<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">
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<td id="email-page" style="padding:16px !important;">
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<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>
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<a class="user-hover" rel="hardy.ferentschik" id="email_hardy.ferentschik" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=hardy.ferentschik" style="color:#6c797f;">Hardy Ferentschik</a>
edited a comment on <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/HV-655'>HV-655</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/HV-655'><strong>ClassCastException due to unchecked cast in ValidatorImpl</strong></a>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<div class="comment-block" style="background-color:#edf5ff;border:1px solid #dddddd;color:#000000;padding:12px;"><p>As I said, I'm not completely sure about conditions, I have problems reproducing it (I suspect our development environment is different from testing environment) and I'm trying to guess what happened from logs of our testing environment. I will try to write down all details I know:</p>
<ul class="alternate" type="square">
<li>We are using Spring validator factory bean. I don't think it's important, but here is the validator initializing code:
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-java">StaticContextAccessor.getApplicationContext().getBean(<span class="code-quote">"validatorFactory"</span>, LocalValidatorFactoryBean.class).getValidator()</pre>
</div></div></li>
<li>It happens when the validator is called directly in our code:
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-java">validator.validateValue(bean.getClass(), propertyName, propertyValue, groups);</pre>
</div></div></li>
<li>I think (however I'm not sure) that one of the failing cases is this:<br/>
<div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent">
<pre>bean.getClass() = SomeComplexType, propertyName="orders[0].request.amount"</pre>
</div></div>, where orders is of type List<SomeOtherComplexType>, propertyValue=null, groups=SomeNonDefaultGroup</li>
<li>I suspect the problem is in that generic list</li>
<li>Right now I'm trying workaround - instead of validating nested property I resolve the "request" property myself and validate amount against it. It exludes the generic list from processing and I think it works, but I get wrong paths in constraint validation, but that's another story.</li>
</ul>
<p>This is all I know (sorry for obfuscation, security here is very tight), I hope it will be helpful. The stacktrace of typical failure is this</p>
<div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent">
<pre>Caused by: java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl incompatible with java.lang.Class
at org.hibernate.validator.internal.engine.ValidatorImpl.collectMetaConstraintsForPath(ValidatorImpl.java:1176)
at org.hibernate.validator.internal.engine.ValidatorImpl.validateValueInContext(ValidatorImpl.java:671)
at org.hibernate.validator.internal.engine.ValidatorImpl.validateValue(ValidatorImpl.java:169)
</pre>
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</table><!-- End #email-wrap -->
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