If you have your new OIM11g install configured to allow reuse of User Logins, be aware that any custom code that utilizes the UserManager.changePassword or UserManager.getDetails methods will potentially return the old, deleted account if you use User Login as your search key. If you make use of these functions in any custom code, you will want to first do a UserManager.search with the User Login to get the Entity ID/usr_key and then use this value in your changePassword or getDetails call. The search method does not return deleted accounts unless you explicitly search for them.
