Copy modules for event prototype

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@705212 13f79535-47bb-0310-9956-ffa450edef68

19 files changed, 2063 insertions, 0 deletions

diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/DefaultJavaInterfaceFactory.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/DefaultJavaInterfaceFactory.java
new file mode 100644
index 0000000000..7853b597d3
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/DefaultJavaInterfaceFactory.java
@@ -0,0 +1,99 @@
+/*
+ * 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.interfacedef.java;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceFactoryImpl;
+import org.apache.tuscany.sca.interfacedef.java.impl.PolicyJavaInterfaceVisitor;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+
+/**
+ * A factory for the Java interface model.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultJavaInterfaceFactory extends JavaInterfaceFactoryImpl implements JavaInterfaceFactory {
+    private ModelFactoryExtensionPoint modelFactoryExtensionPoint;
+    private boolean loadedVisitors; 
+    
+    public DefaultJavaInterfaceFactory() {
+    }
+    
+    public DefaultJavaInterfaceFactory(ModelFactoryExtensionPoint modelFactoryExtensionPoint) {
+        this.modelFactoryExtensionPoint = modelFactoryExtensionPoint;
+    }
+    
+    @Override
+    public List<JavaInterfaceVisitor> getInterfaceVisitors() {
+        loadVisitors();
+        return super.getInterfaceVisitors();
+    }
+    
+    /**
+     * Load visitors declared under META-INF/services
+     */
+    @SuppressWarnings("unchecked")
+    private void loadVisitors() {
+        if (loadedVisitors)
+            return;
+        
+        if (modelFactoryExtensionPoint != null) {
+            PolicyFactory policyFactory = modelFactoryExtensionPoint.getFactory(PolicyFactory.class);
+            if (policyFactory != null) {
+                addInterfaceVisitor(new PolicyJavaInterfaceVisitor(policyFactory));
+            }
+        }
+        
+        // Get the databinding service declarations
+        Set<ServiceDeclaration> visitorDeclarations; 
+        try {
+            visitorDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(JavaInterfaceVisitor.class);
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
+        
+        // Load data bindings
+        for (ServiceDeclaration visitorDeclaration: visitorDeclarations) {
+            JavaInterfaceVisitor visitor;
+            try {
+                Class<JavaInterfaceVisitor> visitorClass = (Class<JavaInterfaceVisitor>)visitorDeclaration.loadClass();
+                visitor = visitorClass.newInstance();
+            } catch (ClassNotFoundException e) {
+                throw new IllegalArgumentException(e);
+            } catch (InstantiationException e) {
+                throw new IllegalArgumentException(e);
+            } catch (IllegalAccessException e) {
+                throw new IllegalArgumentException(e);
+            }
+            addInterfaceVisitor(visitor);
+        }
+        
+        loadedVisitors = true;
+    }
+
+    
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterface.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterface.java
new file mode 100644
index 0000000000..9c09ef50c2
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterface.java
@@ -0,0 +1,87 @@
+/*
+ * 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.interfacedef.java;
+
+import javax.xml.namespace.QName;
+import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.interfacedef.Interface;
+
+/**
+ * Represents a Java interface.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface JavaInterface extends Interface, Base {
+
+    /**
+     * Returns the name of the Java interface class.
+     * 
+     * @return the name of the Java interface class
+     */
+    String getName();
+
+    /**
+     * Sets the name of the Java interface class.
+     * 
+     * @param className the name of the Java interface class
+     */
+    void setName(String className);
+
+    /**
+     * Returns the QName of the JAX-WS interface.
+     *
+     * @return the QName of the JAX-WS interface
+     */
+    QName getQName();
+
+    /**
+     * Sets the QName of the JAX-WS interface.
+     *
+     * @param interfaceName the QName of the JAX-WS interface
+     */
+    void setQName(QName interfaceName);
+
+    /**
+     * Returns the Java interface class.
+     * 
+     * @return the Java interface class
+     */
+    Class<?> getJavaClass();
+
+    /**
+     * Sets the Java interface class.
+     * 
+     * @param javaClass the Java interface class
+     */
+    void setJavaClass(Class<?> javaClass);
+
+    /**
+     * Returns the callback class specified in an @Callback annotation.
+     * 
+     * @return the callback class specified in an @Callback annotation
+     */
+    Class<?> getCallbackClass();
+
+    /**
+     * Sets the callback class specified in an @Callback annotation.
+     * 
+     * @param callbackClass the callback class specified in an @Callback annotation
+     */
+    void setCallbackClass(Class<?> callbackClass);
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterfaceContract.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterfaceContract.java
new file mode 100644
index 0000000000..e3a84c63f0
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterfaceContract.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.interfacedef.java;
+
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+
+/**
+ * Represents a Java interface contract.
+ * JavaInterfaceContract
+ *
+ * @version $Rev$ $Date$
+ */
+public interface JavaInterfaceContract extends InterfaceContract {
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterfaceFactory.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterfaceFactory.java
new file mode 100644
index 0000000000..9225926269
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaInterfaceFactory.java
@@ -0,0 +1,82 @@
+/*
+ * 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.interfacedef.java;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+
+/**
+ * Factory for the Java interface model
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface JavaInterfaceFactory {
+
+    /**
+     * Creates a new Java interface model.
+     * 
+     * @return
+     */
+    JavaInterface createJavaInterface();
+    
+    /**
+     * Creates a new Java interface model from an interface class.
+     * @param interfaceClass the interface class to introspect.
+     * @return
+     */
+    JavaInterface createJavaInterface(Class<?> interfaceClass) throws InvalidInterfaceException;
+    
+    /**
+     * Creates the contents of a Java interface model from an interface class.
+     * @param javaInterface the Java interface model
+     * @param interfaceClass the interface class to introspect.
+     * @return
+     */
+    void createJavaInterface(JavaInterface javaInterface, Class<?> interfaceClass) throws InvalidInterfaceException;
+    
+    /**
+     * Creates a new Java interface contract.
+     * 
+     * @return
+     */
+    JavaInterfaceContract createJavaInterfaceContract();
+
+    /**
+     * Registers the given visitor.
+     * 
+     * @param visitor
+     */
+    void addInterfaceVisitor(JavaInterfaceVisitor visitor);
+
+    /**
+     * Deregisters the given visitor.
+     * 
+     * @param visitor
+     */
+    void removeInterfaceVisitor(JavaInterfaceVisitor visitor);
+
+    /**
+     * Returns a list of interface visitors.
+     * 
+     * @return
+     */
+    List<JavaInterfaceVisitor> getInterfaceVisitors();
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaOperation.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaOperation.java
new file mode 100644
index 0000000000..e6cb35cc4b
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/JavaOperation.java
@@ -0,0 +1,57 @@
+/*
+ * 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.interfacedef.java;
+
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.interfacedef.Operation;
+
+/**
+ * Represents a Java operation.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface JavaOperation extends Operation {
+
+    /**
+     * Returns the Java method defining the operation.
