This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
First of all, there was no JAX-RPC 2.0 and there isn't one. And, it didn't become JAX-WS. JAX-WS is evolution of JAX-RPC. It has some features and provisions that JAX-RPC didn't have. I am not going to go over 'what is new in JAX-WS' but here are some new things in JAX-WS: 1. New programming model - annotation based 2. New packaging model - webservices.xml, jax-rpc mapping files are gone 3. New binding mechanism JAXB based as opposed to JAX-RPC binding 3. Support for new standards SOAP 1.2, REST, JSON binding, MTOM and more 4. Support for new features such as asynchronous invocation