6 Replies Latest reply on Oct 5, 2007 7:58 AM by jgeraert

Message Driven Bean starting jbpm process

jgeraert Oct 3, 2007 9:37 AM

Hello all,

I want to start a JBPM process from upon reception of a JMS Message.

My environment is: jboss-4.2.1.GA + jboss seam 2.0.0.CR1.

I was trying to do this first with jboss seam 1.2.1.GA but i found a jira issue reporting a bug regarding a MDB + CreateProcess (http://jira.jboss.org/jira/browse/JBSEAM-798 )

So my very simple code ( just for testing ) looks like:


package com.melexis.sandbox;

import javax.ejb.ActivationConfigProperty;

@Name("inklessMessageListener")
@MessageDriven(activationConfig =
{
@ActivationConfigProperty(propertyName="destinationType", propertyValue="javax.jms.Topic"),
@ActivationConfigProperty(propertyName="destination", propertyValue="topic/Shopfloor")
})
public class InklessMessageListener implements MessageListener {

 @CreateProcess(definition="inkless")
 public void onMessage(Message arg0) {
 // TODO Auto-generated method stub

 }

}

But get a nice exception saying:


15:26:43,255 ERROR [JmsServerSession] Unexpected error delivering message SpyTextMessage {
Header {
 jmsDestination : TOPIC.Shopfloor
 jmsDeliveryMode : 2
 jmsExpiration : 0
 jmsPriority : 4
 jmsMessageID : ID:8-11914180032041
 jmsTimeStamp : 1191418003204
 jmsCorrelationID: null
 jmsReplyTo : null
 jmsType : null
 jmsRedelivered : false
 jmsProperties : {}
 jmsPropReadWrite: false
 msgReadOnly : true
 producerClientId: ID:8
}
Body {
 text :<?xml version="1.0" encoding="UTF-8"?><lot><lotnumber>A93338//DE</lotnumber><item>201210600</item><organization>MLX_SOF_SOF_IO</organization><subcontractor>O_CARSEM</subcontractor><wafers><wafer id="1"><gooddiecount>1747</gooddiecount></wafer><wafer id="2"><gooddiecount>1770</gooddiecount></wafer></wafers></lot>
}
}
javax.ejb.EJBTransactionRolledbackException: Transaction begin not detected, try installing transaction:ejb-transaction in components.xml
 at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:87)
 at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
 at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.mdb.MessagingContainer.localInvoke(MessagingContainer.java:245)
 at org.jboss.ejb3.mdb.inflow.MessageInflowLocalProxy.delivery(MessageInflowLocalProxy.java:268)
 at org.jboss.ejb3.mdb.inflow.MessageInflowLocalProxy.invoke(MessageInflowLocalProxy.java:138)
 at $Proxy211.onMessage(Unknown Source)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.onMessage(JmsServerSession.java:178)
 at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:891)
 at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:170)
 at org.jboss.mq.SpySession.run(SpySession.java:323)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:237)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:595)

So i read the exception and install transaction:ejb-transaction into my components.xml:

 <transaction:ejb-transaction/>

now i get another (even longer list of exceptions)

