This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell 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.