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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/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-12821" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-6194c98a-fb6e-45cb-8bcb-1eee9fd13001" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-12821" style="color: #3b73af; text-decoration: none">HHH-12821</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/HHH-12821" style="color: #3b73af; text-decoration: none">@ManyToMany and @JoinTable adds duplicated records in the database.</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-6194c98a-fb6e-45cb-8bcb-1eee9fd13001" 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"> 5.2.17 </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"> 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: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 18/Jul/2018 03:02 AM </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-static-major-506ab2da-c32c-467f-8568-81b030372f3a" height="16" width="16" border="0" align="absmiddle" alt="Major" style="vertical-align: text-bottom"> Major </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: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="ptahchiev" id="email_ptahchiev" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=ptahchiev" style="color:#6c797f;; color: #3b73af; text-decoration: none">Petar Tahchiev</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">The following setup:</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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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">
@Entity
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">class </span>Parent {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = <span class="code-quote" style="color: #009100">"seq"</span>)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">int</span> id;
@ManyToMany(fetch = FetchType.LAZY, targetEntity = Child.class, cascade = CascadeType.MERGE)
@JoinTable(name = <span class="code-quote" style="color: #009100">"parent_child"</span>, joinColumns = @JoinColumn(name = <span class="code-quote" style="color: #009100">"parent_id"</span>), inverseJoinColumns = @JoinColumn(name = <span class="code-quote" style="color: #009100">"child_id"</span>))
<span class="code-keyword" style="color: #000091">private</span> List<Child> children;
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">int</span> getId() {
<span class="code-keyword" style="color: #000091">return</span> id;
}
<span class="code-keyword" style="color: #000091">public</span> void setId(<span class="code-object" style="color: #910091">int</span> id) {
<span class="code-keyword" style="color: #000091">this</span>.id = id;
}
<span class="code-keyword" style="color: #000091">public</span> List<Child> getChildren() {
<span class="code-keyword" style="color: #000091">return</span> children;
}
<span class="code-keyword" style="color: #000091">public</span> void setChildren(List<Child> children) {
<span class="code-keyword" style="color: #000091">this</span>.children = children;
}
}
</pre>
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<div class="code panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
<div class="codeContent panelContent" style="padding: 9px 12px">
<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Entity
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">class </span>Child {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = <span class="code-quote" style="color: #009100">"seq"</span>)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">int</span> id;
@ManyToMany(fetch = FetchType.LAZY, targetEntity = Parent.class, cascade = CascadeType.MERGE)
@JoinTable(name = <span class="code-quote" style="color: #009100">"parent_child"</span>, joinColumns = @JoinColumn(name = <span class="code-quote" style="color: #009100">"child_id"</span>), inverseJoinColumns = @JoinColumn(name = <span class="code-quote" style="color: #009100">"parent_id"</span>))
<span class="code-keyword" style="color: #000091">private</span> List<Parent> parents;
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">int</span> getId() {
<span class="code-keyword" style="color: #000091">return</span> id;
}
<span class="code-keyword" style="color: #000091">public</span> void setId(<span class="code-object" style="color: #910091">int</span> id) {
<span class="code-keyword" style="color: #000091">this</span>.id = id;
}
<span class="code-keyword" style="color: #000091">public</span> List<Parent> getParents() {
<span class="code-keyword" style="color: #000091">return</span> parents;
}
<span class="code-keyword" style="color: #000091">public</span> void setParents(List<Parent> parents) {
<span class="code-keyword" style="color: #000091">this</span>.parents = parents;
}
}
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">and this test-case:</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
<div class="codeContent panelContent" style="padding: 9px 12px">
<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Test
<span class="code-keyword" style="color: #000091">public</span> void hhh123Test() <span class="code-keyword" style="color: #000091">throws</span> Exception {
<span class="code-comment" style="color: #808080">// persist parent entity in a transaction
</span>
EntityManager em = entityManagerFactory.createEntityManager();
em.getTransaction().begin();
Parent parent = <span class="code-keyword" style="color: #000091">new</span> Parent();
em.persist(parent);
