.java
new file mode 100644
index 0000000000..bb46a2499b
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetNotFoundException.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.scope;
+
+/**
+ * Thrown when a target of an operation cannot be found
+ *
+ * @version $Rev$ $Date$
+ */
+public class TargetNotFoundException extends TargetResolutionException {
+    private static final long serialVersionUID = 5541830480658471186L;
+
+    public TargetNotFoundException() {
+        super();
+    }
+
+    public TargetNotFoundException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public TargetNotFoundException(String message) {
+        super(message);
+    }
+
+    public TargetNotFoundException(Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetResolutionException.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetResolutionException.java
new file mode 100644
index 0000000000..17afd36219
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/TargetResolutionException.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.scope;
+
+/**
+ * Denotes an error retrieving a target instance
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class TargetResolutionException extends Exception {
+    private static final long serialVersionUID = 2912513650522019405L;
+
+    public TargetResolutionException() {
+        super();
+    }
+
+    public TargetResolutionException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public TargetResolutionException(String message) {
+        super(message);
+    }
+
+    public TargetResolutionException(Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainer.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainer.java
new file mode 100644
index 0000000000..efe7c94b54
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainer.java
@@ -0,0 +1,89 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.scope.impl;
+
+import org.apache.tuscany.sca.core.factory.InstanceWrapper;
+import org.apache.tuscany.sca.core.scope.AbstractScopeContainer;
+import org.apache.tuscany.sca.core.scope.Scope;
+import org.apache.tuscany.sca.core.scope.TargetDestructionException;
+import org.apache.tuscany.sca.core.scope.TargetNotFoundException;
+import org.apache.tuscany.sca.core.scope.TargetResolutionException;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.oasisopen.sca.ServiceUnavailableException;
+
+/**
+ * A scope context which manages atomic component instances keyed by composite
+ * 
+ * @version $Rev$ $Date$
+ */
+public class CompositeScopeContainer<KEY> extends AbstractScopeContainer<KEY> {
+    private InstanceWrapper<?> wrapper;
+
+    public CompositeScopeContainer(RuntimeComponent component) {
+        super(Scope.COMPOSITE, component);
+    }
+
+    @Override
+    public synchronized void stop() {
+        super.stop();
+        if (wrapper != null) {
+            try {
+                wrapper.stop();
+            } catch (TargetDestructionException e) {
+                wrapper = null;
+                throw new IllegalStateException(e);
+            }
+        }
+        wrapper = null;
+    }
+
+    @Override
+    public synchronized InstanceWrapper getWrapper(KEY contextId) throws TargetResolutionException {
+        if (wrapper == null) {
+            try {
+                wrapper = createInstanceWrapper();
+                wrapper.start();
+            } catch (Exception e) {
+                wrapper = null;
+                throw new ServiceUnavailableException(e);
+            }
+        }
+        return wrapper;
+    }
+
+    @Override
+    public InstanceWrapper getAssociatedWrapper(KEY contextId) throws TargetResolutionException {
+        if (wrapper == null) {
+            throw new TargetNotFoundException(component.getURI());
+        }
+        return wrapper;
+    }
+
+    @Override
+    public synchronized void start() {
+        super.start();
+        if (isEagerInit()) {
+            try {
+                getWrapper(null);
+            } catch (TargetResolutionException e) {
+                throw new IllegalStateException(e);
+            }
+        }
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainerFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainerFactory.java
new file mode 100644
index 0000000000..f61e70a598
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainerFactory.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.scope.impl;
+
+import org.apache.tuscany.sca.core.scope.Scope;
+import org.apache.tuscany.sca.core.scope.ScopeContainer;
+import org.apache.tuscany.sca.core.scope.ScopeContainerFactory;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class CompositeScopeContainerFactory implements ScopeContainerFactory {
+
+    public ScopeContainer createScopeContainer(RuntimeComponent component) {
+        return new CompositeScopeContainer(component);
+    }
+
+    public Scope getScope() {
+        return Scope.COMPOSITE;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/ScopeRegistryImpl.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/ScopeRegistryImpl.java
new file mode 100644
index 0000000000..9884c5f053
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/ScopeRegistryImpl.java
@@ -0,0 +1,70 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.scope.impl;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.tuscany.sca.core.scope.Scope;
+import org.apache.tuscany.sca.core.scope.ScopeContainer;
+import org.apache.tuscany.sca.core.scope.ScopeContainerFactory;
+import org.apache.tuscany.sca.core.scope.ScopeRegistry;
+import org.apache.tuscany.sca.core.scope.ScopedImplementationProvider;
+import org.apache.tuscany.sca.core.scope.ScopedRuntimeComponent;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * The default implementation of a scope registry
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ScopeRegistryImpl implements ScopeRegistry {
+    private final Map<Scope, ScopeContainerFactory> scopeCache = new ConcurrentHashMap<Scope, ScopeContainerFactory>();
+
+    public void register(ScopeContainerFactory factory) {
+        scopeCache.put(factory.getScope(), factory);
+    }
+
+    public ScopeContainer getScopeContainer(RuntimeComponent runtimeComponent) {
+        if (!(runtimeComponent instanceof ScopedRuntimeComponent)) {
+            return null;
+        }
+        ScopedRuntimeComponent component = (ScopedRuntimeComponent)runtimeComponent;
+        if (component.getScopeContainer() != null) {
+            return component.getScopeContainer();
+        }
+        ImplementationProvider implementationProvider = component.getImplementationProvider();
+        if (implementationProvider instanceof ScopedImplementationProvider) {
+            ScopedImplementationProvider provider = (ScopedImplementationProvider)implementationProvider;
+            Scope scope = provider.getScope();
+            if (scope == null) {
+                scope = Scope.STATELESS;
+            } else if (scope.equals(Scope.INVALID)) {
+            	return null;
+            }
+            ScopeContainerFactory factory = scopeCache.get(scope);
+            ScopeContainer container = factory.createScopeContainer(component);
+            component.setScopeContainer(container);
+            return container;
+        }
+        return null;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/StatelessScopeContainer.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/StatelessScopeContainer.java
new file mode 100644
index 0000000000..1235fd2a67
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/StatelessScopeContainer.java
@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.scope.impl;
+
+import org.apache.tuscany.sca.core.factory.InstanceWrapper;
+import org.apache.tuscany.sca.core.scope.AbstractScopeContainer;
+import org.apache.tuscany.sca.core.scope.Scope;
+import org.apache.tuscany.sca.core.scope.TargetDestructionException;
+import org.apache.tuscany.sca.core.scope.TargetResolutionException;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * A scope context which manages stateless atomic component instances in a non-pooled fashion.
+ *
+ * @version $Rev$ $Date$
+ */
+public class StatelessScopeContainer<KEY> extends AbstractScopeContainer<KEY> {
+
+    public StatelessScopeContainer(RuntimeComponent component) {
+        super(Scope.STATELESS, component);
+    }
+
+    @Override
+    public  InstanceWrapper getWrapper(KEY contextId) throws TargetResolutionException {
+        if (lifecycleState != RUNNING) {
+            throw new TargetResolutionException("scope container not running, lifecycleState=" + lifecycleState);
+        }
+        InstanceWrapper ctx = createInstanceWrapper();
+        ctx.start();
+        return ctx;
+    }
+
+    @Override
+    public  InstanceWrapper getAssociatedWrapper(KEY contextId)
+        throws TargetResolutionException {
+        return getWrapper(contextId);
+    }
+
+    @Override
+    public  void returnWrapper(InstanceWrapper wrapper, KEY contextId)
+        throws TargetDestructionException {
+        wrapper.stop();
+    }
+    
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/StatelessScopeContainerFactory.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/StatelessScopeContainerFactory.java
new file mode 100644
index 0000000000..5bf20a6a5f
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/StatelessScopeContainerFactory.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.scope.impl;
+
+import org.apache.tuscany.sca.core.scope.Scope;
+import org.apache.tuscany.sca.core.scope.ScopeContainer;
+import org.apache.tuscany.sca.core.scope.ScopeContainerFactory;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class StatelessScopeContainerFactory implements ScopeContainerFactory {
+
+    public ScopeContainer createScopeContainer(RuntimeComponent component) {
+        return new StatelessScopeContainer(component);
+    }
+
+    public Scope getScope() {
+        return Scope.STATELESS;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/DefaultWorkScheduler.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/DefaultWorkScheduler.java
new file mode 100644
index 0000000000..dd4abf0cd2
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/DefaultWorkScheduler.java
@@ -0,0 +1,210 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.LifeCycleListener;
+import org.apache.tuscany.sca.work.NotificationListener;
