ConcurrentModificationException introduced by 3.1 rc1 ----------------------------------------------------- Key: HHH-1054 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1054 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.1 rc 1 Reporter: Koda Janh Attachments: patch.gz, src.tar.gz As reported at http://forum.hibernate.org/viewtopic.php?p=2266430#2266430 there seems to be a new problem introduced by Hibernate 3.1 rc1 which does not occur when running the same trivial code under Hibernate 3.0.5. Sorry for not being able to narrow down the mapping files further but I've noticed that if any further elements were removed the problem no longer occured -- as far as I can tell, this *is* the smallest possible testcase necessary to reproduce this problem.