If one of these fields is accidentally reassigned, it's possible for threads to be oblivious to an existing lock. By making the fields readonly, we will be notified at compile-time if we inadvertently redefine one of these fields.
If one of these fields is accidentally reassigned, it's possible for threads to be oblivious to an existing lock. By making the fields readonly, we will be notified at compile-time if we inadvertently redefine one of these fields.