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.
This makes sense for Action classes since Struts instantiates a single instance and reuses that same instance for multiple users. Not sure about the forms. If you have your forms configured for session scope (the default) then there will be a reference to them in the session so they will not be garbage collected.