This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
No it's NOT true - you can dispatch from a servlet to JSP, and that's what you should do following MVC. The problem with your code could be the template Next.jsp being not found in the context. Since it is very unlikely that you need to allow your users directly access Next.jsp, put it somewhere in WEB-INF directory, say, for example, as in WEB-INF/templates/next.jsp . When you forward, use the context-relative path, as in getRequestDispatcher("/WEB-INF/templates/next.jsp")