1 Reply Latest reply on Jan 14, 2008 7:19 PM by jianxin zhou

    EJB 3873 Can not get connection to server

    jianxin zhou Newbie

      I got a frustrated problem when I try to call more than two method in same remote interface from client, sometimes it run correctlly and give me right answer but 90% will get a Exception listed bellow. I tryed likely hundreds times and figure out that if I only call one method at a time , it work fine. but if I
      call two method closely it will throw this Exception...hep thanks.



      public static void main(String[] args)
       {
      
       InitialContext ctx;
       try
       {
       ctx = new javax.naming.InitialContext();
       ctx.addToEnvironment(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
       ctx.addToEnvironment(Context.PROVIDER_URL, "jnp://localhost");
       ctx.addToEnvironment("InitialContext.SECURITY_PRINCIPAL", "user");
       ctx.addToEnvironment("InitialContext.SECURITY_CREDENTIALS", "password");
      
       ctx.addToEnvironment("java.naming.factory.url.pkgs", "org.jboss.naming");
       HelloWorldRemote remote = (HelloWorldRemote)ctx.lookup("HelloWorld/remote");
       System.out.println(remote.sayHello("ken"));
      
       System.out.println("res =" + remote.getRes());
       System.out.println("res + 10 = " + remote.add(10));
      
       System.out.println("res =" + remote.getRes());
       System.out.println("res + 20 = " + remote.add(20));
       System.out.println("res =" + remote.getRes());
      
       ctx.close();
       }
       catch (NamingException e)
       {
       // TODO Auto-generated catch block
       e.printStackTrace();
       }
      
       }
      



      it will keep giving me Exception :

      hello world ken
      Exception in thread "main" org.jboss.remoting.CannotConnectException: Can not get connection to server. Problem establishing socket connection for InvokerLocator [socket://127.0.0.1:3873/]
       at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:532)
       at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:122)
       at org.jboss.remoting.Client.invoke(Client.java:1634)
       at org.jboss.remoting.Client.invoke(Client.java:548)
       at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:62)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:67)
       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:74)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:107)
       at $Proxy0.getRes(Unknown Source)
       at TestMain.main(TestMain.java:31)
      Caused by: java.lang.reflect.InvocationTargetException
       at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
       at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
       at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
       at java.lang.reflect.Constructor.newInstance(Unknown Source)
       at org.jboss.remoting.transport.socket.SocketClientInvoker.createClientSocket(SocketClientInvoker.java:152)
       at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.getConnection(MicroSocketClientInvoker.java:856)
       at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:525)
       at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:122)
       at org.jboss.remoting.Client.invoke(Client.java:1634)
       at org.jboss.remoting.Client.invoke(Client.java:548)
       at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:62)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:67)
       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:74)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:107)
       at $Proxy0.getRes(Unknown Source)
       at TestMain.main(TestMain.java:31)
       at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:74)
       ... 10 more
      Caused by: java.net.SocketException: Software caused connection abort: socket write error
       at java.net.SocketOutputStream.socketWrite0(Native Method)
       at java.net.SocketOutputStream.socketWrite(Unknown Source)
       at java.net.SocketOutputStream.write(Unknown Source)
       at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
       at java.io.BufferedOutputStream.flush(Unknown Source)
       at java.io.ObjectOutputStream$BlockDataOutputStream.flush(Unknown Source)
       at java.io.ObjectOutputStream.flush(Unknown Source)
       at org.jboss.remoting.marshal.serializable.SerializableMarshaller.getMarshallingStream(SerializableMarshaller.java:90)
       at org.jboss.remoting.marshal.serializable.SerializableMarshaller.getMarshallingStream(SerializableMarshaller.java:72)
       at org.jboss.remoting.transport.socket.ClientSocketWrapper.createOutputStream(ClientSocketWrapper.java:204)
       at org.jboss.remoting.transport.socket.ClientSocketWrapper.createStreams(ClientSocketWrapper.java:163)
       at org.jboss.remoting.transport.socket.ClientSocketWrapper.<init>(ClientSocketWrapper.java:66)
       at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
       at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
       at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
       at java.lang.reflect.Constructor.newInstance(Unknown Source)
       at org.jboss.remoting.transport.socket.SocketClientInvoker.createClientSocket(SocketClientInvoker.java:152)
       at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.getConnection(MicroSocketClientInvoker.java:856)
       at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:525)
       at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:122)
       at org.jboss.remoting.Client.invoke(Client.java:1634)
       at org.jboss.remoting.Client.invoke(Client.java:548)
       at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:62)
       ... 10 more
      
      