15:32:28,874 ERROR [JmsServerSession] Unexpected error delivering message SpyTextMessage {
Header {
 jmsDestination : TOPIC.Shopfloor
 jmsDeliveryMode : 2
 jmsExpiration : 0
 jmsPriority : 4
 jmsMessageID : ID:11-11914183478191
 jmsTimeStamp : 1191418347819
 jmsCorrelationID: null
 jmsReplyTo : null
 jmsType : null
 jmsRedelivered : false
 jmsProperties : {}
 jmsPropReadWrite: false
 msgReadOnly : true
 producerClientId: ID:11
}
Body {
 text :<?xml version="1.0" encoding="UTF-8"?><lot><lotnumber>A93338//DE</lotnumber><item>201210600</item><organization>MLX_SOF_SOF_IO</organization><subcontractor>O_CARSEM</subcontractor><wafers><wafer id="1"><gooddiecount>1747</gooddiecount></wafer><wafer id="2"><gooddiecount>1770</gooddiecount></wafer></wafers></lot>
}
}
javax.ejb.EJBTransactionRolledbackException
 at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:87)
 at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
 at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.mdb.MessagingContainer.localInvoke(MessagingContainer.java:245)
 at org.jboss.ejb3.mdb.inflow.MessageInflowLocalProxy.delivery(MessageInflowLocalProxy.java:268)
 at org.jboss.ejb3.mdb.inflow.MessageInflowLocalProxy.invoke(MessageInflowLocalProxy.java:138)
 at $Proxy244.onMessage(Unknown Source)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.onMessage(JmsServerSession.java:178)
 at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:891)
 at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:170)
 at org.jboss.mq.SpySession.run(SpySession.java:323)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:237)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
 at org.jboss.seam.contexts.BusinessProcessContext.getNamesFromContext(BusinessProcessContext.java:115)
 at org.jboss.seam.contexts.BusinessProcessContext.getNames(BusinessProcessContext.java:97)
 at org.jboss.seam.contexts.Contexts.destroy(Contexts.java:241)
 at org.jboss.seam.contexts.Contexts.flushAndDestroyContexts(Contexts.java:356)
 at org.jboss.seam.contexts.Lifecycle.endCall(Lifecycle.java:92)
 at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:120)
 at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50)
 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.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
 at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
 ... 17 more
15:32:28,905 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null
15:32:28,907 ERROR [JDBCExceptionReporter] Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >; - nested throwable: (javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >)
15:32:28,913 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null
15:32:28,915 ERROR [JDBCExceptionReporter] Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >; - nested throwable: (javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >)
15:32:28,917 ERROR [DbPersistenceService] hibernate flush failed
org.hibernate.exception.GenericJDBCException: Cannot open connection
 at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
 at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:426)
 at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
 at org.hibernate.jdbc.AbstractBatcher.prepareSelectStatement(AbstractBatcher.java:123)
 at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:73)
 at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:94)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
 at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:507)
 at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499)
 at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java:218)
 at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
 at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
 at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
 at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
 at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
 at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
 at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
 at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
 at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:131)
 at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:122)
 at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:65)
 at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
 at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
 at org.jbpm.persistence.db.DbPersistenceService.flushSession(DbPersistenceService.java:267)
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:231)
 at org.jbpm.svc.Services.close(Services.java:222)
 at org.jbpm.JbpmContext.close(JbpmContext.java:139)
 at org.jboss.seam.bpm.ManagedJbpmContext.closeContext(ManagedJbpmContext.java:155)
 at org.jboss.seam.bpm.ManagedJbpmContext.afterCompletion(ManagedJbpmContext.java:131)
 at org.jboss.seam.transaction.SynchronizationRegistry.afterTransactionCompletion(SynchronizationRegistry.java:42)
 at org.jboss.seam.transaction.EjbSynchronizations.afterCompletion(EjbSynchronizations.java:75)
 at org.jboss.ejb3.stateful.SessionSynchronizationInterceptor$SFSBSessionSynchronization.afterCompletion(SessionSynchronizationInterceptor.java:91)
 at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.afterCompletion(SynchronizationImple.java:136)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.afterCompletion(TwoPhaseCoordinator.java:340)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:107)
 at com.arjuna.ats.arjuna.AtomicAction.abort(AtomicAction.java:201)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.rollbackAndDisassociate(TransactionImple.java:1451)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.rollback(BaseTransaction.java:163)
