"org.hibernate.HibernateException: instance was not in a valid state" in Hibernate

Issue

• Migrating from Hibernate 3 / EAP 5
• During a transaction an entity referenced by an association is removed/deleted
  • Cascade.ALL or Cascade.REFRESH was specified for the association

• When calling EntityManager.refresh(Object) on the (valid) entity associated with the removed/deleted entity an exception is raised:

  ... org.hibernate.HibernateException: instance was not in a valid state
       at org.hibernate.engine.spi.EntityEntry.isReadOnly(EntityEntry.java:367)
       at org.hibernate.event.internal.DefaultRefreshEventListener.onRefresh(DefaultRefreshEventListener.java:153)
       at org.hibernate.internal.SessionImpl.fireRefresh(SessionImpl.java:1108)
       at org.hibernate.internal.SessionImpl.refresh(SessionImpl.java:1092)
       at org.hibernate.engine.spi.CascadingAction$3.cascade(CascadingAction.java:204)
       at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:396)
       at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:339)
       ...
       at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:164)
       at org.hibernate.event.internal.DefaultRefreshEventListener.onRefresh(DefaultRefreshEventListener.java:122)
       ...
       at org.hibernate.internal.SessionImpl.refresh(SessionImpl.java:1071)
       at org.hibernate.ejb.AbstractEntityManagerImpl.refresh(AbstractEntityManagerImpl.java:942)
       ...