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https://issues.apache.org/jira/browse/OPENJPA-187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12484899
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Abe White commented on OPENJPA-187:
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Does it work if you actually look up the "Apache OpenEJB" Projekt instance
through the EntityManager rather than constructing a new one? It might be that
OpenJPA is recognizing that the given Projekt isn't actually persistent.
> MEMBER OF query fails on OpenJPA, but works fine with TopLink and Hibernate EM
> ------------------------------------------------------------------------------
>
> Key: OPENJPA-187
> URL: https://issues.apache.org/jira/browse/OPENJPA-187
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 0.9.7
> Reporter: Jacek Laskowski
>
> What's wrong with the following query?
> Query query = em.createQuery("SELECT DISTINCT o FROM Osoba o WHERE :projekt
> MEMBER OF o.projekty");
> query.setParameter("projekt", new Projekt("Apache OpenEJB",
> RodzajProjektu.OTWARTY));
> List<Osoba> osoby = query.getResultList();
> assert osoby.size() == 1 : "Otrzymano " + osoby.size();
> where Projekt is an entity where @Id is of type String (the first input
> parameter in the two-param constructor above).
> TopLink 2.0 BUILD 40 and Hibernate EntityManager 3.3.0.GA work fine whereas
> OpenJPA 0.9.7-SNAPSHOT finishes with the java.lang.AssertionError error (it's
> the test itself actually, but since the query returns 0 elements the issue
> originates in OpenJPA).
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