Maïté Braud [
https://community.jboss.org/people/mbraud] created the discussion
"Re: jBPM processes started from Java code dont show up in jBPM process
console"
To view the discussion, visit:
https://community.jboss.org/message/647794#647794
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Now I'm hitting another problem. I've been doing some extensive search on the
forum and found several posts but none of them solved my problem.
I can now start processes from java code and I see them appearing in the jBPM-console
allowing me to complete the first human task in my workflow but later on I get a
OptimisticLockException.
What I am actually doing is that most of the service tasks in my process are asynchronous,
that is I'm sending web service requests to external systems which calls me back
asynchronously once they're finished. I then call the ksession.signalEvent (kSession
is persisted in memory) in order to finish the service task and start the next one in my
process.
Now this all works fine when I start the process from the jBPM-console but if I start the
process from java code, I get the following stacktrace when I try to call
ksession.signalEvent.
I get the same error whether my java code create a new session or reuse the one created by
the jBPM-console.
Any idea?
Here is the stacktrace:
2012-01-20 10:04:53,132 WARN [Thread-66]
[org.drools.persistence.jta.JtaTransactionManager] - Unable to commit transaction
javax.persistence.OptimisticLockException: org.hibernate.StaleObjectStateException: Row
was updated or deleted by another transaction (or unsaved-value mapping was incorrect):
[org.jbpm.persistence.processinstance.ProcessInstanceInfo#4]
at
org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1416)
at
org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1334)
at
org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1315)
at
org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1321)
at
org.hibernate.ejb.AbstractEntityManagerImpl$3.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1235)
at
org.hibernate.transaction.synchronization.CallbackCoordinator.beforeCompletion(CallbackCoordinator.java:122)
at
org.hibernate.transaction.synchronization.HibernateSynchronizationImpl.beforeCompletion(HibernateSynchronizationImpl.java:51)
at
bitronix.tm.BitronixTransaction.fireBeforeCompletionEvent(BitronixTransaction.java:478)
at bitronix.tm.BitronixTransaction.commit(BitronixTransaction.java:193)
at
bitronix.tm.BitronixTransactionManager.commit(BitronixTransactionManager.java:120)
at
org.drools.persistence.jta.JtaTransactionManager.commit(JtaTransactionManager.java:167)
at
org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:294)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.signalEvent(CommandBasedStatefulKnowledgeSession.java:209)
at
eu.ensure.tessella.pdalm.service.ManagerPersistence.sendCompletedMessageByWorkItem(ManagerPersistence.java:62)
at
eu.ensure.tessella.pdalm.service.StepCompleteServiceImpl$1.run(StepCompleteServiceImpl.java:51)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another
transaction (or unsaved-value mapping was incorrect):
[org.jbpm.persistence.processinstance.ProcessInstanceInfo#4]
at
org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1950)
at
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2594)
at
org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2494)
at
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2821)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:113)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:265)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:185)
at
org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at
org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383)
at
org.hibernate.transaction.synchronization.CallbackCoordinator.beforeCompletion(CallbackCoordinator.java:117)
... 10 more
2012-01-20 10:04:53,136 ERROR [Thread-66]
[org.drools.persistence.SingleSessionCommandService] - Could not commit session
java.lang.RuntimeException: Unable to commit transaction
at
org.drools.persistence.jta.JtaTransactionManager.commit(JtaTransactionManager.java:170)
at
org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:294)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.signalEvent(CommandBasedStatefulKnowledgeSession.java:209)
at
eu.ensure.tessella.pdalm.service.ManagerPersistence.sendCompletedMessageByWorkItem(ManagerPersistence.java:62)
at
eu.ensure.tessella.pdalm.service.StepCompleteServiceImpl$1.run(StepCompleteServiceImpl.java:51)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.persistence.OptimisticLockException:
org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction
(or unsaved-value mapping was incorrect):
[org.jbpm.persistence.processinstance.ProcessInstanceInfo#4]
at
org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1416)
at
org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1334)
at
org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1315)
at
org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1321)
at
org.hibernate.ejb.AbstractEntityManagerImpl$3.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1235)
at
org.hibernate.transaction.synchronization.CallbackCoordinator.beforeCompletion(CallbackCoordinator.java:122)
at
org.hibernate.transaction.synchronization.HibernateSynchronizationImpl.beforeCompletion(HibernateSynchronizationImpl.java:51)
at
bitronix.tm.BitronixTransaction.fireBeforeCompletionEvent(BitronixTransaction.java:478)
at bitronix.tm.BitronixTransaction.commit(BitronixTransaction.java:193)
at
bitronix.tm.BitronixTransactionManager.commit(BitronixTransactionManager.java:120)
at
org.drools.persistence.jta.JtaTransactionManager.commit(JtaTransactionManager.java:167)
... 5 more
Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another
transaction (or unsaved-value mapping was incorrect):
[org.jbpm.persistence.processinstance.ProcessInstanceInfo#4]
at
org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1950)
at
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2594)
at
org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2494)
at
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2821)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:113)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:265)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:185)
at
org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at
org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383)
at
org.hibernate.transaction.synchronization.CallbackCoordinator.beforeCompletion(CallbackCoordinator.java:117)
... 10 more
Any help would be highly appreciated.
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