When executing a projecting query through a native query we must not use em.createNativeQuery(String, Class<?>) as this expects an entity type as type parameter. We now use the newly introduced isQueryMethodForEntity() on JpaQueryMethod to determine whether the query is actually projecting and rather use the plain em.createNativeQuery(String).
Fixed dependency configuration for Hamcrest and JUnit (upgrade to JUnit 4.10, depending on junit-dep).
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