I'm getting a ClassCastException when trying to retrieve an object from the database. It's being called from a unit test using the spring framework. The funny thing is, when the unit test is run by itself, the test works fine. When it's run as part of a suite of all tests in the app, it errors with the following:

java.lang.ClassCastException: org.hibernate.util.MarkerObject
at org.hibernate.engine.PersistenceContext.getCachedDatabaseSnapshot(PersistenceContext.java:310)
at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:350)
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:108)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:190)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:70)
at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:39)
at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:711)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1315)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:300)
at org.springframework.orm.hibernate3.HibernateTemplate$5.doInHibernate(HibernateTemplate.java:509)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:356)
at org.springframework.orm.hibernate3.HibernateTemplate.loadAll(HibernateTemplate.java:505)
at

I'm struggling with the same exception but I'm not using springs hibernate template. does anyone have a clue what this is about?

I found the fix for my issue... it was a follow up error for a mapping bug of mine. Did you get any further exceptions in your log?