Failing LockTest tests:
testContendedPessimisticLock (javax.persistence.RollbackException: Transaction marked as rollbackOnly)
testQueryTimeout (java.lang.AssertionError: background test thread timed out on lock attempt)
testQueryTimeoutEMProps (java.lang.AssertionError: background test thread timed out on lock attempt)
Most likely related to follow-on locking.