HQL queries of the form
"from EntityA a left join fetch a.entityB b left join fetch b.items"
fail with a NullPointerExeption when EntityA and EntityB have a one-to-one (@OneToOne) relationship and EntityB.items is an element collection (@ElementCollection, aka collection of values).
For comparison, the following HQL queries are all admissible (which intends to demonstrate that no particular clause of the the above HQL is incorrect):
"from EntityB b left join fetch b.items"
"from EntityA a left join fetch a.entityB"
"from EntityA a left join fetch a.entityB.items"
"from EntityA a left join fetch a.entityCs c left join fetch c.items" (where EntityA and EntityC have a one-to-many (@OneToMany) relationship, and EntityC.items is an element collection)
Test code is attached. The log output along with thrown exception is attached as log.txt.
Hibernate 3.5.4, Postgresql 8.4, Java 6
Will this bug be fixed soon or just ignored?
There is a patch avilable, why not run the test and include the fix in the next release??
This also fails when the relationship between EntityA and EntityB is a ManyToOne-Relation!!!
This bug is really annoying, please include the fix in the next release!
Another testcase for this bug
Would anyone mind backporting the fix for this issue to the 4.2.x branch?