 at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.rollback(BaseTransactionManagerDelegate.java:126)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession$XATransactionDemarcationStrategy.end(JmsServerSession.java:475)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:248)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:595)
Caused by: org.jboss.util.NestedSQLException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >; - nested throwable: (javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >)
 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:94)
 at org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69)
 at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:423)
 ... 46 more
Caused by: javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >
 at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:304)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:396)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:842)
 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
 ... 48 more
15:32:28,924 ERROR [DbPersistenceService] hibernate rollback failed
java.lang.NullPointerException
 at org.jbpm.persistence.db.DbPersistenceService.rollback(DbPersistenceService.java:299)
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:233)
 at org.jbpm.svc.Services.close(Services.java:222)
 at org.jbpm.JbpmContext.close(JbpmContext.java:139)
 at org.jboss.seam.bpm.ManagedJbpmContext.closeContext(ManagedJbpmContext.java:155)
 at org.jboss.seam.bpm.ManagedJbpmContext.afterCompletion(ManagedJbpmContext.java:131)
 at org.jboss.seam.transaction.SynchronizationRegistry.afterTransactionCompletion(SynchronizationRegistry.java:42)
 at org.jboss.seam.transaction.EjbSynchronizations.afterCompletion(EjbSynchronizations.java:75)
 at org.jboss.ejb3.stateful.SessionSynchronizationInterceptor$SFSBSessionSynchronization.afterCompletion(SessionSynchronizationInterceptor.java:91)
 at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.afterCompletion(SynchronizationImple.java:136)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.afterCompletion(TwoPhaseCoordinator.java:340)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:107)
 at com.arjuna.ats.arjuna.AtomicAction.abort(AtomicAction.java:201)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.rollbackAndDisassociate(TransactionImple.java:1451)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.rollback(BaseTransaction.java:163)
 at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.rollback(BaseTransactionManagerDelegate.java:126)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession$XATransactionDemarcationStrategy.end(JmsServerSession.java:475)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:248)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:595)
15:32:28,932 ERROR [Services] problem closing service 'persistence'
org.jbpm.persistence.JbpmPersistenceException: hibernate flush failed
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:236)
 at org.jbpm.svc.Services.close(Services.java:222)
 at org.jbpm.JbpmContext.close(JbpmContext.java:139)
 at org.jboss.seam.bpm.ManagedJbpmContext.closeContext(ManagedJbpmContext.java:155)
 at org.jboss.seam.bpm.ManagedJbpmContext.afterCompletion(ManagedJbpmContext.java:131)
 at org.jboss.seam.transaction.SynchronizationRegistry.afterTransactionCompletion(SynchronizationRegistry.java:42)
 at org.jboss.seam.transaction.EjbSynchronizations.afterCompletion(EjbSynchronizations.java:75)
 at org.jboss.ejb3.stateful.SessionSynchronizationInterceptor$SFSBSessionSynchronization.afterCompletion(SessionSynchronizationInterceptor.java:91)
 at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.afterCompletion(SynchronizationImple.java:136)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.afterCompletion(TwoPhaseCoordinator.java:340)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:107)
 at com.arjuna.ats.arjuna.AtomicAction.abort(AtomicAction.java:201)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.rollbackAndDisassociate(TransactionImple.java:1451)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.rollback(BaseTransaction.java:163)
 at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.rollback(BaseTransactionManagerDelegate.java:126)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession$XATransactionDemarcationStrategy.end(JmsServerSession.java:475)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:248)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:595)
Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection
 at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
 at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:426)
 at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
 at org.hibernate.jdbc.AbstractBatcher.prepareSelectStatement(AbstractBatcher.java:123)
 at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:73)
 at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:94)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
 at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:507)
 at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499)
 at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java:218)
 at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
 at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
 at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
 at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
 at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
 at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
 at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
 at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
 at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:131)
 at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:122)
 at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:65)
 at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
