Hardy, this may actually be a waste of time.

I've just read the javadoc for javax.validation.ConstraintValidator (http://docs.oracle.com/javaee/6/api/javax/validation/ConstraintValidator.html) which indicates that the generic type must resolve to a non parameterized type or generic parameters must be unbounded wildcard types.

I think this issue only occurs when one of these 2 restrictions is not true. Sorry if you spent any time on this.