presto-hive/src/main/java/io/prestosql/plugin/hive/HiveMetadata.java/HiveMetadata/listApplicableRoles
class HiveMetadata:    @Override
    public Set<RoleGrant> listApplicableRoles(ConnectorSession session, PrestoPrincipal principal)
    {
        return accessControlMetadata.listApplicableRoles(session, HivePrincipal.from(principal));
    }