        • 1. Re: EJB 3873 Can not get connection to server
          jianxin zhou Newbie

           

          "zjx_cool" wrote:
          I got a frustrated problem when I try to call more than two method in same remote interface from client, sometimes it run correctlly and give me right answer but 90% will get a Exception listed bellow. I tryed likely hundreds times and figure out that if I only call one method at a time , it work fine. but if I
          call two method closely it will throw this Exception...help thanks.
          my env is Jboss 4.2.2GA , jdk 1.6.0_03


          public static void main(String[] args)
           {
          
           InitialContext ctx;
           try
           {
           ctx = new javax.naming.InitialContext();
           ctx.addToEnvironment(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
           ctx.addToEnvironment(Context.PROVIDER_URL, "jnp://localhost");
           ctx.addToEnvironment("InitialContext.SECURITY_PRINCIPAL", "user");
           ctx.addToEnvironment("InitialContext.SECURITY_CREDENTIALS", "password");
          
           ctx.addToEnvironment("java.naming.factory.url.pkgs", "org.jboss.naming");
           HelloWorldRemote remote = (HelloWorldRemote)ctx.lookup("HelloWorld/remote");
           System.out.println(remote.sayHello("ken"));
          
           System.out.println("res =" + remote.getRes());
           System.out.println("res + 10 = " + remote.add(10));
          
           System.out.println("res =" + remote.getRes());
           System.out.println("res + 20 = " + remote.add(20));
           System.out.println("res =" + remote.getRes());
          
           ctx.close();
           }
           catch (NamingException e)
           {
           // TODO Auto-generated catch block
           e.printStackTrace();
           }
          
           }
          



          it will keep giving me Exception :

          hello world ken
          Exception in thread "main" org.jboss.remoting.CannotConnectException: Can not get connection to server. Problem establishing socket connection for InvokerLocator [socket://127.0.0.1:3873/]
           at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:532)
           at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:122)
           at org.jboss.remoting.Client.invoke(Client.java:1634)
           at org.jboss.remoting.Client.invoke(Client.java:548)
           at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:62)
           at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
           at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:67)
           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:74)
           at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
           at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:107)
           at $Proxy0.getRes(Unknown Source)
           at TestMain.main(TestMain.java:31)
          Caused by: java.lang.reflect.InvocationTargetException
           at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
           at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
           at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
           at java.lang.reflect.Constructor.newInstance(Unknown Source)
           at org.jboss.remoting.transport.socket.SocketClientInvoker.createClientSocket(SocketClientInvoker.java:152)
           at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.getConnection(MicroSocketClientInvoker.java:856)
           at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:525)
           at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:122)
           at org.jboss.remoting.Client.invoke(Client.java:1634)
           at org.jboss.remoting.Client.invoke(Client.java:548)
           at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:62)
           at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
           at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:67)
           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:74)
           at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
           at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:107)
           at $Proxy0.getRes(Unknown Source)
           at TestMain.main(TestMain.java:31)
           at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:74)
           ... 10 more
          Caused by: java.net.SocketException: Software caused connection abort: socket write error
           at java.net.SocketOutputStream.socketWrite0(Native Method)
           at java.net.SocketOutputStream.socketWrite(Unknown Source)
           at java.net.SocketOutputStream.write(Unknown Source)
           at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
           at java.io.BufferedOutputStream.flush(Unknown Source)
           at java.io.ObjectOutputStream$BlockDataOutputStream.flush(Unknown Source)
           at java.io.ObjectOutputStream.flush(Unknown Source)
           at org.jboss.remoting.marshal.serializable.SerializableMarshaller.getMarshallingStream(SerializableMarshaller.java:90)
           at org.jboss.remoting.marshal.serializable.SerializableMarshaller.getMarshallingStream(SerializableMarshaller.java:72)
           at org.jboss.remoting.transport.socket.ClientSocketWrapper.createOutputStream(ClientSocketWrapper.java:204)
           at org.jboss.remoting.transport.socket.ClientSocketWrapper.createStreams(ClientSocketWrapper.java:163)
           at org.jboss.remoting.transport.socket.ClientSocketWrapper.<init>(ClientSocketWrapper.java:66)
           at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
           at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
           at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
           at java.lang.reflect.Constructor.newInstance(Unknown Source)
           at org.jboss.remoting.transport.socket.SocketClientInvoker.createClientSocket(SocketClientInvoker.java:152)
           at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.getConnection(MicroSocketClientInvoker.java:856)
           at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:525)
           at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:122)
           at org.jboss.remoting.Client.invoke(Client.java:1634)
           at org.jboss.remoting.Client.invoke(Client.java:548)
           at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:62)
           ... 10 more