This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
I don't think what happens with the servlet source and class files that are created while translating a JSP is specified anywhere - it's up to the servlet engine how to do this. Tomcat stores those in the "work" directory inside of its installation directory.