getOldState() can be null (Tested with PreUpdateEventListener) -------------------------------------------------------------- Key: HHH-1139 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1139 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.1 rc2 Environment: See unit test Reporter: Gabe H Assignee: Steve Ebersole Attachments: OldStateTest.java getOldState() on PreUpdateEvent (from a PreUpdateEventListener) can be null, if dealing with a persistent object across sessions. I think this behavior changed in rc2, but I'm not sure. I am not sure if this is a bug. You possibly may want to add some javadoc, that says the getOldState() is not always reliable. (Javadocs are not pretty empty in that event package ;) The attached unit test shows the failure. The case described in the unit test is one that happens in web applications where is a Hibernate session is created to render a page, and then is closed. But if a persistent object lives in the Http session, and it lives outside of a hibernate session. Thanks, if you have any questions about the unit test email gabrielh(a)gmail.com.