History

In around 2012 we faced the problem of some persistence providers not producing the correct exceptions for calls to EntityManager.createQuery(…) (reported here). As a response, we added a rather broad catch clause to SimpleJpaQuery.validateQuery(…) that wraps any RuntimeException in an IllegalArgumentException.

Problem

If the original exception already is an IAE, and that seems to be the case as of today, we will just end up re-wrapping it without further benefit. This was brought up here, just recently.

Suggested solution

We could actually just throw the original exception to avoid the wrapping for this particular case.