Issue

I'm calling GraphSession.deleteProcessInstance(..) similar to what is documented here: https://access.redhat.com/site/solutions/18923

I'm getting a lot of failures with the following exception:

     [java] ERROR Failed to delete Process Instance 889
     [java] org.jbpm.persistence.JbpmPersistenceException: could not delete ProcessInstance(889)
     [java]     at org.jbpm.db.GraphSession.deleteProcessInstance(GraphSession.java:432)
     [java]     at org.jbpm.db.GraphSession.deleteProcessInstance(GraphSession.java:400)
...
     [java] Caused by: org.hibernate.WrongClassException: Object with id: 785 was not of the specified subclass: org.jbpm.logging.log.ProcessLog (Discriminator: X)

The exception only appears to occur when attempting to delete 'X' (org.jbpm.graph.log.ProcessInstanceEndLog) and 'D' (org.jbpm.context.log.VariableDeleteLog) class logs.