+import org.apache.tuscany.sca.work.WorkScheduler;
+import org.apache.tuscany.sca.work.WorkSchedulerException;
+
+/**
+ * A work scheduler implementation based on a JSR 237 work manager.
+ * <p/>
+ * <p/>
+ * This needs a JSR 237 work manager implementation available for scheduling work. Instances can be configured with a
+ * work manager implementation that is injected in. It is the responsibility of the runtime environment to make a work
+ * manager implementation available. For example, if the managed environment supports work manager the runtime can use
+ * the appropriate lookup mechanism to inject the work manager implementation. </p>
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultWorkScheduler implements WorkScheduler, LifeCycleListener {
+
+    /**
+     * Underlying JSR-237 work manager
+     */
+    private ThreadPoolWorkManager jsr237WorkManager;
+    private int maxThreads = 0;
+
+    /**
+     * Initializes the JSR 237 work manager.
+     *
+     * @param jsr237WorkManager JSR 237 work manager.
+     */
+    public DefaultWorkScheduler(ExtensionPointRegistry registry, Map<String, String> attributes) {
+        if (attributes != null) {
+            String value = attributes.get("maxThreads");
+            if (value != null) {
+                maxThreads = Integer.parseInt(value.trim());
+            }
+        }
+    }
+
+    private synchronized ThreadPoolWorkManager getWorkManager() {
+        if (jsr237WorkManager != null) {
+            return jsr237WorkManager;
+        }
+//        try {
+//            InitialContext ctx = new InitialContext();
+//            jsr237WorkManager = (ThreadPoolWorkManager)ctx.lookup("java:comp/env/wm/TuscanyWorkManager");
+//        } catch (Throwable e) {
+//            // ignore
+//        }
+        if (jsr237WorkManager == null) {
+            jsr237WorkManager = new ThreadPoolWorkManager(maxThreads);
+        }
+        return jsr237WorkManager;
+    }
+
+    /**
+     * Schedules a unit of work for future execution. The notification listener is used to register interest in
+     * callbacks regarding the status of the work.
+     *
+     * @param work The unit of work that needs to be asynchronously executed.
+     */
+    public <T extends Runnable> void scheduleWork(T work) {
+        scheduleWork(work, null);
+    }
+
+    /**
+     * Schedules a unit of work for future execution. The notification listener is used to register interest in
+     * callbacks regarding the status of the work.
+     *
+     * @param work     The unit of work that needs to be asynchronously executed.
+     * @param listener Notification listener for callbacks.
+     */
+    public <T extends Runnable> void scheduleWork(T work, NotificationListener<T> listener) {
+
+        if (work == null) {
+            throw new IllegalArgumentException("Work cannot be null");
+        }
+
+        Work<T> jsr237Work = new Work<T>(work);
+        try {
+            if (listener == null) {
+                getWorkManager().schedule(jsr237Work);
+            } else {
+                Jsr237WorkListener<T> jsr237WorkListener = new Jsr237WorkListener<T>(listener, work);
+                getWorkManager().schedule(jsr237Work, jsr237WorkListener);
+            }
+        } catch (IllegalArgumentException ex) {
+            if (listener != null) {
+                listener.workRejected(work);
+            } else {
+                throw new WorkSchedulerException(ex);
+            }
+        } catch (Exception ex) {
+            throw new WorkSchedulerException(ex);
+        }
+
+    }
+
+    public void start() {
+    }
+
+    public void stop() {
+        if (jsr237WorkManager instanceof ThreadPoolWorkManager) {
+            // Allow privileged access to modify threads. Requires RuntimePermission in security
+            // policy.
+            AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                public Object run() {
+                    ((ThreadPoolWorkManager)jsr237WorkManager).destroy();
+                    return null;
+                }
+            });
+        }
+    }
+
+    /*
+     * WorkListener for keeping track of work status callbacks.
+     *
+     */
+    private class Jsr237WorkListener<T extends Runnable> implements WorkListener {
+
+        // Notification listener
+        private NotificationListener<T> listener;
+
+        // Work
+        private T work;
+
+        /*
+        * Initializes the notification listener.
+        */
+        public Jsr237WorkListener(NotificationListener<T> listener, T work) {
+            this.listener = listener;
+            this.work = work;
+        }
+
+        /*
+         * Callback when the work is accepted.
+         */
+        public void workAccepted(WorkEvent workEvent) {
+            T work = getWork();
+            listener.workAccepted(work);
+        }
+
+        /*
+         * Callback when the work is rejected.
+         */
+        public void workRejected(WorkEvent workEvent) {
+            T work = getWork();
+            listener.workRejected(work);
+        }
+
+        /*
+         * Callback when the work is started.
+         */
+        public void workStarted(WorkEvent workEvent) {
+            T work = getWork();
+            listener.workStarted(work);
+        }
+
+        /*
+         * Callback when the work is completed.
+         */
+        public void workCompleted(WorkEvent workEvent) {
+            T work = getWork();
+            Exception exception = workEvent.getException();
+            if (exception != null) {
+                listener.workFailed(work, exception);
+            } else {
+                listener.workCompleted(work);
+            }
+        }
+
+        /*
+        * Gets the underlying work from the work event.
+        */
+        private T getWork() {
+            return work;
+        }
+
+    }
+
+    @Override
+    public ExecutorService getExecutorService() {
+        return getWorkManager().getExecutorService();
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/ThreadPoolWorkManager.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/ThreadPoolWorkManager.java
new file mode 100644
index 0000000000..7e116655e1
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/ThreadPoolWorkManager.java
@@ -0,0 +1,232 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import java.util.Collection;
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.RejectedExecutionException;
+import java.util.concurrent.ThreadFactory;
+
+import org.apache.tuscany.sca.work.WorkSchedulerException;
+
+/**
+ * A thread-pool based implementation for the JSR-237 work manager.
+ * <p/>
+ * <p/>
+ * This implementation supports only local work.
+ * <p/>
+ * TODO Elaborate the implementation. </p>
+ *
+ * @version $Rev$ $Date$
+ */
+public class ThreadPoolWorkManager {
+
+    // Map of work items currently handled by the work manager
+    private Map<WorkItem, WorkListener> workItems = new ConcurrentHashMap<WorkItem, WorkListener>();
+
+    // Thread-pool
+    protected ExecutorService executor;
+
+    /**
+     * Initializes the thread-pool.
+     *
+     * @param threadPoolSize Thread-pool size. If the size <1, then a cached pool is created
+     */
+    public ThreadPoolWorkManager(int threadPoolSize) {
+        ThreadFactory factory = new ThreadFactory() {
+            public Thread newThread(Runnable r) {
+                Thread thread = new Thread(r);
+                thread.setDaemon(true);
+                return thread;
+            }
+        };
+        if (threadPoolSize <= 0) {
+
+            // Creates a new Executor, use a custom ThreadFactory that
+            // creates daemon threads.
+            executor = Executors.newCachedThreadPool(factory);
+        } else {
+            executor = Executors.newFixedThreadPool(threadPoolSize, factory);
+        }
+    }
+
+    /**
+     * Schedules a unit of work asynchronously.
+     *
+     * @param work Work that needs to be scheduled.
+     * @return Work Work item representing the asynchronous work
+     */
+    public WorkItem schedule(Work work) throws IllegalArgumentException {
+        return schedule(work, null);
+    }
+
+    /**
+     * Schedules a unit of work asynchronously.
+     *
+     * @param work         Work that needs to be scheduled.
+     * @param workListener Work listener for callbacks.
+     * @return Work Work item representing the asynchronous work
+     */
+    public WorkItem schedule(Work work, WorkListener workListener) throws IllegalArgumentException {
+
+        WorkItem workItem = new WorkItem(UUID.randomUUID().toString(), work);
+        if (workListener != null) {
+            workItems.put(workItem, workListener);
+        }
+        workAccepted(workItem, work);
+        if (scheduleWork(work, workItem)) {
+            return workItem;
+        } else {
+            workItem.setStatus(WorkEvent.WORK_REJECTED);
+            if (workListener != null) {
+                workListener.workRejected(new WorkEvent(workItem));
+            }
+            throw new IllegalArgumentException("Unable to schedule work");
+        }
+    }
+
+    /**
+     * Wait for all the specified units of work to finish.
+     *
+     * @param works   Units of the work that need to finish.
+     * @param timeout Timeout for waiting for the units of work to finish.
+     */
+    public boolean waitForAll(Collection works, long timeout) {
+        throw new UnsupportedOperationException("waitForAll not supported");
+    }
+
+    /**
+     * Wait for any of the specified units of work to finish.
+     *
+     * @param works   Units of the work that need to finish.
+     * @param timeout Timeout for waiting for the units of work to finish.
+     */
+    public Collection waitForAny(Collection works, long timeout) {
+        throw new UnsupportedOperationException("waitForAny not supported");
+    }
+
+    /**
+     * Method provided for subclasses to indicate a work acceptance.
+     *
+     * @param workItem Work item representing the work that was accepted.
+     * @param work     Work that was accepted.
+     */
+    private void workAccepted(final WorkItem workItem, final Work work) {
+        WorkListener listener = workItems.get(workItem);
+        if (listener != null) {
+            workItem.setStatus(WorkEvent.WORK_ACCEPTED);
+            WorkEvent event = new WorkEvent(workItem);
+            listener.workAccepted(event);
