This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I've just managed to set up indexed properties and server-side validation in my Struts application. My bean is called AddUserBean and contains a ArrayList named userListArray with User objects (name, ...).