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.
I see you found your "solution", but I can't quite figure out what you were trying to do. It looks like your form has a single String property named email but now your html page is going to have multiple hidden fields with the property name email.