<style>
/* 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; }
}
</style>
<div id="email-body">
<table id="email-wrap" align="center" border="0" cellpadding="0" cellspacing="0" style="background-color:#f0f0f0;color:#000000;width:100%;">
<tr valign="top">
<td id="email-page" style="padding:16px !important;">
<table align="center" border="0" cellpadding="0" cellspacing="0" style="background-color:#ffffff;border:1px solid #bbbbbb;color:#000000;width:100%;">
<tr valign="top">
<td bgcolor="#3e4c4e" style="background-color:#3e4c4e;color:#ffffff;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;line-height:1;"><img src="https://www.jboss.org/dms/hibernate/images/jira/jiraheader_hibernate.png" alt="" style="vertical-align:top;" /></td>
</tr><tr valign="top">
<td id="email-banner" style="padding:32px 32px 0 32px;">
<table align="left" border="0" cellpadding="0" cellspacing="0" width="100%" style="width:100%;">
<tr valign="top">
<td style="color:#505050;font-family:Arial,FreeSans,Helvetica,sans-serif;padding:0;">
<div id="email-action" style="padding: 0 0 8px 0;font-size:12px;line-height:18px;">
<a class="user-hover" rel="djmj" id="email_djmj" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=djmj" style="color:#6c797f;">Marco Janc</a>
edited a comment on <img src="https://hibernate.onjira.com/images/icons/improvement.gif" height="16" width="16" border="0" align="absmiddle" alt="Improvement"> <a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7235'>HHH-7235</a>
</div>
<div id="email-summary" style="font-size:16px;line-height:20px;padding:2px 0 16px 0;">
<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7235'><strong>Support null NaturalId values in loadEntityIdByNaturalId query</strong></a>
</div>
</td>
</tr>
</table>
</td>
</tr>
<tr valign="top">
<td id="email-fields" style="padding:0 32px 32px 32px;">
<table border="0" cellpadding="0" cellspacing="0" style="padding:0;text-align:left;width:100%;" width="100%">
<tr valign="top">
<td id="email-gutter" style="width:64px;white-space:nowrap;"></td>
<td>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr valign="top">
<td colspan="2" style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 16px 0;width:100%;">
<div class="comment-block" style="background-color:#edf5ff;border:1px solid #dddddd;color:#000000;padding:12px;"><p>Thanks for that quick reply:</p>
<p>I simplified my code to a working example that produces same error. </p>
<p>Log: INFO: HHH000412: Hibernate Core {4.1.4.Final}</p>
<p>Mapping:</p>
<div class="code panel" style="border-style: solid;border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-xml"><span class="code-tag"><hibernate-mapping></span>
<span class="code-tag"><class name=<span class="code-quote">"package.Node"</span> table=<span class="code-quote">"node"</span> catalog=<span class="code-quote">"database"</span>></span>
<span class="code-tag"><id name=<span class="code-quote">"id"</span> type=<span class="code-quote">"java.lang.Integer"</span>></span>
<span class="code-tag"><column name=<span class="code-quote">"id"</span> /></span>
<span class="code-tag"><generator class=<span class="code-quote">"identity"</span> /></span>
<span class="code-tag"></id></span>
<span class="code-tag"><natural-id mutable=<span class="code-quote">"true"</span>></span>
<span class="code-tag"><property name=<span class="code-quote">"name"</span> type=<span class="code-quote">"string"</span>></span>
<span class="code-tag"><column name=<span class="code-quote">"name"</span> length=<span class="code-quote">"64"</span> not-null=<span class="code-quote">"true"</span> /></span>
<span class="code-tag"></property></span>
<span class="code-tag"><many-to-one name=<span class="code-quote">"parent"</span> class=<span class="code-quote">"package.Node"</span> lazy=<span class="code-quote">"false"</span> fetch=<span class="code-quote">"select"</span> update=<span class="code-quote">"false"</span>></span>
<span class="code-tag"><column name=<span class="code-quote">"parent"</span> /></span>
<span class="code-tag"></many-to-one></span>
<span class="code-tag"></natural-id></span>
<span class="code-tag"></class></span>
<span class="code-tag"></hibernate-mapping></span></pre>
</div></div>
<p>Check for duplicate existence using natural-id:</p>
<div class="code panel" style="border-style: solid;border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-java"><span class="code-comment">// check <span class="code-keyword">for</span> existence
</span><span class="code-keyword">final</span> NaturalIdLoadAccess nila = session.byNaturalId(Node.class);
nila.using(<span class="code-quote">"name"</span>, <span class="code-quote">"test"</span>);
nila.using(<span class="code-quote">"parent"</span>, <span class="code-keyword">null</span>);
Node node = (Node) nila.load(); <span class="code-comment">// fires exception
</span>
<span class="code-keyword">if</span> (node == <span class="code-keyword">null</span>)
{
node = <span class="code-keyword">new</span> Node();
node.setName(<span class="code-quote">"test"</span>);
session.save(pc);
}</pre>
</div></div>
</div>
<div style="color:#505050;padding:4px 0 0 0;"> </div>
</td>
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</table>
</td>
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</table>
</td>
</tr>
</table>
</td><!-- End #email-page -->
</tr>
<tr valign="top">
<td style="color:#505050;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:10px;line-height:14px;padding: 0 16px 16px 16px;text-align:center;">
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</td>
</tr>
</table><!-- End #email-wrap -->
</div><!-- End #email-body -->