[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6982) ForeignKeys$Nullifier thinks a detached proxy is attached if another object with the same identifier is associated with the persistence context

[Martin Keßler (JIRA)]

ForeignKeys$Nullifier thinks a detached proxy is attached if another object with the same identifier is associated with the persistence context
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                 Key: HHH-6982
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6982
             Project: Hibernate ORM
          Issue Type: Bug
          Components: core
    Affects Versions: 3.5.1
         Environment: Hibernate 3.5.1, IBM DB2 9.7 on Win7 and AIX 6.1
            Reporter: Martin Keßler


1. Create a transient object A which has a many-to-one property of type B
2. Create a proxy of type B with identifier x via Session.load(B.class, x)
3. Set the B-property in A to B
4. Flush and clear the persistence context; the B-proxy is now detached
5. Read the B-entity with identifier x through a query; a new object with id=x is now in the persistence context
6. Persist the A-entity (Session.save)
7. ForeignKeys$Nullifier.isNullifiable is called with the B-proxy, and checks if the persistence context contains an entity with the id x
8. The persistence context actually contains such an entity, but it's not the proxy
9. Hibernate tries to initialize the detached proxy, leading to a LazyInitializationException

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