This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Tomcat does not have a cache. The cache is in your web browser. However, in the case of web services, there are some files that may get generated by the web services code, depending on what web services library you are using.
An IDE is no substitute for an Intelligent Developer.