 at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
 at org.jbpm.persistence.db.DbPersistenceService.flushSession(DbPersistenceService.java:267)
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:231)
 ... 20 more
Caused by: org.jboss.util.NestedSQLException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >; - nested throwable: (javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >)
 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:94)
 at org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69)
 at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:423)
 ... 46 more
Caused by: javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >
 at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:304)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:396)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:842)
 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
 ... 48 more
15:32:28,936 ERROR [SynchronizationRegistry] Exception processing transaction Synchronization after completion
org.jbpm.JbpmException: problem closing services {persistence=org.jbpm.persistence.JbpmPersistenceException: hibernate flush failed}
 at org.jbpm.svc.Services.close(Services.java:234)
 at org.jbpm.JbpmContext.close(JbpmContext.java:139)
 at org.jboss.seam.bpm.ManagedJbpmContext.closeContext(ManagedJbpmContext.java:155)
 at org.jboss.seam.bpm.ManagedJbpmContext.afterCompletion(ManagedJbpmContext.java:131)
 at org.jboss.seam.transaction.SynchronizationRegistry.afterTransactionCompletion(SynchronizationRegistry.java:42)
 at org.jboss.seam.transaction.EjbSynchronizations.afterCompletion(EjbSynchronizations.java:75)
 at org.jboss.ejb3.stateful.SessionSynchronizationInterceptor$SFSBSessionSynchronization.afterCompletion(SessionSynchronizationInterceptor.java:91)
 at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.afterCompletion(SynchronizationImple.java:136)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.afterCompletion(TwoPhaseCoordinator.java:340)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:107)
 at com.arjuna.ats.arjuna.AtomicAction.abort(AtomicAction.java:201)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.rollbackAndDisassociate(TransactionImple.java:1451)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.rollback(BaseTransaction.java:163)
 at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.rollback(BaseTransactionManagerDelegate.java:126)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession$XATransactionDemarcationStrategy.end(JmsServerSession.java:475)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:248)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:595)
Caused by: org.jbpm.persistence.JbpmPersistenceException: hibernate flush failed
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:236)
 at org.jbpm.svc.Services.close(Services.java:222)
 ... 19 more
Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection
 at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
 at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:426)
 at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
 at org.hibernate.jdbc.AbstractBatcher.prepareSelectStatement(AbstractBatcher.java:123)
 at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:73)
 at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:94)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
 at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:507)
 at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499)
 at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java:218)
 at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
 at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
 at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
 at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
 at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
 at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
 at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
 at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
 at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:131)
 at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:122)
 at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:65)
 at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
 at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
 at org.jbpm.persistence.db.DbPersistenceService.flushSession(DbPersistenceService.java:267)
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:231)
 ... 20 more
Caused by: org.jboss.util.NestedSQLException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >; - nested throwable: (javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >)
 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:94)
 at org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69)
 at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:423)
 ... 46 more
Caused by: javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:de17:470359d6:2ae status: ActionStatus.ABORTED >
 at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:304)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:396)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:842)
 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
 ... 48 more
15:32:29,147 INFO [STDOUT] Hibernate: select processdef0_.ID_ as ID1_338_, processdef0_.NAME_ as NAME3_338_, processdef0_.DESCRIPTION_ as DESCRIPT4_338_, processdef0_.VERSION_ as VERSION5_338_, processdef0_.ISTERMINATIONIMPLICIT_ as ISTERMIN6_338_, processdef0_.STARTSTATE_ as STARTSTATE7_338_ from JBPM_PROCESSDEFINITION processdef0_ where processdef0_.NAME_=? order by processdef0_.VERSION_ desc limit ?
15:32:29,153 INFO [STDOUT] Hibernate: select nextval ('hibernate_sequence')
15:32:29,161 INFO [STDOUT] Hibernate: select nextval ('hibernate_sequence')

