As explained in J2EE: JAX-WS Improves JAX-RPC with Better O/X Mapping, Sun two years ago announced that JAX-WS would replace JAX-RPC as the standard Java framework for invoking Web services.
Now this 4-part series, "Web services hints and tips: JAX-RPC versus JAX-WS," compares the two:
- Part 1: Introduction
- Part 2: A look at the differences in data mapping
- Part 3: The service endpoint interface
- Part 4: The dynamic invocation interfaces
The authors are Russell Butek, a member of the same department I'm in and formerly a member of the Web Services Development team for WebSphere Application Server, which Nick Gallardo is a member of.