Issue

• While migrating to BPMS 6.1 from BPMS 6.0.3 the following exception is encountered.

...
2015-05-12 10:03:05,250 |  ProcessExecutionService | startProcess | WARN | xxxx | Could not commit session
org.jbpm.workflow.instance.WorkflowRuntimeException: [xxx] -- Unable to find transaction: Cannot create resource instance
        at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:168) ~[jbpm-flow-6.1.0.Final.jar:6.1.0.Final]
        at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:354) ~[jbpm-flow-6.1.0.Final.jar:6.1.0.Final]
        at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:369) ~[jbpm-flow-6.1.0.Final.jar:6.1.0.Final]
        at org.jbpm.workflow.instance.node.SplitInstance.executeStrategy(SplitInstance.java:117) ~[jbpm-flow-6.1.0.Final.jar:6.1.0.Final]
        at org.jbpm.workflow.instance.node.SplitInstance.internalTrigger(SplitInstance.java:63) ~[jbpm-flow-6.1.0.Final.jar:6.1.0.Final]
        at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:162) ~[jbpm-flow-6.1.0.Final.jar:6.1.0.Final]
        at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:354) ~[jbpm-flow-6.1.0.Final.jar:6.1.0.Final]
        ...
Caused by: java.lang.IllegalStateException: Unable to find transaction: Cannot create resource instance
        at org.drools.persistence.jta.JtaTransactionManager.findUserTransaction(JtaTransactionManager.java:139) ~[drools-persistence-jpa-6.1.0.Final.jar:6.1.0.Final]
        at org.drools.persistence.jta.JtaTransactionManager.<init>(JtaTransactionManager.java:79) ~[drools-persistence-jpa-6.1.0.Final.jar:6.1.0.Final]
        ...
Caused by: javax.naming.NamingException: Cannot create resource instance
        at org.apache.naming.factory.TransactionFactory.getObjectInstance(TransactionFactory.java:116) ~[catalina.jar:7.0.23]
        ...

It looks like the process execution throws the exception when it is trying to go for the timer.

• Could this issue be related to the same problem as discussed in this thread? How to fix this issue?
  jBPM 6.1.0 and spring local transaction issue