[jboss-user] [JBoss jBPM] - Simple WS <invoke> causes NullPointerException. Why?? Please

pkovgan do-not-reply at jboss.com
Tue Nov 14 11:05:45 EST 2006 

Hi!

I have extended hello example by my invoke to my web service.

and I failed to invoke my web service.
I know exacly, that I failed upon invoked, I checked it!

Please, help!!!


I do receive, assign, invoke, reply.

hello.bpel:


  | <?xml version="1.0" encoding="UTF-8"?>
  | <process name="HelloWorld" 
  | targetNamespace="http://jbpm.org/examples/hello"
  |   xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
  |   xmlns:tns="http://jbpm.org/examples/hello"
  |   xmlns:bpel="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
  |   xmlns:apns="http://client/com/sap/xtp/customer"
  |   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  |   xsi:schemaLocation="http://schemas.xmlsoap.org/ws/2003/03/business-process/
  |       http://schemas.xmlsoap.org/ws/2003/03/business-process/">
  |       
  |   <partnerLinks>
  |     <partnerLink name="caller" partnerLinkType="tns:Greeter-Caller"
  |       myRole="Greeter" />
  |     <partnerLink name="customer" partnerLinkType="tns:Customer-LinkType"
  |       partnerRole="Customer" />
  |   </partnerLinks>
  | 
  |   
  | 
  |   <variables>
  |     <variable name="request" messageType="tns:nameMessage" />
  |     <variable name="response" messageType="tns:greetingMessage" />
  |     <variable name="requestToCustomer" messageType="apns:createRequest" />
  |     <variable name="responseFromCustomer" messageType="apns:createResponse" />
  |   </variables>
  | 
  | 
  | 
  | 
  | 
  |   <sequence>
  | 
  |     <!-- receive the name of a person -->
  |     <receive operation="sayHello" partnerLink="caller" portType="tns:Greeter"
  |       variable="request" createInstance="yes" />
  | 
  |     <!-- compose a greeting phrase -->
  |    <assign>
  |       <copy>
  |           <from expression="concat('Name:',bpel:getVariableData('request', 'name'))" />
  |           <to variable="requestToCustomer" part="customerName" />
  |       </copy>
  |       <copy>
  |           <from expression="concat('Description:',bpel:getVariableData('request', 'name'))" />
  |           <to variable="requestToCustomer" part="description" />
  |       </copy>
  |       <copy>
  |         <from expression="concat('Address:',bpel:getVariableData('request', 'name'))" />
  |         <to variable="requestToCustomer" part="address" />
  |       </copy>
  |     </assign>
  |     
  |     <invoke name="create"  operation="create" partnerLink="customer" portType="apns:CustomerService" inputVariable="requestToCustomer"  outputVariable="responseFromCustomer"   />
  |     
  | <!-- compose a greeting phrase -->
  |     <assign>
  |       <copy>
  |         <from expression="concat('Hello, ', 
  |             bpel:getVariableData('request', 'name'), '!')" />
  |         <to variable="response" part="greeting" />
  |       </copy>
  |     </assign>
  | 
  | 
  |     <!-- reply with the greeting -->
  |     <reply operation="sayHello" partnerLink="caller" portType="tns:Greeter"
  |       variable="response" />
  |   </sequence>
  | 
  | </process>
  | 

My web service deployed , using axis 1.3 and works on the same jboss instance, where my BP deployed.

And my hello.wsdl is like this:


  | <?xml version="1.0" encoding="UTF-8"?>
  | <definitions targetNamespace="http://jbpm.org/examples/hello"
  |   xmlns="http://schemas.xmlsoap.org/wsdl/"
  |   xmlns:tns="http://jbpm.org/examples/hello"
  |   xmlns:apns="http://client/com/sap/xtp/customer"
  |   xmlns:bpel="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
  |   xmlns:plt="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
  |   xmlns:xsd="http://www.w3.org/2001/XMLSchema" >
  |       
  |    <import namespace="http://client/com/sap/xtp/customer" location="http://localhost:8080/quickstart/services/CustomerService?wsdl"/>
  |   
  |   <plt:partnerLinkType name="Greeter-Caller">
  |     <plt:role name="Greeter">
  |       <plt:portType name="tns:Greeter" />
  |     </plt:role>
  |    </plt:partnerLinkType>
  |    
  |    
  |    <plt:partnerLinkType name="Customer-LinkType">
  | 		<plt:role name="Customer">
  | 			<plt:portType name="apns:CustomerService"/>
  | 		</plt:role>
  | 	</plt:partnerLinkType>
  | 	
  | 	
  | 	
  | 
  |   <!-- carries the name of a person -->
  |   <message name="nameMessage">
  |     <part name="name" type="xsd:string" />
  |   </message>
  | 
  |   <!-- carries the greeting -->
  |   <message name="greetingMessage">
  |     <part name="greeting" type="xsd:string" />
  |   </message>
  | 
  |   <!-- describes the interface presented to callers -->
  |   <portType name="Greeter">
  |     <operation name="sayHello">
  |       <input message="tns:nameMessage" />
  |       <output message="tns:greetingMessage" />
  |     </operation>
  |   </portType>
  |   
  | </definitions>
  | 






