BZ-1005436 - timerEvent firing creates extra JoinInstance on a persistent process
(cherry picked from commit 9f5a54face7e9757744bac730799b2df9cd14135)
JBPM-4116 - jBPM6 + Oracle gives ORA-02014 error
(cherry picked from commit ba7eb063d8f6328378ac14d34e9a2dd1a6f3fca9)
BZ-990068 - CCE when accessing process variable
(cherry picked from commit fe49c998f2608866711cf4f6a360c697141e2620)
JBPM-4120 - Per process Instance runtime manager caches invalid runtime engines
(cherry picked from commit f8307988c848a4b48f5addbe062f2a8490afc520)