将我的LZ77标记保存在n java的解压缩文件中

import java.io.*;
import java.util.*;

public class LZ77Compression {
    // LZ77压缩算法
    public static List<Pair<Integer, Integer>> compress(String input) {
        List<Pair<Integer, Integer>> tags = new ArrayList<>();
        int windowSize = 12; // 滑动窗口大小
        int bufferSize = 4; // 查找缓冲区大小

        int inputSize = input.length();
        int position = 0;

        while (position < inputSize) {
            int offset = 0;
            int length = 0;

            for (int i = Math.max(0, position - windowSize); i < position; i++) {
                int j = 0;

                while (j < bufferSize && position + j < inputSize
                        && input.charAt(i + j) == input.charAt(position + j)) {
                    j++;
                }

                if (j > length) {
                    offset = position - i;
                    length = j;
                }
            }

            if (length > 0) {
                tags.add(new Pair<>(offset, length));
                position += length;
            } else {
                tags.add(new Pair<>(0, 0));
                position++;
            }
        }

        return tags;
    }

    // LZ77解压缩算法
    public static String decompress(List<Pair<Integer, Integer>> tags) {
        StringBuilder output = new StringBuilder();
        int windowSize = 12; // 滑动窗口大小

        for (Pair<Integer, Integer> tag : tags) {
            int offset = tag.getKey();
            int length = tag.getValue();

            if (length > 0) {
                int start = output.length() - offset;
                for (int i = 0; i < length; i++) {
                    output.append(output.charAt(start + i));
                }
            }

            if (length > 0) {
                output.append(output.charAt(output.length() - 1));
            }
        }

        return output.toString();
    }

    public static void main(String[] args) {
        String input = "abracadabra"; // 待压缩的输入数据
        List<Pair<Integer, Integer>> tags = compress(input); // 压缩数据

        try {
            // 将压缩数据保存到文件中
            FileOutputStream fileOutputStream = new FileOutputStream("compressed.lz77");
            ObjectOutputStream objectOutputStream = new ObjectOutputStream(fileOutputStream);
            objectOutputStream.writeObject(tags);
            objectOutputStream.close();
            fileOutputStream.close();

            // 从文件中读取压缩数据并解压缩
            FileInputStream fileInputStream = new FileInputStream("compressed.lz77");
            ObjectInputStream objectInputStream = new ObjectInputStream(fileInputStream);
            List<Pair<Integer, Integer>> compressedTags = (List<Pair<Integer, Integer>>) objectInputStream.readObject();
            objectInputStream.close();
            fileInputStream.close();

            String decompressed = decompress(compressedTags); // 解压缩数据
            System.out.println("Input: " + input);
            System.out.println("Decompressed: " + decompressed);
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}