I have problem with a custom class level constraint: when i use it, it get the following stacktrace: http://pastebin.com/GTFQv5iF

The constraint code is simple enough and appears to be valid: http://pastebin.com/4pXR3hRJ
At least it works (with some obvious modifications) when i use this constraint on class field.

The class (and constraint usage example) are: http://pastebin.com/vfEGe399

I'm using hibernate 3.6.1.Final and hibernate validator 4.1.0.Final, so it shouldn't be a HV-320 issue

What i'm doing wrong?

In your case the JPATRaversableResolver is enabled. I assume you are using javax.persistence. If Persistence is on your classpath each property/class to be validated will be passed to the JPATRaversableResolver to determine whether validation is required. The main idea here is that if you have eg lazy loaded collections there is no need to load them in order to validate them (under the assumption that they must have been validated when they got persisted).
To check whether a class/field is persistent PersistenceUtil.isLoaded is called. In Hibernate's case this will trigger some reflection on the class/field. It is important that when this happens the actual class/field is passed to Hibernate and not a proxy of some sort. Did you try to step through with a debugger to see which field causes the exception?

--Hardy

Thanks for the explanation!



Not yet. Right now i've prepared a small application, which can be used to reproduce the problem: http://www.chollya.org/hvbug.tar.gz
Going to unpack hibernate and validator sources this evening and check in the debugger how and where exception is threw

Well, it looks like that the field name is null. At least in PersistenceUtil calls the 'property' parameter value is null and in validator.engine functions name var in value of first and single entry of propertyPath.nodeList is null too.

Maybe you could create a simple test case and attach it to a Jira issue - http://opensource.atlassian.com/project ... /browse/HV. This would help a lot.

Thanks,
Hardy

Sure!

http://opensource.atlassian.com/project ... wse/HV-438