Hi,

This code below works fine in a test class run from my PC.

However when I put it in a WebStart downloaded client, the app thows an InvalidClassException.

env= new Hashtable<String, String> ();

env.put (Context.INITIAL_CONTEXT_FACTORY,
 "org.jnp.interfaces.NamingContextFactory");

env.put (Context.PROVIDER_URL,
 "jnp://localhost:1099");

env.put (Context.URL_PKG_PREFIXES,
 "org.jboss.naming:org.jnp.interfaces");

jndiContext = new InitialContext(env);

My app prints the following info out:

Naming Exception
 Explanation:
 Failed to retrieve Naming interface
 Root Cause:
 java.io.InvalidClassException: org.jboss.invocation.InvokerInterceptor; unable to create instance

NOTE: The downloaded app will not always have access to my JDK and JBoss lib's, so I pulled "org.jnp.interfaces.NamingContextFactory" and all the classes it calls from the local jboss server's jbossall-client.jar and re-jarred them into a resource that is downloaded with the jnlp file.

The API says the exception can have only one of three causes:

- The serial version of the class does not match that of the class descriptor read from the stream
- The class contains unknown datatypes
- The class does not have an accessible no-arg constructor

Since these are all tested classes, I assume the only problem can be the version, but I am lost on how to figure this out.

Since the code works fine from a test class I run directly on my PC, I guess it finds a different version of "org.jboss.invocation.InvokerInterceptor" than I packaged with the jnlp resouce.

But I don't have a clue how to figure out which one to package.

Can anyone give me a hint?