Now I see what you are asking for. You want a book on web services, one that goes beyond the basics and gets into the nitty-gritty details. JBoss in Action is centered around configuring the app server, so we spend more time on working with config files than on anything else. The only reason the chapters contain simple apps is that we needed demo apps to explain the various configuration options. Unfortunately, I am unaware of a book on Java web services that goes into the detail that you are asking for.
But the offer to explain any source code or config settings in JBoss in Action that are not sufficiently explained is still open.