How do you properly exit from a JNDI enabled client?

Question

After starting a JNDI provider:

start rmiregistry

I used the following test application to play with the JNDI API:

public static void main(String[] args) throws NamingException, MalformedURLException { 
        Hashtable<String, String> env = new Hashtable<String, String>();
        env.put(Context.INITIAL_CONTEXT_FACTORY,
                "com.sun.jndi.rmi.registry.RegistryContextFactory");
        env.put(Context.PROVIDER_URL, "rmi://localhost:1099");

        InitialContext jndiContext = new InitialContext(env);
        String objName = "myObj";
        Reference obj = new Reference("Object");
        jndiContext.bind(objName, obj);
        System.out.println("Object from registry: "
                + jndiContext.lookup(objName));
        jndiContext.unbind(objName);
        jndiContext.close();
    }

The problem is that the program never exits. The culprit is the "RMI Reaper" non-daemon thread which prevents this JNDI client application from properly shutting down.

Does anyone know how to make this program exit without using System.exit()?