I've got this because I'm modifying an object managed by hibernate in an asynchronous method. Persisting new objects work fine though.
The error occur after the method is run. I'm usins seam CVS. Any ideas ? here is the full stack : 19:07:48,163 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator_2] TwoPhaseCoordinator.beforeCompletion - failed for [EMAIL PROTECTED] | javax.persistence.PersistenceException: javax.el.ELException: java.lang.IllegalArgumentException: Stack must not be null | at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:527) | at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:114) | at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:247) | at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:86) | at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:177) | at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1382) | at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:135) | at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:87) | at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:175) | at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87) | at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) | 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 $Proxy1350.run(Unknown Source) | 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:597) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31) | at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) | at org.jboss.seam.async.AsynchronousInterceptor.aroundInvoke(AsynchronousInterceptor.java:50) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106) | at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54) | at org.javassist.tmp.java.lang.Object_$$_javassist_11.run(Object_$$_javassist_11.java) | 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:597) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.async.AsynchronousInvocation.call(AsynchronousInvocation.java:52) | at org.jboss.seam.async.Asynchronous.executeInContexts(Asynchronous.java:76) | at org.jboss.seam.async.Asynchronous.execute(Asynchronous.java:45) | at org.jboss.seam.async.ThreadPoolDispatcher$RunnableAsynchronous.run(ThreadPoolDispatcher.java:114) | at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) | at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) | at java.util.concurrent.FutureTask.run(FutureTask.java:138) | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98) | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:207) | at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) | at java.lang.Thread.run(Thread.java:619) | Caused by: javax.el.ELException: java.lang.IllegalArgumentException: Stack must not be null | at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:332) | at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:341) | at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58) | at org.jboss.el.parser.AstValue.invoke(AstValue.java:96) | at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) | at org.jboss.seam.core.Expressions$2.invoke(Expressions.java:174) | at org.jboss.seam.core.Events.raiseEvent(Events.java:68) | at org.jboss.seam.security.Identity.checkPermission(Identity.java:541) | at org.jboss.seam.security.Identity.checkEntityPermission(Identity.java:705) | at org.jboss.seam.security.EntitySecurityListener.preUpdate(EntitySecurityListener.java:44) | 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:597) | at org.hibernate.ejb.event.ListenerCallback.invoke(ListenerCallback.java:31) | at org.hibernate.ejb.event.EntityCallbackHandler.callback(EntityCallbackHandler.java:78) | at org.hibernate.ejb.event.EntityCallbackHandler.preUpdate(EntityCallbackHandler.java:63) | at org.hibernate.ejb.event.EJB3FlushEntityEventListener.invokeInterceptor(EJB3FlushEntityEventListener.java:43) | at org.hibernate.event.def.DefaultFlushEntityEventListener.handleInterception(DefaultFlushEntityEventListener.java:308) | at org.hibernate.event.def.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:248) | at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:128) | 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.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) | at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000) | at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338) | at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:515) | ... 57 more | Caused by: java.lang.IllegalArgumentException: Stack must not be null | at org.jboss.seam.core.ConversationEntry.<init>(ConversationEntry.java:39) | at org.jboss.seam.core.ConversationEntries.createConversationEntry(ConversationEntries.java:53) | at org.jboss.seam.core.Manager.createConversationEntry(Manager.java:535) | at org.jboss.seam.core.Manager.beginConversation(Manager.java:556) | at org.jboss.seam.core.Conversation.reallyBegin(Conversation.java:223) | at org.jboss.seam.core.Conversation.begin(Conversation.java:259) | at org.jboss.seam.faces.Redirect.captureCurrentView(Redirect.java:109) | 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:597) | at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:328) | ... 83 more View the original post : 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