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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-9276" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-f389279c-7ba0-4b65-ab9c-17d903219201" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-9276" style="color: #3b73af; text-decoration: none">HHH-9276</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-9276" style="color: #3b73af; text-decoration: none">Cannot add query parameter of proxied types</a> </span>
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Issue Type:
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Unassigned
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Components:
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entity-manager
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Created:
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07/Jul/2014 11:10 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="ibaca" id="email_ibaca" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=ibaca" style="color:#6c797f;; color: #3b73af; text-decoration: none">Ignacio Baca Moreno-Torres</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"><b>The problem</b><br /> If you add an @Proxy(proxyClass = ?) to any entity, this entity cannot be used as a parameter in a EntityManager query.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This interface Person and class PersonEntity reproduces the problem.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"><b>Person.java</b></p>
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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">public</span> <span class="code-keyword" style="color: #000091">interface</span> Person {
<span class="code-object" style="color: #910091">Integer</span> getId(); void setId(<span class="code-object" style="color: #910091">Integer</span> id);
<span class="code-object" style="color: #910091">String</span> getName(); void setName(<span class="code-object" style="color: #910091">String</span> name);
Person getFriend(); void setFriend(Person person);
}
</pre>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"><b>PersonEntity.java</b></p>
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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">import</span> javax.persistence.*;
<span class="code-keyword" style="color: #000091">import</span> org.hibernate.annotations.Proxy;
@Entity
@Proxy(proxyClass = Person.class)
<span class="code-keyword" style="color: #000091">public</span> class PersonEntity <span class="code-keyword" style="color: #000091">implements</span> Person {
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">static</span> void main(<span class="code-object" style="color: #910091">String</span>[] args) {
<span class="code-keyword" style="color: #000091">final</span> EntityManagerFactory factory = Persistence.createEntityManagerFactory(<span class="code-quote" style="color: #009100">"persistence"</span>);
<span class="code-keyword" style="color: #000091">final</span> EntityManager entityManager = factory.createEntityManager();
<span class="code-object" style="color: #910091">System</span>.out.println(entityManager.createQuery(<span class="code-quote" style="color: #009100">"from PersonEntity where friend = :friend"</span>, PersonEntity.class)
.setParameter(<span class="code-quote" style="color: #009100">"friend"</span>, entityManager.getReference(PersonEntity.class, 1)).getResultList());
}
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">Integer</span> id; <span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">String</span> name; <span class="code-keyword" style="color: #000091">private</span> Person friend;
@Override @Id
@GeneratedValue
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Integer</span> getId() { <span class="code-keyword" style="color: #000091">return</span> id; }
@Override <span class="code-keyword" style="color: #000091">public</span> void setId(<span class="code-object" style="color: #910091">Integer</span> id) { <span class="code-keyword" style="color: #000091">this</span>.id = id; }
@Override @Basic
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> getName() { <span class="code-keyword" style="color: #000091">return</span> name; }
@Override <span class="code-keyword" style="color: #000091">public</span> void setName(<span class="code-object" style="color: #910091">String</span> name) { <span class="code-keyword" style="color: #000091">this</span>.name = name; }
@Override @OneToOne(targetEntity = PersonEntity.class) <span class="code-keyword" style="color: #000091">public</span> Person getFriend() { <span class="code-keyword" style="color: #000091">return</span> <span class="code-keyword" style="color: #000091">this</span>.friend; }
@Override <span class="code-keyword" style="color: #000091">public</span> void setFriend(Person friend) { <span class="code-keyword" style="color: #000091">this</span>.friend = friend; }
}
</pre>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"><b>Possible solution</b><br /> Apply this change</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
<div class="codeContent panelContent" style="padding: 9px 12px">
<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> <span class="code-keyword" style="color: #000091">static</span> <span class="code-object" style="color: #910091">boolean</span> isValidBindValue(<span class="code-object" style="color: #910091">Class</span> expectedType, <span class="code-object" style="color: #910091">Object</span> value, TemporalType temporalType) {
-<span class="code-keyword" style="color: #000091">if</span> ( expectedType.isInstance( value ) ) {
+<span class="code-keyword" style="color: #000091">if</span> ( expectedType.isAssignableFrom( HibernateProxyHelper.getClassWithoutInitializingProxy(value) ) ) {
<span class="code-keyword" style="color: #000091">return</span> <span class="code-keyword" style="color: #000091">true</span>;
}
</pre>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">4.3: hibernate-entitymanager/src/main/java/org/hibernate/jpa/spi/BaseQueryImpl.java<br /> 4.2: hibernate-entitymanager/src/main/java/org/hibernate/ejb/AbstractQueryImpl.java</p>
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