Java Stream - 如何使用Optional.ofNullable和ifPresent对一个空列表进行排序

import java.util.Comparator;
import java.util.List;
import java.util.Optional;


public class Main {
  public static void main(String... args) {
    List<String> names3 = null;

    Optional.ofNullable(names3).ifPresent(list -> list.sort(Comparator.naturalOrder()));

    System.out.println(names3);

  }
}