It didn't work for me. My test still fails with the latest snapshot.

Ah, sorry, the snapshot had not been deployed (I assumed the continuous job would trigger that but actually the deployment is running only once per week; we should change that). Anyways, I've triggered the deploy job manually and the JARs are there now.

Suggestion: the method handleValidatedValue() could be called unwrapValidatedValue()

We went for the more generic name having a potential evolvement into generic means of value unhandling in mind (see HV-851 for the discussion of the details).