Caused by: java.lang.RuntimeException: Unable to commit transaction
        at org.drools.persistence.jta.JtaTransactionManager.commit(JtaTransactionManager.java:239) ~[drools-persistence-jpa-6.3.0.Final.jar:6.3.0.Final]
        at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:185) ~[drools-persistence-jpa-6.3.0.Final.jar:6.3.0.Final]
        ... 73 common frames omitted
Caused by: bitronix.tm.internal.BitronixRollbackException: RuntimeException thrown during beforeCompletion cycle caused transaction rollback
        at bitronix.tm.BitronixTransaction.commit(BitronixTransaction.java:241) ~[btm-2.1.4.jar:2.1.4]
        at bitronix.tm.BitronixTransactionManager.commit(BitronixTransactionManager.java:143) ~[btm-2.1.4.jar:2.1.4]
        at org.drools.persistence.jta.JtaTransactionManager.commit(JtaTransactionManager.java:236) ~[drools-persistence-jpa-6.3.0.Final.jar:6.3.0.Final]
        ... 74 common frames omitted
Caused by: javax.persistence.OptimisticLockException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.drools.persistence.info.SessionInfo#37]
        at org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1416) ~[hibernate-entitymanager-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1329) ~[hibernate-entitymanager-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1310) ~[hibernate-entitymanager-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1316) ~[hibernate-entitymanager-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:999) ~[hibernate-entitymanager-4.2.21.Final.jar:4.2.21.Final]
        at org.drools.persistence.TriggerUpdateTransactionSynchronization.beforeCompletion(TriggerUpdateTransactionSynchronization.java:72) ~[drools-persistence-jpa-6.3.0.Final.jar:6.3.0.Final]
        at org.drools.persistence.jta.JtaTransactionSynchronizationAdapter.beforeCompletion(JtaTransactionSynchronizationAdapter.java:54) ~[drools-persistence-jpa-6.3.0.Final.jar:6.3.0.Final]
        at bitronix.tm.BitronixTransaction.fireBeforeCompletionEvent(BitronixTransaction.java:532) ~[btm-2.1.4.jar:2.1.4]
        at bitronix.tm.BitronixTransaction.commit(BitronixTransaction.java:235) ~[btm-2.1.4.jar:2.1.4]
        ... 76 common frames omitted
Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.drools.persistence.info.SessionInfo#37]
        at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:2521) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3240) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:3138) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3468) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:140) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:395) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:387) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:304) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:349) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1195) ~[hibernate-core-4.2.21.Final.jar:4.2.21.Final]
        at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:996) ~[hibernate-entitymanager-4.2.21.Final.jar:4.2.21.Final]
        ... 80 common frames omitted