[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - How to configure hibernate to be able to work concurrently i

[kadlecp]

Hello,

I have several message driven beans that access db through hibernate. These message driven beans work in scope of one JTA transaction, so they access hibernate concurrently. It seems that hibernate is not configured well because I am getting this exception.


  | 14:46:44,652 ERROR [AssertionFailure] an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe
  | session)
  | org.hibernate.AssertionFailure: collection was processed twice by flush()
  |         at org.hibernate.engine.Collections.prepareCollectionForUpdate(Collections.java:202)
  |         at org.hibernate.engine.Collections.processReachableCollection(Collections.java:185)
  |         at org.hibernate.event.def.FlushVisitor.processCollection(FlushVisitor.java:37)
  |         at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:101)
  |         at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:61)
  |         at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:55)
  |         at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:138)
  |         at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:196)
  |         at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
  |         at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:35)
  |         at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:969)
  |         at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1114)
  |         at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
  |         at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:64)
  |         at de.casaconsult.club.contract.ctrl.ContractsDAOBean.getContractsByOffer(ContractsDAOBean.java:294)
  |         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.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
  |         at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
  |         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)
  |         at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  |         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.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
  |         at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:278)
  |         at org.jboss.ejb3.remoting.IsLocalInterceptor.invokeLocal(IsLocalInterceptor.java:79)
  |         at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:70)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:103)
  |         at $Proxy1467.getContractsByOffer(Unknown Source)
  |         at de.casaconsult.club.esb.service.offeritem.ejb.ProcessSchedulerBean.processScheduler(ProcessSchedulerBean.java:59)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:585)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
  |         at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
  |         at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
  |         at org.jboss.aspects.tx.TxInterceptor$Mandatory.invoke(TxInterceptor.java:305)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  |         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.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
  |         at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  |         at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:214)
  |         at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:184)
  |         at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:81)
  |         at $Proxy1462.processScheduler(Unknown Source)
  |         at de.casaconsult.club.esb.service.offeritem.DivideContractsIntoSetsAction.split(DivideContractsIntoSetsAction.java:93)
  |         at cz.flynet.esb.actions.AbstractSplitterAction.process(AbstractSplitterAction.java:142)
  |         at sun.reflect.GeneratedMethodAccessor277.invoke(Unknown Source)
  |         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:585)
  |         at org.jboss.soa.esb.listeners.message.ActionProcessorMethodInfo.processMethods(ActionProcessorMethodInfo.java:102)
  |         at org.jboss.soa.esb.listeners.message.OverriddenActionLifecycleProcessor.process(OverriddenActionLifecycleProcessor.java:74)
  |         at org.jboss.soa.esb.listeners.message.ActionProcessingPipeline.process(ActionProcessingPipeline.java:316)
  |         at org.jboss.soa.esb.listeners.message.MessageAwareListener$TransactionalRunner.run(MessageAwareListener.java:566)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
  |         at java.lang.Thread.run(Thread.java:595)
  | 

Does somebody know how to configure hibernate to avoid these errors?
Thanks for reply in advance
Pavel

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