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<td class="page-title-pattern-first-line " style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HSEARCH?atlOrigin=eyJpIjoiMzk2NGY5YTQ1N2NlNDg1ZGIzODk2OTZkNDhkMTFiODAiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Hibernate Search</a> / <a href="https://hibernate.atlassian.net/browse/HSEARCH-3825?atlOrigin=eyJpIjoiMzk2NGY5YTQ1N2NlNDg1ZGIzODk2OTZkNDhkMTFiODAiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-9ff5ce19-1f8a-4f2f-8140-fe855e98491b" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HSEARCH-3825?atlOrigin=eyJpIjoiMzk2NGY5YTQ1N2NlNDg1ZGIzODk2OTZkNDhkMTFiODAiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">HSEARCH-3825</a> </td>
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<td style="vertical-align: top;; padding: 0; 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-3825?atlOrigin=eyJpIjoiMzk2NGY5YTQ1N2NlNDg1ZGIzODk2OTZkNDhkMTFiODAiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Purging a document from the POJO mapper will lead to NPE</a> </span> </td>
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<td class="has-icon" style="padding: 0; 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-9ff5ce19-1f8a-4f2f-8140-fe855e98491b" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"> Bug </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="yrodiere" style="color:#6c797f;; color: #3b73af; text-decoration: none" id="email_yrodiere" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A58fa1ced-171a-4c00-97e8-5d70d442cc4b"> Yoann Rodière </a> </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> backend-elasticsearch, backend-lucene, mapper-javabean, mapper-orm, mapper-pojo </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: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 04/Feb/2020 05:50 AM </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 6.0.0.Beta-backlog-high-priority </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="yrodiere" style="color:#6c797f;; color: #3b73af; text-decoration: none" id="email_yrodiere" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A58fa1ced-171a-4c00-97e8-5d70d442cc4b"> Yoann Rodière </a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0; margin-top: 0"><tt>org.hibernate.search.mapper.pojo.work.impl.PojoIndexedTypeIndexingPlan.IndexedEntityIndexingPlan#purge</tt> sets <tt>entitySupplier</tt> to <tt>null</tt>:</p>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
void purge() {
<span class="code-comment" style="color: #808080">// This is a purge: <span class="code-keyword" style="color: #000091; color: #808080">do</span> not resolve reindexing
</span> entitySupplier = <span class="code-keyword" style="color: #000091">null</span>;
shouldResolveToReindex = <span class="code-keyword" style="color: #000091">false</span>;
<span class="code-comment" style="color: #808080">// This is a purge: force deletion even <span class="code-keyword" style="color: #000091; color: #808080">if</span> it doesn't seem <span class="code-keyword" style="color: #000091; color: #808080">this</span> document was added
</span> considerAllDirty = <span class="code-keyword" style="color: #000091">false</span>;
dirtyPaths = <span class="code-keyword" style="color: #000091">null</span>;
add = <span class="code-keyword" style="color: #000091">false</span>;
delete = <span class="code-keyword" style="color: #000091">true</span>;
}
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">But then the actual execution of the purge will try to retrieve the routing key, which will involve dereferencing the <tt>entitySupplier</tt>.<br> For example <tt>org.hibernate.search.backend.lucene.work.execution.impl.LuceneIndexIndexingPlan#delete</tt>:</p>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Override
<span class="code-keyword" style="color: #000091">public</span> void delete(DocumentReferenceProvider referenceProvider) {
<span class="code-object" style="color: #910091">String</span> id = referenceProvider.getIdentifier();
<span class="code-object" style="color: #910091">String</span> routingKey = referenceProvider.getRoutingKey();
collect( id, routingKey, factory.delete( tenantId, id ) );
}
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Two problems to solve:</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">1. When the user doesn't use routing key, this should work fine and not throw an NPE.<br> 2. When the user does use routing key, we should expect users to provide the routing key to <tt>org.hibernate.search.mapper.orm.work.SearchIndexingPlan#purge(java.lang.Class<?>, java.lang.Object)</tt>/<tt>org.hibernate.search.mapper.orm.work.SearchIndexingPlan#purge(java.lang.String, java.lang.Object)</tt>. Let's just add a String parameter.</p> </td>
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