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https://issues.apache.org/jira/browse/OPENJPA-925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Donald Woods reopened OPENJPA-925:
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This also needs to be applied against the 1.2.x branch to resolve a EJB TCK
issue found by Geronimo.
> Bidirectional OneToOne relation incorrectly set in loadEagerJoin
> ----------------------------------------------------------------
>
> Key: OPENJPA-925
> URL: https://issues.apache.org/jira/browse/OPENJPA-925
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 1.2.0, 1.2.1, 1.3.0, 2.0.0-M1, 2.0.0
> Reporter: Catalina Wei
> Assignee: Catalina Wei
> Fix For: 1.3.0, 2.0.0
>
> Attachments: OPENJPA-925-branches12x.patch,
> OPENJPA-925-branches12x.patch
>
>
> A test scenario uncovers a bug in eager loading bidirectional OneToOne
> relation.
> OneOneParent has a bidirectional OneToOne relation with OneOneChild as
> annotated as following:
> @Entity
> public class OneOneParent {
> ...
> @OneToOne(mappedBy="parent")
> private OneOneChild child;
> }
> @Entity
> public class OneOneChild {
> ...
> @OneToOne
> private OneOneParent parent;
> }
> Testcase:
> String query = "select c FROM OneOneChild c";
> Query q = em.createQuery(query);
> List list = q.getResultList();
> for (int i = 0; i < list.size(); i++) {
> OneOneChild c = (OneOneChild) list.get(i);
> assertEquals(c, c.getParent().getChild());
> }
> We expect c equals c.getParent().getChild(), but instead got assertion
> failure.
> It seems to be a bug introduced in performance improvement work (the related
> issues: OPENJPA-292 & OPENJPA-744).
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