<span class="code-comment" style="color: #808080">//em.flush();
</span> <span class="code-object" style="color: #910091">int</span> id = parent.getId();
em.getTransaction().commit();
em.close();
<span class="code-comment" style="color: #808080">// relate and persist child entity in a <span class="code-keyword" style="color: #000091; color: #808080">new</span> transaction
</span>
em = entityManagerFactory.createEntityManager();
em.getTransaction().begin();
parent = em.find(Parent.class, id);
<span class="code-comment" style="color: #808080">// *: parent.getChildren().size();
</span> assertEquals(0, parent.getChildren().size());
Child child = <span class="code-keyword" style="color: #000091">new</span> Child();
child.setParents(Arrays.asList(parent));
parent.setChildren(Arrays.asList(child));
em.persist(child);
em.persist(parent);
<span class="code-comment" style="color: #808080">//em.flush();
</span>
assertEquals(1, parent.getChildren().size()); <span class="code-comment" style="color: #808080">// -> [Child@36bf7916, Child@36bf7916]
</span>
em.getTransaction().commit();
em.close();
em = entityManagerFactory.createEntityManager();
em.getTransaction().begin();
Parent p = em.find(Parent.class, id);
<span class="code-comment" style="color: #808080">// FAILURE: 1 expected, but 2 childs in List
</span> Assert.assertEquals(1, p.getChildren().size());
em.getTransaction().commit();
em.close();
}
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Here's the repository with reproduceable test-case: <a href="https://github.com/ptahchiev/hibernate-test-case-templates/tree/HHH-6776" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://github.com/ptahchiev/hibernate-test-case-templates/tree/HHH-6776</a></p> </td>
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{
"@context": "http://schema.org",
"@type": "EmailMessage",
"description": "View Issue",
"potentialAction": {
"@type": "ViewAction",
"target": "https://hibernate.atlassian.net/browse/HHH-12821?inbox=true&",
"name": "View Issue"
},
"publisher": {
"@type": "Organization",
"name": "Atlassian",
"url": "https://www.atlassian.com"
}
}
</script>
<table id="actions-pattern" cellspacing="0" cellpadding="0" border="0" width="100%" style="border-collapse: collapse; mso-table-lspace: 0; mso-table-rspace: 0; font-family: Arial, sans-serif; font-size: 14px; line-height: 20px; mso-line-height-rule: exactly; mso-text-raise: 1px">
<tbody>
<tr>
<td id="actions-pattern-container" valign="middle" style="padding: 0; border-collapse: collapse; padding: 10px 0 10px 24px; vertical-align: middle; padding-left: 0">
<table align="left" style="border-collapse: collapse; mso-table-lspace: 0; mso-table-rspace: 0">
<tbody>
<tr>
<td class="actions-pattern-action-icon-container" style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; line-height: 20px; mso-line-height-rule: exactly; mso-text-raise: 0; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-12821#add-comment" target="_blank" title="Add Comment" style="color: #3b73af; text-decoration: none"> <img class="actions-pattern-action-icon-image" src="cid:jira-generated-image-static-comment-icon-bd8a7e4f-fb84-4e13-b334-5ed311097f50" alt="Add Comment" title="Add Comment" height="16" width="16" border="0" style="vertical-align: middle"> </a> </td>
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<td id="footer-pattern" style="padding: 0; border-collapse: collapse; padding: 12px 20px">
<table id="footer-pattern-container" cellspacing="0" cellpadding="0" border="0" style="border-collapse: collapse; mso-table-lspace: 0; mso-table-rspace: 0">
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<td id="footer-pattern-mobile-separated-links" class="mobile-resize-text" width="100%" colspan="2" style="padding: 0; border-collapse: collapse; color: #999999; font-size: 12px; line-height: 18px; font-family: Arial, sans-serif; mso-line-height-rule: exactly; mso-text-raise: 2px"> Get Jira notifications on your phone! Download the Jira Cloud app for <a href="https://play.google.com/store/apps/details?id=com.atlassian.android.jira.core&referrer=utm_source%3DNotificationLink%26utm_medium%3DEmail" style="color: #3b73af; text-decoration: none">Android</a> or <a href="https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=EmailNotificationLink&mt=8" style="color: #3b73af; text-decoration: none">iOS</a>
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<td id="footer-pattern-text" class="mobile-resize-text" width="100%" style="padding: 0; border-collapse: collapse; color: #999999; font-size: 12px; line-height: 18px; font-family: Arial, sans-serif; mso-line-height-rule: exactly; mso-text-raise: 2px"> This message was sent by Atlassian Jira <span id="footer-build-information">(v1001.0.0-SNAPSHOT#100090-<span title="3f3c44d0530b6e6a17976338112a03e07ecf500c" data-commit-id="3f3c44d0530b6e6a17976338112a03e07ecf500c}">sha1:3f3c44d</span>)</span> </td>
<td id="footer-pattern-logo-desktop-container" valign="top" style="padding: 0; border-collapse: collapse; padding-left: 20px; vertical-align: top">
<table style="border-collapse: collapse; mso-table-lspace: 0; mso-table-rspace: 0">
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<td id="footer-pattern-logo-desktop-padding" style="padding: 0; border-collapse: collapse; padding-top: 3px; opacity: 0.150"> <img id="footer-pattern-logo-desktop" src="cid:jira-generated-image-static-footer-desktop-logo-f2b6cbaf-78f6-401e-bdda-f4de30ea216e" alt="Atlassian logo" title="Atlassian logo" width="192" height="24" class="image_fix"> </td>
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