JAX-WS 2.0, a follow-on to Java API for XML-based RPC 1.1(JAX-RPC), simplifies the task of developing web services using Java technology. JAX-WS 2.1 is a maintenance release that adds WS-Addressing capabilities to JAX-WS 2.0.

Got a question about JAX-WS 2.1? Submit your questions from February 26 through March 2 on the Ask the Experts page and get answers from three JAX-WS experts at Sun: Vivek Pandey, Jitendra Kotamraju, and Kohsuke Kawaguchi.