+        }
+    }
+
+    /*
+     * Method to indicate a work start.
+     */
+    private void workStarted(final WorkItem workItem, final Work work) {
+        WorkListener listener = workItems.get(workItem);
+        if (listener != null) {
+            workItem.setStatus(WorkEvent.WORK_STARTED);
+            WorkEvent event = new WorkEvent(workItem);
+            listener.workStarted(event);
+        }
+    }
+
+    /*
+     * Method to indicate a work completion.
+     */
+    private void workCompleted(final WorkItem workItem, final Work work) {
+        workCompleted(workItem, work, null);
+    }
+
+    /*
+     * Method to indicate a work completion.
+     */
+    private void workCompleted(final WorkItem workItem, final Work work, final WorkSchedulerException exception) {
+        WorkListener listener = workItems.get(workItem);
+        if (listener != null) {
+            workItem.setStatus(WorkEvent.WORK_COMPLETED);
+            workItem.setResult(work);
+            workItem.setException(exception);
+            WorkEvent event = new WorkEvent(workItem);
+            listener.workCompleted(event);
+            workItems.remove(workItem);
+        }
+    }
+
+    /*
+     * Schedules the work using the ThreadPool.
+     */
+    private boolean scheduleWork(final Work work, final WorkItem workItem) {
+        try {
+            executor.execute(new DecoratingWork(workItem, work));
+            return true;
+        } catch (RejectedExecutionException ex) {
+            return false;
+        }
+    }
+
+    /*
+     * Class that decorates the original worker so that it can get callbacks when work is done.
+     */
+    private final class DecoratingWork implements Runnable {
+
+        // Work item for this work.
+        private WorkItem workItem;
+
+        // The original work.
+        private Work decoratedWork;
+
+        /*
+         * Initializes the work item and underlying work.
+         */
+        private DecoratingWork(final WorkItem workItem, final Work decoratedWork) {
+            this.workItem = workItem;
+            this.decoratedWork = decoratedWork;
+        }
+
+        /*
+         * Overrides the run method.
+         */
+        public void run() {
+            workStarted(workItem, decoratedWork);
+            try {
+                decoratedWork.run();
+                workCompleted(workItem, decoratedWork);
+            } catch (Throwable th) {
+                workCompleted(workItem, decoratedWork, new WorkSchedulerException(th.getMessage(), th));
+            }
+        }
+
+    }
+
+    public void destroy() {
+        executor.shutdown();
+    }
+
+    public ExecutorService getExecutorService() {
+        return executor;
+    }
+
+}
+
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/Work.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/Work.java
new file mode 100644
index 0000000000..ca06d0e854
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/Work.java
@@ -0,0 +1,65 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.work.impl;
+
+/**
+ * JCA work wrapper.
+ *
+ * @version $Rev$ $Date$
+ */
+public class Work<T extends Runnable> {
+
+    // Work that is being executed.
+    private T work;
+
+    /*
+     * Initializes the work instance.
+     */
+    public Work(T work) {
+        this.work = work;
+    }
+
+    /*
+     * Returns the completed work.
+     */
+    public T getWork() {
+        return work;
+    }
+
+    /*
+     * Release the work.
+     */
+    public void release() {
+    }
+
+    /*
+     * Work attributes are not daemon.
+     */
+    public boolean isDaemon() {
+        return false;
+    }
+
+    /*
+     * Runs the work.
+     */
+    public void run() {
+        work.run();
+    }
+}
\ No newline at end of file
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkEvent.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkEvent.java
new file mode 100644
index 0000000000..4580011806
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkEvent.java
@@ -0,0 +1,80 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import org.apache.tuscany.sca.work.WorkSchedulerException;
+
+
+
+/**
+ * Default immutable implementation of the <code>WorkEvent</code> class.
+ *
+ * @version $Rev$ $Date$
+ */
+class WorkEvent {
+    
+    public static final int WORK_ACCEPTED = 1;
+    public static final int WORK_REJECTED = 2;
+    public static final int WORK_STARTED = 3;
+    public static final int WORK_COMPLETED = 4;
+
+    // Work item for this event
+    private WorkItem workItem;
+
+    // Exception if something has gone wrong
+    private WorkSchedulerException exception;
+
+    /**
+     * Instantiates the event.
+     *
+     * @param workItem Work item for this event.
+     */
+    public WorkEvent(final WorkItem workItem) {
+        this.workItem = workItem;
+        this.exception = workItem.getException();
+    }
+
+    /**
+     * Returns the work type based on whether the work was accepted, started,
+     * rejected or completed.
+     *
+     * @return Work type.
+     */
+    public int getType() {
+        return workItem.getStatus();
+    }
+
+    /**
+     * Returns the work item associated with this work type.
+     *
+     * @return Work item.
+     */
+    public WorkItem getWorkItem() {
+        return workItem;
+    }
+
+    /**
+     * Returns the exception if the work completed with an exception.
+     *
+     * @return Work exception.
+     */
+    public WorkSchedulerException getException() {
+        return exception;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkItem.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkItem.java
new file mode 100644
index 0000000000..0fc104d0fc
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkItem.java
@@ -0,0 +1,167 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import org.apache.tuscany.sca.work.WorkSchedulerException;
+
+/**
+ * An identity based immutable implementation of the <code>WorkItem</code>
+ * interface.
+ *
+ * @version $Rev$ $Date$
+ */
+class WorkItem {
+    
+    // Id scoped for the VM
+    private String id;
+
+    // Status
+    private int status = -1;
+
+    // Result
+    private Work<?> result;
+    
+    // Original work
+    private Work<?> originalWork;
+
+    // Exception
+    private WorkSchedulerException exception;
+
+    /**
+     * Instantiates an id for this item.
+     *
+     * @param id of this work event.
+     */
+    protected WorkItem(final String id, final Work<?> orginalWork) {
+        this.id = id;
+        this.originalWork = orginalWork;
+    }
+
+    /**
+     * Returns the id.
+     *
+     * @return Id of this item.
+     */
+    public String getId() {
+        return id;
+    }
+
+    /**
+     * Returns the original work.
+     *
+     * @return Original work.
+     */
+    public Work<?> getOriginalWork() {
+        return originalWork;
+    }
+
+    /**
+     * Returns the work result if the work completed.
+     *
+     * @return Work.
+     * @throws WorkException If the work completed with an exception.
+     */
+    public Work<?> getResult() {
+        return result;
+    }
+
+    /**
+     * Sets the result.
+     *
+     * @param result Result.
+     */
+    protected void setResult(final Work<?> result) {
+        this.result = result;
+    }
+
+    /**
+     * Returns the exception if work completed with an exception.
+     *
+     * @return Work exception.
+     */
+    protected WorkSchedulerException getException() {
+        return exception;
+    }
+
+    /**
+     * Sets the exception.
+     *
+     * @param exception Exception.
+     */
+    protected void setException(final WorkSchedulerException exception) {
+        this.exception = exception;
+    }
+
+    /**
+     * Returns the work type based on whether the work was accepted, started,
+     * rejected or completed.
+     *
+     * @return Work status.
+     */
+    public int getStatus() {
+        return status;
+    }
+
+    /**
+     * Sets the status.
+     *
+     * @param status Status.
+     */
+    protected void setStatus(final int status) {
+        this.status = status;
+    }
+
+    /**
+     * @see Object#hashCode() 
+     */
+    @Override
+    public int hashCode() {
+        return id.hashCode();
+    }
+
+    /**
+     * Indicates whether some other object is "equal to" this one.
+     *
+     * @param obj Object to be compared.
+     * @return true if this object is the same as the obj argument; false
+     *         otherwise..
+     */
+    @Override
+    public boolean equals(final Object obj) {
+        return (obj != null) && (obj.getClass() == WorkItem.class) && ((WorkItem) obj).id.equals(id);
+    }
+
+    /**
+     * Compares this object with the specified object for order. Returns a
+     * negative integer, zero, or a positive integer as this object is less
+     * than, equal to, or greater than the specified object.
+     *
+     * @param o Object to be compared.
+     * @return A negative integer, zero, or a positive integer as this object
+     *         is less than, equal to, or greater than the specified object.
+     * @throws ClassCastException needs better documentation.
+     */
+    public int compareTo(final Object o) {
+        if (o.getClass() != WorkItem.class) {
+            throw new ClassCastException(o.getClass().getName());
+        } else {
+            return ((WorkItem) o).getId().compareTo(getId());
+        }
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkListener.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkListener.java
new file mode 100644
index 0000000000..38bbaeebe0
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/java/org/apache/tuscany/sca/core/work/impl/WorkListener.java
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.work.impl;
+
+public interface WorkListener {
+
+    long IMMEDIATE = 0;
+    long INDEFINITE = java.lang.Long.MAX_VALUE;
+
+    void workAccepted(WorkEvent event);
+    void workCompleted(WorkEvent event);
+    void workRejected(WorkEvent event);
+    void workStarted(WorkEvent event);
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.AssemblyFactory b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.AssemblyFactory
new file mode 100644
index 0000000000..e8ee318b6c
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.AssemblyFactory
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License. 

