[jboss-user] [jBPM] - threadsafety of workitems

[Jürgen Schmied]

Jürgen Schmied [http://community.jboss.org/people/jschmied] created the discussion

"threadsafety of workitems"

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      Hi!
 
 I have a process with two workitems in parallel.
 
 In executeWorkItem() I start a callable and execute completeWorkItem from a worker thread. When the flow runns for a while it blocks randomly. It seems the completeWorkItem() is not threadsafe and if different threads call it concurrently sometimes the acknowledging of the workitem gets lost.
 
 If I warp the ksession in a object and synchronize all calls it runns fine.
 
 I is told to do it this way in chapter  5.8.7.1. of the manual. Isn't the completeWorkItem call not supposed to be threadsafe?
 
 Thanks!
 
 juergen
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