Issue

• This issue took place when using ksession per instance strategy, where after signaling the request at particular stage it executes some nodes in the process definition, but not able to reach to the wait state node. In this kind of circumstances it throws below exception and rolled back the whole transactions. What could be the root cause behind this exception?

11:28:43,867 WARN  [com.arjuna.ats.arjuna] (http-localhost:8080-5) ARJUNA012125: TwoPhaseCoordinator.beforeCompletion - failed for SynchronizationImple< 0:ffffac130510:-2b703fdd:5563f47c:1233, org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization@1478aeec >: javax.persistence.PersistenceException: error during managed flush
        at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1505) [hibernate-entitymanager-4.1.6.Final-redhat-3.jar:4.1.6.Final-redhat-3]
        at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:109) [hibernate-core-4.1.6.Final-redhat-3.jar:4.1.6.Final-redhat-3]
        at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) [hibernate-core-4.1.6.Final-redhat-3.jar:4.1.6.Final-redhat-3]
        at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)
        at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)
        at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)
        at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:164)
        at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165)
        at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117)
        at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.endTransaction(CMTTxInterceptor.java:90) [jboss-as-ejb3-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:230) [jboss-as-ejb3-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:302) [jboss-as-ejb3-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:188) [jboss-as-ejb3-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4]
        ...
Caused by: java.lang.IllegalArgumentException: Unknown node instance type: org.jbpm.workflow.instance.node.ActionNodeInstance@135deb2b
        at org.jbpm.marshalling.impl.AbstractProtobufProcessInstanceMarshaller.writeNodeInstanceContent(AbstractProtobufProcessInstanceMarshaller.java:343) [jbpm-flow-5.3.1.BRMS.jar:5.3.1.BRMS]
        at org.jbpm.marshalling.impl.AbstractProtobufProcessInstanceMarshaller.writeNodeInstance(AbstractProtobufProcessInstanceMarshaller.java:149) [jbpm-flow-5.3.1.BRMS.jar:5.3.1.BRMS]
        at org.jbpm.marshalling.impl.AbstractProtobufProcessInstanceMarshaller.writeProcessInstance(AbstractProtobufProcessInstanceMarshaller.java:107) [jbpm-flow-5.3.1.BRMS.jar:5.3.1.BRMS]
        at org.jbpm.marshalling.impl.AbstractProtobufProcessInstanceMarshaller.writeProcessInstance(AbstractProtobufProcessInstanceMarshaller.java:70) [jbpm-flow-5.3.1.BRMS.jar:5.3.1.BRMS]
        at org.jbpm.persistence.processinstance.ProcessInstanceInfo.update(ProcessInstanceInfo.java:198) [jbpm-persistence-jpa-5.3.1.BRMS.jar:5.3.1.BRMS]
        ...
11:28:43,902 ERROR [stderr] (http-localhost:8080-5) Caused by: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.
11:28:43,902 ERROR [stderr] (http-localhost:8080-5)        at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1177)
...
11:28:43,903 ERROR [stderr] (http-localhost:8080-5) Caused by: javax.persistence.PersistenceException: error during managed flush
11:28:43,903 ERROR [stderr] (http-localhost:8080-5)        at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1505)
...
11:28:43,903 ERROR [stderr] (http-localhost:8080-5) Caused by: java.lang.IllegalArgumentException: Unknown node instance type: org.jbpm.workflow.instance.node.ActionNodeInstance@135deb2b
11:28:43,903 ERROR [stderr] (http-localhost:8080-5)        at org.jbpm.marshalling.impl.AbstractProtobufProcessInstanceMarshaller.writeNodeInstanceContent(AbstractProtobufProcessInstanceMarshaller.java:343)
...
11:28:43,904 ERROR [stderr] (http-localhost:8080-5)        at org.jbpm.persistence.processinstance.ProcessInstanceInfo.update(ProcessInstanceInfo.java:198)
...