The following workaround can be used to reset the xelsysadm password:
1. In USR table using SQL Developer, manually copy the "xeloperator's" or "Group Operator's" encrypted password to xelsysadm user's password column and commit (Use Ctl-C and Ctrl-V).
2. Then login into admin console using username: xelsysadm and password as : xeloperator
The default password for "xeloperator's" or "Group Operator's" is xeloperator
3. If Set up Security Questions Screen Appears then again reset password for xelsysadm via oim console for the password change to get propagated.
Note: When OIM is integrated with OAM having LDAP sync, this note doenst apply there as the passwords are in the LDAP not in the OIM DB.