This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
Your Method calling sequence is correct. why would you like to know the default implementation of the service method in HttpServlet? Thats why Sun recommends you to extends the class and avoid any errors or mistakes in writing service method yourself.