Re: What factory do I use?

I'm writing some JUnit (4.3) tests on a Java 1.5 VM. I'm trying to
add a JNDI reference for an EJB service running locally. So far, I
have

                    Hashtable<String, String> env = new Hashtable<String, String>();
                    env.put(Context.INITIAL_CONTEXT_FACTORY,
                      "the");
                    env.put("java.naming.provider.url",
                      "http://localhost:8082/apps/dor/online/interlock/hessian/");
                    Context initialContext = new InitialContext(env);

However, I'm getting a ClassNotFoundException for the class
"com.sun.enterprise.naming.SerialInitContextFactory". My question is,
does each JVM have a standard factory it uses for the initial context,
and where would I find such a class? (I just cut-and-pasted the
example from another site, so I'm not surpised it threw an exception).