[OPENJPA-2528] EntityManager.find ClassCastException for wrong but existing id

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.2.2
• Component/s: kernel
• Environment: Windows 7, jdk 1.7.0_45 64 bit
• Assignee: Unassigned
• Reporter: Oleg Lyalikov
• Created: 12/Sep/14 08:02
• Updated: 03/Aug/20 04:06

Description

I have base entity and 2 inheritors e.g. Person and Document.
If I try to find Person entity and provide id of the Document entity like

Person p = em.find(Person.class, document.getId());

I get

java.lang.ClassCastException: org.apache.openjpa.find.entities.Document cannot be cast to org.apache.openjpa.find.entities.Person
at org.apache.openjpa.find.FindTest.testFind(FindTest.java:54)

but it should return either null or EntityNotFoundException.

If I provide just some wrong non existing id I get null.

The maven project with test is attached to the issue.
Original discussion: http://openjpa.208410.n2.nabble.com/EntityManager-find-ClassCastException-for-wrong-but-existing-id-td7587085.html