org.hibernate.AssertionFailure: dirty, but no dirty properties -------------------------------------------------------------- Key: EJB-180 URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-180 Project: Hibernate Entity Manager Type: Bug

Environment: JBoss 4.0.4CR2 Reporter: Michał Borowiecki

This exception is raised in the following scenario: 1. An entity is returned from a find operation. 2. It is modified. 3. EntityManager.merge is called on it. 4. In the PreUpdate callback the bean has its fields modified to the values they had before step 2. 5. The DefaultFlushEntityEventListener determines that all the fields have their values equal to those in the cache and raises the error: org.hibernate.AssertionFailure: dirty, but no dirty properties at org.hibernate.event.def.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:256) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:121) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:988) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:337) at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:473) This bug is probably a reincarnation of EJB-29, however that report did not have a comprehensive description so I decided to create a new one.