Ted Pan [https://community.jboss.org/people/ted.pan] created the discussion "Re: problem with JPAKnowledgeService and LocalTaskService" To view the discussion, visit: https://community.jboss.org/message/773789#773789 -------------------------------------------------------------- hi, Just to keep this topic updated to prevent others wasting time, I would like to report my progress back here. The problem is with the persistence.xml.   When I change back to use JPA1, everything works fine. I will do more investigation to see if the problem is with JPA2 or is with my JPA2's persistence.xml Thanks Ted -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/773789#773789] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]