1 Reply Latest reply on Dec 10, 2012 5:49 AM by Wolf-Dieter Fink

    JNDI Issue invoking remote ejb

    H R Newbie

      Hello all

       

      I have two computers in a LAN in my home.

      Connfigured, deployed a sample EJB 2.2 application on Jboss 6 server on a computer .

       

      Now, from another computer i have created a client something like this. I have placed the EJB jar on my client machine .

       

      package com.hello;

       

      import java.util.Properties;

       

      import javax.naming.InitialContext;

      import javax.rmi.PortableRemoteObject;

       

       

      import com.hello.home.HelloRemote;

      import com.hello.home.IHelloHome;

       

      public class HelloClient {

       

      /**

      * @param args

      */

      public static void main(String[] args) {

       

         // Set up the naming provider; this may not always be

             // necessary, depending

             // on how your Java system is configured.

             Properties env = new Properties();

             env.setProperty("java.naming.factory.initial",

                       "org.jnp.interfaces.NamingContextFactory");

             env.setProperty("java.naming.provider.url",  "http://Harish_Dev:1099");

             env.setProperty("java.naming.factory.url.pkgs",  "org.jboss.naming");

       

             // Enclosing the whole process in a single `try'

             // block is not an ideal way

             // to do exception handling, but I don't want to clutter

             // the program up with catch blocks

             try

             {

                // Get a naming context

                InitialContext jndiContext = new InitialContext(env);

                System.out.println("Got context");

               

                // Get a reference to the Interest Bean

                Object ref  = jndiContext.lookup("HelloWorld");

                System.out.println("Got reference");

               

                // Get a reference from this to the Bean's Home interface

                IHelloHome home = (IHelloHome)

                PortableRemoteObject.narrow (ref, IHelloHome.class);

                  

                // Create an Interest object from the Home interface

                HelloRemote remote = home.create();

       

                System.out.println(remote.sayHello());

             }

             catch(Exception e)

             {

                System.out.println(e.toString());

             }

          }

      // TODO Auto-generated method stub

       

      }

       

       

      I am getting the followign error when i execute the above code:

      Got context

      javax.naming.CommunicationException: Could not obtain connection to any of these urls: http://Harish_Dev:1099 and discovery failed with error: javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out]

      at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1690)

      at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1761)

      at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:695)

      at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:688)

      at javax.naming.InitialContext.lookup(Unknown Source)

      at com.hello.HelloClient.main(HelloClient.java:39)

      Caused by: java.net.SocketTimeoutException: Receive timed out

      at java.net.TwoStacksPlainDatagramSocketImpl.receive0(Native Method)

      at java.net.TwoStacksPlainDatagramSocketImpl.receive(Unknown Source)

      at java.net.DatagramSocket.receive(Unknown Source)

      at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1659)

      ... 5 more

      [Root exception is javax.naming.CommunicationException: Failed to connect to server http://Harish_Dev:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server http://Harish_Dev:1099 [Root exception is java.net.UnknownHostException: http://Harish_Dev]]]

       

      any help would be greatly appreciated. thanks in advance

       

      Regards

      Harish