+# Set the ranking to be greater than the DefaultAssemblyFactory

+org.apache.tuscany.sca.core.assembly.RuntimeAssemblyFactory;ranking=100

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.context.ComponentContextFactory b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.context.ComponentContextFactory
new file mode 100644
index 0000000000..51ed2449fb
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.context.ComponentContextFactory
@@ -0,0 +1,17 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+org.apache.tuscany.sca.core.context.DefaultComponentContextFactory

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.context.RequestContextFactory b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.context.RequestContextFactory
new file mode 100644
index 0000000000..70b17a2f00
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.context.RequestContextFactory
@@ -0,0 +1,17 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+org.apache.tuscany.sca.core.context.DefaultRequestContextFactory

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
new file mode 100644
index 0000000000..94c83ceeab
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
@@ -0,0 +1,20 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License. 
+
+# Implementation class for the artifact processor extension
+org.apache.tuscany.sca.core.assembly.impl.ReferenceParameterProcessor;qname=http://tuscany.apache.org/xmlns/sca/1.1#referenceParameters,model=org.apache.tuscany.sca.runtime.ReferenceParameters
+

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint
new file mode 100644
index 0000000000..c6567aa904
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+

+org.apache.tuscany.sca.core.invocation.DefaultProxyFactoryExtensionPoint

+

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.scope.ScopeRegistry b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.scope.ScopeRegistry
new file mode 100644
index 0000000000..2aa000efc0
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.scope.ScopeRegistry
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+

+org.apache.tuscany.sca.core.scope.DefaultScopeRegistry

+

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.invocation.MessageFactory b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.invocation.MessageFactory
new file mode 100644
index 0000000000..a21b75b570
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.invocation.MessageFactory
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+

+org.apache.tuscany.sca.core.invocation.impl.MessageFactoryImpl

+

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.CompositeActivator b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.CompositeActivator
new file mode 100644
index 0000000000..0182f52086
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.CompositeActivator
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+

+org.apache.tuscany.sca.core.assembly.impl.CompositeActivatorImpl

+

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.DomainRegistryFactory b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.DomainRegistryFactory
new file mode 100644
index 0000000000..6a01eac2df
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.DomainRegistryFactory
@@ -0,0 +1,17 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+#

+#   http://www.apache.org/licenses/LICENSE-2.0

+#

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+org.apache.tuscany.sca.core.assembly.impl.LocalDomainRegistryFactory;ranking=10

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointReferenceBinder b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointReferenceBinder
new file mode 100644
index 0000000000..61edf5111e
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointReferenceBinder
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License. 

+org.apache.tuscany.sca.core.runtime.impl.EndpointReferenceBinderImpl

+

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointSerializer b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointSerializer
new file mode 100644
index 0000000000..fb951e75d5
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointSerializer
@@ -0,0 +1,17 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+#

+#   http://www.apache.org/licenses/LICENSE-2.0

+#

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+org.apache.tuscany.sca.core.assembly.impl.EndpointSerializerImpl

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.RuntimeProperties b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.RuntimeProperties
new file mode 100644
index 0000000000..66e0277d59
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.RuntimeProperties
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+#

+#   http://www.apache.org/licenses/LICENSE-2.0

+#

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+org.apache.tuscany.sca.core.runtime.impl.RuntimePropertiesImpl

+

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.work.WorkScheduler b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.work.WorkScheduler
new file mode 100644
index 0000000000..90e887739a
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.work.WorkScheduler
@@ -0,0 +1,17 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License.

