It took me quite a while to get things started with 5.2 (embedded in my app deployed on JBoss 7.1.1). But now I am able to start processes (including jpa 2.0 persistence - hibernate 4).
One thing that's missing is: how can signal a specific process instance? With 4.3 I can start a process and bind it to a specific key (startProcessInstanceByKey). Later I can use a query (createProcessInstanceQuery) to find the suitable process instance and then signal it.
Is there something similar for 5.2?
BTW, is there some general migration guide? Explaning/comparing for instance some use cases for 4.3 and 5.2?