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/* Changing the layout to use less space for mobiles */
@media screen and (max-device-width: 480px), screen and (-webkit-min-device-pixel-ratio: 2) {
#email-body { min-width: 30em !important; }
#email-page { padding: 8px !important; }
#email-banner { padding: 8px 8px 0 8px !important; }
#email-avatar { margin: 1px 8px 8px 0 !important; padding: 0 !important; }
#email-fields { padding: 0 8px 8px 8px !important; }
#email-gutter { width: 0 !important; }
}
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<img id="email-avatar" src="https://hibernate.onjira.com/secure/useravatar?avatarId=10162" alt="" height="48" width="48" border="0" align="left" style="padding:0;margin: 0 16px 16px 0;" />
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<a class="user-hover" rel="phoenixac" id="email_phoenixac" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=phoenixac" style="color:#6c797f;">Francisco Pérez</a>
created <img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> <a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7647'>HHH-7647</a>
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<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7647'><strong>NPE when using bySimpleNaturalId() and @NaturalIdCache</strong></a>
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<strong style="font-weight:normal;color:#505050;">Issue Type:</strong>
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<img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> Bug
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<strong style="font-weight:normal;color:#505050;">Affects Versions:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
4.1.7, 4.1.6 </td>
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<strong style="font-weight:normal;color:#505050;">Assignee:</strong>
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Unassigned </td>
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<strong style="font-weight:normal;color:#505050;">Components:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
caching (L2), query-criteria </td>
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<strong style="font-weight:normal;color:#505050;">Created:</strong>
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26/Sep/12 10:57 PM
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<strong style="font-weight:normal;color:#505050;">Description:</strong>
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<p style='margin-top:0;margin-bottom:10px;'>When annotating a class with @NaturalIdCache and using bySimpleNaturalId() I get a NPE.<br/>
This is a snippet of the entity class:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeHeader panelHeader" style="border-bottom-width: 1px;"><b>Page.java</b></div><div class="codeContent panelContent">
<pre class="code-java">@Entity
@Table(name = <span class="code-quote">"Page"</span>)
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
@NaturalIdCache
<span class="code-keyword">public</span> class Page {
        
        <span class="code-keyword">private</span> <span class="code-object">long</span> id;
        <span class="code-keyword">private</span> <span class="code-object">String</span> url;
        <span class="code-keyword">private</span> <span class="code-object">String</span> name;
        <span class="code-keyword">private</span> <span class="code-object">String</span> title;
        <span class="code-keyword">private</span> <span class="code-object">String</span> image;
        <span class="code-keyword">private</span> <span class="code-object">String</span> description;
        <span class="code-keyword">private</span> Page parent;
        <span class="code-keyword">private</span> List<Page> children;
        <span class="code-keyword">private</span> <span class="code-object">boolean</span> visible;
        <span class="code-keyword">private</span> <span class="code-object">boolean</span> internal;
        <span class="code-keyword">private</span> <span class="code-object">boolean</span> file;
        <span class="code-keyword">private</span> <span class="code-object">int</span> orden;
        @Id
        @NotNull
        @Column(name = <span class="code-quote">"id"</span>)
        <span class="code-keyword">public</span> <span class="code-object">long</span> getId() {
                <span class="code-keyword">return</span> id;
        }
        <span class="code-keyword">public</span> void setId(<span class="code-object">long</span> id) {
                <span class="code-keyword">this</span>.id = id;
        }
        
        @NaturalId
        @NotNull
        @Column(name = <span class="code-quote">"name"</span>)
        <span class="code-keyword">public</span> <span class="code-object">String</span> getName() {
                <span class="code-keyword">return</span> name;
        }
        <span class="code-keyword">public</span> void setName(<span class="code-object">String</span> name) {
                <span class="code-keyword">this</span>.name = name;
        }
}</pre>
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<p style='margin-top:0;margin-bottom:10px;'>This query throws a NPE.</p>
<div class="code panel" style="border-width: 1px;"><div class="codeHeader panelHeader" style="border-bottom-width: 1px;"><b>bySimpleNaturalId() query</b></div><div class="codeContent panelContent">
<pre class="code-java">Page result = (Page) getSession().bySimpleNaturalId(Page.class).load(pageName);</pre>
</div></div>
<p style='margin-top:0;margin-bottom:10px;'>This is the workaround criteria based-query, works perfectly</p>
<div class="code panel" style="border-width: 1px;"><div class="codeHeader panelHeader" style="border-bottom-width: 1px;"><b>criteria based query</b></div><div class="codeContent panelContent">
<pre class="code-java">Page result = (Page) getSession().createCriteria(Page.class).add(Restrictions.naturalId().set(<span class="code-quote">"name"</span>, pageName)).setCacheable(<span class="code-keyword">true</span>).uniqueResult();</pre>
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<strong style="font-weight:normal;color:#505050;">Environment:</strong>
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Hibernate 4.1.7.Final, MySQL 5.5.22, Spring 3.1.2.RELEASE, ehCache 2.6.0
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<strong style="font-weight:normal;color:#505050;">Project:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a style="color:#6c797f;" href="https://hibernate.onjira.com/browse/HHH">Hibernate ORM</a>
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<strong style="font-weight:normal;color:#505050;">Priority:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<img src="https://hibernate.onjira.com/images/icons/priority_minor.gif" height="16" width="16" border="0" align="absmiddle" alt="Minor"> Minor
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<strong style="font-weight:normal;color:#505050;">Reporter:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a class="user-hover" rel="phoenixac" id="email_phoenixac" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=phoenixac" style="color:#6c797f;">Francisco Pérez</a>
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