Session.setReadOnly(Object, boolean) fails for proxies ------------------------------------------------------ Key: HHH-1352 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1352 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.1 Environment: Hibernate 3.1, MySQL 5.0.15-nt Reporter: Stewart Cambridge Assignee: Steve Ebersole Priority: Minor Original Estimate: 1 day Remaining Estimate: 1 day Session.setReadOnly(Object, boolean) is broken. It throws a TransientObjectException with the message "Instance was not associated with the session" when the object is quite obvious associated with the current session, because we only just loaded it using Session.load(Class, Serializable) Here is a simple JUnit test, for an arbitrary entity: public void testReadOnly() throws Exception { User user = (User) session.load(User.class, new Long(7)); System.out.println("\n=== " + user + " ==="); session.setReadOnly(user, true); } This is the exception stack trace: org.hibernate.TransientObjectException: Instance was not associated with the session at org.hibernate.engine.StatefulPersistenceContext.setReadOnly(StatefulPersistenceContext.java:1167) at org.hibernate.impl.SessionImpl.setReadOnly(SessionImpl.java:1740) at test.persistence.HibernateObjectTest.testReadOnly(HibernateObjectTest.java:30) ....