Congratulations to Scott Davis and Tom Marrs for shipping JBoss at Work. Scott gave me a copy at the Reston NFJS show last weekend, which was fortunate timing since my flight home was delayed and I was stuck in Dulles's delightful Terminal G.
I am not currently using the full JBoss stack on a project, but I was curious about JBoss's JAAS support, and was pleased with the proportion of the book devoted to the topic. The tutorial in the appendix reminded me of something I need to add to my JAAS talk: coverage of the command line JAAS debugging flags.
Addendum: Since reading the book I have poked around in the JBoss codebase a bit. If you're doing JAAS work; it is a nice source for inspiration.