We have multiple JBoss servers running. One (that runs an EJB) is still at 3.2.6.

I have a web application running on another server and this is being upgraded to 4.0.1. The ejb call to the 3.2.6 server is now not working on the 4.0.1 server and I can't figure out why.

Here is how I am referencing it:

Hashtable props = new Hashtable();
try {
 props.put(
 Context.INITIAL_CONTEXT_FACTORY,
 "org.jnp.interfaces.NamingContextFactory");
 props.put(Context.PROVIDER_URL, IP + ":" + PORT);
 props.put(
 Context.URL_PKG_PREFIXES,
 "org.jboss.naming:org.jnp.interfaces");
 Context jndiContext = new InitialContext(props);
 Object objRef = jndiContext.lookup("PaymenTechHome");
 homeRef =
 (PaymenTechHome) PortableRemoteObject.narrow(
 objRef,
 PaymenTechHome.class);
} catch (Exception E) {
 log.error(E.getMessage());
} finally {
 props = null;
}

java.lang.reflect.InvocationTargetException
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:324)