[jboss-user] [JBoss jBPM] - Action.java:122 NullPointerException

Thu Jan 8 15:41:00 EST 2009

I am attempting to run this under Mule 2.1.1 Enterprise.  We are running MySQL as the database.  The source is a JMS Queue running on ActiveMQ. No matter what I place onto the queue, the error occurs and I have confirmed that data is being placed onto the queue. 
I am getting the following exception when trying to do a simple business process:

==============process.xml===============
<?xml version="1.0" encoding="UTF-8"?>
<process-definition name="LoanBroker">
    xmlns="http://jbpm.org/3/jpdl"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://jbpm.org/3/jpdl http://jbpm.org/jpdl-3.1.xsd"

    <!-- Request received from customer -->
    <start-state name="searchRequest">

    </start-state>

                SubscriptionRequest

            <!-- We could perform additional data validation here

            -->

                subscriptionRequest

    <end-state name="theFunIsDone" />

</process-definition>
===============snippent from mule.cfg==================

    <endpoint name="SubscriptionRequest" address="jms://Requests.Subscription" connector-ref="jmsConnector"/>
    <bpm:connector name="jBpmConnector" bpms-ref="jbpm"/>

    <jms:object-to-jmsmessage-transformer name="Object2JMS"/>

                <cxf:inbound-endpoint address="http://localhost:8888/services/Axiom"/>

                <inbound-endpoint ref="SubscriptionRequest"/>

                <pass-through-router>
                    <stdio:outbound-endpoint system="OUT"/>
                </pass-through-router>
                <filtering-router>
                    <outbound-endpoint ref="SubscriptionProcessEngine" />
                </filtering-router>

