Hi, sorry for my english, I speak spanish. I recently migrate an application from ejb 2.x to ejb3 (approx. 300 entities), Im using WebSphere 7.0.0.9. After 10 hours of work, the system crash with an OutOfMemoryError. Analyzing the coredump, I see a lot of instance of the org.apache.openjpa.jdbc.meta.ClassMapping class (please see the attached a screenshot). I believe that the culprit is the list of ValueListeners of the Value class, but I'm not sure, and I dont know how to fix this problem. Thanks