Michael Wohlfart [http://community.jboss.org/people/mwohlf] replied to the 
discussion

"jBpm4.4 +spring test error(Could not synchronize database state with session)?"

To view the discussion, visit: http://community.jboss.org/message/555471#555471

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I have a similar issue and I think there is a race condition between the 
DispatcherThread that handles the execution of async Messages/Jobs and the 
main-Thread. Both alter data in the JBPM4_JOB table, I think this is what is 
going on:

1. main-Thread is running along, minding his own business and creates a 
hibernate-Session
2. DispatcherThread wakes up and also creates a hibernate-Session accessing 
data in the JBPM4_JOB table
3. DispatcherThread did its work and removes the Job data from the JBPM4_JOB 
table
4. main-Thread ends an execution and deletes the execution related data from 
the JBPM4_JOB table,
since the same data have been altered by different session there is an 
exception at this point

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