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<p style="margin: 10px 0 0 0">Bottom line is that bootstrapping an <tt>EntityManagerFactory</tt> prior to bootstrapping a seemingly unrelated <tt>SessionFactory</tt> influences the behavior of the latter. In particular how merges/saves are executed seem to change. </p>
<p style="margin: 10px 0 0 0">Looking at the following code:</p>
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<b>CollectionUpdateEventTest.java</b>
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
...
<span class="code-keyword" style="color: #000091">private</span> void updateCatalogsCollection(FullTextSession fullTextSession, Catalog catalog) {
<span class="code-keyword" style="color: #000091">final</span> Transaction transaction = fullTextSession.beginTransaction();
Consumer consumer = <span class="code-keyword" style="color: #000091">new</span> Consumer();
consumer.setName( <span class="code-quote" style="color: #009100">"consumer"</span> );
consumer.getCatalogs().add( catalog );
fullTextSession.persist( consumer );
catalog.getConsumers().add( consumer );
<span class="code-comment" style="color: #808080">// catalog.getCatalogItems().add( <span class="code-keyword" style="color: #000091; color: #808080">new</span> CatalogItem() );
</span> fullTextSession.merge( catalog );
transaction.commit();
}
...
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<p style="margin: 10px 0 0 0">This is the code used in the test to update the persisted entity. Depending on the test configuration, the test then checks whether the <tt>catalogItems</tt> collection has been initialized as a side effect of the class bridge on this collection iterating over it due to the made change. Interestingly, <tt>updateCatalogsCollection</tt> does not make a change to the catalog items. It turns out that in the pure <tt>SessionFactory</tt> case the change to consumers will also trigger a change event for the catalog items and hence the re-indexing of the collection and its initialization. In the case where an <tt>EntityManagerFactory</tt> is bootstrapped first, the behaviour changes and the merge does not trigger a change event for <tt>catalogItems</tt>. So the collection stays indeed uninitialized. A way to make the test pass in both scenarios is to really change the <tt>catalogItems</tt> (see commented out line). This triggers the re-indexing for sure. In fact I think it is a good idea to change the test in this manner anyway, but it still leaves the question how bootstrapping <tt>EntityManagerFactory</tt> can have such a side effect.</p>
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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/HSEARCH" style="color: #3b73af; text-decoration: none">Hibernate Search</a> / <a href="https://hibernate.atlassian.net/browse/HSEARCH-931" style="color: #3b73af; text-decoration: none"><img src="https://hibernate.atlassian.net/images/icons/issuetypes/bug.png" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HSEARCH-931" style="color: #3b73af; text-decoration: none">HSEARCH-931</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/HSEARCH-931" style="color: #3b73af; text-decoration: none">CollectionUpdateEventTest fails from the command line when run after a unit test which extends JPATestcase</a> </span>
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The first problem was that we could not reproduce the problem and that was due to the fact that the execution order of tests varies depending on the OS. The surefire plugin has the _runOrder_ property to define the order. The default is _filesystem_ which has different results on Mac vs Linux. On Mac the tests are run in alphabetical order on Linux in "ra...
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