how can i debug a javax.persistence.OptimisticLockException in a process/sub process?

hi all,

i got this stack when a process starts a call activity based on the same BDM object

how can I find which operation in my process/ sub process has to be fixed, based on this stack trace ?

15-Mar-2021 16:33:08.762 INFOS [Bonita-Worker-1-02] org.bonitasoft.engine.log.technical.TechnicalLoggerSLF4JImpl.log THREAD_ID=175 | HOSTNAME=bonita.home | TENANT_ID=1 | Work org.bonitasoft.engine.work.WorkDescriptor@72e44934[uuid=b83c1c6d-f105-487e-8c4f-152512f09de1,type=EXECUTE_FLOWNODE,tenantId=1,parameters={processDefinitionId=5535937739376046579, processInstanceId=4085, stateCanceling=false, stateExecuting=true, stateId=37, stateAborting=false, flowNodeInstanceId=70112},retryCount=1,executionThreshold=2021-03-15T15:33:08.758007Z,executionCount=2,registrationDate=2021-03-15T15:33:07.737312Z,abnormalExecutionDetected=false] was successfully retried after 1 tries.
15-Mar-2021 16:33:08.763 INFOS [Bonita-Worker-1-05] org.bonitasoft.engine.log.technical.TechnicalLoggerSLF4JImpl.log THREAD_ID=180 | HOSTNAME=bonita.home | TENANT_ID=1 | Process instance 4085 and its children were aborted by flownode 70134
15-Mar-2021 16:33:08.766 WARN [Bonita-Worker-1-02] com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion ARJUNA012125: TwoPhaseCoordinator.beforeCompletion - failed for SynchronizationImple< 0:ffffc0a80112:d6e4:604f245c:893c9, org.hibernate.resource.transaction.backend.jta.internal.synchronization.RegisteredSynchronization@11bd4b43 >
javax.persistence.OptimisticLockException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect) : [com.company.model.VacationAvailable#19]
at org.hibernate.internal.ExceptionConverterImpl.wrapStaleStateException(ExceptionConverterImpl.java:223)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:93)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1348)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:435)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3221)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2389)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:447)
at org.hibernate.resource.transaction.backend.jta.internal.JtaTransactionCoordinatorImpl.beforeCompletion(JtaTransactionCoordinatorImpl.java:355)
at org.hibernate.resource.transaction.backend.jta.internal.synchronization.SynchronizationCallbackCoordinatorNonTrackingImpl.beforeCompletion(SynchronizationCallbackCoordinatorNonTrackingImpl.java:47)
at org.hibernate.resource.transaction.backend.jta.internal.synchronization.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:37)
at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)
at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:360)
at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:91)
at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:162)
at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1288)
at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:126)
at org.bonitasoft.engine.transaction.JTATransactionServiceImpl.complete(JTATransactionServiceImpl.java:186)
at org.bonitasoft.engine.transaction.JTATransactionServiceImpl.executeInTransaction(JTATransactionServiceImpl.java:296)
at org.bonitasoft.engine.execution.work.TxBonitaWork.work(TxBonitaWork.java:41)
at org.bonitasoft.engine.execution.work.LockProcessInstanceWork.work(LockProcessInstanceWork.java:68)
at org.bonitasoft.engine.execution.work.failurewrapping.TxInHandleFailureWrappingWork.work(TxInHandleFailureWrappingWork.java:40)
at org.bonitasoft.engine.execution.work.failurewrapping.TxInHandleFailureWrappingWork.work(TxInHandleFailureWrappingWork.java:40)
at org.bonitasoft.engine.execution.work.failurewrapping.TxInHandleFailureWrappingWork.work(TxInHandleFailureWrappingWork.java:40)
at org.bonitasoft.engine.execution.work.InSessionBonitaWork.work(InSessionBonitaWork.java:60)
at org.bonitasoft.engine.work.BonitaThreadPoolExecutor.lambda$submit$1(BonitaThreadPoolExecutor.java:131)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect) : [com.company.model.VacationAvailable#19]
at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:2574)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3420)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:3283)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3695)
at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:149)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:604)
at org.hibernate.engine.spi.ActionQueue.lambda$executeActions$1(ActionQueue.java:478)
at java.base/java.util.LinkedHashMap.forEach(LinkedHashMap.java:684)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:475)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:348)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:40)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:108)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1344)
... 25 more