+     * @return the Java method
+     */
+    Method getJavaMethod();
+    
+    /**
+     * Sets the Java method defining the operation.
+     * @param method the Java method
+     */
+    void setJavaMethod(Method method);
+
+    /**
+     * Returns the JAX-WS @WebMethod action parameter.
+     * @return the action value
+     */
+    String getAction();
+    
+    /**
+     * Sets the JAX-WS @WebMethod action parameter.
+     * @param action the action value
+     */
+    void setAction(String action);
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceContractImpl.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceContractImpl.java
new file mode 100644
index 0000000000..d43ebe558b
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceContractImpl.java
@@ -0,0 +1,39 @@
+/*
+ * 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.interfacedef.java.impl;
+
+import org.apache.tuscany.sca.interfacedef.impl.InterfaceContractImpl;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
+
+/**
+ * Represents a Java interface contract.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaInterfaceContractImpl extends InterfaceContractImpl implements JavaInterfaceContract {
+    
+    protected JavaInterfaceContractImpl() {
+    }
+
+    @Override
+    public JavaInterfaceContractImpl clone() throws CloneNotSupportedException {
+        return (JavaInterfaceContractImpl) super.clone();
+    }
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceFactoryImpl.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceFactoryImpl.java
new file mode 100644
index 0000000000..1454851fb1
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceFactoryImpl.java
@@ -0,0 +1,84 @@
+/*
+ * 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.interfacedef.java.impl;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.WeakHashMap;
+
+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.interfacedef.java.introspect.JavaInterfaceVisitor;
+
+/**
+ * A factory for the Java model.
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class JavaInterfaceFactoryImpl implements JavaInterfaceFactory {
+    
+    private List<JavaInterfaceVisitor> visitors = new ArrayList<JavaInterfaceVisitor>();
+    private JavaInterfaceIntrospectorImpl introspector;
+    private Map<Class<?>, JavaInterface> cache  = Collections.synchronizedMap(new WeakHashMap<Class<?>, JavaInterface>());
+    
+    public JavaInterfaceFactoryImpl() {
+        introspector = new JavaInterfaceIntrospectorImpl(this);
+    }
+
+    public JavaInterface createJavaInterface() {
+        return new JavaInterfaceImpl();
+    }
+    
+    public JavaInterface createJavaInterface(Class<?> interfaceClass) throws InvalidInterfaceException {
+        // TODO: Review if the sharing of JavaInterface is ok
+        synchronized (interfaceClass) {
+            JavaInterface javaInterface = cache.get(interfaceClass);
+            if (javaInterface == null) {
+                javaInterface = createJavaInterface();
+                introspector.introspectInterface(javaInterface, interfaceClass);
+                cache.put(interfaceClass, javaInterface);
+            }
+            return javaInterface;
+        }
+    }
+    
+    public void createJavaInterface(JavaInterface javaInterface, Class<?> interfaceClass) throws InvalidInterfaceException {
+        introspector.introspectInterface(javaInterface, interfaceClass);
+    }
+    
+    public JavaInterfaceContract createJavaInterfaceContract() {
+        return new JavaInterfaceContractImpl();
+    }
+
+    public void addInterfaceVisitor(JavaInterfaceVisitor extension) {
+        visitors.add(extension);
+    }
+
+    public void removeInterfaceVisitor(JavaInterfaceVisitor extension) {
+        visitors.remove(extension);
+    }
+
+    public List<JavaInterfaceVisitor> getInterfaceVisitors() {
+        return visitors;
+    }
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceImpl.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceImpl.java
new file mode 100644
index 0000000000..42e45317b7
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceImpl.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.interfacedef.java.impl;
+
+import javax.xml.namespace.QName;
+import org.apache.tuscany.sca.interfacedef.impl.InterfaceImpl;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+
+/**
+ * Represents a Java interface.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaInterfaceImpl extends InterfaceImpl implements JavaInterface {
+
+    private String className;
+    private Class<?> javaClass;
+    private Class<?> callbackClass;
+    private QName qname;
+    
+    protected JavaInterfaceImpl() {
+    }
+
+    public String getName() {
+        if (isUnresolved()) {
+            return className;
+        } else if (javaClass != null) {
+            return javaClass.getName();
+        } else {
+            return null;
+        }
+    }
+
+    public void setName(String className) {
+        if (!isUnresolved()) {
+            throw new IllegalStateException();
+        }
+        this.className = className;
+    }
+
+    public QName getQName() {
+        return qname;
+    }
+
+    public void setQName(QName interfacename) {
+        qname = interfacename;
+    }
+
+    public Class<?> getJavaClass() {
+        return javaClass;
+    }
+
+    public void setJavaClass(Class<?> javaClass) {
+        this.javaClass = javaClass;
+    }
+    
+    public Class<?> getCallbackClass() {
+        return callbackClass;
+    }
+    
+    public void setCallbackClass(Class<?> callbackClass) {
+        this.callbackClass = callbackClass;
+    }
+    
+    @Override
+    public String toString() {
+        return getName();
+    }
+
+    @Override
+    public int hashCode() {
+        return String.valueOf(getName()).hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        } else if (obj instanceof JavaInterface) {
+            if (getName() != null) {
+                return getName().equals(((JavaInterface)obj).getName());
+            } else {
+                return ((JavaInterface)obj).getName() == null;
+            }
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceIntrospectorImpl.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceIntrospectorImpl.java
new file mode 100644
index 0000000000..b1198824fa
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceIntrospectorImpl.java
@@ -0,0 +1,258 @@
+/*
+ * 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.interfacedef.java.impl;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.lang.reflect.TypeVariable;
+import java.rmi.Remote;
+import java.rmi.RemoteException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.interfacedef.ConversationSequence;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.InvalidCallbackException;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.InvalidOperationException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.OverloadedOperationException;
+import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.java.JavaOperation;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+import org.apache.tuscany.sca.interfacedef.util.JavaXMLMapper;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.osoa.sca.annotations.Conversational;
+import org.osoa.sca.annotations.EndsConversation;
+import org.osoa.sca.annotations.OneWay;
+import org.osoa.sca.annotations.Remotable;
+
+/**
+ * Default implementation of a Java interface introspector.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaInterfaceIntrospectorImpl {
+    public static final String IDL_INPUT = "idl:input";
+
+    private static final String UNKNOWN_DATABINDING = null;
+
+    private List<JavaInterfaceVisitor> visitors = new ArrayList<JavaInterfaceVisitor>();
+
+    public JavaInterfaceIntrospectorImpl(JavaInterfaceFactory javaFactory) {
+        this.visitors = javaFactory.getInterfaceVisitors();
+    }
+
+    public void introspectInterface(JavaInterface javaInterface, Class<?> clazz)
+        throws InvalidInterfaceException {
+        javaInterface.setJavaClass(clazz);
+
+        boolean remotable = clazz.isAnnotationPresent(Remotable.class);
+
+        // Consider @javax.ejb.Remote, java.rmi.Remote and javax.ejb.EJBObject
+        // equivalent to @Remotable
+        if (!remotable) {
+            for (Annotation annotation : clazz.getAnnotations()) {
+                if ("javax.ejb.Remote".equals(annotation.annotationType().getName())) {
+                    remotable = true;
+                    break;
+                }
+            }
+        }
+        if (!remotable) {
+            for (Class<?> superInterface : clazz.getInterfaces()) {
+                if (Remote.class == superInterface || "javax.ejb.EJBObject".equals(superInterface.getName())) {
+                    remotable = true;
+                    break;
+                }
+            }
+        }
+
+        javaInterface.setRemotable(remotable);
+
+        boolean conversational = clazz.isAnnotationPresent(Conversational.class);
+        javaInterface.setConversational(conversational);
+
+        Class<?> callbackClass = null;
