javax.persistence.OptimisticLockException + org.hibernate.StaleObjectStateException

Question

Hi!

I'm catching javax.persistence.OptimisticLockException which works great, but I'm getting the stacktrace of StaleObjectStateException in my server log. I've checked and the getCause() on OptimisticLockException returns StaleObjectStateException, but why is it printed out to server.log? It's really annoying, I'm writing a test, where two thread are modifying the same object, and one of the are throwing OptimisticLockException which is expected, but getting stacktrace of StaleObjectStateException is not what is wanted.

Thanks for your help!