The book sells itself with an ambitious goals but makes so many mistakes that I doubt it would have been useful even at the time of the release, most of them related with being too vague or just making a casual remark about a technology or process, and certainly being guilty of trying to cover up too much without making a stellar, or even satisfying covering a single topic. You can pick up few things about Agile methods, a bit about Hibernate, Spring and unit testing but in the end you just have a reference of a lot of "great tools" with negligible knowledge about them
It's certainly fun to see the reactions to Eclipse IDE in 2006, but even that feels like a mistake because it covers more material than working with Hibernate, pretty much describing how awesome are its features but nothing else
A good lesson of what not to do if you want to write a similar thing I guess, I learned a bit despite the age as these technologies are still used, but I felt the book was a disaster