[jboss-user] [EJB/JBoss] - RuntimeException: java.lang.NullPointerException in JBoss 4.

[tonylmai]

Does anyone know the cause of this exception?

Thanks

------------------
anonymous wrote : java.lang.RuntimeException: java.lang.NullPointerException
  | 	at org.jboss.ejb3.interceptor.LifecycleInterceptorHandler.postConstruct(LifecycleInterceptorHandler.java:113)
  | 	at org.jboss.ejb3.EJBContainer.invokePostConstruct(EJBContainer.java:505)
  | 	at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:112)
  | 	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:77)
  | 	at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
  | 	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:263)
  | 	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:59)
  | 	at org.jboss.ejb3.entity.ManagedEntityManagerFactory.getTransactionScopedEntityManager(ManagedEntityManagerFactory.java:164)
  | 	at org.jboss.ejb3.entity.TransactionScopedEntityManager.createQuery(TransactionScopedEntityManager.java:125)
  | 	at com.judots.exchange.maintenance.ExchangeMaintenanceBean.init(ExchangeMaintenanceBean.java:49)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  | 	at java.lang.reflect.Method.invoke(Unknown Source)
  | 	at org.jboss.ejb3.interceptor.LifecycleInvocationContextImpl.proceed(LifecycleInvocationContextImpl.java:159)
  | 	at org.jboss.ejb3.interceptor.LifecycleInterceptorHandler.postConstruct(LifecycleInterceptorHandler.java:109)
  | 	at org.jboss.ejb3.EJBContainer.invokePostConstruct(EJBContainer.java:505)
  | 	at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:112)
  | 	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:77)
  | 	at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
  | 	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:263)
  | 	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:53)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
  | 	at $Proxy6.loadExchangeData(Unknown Source)
  | 	at com.judots.exchange.test.LoadExchangeData.openExchange(LoadExchangeData.java:67)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  | 	at java.lang.reflect.Method.invoke(Unknown Source)
  | 	at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
  | 	at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
  | 	at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
  | 	at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
  | 	at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
  | 	at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
  | 	at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
  | 	at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
  | 	at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
  | 	at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
  | 	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
  | 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
  | 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
  | 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
  | 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
  | 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
  | 
  | 
  | 

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