"Unable to commit transaction" error when creating managed repository in "business-central"

Solution In Progress - Updated -

Issue

In BRMS / BPM Suite 6.3, when trying to follow document page 7.5. MANAGING ASSETS to create a managed repository, error happened Repository configuration process instantiation failed Unable to commit transaction and see following errors in server.log:

16:53:31,335 WARN  [org.drools.persistence.jta.JtaTransactionManager] (http-127.0.0.1:8180-6) Unable to commit transaction: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.
    at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1201)
......
Caused by: java.lang.NullPointerException
    at org.jbpm.marshalling.impl.JBPMMessages$Variable$Builder.setName(JBPMMessages.java:18498) [jbpm-flow-6.4.0.Final-redhat-3.jar:6.4.0.Final-redhat-3]
    at org.jbpm.marshalling.impl.ProtobufProcessMarshaller.marshallVariable(ProtobufProcessMarshaller.java:261) [jbpm-flow-6.4.0.Final-redhat-3.jar:6.4.0.Final-redhat-3]
......

The error window looks like below:

Environment

  • Red Hat JBoss BRMS
    • 6.3
  • Red Hat JBoss BPM Suite
    • 6.3

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