=============exception =================
ERROR 2009-01-08 15:01:15,795 [jBpmConnector.dispatcher.1] org.jbpm.instantiation.Delegation: couldn't load delegation class 'org.mule.providers.bpm.jbpm.actions.ValidateMessageSource'
java.lang.ClassNotFoundException: class 'org.mule.providers.bpm.jbpm.actions.ValidateMessageSource' could not be found by the process classloader
	at org.jbpm.instantiation.ProcessClassLoader.findClass(ProcessClassLoader.java:118)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.jbpm.instantiation.Delegation.instantiate(Delegation.java:140)
	at org.jbpm.instantiation.Delegation.getInstance(Delegation.java:125)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.instantiation.Delegation$$EnhancerByCGLIB$$cb0d36ae.getInstance()
	at org.jbpm.graph.def.Action.execute(Action.java:121)
	at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:264)
	at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:220)
	at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:190)
	at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:174)
	at org.jbpm.graph.def.Node.enter(Node.java:303)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4d0a8154.enter()
	at org.jbpm.graph.def.Transition.take(Transition.java:151)
	at org.jbpm.graph.def.Node.leave(Node.java:394)
	at org.jbpm.graph.node.StartState.leave(StartState.java:70)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4d0a8154.leave()
	at org.jbpm.graph.exe.Token.signal(Token.java:195)
	at org.jbpm.graph.exe.Token.signal(Token.java:140)
	at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:271)
	at org.mule.transport.bpm.jbpm.Jbpm.startProcess(Jbpm.java:150)
	at org.mule.transport.bpm.ProcessMessageDispatcher.processAction(ProcessMessageDispatcher.java:163)
	at org.mule.transport.bpm.ProcessMessageDispatcher.doDispatch(ProcessMessageDispatcher.java:69)
	at org.mule.transport.AbstractMessageDispatcher$Worker.run(AbstractMessageDispatcher.java:273)
	at org.mule.work.WorkerContext.run(WorkerContext.java:310)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:987)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:528)
	at java.lang.Thread.run(Unknown Source)
ERROR 2009-01-08 15:01:15,795 [jBpmConnector.dispatcher.1] org.jbpm.instantiation.Delegation: couldn't instantiate delegation class 'org.mule.providers.bpm.jbpm.actions.ValidateMessageSource'
java.lang.NullPointerException
	at org.jbpm.instantiation.FieldInstantiator.newInstance(FieldInstantiator.java:105)
	at org.jbpm.instantiation.FieldInstantiator.instantiate(FieldInstantiator.java:48)
	at org.jbpm.instantiation.Delegation.instantiate(Delegation.java:163)
	at org.jbpm.instantiation.Delegation.getInstance(Delegation.java:125)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.instantiation.Delegation$$EnhancerByCGLIB$$cb0d36ae.getInstance()
	at org.jbpm.graph.def.Action.execute(Action.java:121)
	at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:264)
	at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:220)
	at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:190)
	at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:174)
	at org.jbpm.graph.def.Node.enter(Node.java:303)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4d0a8154.enter()
	at org.jbpm.graph.def.Transition.take(Transition.java:151)
	at org.jbpm.graph.def.Node.leave(Node.java:394)
	at org.jbpm.graph.node.StartState.leave(StartState.java:70)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4d0a8154.leave()
	at org.jbpm.graph.exe.Token.signal(Token.java:195)
	at org.jbpm.graph.exe.Token.signal(Token.java:140)
	at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:271)
	at org.mule.transport.bpm.jbpm.Jbpm.startProcess(Jbpm.java:150)
	at org.mule.transport.bpm.ProcessMessageDispatcher.processAction(ProcessMessageDispatcher.java:163)
	at org.mule.transport.bpm.ProcessMessageDispatcher.doDispatch(ProcessMessageDispatcher.java:69)
	at org.mule.transport.AbstractMessageDispatcher$Worker.run(AbstractMessageDispatcher.java:273)
	at org.mule.work.WorkerContext.run(WorkerContext.java:310)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:987)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:528)
	at java.lang.Thread.run(Unknown Source)
ERROR 2009-01-08 15:01:15,920 [jBpmConnector.dispatcher.1] org.jbpm.graph.def.GraphElement: action threw exception: null
java.lang.NullPointerException
	at org.jbpm.graph.def.Action.execute(Action.java:122)
	at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:264)
	at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:220)
	at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:190)
	at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:174)
	at org.jbpm.graph.def.Node.enter(Node.java:303)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4d0a8154.enter()
	at org.jbpm.graph.def.Transition.take(Transition.java:151)
	at org.jbpm.graph.def.Node.leave(Node.java:394)
	at org.jbpm.graph.node.StartState.leave(StartState.java:70)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4d0a8154.leave()
	at org.jbpm.graph.exe.Token.signal(Token.java:195)
	at org.jbpm.graph.exe.Token.signal(Token.java:140)
	at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:271)
	at org.mule.transport.bpm.jbpm.Jbpm.startProcess(Jbpm.java:150)
	at org.mule.transport.bpm.ProcessMessageDispatcher.processAction(ProcessMessageDispatcher.java:163)
	at org.mule.transport.bpm.ProcessMessageDispatcher.doDispatch(ProcessMessageDispatcher.java:69)
	at org.mule.transport.AbstractMessageDispatcher$Worker.run(AbstractMessageDispatcher.java:273)
	at org.mule.work.WorkerContext.run(WorkerContext.java:310)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:987)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:528)
	at java.lang.Thread.run(Unknown Source)
ERROR 2009-01-08 15:01:16,029 [jBpmConnector.dispatcher.1] org.mule.DefaultExceptionStrategy: Caught exception in Exception Strategy: null
org.jbpm.graph.def.DelegationException
	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:387)
	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:378)
	at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:281)
	at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:220)
	at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:190)
	at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:174)
	at org.jbpm.graph.def.Node.enter(Node.java:303)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4d0a8154.enter()
	at org.jbpm.graph.def.Transition.take(Transition.java:151)
	at org.jbpm.graph.def.Node.leave(Node.java:394)
	at org.jbpm.graph.node.StartState.leave(StartState.java:70)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4d0a8154.leave()
	at org.jbpm.graph.exe.Token.signal(Token.java:195)
	at org.jbpm.graph.exe.Token.signal(Token.java:140)
	at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:271)
	at org.mule.transport.bpm.jbpm.Jbpm.startProcess(Jbpm.java:150)
	at org.mule.transport.bpm.ProcessMessageDispatcher.processAction(ProcessMessageDispatcher.java:163)
	at org.mule.transport.bpm.ProcessMessageDispatcher.doDispatch(ProcessMessageDispatcher.java:69)
	at org.mule.transport.AbstractMessageDispatcher$Worker.run(AbstractMessageDispatcher.java:273)
	at org.mule.work.WorkerContext.run(WorkerContext.java:310)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:987)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:528)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
	at org.jbpm.graph.def.Action.execute(Action.java:122)
	at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:264)
	... 30 more

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