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diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/BPELExtensionHandler.java b/sca-java-2.x/tags/2.0.1-RC1/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/BPELExtensionHandler.java
new file mode 100644
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--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/BPELExtensionHandler.java
@@ -0,0 +1,142 @@
+/*
+ * 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.wsdl.xml;
+
+import java.io.PrintWriter;
+
+import javax.wsdl.Definition;
+import javax.wsdl.WSDLException;
+import javax.wsdl.extensions.ExtensibilityElement;
+import javax.wsdl.extensions.ExtensionDeserializer;
+import javax.wsdl.extensions.ExtensionRegistry;
+import javax.wsdl.extensions.ExtensionSerializer;
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.interfacedef.wsdl.BPELPartnerLinkTypeExt;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+
+/**
+ * A WSDL extension processor for extension elements introduced by BPEL - in particular
+ * the <partnerLinkType.../> elements
+ * 
+ * Handles both BPEL 1.1 and BPEL 2.0 version of the <partnerLinkType/>
+ * @version $Rev$ $Date$
+ */
+public class BPELExtensionHandler implements ExtensionSerializer, ExtensionDeserializer {
+
+	private final String localName = "partnerLinkType";
+	private final String roleName = "role";
+
+	/**
+	 * Marshals the BPEL partner link type extension element to XML
+	 * See (@link javax.wsdl.extensions.ExtensionSerializer)
+	 */
+	@SuppressWarnings("unchecked")
+	public void marshall(Class parentType, QName elementType, ExtensibilityElement theElement,
+			PrintWriter writer, Definition def, ExtensionRegistry extReg)
+			throws WSDLException {
+		// The format of the Partner Link Type in XML is as follows:
+		// <foo:partnerLinkType name="bar">
+		//    <foo:role name="somename" portType="xyz:portTypeName"/>
+		//    <foo:role name="othername" portType="xyz:portTypeName2"/>
+		// <foo:partnerLinkType>
+		BPELPartnerLinkTypeExt thePLinkType = (BPELPartnerLinkTypeExt) theElement;
+		QName theType = thePLinkType.getElementType();
+
+		writer.println("<" + theType.toString() +
+				       " name=\"" + thePLinkType.getName() + "\">");
+		for( int i = 0; i < 2; i++ ) {
+			if( thePLinkType.getRoleName( i ) != null ) {
+				writer.println( "<" + theType.getPrefix() + ":role"
+						       + " name=\"" + thePLinkType.getRoleName(i) + "\" portType=\""
+						       + thePLinkType.getRolePortType(i) + "\">");
+			} // end if
+		} // end for
+		writer.println("</" + theType.toString() + ">");
+	} // end marshall
+
+	/**
+	 * Unmarshals the BPEL partner link type element from XML
+	 * See (@link javax.wsdl.extensions.ExtensionDeserializer)
+	 * The format of the Partner Link Type in XML is as follows:
+	 *   <foo:partnerLinkType name="bar">
+	 *       <foo:role name="somename" portType="xyz:portTypeName"/>
+	 *       <foo:role name="othername" portType="xyz:portTypeName2"/>
+	 *   <foo:partnerLinkType>
+	 *
+	 *   One role is mandatory, the second is optional.
+	 */
+	@SuppressWarnings("unchecked")
+	public ExtensibilityElement unmarshall(Class theClass, QName elementType,
+			Element theElement, Definition def, ExtensionRegistry extReg)
+			throws WSDLException {
+
+		// Check that this elementType really is a partnerLinkType element
+		if( !elementType.getLocalPart().equals(localName) ) return null;
+		BPELPartnerLinkTypeExt theExtension = new BPELPartnerLinkTypeExt();
+		theExtension.setElementType(elementType);
+		theExtension.setName( theElement.getAttribute("name") );
+
+		// Fetch the child "role" elements
+		NodeList theRoles = theElement.getElementsByTagNameNS("*", roleName);
+		for ( int i=0; i < theRoles.getLength(); i++ ) {
+			if( i > 1 ) break;
+			Element roleNode = (Element)theRoles.item(i);
+			String roleName = roleNode.getAttribute("name");
+			String portType = roleNode.getAttribute("portType");
+			if (portType == null || portType.length() == 0) {
+			    // Fetch the child "portType" element
+			    NodeList portTypesNodes = roleNode.getElementsByTagNameNS("*", "portType");
+			    for (int p = 0; p < portTypesNodes.getLength(); p++) {
+			        Element portTypeNode = (Element)portTypesNodes.item(p);
+	                        portType = portTypeNode.getAttribute("name");
+			        break;
+			    }
+			}
+                        // The PortType attribute is a QName in prefix:localName format - convert to a QName
+                        QName rolePortType = getQNameValue( def, portType );
+			theExtension.setRole( i, roleName, rolePortType );
+		} // end for
+		return theExtension;
+	} // end unmarshall
+
+
+    /**
+     * Returns a QName from a string.
+     * @param definition - a WSDL Definition
+     * @param value - the String from which to form the QName in the form "pref:localName"
+     * @return
+     */
+    protected QName getQNameValue(Definition definition, String value) {
+        if (value != null && definition != null) {
+            int index = value.indexOf(':');
+            String prefix = index == -1 ? "" : value.substring(0, index);
+            String localName = index == -1 ? value : value.substring(index + 1);
+            String ns = definition.getNamespace(prefix);
+            if (ns == null) {
+                ns = "";
+            }
+            return new QName(ns, localName, prefix);
+        } else {
+            return null;
+        }
+    } // end getQNameValue
+
+} // end BPELExtensionHandler