private static List<PrivRequirement> arr(PrivRequirement... privReqList){
    return Arrays.asList(privReqList);
  }
Convenience method so that creation of list of PrivRequirement is not too verbose
@param privReqList
@return
ql/src/java/org/apache/hadoop/hive/ql/security/authorization/plugin/sqlstd/Operation2Privilege.java