+org.apache.tuscany.sca.core.work.impl.DefaultWorkScheduler;maxThreads=0

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/core-messages.properties b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/core-messages.properties
new file mode 100644
index 0000000000..f6346b885f
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/core-messages.properties
@@ -0,0 +1,21 @@
+#
+#    Licensed to the Apache Software Foundation (ASF) under one
+#    or more contributor license agreements. See the NOTICE file
+#    distributed with this work for additional information
+#    regarding copyright ownership. The ASF licenses this file
+#    to you under the Apache License, Version 2.0 (the
+#    "License"); you may not use this file except in compliance
+#    with the License. You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing,
+#    software distributed under the License is distributed on an
+#    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+#    KIND, either express or implied. See the License for the
+#    specific language governing permissions and limitations
+#    under the License.
+#
+#
+StopException = Exception during stop processing
+StartException = Exception during start processing
\ No newline at end of file
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/endpoint-validation-messages.properties b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/endpoint-validation-messages.properties
new file mode 100644
index 0000000000..75f635fb1a
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/main/resources/endpoint-validation-messages.properties
@@ -0,0 +1,23 @@
+#
+#
+#    Licensed to the Apache Software Foundation (ASF) under one
+#    or more contributor license agreements. See the NOTICE file
+#    distributed with this work for additional information
+#    regarding copyright ownership. The ASF licenses this file
+#    to you under the Apache License, Version 2.0 (the
+#    "License"); you may not use this file except in compliance
+#    with the License. You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing,
+#    software distributed under the License is distributed on an
+#    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+#    KIND, either express or implied. See the License for the
+#    specific language governing permissions and limitations
+#    under the License.
+#
+#
+NoEndpointsFound = No endpoints found in the domain that match the reference {0} 
+EndpointReferenceCantBeMatched = = Unable to match the endpoint reference {0} with the policy of the service to which it refers, matching process was {1}
+ComponentReferenceTargetNotFound = Component reference target not found at deployment time, it might be a remote service elsewhere in the SCA Domain so we'll try and resolve it again at runtime: {1} 
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/InvocationChainImplTestCase.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/InvocationChainImplTestCase.java
new file mode 100644
index 0000000000..38306317b4
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/InvocationChainImplTestCase.java
@@ -0,0 +1,93 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import static org.junit.Assert.assertEquals;
+
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.impl.OperationImpl;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.junit.Test;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class InvocationChainImplTestCase {
+
+    @Test
+    public void testInsertAtEnd() throws Exception {
+        Operation op = newOperation("foo");
+        InvocationChain chain = new InvocationChainImpl(op, op, true, new PhaseManager(new DefaultExtensionPointRegistry()), false);
+        Interceptor inter2 = new MockInterceptor();
+        Interceptor inter1 = new MockInterceptor();
+        chain.addInterceptor(inter1);
+        chain.addInterceptor(inter2);
+        Interceptor head = (Interceptor)chain.getHeadInvoker();
+        assertEquals(inter1, head);
+        assertEquals(inter2, head.getNext());
+    }
+
+    @Test
+    public void testAddByPhase() throws Exception {
+        Operation op = newOperation("foo");
+        InvocationChain chain = new InvocationChainImpl(op, op, false, new PhaseManager(new DefaultExtensionPointRegistry()), false);
+        Interceptor inter1 = new MockInterceptor();
+        Interceptor inter2 = new MockInterceptor();
+        Interceptor inter3 = new MockInterceptor();
+        Interceptor inter4 = new MockInterceptor();
+        chain.addInterceptor(inter3); // SERVICE
+        chain.addInterceptor(Phase.IMPLEMENTATION_POLICY, inter4);
+        chain.addInterceptor(Phase.SERVICE_POLICY, inter2);
+        chain.addInterceptor(Phase.SERVICE_BINDING, inter1);
+        Interceptor head = (Interceptor)chain.getHeadInvoker();
+        assertEquals(inter1, head);
+        assertEquals(inter2, inter1.getNext());
+        assertEquals(inter3, inter2.getNext());
+        assertEquals(inter4, inter3.getNext());
+    }
+
+    private class MockInterceptor implements Interceptor {
+
+        private Invoker next;
+
+        public Message invoke(Message msg) {
+            return null;
+        }
+
+        public void setNext(Invoker next) {
+            this.next = next;
+        }
+
+        public Invoker getNext() {
+            return next;
+        }
+
+    }
+
+    private static Operation newOperation(String name) {
+        Operation operation = new OperationImpl();
+        operation.setName(name);
+        return operation;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/PhaseManagerTestCase.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/PhaseManagerTestCase.java
new file mode 100644
index 0000000000..8fcead004d
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/PhaseManagerTestCase.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import java.util.List;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class PhaseManagerTestCase {
+
+    @Test
+    public void testDiscovery() {
+        PhaseManager pm = new PhaseManager("org.apache.tuscany.sca.invocation.PhaseTest");
+        List<String> phases = pm.getAllPhases();
+        System.out.println(phases.size());
+        System.out.println(phases);
+        // Assert.assertEquals(15, phases.size());
+        Assert.assertEquals("reference.first", phases.get(0));
+
+        int rt = phases.indexOf("reference.transaction");
+        Assert.assertTrue(rt > phases.indexOf("reference.interface"));
+
+        int st = phases.indexOf("service.transaction");
+        Assert.assertTrue(st > phases.indexOf("service.binding"));
+
+        int it = phases.indexOf("implementation.transaction");
+        Assert.assertTrue(it < phases.indexOf("implementation.policy"));
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/PhaseSorterTestCase.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/PhaseSorterTestCase.java
new file mode 100644
index 0000000000..c268e133e4
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/invocation/impl/PhaseSorterTestCase.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.invocation.impl;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+public class PhaseSorterTestCase {
+    private PhaseSorter<String> graph;
+
+    @Before
+    public void setUp() throws Exception {
+        graph = new PhaseSorter<String>();
+    }
+
+    @Test
+    public void testSort() {
+        graph.addEdge("a", "b");
+        graph.addEdge("a", "c");
+        graph.addEdge("c", "d");
+        graph.addEdge("b", "c");
+        List<String> order = graph.topologicalSort(true);
+        assertEquals(Arrays.asList("a", "b", "c", "d"), order);
+        assertTrue(!graph.getVertices().isEmpty());
+
+        graph.addEdge("d", "a");
+        try {
+            order = graph.topologicalSort(true);
+            assertTrue("Should have failed", false);
+        } catch (IllegalArgumentException e) {
+            assertTrue(true);
+        }
+
+        graph.removeEdge("d", "a");
+        order = graph.topologicalSort(false);
+        assertEquals(Arrays.asList("a", "b", "c", "d"), order);
+        assertTrue(graph.getVertices().isEmpty());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/FailingWork.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/FailingWork.java
new file mode 100644
index 0000000000..16ca5fd00e
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/FailingWork.java
@@ -0,0 +1,54 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+
+
+/**
+ * Simple Work item that will throw an exception
+ * 
+ * @version $Rev$ $Date$
+ */
+public class FailingWork extends Work {
+
+    public FailingWork() {
+        super(null);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public boolean isDaemon() {
+        return false;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void release() {
+    }
+
+    /**
+     * Throws an IllegalArgumentException
+     */
+    public void run() {
+        System.out.println("Starting " + this + " and throwing an Exception");
+        throw new IllegalArgumentException("Sample exception from " + this);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyFailingRunnable.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyFailingRunnable.java
new file mode 100644
index 0000000000..2d791e5012
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyFailingRunnable.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+/**
+ * Simple Runnable that throws an IllegalArgumentException
+ *
+ * @version $Rev$ $Date$
+ */
+public class JSR237MyFailingRunnable extends JSR237MyRunnable {
+
+    /**
+     * Constructor
+     */
+    public JSR237MyFailingRunnable() {
+        super(-1);
+    }
+
+    /**
+     * Sleeps for a period of time defined by sleepTime
+     */
+    @Override
+    public void run() {
+        System.out.println("Starting " + this + " and throwing an Exception");