I have exception upon call to process:


  | 2006-11-14 15:53:40,137 DEBUG [org.jbpm.bpel.integration.jms.StartListener] caught exception while passing control to process, searching for handler
  | org.jbpm.graph.def.DelegationException
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:352)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	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.def.CompositeActivity$$EnhancerByCGLIB$$7810329b.raiseException(<generated>)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.bpel.def.Activity.enter(Activity.java:106)
  | 	at org.jbpm.graph.def.Transition.take(Transition.java:119)
  | 	at org.jbpm.graph.def.Node.leave(Node.java:383)
  | 	at org.jbpm.bpel.def.Activity.leave(Activity.java:171)
  | 	at org.jbpm.bpel.def.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:57)
  | 	at org.jbpm.bpel.def.Receive.accept(Receive.java:82)
  | 	at org.jbpm.bpel.def.Receive$$FastClassByCGLIB$$516412f0.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.def.Receive$$EnhancerByCGLIB$$f0638c92.accept(<generated>)
  | 	at org.jbpm.bpel.def.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:97)
  | 	at org.jbpm.bpel.def.Sequence.accept(Sequence.java:105)
  | 	at org.jbpm.bpel.def.Activity$$FastClassByCGLIB$$a89e54a2.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.def.Activity$$EnhancerByCGLIB$$db28b188.accept(<generated>)
  | 	at org.jbpm.bpel.def.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:43)
  | 	at org.jbpm.bpel.def.BpelDefinition.messageReceived(BpelDefinition.java:109)
  | 	at org.jbpm.bpel.integration.jms.StartListener.onMessage(StartListener.java:115)
  | 	at org.jboss.mq.SpyMessageConsumer.run(SpyMessageConsumer.java:694)
  | 	at java.lang.Thread.run(Thread.java:595)
  | Caused by: org.jbpm.graph.def.DelegationException
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:352)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	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.def.CompositeActivity$$EnhancerByCGLIB$$7810329b.raiseException(<generated>)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.bpel.def.Activity.enter(Activity.java:106)
  | 	at org.jbpm.graph.def.Transition.take(Transition.java:119)
  | 	at org.jbpm.graph.def.Node.leave(Node.java:383)
  | 	at org.jbpm.bpel.def.Activity.leave(Activity.java:171)
  | 	at org.jbpm.bpel.def.Assign.execute(Assign.java:55)
  | 	at org.jbpm.bpel.def.Activity.enter(Activity.java:101)
  | 	... 20 more
  | Caused by: java.lang.NullPointerException
  | 	at org.jbpm.bpel.integration.exe.SoapEndpointReference.selectPort(SoapEndpointReference.java:94)
  | 	at org.jbpm.bpel.integration.jms.IntegrationControl.getPartnerClient(IntegrationControl.java:234)
  | 	at org.jbpm.bpel.integration.jms.JmsIntegrationService.invoke(JmsIntegrationService.java:171)
  | 	at org.jbpm.bpel.def.Invoke.execute(Invoke.java:44)
  | 	at org.jbpm.bpel.def.Activity.enter(Activity.java:101)
  | 	... 25 more
  | 2006-11-14 15:53:40,137 ERROR [org.jbpm.bpel.integration.jms.StartListener] could not start process instance
  | org.jbpm.graph.def.DelegationException
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:352)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.bpel.integration.jms.StartListener.onMessage(StartListener.java:120)
  | 	at org.jboss.mq.SpyMessageConsumer.run(SpyMessageConsumer.java:694)
  | 	at java.lang.Thread.run(Thread.java:595)
  | Caused by: org.jbpm.graph.def.DelegationException
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:352)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	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.def.CompositeActivity$$EnhancerByCGLIB$$7810329b.raiseException(<generated>)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.bpel.def.Activity.enter(Activity.java:106)
