Problem in accessing a EJB bean through a servlet

Question

Dear all,
I'm a trying to call a stateless session bean which has its home and component interfaces, which prints the name it receives from the servlet client.
I'm trying to access a remote server EJB beans, which has been registered with JNDI & when deploying the EJB beans onto the Jboss server which operates in localhost: 8081 it has shown
20:19:16,890 INFO  [EjbModule] Deploying greetBean
   20:19:17,109 INFO  [ProxyFactory] Bound EJB Home 'greetBean' to jndi 'greetJndi'
20:19:17,125 INFO  [EJBDeployer] Deployed: file:/C:/jboss-4.0.5.GA/server/default/deploy/greet.jarThis is my servlet which is there in tomcat container which runs in localhost:8082 to access the bean:
import java.net.*;
import javax.ejb.*;
import javax.rmi.*;
import java.rmi.*;
import javax.naming.*;
import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class greetServlet extends HttpServlet
public void doPost
(HttpServletRequest req, HttpServletResponse res)
throws ServletException,IOException
res.setContentType("text/html");
PrintWriter out=res.getWriter();
try
     out.println("Inside servlet");
Properties props=new Properties();
props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
*props.put(Context.PROVIDER_URL, "localhost:8081");*
props.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
System.out.println("Properties ok");
Context ctx=new InitialContext(props);
System.out.println("context ok");
greetHome home = (greetHome)
ctx.lookup("greetJndi");
System.out.println("home ok");
greetRemote remote=home.create();
System.out.println("remote ok");
String a = req.getParameter("text1");
String s = remote.greetme(a);
System.out.println(s);
out.println(s);
catch(Exception e)
{System.out.println(""+e);}
}When i try to access the bean it's throwing a communication exception. The exact stack trace is:
javax.naming.CommunicationException: Could not obtain connection to any of these
      urls: localhost:8081 and discovery failed with error: javax.naming.Communicatio
     nException: Receive timed out [Root exception is java.net.SocketTimeoutException
     : Receive timed out] [Root exception is javax.naming.CommunicationException: Fai
     led to retrieve stub from server localhost:8081 [Root exception is java.io.EOFEx
ception]]Could anyone say why this is occuring and how this can be fixed.
Thanx in advance.

Answer 1

when i change the properties url attribute to jnp://localhost:1099 like
props.put(Context.PROVIDER_URL, "jnp://localhost:1099");It's throwing unmarshall exception:
javax.naming.CommunicationException [Root exception is java.rmi.ServerException:
RemoteException occurred in server thread; nested exception is:
        java.rmi.UnmarshalException: error unmarshalling arguments; nested excep
tion is:
        java.net.MalformedURLException: no protocol: Files/Apache]Could anyone throw light on this?