Any clues where to look for?

Thank you for your time,

best regards,

Jo

1. Re: Message Driven Bean starting jbpm process

pmuir Oct 3, 2007 7:27 PM (in response to jgeraert)

Have you tried creating the process on another component which you inject into the MDB. MDBs aren't capable of handling transactions.
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2. Re: Message Driven Bean starting jbpm process

jgeraert Oct 4, 2007 12:05 AM (in response to jgeraert)

Hello,

What i have now:

public class InklessMessageListener implements MessageListener {

 @EJB
 InklessProcessManager inklessProcessManager;

 //@CreateProcess(definition="inkless")
 public void onMessage(Message arg0) {

 inklessProcessManager.startProcess();

 }

}

and

@Stateless
@Name("inklessProcessManager")
public class InklessProcessManagerImpl implements InklessProcessManager {

 @CreateProcess(definition="inkless")
 @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
 public void startProcess() {
 }

}

but this gives me transaction issues as well. I suspect the NullPointerException may be the root cause.

05:59:11,766 ERROR [JmsServerSession] Unexpected error delivering message SpyTextMessage {
Header {
 jmsDestination : TOPIC.Shopfloor
 jmsDeliveryMode : 2
 jmsExpiration : 0
 jmsPriority : 4
 jmsMessageID : ID:6-11914703510711
 jmsTimeStamp : 1191470351070
 jmsCorrelationID: null
 jmsReplyTo : null
 jmsType : null
 jmsRedelivered : true
 jmsProperties : {JMS_JBOSS_REDELIVERY_COUNT=1}
 jmsPropReadWrite: false
 msgReadOnly : true
 producerClientId: ID:6
}
Body {
 text :<?xml version="1.0" encoding="UTF-8"?><lot><lotnumber>A93338//DE</lotnumber><item>201210600</item><organization>MLX_SOF_SOF_IO</organization><subcontractor>O_CARSEM</subcontractor><wafers><wafer id="1"><gooddiecount>1747</gooddiecount></wafer><wafer id="2"><gooddiecount>1770</gooddiecount></wafer></wafers></lot>
}
}
javax.ejb.EJBTransactionRolledbackException
 at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:87)
 at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
 at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.mdb.MessagingContainer.localInvoke(MessagingContainer.java:245)
 at org.jboss.ejb3.mdb.inflow.MessageInflowLocalProxy.delivery(MessageInflowLocalProxy.java:268)
 at org.jboss.ejb3.mdb.inflow.MessageInflowLocalProxy.invoke(MessageInflowLocalProxy.java:138)
 at $Proxy185.onMessage(Unknown Source)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.onMessage(JmsServerSession.java:178)
 at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:891)
 at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:170)
 at org.jboss.mq.SpySession.run(SpySession.java:323)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:237)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
 at org.jboss.seam.contexts.BusinessProcessContext.getNamesFromContext(BusinessProcessContext.java:115)
 at org.jboss.seam.contexts.BusinessProcessContext.getNames(BusinessProcessContext.java:97)
 at org.jboss.seam.contexts.Contexts.destroy(Contexts.java:241)
 at org.jboss.seam.contexts.Contexts.flushAndDestroyContexts(Contexts.java:356)
 at org.jboss.seam.contexts.Lifecycle.endCall(Lifecycle.java:92)
 at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:120)
 at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50)
 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.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
 at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
 ... 17 more
05:59:11,776 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null
05:59:11,776 ERROR [JDBCExceptionReporter] Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:dba4:47046487:87 status: ActionStatus.ABORTED >; - nested throwable: (javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:dba4:47046487:87 status: ActionStatus.ABORTED >)
05:59:11,786 ERROR [SynchronizationRegistry] Exception processing transaction Synchronization after completion
org.hibernate.exception.GenericJDBCException: Cannot open connection
 at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
 at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:426)
 at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
 at org.hibernate.jdbc.AbstractBatcher.prepareSelectStatement(AbstractBatcher.java:123)
 at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:73)
 at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
 at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
 at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
 at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
 at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
 at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
 at org.jbpm.logging.db.DbLoggingService.log(DbLoggingService.java:50)
 at org.jbpm.svc.save.SaveLogsOperation.save(SaveLogsOperation.java:47)
 at org.jbpm.svc.Services.save(Services.java:161)
 at org.jbpm.JbpmContext.save(JbpmContext.java:427)
 at org.jbpm.JbpmContext.autoSave(JbpmContext.java:620)
 at org.jbpm.JbpmContext.close(JbpmContext.java:137)
 at org.jboss.seam.bpm.ManagedJbpmContext.closeContext(ManagedJbpmContext.java:155)
 at org.jboss.seam.bpm.ManagedJbpmContext.afterCompletion(ManagedJbpmContext.java:131)
 at org.jboss.seam.transaction.SynchronizationRegistry.afterTransactionCompletion(SynchronizationRegistry.java:42)
 at org.jboss.seam.transaction.EjbSynchronizations.afterCompletion(EjbSynchronizations.java:75)
 at org.jboss.ejb3.stateful.SessionSynchronizationInterceptor$SFSBSessionSynchronization.afterCompletion(SessionSynchronizationInterceptor.java:91)
 at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.afterCompletion(SynchronizationImple.java:136)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.afterCompletion(TwoPhaseCoordinator.java:340)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:107)
 at com.arjuna.ats.arjuna.AtomicAction.abort(AtomicAction.java:201)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.rollbackAndDisassociate(TransactionImple.java:1451)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.rollback(BaseTransaction.java:163)
 at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.rollback(BaseTransactionManagerDelegate.java:126)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession$XATransactionDemarcationStrategy.end(JmsServerSession.java:475)
 at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:248)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:595)
Caused by: org.jboss.util.NestedSQLException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:dba4:47046487:87 status: ActionStatus.ABORTED >; - nested throwable: (javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:dba4:47046487:87 status: ActionStatus.ABORTED >)
 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:94)
 at org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69)
 at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:423)
 ... 36 more
Caused by: javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: 7f000001:dba4:47046487:87 status: ActionStatus.ABORTED >
 at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:304)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:396)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:842)
 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
 ... 38 more

