EJB3 Inheritance complains about a parent's collection

[falchion14]

Hello All,

Ran into a strange problem (not really sure what is wrong) when I tried to extend a working Entity Bean. The extended Entity Bean complains about a collection in its parent class.

Here is the error message:

org.hibernate.AnnotationException: Collection of elements must not have mappedBy or association reference an unmapped entity: TrackedItem.userData

Here is TrackedItem:

@Entity
@Inheritance(strategy=InheritanceType.JOINED)
@DiscriminatorValue(value = "I")
public class TrackedItem implements Serializable
{
....
 @OneToMany(mappedBy="item", cascade = {CascadeType.ALL})
 @MapKey(name="key")
 private Map<String, UserDatum> userData;
}

Here is UserDatum:

@Entity
public class UserDatum implements Serializable {
...
 private String key;
 @ManyToOne
 private TrackedItem item;
}

Here is Fail which extends TrackedItem:

@Entity
@DiscriminatorValue(value = "S")
public class Fail extends TrackedItem {
....
}

Fail doesn't contain any collections or references to userData or UserDatum.

When I deploy TrackedItem and UserDatum everything deploys cleanly, works fine and my unit tests pass. When deploy Fail, I get the error message above as the reason the deployment failed.

Any help is appreciated!

Sincerely,

Stephen

[falchion14]

Tried upgrading from EJB3 RC5 to RC6, but it has the same results (all under JBoss 4.0.4-CR2).

[falchion14]

Found the problem. It was a scope problem. Fail is in a different package and jar file from TrackedItem and UserDatum. I need to include

<jar-file>tracker.jar</jar-file>

in the persistence.xml file for Fail. That cleared up the problem by allowing Fail to see TrackedItem and UserDatum in the tracker.jar file.