JNDI returns different results local vs. remote?

Question

I cannot get the Sun Application Server 8.1 to provide access to EJBs from an independant Tomcat. The server does seem to provide access to the EJB remote interfaces when the client war file is deployed within the SAS-internal web container. In trying to debug this problem, I have noticed that JNDI returns different objects in the two cases, even though the client in both cases is making a "remote" call to IIOP port 3700 to get the JNDI info!
When run within the SunAppServer internal web container, JNDI returns objects of type:
<package name>._<BeanName>RemoteHome_DynamicStub
(e.g. in my case com.aa.ejb._BusinessRemoteHome_DynamicStub for a bean named "Business")
However, when the same .war is deployed on an independant Tomcat running on the same machine, JNDI returns objects of type:
com.sun.corba.se.impl.corba.CORBAObjectImpl
Is this normal? Is there some way that I should be getting the DynamicStubs delivered to the remote clients?
I wouldn't be worried about this except that the PortableRemoteObject.narrow() method returns null when I try to use it on the CORBAObjectImpl references.
The relevant parts of my code are:
p.put( Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.cosnaming.CNCtxFactory" );
p.put( Context.PROVIDER_URL, "iiop://localhost:3700" );
//?? Note: this works the same whether I use "localhost" or my actual IP address.
String objName = "ejb/Business";     
InitialContext initial = new InitialContext(p);
out.println("<P>Looking up objName="+objName);
Object objref = initial.lookup(objName);
out.println("<P>objref="+objref);
out.println("<br>objref class="+objref.getClass().getName());
//?? When run in the SAS-internal web container, this displays:
//?? com.aa.ejb._BusinessRemoteHome_DynamicStub
//?? When run in a separate Tomcat, this displays:
//?? com.sun.corba.se.impl.corba.CORBAObjectImpl
BusinessRemoteHome home =
(BusinessRemoteHome)PortableRemoteObject.narrow(objref,
          BusinessRemoteHome.class);
//?? When run in the SAS-internal web container, this works correctly.
//?? When run in a separate Tomcat, this returns null!

Answer 1

Okay - a good night's sleep helped. Found the solution:
Properties props = new Properties();
props.setProperty(Context.PROVIDER_URL, "iiop://localhost:3700");
props.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.sun.appserv.naming.S1ASCtxFactory");
Context ctx = new InitialContext(props);
Object ref = ctx.lookup("ejb/someEJB");
etc.Hope this helps.
Cheers
Keith