[jboss-user] [JBoss jBPM] - org.hibernate.event.def.AbstractFlushingEventListener] Could

mavrides do-not-reply at jboss.com
Mon Sep 17 12:33:25 EDT 2007


Hi, I am using JBPM 3.2.2 under JBOSS 4.0.5GA and Hibernate (default JBOSS 4.0.5GA database).
I have a very simple process definition, in which I have a fork and a join and I want all nodes to be asynchronous. I have noticed that when I declare the two nodes between the fork/join as asynchronous I get this exception on the stack trace:


  | INFO  [com.sample.action.DummyTwoActionHandler] Node Name: node1
  | INFO  [com.sample.action.DummyTwoActionHandler] Node Name: node3
  | INFO  [com.sample.action.DummyTwoActionHandler] Node Name: node2
  | ERROR [org.hibernate.event.def.AbstractFlushingEventListener] Could not synchronize database state with session
  | org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.graph.exe.Token#874]
  | 	at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1699)
  | 	at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2342)
  | 	at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2242)
  | 	at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2542)
  | 	at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:92)
  | 	at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
  | 	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
  | 	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
  | 	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
  | 	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
  | 	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
  | 	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
  | 	at org.hibernate.transaction.CacheSynchronization.beforeCompletion(CacheSynchronization.java:59)
  | 	at org.jboss.tm.TransactionImpl.doBeforeCompletion(TransactionImpl.java:1491)
  | 	at org.jboss.tm.TransactionImpl.beforePrepare(TransactionImpl.java:1110)
  | 	at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:324)
  | 	at org.jboss.tm.TxManager.commit(TxManager.java:240)
  | 	at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:351)
  | 	at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:905)
  | 	at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:170)
  | 	at org.jboss.mq.SpySession.run(SpySession.java:323)
  | 	at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:194)
  | 	at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
  | 	at java.lang.Thread.run(Thread.java:619)
  | 2007-09-17 17:16:59,171 ERROR [org.jboss.jms.asf.StdServerSession] failed to commit/rollback
  | org.jboss.tm.JBossRollbackException: Unable to commit, tx=TransactionImpl:XidImpl[FormatId=257, GlobalId=emma/36, BranchQual=, localId=36] status=STATUS_NO_TRANSACTION; - nested throwable: (org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.graph.exe.Token#874])
  | 	at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:372)
  | 	at org.jboss.tm.TxManager.commit(TxManager.java:240)
  | 	at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:351)
  | 	at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:905)
  | 	at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:170)
  | 	at org.jboss.mq.SpySession.run(SpySession.java:323)
  | 	at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:194)
  | 	at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
  | 	at java.lang.Thread.run(Thread.java:619)
  | Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.graph.exe.Token#874]
  | 	at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1699)
  | 	at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2342)
  | 	at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2242)
  | 	at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2542)
  | 	at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:92)
  | 	at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
  | 	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
  | 	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
  | 	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
  | 	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
  | 	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
  | 	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
  | 	at org.hibernate.transaction.CacheSynchronization.beforeCompletion(CacheSynchronization.java:59)
  | 	at org.jboss.tm.TransactionImpl.doBeforeCompletion(TransactionImpl.java:1491)
  | 	at org.jboss.tm.TransactionImpl.beforePrepare(TransactionImpl.java:1110)
  | 	at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:324)
  | 	... 8 more

I am not sure whether this is a bug of JBPM 3.2.2 but it only happens when I declare any nodes that exist between a fork/join as asynchronous. Here is my process definition:


  | <?xml version="1.0" encoding="UTF-8"?>
  | 
  | <process-definition
  |   xmlns="urn:jbpm.org:jpdl-3.2"  name="AsyncProcessFork">
  |    <start-state name="start">
  |       <transition name="" to="node1"></transition>
  |    </start-state>
  |    <node name="node1"  async='true'>
  |       <action class="com.sample.action.DummyTwoActionHandler"></action>
  |       <transition name="" to="fork1"></transition>  
  |    </node>
  |    <fork name="fork1">
  |       <transition name="" to="node2"></transition>
  |       <transition name="tr2" to="node3"></transition>
  |    </fork>
  |    <join name="join1">
  |       <transition name="" to="node4"></transition>
  |    </join>
  |    <node name="node2" async='true'>
  |       <action class="com.sample.action.DummyTwoActionHandler"></action>
  |       <transition name="" to="join1"></transition>   
  |    </node>
  |    <node name="node3" async='true'>
  |       <action class="com.sample.action.DummyTwoActionHandler"></action>
  |       <transition name="" to="join1"></transition>   
  |    </node>
  |    <end-state name="end1"></end-state>
  |    <node name="node4" async='true'>
  |       <action class="com.sample.action.DummyTwoActionHandler"></action>
  |       <transition name="" to="end1"></transition>   
  |    </node>
  | </process-definition>

And here is my DummyActionHandler which just goes to the next node:


  | public class DummyTwoActionHandler implements ActionHandler {
  |     
  |     static Logger log;
  |     
  |     public void execute(ExecutionContext executionContext) throws Exception {
  |         
  |         log = Logger.getLogger(this.getClass());
  |         
  |         log.info("Node Name: " + executionContext.getNode().getName());
  |         
  |         executionContext.getNode().leave(executionContext);
  |     }
  | 
  | }
  | 

I would be really grateful for any help on this matter.

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