I review technical book manuscripts for a few different publishers, and recently had the pleasure of working on an upcoming book called JBoss Performance Tuning by Francesco Marchioni. It’s coming out in December 2010 and will be a must have addition to your bookshelf if you deploy applications on JBoss.
The book contains extensive performance/load test results giving you hard data to work with when deciding which changes to make in your environment. Some of the results were very surprising and the book has a lot of valuable data.
The author, Francesco Marchioni, also runs a popular JBoss related blog called MasterTheBoss.com. There are a ton of great articles and posts there, so check it out!