I've got a stateless SessionBean with an injected PersistenceContext using:
| @PersistenceContext | private EntityManager em; | I now try to get a handle to the underlying EntityManagerFactory using em.getDelegate() which throws a lengthy NullPointerException. I am calling this in @PostConstruct and I checked, that the EntityManager is really not null - so the NPE comes from somewhere deeper: | java.lang.RuntimeException: java.lang.NullPointerException | at org.jboss.ejb3.interceptor.LifecycleInterceptorHandler.postConstruct(LifecycleInterceptorHandler.java:109) | at org.jboss.ejb3.EJBContainer.invokePostConstruct(EJBContainer.java:582) | at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:108) | at org.jboss.ejb3.ThreadlocalPool.get(ThreadlocalPool.java:48) | at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:54) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | 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:227) | at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106) | at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) | at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828) | at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681) | at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358) | at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398) | at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239) | Caused by: java.lang.NullPointerException | at org.jboss.ejb3.entity.ManagedEntityManagerFactory.getNonTxEntityManager(ManagedEntityManagerFactory.java:58) | at org.jboss.ejb3.entity.ManagedEntityManagerFactory.getTransactionScopedEntityManager(ManagedEntityManagerFactory.java:163) | at org.jboss.ejb3.entity.TransactionScopedEntityManager.getDelegate(TransactionScopedEntityManager.java:79) | at de.vierundsechzig.springer.kompendium.compass.CompassProvider.initializeCompass(CompassProvider.java:79) | at org.jboss.ejb3.interceptor.LifecycleInvocationContextImpl.proceed(LifecycleInvocationContextImpl.java:159) | at org.jboss.ejb3.interceptor.LifecycleInterceptorHandler.postConstruct(LifecycleInterceptorHandler.java:105) | at org.jboss.ejb3.EJBContainer.invokePostConstruct(EJBContainer.java:582) | at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:108) | at org.jboss.ejb3.ThreadlocalPool.get(ThreadlocalPool.java:48) | at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:54) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | 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:227) | at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106) | at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) | at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828) | at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681) | at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358) | at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398) | at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239) | at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:190) | at org.jboss.remoting.Client.invoke(Client.java:525) | at org.jboss.remoting.Client.invoke(Client.java:488) | at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:55) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:78) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102) | at $Proxy6.getResults(Unknown Source) | at de.vierundsechzig.springer.kompendium.test.PersistenceManagerTests.testSearch(PersistenceManagerTests.java:71) | ... Removed 21 stack frames | Does anyone have an idea, where this NPE comes from?! cheers&thx stf View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3975076#3975076 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3975076 _______________________________________________ jboss-user mailing list [email protected] https://lists.jboss.org/mailman/listinfo/jboss-user
