Thanks Mark. I have read and tried those things in another
thread but nothing works.
Somewhere, it is saying that it is a Hibernate bug.
On my project, I have a PK of the object to delete. What I did is, get all the related objects, iterate through it, compare their PK, if their equal, get that object and delete it. It's not the best way but at least it's working.
If you have further input, I appreciate it.
Thanks!