[jboss-jira] [JBoss JIRA] Commented: (JBAS-4238) javax.transaction.RollbackException root cause

Tue Apr 3 06:27:58 EDT 2007

    [ http://jira.jboss.com/jira/browse/JBAS-4238?page=comments#action_12358183 ] 

Jonathan Halliday commented on JBAS-4238:
-----------------------------------------

Without a test case I can't be sure, but I suspect this is occuring in situations where one or more Synchronizations registered with the transaction is failing during beforeCompletion(). Since processing must continue in order to resolve the transaction, we don't throw the exception all the way back to the user at that point of failure. Instead we continue to process the transaction through to a resolution, then throw a RollbackException. The internal architecture makes it difficult to store the original exception and attach it to this new RollbackException at a later time. Hence no root cause is provided.

That said, it is possible to obtain some information on the original failure. By enabling WARN level logging for the com.arjuna.ats.arjuna.coordinator package, you should see a warning when the beforeCompletion fails. "TwoPhaseCoordinator.beforeCompletion - failed" I've enhanced this reporting in the latest build, so that it should also log the exception itself.

> javax.transaction.RollbackException root cause
> ----------------------------------------------
>
>                 Key: JBAS-4238
>                 URL: http://jira.jboss.com/jira/browse/JBAS-4238
>             Project: JBoss Application Server
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: JB5-Transaction Manager
>    Affects Versions: JBossAS-4.2.0.CR1
>         Environment: Windows XP, Java 6, JBoss 4.2.0.CR1
>            Reporter: Flavius Burca
>         Assigned To: Jonathan Halliday
>            Priority: Critical
>             Fix For: JBossAS-4.2.0.GA
>
>
> On transaction commit, if the commit failes then a javax.transaction.RollbackException is thrown. This exception does not contain a root cause, so one cannot determine the cause of the failure.

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