I still didn't solve my problem but I tried to deploy it on my local machine 
and see I could somehow find what the issue is when deploying it on a remote 
machine.

Initially deploying it on my local machine everything worked fine
However when I add the following line I see that code breaks.

  | String host = "jnp://localhost:1099"; 
  | props.setProperty(Context.PROVIDER_URL, host);
  | I started getting the following exception 
  | 
  | 2006-11-03 10:17:18,319 ERROR [STDERR] java.lang.ClassCastException
  | 2006-11-03 10:17:18,319 ERROR [STDERR]      at 
com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229)
  | 2006-11-03 10:17:18,319 ERROR [STDERR]      at 
javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
  | 
As soon as I uncomment that props.setProperty(Context.PROVIDER_URL, host);
line everything works fine.  
I have seen this type of exception before when I tried invoking the ejb on a 
different computer as well.  I am not sure how to see what is the wrapper class 
for the object since the call to object.getClass().getName() prints something 
like this $Proxy184

This is my code again:

Properties props = new Properties();

props.setProperty(Context.INITIAL_CONTEXT_FACTORY,"org.jboss.security.jndi.JndiLoginInitialContextFactory");
                props.setProperty(Context.SECURITY_PRINCIPAL, "admin");
                props.setProperty(Context.SECURITY_CREDENTIALS, "admin");
                props.put(javax.naming.Context.URL_PKG_PREFIXES,  
"org.jboss.naming:org.jnp.interfaces");

                String host = "jnp://localhost:1099";
                props.setProperty(Context.PROVIDER_URL, host);
ctx = new InitialContext( props );

        Object object = ctx.lookup( "ejb/com/blah/Manager" );
                
                ManagerRemoteHome home = 
(ManagerRemoteHome)PortableRemoteObject.narrow ( object, 
ManagerRemoteHome.class);
                ManagerRemote manager = home.create();

Thanks

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