0 Replies Latest reply on May 23, 2005 2:10 PM by Mateusz Waglik

    problem in Jboss with postgreSQL

    Mateusz Waglik Newbie

      Hi I try to connect to postgreSql server from my bean on Jboss.

      When I execute query in simple java class it works and when I put it into EJB it crush down.

      query is very simple just to test if its working :

      String sql = "SELECT * FROM urzytkownicy";
      ResultSet rs = stmt.executeQuery(sql);

      It is in public method in EJB ... I try to run it from a client


      I receive an error :
      java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
      java.rmi.ServerException: RuntimeException; nested exception is:
      java.lang.NullPointerException
      at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:292)
      at sun.rmi.transport.Transport$1.run(Transport.java:148)
      at java.security.AccessController.doPrivileged(Native Method)
      at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
      at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
      at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
      at java.lang.Thread.run(Thread.java:534)
      at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
      at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
      at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
      at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
      at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:118)
      at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:163)
      at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:103)
      at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
      at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:55)
      at org.jboss.proxy.ejb.StatefulSessionInterceptor.invoke(StatefulSessionInterceptor.java:106)
      at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:91)
      at $Proxy1.userVeryfication(Unknown Source)
      at ProbaEJB.main(ProbaEJB.java:35)

      and so on
      ....