NoInitialContextException error with simple EJB

Question

I am trying some of the basic EJB excercises in Mark Wutka's Using Java 2 Enterprixe Edition. The EJB is deployed using the server that comes with the Sun ej2ee SDK.
When starting the client, I get
Exception: javax.naming.NoInitialContextException: Need to specify class
name in environment or system property, or as an applet parameter, or in
an application resource file: java.naming.factory.initial
I am confused about this, as I understood that when using the j2ee server, this parameter is already defined via the j2ee.jar library. The only reference to this error I could find stated that it would occur if the j2ee.jar file is not in the classpath. Unfortunately, it is in mine, so it doesn't help.
I've included the code for the ejb, but it's just generic code I've seen in lots of tutorials.
package usingj2ee.hello;
import java.util.*;
import javax.naming.*;
import javax.rmi.*;
public class TestHello
public static void main(String[] args)
try
/** Creates a JNDI naming context for location objects */
Context context = new InitialContext();
/** Asks the context to locate an object named "HelloWorld" and expects the
object to implement the HelloWorldSessionHome interface */
HelloWorldSessionHome home = (HelloWorldSessionHome)
PortableRemoteObject.narrow(
context.lookup("HelloWorld"),
HelloWorldSessionHome.class);
/** Asks the Home interface to create a new session bean */
HelloWorldSession session = (HelloWorldSession) home.create();
System.out.println("The default greeting is: "+
session.getGreeting());
session.setGreeting("Howdy!");
System.out.println("The greeting is now: "+session.getGreeting());
/** Destroy this session */
session.remove();
/** Now create a session with a different greeting */
session = (HelloWorldSession) home.create("Guten Tag!");
System.out.println("Created a new session with a greeting of: "+
session.getGreeting());
/** Destroy this session */
session.remove();
catch (Exception exc)
exc.printStackTrace();

Answer 1

Just now, I accidentally ran the client without stating the j2ee server, and got exactly the same error message.
I'm wondring if there's any server configuration I need to do that hasn't been done.