org.hibernate.event.def.AbstractFlushingEventListener] Could
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.