+        throw new IllegalArgumentException("Sample exception from " + this);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyRunnable.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyRunnable.java
new file mode 100644
index 0000000000..c0183b6f9b
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyRunnable.java
@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * Simple Runnable that is used for testing Jsr237WorkScheduler
+ *
+ * @version $Rev$ $Date$
+ */
+public class JSR237MyRunnable implements Runnable {
+
+    /**
+     * Count of workAccepted() method calls
+     */
+    private AtomicInteger runCompletedCount = new AtomicInteger();
+
+    /**
+     * The amount of time to sleep in the Run loop
+     */
+    private final long sleepTime;
+
+    /**
+     * Constructor
+     *
+     * @param sleepTime The amount of time to sleep (in milliseconds) in the run() method
+     */
+    public JSR237MyRunnable(long sleepTime) {
+        this.sleepTime = sleepTime;
+    }
+
+    /**
+     * Sleeps for a period of time defined by sleepTime
+     */
+    public void run() {
+        System.out.println("Starting " + this);
+        try {
+            Thread.sleep(sleepTime);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        System.out.println("Done " + this);
+        runCompletedCount.incrementAndGet();
+    }
+
+    /**
+     * Returns the number of completed calls to run()
+     *
+     * @return The number of completed calls to run()
+     */
+    public int getRunCompletedCount() {
+        return runCompletedCount.get();
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyRunnerListener.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyRunnerListener.java
new file mode 100644
index 0000000000..307f24aca7
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/JSR237MyRunnerListener.java
@@ -0,0 +1,154 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.apache.tuscany.sca.work.NotificationListener;
+
+/**
+ * Simple NotificationListener that is used for testing Jsr237WorkScheduler
+ *
+ * @version $Rev$ $Date$
+ */
+public class JSR237MyRunnerListener implements NotificationListener<JSR237MyRunnable> {
+
+    /**
+     * Count of workAccepted() method calls
+     */
+    private AtomicInteger workAcceptedCallCount = new AtomicInteger();
+
+    /**
+     * Count of workStarted() method calls
+     */
+    private AtomicInteger workStartedCallCount = new AtomicInteger();
+
+    /**
+     * Count of workCompleted() method calls
+     */
+    private AtomicInteger workCompletedCallCount = new AtomicInteger();
+
+    /**
+     * Count of workFailed() method calls
+     */
+    private AtomicInteger workFailedCallCount = new AtomicInteger();
+
+    /**
+     * Count of workRejected() method calls
+     */
+    private AtomicInteger workRejectedCallCount = new AtomicInteger();
+
+    /**
+     * List of all exceptions thrown by Work items
+     */
+    private List<Throwable> workExceptions = Collections.synchronizedList(new ArrayList<Throwable>());
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workAccepted(JSR237MyRunnable work) {
+        workAcceptedCallCount.incrementAndGet();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workCompleted(JSR237MyRunnable work) {
+        workCompletedCallCount.incrementAndGet();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workFailed(JSR237MyRunnable work, Throwable error) {
+        workExceptions.add(error);
+        workFailedCallCount.incrementAndGet();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workRejected(JSR237MyRunnable work) {
+        workRejectedCallCount.incrementAndGet();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workStarted(JSR237MyRunnable work) {
+        workStartedCallCount.incrementAndGet();
+    }
+
+    /**
+     * Returns the number of calls to workAccepted()
+     *
+     * @return The number of calls to workAccepted()
+     */
+    public int getWorkAcceptedCallCount() {
+        return workAcceptedCallCount.get();
+    }
+
+    /**
+     * Returns the number of calls to workStarted()
+     *
+     * @return The number of calls to workStarted()
+     */
+    public int getWorkStartedCallCount() {
+        return workStartedCallCount.get();
+    }
+
+    /**
+     * Returns the number of calls to workCompleted()
+     *
+     * @return The number of calls to workCompleted()
+     */
+    public int getWorkCompletedCallCount() {
+        return workCompletedCallCount.get();
+    }
+
+    /**
+     * Returns the number of calls to workFailed()
+     *
+     * @return The number of calls to workFailed()
+     */
+    public int getWorkFailedCallCount() {
+        return workFailedCallCount.get();
+    }
+
+    /**
+     * Returns the number of calls to workRejected()
+     *
+     * @return The number of calls to workRejected()
+     */
+    public int getWorkRejectedCallCount() {
+        return workRejectedCallCount.get();
+    }
+
+    /**
+     * Returns a List of all exceptions that are thrown by the Work items
+     *
+     * @return A List of all exceptions that are thrown by the Work items
+     */
+    public List<Throwable> getWorkExceptions() {
+        return Collections.unmodifiableList(workExceptions);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/Jsr237WorkSchedulerTestCase.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/Jsr237WorkSchedulerTestCase.java
new file mode 100644
index 0000000000..4ec0f55867
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/Jsr237WorkSchedulerTestCase.java
@@ -0,0 +1,240 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * Test case for Jsr237WorkScheduler
+ *
+ * @version $Rev$ $Date$
+ */
+public class Jsr237WorkSchedulerTestCase {
+
+    /**
+     * Wait up to 20 seconds for the Work units to complete
+     */
+    private static final long WAIT_TIMEOUT = 20000;
+
+    /**
+     * This is the shared instance of the ThreadPoolWorkManager used by the tests
+     */
+    private static DefaultWorkScheduler workSchedular = null;
+
+    /**
+     * Setup the Jsr237WorkScheduler
+     */
+    @BeforeClass
+    public static void setup() {
+        workSchedular = new DefaultWorkScheduler(null, null);
+    }
+
+    /**
+     * Make sure that the Jsr237WorkScheduler is stopped after running the tests
+     */
+    @AfterClass
+    public static void destroy() {
+        if (workSchedular != null) {
+            workSchedular.stop();
+        }
+    }
+
+    /**
+     * Tests running a single fast job on the Jsr237WorkScheduler
+     */
+    @Test
+    public void testSingleFastJob() {
+        // Create the work and register it
+        JSR237MyRunnable fast = new JSR237MyRunnable(10);
+        JSR237MyRunnerListener listener = new JSR237MyRunnerListener();
+        workSchedular.scheduleWork(fast, listener);
+
+        // Wait for the 1 job to complete
+        waitForWorkToComplete(listener, 1);
+
+        // Test that the job completed successfully.
+        Assert.assertEquals(1, listener.getWorkAcceptedCallCount());
+        Assert.assertEquals(0, listener.getWorkRejectedCallCount());
+        Assert.assertEquals(1, listener.getWorkStartedCallCount());
+        Assert.assertEquals(1, listener.getWorkCompletedCallCount());
+        Assert.assertEquals(0, listener.getWorkExceptions().size());
+    }
+
+    /**
+     * Tests running a single job that fails on the Jsr237WorkScheduler
+     */
+    @Test
+    public void testSingleFailingJob() {
+        // Create the work and register it
+        JSR237MyFailingRunnable fail = new JSR237MyFailingRunnable();
+        JSR237MyRunnerListener listener = new JSR237MyRunnerListener();
+        workSchedular.scheduleWork(fail, listener);
+
+        // Wait for the 1 job to complete
+        waitForWorkToComplete(listener, 1);
+
+        // Test that the job completed successfully.
+        Assert.assertEquals(1, listener.getWorkAcceptedCallCount());
+        Assert.assertEquals(0, listener.getWorkRejectedCallCount());
+        Assert.assertEquals(1, listener.getWorkStartedCallCount());
+        Assert.assertEquals(0, listener.getWorkCompletedCallCount());
+        Assert.assertEquals(1, listener.getWorkFailedCallCount());
+        Assert.assertEquals(1, listener.getWorkExceptions().size());
+    }
+
+    /**
+     * Tests running a mixture of fast and slow jobs on the Jsr237WorkScheduler
+     */
+    @Test
+    public void testMultipleJobs() {
+        // Create the work and register it
+        JSR237MyRunnable fast1 = new JSR237MyRunnable(5);
+        JSR237MyRunnable fast2 = new JSR237MyRunnable(10);
+        JSR237MyRunnable fast3 = new JSR237MyRunnable(20);
+        JSR237MyRunnable slow1= new JSR237MyRunnable(200);
+        JSR237MyRunnable slow2 = new JSR237MyRunnable(200);
+        JSR237MyRunnerListener listener = new JSR237MyRunnerListener();
+        workSchedular.scheduleWork(fast1, listener);
+        workSchedular.scheduleWork(fast2, listener);
+        workSchedular.scheduleWork(fast3, listener);
+        workSchedular.scheduleWork(slow1, listener);
+        workSchedular.scheduleWork(slow2, listener);
+
+        // Wait for the 5 jobs to complete
+        waitForWorkToComplete(listener, 5);
+
+        // Test that the job completed successfully.
+        Assert.assertEquals(5, listener.getWorkAcceptedCallCount());
+        Assert.assertEquals(0, listener.getWorkRejectedCallCount());
+        Assert.assertEquals(5, listener.getWorkStartedCallCount());
+        Assert.assertEquals(5, listener.getWorkCompletedCallCount());
+        Assert.assertEquals(0, listener.getWorkExceptions().size());
+    }
+
+    /**
+     * Tests running a mixture of fast and slow jobs some of which fail on the
+     * Jsr237WorkScheduler
+     */
+    @Test
+    public void testMultipleJobsSomeFail() {
+        // Create the work and register it
+        JSR237MyRunnable fast1 = new JSR237MyRunnable(5);
+        JSR237MyRunnable fast2 = new JSR237MyRunnable(10);
+        JSR237MyRunnable fast3 = new JSR237MyRunnable(20);
