This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
Memory limitation - read the tooldocs on command line parameters that control Java memory allocation and garbage collection strategy. Process limitation - I'm going to take a SWAG (Scientific WildAss Guess) that you mean limiting what applications are allowed to do. See the catalina.policy file in Tomcat's conf directory. Bill