如何保存和加载包含另一个类的列表的类？

import java.io.FileOutputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.List;

public class MyClass implements Serializable {
    private List<AnotherClass> list;

    // 省略其他代码

    public void saveToFile(String fileName) {
        try {
            FileOutputStream fileOut = new FileOutputStream(fileName);
            ObjectOutputStream objectOut = new ObjectOutputStream(fileOut);
            objectOut.writeObject(this);
            objectOut.close();
            fileOut.close();
            System.out.println("保存成功！");
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

import java.io.FileInputStream;
import java.io.ObjectInputStream;

public class MyClass implements Serializable {
    private List<AnotherClass> list;

    // 省略其他代码

    public static MyClass loadFromFile(String fileName) {
        MyClass myClass = null;
        try {
            FileInputStream fileIn = new FileInputStream(fileName);
            ObjectInputStream objectIn = new ObjectInputStream(fileIn);
            myClass = (MyClass) objectIn.readObject();
            objectIn.close();
            fileIn.close();
            System.out.println("加载成功！");
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return myClass;
    }
}