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From "Matthew Pitts (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ARIES-1497) jpa-support XAJpaTemplate does not properly handle RollbackException
Date Mon, 15 Feb 2016 16:50:18 GMT
Matthew Pitts created ARIES-1497:
------------------------------------

             Summary: jpa-support XAJpaTemplate does not properly handle RollbackException
                 Key: ARIES-1497
                 URL: https://issues.apache.org/jira/browse/ARIES-1497
             Project: Aries
          Issue Type: Bug
          Components: JPA
    Affects Versions: jpa-2.3.0
            Reporter: Matthew Pitts


There are a couple of problems addressed here: 

#. No checked exceptions ever reach the safeRollback method in XAJpaTemplate. This is due
to the fact that safeFinish catches and wraps via wrapThrowable. This means that the shouldRollback
logic will always (or almost always) be true, because no checked exceptions have the opportunity
to bubble-up as-is from safeFinish.

#. Because of the above problem, javax.transaction.RollbackException events are not properly
handled since they result in another rollback attempt.

The proposed fix (and patch) is to allow RollbackExceptions to bubble up from safeFinish,
thus allowing for their direct passing to safeRollback. Basically, because this is a checked
exception, shouldRollback will be false during safeRollback handling, thus preventing a rollback
attempt while this exception is propagating. Additionally, because safeRollback calls safeFinish
which ultimately calls the corresponding TransactionAttribute.finish method, then the logic
therein to issue a rollback in the event of STATUS_MARKED_ROLLBACK will be executed when this
exception is propagating. Thus, no other special handling is really required.

Please validate and correct my statement of the problem and my fix.



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