Hi, Two webservices are working independly with out any error. But I am getting the following error when one service call another using JBPM BPEL. The error is | 17:10:22,393 WARN [ProxyWarnLog] Narrowing proxy to class org.jbpm.bpel.graph.def.CompositeActivity - this operation bre | 17:10:22,503 ERROR [StartListener] could not start process instance | org.jbpm.graph.def.DelegationException | at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:367) | at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358) | at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358) | at org.jbpm.graph.def.GraphElement$$FastClassByCGLIB$$7a7d6aa6.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.bpel.graph.def.CompositeActivity$$EnhancerByCGLIB$$bd010414.raiseException(<generated>) | at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358) | at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358) | at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358) | at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:110) | at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$a0328789.enter(<generated>) | at org.jbpm.graph.def.Transition.take(Transition.java:151) | at org.jbpm.graph.def.Node.leave(Node.java:393) | at org.jbpm.bpel.graph.def.Activity.leave(Activity.java:184) | at org.jbpm.bpel.graph.basic.Assign.execute(Assign.java:55) | at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105) | at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$a0328789.enter(<generated>) | at org.jbpm.graph.def.Transition.take(Transition.java:151) | at org.jbpm.graph.def.Node.leave(Node.java:393) | at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.bpel.graph.struct.StructuredActivity$Begin$$EnhancerByCGLIB$$d93a6ab7.leave(<generated>) | at org.jbpm.bpel.graph.struct.StructuredActivity.execute(StructuredActivity.java:58) | at org.jbpm.bpel.graph.struct.StructuredActivity$Begin.leave(StructuredActivity.java:222) | at org.jbpm.graph.def.Node.execute(Node.java:349) | at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105) | at org.jbpm.bpel.graph.def.Activity$$FastClassByCGLIB$$bf3a65c2.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.bpel.graph.struct.StructuredActivity$Begin$$EnhancerByCGLIB$$d93a6ab7.enter(<generated>) | at org.jbpm.graph.def.Transition.take(Transition.java:151) | at org.jbpm.graph.def.Node.leave(Node.java:393) | at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.bpel.graph.struct.StructuredActivity$Begin$$EnhancerByCGLIB$$d93a6ab7.leave(<generated>) | at org.jbpm.bpel.graph.struct.Flow.execute(Flow.java:73) | at org.jbpm.bpel.graph.struct.StructuredActivity$Begin.leave(StructuredActivity.java:222) | at org.jbpm.graph.def.Node.execute(Node.java:349) | at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105) | at org.jbpm.bpel.graph.def.Activity$$FastClassByCGLIB$$bf3a65c2.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.bpel.graph.struct.StructuredActivity$Begin$$EnhancerByCGLIB$$d93a6ab7.enter(<generated>) | at org.jbpm.graph.def.Transition.take(Transition.java:151) | at org.jbpm.graph.def.Node.leave(Node.java:393) | at org.jbpm.bpel.graph.def.Activity.leave(Activity.java:184) | at org.jbpm.bpel.graph.struct.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:66) | at org.jbpm.bpel.graph.basic.Receive.accept(Receive.java:81) | at org.jbpm.bpel.graph.basic.Receive$$FastClassByCGLIB$$29d34f79.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.bpel.graph.basic.Receive$$EnhancerByCGLIB$$cd51d5f6.accept(<generated>) | at org.jbpm.bpel.graph.struct.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:100) | at org.jbpm.bpel.graph.struct.Sequence.accept(Sequence.java:104) | at org.jbpm.bpel.graph.def.Activity$$FastClassByCGLIB$$bf3a65c2.invoke(<generated>) | at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163) | at org.jbpm.bpel.graph.def.Activity$$EnhancerByCGLIB$$d9cb99c1.accept(<generated>) | at org.jbpm.bpel.graph.struct.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:54) | at org.jbpm.bpel.graph.def.BpelDefinition.messageReceived(BpelDefinition.java:111) | at org.jbpm.bpel.integration.jms.StartListener.onMessage(StartListener.java:124) | at org.jboss.mq.SpyMessageConsumer.run(SpyMessageConsumer.java:694) | at java.lang.Thread.run(Thread.java:595) | Caused by: java.lang.NullPointerException | at org.jbpm.bpel.endpointref.SoapEndpointReference.selectPort(SoapEndpointReference.java:100) | at org.jbpm.bpel.integration.jms.IntegrationControl.getPartnerClient(IntegrationControl.java:220) | at org.jbpm.bpel.integration.jms.JmsIntegrationService.invoke(JmsIntegrationService.java:232) | at org.jbpm.bpel.graph.basic.Invoke.execute(Invoke.java:46) | at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105) | ... 61 more | The process is one service takes a string input and pass it the second one and the second one gets it returns the same string and passes to the 1st one's output variable. The bpel file is given below, | <?xml version="1.0" encoding="UTF-8"?> | <process name="BatchProductBusiness" targetNamespace="http://jbpm.org/examples/bestlinkage" | xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/" | xmlns:tns="http://jbpm.org/examples/bestlinkage" | xmlns:bpel="http://schemas.xmlsoap.org/ws/2003/03/business-process/&... | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | xsi:schemaLocation="http://schemas.xmlsoap.org/ws/2003/03/business-p... | http://schemas.xmlsoap.org/ws/2003/03/business-process/"> | | <partnerLinks> | <!-- establishes the relationship with the caller agent --> | <partnerLink name="caller" partnerLinkType="tns:BatchProduct-Caller" | myRole="BatchProduct" /> | | <partnerLink name="fileread" partnerLinkType="tns:filereadLT" | partnerRole="FileRead" /> | | </partnerLinks> | | <variables> | <!-- holds the incoming message --> | <variable name="request" messageType="tns:nameMessage" /> | <!-- holds the outgoing message --> | <variable name="response" messageType="tns:greetingMessage" /> | <variable name="getDunsDocumentRequest" messageType="tns:fileReadRequestMessage" /> | <variable name="getDunsDocumentResponse" messageType="tns:fileReadResponseMessage" /> | | </variables> | | <sequence> | | <!-- receive the name of a person --> | <receive operation="sayHello" partnerLink="caller" portType="tns:BatchProduct" | variable="request" createInstance="yes" /> | | | <flow> | <sequence> | | | | <assign> | <copy> | <from variable="request" part="name" /> | <to variable="getDunsDocumentRequest" part="getDunsDocumentRequest" /> | </copy> | </assign> | | | <invoke partnerLink="fileread" portType="tns:FileRead" | operation="getDunsDocument" inputVariable="getDunsDocumentRequest" | outputVariable="getDunsDocumentResponse"> | </invoke> | | <assign> | <copy> | <from variable="getDunsDocumentResponse" part="getDunsDocumentResponse" /> | <to variable="response" part="greeting" /> | </copy> | </assign> | </sequence> | </flow> | | | <!-- reply with the greeting --> | <reply operation="sayHello" partnerLink="caller" portType="tns:BatchProduct" | variable="response" /> | </sequence> | | </process> | Please help in fixing this issue. Thanks & Regards, Ram View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4060798#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...