0 Replies Latest reply on Dec 21, 2004 3:54 AM by Naveen Naveen

    java.rmi.ServerException: Could not instantiate bean

    Naveen Naveen Newbie

      I have written a simple CMP Entity Bean,While Running the Client I am getting the Exception,I have included all jars needed.

      EXCEPTION IS
      --------------------------------------------------------------------------------------

      err in HomeCreatejava.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
      java.rmi.ServerException: Could not instantiate bean; nested exception is:
      java.lang.InstantiationException; nested exception is:
      java.rmi.ServerException: Could not instantiate bean; nested exception is:
      java.lang.InstantiationException
      java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
      java.rmi.ServerException: Could not instantiate bean; nested exception is:
      java.lang.InstantiationException; nested exception is:
      java.rmi.ServerException: Could not instantiate bean; nested exception is:
      java.lang.InstantiationException
      at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:287)
      at sun.rmi.transport.Transport$1.run(Transport.java:151)
      at java.security.AccessController.doPrivileged(Native Method)
      at sun.rmi.transport.Transport.serviceCall(Transport.java:147)
      at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:463)
      at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:704)
      at java.lang.Thread.run(Thread.java:539)
      at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall .java:250)
      at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:226)
      at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:136)
      at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
      at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.j ava:128)
      at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:108)
      at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:73)
      at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:76)
      at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:185)
      at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76)
      at $Proxy0.create(Unknown Source)
      at StudentClient.main(StudentClient.java:39)
      Caused by: java.rmi.ServerException: Could not instantiate bean; nested exception is:
      java.lang.InstantiationException; nested exception is:
      java.rmi.ServerException: Could not instantiate bean; nested exception is:
      java.lang.InstantiationException
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.ja va:140)
      at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.jav a:167)
      at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:52)
      at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:1 04)
      at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:109)
      at org.jboss.ejb.EntityContainer.invokeHome(EntityContainer.java:487)
      at org.jboss.ejb.Container.invoke(Container.java:726)
      at org.jboss.ejb.EntityContainer.invoke(EntityContainer.java:1055)
      at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:491)
      at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:362)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:42)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:28)
      at java.lang.reflect.Method.invoke(Method.java:313)
      at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:256)
      at sun.rmi.transport.Transport$1.run(Transport.java:151)
      at java.security.AccessController.doPrivileged(Native Method)
      at sun.rmi.transport.Transport.serviceCall(Transport.java:147)
      at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:463)
      at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:704)
      at java.lang.Thread.run(Thread.java:539)
      Caused by: java.rmi.ServerException: Could not instantiate bean; nested exception is:
      java.lang.InstantiationException
      at org.jboss.ejb.plugins.AbstractInstancePool.get(AbstractInstancePool.java:211)
      at org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(EntityInstanceInterc eptor.java:122)
      at org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome(EntityLockInterceptor.ja va:79)
      at org.jboss.ejb.plugins.EntityCreationInterceptor.invokeHome(EntityCreationInterc eptor.java:44)
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.ja va:98)
      ... 20 more
      Caused by: java.lang.InstantiationException
      at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(Instantia tionExceptionConstructorAccessorImpl.java:33)
      at java.lang.reflect.Constructor.newInstance(Constructor.java:263)
      at java.lang.Class.newInstance0(Class.java:301)
      at java.lang.Class.newInstance(Class.java:254)
      at org.jboss.ejb.plugins.BMPPersistenceManager.createBeanClassInstance(BMPPersiste nceManager.java:145)
      at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.createBeanClas sInstance(CachedConnectionInterceptor.java:251)
      at org.jboss.ejb.EntityContainer.createBeanClassInstance(EntityContainer.java:294)
      at org.jboss.ejb.plugins.AbstractInstancePool.get(AbstractInstancePool.java:208)
      ... 24 more
      ------------------------------------------------------------------------------- ------

      Pls explain what can i do now.


      regards,
      NaveenBabu.A