I am not sure about your configuration, but the internals of getGraphSession as
as follows:
| public GraphSession getGraphSession()
| {
| PersistenceService persistenceService = getPersistenceService();
| return (persistenceService != null ?
persistenceService.getGraphSession() : null);
| }
|
I would imagine your root cause is because getPersistenceService is returning
null.
Check to make sure you have something like the following in your jbpm
configuration file.
| <service name="persistence"
factory="org.jbpm.persistence.jta.JtaDbPersistenceServiceFactory" />
|
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