[jboss-jira] [JBoss JIRA] (WFLY-6342) Transactional CDI event from JPA callback

From a weld-dev IRC conversation on this:

Transactional CDI event from JPA callback ----------------------------------------- Key: WFLY-6342 URL: https://issues.jboss.org/browse/WFLY-6342 Project: WildFly Issue Type: Feature Request Components: CDI / Weld, JPA / Hibernate Affects Versions: 10.0.0.Final Reporter: Giovanni Lovato Assignee: Stuart Douglas Sending transactional CDI events from an JPA callback during a managed flush throws {{IllegalStateException (ARJUNA016082)}} in Wildfly 8.2.0.Final. The following Arquillian test project on GitHub: [https://github.com/wrungel/bugs/tree/master/tx-observer-test] shows the error. The JPA Listener (CDI Event sender): {code} public class UpdateListener { @PreUpdate public void callback(Object object) { if (object instanceof FooEntity) { getBeanManager().fireEvent(object); } } } {code} CDI event observer: {code} public class UpdateObserver { public void BEFORE_COMPLETION(@Observes(during = TransactionPhase.BEFORE_COMPLETION) FooEntity foo) { ... } } {code} Transactional service: {code} @Transactional public class FooService { @PersistenceContext(unitName = "default") EntityManager em; public void managedFlush() { // change entity property: em.find(FooEntity.class, ID).setName(UUID.randomUUID().toString()); } } {code} Calling {{managedFlush()}} causes the following error: {code} WARN [com.arjuna.ats.arjuna] ARJUNA012125: TwoPhaseCoordinator.beforeCompletion - failed for SynchronizationImple< 0:ffffac136c07:4115d5ad:553685a6:11, org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization@458cbc17 >: javax.persistence.PersistenceException: error during managed flush at org.hibernate.jpa.spi.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1887) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorNonTrackingImpl.beforeCompletion(SynchronizationCallbackCoordinatorNonTrackingImpl.java:119) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:50) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:358) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:91) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:162) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1166) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:126) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75) at com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorBase.endTransaction(TransactionalInterceptorBase.java:147) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorBase.invokeInOurTx(TransactionalInterceptorBase.java:93) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorRequired.intercept(TransactionalInterceptorRequired.java:52) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_20] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_20] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_20] at java.lang.reflect.Method.invoke(Method.java:483) [rt.jar:1.8.0_20] at org.jboss.weld.interceptor.reader.SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(SimpleInterceptorInvocation.java:74) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.interceptor.chain.AbstractInterceptionChain.invokeNext(AbstractInterceptionChain.java:124) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.interceptor.chain.AbstractInterceptionChain.invokeNextInterceptor(AbstractInterceptionChain.java:102) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:43) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:36) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:51) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at frol.txobserver.FooService$Proxy$_$$_WeldSubclass.managedFlush(Unknown Source) [f4da9dfa-ba67-446a-abe8-e5172fa8d5f3.jar:] at frol.txobserver.TxObserverTest.error_during_managed_flush(TxObserverTest.java:44) [f4da9dfa-ba67-446a-abe8-e5172fa8d5f3.jar ... Caused by: java.lang.RuntimeException: java.lang.IllegalStateException: ARJUNA016082: Synchronizations are not allowed! Transaction status isActionStatus.RUNNING at org.jboss.as.weld.services.bootstrap.WeldTransactionServices.registerSynchronization(WeldTransactionServices.java:85) [wildfly-weld-8.2.0.Final.jar:8.2.0.Final] at org.jboss.weld.event.TransactionalObserverNotifier.deferNotification(TransactionalObserverNotifier.java:67) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.event.TransactionalObserverNotifier.notifyObserver(TransactionalObserverNotifier.java:48) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:124) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:117) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:673) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at org.jboss.weld.util.ForwardingBeanManager.fireEvent(ForwardingBeanManager.java:101) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05] at frol.txobserver.UpdateListener.callback(UpdateListener.java:36) [f4da9dfa-ba67-446a-abe8-e5172fa8d5f3.jar:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_20] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_20] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_20] at java.lang.reflect.Method.invoke(Method.java:483) [rt.jar:1.8.0_20] at org.hibernate.jpa.event.internal.jpa.ListenerCallback.performCallback(ListenerCallback.java:49) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.jpa.event.internal.jpa.CallbackRegistryImpl.callback(CallbackRegistryImpl.java:112) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.jpa.event.internal.jpa.CallbackRegistryImpl.preUpdate(CallbackRegistryImpl.java:76) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.jpa.event.internal.core.JpaFlushEntityEventListener.invokeInterceptor(JpaFlushEntityEventListener.java:67) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.event.internal.DefaultFlushEntityEventListener.handleInterception(DefaultFlushEntityEventListener.java:342) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.event.internal.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:293) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:160) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:231) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:102) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:55) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1222) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:425) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorNonTrackingImpl.beforeCompletion(SynchronizationCallbackCoordinatorNonTrackingImpl.java:114) [hibernate-core-4.3.7.Final.jar:4.3.7.Final] ... 160 more Caused by: java.lang.IllegalStateException: ARJUNA016082: Synchronizations are not allowed! Transaction status isActionStatus.RUNNING at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.registerSynchronizationImple(TransactionImple.java:375) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.registerSynchronization(TransactionImple.java:352) [narayana-jts-jacorb-5.0.0.Final.jar:5.0.0.Final (revision: 9aa71)] at org.jboss.as.weld.services.bootstrap.WeldTransactionServices.registerSynchronization(WeldTransactionServices.java:83) [wildfly-weld-8.2.0.Final.jar:8.2.0.Final] ... 184 more {code} Some possibly interesting observations: Non transactional CDI event observer {{(@Observes(during = TransactionPhase.IN_PROGRESS) ...)}} works.