Kudos on your new book. Just read the sample chapter and I just love the colors used in the book. Its very readable and eyes-friendly. Good job!
Coming to questions, I have an age old question to you on UI framework. For a greenfield transactional JEE/Spring based system, what UI framework would you personally recommend. Our team of developers have good Struts knowledge and limited Spring MVC, JSF knowledge but training them (i.e getting them equipped) is not an issue.