[eclipselink-users] Dyn. Weaving, Lazy Collection, Clone Problem

[Oliver Vesper <oliver.vesper@xxxxxx>]

Hi,

I have two entities as follows:

@Entity
public class Foo {
  @Id
  private Long id;

  @OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
  private final Collection<Bar> bars = new ArrayList<Bar>();
}

@Entity
public class Bar {
  @Transient
  private transient final PropertyChangeSupport pcs = new 
PropertyChangeSupport(this);

  @Id
  private Long id;

  @Basic(fetch = FetchType.LAZY)
  @Lob
  private byte[] data;
}

When calling Foo.getBars() I receive an IndirectList. When accessing 
elements of that list, the lazy object (here it's only 1 element) is 
being loaded and instantiated. However I can see during debug that there 
is some kind of "cloning" going on (registerExistingObject() is being 
called). In detail the Bar instance is being "cloned" and afterwards 
original and clone both point at the same PCS instance - PCS has a 
back-reference to the original Bar instance. But when accessing the list 
retrieved by getBars() I have access to the clone whose PCS is messed up.

Any ideas what is going wrong? When weaving is turned off everything 
works fine.

I hope the problem is clear enough (it's 2 am over here).

Thanks in advance,
Oliver