How to get all privileges assigned to a particular role

I need to get a list of privileges assigned to a particular role.

I tried

SELECT ROLE, PRIVILEGE FROM ROLE_SYS_PRIVS WHERE ROLE='ROLE1';

SELECT ROLE, GRANTED_ROLE FROM ROLE_ROLE_PRIVS WHERE ROLE='ROLE1';

SELECT ROLE, TABLE_NAME, PRIVILEGE FROM ROLE_TAB_PRIVS;

but neither returned any rows. Am I missing anything or the role really does not have any privileges assigned to it?