Unable to connect to remote EJB

Question

Hi All,
I have a remote Session Bean deployed on JBOSS App Server on a linux machine. and I am trying to call the session bean method from a servlet, which is deployed on Tomcat 5.5 web server on windows machine.
My Session Code:_
// My seesion bean
public class HelloSessionBean implements SessionBean, HelloBeanSessionRemote
      private SessionContext context;
      public void setSessionContext(SessionContext aContext)
         context = aContext;   
      public void ejbActivate()
      public void ejbPassivate()
      public void ejbRemove()
      public void ejbCreate()
      public String hello()
                SOP("Hi to ALL");
// my remote Interfaces
public interface HelloBeanSessionRemote extends EJBObject, HelloBeanSessionRemoteBusiness
public interface HelloBeanSessionRemoteBusiness
     public String hello()  throws RemoteException;     
//my home interface
public interface HelloSessionRemoteHome extends EJBHome
    HelloBeanSessionRemote create()  throws CreateException, RemoteException;
My Servlet Code:_
// Servlet in TOMCAT
public class RequestHandler extends HttpServlet
      protected void processRequest(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException
                Context context = getInitialContext();
                    Object objectReference = context.lookup("HelloSessionBean");
                    HelloSessionRemoteHome home = (HelloSessionRemoteHome)
                                PortableRemoteObject.narrow(objectReference, HelloSessionRemoteHome.class);
               HelloBeanSessionRemoteBusiness remoteBusiness =  (HelloBeanSessionRemoteBusiness) home.create();          
          remoteBusiness.hello();
      public Context getInitialContext() throws Exception
               Properties jbossProperties = new Properties();
               jbossProperties.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
               jbossProperties.put(Context.PROVIDER_URL, "jnp://myIP:1199");
               jbossProperties.put(Context.URL_PKG_PREFIXES,"org.jboss.naming:org.jnp.interfaces");
               return new InitialContext(jbossProperties);
}Now I am trying to call the session bean method from my servlet. But I am continously getting the following:
javax.naming.CommunicationException [Root exception is java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is:
     java.net.SocketException: Connection reset]
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:722)
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
     at javax.naming.InitialContext.lookup(Unknown Source)Please anyone try to sort my issue. I have been trying, but cudnt get a solution. Is it because both the JVMs are installed on a different platform OS.
Thanking You.

Answer 1

Hi All,
I have a remote Session Bean deployed on JBOSS App Server on a linux machine. and I am trying to call the session bean method from a servlet, which is deployed on Tomcat 5.5 web server on windows machine.
My Session Code:_
// My seesion bean
public class HelloSessionBean implements SessionBean, HelloBeanSessionRemote
      private SessionContext context;
      public void setSessionContext(SessionContext aContext)
         context = aContext;   
      public void ejbActivate()
      public void ejbPassivate()
      public void ejbRemove()
      public void ejbCreate()
      public String hello()
                SOP("Hi to ALL");
// my remote Interfaces
public interface HelloBeanSessionRemote extends EJBObject, HelloBeanSessionRemoteBusiness
public interface HelloBeanSessionRemoteBusiness
     public String hello()  throws RemoteException;     
//my home interface
public interface HelloSessionRemoteHome extends EJBHome
    HelloBeanSessionRemote create()  throws CreateException, RemoteException;
My Servlet Code:_
// Servlet in TOMCAT
public class RequestHandler extends HttpServlet
      protected void processRequest(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException
                Context context = getInitialContext();
                    Object objectReference = context.lookup("HelloSessionBean");
                    HelloSessionRemoteHome home = (HelloSessionRemoteHome)
                                PortableRemoteObject.narrow(objectReference, HelloSessionRemoteHome.class);
               HelloBeanSessionRemoteBusiness remoteBusiness =  (HelloBeanSessionRemoteBusiness) home.create();          
          remoteBusiness.hello();
      public Context getInitialContext() throws Exception
               Properties jbossProperties = new Properties();
               jbossProperties.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
               jbossProperties.put(Context.PROVIDER_URL, "jnp://myIP:1199");
               jbossProperties.put(Context.URL_PKG_PREFIXES,"org.jboss.naming:org.jnp.interfaces");
               return new InitialContext(jbossProperties);
}Now I am trying to call the session bean method from my servlet. But I am continously getting the following:
javax.naming.CommunicationException [Root exception is java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is:
     java.net.SocketException: Connection reset]
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:722)
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
     at javax.naming.InitialContext.lookup(Unknown Source)Please anyone try to sort my issue. I have been trying, but cudnt get a solution. Is it because both the JVMs are installed on a different platform OS.
Thanking You.