I'm not sure if this is the correct place for this issue, but I didn't see anything under HValidator about ri. This bug exists in the maven artifact
If there is a newer version that fixes this bug I apologize. In any case, in the jar above, the issue occurs in javax.validation.Validation$DefaultValidationProviderResolver.getValidationProviders
Line 322 has:
but I believe it should be:
In order to work on non-ASCII platforms (EBCDIC in my case)
A service provider identifies itself... The file must be encoded in UTF-8.