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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://issues.jboss.org/browse/WELD" style="color: #3b73af; text-decoration: none">Weld</a> / <a href="https://issues.jboss.org/browse/WELD-2444" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-6aa1e041-f2ce-4ae8-8efa-db0e5f2b86b2" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://issues.jboss.org/browse/WELD-2444" style="color: #3b73af; text-decoration: none">WELD-2444</a> </td>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://issues.jboss.org/browse/WELD-2444" style="color: #3b73af; text-decoration: none">Transactional observer cannot be fired from another transaction synchronisation</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Issue Type:</th>
<td class="has-icon" style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-avatar-6aa1e041-f2ce-4ae8-8efa-db0e5f2b86b2" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"> Bug </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Affects Versions:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 2.3.5.Final </td>
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Unassigned </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Created:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 25/Dec/17 11:14 AM </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Environment:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0; margin-top: 0">WildFly Full 10.1.0.Final (WildFly Core 2.2.0.Final)</p> </td>
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<td class="has-icon" style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-minor-5e58f9f1-98d4-4002-bff5-ad0f0c3f9dcd" height="16" width="16" border="0" align="absmiddle" alt="Minor" style="vertical-align: text-bottom"> Minor </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Reporter:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="jwgmeligmeyling" id="email_jwgmeligmeyling" href="https://issues.jboss.org/secure/ViewProfile.jspa?name=jwgmeligmeyling" style="color:#3b73af;; color: #3b73af; text-decoration: none">Jan-Willem Gmelig Meyling</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0; margin-top: 0">When firing an CDI event from a running transaction synchronisation, the TransactionalObserverNotifier fails to defer the notification, because registering the TransactionSynchronizedRunnable fails with an "ARJUNA016082: Synchronizations are not allowed".</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">In my case this for example happens when I fire the event from a JPA Lifecycle listener, which is triggered by the flush call on the EntityManager through Hibernates JtaTransactionCoordinatorImpl bound in the JCAOrderedLastSynchronizationList.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The current behaviour has one very odd side effect: namely, the exception is swallowed in the TransactionalObserverNotifier, which then notifies a filtered set of observers, assuming that a rollback exception must have occurred. As a result, the `AFTER_FAILIRE` observers are invoked and not the `AFTER_SUCCESS`, even though the transaction commits successfully (because the IllegalStateException was caused by not being able to register the synchronisation, and not due to the fact that the transaction failed altogether).</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I think the error handling should be fixed, because it seems odd that AFTER_FAILIRE observers get invoked for a successful transaction.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Furthermore it would be nice to actually support events with transactional observers to be fired from another synchronisation. I am not entirely sure whether it is feasible to support, but I am thinking of an implementation where we just register a synchronisation by default and handle the synchronisation from there, rather than registering the synchronisation on the transaction just in time.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Some more background (a stack trace) can be found in the Stackoverflow issue: <a href="https://stackoverflow.com/questions/47953827/defer-transactionalobservernotifier-fails-with-arjuna016082-synchronizations-ar" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://stackoverflow.com/questions/47953827/defer-transactionalobservernotifier-fails-with-arjuna016082-synchronizations-ar</a></p> </td>
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