[jbossts-issues] [JBoss JIRA] Commented: (JBTM-365) addSynchronization calls during beforeCompletion are problematic

[Steven Hawkins (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBTM-365?page=comments#action_12413247 ] 
            
Steven Hawkins commented on JBTM-365:
-------------------------------------

The defect is that normal commit is failing due to an ill-timed call to addSynchronization.  Is there a reason why we as a client would need explicit synchronization to calls to addSynchronization?  Our integration of JBossTS does have separate threads calling addSynchronization and that may actually be committing.  However isn't this a general concurrency problem since beforeCompletion may also be initiated asynchronously wrt addSynchronization during a timeout.

> addSynchronization calls during beforeCompletion are problematic
> ----------------------------------------------------------------
>
>                 Key: JBTM-365
>                 URL: http://jira.jboss.com/jira/browse/JBTM-365
>             Project: JBoss Transaction Manager
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: JTA Implementation
>    Affects Versions: 4.3.0.GA
>            Reporter: Steven Hawkins
>
> Asynch calls to com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.addSynchronization during beforeCompletion are problematic since access to _currentRecord and _synchs is unsynchronized in addSynchronization wrt beforeCompletion.  This is similar to JBTM-188.

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