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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://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-9363" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-da495ad0-c9a5-49a4-938c-72d1215b1037" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-9363" style="color: #3b73af; text-decoration: none">HHH-9363</a>
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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://hibernate.atlassian.net/browse/HHH-9363" style="color: #3b73af; text-decoration: none">EntityManager.remove after EM.lock results in OptimisticLockException</a> </span>
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Issue Type:
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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-bug-da495ad0-c9a5-49a4-938c-72d1215b1037" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /> Bug
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Affects Versions:
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4.2.15, 4.3.6
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Assignee:
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Unassigned
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Attachments:
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locking.zip
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Components:
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core, entity-manager
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Created:
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25/Aug/2014 07:02 AM
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Priority:
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Reporter:
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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"> <a class="user-hover" rel="jeroen.benckhuijsen" id="email_jeroen.benckhuijsen" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=jeroen.benckhuijsen" style="color:#6c797f;; color: #3b73af; text-decoration: none">Jeroen Benckhuijsen</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">See the attached test case, test is: testUpdateParentAfterRemoval<br /> Also see description on: <a href="https://forum.hibernate.org/viewtopic.php?f=1&t=1035627" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://forum.hibernate.org/viewtopic.php?f=1&t=1035627</a></p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">In short: in case a perform an EM.lock() on an entity and afterwards an EM.remove(), this will always result in a OptimisticLockException (newer version <span class="error">[null]</span> of entity [<span class="error">[...]</span>] found in database.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The cause is that the lock action is not canceled when the EM.remove() is performed. The action is performed at the end of the transaction. It queries for the latest version of the affected entity (which has been removed and thus is null). Null != the actual version --> OptimisticLockException.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Project can be switched to use Eclipselink, which performs the expected behaviour correctly. </p>
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