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POJPA EclipseLink @OneToMany returns empty set
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copied!<p>I am using an embedded id:</p> <pre><code>@Embeddable public class EntityId { private long id; } </code></pre> <p>And I have the following tables:</p> <pre><code>@Entity public class Master { @EmbeddedId private EntityId id; @OneToMany(mappedBy = "master") Set<Config> configs; } @Entity public class SlaveLeft { private @EmbeddedId EntityId id; } @Entity public class SlaveRight { private @EmbeddedId EntityId id; } @Entity public class Config { @EmbeddedId private EntityId id; @ManyToOne @JoinColumn(name = "MASTER_ID", referencedColumnName = "id") private Master master; @ManyToOne @JoinColumn(name = "LEFT_ID", referencedColumnName = "id") private SlaveLeft slaveLeft; @ManyToOne @JoinColumn(name = "RIGHT_ID", referencedColumnName = "id") private SlaveRight slaveRight; } </code></pre> <p>I then populate the database:</p> <pre><code> final EntityManager em = injector.getInstance(EntityManager.class); em.getTransaction().begin(); Master master = new Master(EntityId.next()); SlaveLeft slaveLeft = new SlaveLeft(EntityId.next()); SlaveRight slaveRight = new SlaveRight(EntityId.next()); Config config = new Config(EntityId.next(), master, slaveLeft, slaveRight); em.persist(master); em.persist(slaveLeft); em.persist(slaveRight); em.persist(config); em.getTransaction().commit(); final Master master1 = em.find(Master.class, master.getId()); System.out.println(master1.getConfigs()); </code></pre> <p>The problem is that the master1.getConfigs() returns empty.</p> <p>What am I missing to get a working relation?</p>

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