Problem using @PreUpdate in a callback

[jc7442]

I have the following model:
Widget->1AuditInfo

@EntityListener(AuditCallbackListener.class)
public class Widget implements Serializable,Auditable {
...
 @Embedded
 public AuditInfo getAuditInfo() {
 return auditInfo;
 }
...

The AuditCallbackListener looks like:

public class AuditCallbackListener {
 @PreUpdate
 public void doPreUpdate(Auditable audit) throws Exception{
 System.out.println("doPreUpdate ...");
 AuditInfo info = audit.getAuditInfo();
 info.setLastUpdated(new Date(System.currentTimeMillis()));
 }
 }

When I update a widget, I any case I see the trace write in @PreUpdate.

When AuditInfo is declared as embedded, the last update date is persisted in the DB.

But if AuditInfo is an entity (@OneToOne relationship instead of @embedded) the date is not persisted in DB.

Is it a bug ? Any suggestions are welcome !

Regards