XA recovery requirements

XA requirements: The database adapter participates in distributed transactions and requires the back-end database setup for XA recovery by Oracle WebLogic Transaction Manager. Ensure that XA pre-requisites are met. For this, log on to SQL*Plus as a system user, for example, enter sqlplus "/ as sysdba" and then grant the following privileges:
Sql>Grant select on sys.dba_pending_transactions to public.
Sql>Grant execute on sys.dbms_xa to public.
Sql>Grant force any transaction to public;