Java Stream - 如何使用方法引用创建Callable

import java.util.UUID;
import java.util.concurrent.Callable;

public class Main {
  public static void main(String... args) {
    Callable<UUID> callable = UUID::randomUUID;
    try {
      System.out.println(callable.call());
    } catch (Exception e) {
      e.printStackTrace();
    }

  }
}