+        JSR237MyRunnable slow1= new JSR237MyRunnable(200);
+        JSR237MyRunnable slow2 = new JSR237MyRunnable(200);
+        JSR237MyFailingRunnable fail1 = new JSR237MyFailingRunnable();
+        JSR237MyFailingRunnable fail2 = new JSR237MyFailingRunnable();
+        JSR237MyRunnerListener listener = new JSR237MyRunnerListener();
+        workSchedular.scheduleWork(fast1, listener);
+        workSchedular.scheduleWork(fast2, listener);
+        workSchedular.scheduleWork(fail1, listener);
+        workSchedular.scheduleWork(fast3, listener);
+        workSchedular.scheduleWork(slow1, listener);
+        workSchedular.scheduleWork(fail2, listener);
+        workSchedular.scheduleWork(slow2, listener);
+
+        // Wait for the 7 jobs to complete
+        waitForWorkToComplete(listener, 7);
+
+        // Test that the job completed successfully.
+        Assert.assertEquals(7, listener.getWorkAcceptedCallCount());
+        Assert.assertEquals(0, listener.getWorkRejectedCallCount());
+        Assert.assertEquals(7, listener.getWorkStartedCallCount());
+        Assert.assertEquals(5, listener.getWorkCompletedCallCount());
+        Assert.assertEquals(2, listener.getWorkFailedCallCount());
+        Assert.assertEquals(2, listener.getWorkExceptions().size());
+    }
+
+    /**
+     * Tests running a single job that has no listener
+     */
+    @Test
+    public void testSingleFastJobWithNoListener() {
+        // Create the work and register it
+        JSR237MyRunnable fast = new JSR237MyRunnable(10);
+        workSchedular.scheduleWork(fast);
+
+        // Wait for the job to complete
+        long startTime = System.currentTimeMillis();
+        while (true) {
+            int completedCount = fast.getRunCompletedCount();
+            if (completedCount == 1) {
+                break;
+            }
+
+            if (System.currentTimeMillis() - startTime > WAIT_TIMEOUT) {
+                Assert.fail("Only " + completedCount + " work items completed before timeout");
+                return;
+            }
+
+            // Lets wait for the job to complete
+            try {
+                Thread.sleep(25);
+            } catch (InterruptedException ex) {
+                Assert.fail("Unexpected exception: " + ex);
+            }
+        }
+    }
+
+    /**
+     * Tests scheduling a null as the work item
+     */
+    @Test
+    public void testNullWork() {
+        try {
+            workSchedular.scheduleWork(null);
+            Assert.fail("Should have thrown IllegalArgumentException ");
+        } catch (IllegalArgumentException ex) {
+            // As expected
+            Assert.assertTrue(ex.toString().indexOf("null") != -1);
+        }
+    }
+
+    /**
+     * Waits for the specified number of jobs to complete or the timeout to fire.
+     *
+     * @param listener The listener to use to track Work unit completion
+     * @param completedWorkItemsToWaitFor The number of Work items to complete
+     */
+    private void waitForWorkToComplete(JSR237MyRunnerListener listener, int completedWorkItemsToWaitFor) {
+        long startTime = System.currentTimeMillis();
+        while (true) {
+            int completedCount = listener.getWorkCompletedCallCount() + listener.getWorkFailedCallCount();
+            if (completedCount == completedWorkItemsToWaitFor) {
+                return;
+            }
+
+            if (System.currentTimeMillis() - startTime > WAIT_TIMEOUT) {
+                Assert.fail("Only " + completedCount + " work items completed before timeout");
+                return;
+            }
+
+            // Lets wait for more jobs to complete
+            try {
+                Thread.sleep(25);
+            } catch (InterruptedException ex) {
+                Assert.fail("Unexpected exception: " + ex);
+            }
+        }
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/TestWorkListener.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/TestWorkListener.java
new file mode 100644
index 0000000000..a452d6f371
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/TestWorkListener.java
@@ -0,0 +1,153 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.apache.tuscany.sca.work.WorkSchedulerException;
+import org.junit.Assert;
+
+/**
+ * A simple WorkListener that tracks invocations to it.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class TestWorkListener implements WorkListener {
+
+    /**
+     * Count of workAccepted() method calls
+     */
+    private AtomicInteger workAcceptedCallCount = new AtomicInteger();
+
+    /**
+     * Count of workStarted() method calls
+     */
+    private AtomicInteger workStartedCallCount = new AtomicInteger();
+
+    /**
+     * Count of workCompleted() method calls
+     */
+    private AtomicInteger workCompletedCallCount = new AtomicInteger();
+
+    /**
+     * Count of workRejected() method calls
+     */
+    private AtomicInteger workRejectedCallCount = new AtomicInteger();
+
+    /**
+     * List of all exceptions thrown by Work items
+     */
+    private List<WorkSchedulerException> workExceptions = Collections.synchronizedList(new ArrayList<WorkSchedulerException>());
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workAccepted(WorkEvent work) {
+        workAcceptedCallCount.incrementAndGet();
+
+        // Validate the WorkEvent
+        Assert.assertNotNull(work.getWorkItem());
+        Assert.assertEquals(WorkEvent.WORK_ACCEPTED, work.getType());
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workStarted(WorkEvent work) {
+        workStartedCallCount.incrementAndGet();
+
+        // Validate the WorkEvent
+        Assert.assertNotNull(work.getWorkItem());
+        Assert.assertEquals(WorkEvent.WORK_STARTED, work.getType());
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workCompleted(WorkEvent work) {
+        if (work.getException() != null) {
+            workExceptions.add(work.getException());
+        }
+
+        // Validate the WorkEvent
+        Assert.assertNotNull(work.getWorkItem());
+        Assert.assertEquals(WorkEvent.WORK_COMPLETED, work.getType());
+
+        workCompletedCallCount.incrementAndGet();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void workRejected(WorkEvent work) {
+        workRejectedCallCount.incrementAndGet();
+
+        // Validate the WorkEvent
+        Assert.assertNotNull(work.getWorkItem());
+        Assert.assertEquals(WorkEvent.WORK_REJECTED, work.getType());
+    }
+
+    /**
+     * Returns the number of calls to workAccepted()
+     * 
+     * @return The number of calls to workAccepted()
+     */
+    public int getWorkAcceptedCallCount() {
+        return workAcceptedCallCount.get();
+    }
+
+    /**
+     * Returns the number of calls to workStarted()
+     * 
+     * @return The number of calls to workStarted()
+     */
+    public int getWorkStartedCallCount() {
+        return workStartedCallCount.get();
+    }
+
+    /**
+     * Returns the number of calls to workCompleted()
+     * 
+     * @return The number of calls to workCompleted()
+     */
+    public int getWorkCompletedCallCount() {
+        return workCompletedCallCount.get();
+    }
+
+    /**
+     * Returns the number of calls to workRejected()
+     * 
+     * @return The number of calls to workRejected()
+     */
+    public int getWorkRejectedCallCount() {
+        return workRejectedCallCount.get();
+    }
+
+    /**
+     * Returns a List of all exceptions that are thrown by the Work items
+     * 
+     * @return A List of all exceptions that are thrown by the Work items
+     */
+    public List<WorkSchedulerException> getWorkExceptions() {
+        return Collections.unmodifiableList(workExceptions);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/ThreadPoolWorkManagerTestCase.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/ThreadPoolWorkManagerTestCase.java
new file mode 100644
index 0000000000..122609d7e6
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/ThreadPoolWorkManagerTestCase.java
@@ -0,0 +1,227 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * This test case will test the ThreadPoolWorkManager
+ *
+ * @version $Rev$ $Date$
+ */
+public class ThreadPoolWorkManagerTestCase {
+
+    /**
+     * Wait up to 20 seconds for the Work units to complete
+     */
+    private static final long WAIT_TIMEOUT = 20000;
+
+    /**
+     * This is the shared instance of the ThreadPoolWorkManager used by the tests
+     */
+    private static ThreadPoolWorkManager workManager = null;
+
+    /**
+     * Setup the ThreadPoolWorkManager
+     */
+    @BeforeClass
+    public static void setup() {
+        workManager = new ThreadPoolWorkManager(10);
+    }
+
+    /**
+     * Make sure that the ThreadPoolWorkManager is stopped after running the tests
+     */
+    @AfterClass
+    public static void destroy() {
+        if (workManager != null) {
+            workManager.destroy();
+        }
+    }
+
+    /**
+     * Tests running a single fast job on the ThreadPoolWorkManager
+     */
+    @Test
+    public void testSingleFastJob() {
+        // Create the work and register it
+        TimeDelayWork fast = new TimeDelayWork(10);
+        TestWorkListener listener = new TestWorkListener();
+        workManager.schedule(fast, listener);
+
+        // Wait for the 1 job to complete
+        waitForWorkToComplete(listener, 1);
+
+        // Test that the job completed successfully.
+        Assert.assertEquals(1, listener.getWorkAcceptedCallCount());
+        Assert.assertEquals(0, listener.getWorkRejectedCallCount());
+        Assert.assertEquals(1, listener.getWorkStartedCallCount());
+        Assert.assertEquals(1, listener.getWorkCompletedCallCount());
+        Assert.assertEquals(0, listener.getWorkExceptions().size());
+    }
+
+    /**
+     * Tests running a single job that fails on the ThreadPoolWorkManager
+     */
+    @Test
+    public void testSingleFailingJob() {
