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.
Access to instance data in servlets needed to be synchonized (whether it's an inner class or a simple primitive). Local (a.k.a. automatic) variables within functions are okay though. So, you might want to try creating your info within the doGet method, or wherever you're doing it.