I've been working with jBPM3.0 and have attempted to upgrade to v3.0.2 but have run into a significant problem.

My process definition is this:

<?xml version="1.0" encoding="UTF-8"?>

<process-definition
name="Work2">
<start-state name="start">
< transition name="tr1" to="SaveXMLDocument"></ transition>
</start-state>
<end-state name="end"></end-state>
< node name="SaveXMLDocument">
< transition name="tr1" to="end"></ transition>

<action class="project.workflow.action.SaveRawXMLDocument" config-type="bean">
</ node>
</process-definition>
(xml slightly twikked to allow for html display)

I can successfully store this workflow (mirroring code in the tutorial).
However, when I execute the workflow, I get the following exception:


13:26:48,792 INFO [STDOUT] org.hibernate.HibernateException: null index column for collecti
on: org.jbpm.graph.def.ProcessDefinition.definitions
at org.hibernate.persister.collection.AbstractCollectionPersister.readIndex(AbstractCollectionPersister.java:652)
at org.hibernate.collection.PersistentMap.readFrom(PersistentMap.java:222)
at org.hibernate.loader.Loader.readCollectionElement(Loader.java:994)
at org.hibernate.loader.Loader.readCollectionElements(Loader.java:635)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:579)
at org.hibernate.loader.Loader.doQuery(Loader.java:689)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:223)
at org.hibernate.loader.Loader.loadCollection(Loader.java:1916)
at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520)
at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1562)
at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343)
at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:85)
at org.hibernate.collection.PersistentMap.values(PersistentMap.java:198)
at org.jbpm.graph.exe.ProcessInstance.(ProcessInstance.java:73)
at project.bean.DocumentProcessingBean.onMessage(DocumentProcessingBean.java:66)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.invocation.Invocation.performCall(Invocation.java:345)
at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:475)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:149)
at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:101)
at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:106)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:335)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:166)
at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:94)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:389)
at org.jboss.ejb.Container.invoke(Container.java:873)
at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:1077)
at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1379)
at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:256)
at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:904)
at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:160)
at org.jboss.mq.SpySession.run(SpySession.java:333)
at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
at java.lang.Thread.run(Thread.java:595)

Additionally, I cannot retreive the XML for this process definition.

The code:

.......getGraphSession().getGraphSession();
ProcessDefinition pd = gs.findLatestProcessDefinition( name );

String s = JpdlXmlWriter.toString(pd);
:

works for the websale process definition but my definition (that was successfully loaded!) generates this exception:

org.hibernate.HibernateException: null index column for collection: org.jbpm.graph.def.ProcessDefinition.nodes

Stack Trace


org.hibernate.persister.collection.AbstractCollectionPersister.readIndex(AbstractCollectionPersister.java:652)
org.hibernate.collection.PersistentList.readFrom(PersistentList.java:358)
org.hibernate.loader.Loader.readCollectionElement(Loader.java:994)
org.hibernate.loader.Loader.readCollectionElements(Loader.java:635)
org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:579)
org.hibernate.loader.Loader.doQuery(Loader.java:689)
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:223)
org.hibernate.loader.Loader.loadCollection(Loader.java:1916)
org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520)
org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1562)
org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343)
org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:85)
org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:108)
org.hibernate.collection.PersistentList.size(PersistentList.java:91)
org.jbpm.jpdl.xml.JpdlXmlWriter.createDomTree(JpdlXmlWriter.java:88)
org.jbpm.jpdl.xml.JpdlXmlWriter.write(JpdlXmlWriter.java:52)
org.jbpm.jpdl.xml.JpdlXmlWriter.toString(JpdlXmlWriter.java:33)
project.servlet.WorkflowAdminServlet.getProcessDefinition(WorkflowAdminServlet.java:207)
project.servlet.WorkflowAdminServlet.doPost(WorkflowAdminServlet.java:121)
[snip]

My question is what changed? What am I doing wrong on the creation side?

-Fred