I successfully deployed a session bean with both iiop and jnp invoker. In the client, with using jnp, everythings work fine but when using iiop, PortableRemoteObject.narrow() return a null object. Once I put the stub class in the client class path, it works fine. Seems the dynamic downloading of the stub isn't working for iiop. Here's the client code: env.put(InitialContext.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory"); env.put(InitialContext.PROVIDER_URL, "corbaloc::lap-ww:3528/JBoss/Naming/root"); InitialContext context = new InitialContext(env); Object staHomeObj = context.lookup ("myTest/Status"); StatusHome staHome = (StatusHome)javax.rmi.PortableRemoteObject.narrow( (org.omg.CORBA.Object)staHomeObj, StatusHome.class); I have the following jar included in the client class path: $JBOSS_HOMEclient/logkit.jar" "$JBOSSLIB/jacorb.jar" "$JBOSSLIB/commons-logging.jar" "$JBOSSLIB/avalon-framework.jar" With the following client.policy: grant { permission java.security.AllPermission; }; I also inspected the staHomeObject ior string using jacorb's dior, which is matched to the one when jboss startup with the following java code base: http://lap-ww:8083/WebCL[myTest/Status]/ Is anything I have been missed? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3991441#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...