This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
If JSP can do anything that a Servlet can do, why not use a single JSP (e.g index.jsp) as the controller to do everything in pretty much the same way as a servlet would (use the RequestDispatcher, access beans and so on)? Our index.jsp would not need to display anything, so display and processing could be separated sufficiently, could it not?