3. Re: Message Driven Bean starting jbpm process

pmuir Oct 4, 2007 5:16 PM (in response to jgeraert)

I don't think you want the @TransactionAttribute on your method.
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4. Re: Message Driven Bean starting jbpm process

jgeraert Oct 5, 2007 4:34 AM (in response to jgeraert)

Hello,

I had already tried with the TransactionAttribute removed. I looked closer to the NullPointerException in the stacktrace

Caused by: java.lang.NullPointerException
 at org.jboss.seam.contexts.BusinessProcessContext.getNamesFromContext(BusinessProcessContext.java:1
15)

I took a dive in this Seam code:


 private Set<String> getNamesFromContext()
 {
 //TODO: note that this is called from Contexts.destroy(),
 // after the Seam-managed txn was committed, but
 // this implementation requires a hit to the database!
 HashSet<String> results = new HashSet<String>();
 org.jbpm.taskmgmt.exe.TaskInstance taskInstance = getTaskInstance();
 if (taskInstance==null)
 {
 ContextInstance context = getContextInstance();
 if ( context!=null )
 {
 results.addAll( context.getVariables().keySet() );
 }
 }
 else
 {
 results.addAll( taskInstance.getVariables().keySet() );
 }
 return results;
 }

Apperantly context.getVariables() is null obviously causing the NullpointerException.
I tried to quickfix this with


if ( context!=null && context.getVariables() !=null )
 {
 results.addAll( context.getVariables().keySet() );
 }

I don't know if it is a correct fix but this seemed to work for me.

Another thing that fixes the thing is actually Outjecting a variable to the business context.


@Stateless
@Name("inklessProcessManager")
@Interceptors(SeamInterceptor.class)
public class InklessProcessManagerImpl implements InklessProcessManager {

 @Out(scope=ScopeType.BUSINESS_PROCESS, value="foo") Integer someThing;

 @CreateProcess(definition="inkless")
 public void startProcess() {
 someThing=new Integer(5);
 }

}

So i presume this is an bug. Shall i create a JIRA issue for this.

Best regards,

Jo

5. Re: Message Driven Bean starting jbpm process

pmuir Oct 5, 2007 6:48 AM (in response to jgeraert)

Please :)
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6. Re: Message Driven Bean starting jbpm process

jgeraert Oct 5, 2007 7:58 AM (in response to jgeraert)

See JBSEAM-2047
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