+        org.osoa.sca.annotations.Callback callback = clazz.getAnnotation(org.osoa.sca.annotations.Callback.class);
+        if (callback != null && !Void.class.equals(callback.value())) {
+            callbackClass = callback.value();
+            if (remotable && !callbackClass.isAnnotationPresent(Remotable.class)) {
+                throw new InvalidCallbackException("Callback must be remotable on a remotable interface");
+            }
+            if (!remotable && callbackClass.isAnnotationPresent(Remotable.class)) {
+                throw new InvalidCallbackException("Callback must not be remotable on a local interface");
+            }
+        } else if (callback != null && Void.class.equals(callback.value())) {
+            throw new InvalidCallbackException("No callback interface specified on annotation");
+        }
+
+        javaInterface.setCallbackClass(callbackClass);
+
+        String ns = JavaXMLMapper.getNamespace(clazz);
+        javaInterface.getOperations().addAll(getOperations(clazz, remotable, conversational, ns));
+
+        for (JavaInterfaceVisitor extension : visitors) {
+            extension.visitInterface(javaInterface);
+        }
+    }
+
+    private Class<?>[] getActualTypes(Type[] types, Class<?>[] rawTypes, Map<String, Type> typeBindings) {
+        Class<?>[] actualTypes = new Class<?>[types.length];
+        for (int i = 0; i < actualTypes.length; i++) {
+            actualTypes[i] = getActualType(types[i], rawTypes[i], typeBindings);
+        }
+        return actualTypes;
+    }
+
+    private Class<?> getActualType(Type type, Class<?> rawType, Map<String, Type> typeBindings) {
+        if (type instanceof TypeVariable<?>) {
+            TypeVariable<?> typeVariable = (TypeVariable<?>)type;
+            type = typeBindings.get(typeVariable.getName());
+            if (type instanceof Class<?>) {
+                return (Class<?>)type;
+            }
+        }
+        return rawType;
+    }
+
+    private <T> List<Operation> getOperations(Class<T> clazz,
+                                              boolean remotable,
+                                              boolean conversational,
+                                              String ns) throws InvalidInterfaceException {
+
+        Set<Type> genericInterfaces = new HashSet<Type>();
+        for (Type t : clazz.getGenericInterfaces()) {
+            genericInterfaces.add(t);
+        }
+        Map<String, Type> typeBindings = new HashMap<String, Type>();
+        for (Type genericInterface : genericInterfaces) {
+            if (genericInterface instanceof ParameterizedType) {
+                ParameterizedType parameterizedType = (ParameterizedType)genericInterface;
+                TypeVariable<?>[] typeVariables = ((Class<?>)parameterizedType.getRawType()).getTypeParameters();
+                Type[] typeArguments = parameterizedType.getActualTypeArguments();
+                for (int i = 0; i < typeArguments.length; i++) {
+                    typeBindings.put(typeVariables[i].getName(), typeArguments[i]);
+                }
+            }
+        }
+
+        Method[] methods = clazz.getMethods();
+        List<Operation> operations = new ArrayList<Operation>(methods.length);
+        Set<String> names = remotable ? new HashSet<String>() : null;
+        for (Method method : methods) {
+            if (method.getDeclaringClass() == Object.class) {
+                // Skip the methods on the Object.class
+                continue;
+            }
+            String name = method.getName();
+            if (remotable && names.contains(name)) {
+                throw new OverloadedOperationException(method);
+            }
+            if (remotable) {
+                names.add(name);
+            }
+
+            Class<?> returnType = getActualType(method.getGenericReturnType(), method.getReturnType(), typeBindings);
+            Class<?>[] parameterTypes =
+                getActualTypes(method.getGenericParameterTypes(), method.getParameterTypes(), typeBindings);
+            Class<?>[] faultTypes =
+                getActualTypes(method.getGenericExceptionTypes(), method.getExceptionTypes(), typeBindings);
+
+            boolean nonBlocking = method.isAnnotationPresent(OneWay.class);
+            if (nonBlocking) {
+                if (!(returnType == void.class)) {
+                    throw new InvalidOperationException(
+                                                        "Method should return 'void' when declared with an @OneWay annotation. " + method,
+                                                        method);
+                }
+                if (!(faultTypes.length == 0)) {
+                    throw new InvalidOperationException(
+                                                        "Method should not declare exceptions with an @OneWay annotation. " + method,
+                                                        method);
+                }
+            }
+
+            ConversationSequence conversationSequence = ConversationSequence.CONVERSATION_NONE;
+            if (method.isAnnotationPresent(EndsConversation.class)) {
+                if (!conversational) {
+                    throw new InvalidOperationException(
+                                                        "Method is marked as end conversation but contract is not conversational",
+                                                        method);
+                }
+                conversationSequence = ConversationSequence.CONVERSATION_END;
+            } else if (conversational) {
+                conversationSequence = ConversationSequence.CONVERSATION_CONTINUE;
+            }
+
+            // Set outputType to null for void
+            XMLType xmlReturnType = new XMLType(new QName(ns, "return"), null);
+            DataType<XMLType> returnDataType =
+                returnType == void.class ? null : new DataTypeImpl<XMLType>(UNKNOWN_DATABINDING, returnType, method
+                    .getGenericReturnType(), xmlReturnType);
+            List<DataType> paramDataTypes = new ArrayList<DataType>(parameterTypes.length);
+            Type[] genericParamTypes = method.getGenericParameterTypes();
+            for (int i = 0; i < parameterTypes.length; i++) {
+                Class paramType = parameterTypes[i];
+                XMLType xmlParamType = new XMLType(new QName(ns, "arg" + i), null);
+                paramDataTypes.add(new DataTypeImpl<XMLType>(UNKNOWN_DATABINDING, paramType, genericParamTypes[i],
+                                                             xmlParamType));
+            }
+            List<DataType> faultDataTypes = new ArrayList<DataType>(faultTypes.length);
+            Type[] genericFaultTypes = method.getGenericExceptionTypes();
+            for (int i = 0; i < faultTypes.length; i++) {
+                Class<?> faultType = faultTypes[i];
+                // Only add checked exceptions
+                // JAXWS Specification v2.1 section 3.7 says RemoteException should not be mapped
+                if (Exception.class.isAssignableFrom(faultType) && (!RuntimeException.class.isAssignableFrom(faultType))
+                    && (!RemoteException.class.isAssignableFrom(faultType))) {
+                    XMLType xmlFaultType = new XMLType(new QName(ns, faultType.getSimpleName()), null);
+                    DataType<XMLType> faultDataType =
+                        new DataTypeImpl<XMLType>(UNKNOWN_DATABINDING, faultType, genericFaultTypes[i], xmlFaultType);
+                    faultDataTypes.add(new DataTypeImpl<DataType>(UNKNOWN_DATABINDING, faultType, genericFaultTypes[i],
+                                                                  faultDataType));
+                }
+            }
+
+            DataType<List<DataType>> inputType =
+                new DataTypeImpl<List<DataType>>(IDL_INPUT, Object[].class, paramDataTypes);
+            JavaOperation operation = new JavaOperationImpl();
+            operation.setName(name);
+            operation.setInputType(inputType);
+            operation.setOutputType(returnDataType);
+            operation.setFaultTypes(faultDataTypes);
+            operation.setConversationSequence(conversationSequence);
+            operation.setNonBlocking(nonBlocking);
+            operation.setJavaMethod(method);
+            operations.add(operation);
+        }
+        return operations;
+    }
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtil.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtil.java
new file mode 100644
index 0000000000..2a9e3c5329
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtil.java
@@ -0,0 +1,173 @@
+/*
+ * 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.interfacedef.java.impl;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaOperation;
+
+/**
+ * Contains methods for mapping between an operation in a
+ * {@link org.apache.tuscany.spi.model.ServiceContract} and a method defined by
+ * a Java interface
+ * 
+ * @version $Rev$ $Date$
+ */
+public final class JavaInterfaceUtil {
+
+    private JavaInterfaceUtil() {
+    }
+
+    /**
+     * Return the method on the implementation class that matches the operation.