+        // Create the work and register it
+        FailingWork fail = new FailingWork();
+        TestWorkListener listener = new TestWorkListener();
+        workManager.schedule(fail, listener);
+
+        // Wait for the 1 job to complete
+        waitForWorkToComplete(listener, 1);
+
+        // Test that the job completed successfully.
+        Assert.assertEquals(1, listener.getWorkAcceptedCallCount());
+        Assert.assertEquals(0, listener.getWorkRejectedCallCount());
+        Assert.assertEquals(1, listener.getWorkStartedCallCount());
+        Assert.assertEquals(1, listener.getWorkCompletedCallCount());
+        Assert.assertEquals(1, listener.getWorkExceptions().size());
+    }
+
+    /**
+     * Tests running a mixture of fast and slow jobs on the ThreadPoolWorkManager
+     */
+    @Test
+    public void testMultipleJobs() {
+        // Create the work and register it
+        TimeDelayWork fast1 = new TimeDelayWork(5);
+        TimeDelayWork fast2 = new TimeDelayWork(10);
+        TimeDelayWork fast3 = new TimeDelayWork(20);
+        TimeDelayWork slow1= new TimeDelayWork(200);
+        TimeDelayWork slow2 = new TimeDelayWork(200);
+        TestWorkListener listener = new TestWorkListener();
+        workManager.schedule(fast1, listener);
+        workManager.schedule(fast2, listener);
+        workManager.schedule(fast3, listener);
+        workManager.schedule(slow1, listener);
+        workManager.schedule(slow2, listener);
+
+        // Wait for the 5 jobs to complete
+        waitForWorkToComplete(listener, 5);
+
+        // Test that the job completed successfully.
+        Assert.assertEquals(5, listener.getWorkAcceptedCallCount());
+        Assert.assertEquals(0, listener.getWorkRejectedCallCount());
+        Assert.assertEquals(5, listener.getWorkStartedCallCount());
+        Assert.assertEquals(5, listener.getWorkCompletedCallCount());
+        Assert.assertEquals(0, listener.getWorkExceptions().size());
+    }
+
+    /**
+     * Tests running a mixture of fast and slow jobs some of which fail on the
+     * ThreadPoolWorkManager
+     */
+    @Test
+    public void testMultipleJobsSomeFail() {
+        // Create the work and register it
+        TimeDelayWork fast1 = new TimeDelayWork(5);
+        TimeDelayWork fast2 = new TimeDelayWork(10);
+        TimeDelayWork fast3 = new TimeDelayWork(20);
+        TimeDelayWork slow1= new TimeDelayWork(200);
+        TimeDelayWork slow2 = new TimeDelayWork(200);
+        FailingWork fail1 = new FailingWork();
+        FailingWork fail2 = new FailingWork();
+        TestWorkListener listener = new TestWorkListener();
+        workManager.schedule(fast1, listener);
+        workManager.schedule(fast2, listener);
+        workManager.schedule(fail1, listener);
+        workManager.schedule(fast3, listener);
+        workManager.schedule(slow1, listener);
+        workManager.schedule(fail2, listener);
+        workManager.schedule(slow2, listener);
+
+        // Wait for the 7 jobs to complete
+        waitForWorkToComplete(listener, 7);
+
+        // Test that the job completed successfully.
+        Assert.assertEquals(7, listener.getWorkAcceptedCallCount());
+        Assert.assertEquals(0, listener.getWorkRejectedCallCount());
+        Assert.assertEquals(7, listener.getWorkStartedCallCount());
+        Assert.assertEquals(7, listener.getWorkCompletedCallCount());
+        Assert.assertEquals(2, listener.getWorkExceptions().size());
+    }
+
+    /**
+     * Tests running a single job that has no listener
+     */
+    @Test
+    public void testSingleFastJobWithNoListener() {
+        // Create the work and register it
+        TimeDelayWork fast = new TimeDelayWork(10);
+        workManager.schedule(fast);
+
+        // Wait for the job to complete
+        long startTime = System.currentTimeMillis();
+        while (true) {
+            int completedCount = fast.getRunCompletedCount();
+            if (completedCount == 1) {
+                break;
+            }
+
+            if (System.currentTimeMillis() - startTime > WAIT_TIMEOUT) {
+                Assert.fail("Only " + completedCount + " work items completed before timeout");
+                return;
+            }
+
+            // Lets wait for the job to complete
+            try {
+                Thread.sleep(25);
+            } catch (InterruptedException ex) {
+                Assert.fail("Unexpected exception: " + ex);
+            }
+        }
+
+        // Make sure we have got one completed run
+        Assert.assertEquals(1, fast.getRunCompletedCount());
+    }
+
+    /**
+     * Waits for the specified number of jobs to complete or the timeout to fire.
+     *
+     * @param listener The listener to use to track Work unit completion
+     * @param completedWorkItemsToWaitFor The number of Work items to complete
+     */
+    private void waitForWorkToComplete(TestWorkListener listener, int completedWorkItemsToWaitFor) {
+        long startTime = System.currentTimeMillis();
+        while (true) {
+            int completedCount = listener.getWorkCompletedCallCount();
+            if (completedCount == completedWorkItemsToWaitFor) {
+                return;
+            }
+
+            if (System.currentTimeMillis() - startTime > WAIT_TIMEOUT) {
+                Assert.fail("Only " + completedCount + " work items completed before timeout");
+                return;
+            }
+
+            // Lets wait for more jobs to complete
+            try {
+                Thread.sleep(25);
+            } catch (InterruptedException ex) {
+                Assert.fail("Unexpected exception: " + ex);
+            }
+        }
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/TimeDelayWork.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/TimeDelayWork.java
new file mode 100644
index 0000000000..f6435659ef
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/core/work/impl/TimeDelayWork.java
@@ -0,0 +1,86 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.core.work.impl;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * Simple Work item that will sleep in the run() method for the specified 
+ * period of time
+ * 
+ * @version $Rev$ $Date$
+ */
+public class TimeDelayWork extends Work {
+
+    /**
+     * Count of completed run() method calls
+     */
+    private AtomicInteger runCompletedCount = new AtomicInteger();
+
+    /**
+     * The amount of time to sleep in the Run loop
+     */
+    private final long sleepTime;
+
+    /**
+     * Constructor
+     * 
+     * @param sleepTime The amount of time to sleep (in milliseconds) in the run() method
+     */
+    public TimeDelayWork(long sleepTime) {
+        super(null);
+        this.sleepTime = sleepTime;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public boolean isDaemon() {
+        return false;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void release() {
+    }
+
+    /**
+     * Sleeps for a period of time defined by sleepTime
+     */
+    public void run() {
+        System.out.println("Starting " + this);
+        try {
+            Thread.sleep(sleepTime);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        System.out.println("Done " + this);
+        runCompletedCount.incrementAndGet();
+    }
+
+    /**
+     * Returns the number of completed calls to run()
+     * 
+     * @return The number of completed calls to run()
+     */
+    public int getRunCompletedCount() {
+        return runCompletedCount.get();
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/scope/ScopeTestCase.java b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/scope/ScopeTestCase.java
new file mode 100644
index 0000000000..ca7bf9b3d7
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/java/org/apache/tuscany/sca/scope/ScopeTestCase.java
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.scope;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.apache.tuscany.sca.core.scope.Scope;
+import org.junit.Test;
+/**
+ * @version $Rev$ $Date$
+ */
+public class ScopeTestCase {
+
+    @Test
+    public void testEquals() throws Exception {
+        Scope scope = new Scope("COMPOSITE");
+        assertTrue(scope.equals(Scope.COMPOSITE));
+    }
+
+    @Test
+    public void testEqualsNew() throws Exception {
+        Scope foo = new Scope("foo");
+        Scope foo2 = new Scope("FOO");
+        assertTrue(foo.equals(foo2));
+    }
+
+    @Test
+    public void testNotEquals() throws Exception {
+        Scope foo = new Scope("BAR");
+        Scope foo2 = new Scope("FOO");
+        assertFalse(foo.equals(foo2));
+    }
+
+    @Test
+    public void testNotEqualsDifferent() throws Exception {
+        Scope foo = new Scope("FOO");
+        assertFalse(foo.equals(new Bar("FOO")));
+    }
+
+    public class Bar {
+        String scope;
+
+        public Bar(String scope) {
+            this.scope = scope;
+        }
+    }
+
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/resources/META-INF/services/org.apache.tuscany.sca.invocation.PhaseTest b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/resources/META-INF/services/org.apache.tuscany.sca.invocation.PhaseTest
new file mode 100644
index 0000000000..ad23df3761
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/core/src/test/resources/META-INF/services/org.apache.tuscany.sca.invocation.PhaseTest
@@ -0,0 +1,24 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License. 

+

+name=implementation.last, stage=implementation, after=*

+name=reference.first, stage=reference, before=*

+name=reference.transaction, stage=reference, after=reference.interface

+name=reference.binding.header, stage=reference.binding, after=reference.binding.transport

+name=service.binding.header, stage=service.binding, after=service.binding.transport

+name=service.transaction, stage=service, after=service.binding, before=component.service

+name=implementation.transaction, stage=implementation, before=implementation.policy