I've just taken my OCJP 6 last Monday and I'll start to prepare for OCPJWCD 6. Until the moment I don't know nobody in Brazil that cleaned in this exame and that can me indicate some study material for it.
So, I've been reading some user testimonial's from JavaRanch and I saw that all of them used the book Head First Servlets & JSP by Kathy Sierra and Bert Bates, besides Servlet 3.0 specification and Enthuware mock exame.
Am I sure about these study are enough to prepare for OCEJWCD 6? What do you recommend?