This week's book giveaway is in the Performance forum. We're giving away four copies of The Java Performance Companion and have Charlie Hunt, Monica Beckwith, Poonam Parhar, & Bengt Rutisson on-line! See this thread for details.
I have a web application where at times, users will "see each other's sessions". The only thing that seems possible is that the instances of actions I have defined are being shared by multiple users, even though I have given each scope="prototype". Here is a sample action: