hello,

i have the following code inside a method which is being called from an 
onMessage() method of an MDB :

  | JbpmSession jbpmSession = jbpmSessionFactory.openJbpmSession();
  | jbpmSession.beginTransaction();             
  | jbpmSession.getGraphSession().saveProcessInstance(processInstance);
  | System.out.println("[ProcessExecution] Saved processInstance with 
ID:"+processInstance.getId());
  | jbpmSession.commitTransaction();
  | jbpmSession.close();
  | 
And i m getting the following error and stack trace:

  | 22:36:31,515 ERROR [JDBCTransaction] JDBC commit failed
  | java.sql.SQLException: You cannot commit during a managed transaction!
  |         at 
org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.jdbcCommit(BaseWrapperManagedConnection.java:432)
  |         at 
org.jboss.resource.adapter.jdbc.WrappedConnection.commit(WrappedConnection.java:331)
  |         at 
org.hibernate.transaction.JDBCTransaction.commitAndResetAutoCommit(JDBCTransaction.java:139)
  |         at 
org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:115)
  |         at org.jbpm.db.JbpmSession.commitTransaction(JbpmSession.java:103)
  |         at 
com.adminsys.ejb.ProcessExecutionFacadeBean.storeProcessInstance(ProcessExecutionFacadeBean.java:126)
  |         at 
com.adminsys.ejb.ProcessExecutionFacadeBean.endTaskOfProcess(ProcessExecutionFacadeBean.java:284)
  |         at 
com.adminsys.ejb.TaskEvaluatedBean.onMessage(TaskEvaluatedBean.java:102)
  |         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:324)
  |         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$Worker.run(PooledExecutor.java:748)
  |         at java.lang.Thread.run(Thread.java:536)
  | 22:36:31,546 ERROR [JbpmSession] org.hibernate.TransactionException: JDBC 
commit failed
  | 22:36:31,546 INFO  [STDOUT] java.lang.RuntimeException: couldn't commit 
transaction
  | 22:36:31,546 INFO  [STDOUT]     at 
org.jbpm.db.JbpmSession.commitTransaction(JbpmSession.java:107)
  | 22:36:31,546 INFO  [STDOUT]     at 
com.adminsys.ejb.ProcessExecutionFacadeBean.storeProcessInstance(ProcessExecutionFacadeBean.java:126)
  | 22:36:31,546 INFO  [STDOUT]     at 
com.adminsys.ejb.ProcessExecutionFacadeBean.endTaskOfProcess(ProcessExecutionFacadeBean.java:284)
  | 22:36:31,546 INFO  [STDOUT]     at 
com.adminsys.ejb.TaskEvaluatedBean.onMessage(TaskEvaluatedBean.java:102)
  | 22:36:31,546 INFO  [STDOUT]     at 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 22:36:31,546 INFO  [STDOUT]     at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  | 22:36:31,546 INFO  [STDOUT]     at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 22:36:31,546 INFO  [STDOUT]     at 
java.lang.reflect.Method.invoke(Method.java:324)
  | 22:36:31,546 INFO  [STDOUT]     at 
org.jboss.invocation.Invocation.performCall(Invocation.java:345)
  | 22:36:31,546 INFO  [STDOUT]     at 
org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:475)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:
  | 149)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:101)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:106)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:335)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:166)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:94)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:389)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.Container.invoke(Container.java:873)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:1077)
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1379
  | )
  | 22:36:31,562 INFO  [STDOUT]     at 
org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:256)
  | 22:36:31,578 INFO  [STDOUT]     at 
org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:904)
  | 22:36:31,578 INFO  [STDOUT]     at 
org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:160)
  | 22:36:31,578 INFO  [STDOUT]     at 
org.jboss.mq.SpySession.run(SpySession.java:333)
  | 22:36:31,578 INFO  [STDOUT]     at 
org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
  | 22:36:31,578 INFO  [STDOUT]     at 
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
  | 22:36:31,578 INFO  [STDOUT]     at java.lang.Thread.run(Thread.java:536)
  | 22:36:31,578 INFO  [STDOUT] Caused by: org.hibernate.TransactionException: 
JDBC commit failed
  | 22:36:31,578 INFO  [STDOUT]     at 
org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:130)
  | 22:36:31,578 INFO  [STDOUT]     at 
org.jbpm.db.JbpmSession.commitTransaction(JbpmSession.java:103)
  | 22:36:31,578 INFO  [STDOUT]     ... 29 more
  | 22:36:31,593 INFO  [STDOUT] Caused by: java.sql.SQLException: You cannot 
commit during a managed transaction!
  | 22:36:31,593 INFO  [STDOUT]     at 
org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.jdbcCommit(BaseWrapperManagedConnection.java
  | :432)
  | 22:36:31,593 INFO  [STDOUT]     at 
org.jboss.resource.adapter.jdbc.WrappedConnection.commit(WrappedConnection.java:331)
  | 22:36:31,593 INFO  [STDOUT]     at 
org.hibernate.transaction.JDBCTransaction.commitAndResetAutoCommit(JDBCTransaction.java:139)
  | 22:36:31,593 INFO  [STDOUT]     at 
org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:115)
  | 22:36:31,593 INFO  [STDOUT]     ... 30 more
  | 
  | 

If i leave out the jbpmSession.commitTransaction(); i have problem with the 
persistence of my processInstance later on in the execution of my code; it's 
not retrieved correct from the db.
Any ideas?
Thanks

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