【java】Naming.bindとRegistry.bindの違い

 public static Remote lookup(String name)
        throws NotBoundException,
            java.net.MalformedURLException,
            RemoteException
    {
        ParsedNamingURL parsed = parseURL(name);
        Registry registry = getRegistry(parsed);

        if (parsed.name == null)
            return registry;
        return registry.lookup(parsed.name);
    }

 public static void bind(String name, Remote obj)
        throws AlreadyBoundException,
            java.net.MalformedURLException,
            RemoteException
    {
        ParsedNamingURL parsed = parseURL(name);
        Registry registry = getRegistry(parsed);

        if (obj == null)
            throw new NullPointerException("cannot bind to null");

        registry.bind(parsed.name, obj);
    }

    private static Registry getRegistry(ParsedNamingURL parsed)
        throws RemoteException
    {
        return LocateRegistry.getRegistry(parsed.host, parsed.port);
    }