+     * 
+     * @param implClass the implementation class or interface
+     * @param operation the operation to match
+     * @return the method described by the operation
+     * @throws NoSuchMethodException if no such method exists
+     * @Deprecated
+     */
+    public static Method findMethod(Class<?> implClass, Operation operation) throws NoSuchMethodException {
+        String name = operation.getName();
+        if (operation instanceof JavaOperation) {
+            name = ((JavaOperation)operation).getJavaMethod().getName();
+        }
+        Interface interface1 = operation.getInterface();
+        int numParams = operation.getInputType().getLogical().size();
+        if (interface1 != null && interface1.isRemotable()) {
+            List<Method> matchingMethods = new ArrayList<Method>();
+            for (Method m : implClass.getMethods()) {
+                if (m.getName().equals(name) && m.getParameterTypes().length == numParams) {
+                    matchingMethods.add(m);
+                }
+            }
+            
+            // TUSCANY-2180 If there is only one method then we just match on the name 
+            // (this is the same as the existing behaviour)
+            if (matchingMethods.size() == 1) {
+                return matchingMethods.get(0);
+            }
+            if (matchingMethods.size() > 1) {
+                // TUSCANY-2180 We need to check the parameter types too
+                Class<?>[] paramTypes = getPhysicalTypes(operation);
+                return implClass.getMethod(name, paramTypes);
+            }
+            
+            // No matching method found
+            throw new NoSuchMethodException("No matching method for operation " + operation.getName()
+                + " is found on "
+                + implClass);
+        }
+        Class<?>[] paramTypes = getPhysicalTypes(operation);
+        return implClass.getMethod(name, paramTypes);
+    }
+
+    /**
+     * @Deprecated
+     */
+    private static Class<?>[] getPhysicalTypes(Operation operation) {
+        DataType<List<DataType>> inputType = operation.getInputType();
+        if (inputType == null) {
+            return new Class<?>[] {};
+        }
+        List<DataType> types = inputType.getLogical();
+        Class<?>[] javaTypes = new Class<?>[types.size()];
+        for (int i = 0; i < javaTypes.length; i++) {
+            Type physical = types.get(i).getPhysical();
+            if (physical instanceof Class<?>) {
+                javaTypes[i] = (Class<?>)physical;
+            } else {
+                throw new UnsupportedOperationException();
+            }
+        }
+        return javaTypes;
+    }
+
+    /**
+     * Searches a collection of operations for a match against the given method
+     * 
+     * @param method the method to match
+     * @param operations the operations to match against
+     * @return a matching operation or null
+     * @Deprecated
+     */
+    public static Operation findOperation(Method method, Collection<Operation> operations) {
+        for (Operation operation : operations) {
+            if (match(operation, method)) {
+                return operation;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Determines if the given operation matches the given method
+     * 
+     * @return true if the operation matches, false if does not
+     */
+    private static boolean match(Operation operation, Method method) {
+        Class<?>[] params = method.getParameterTypes();
+        DataType<List<DataType>> inputType = operation.getInputType();
+        List<DataType> types = inputType.getLogical();
+        boolean found = true;
+        if (types.size() == params.length && method.getName().equals(operation.getName())) {
+            for (int i = 0; i < params.length; i++) {
+                Class<?> clazz = params[i];
+                if (!clazz.equals(operation.getInputType().getLogical().get(i).getPhysical())) {
+                    found = false;
+                }
+            }
+        } else {
+            found = false;
+        }
+        return found;
+
+    }
+    
+    private static String getPackageName(Class<?> cls) {
+        String name = cls.getName();
+        int index = name.lastIndexOf('.');
+        return index == -1 ? "" : name.substring(0, index);
+    }
+
+    public static String getNamespace(Class<?> cls) {
+        String packageName = getPackageName(cls);
+        if ("".equals(packageName)) {
+            return "";
+        }
+        StringBuffer ns = new StringBuffer("http://");
+        String[] names = packageName.split("\\.");
+        for (int i = names.length - 1; i >= 0; i--) {
+            ns.append(names[i]);
+            if (i != 0) {
+                ns.append('.');
+            }
+        }
+        ns.append('/');
+        return ns.toString();
+    }
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaOperationImpl.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaOperationImpl.java
new file mode 100644
index 0000000000..4384213bf5
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaOperationImpl.java
@@ -0,0 +1,83 @@
+/*
+ * 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.interfacedef.java.impl;
+
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.interfacedef.impl.OperationImpl;
+import org.apache.tuscany.sca.interfacedef.java.JavaOperation;
+
+/**
+ * Represents a Java operation. 
