Action.java:122 NullPointerException
plester3738 Jan 8, 2009 3:40 PMI 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