Hi, thanks for the feedback. I am just wondering why you are using 4.3 version of Validator for method validation? In that version method validation was a Hibernate Validator specific functionality which was then (with modifications) added to the Bean Validation 1.1 specification. So if you can I recommend you are using a Hibernate Validator 5.x version for method validation. Not only do you use a standardized API in this case, the code base is also much more tested.

I am not sure whether it is worth investing too much time debugging method validation in this version of Validator, unless you already know the concrete reason for the problem.