+ *
+ * @version $Rev$ $Date$
+ */
+public class JavaOperationImpl extends OperationImpl implements JavaOperation {
+
+    private Method method;
+    private String action;
+
+    public Method getJavaMethod() {
+        return method;
+    }
+
+    public void setJavaMethod(Method method) {
+        this.method = method;
+    }
+
+    public String getAction() {
+        return action;
+    }
+    
+    public void setAction(String action) {
+        this.action = action;
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = super.hashCode();
+        result = prime * result + ((method == null) ? 0 : method.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (!super.equals(obj))
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        final JavaOperationImpl other = (JavaOperationImpl)obj;
+        if (method == null) {
+            if (other.method != null)
+                return false;
+        } else if (!method.equals(other.method))
+            return false;
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        return method == null ? "null" : method.toGenericString();
+    }
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/PolicyJavaInterfaceVisitor.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/PolicyJavaInterfaceVisitor.java
new file mode 100644
index 0000000000..ed00510a67
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/PolicyJavaInterfaceVisitor.java
@@ -0,0 +1,159 @@
+/*
+ * 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.interfacedef.java.impl;
+
+import java.lang.reflect.Method;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaOperation;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.osoa.sca.annotations.PolicySets;
+import org.osoa.sca.annotations.Requires;
+
+/**
+ * Processes an {@link org.osoa.sca.annotations.Requires} annotation
+ *
+ * @version $Rev$ $Date$
+ */
+public class PolicyJavaInterfaceVisitor implements JavaInterfaceVisitor {
+    private PolicyFactory policyFactory;
+
+    public PolicyJavaInterfaceVisitor(PolicyFactory policyFactory) {
+        super();
+        this.policyFactory = policyFactory;
+    }
+
+    private QName getQName(String intentName) {
+        QName qname;
+        if (intentName.startsWith("{")) {
+            int i = intentName.indexOf('}');
+            if (i != -1) {
+                qname = new QName(intentName.substring(1, i), intentName.substring(i + 1));
+            } else {
+                qname = new QName("", intentName);
+            }
+        } else {
+            qname = new QName("", intentName);
+        }
+        return qname;
+    }
+
+    /**
+     * Read policy intents on the given interface or class 
+     * @param clazz
+     * @param requiredIntents
+     */
+    private void readIntentsAndPolicySets(Class<?> clazz, List<Intent> requiredIntents, List<PolicySet> policySets) {
+        Requires intentAnnotation = clazz.getAnnotation(Requires.class);
+        if (intentAnnotation != null) {
+            String[] intentNames = intentAnnotation.value();
+            if (intentNames.length != 0) {
+                for (String intentName : intentNames) {
+
+                    // Add each intent to the list
+                    Intent intent = policyFactory.createIntent();
+                    intent.setName(getQName(intentName));
+                    requiredIntents.add(intent);
+                }
+            }
+        }
+
+        PolicySets policySetAnnotation = clazz.getAnnotation(PolicySets.class);
+        if (policySetAnnotation != null) {
+            String[] policySetNames = policySetAnnotation.value();
+            if (policySetNames.length != 0) {
+                for (String policySetName : policySetNames) {
+
+                    // Add each intent to the list
+                    PolicySet policySet = policyFactory.createPolicySet();
+                    policySet.setName(getQName(policySetName));
+                    policySets.add(policySet);
+                }
+            }
+        }
+    }
+
+    private void readIntents(Requires intentAnnotation, List<Intent> requiredIntents) {
+        //Requires intentAnnotation = method.getAnnotation(Requires.class);
+        if (intentAnnotation != null) {
+            String[] intentNames = intentAnnotation.value();
+            if (intentNames.length != 0) {
+                //Operation operation = assemblyFactory.createOperation();
+                //operation.setName(method.getName());
+                //operation.setUnresolved(true);
+                for (String intentName : intentNames) {
+
+                    // Add each intent to the list, associated with the
+                    // operation corresponding to the annotated method
+                    Intent intent = policyFactory.createIntent();
+                    intent.setName(getQName(intentName));
+                    //intent.getOperations().add(operation);
+                    requiredIntents.add(intent);
+                }
+            }
+        }
+    }
+
+    private void readPolicySets(PolicySets policySetAnnotation, List<PolicySet> policySets) {
+        if (policySetAnnotation != null) {
+            String[] policySetNames = policySetAnnotation.value();
+            if (policySetNames.length != 0) {
+                //Operation operation = assemblyFactory.createOperation();
+                //operation.setName(method.getName());
+                //operation.setUnresolved(true);
+                for (String policySetName : policySetNames) {
+                    // Add each intent to the list, associated with the
+                    // operation corresponding to the annotated method
+                    PolicySet policySet = policyFactory.createPolicySet();
+                    policySet.setName(getQName(policySetName));
+                    //intent.getOperations().add(operation);
+                    policySets.add(policySet);
+                }
+            }
+        }
+    }
+
+    public void visitInterface(JavaInterface javaInterface) throws InvalidInterfaceException {
+
+        if (javaInterface.getJavaClass() != null) {
+            readIntentsAndPolicySets(javaInterface.getJavaClass(), javaInterface.getRequiredIntents(), javaInterface
+                .getPolicySets());
+
+            // Read intents on the service interface methods 
+            List<Operation> operations = javaInterface.getOperations();
+            for (Operation op : operations) {
+                JavaOperation operation = (JavaOperation)op;
+                Method method = operation.getJavaMethod();
+                if (method.getAnnotation(Requires.class) != null || method.getAnnotation(PolicySets.class) != null) {
+                    readIntents(method.getAnnotation(Requires.class), op.getRequiredIntents());
+                    readPolicySets(method.getAnnotation(PolicySets.class), op.getPolicySets());
+                }
+            }
+        }
+    }
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/introspect/JavaInterfaceVisitor.java b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/introspect/JavaInterfaceVisitor.java
new file mode 100644
index 0000000000..3bc03a528e
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/introspect/JavaInterfaceVisitor.java
@@ -0,0 +1,39 @@
+/*
+ * 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.interfacedef.java.introspect;
+
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+
+/**
+ * Implementations introspect metadata on a Java interface, populating the
+ * corresponding {@link JavaInterface}
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface JavaInterfaceVisitor {
+
+    /**
+     * Visit a java interface
+     * @param javaInterface
+     * @throws InvalidInterfaceException
+     */
+    void visitInterface(JavaInterface javaInterface) throws InvalidInterfaceException;
+
+}
diff --git a/sandbox/event/modules/interface-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory b/sandbox/event/modules/interface-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory
new file mode 100644
index 0000000000..5ba12ec137
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory
@@ -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.interfacedef.java.DefaultJavaInterfaceFactory
\ No newline at end of file
diff --git a/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtilDuplicateRemotableTestCase.java b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtilDuplicateRemotableTestCase.java
new file mode 100644
index 0000000000..14b0577f65
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtilDuplicateRemotableTestCase.java
@@ -0,0 +1,308 @@
+/*
+ * 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.interfacedef.java.impl;
+
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.OverloadedOperationException;
+import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
+import org.apache.tuscany.sca.interfacedef.impl.InterfaceImpl;
+import org.apache.tuscany.sca.interfacedef.impl.OperationImpl;
+import org.apache.tuscany.sca.interfacedef.java.DefaultJavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.osoa.sca.annotations.Remotable;
+
+/**
+ * This test case will test that a Component that has multiple Remotable interfaces
+ * that contain methods with the same name will correctly select the right method.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaInterfaceUtilDuplicateRemotableTestCase extends TestCase {
+
+    /**
+     * Test to get the getTime() method from the LocalTimeService
+     *
+     * @throws Exception Test failed
+     */
+    public void testLocalTimeServiceGetTime() throws Exception {
+        doTestLocalTimeServiceGetTime(LocalTimeService.class);
+    }
+
+    /**
+     * Test to get the getTime() method from the LocalTimeService interface from
+     * the specified class
+     *
+     * @param timeServiceClass The class that implements the LocalTimeService
+     * @throws Exception Test failed
+     */
+    private void doTestLocalTimeServiceGetTime(Class timeServiceClass) throws Exception {
+        // Add a getTime() method
+        Operation operation = newOperation("getTime", LocalTimeService.class);
+
+        Method method = JavaInterfaceUtil.findMethod(timeServiceClass, operation);
+        assertEquals("getTime", method.getName());
+        assertEquals(0, method.getParameterTypes().length);
+    }
+
+    /**
+     * Test to get the getTime(String) method from the WorldTimeService
+     *
+     * @throws Exception Test failed
+     */
+    public void testWorldTimeServiceGetTime() throws Exception {
+        doTestWorldTimeServiceGetTime(WorldTimeService.class);
+    }
+
+    /**
+     * Test to get the getTime(String) method from the WorldTimeService interface from
+     * the specified class
+     *
+     * @param timeServiceClass The class that implements the WorldTimeService
+     * @throws Exception Test failed
+     */
+    private void doTestWorldTimeServiceGetTime(Class timeServiceClass) throws Exception {
+        // Add a getTime(String) method
+        Operation operation = newOperation("getTime", WorldTimeService.class, String.class);
+
+        Method method = JavaInterfaceUtil.findMethod(timeServiceClass, operation);
+        assertEquals("getTime", method.getName());
+        assertEquals(1, method.getParameterTypes().length);
+        assertEquals(String.class, method.getParameterTypes()[0]);
+        }
+
+    /**
+     * Test to get the getTime(int) method from the GMTTimeService
+     *
+     * @throws Exception Test failed
+     */
+    public void testGMTTimeServiceGetTime() throws Exception {
+        doTestGMTTimeServiceGetTime(GMTTimeService.class);
+    }
+
+    /**
+     * Test to get the getTime(int) method from the GMTTimeService interface from
+     * the specified class
+     *
+    * @param timeServiceClass The class that implements the WorldTimeService
+     * @throws Exception Test failed
+     */
+    private void doTestGMTTimeServiceGetTime(Class timeServiceClass) throws Exception {
+        // Add a getTime(String) method
+        Operation operation = newOperation("getTime", GMTTimeService.class, Integer.TYPE);
+
+        Method method = JavaInterfaceUtil.findMethod(timeServiceClass, operation);
+        assertEquals("getTime", method.getName());
+        assertEquals(1, method.getParameterTypes().length);
+        assertEquals(Integer.TYPE, method.getParameterTypes()[0]);
+    }
+
+
+    /**
+     * Test to get the getTime() method from the LocalTimeService on the
+     * TimeServiceImpl class
+     *
+     * @throws Exception Test failed
+     */
+    public void testLocalTimeServiceGetTimeFromTimeServiceImpl() throws Exception {
+        doTestLocalTimeServiceGetTime(TimeServiceImpl.class);
+    }
+
+    /**
+     * Test to get the getTime(String) method from the WorldTimeService on the
+     * TimeServiceImpl class
+     *
+     * @throws Exception Test failed
+     */
+    public void testWorldTimeServiceGetTimeFromTimeServiceImpl() throws Exception {
+        doTestWorldTimeServiceGetTime(TimeServiceImpl.class);
+    }
+
+    /**
+     * Test to get the getTime(int) method from the GMTTimeService
+     *
+     * @throws Exception Test failed
+     */
+    public void testGMTTimeServiceGetTimeFromTimeServiceImpl() throws Exception {
+        doTestGMTTimeServiceGetTime(TimeServiceImpl.class);
+    }
+
+    /**
+     * Creates a new operation with the specified name and parameter types
+     *
+     * @param name The name of the operation
+     * @param operationInterface The interface to which the operation belongs
+     * @param parameterTypes The types of the parameters for this operation
+     * @return An operation with the specified name and parameter types
+     */
+    private static Operation newOperation(String name, Class operationInterface, Class... parameterTypes) {
+        // Create and set the operation name
+        Operation operation = new OperationImpl();
+        operation.setName(name);
+
+        // Make the operation remotable
+        Interface iface = new InterfaceImpl();
+        iface.setRemotable(true);
+        operation.setInterface(iface);
+
+        // Construct the parameters
+        List<DataType> types = new ArrayList<DataType>();
+        DataType<List<DataType>> inputType = new DataTypeImpl<List<DataType>>(Object[].class, types);
+        for (Class parameterType : parameterTypes) {
+            DataType type = new DataTypeImpl<Class>(parameterType, Object.class);
+            types.add(type);
+        }
+        operation.setInputType(inputType);
+
+        // Return the created operation
+        return operation;
+    }
+
+    /**
+     * Test case that validates that a @Remotable interface with Overloaded operations
+     * is detected.
+     * 
+     * This test case is for TUSCANY-2194
+     */
+    public void testDuplicateOpeartionOnRemotableInterface()
+    {
+        JavaInterfaceFactory javaFactory = new DefaultJavaInterfaceFactory();
+        JavaInterfaceIntrospectorImpl introspector = new JavaInterfaceIntrospectorImpl(javaFactory);
+        JavaInterfaceImpl javaInterface = new JavaInterfaceImpl();
+
+        try {
+            introspector.introspectInterface(javaInterface, DuplicateMethodOnRemotableInterface.class);
+            Assert.fail("Should have thrown an exception as @Remotable interface has overloaded methods");
+        } catch (OverloadedOperationException ex) {
+            // As expected
+            // Make sure that the class and method names are in the exception
+            String exMsg = ex.toString();
+            Assert.assertTrue("Method name missing from exception", exMsg.indexOf("aDuplicateMethod") != -1);
+            Assert.assertTrue("Class name missing from exception", 
+                exMsg.indexOf(DuplicateMethodOnRemotableInterface.class.getName()) != -1);
+        } catch (InvalidInterfaceException ex) {
+            // Should have thrown OverloadedOperationException
+            Assert.fail("Should have thrown an OverloadedOperationException but threw " + ex);
+        }
+    }
+
+
+    /**
+     * Sample @Remotable interface that has an overloaded operation which is not 
+     * allowed according to the SCA Assembly Specification.
