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POHibernate - NonUniqueObjectException
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copied!<p>I use JPA/Hibernate with Spring transaction management in my application. There is a InspectionEntity which has a one-to-many relation with InspectionDetailEntity. The PKs for both the entity's are created by an insert trigger in the database. The PK values when I try to save is the default 0 value. I add the InspectionDetailEntity to the InspectionEntity by calling addInspectionDetail() and then save the InspectionEntity - <code>entityManager.persist(inspection);</code> What I expect is the Inspection to be saved with all the InspectionDetail's. But this results in a <strong>org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.xyz.entity.InspectionDetailEntity#0].</strong> I also tried setting the Set directly into the InspectionEntity (without using the addInspectionDetail() ). This also results in the same error. Any help would be highly appreciated.</p> <pre><code>@Entity @Table(name = "tb_inspection") public class InspectionEntity { @Id @Column(name = "inspection_id") private Integer inspectionId; @OneToMany(fetch = FetchType.EAGER, mappedBy = "inspectionDetailId", cascade = CascadeType.ALL) @JoinColumn(name = "inspection_id", insertable = true, updatable = true) private Set<InspectionDetailEntity> inspectionDetails; /** * Adds a inspectionDetailEntity to the set of inspectionDetails * @param inspectionDetailEntity */ public void addInspectionDetail(InspectionDetailEntity inspectionDetailEntity) { if(inspectionDetails == null) inspectionDetails = new HashSet<InspectionDetailEntity>(); inspectionDetailEntity.setInspection(this); inspectionDetails.add(inspectionDetailEntity); } //setter and getters } @Entity @Table(name = "tb_inspection_dtl") public class InspectionDetailEntity { @Id @Column(name = "inspection_dtl_id") private Integer inspectionDetailId; @Column(name = "inspection_id") private Integer inspectionId; @ManyToOne @JoinColumn(name="inspection_id", insertable = false, updatable = false) private InspectionEntity inspection; //setters and getters } </code></pre>

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