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http://opensource.atlassian.com/projects/hibernate/browse/HHH-3332?page=c...
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Mike Ressler commented on HHH-3332:
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I just downloaded hibernate-3.5.5-Final to see if this was resolved The issue still
exists for me. Anyone else following this bug having similar problems? I'll try to
come up with a failing test case for this issue.
Hibernate duplicate then child entity's on merge
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Key: HHH-3332
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-3332
Project: Hibernate Core
Issue Type: Bug
Affects Versions: 3.2.6
Environment: JDK 1.6
Oracle 9i
Hibernate 3.2.6
Hibernate Annotations 3.3.1
Hibernate EntityManager 3.3.2
Standalone Running
Reporter: Rodrigo de Assumpção
Assignee: Gail Badner
Priority: Critical
Attachments: ExampleBug.zip, Hibernate3332TestCase.zip
The method merge from EntityManager causes a duplication of child entity's.
class Father:
@OneToMany(mappedBy = "father", cascade={CascadeType.ALL},
fetch=FetchType.LAZY)
private List<Child> childList;
class Child:
@ManyToOne @JoinColumn(name = "ID_FATHER")
private Father father;
class BugTest
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("JpaTestHB");
EntityManager em = emf.createEntityManager();
Father f = (Father) em.createQuery("SELECT f FROM Father f WHERE f.id =
1").getSingleResult();
Child c = new Child();
c.setFather(f);
f.getChildList().add(c);
em.getTransaction().begin();
em.merge(f);
em.getTransaction().commit();
The execution of BugTest Class causes tow insert's on table "child".
If you change the fetch mode to EAGER (into Father class) the problem not occurs.
I make the same test with Toplink, and it make a unique insert, normal.
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