+     */
+    @Remotable
+    private interface DuplicateMethodOnRemotableInterface {
+        void aNonDuplicateMethod();
+        void aDuplicateMethod();
+        void aDuplicateMethod(String aParam);
+    }
+
+
+    /**
+     * Sample interface needed for the unit tests
+     */
+    @Remotable
+    private interface LocalTimeService {
+
+        /**
+         * Gets the local time
+         *
+         * @return The Local Time
+         */
+        String getTime();
+    }
+
+    /**
+     * Sample interface needed for the unit tests
+     */
+    @Remotable
+    private interface WorldTimeService {
+
+        /**
+         * Gets the time in the specified TimeZone
+         *
+         * @param timeZone A Time Zone
+         *
+         * @return The time in the specified TimeZone
+         */
+        String getTime(String timeZone);
+    }
+
+    /**
+     * Sample interface needed for the unit tests
+     */
+    @Remotable
+    private interface GMTTimeService {
+
+        /**
+         * Gets the time with the specified GMT offset
+         *
+         * @param gmtOffset A GMT offset in hours
+         *
+         * @return The time with the specified GMT offset
+         */
+        String getTime(int gmtOffset);
+    }
+
+    /**
+     * Sample implementation class that implements the three @Remotable interfaces
+     */
+    private class TimeServiceImpl implements LocalTimeService, WorldTimeService, GMTTimeService {
+        /**
+         * Gets the local time
+         *
+         * @return The Local Time
+         */
+        public String getTime() {
+            return "The current local time";
+        }
+
+        /**
+         * Gets the time in the specified TimeZone
+         *
+         * @param timeZone A Time Zone
+         *
+         * @return The time in the specified TimeZone
+         */
+        public String getTime(String timeZone) {
+            return "The current time in TimeZone " + timeZone;
+        }
+
+        /**
+         * Gets the time with the specified GMT offset
+         *
+         * @param gmtOffset A GMT offset in hours
+         *
+         * @return The time with the specified GMT offset
+         */
+        public String getTime(int gmtOffset) {
+            return "The current time with GMT offset of " + gmtOffset;
+        }
+    }
+}
diff --git a/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtilTestCase.java b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtilTestCase.java
new file mode 100644
index 0000000000..66f98adce3
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaInterfaceUtilTestCase.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.interfacedef.java.impl;
+
+import static org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil.findOperation;
+
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
+import org.apache.tuscany.sca.interfacedef.impl.OperationImpl;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class JavaInterfaceUtilTestCase extends TestCase {
+    private List<Operation> operations;
+
+    public void testNoParamsFindOperation() throws Exception {
+        Method method = Foo.class.getMethod("foo");
+        Operation ret = findOperation(method, operations);
+        assertEquals("foo", ret.getName());
+        assertEquals(0, method.getParameterTypes().length);
+    }
+
+    public void testParamsFindOperation() throws Exception {
+        Method method = Foo.class.getMethod("foo", String.class);
+        Operation ret = findOperation(method, operations);
+        assertEquals("foo", ret.getName());
+        assertEquals(String.class, method.getParameterTypes()[0]);
+    }
+
+    public void testPrimitiveParamFindOperation() throws NoSuchMethodException {
+        Method method = Foo.class.getMethod("foo", Integer.TYPE);
+        Operation operation = findOperation(method, operations);
+        assertEquals(Integer.TYPE, operation.getInputType().getLogical().get(0).getPhysical());
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        Operation operation = newOperation("foo");
+        List<DataType> types = new ArrayList<DataType>();
+        DataType<List<DataType>> inputType = new DataTypeImpl<List<DataType>>(Object[].class, types);
+        operation.setInputType(inputType);
+
+        operations = new ArrayList<Operation>();
+        operations.add(operation);
+
+        types = new ArrayList<DataType>();
+        inputType = new DataTypeImpl<List<DataType>>(Object[].class, types);
+        DataType type = new DataTypeImpl<Class>(String.class, Object.class);
+        types.add(type);
+        operation = newOperation("foo");
+        operation.setInputType(inputType);
+        operations.add(operation);
+
+        types = new ArrayList<DataType>();
+        type = new DataTypeImpl<Class>(String.class, Object.class);
+        DataType type2 = new DataTypeImpl<Class>(String.class, Object.class);
+        types.add(type);
+        types.add(type2);
+        inputType = new DataTypeImpl<List<DataType>>(Object[].class, types);
+        operation = newOperation("foo");
+        operation.setInputType(inputType);
+        operations.add(operation);
+
+        types = new ArrayList<DataType>();
+        type = new DataTypeImpl<Class>(Integer.class, Object.class);
+        types.add(type);
+        inputType = new DataTypeImpl<List<DataType>>(Object[].class, types);
+        operation = newOperation("foo");
+        operation.setInputType(inputType);
+        operations.add(operation);
+
+        types = new ArrayList<DataType>();
+        type = new DataTypeImpl<Class>(Integer.TYPE, Object.class);
+        types.add(type);
+        inputType = new DataTypeImpl<List<DataType>>(Object[].class, types);
+        operation = newOperation("foo");
+        operation.setInputType(inputType);
+        operations.add(operation);
+
+    }
+
+    private interface Foo {
+        void foo();
+
+        void foo(String foo);
+
+        void foo(int b);
+    }
+
+    private static Operation newOperation(String name) {
+        Operation operation = new OperationImpl();
+        operation.setName(name);
+        return operation;
+    }
+}
diff --git a/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/ConversationalIntrospectionTestCase.java b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/ConversationalIntrospectionTestCase.java
new file mode 100644
index 0000000000..f90a5cb8a1
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/ConversationalIntrospectionTestCase.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.interfacedef.java.introspection.impl;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.interfacedef.ConversationSequence;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InvalidOperationException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.DefaultJavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.osoa.sca.annotations.Conversational;
+import org.osoa.sca.annotations.EndsConversation;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class ConversationalIntrospectionTestCase extends TestCase {
+    private JavaInterfaceFactory javaFactory;
+    
+    @Override
+    protected void setUp() throws Exception {
+        javaFactory = new DefaultJavaInterfaceFactory();
+    }
+
+    private Operation getOperation(Interface i, String name) {
+        for (Operation op : i.getOperations()) {
+            if (op.getName().equals(name)) {
+                return op;
+            }
+        }
+        return null;
+    }
+
+    public void testServiceContractConversationalInformationIntrospection() throws Exception {
+        Interface i = javaFactory.createJavaInterface(Foo.class);
+        assertNotNull(i);
+        assertTrue(i.isConversational());
+        ConversationSequence seq = getOperation(i, "operation").getConversationSequence();
+        assertEquals(ConversationSequence.CONVERSATION_CONTINUE, seq);
+        seq = getOperation(i, "endOperation").getConversationSequence();
+        assertEquals(ConversationSequence.CONVERSATION_END, seq);
+    }
+
+    public void testBadServiceContract() throws Exception {
