Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very good (though focuses on Sun's Java Web Server)

This is a very good book for beginner - intermediate.I like everything about this book except that it seems Jason tilts more towards Java Web Server and gives undue importance to topics specific to JWS. For example, he explains Servlet Chaining which is supported on JWS, but not on other servers (like Apache JServ). And he doesn't care to reveal that Servlet Chaining is not even a part of Servlet specifications. Sad thing is that Jason (knowingly or unknowingly) tries to make us believe that it is a good feature. When I asked around, the general feeling that I got was that Chaining is a bad practice of writing servlets. I feel Jason should have stuck to general topic of Servlet programming. If he had, I would have given this book 5 stars.Otherwise, I found this book very good. This book has already made me a pro in Java Servlet Programming.