public static List<Base> remove(List<Subclass> arrange ) {
    List<Base>update = new ArrayList<>();

    for(Subclass arranging : arrange){

      ....................
    }
    return update;
  }

public static List<Subclass> remove(List<Subclass> arrange ) {
    List<Subclass>update = new ArrayList<>();

    for(Subclass arranging : arrange){

      ....................
    }
    return update;
  }