+        try {
+            javaFactory.createJavaInterface(BadFoo.class);
+            fail();
+        } catch (InvalidOperationException e) {
+            // expected
+        }
+    }
+
+    public void testNonConversationalInformationIntrospection() throws Exception {
+        Interface i = javaFactory.createJavaInterface(NonConversationalFoo.class);
+        assertFalse(i.isConversational());
+        ConversationSequence seq = getOperation(i, "operation")
+            .getConversationSequence();
+        assertEquals(ConversationSequence.CONVERSATION_NONE, seq);
+    }
+
+    @Conversational
+    private interface Foo {
+        void operation();
+
+        @EndsConversation
+        void endOperation();
+    }
+
+    private interface BadFoo {
+        void operation();
+
+        @EndsConversation
+        void endOperation();
+    }
+
+    private interface NonConversationalFoo {
+        void operation();
+    }
+
+}
diff --git a/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/JavaInterfaceProcessorRegistryImplTestCase.java b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/JavaInterfaceProcessorRegistryImplTestCase.java
new file mode 100644
index 0000000000..14ac8b0134
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/JavaInterfaceProcessorRegistryImplTestCase.java
@@ -0,0 +1,107 @@
+/*
+ * 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.interfacedef.java.introspection.impl;
+
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expectLastCall;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.verify;
+
+import java.io.IOException;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.DefaultJavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.easymock.EasyMock;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class JavaInterfaceProcessorRegistryImplTestCase extends TestCase {
+    private JavaInterfaceFactory factory;
+
+    @SuppressWarnings("unchecked")
+    public void testSimpleInterface() throws InvalidInterfaceException {
+        JavaInterface intf = factory.createJavaInterface(Simple.class);
+
+        assertEquals(Simple.class, intf.getJavaClass());
+        List<Operation> operations = intf.getOperations();
+        assertEquals(1, operations.size());
+        Operation baseInt = operations.get(0);
+        assertEquals("baseInt", baseInt.getName());
+
+        QName element = new QName("http://impl.introspection.java.interfacedef.sca.tuscany.apache.org/", "return");
+
+        DataType<XMLType> returnType = baseInt.getOutputType();
+        assertEquals(Integer.TYPE, returnType.getPhysical());
+        assertEquals(element, returnType.getLogical().getElementName());
+
+        List<DataType> parameterTypes = baseInt.getInputType().getLogical();
+        assertEquals(1, parameterTypes.size());
+        DataType<XMLType> arg0 = parameterTypes.get(0);
+        assertEquals(Integer.TYPE, arg0.getPhysical());
+        
+        element = new QName("http://impl.introspection.java.interfacedef.sca.tuscany.apache.org/", "arg0");
+        assertEquals(element, arg0.getLogical().getElementName());
+
+        List<DataType> faultTypes = baseInt.getFaultTypes();
+        assertEquals(1, faultTypes.size());
+        DataType<DataType<XMLType>> fault0 = faultTypes.get(0);
+        assertEquals(IOException.class, fault0.getPhysical());
+        element = new QName("http://impl.introspection.java.interfacedef.sca.tuscany.apache.org/", "IOException");
+        assertEquals(element, fault0.getLogical().getLogical().getElementName());
+    }
+
+    public void testUnregister() throws Exception {
+        JavaInterfaceVisitor extension = createMock(JavaInterfaceVisitor.class);
+        extension.visitInterface(EasyMock.isA(JavaInterface.class));
+        expectLastCall().once();
+        replay(extension);
+        factory.addInterfaceVisitor(extension);
+        factory.createJavaInterface(Base.class);
+        factory.removeInterfaceVisitor(extension);
+        factory.createJavaInterface(Base.class);
+        verify(extension);
+    }
+    
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        factory = new DefaultJavaInterfaceFactory();
+
+    }
+
+    private static interface Base {
+        int baseInt(int param) throws IllegalArgumentException, IOException;
+    }
+
+    private static interface Simple extends Base {
+
+    }
+}
diff --git a/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/PolicyProcessorTestCase.java b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/PolicyProcessorTestCase.java
new file mode 100644
index 0000000000..5a454f176c
--- /dev/null
+++ b/sandbox/event/modules/interface-java/src/test/java/org/apache/tuscany/sca/interfacedef/java/introspection/impl/PolicyProcessorTestCase.java
@@ -0,0 +1,108 @@
+/*
+ * 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.interfacedef.java.introspection.impl;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.interfacedef.java.DefaultJavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.interfacedef.java.impl.PolicyJavaInterfaceVisitor;
+import org.apache.tuscany.sca.policy.DefaultPolicyFactory;
+import org.osoa.sca.annotations.PolicySets;
+import org.osoa.sca.annotations.Requires;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class PolicyProcessorTestCase extends TestCase {
+    private JavaInterfaceFactory factory = new DefaultJavaInterfaceFactory();
+    private PolicyJavaInterfaceVisitor policyProcessor;
+
+    public void testInterfaceLevel() throws Exception {
+        JavaInterface type = factory.createJavaInterface(Interface1.class);
+        policyProcessor.visitInterface(type);
+        assertEquals(1, type.getRequiredIntents().size());
+        assertEquals(1, type.getPolicySets().size());
+    }
+
+    public void testMethodLevel() throws Exception {
+        JavaInterface type = factory.createJavaInterface(Interface2.class);
+        policyProcessor.visitInterface(type);
+        assertEquals(0, type.getRequiredIntents().size());
+        assertEquals(1, type.getOperations().get(0).getRequiredIntents().size());
+        assertEquals(1, type.getOperations().get(1).getRequiredIntents().size());
+        assertEquals(0, type.getPolicySets().size());
+        assertEquals(1, type.getOperations().get(0).getPolicySets().size());
+        assertEquals(1, type.getOperations().get(1).getPolicySets().size());
+    }
+
+    public void testInterfaceAndMethodLevel() throws Exception {
+        JavaInterface type = factory.createJavaInterface(Interface3.class);
+        policyProcessor.visitInterface(type);
+        assertEquals(1, type.getRequiredIntents().size());
+        assertEquals(1, type.getOperations().get(0).getRequiredIntents().size());
+        assertEquals(1, type.getOperations().get(1).getRequiredIntents().size());
+        assertEquals(1, type.getPolicySets().size());
+        assertEquals(1, type.getOperations().get(0).getPolicySets().size());
+        assertEquals(1, type.getOperations().get(1).getPolicySets().size());
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        policyProcessor = new PolicyJavaInterfaceVisitor(new DefaultPolicyFactory());
+    }
+
+    // @Remotable
+    @Requires( {"transaction.global"})
+    @PolicySets( {"{http://ns1}PS1"})
+    private interface Interface1 {
+        int method1();
+
+        int method2();
+
+        int method3();
+
+        int method4();
+    }
+
+    private interface Interface2 {
+        @Requires( {"transaction.global"})
+        @PolicySets( {"{http://ns1}PS1"})
+        int method1();
+
+        @Requires( {"transaction.local"})
+        @PolicySets( {"{http://ns1}PS2"})
+        int method2();
+    }
+
+    @Requires( {"transaction.global.Interface6"})
+    @PolicySets( {"{http://ns1}PS1"})
+    private interface Interface3 {
+        @Requires( {"transaction.global.Interface6.method1"})
+        @PolicySets( {"{http://ns1}PS2"})
+        int method1();
+
+        @Requires( {"transaction.local.Interface6.method2"})
+        @PolicySets( {"{http://ns1}PS3"})
+        int method2();
+    }
+
+}