  | 	at org.jbpm.graph.def.Transition.take(Transition.java:119)
  | 	at org.jbpm.graph.def.Node.leave(Node.java:383)
  | 	at org.jbpm.bpel.def.Activity.leave(Activity.java:171)
  | 	at org.jbpm.bpel.def.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:57)
  | 	at org.jbpm.bpel.def.Receive.accept(Receive.java:82)
  | 	at org.jbpm.bpel.def.Receive$$FastClassByCGLIB$$516412f0.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.def.Receive$$EnhancerByCGLIB$$f0638c92.accept(<generated>)
  | 	at org.jbpm.bpel.def.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:97)
  | 	at org.jbpm.bpel.def.Sequence.accept(Sequence.java:105)
  | 	at org.jbpm.bpel.def.Activity$$FastClassByCGLIB$$a89e54a2.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.def.Activity$$EnhancerByCGLIB$$db28b188.accept(<generated>)
  | 	at org.jbpm.bpel.def.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:43)
  | 	at org.jbpm.bpel.def.BpelDefinition.messageReceived(BpelDefinition.java:109)
  | 	at org.jbpm.bpel.integration.jms.StartListener.onMessage(StartListener.java:115)
  | 	... 2 more
  | Caused by: org.jbpm.graph.def.DelegationException
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:352)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	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.def.CompositeActivity$$EnhancerByCGLIB$$7810329b.raiseException(<generated>)
  | 	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
  | 	at org.jbpm.bpel.def.Activity.enter(Activity.java:106)
  | 	at org.jbpm.graph.def.Transition.take(Transition.java:119)
  | 	at org.jbpm.graph.def.Node.leave(Node.java:383)
  | 	at org.jbpm.bpel.def.Activity.leave(Activity.java:171)
  | 	at org.jbpm.bpel.def.Assign.execute(Assign.java:55)
  | 	at org.jbpm.bpel.def.Activity.enter(Activity.java:101)
  | 	... 20 more
  | Caused by: java.lang.NullPointerException
  | 	at org.jbpm.bpel.integration.exe.SoapEndpointReference.selectPort(SoapEndpointReference.java:94)
  | 	at org.jbpm.bpel.integration.jms.IntegrationControl.getPartnerClient(IntegrationControl.java:234)
  | 	at org.jbpm.bpel.integration.jms.JmsIntegrationService.invoke(JmsIntegrationService.java:171)
  | 	at org.jbpm.bpel.def.Invoke.execute(Invoke.java:44)
  | 	at org.jbpm.bpel.def.Activity.enter(Activity.java:101)
  | 	... 25 more
  | 2006-11-14 15:53:40,147 DEBUG [org.jbpm.JbpmContext] closing JbpmContext
  | 2006-11-14 15:53:40,147 DEBUG [org.jbpm.svc.Services] closing service 'persistence': org.jbpm.bpel.persistence.db.DbPersistenceService at 10cf62
  | 2006-11-14 15:53:40,147 DEBUG [org.jbpm.persistence.db.DbPersistenceService] rolling back hibernate transaction
  | 2006-11-14 15:53:40,147 DEBUG [org.hibernate.transaction.JDBCTransaction] rollback
  | 2006-11-14 15:53:40,147 DEBUG [org.hibernate.transaction.JDBCTransaction] re-enabling autocommit
  | 2006-11-14 15:53:40,147 DEBUG [org.hibernate.transaction.JDBCTransaction] rolled back JDBC Connection
  | 2006-11-14 15:53:40,147 DEBUG [org.hibernate.jdbc.ConnectionManager] aggressively releasing JDBC connection
  | 2006-11-14 15:53:40,147 DEBUG [org.hibernate.jdbc.ConnectionManager] releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
  | 2006-11-14 15:53:40,147 DEBUG [org.jbpm.persistence.db.DbPersistenceService] closing hibernate session
  | 2006-11-14 15:53:40,147 DEBUG [org.jbpm.svc.Services] closing service 'integration': org.jbpm.bpel.integration.jms.JmsIntegrationService at 19f332b
  | 
  | 


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