[hibernate-issues] [Hibernate-JIRA] Created: (HHH-4036) EntityMetamodel entityNameByInheritenceClassNameMap field used inconsistently

[Jeremy Stone (JIRA)]

EntityMetamodel entityNameByInheritenceClassNameMap field used inconsistently
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                 Key: HHH-4036
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4036
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.3.2
            Reporter: Jeremy Stone


After upgrading (from 3.3.0.SP1) to 3.3.2.GA we have started getting the follow stack trace logged:

org.hibernate.HibernateException: Unable to resolve entity name from Class [com.cyclone.netPrefect.admin.restriction.complex.TimeSpanRestrictionItemEntity] expected instance/subclass of [RestrictionItem]
   at org.hibernate.tuple.entity.PojoEntityTuplizer.determineConcreteSubclassEntityName(PojoEntityTuplizer.java:363)
   at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassEntityPersister(AbstractEntityPersister.java:3643)
   at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1375)
   at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:203)
   at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:535)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:103)
... etc, etc

The com.cyclone.netPrefect.admin.restriction.complex.TimeSpanRestrictionItemEntity is mapped (with entity name TimeSpanRestrictionItem) as a joined subclass of the entity named RestrictionItem.

I have had a look at the Hibernate source for 3.3.2.ga and it looks like problem is the way that the org.hibernate.tuple.entity.EntityMetamodel is using it entityNameByInheritenceClassNameMap field:

      * Puts to the map are based on PersistentClass.getMappedClass() as a key - a Class object
      * Gets from the map (in findEntityNameByEntityClass method) are using the class name

Presumably (given the name of the map field) both put and get should be using the class name.

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