从文件中读取对象的ArrayList时出错？

import java.io.FileInputStream;
import java.io.ObjectInputStream;
import java.util.ArrayList;

public class ReadArrayListFromFile {
    public static void main(String[] args) {
        try {
            FileInputStream fileIn = new FileInputStream("path/to/file.ser");
            ObjectInputStream in = new ObjectInputStream(fileIn);
            ArrayList<Object> arrayList = (ArrayList<Object>) in.readObject();
            in.close();
            fileIn.close();
            
            // 对读取到的ArrayList进行后续操作
            // ...
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}