JPA  no joins created for to-many relationship
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                 Key: CAY-860
                 URL: https://issues.apache.org/cayenne/browse/CAY-860
             Project: Cayenne
          Issue Type: Bug
          Components: Cayenne JPA
    Affects Versions: 3.0
            Reporter: Andrus Adamchik
            Assignee: Andrus Adamchik
             Fix For: 3.0


The following complimentary relationship mapping:

@Entity
public class Artist {
     ...

        @OneToMany(targetEntity = Painting.class, mappedBy = "artist")
        protected Collection<Painting> paintings;
}

@Entity
public class Painting {
        @ManyToOne
        protected Artist artist;
}

On Cayenne side, paintings DbRelationship is created with no joins 

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