Hello,
This is in continuation with the question I logged as a "Unregistered User". I did not find a way to add comments (as suggested by Plínio Pantaleão) to that question, so created a "Registered Account" and this question. Apologies if there really was a wy to do this.
Please refer to http://stackoverflow.com/questions/3812968/optimistic-lock-exception-with-foreign-keys
Replying to Comment of James... Please find at files at ...
Log of the operations. Entities that were created.
Thanks