[jboss-user] [Beginners Corner] - ClassCastException with PortableRemoteObject.narrow call

[srki]

I want to call an ejb component located on a different machine and I can not get it to work.  So I tried to deploy it under local copy of jboss and try to invoke it.  I was able to call it.  So i tried adding Context.PROVIDER_URL with my localhost set.  I always get the  ClassCastException.  If I am remove the line from below everything works fine.  

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


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.narr
ow(PortableRemoteObject.java:229)
2006-11-03 10:17:18,319 ERROR [STDERR] 	at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObjec
t.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. When I inspect the object with reflection I see that it found the right remote home interface.

This is my code:

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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