Reading material

[jcvanvorst]

While I've been developing J2EE apps for quite a while, I have yet to build a WS-based one, so I've decided to write one. In this vein, can anyone recommend a few decent books on the subject? (In addition to the references listed on the Spring-WS page)

I ask here because my intuitive sense of developing web services seems to mesh with the approach of Spring-WS. I have been reading through the airline and echo samples, but feel there are a few too many moving parts to get a complete grasp of developing a full app (wsdl, security, binding, faults, etc.).

Any guidance would be appreciated.