2.9 The Semantics of Object Methods Declared final

The following methods are declared final by the Object class and cannot be overridden:

• getClass
• notify
• notifyAll
• wait

The default implementation for getClass is appropriate for all Java objects, local or remote; the method needs no special implementation for remote objects. When used on a remote object, the getClass method reports the exact type of the generated stub object. Note that this type reflects only the remote interfaces implemented by the object, not its local interfaces.

The wait and notify methods of Object deal with waiting and notification in the context of the Java language's threading model. While use of these methods for remote objects does not break the Java threading model, these methods do not have the same semantics as they do for local Java objects. Specifically, using these methods operates on the client's local reference to the remote object (the stub), not the actual object at the remote site.