public void setUsers(List<String> users) {
      if (this.users == null) {
        this.users = new ArrayList<>();
      }

      if (this.users == users) {
        return;
      }

      this.users.clear();

      if (users != null) {
        this.users.addAll(users);
      }
    }
@param users the users to set
ql/src/java/org/apache/hadoop/hive/ql/exec/repl/ranger/RangerPolicy.java