如何使用GSON获取两个json对象之间的差异？

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

import java.util.HashMap;
import java.util.Map;

public class JsonDiffExample {

    public static void main(String[] args) {
        String jsonStr1 = "{\"name\":\"Alice\",\"age\":30,\"hobbies\":[\"reading\",\"swimming\"]}";
        String jsonStr2 = "{\"name\":\"Alice\",\"age\":31,\"hobbies\":[\"reading\",\"cooking\"]}";

        JsonObject obj1 = JsonParser.parseString(jsonStr1).getAsJsonObject();
        JsonObject obj2 = JsonParser.parseString(jsonStr2).getAsJsonObject();

        Map<String, Object> diff = findDiff(obj1, obj2);
        System.out.println(diff);
    }

    private static Map<String, Object> findDiff(JsonElement el1, JsonElement el2) {
        Map<String, Object> diff = new HashMap<>();

        if (el1.isJsonObject() && el2.isJsonObject()) {
            JsonObject obj1 = el1.getAsJsonObject();
            JsonObject obj2 = el2.getAsJsonObject();

            for (String key : obj1.keySet()) {
                JsonElement val1 = obj1.get(key);
                JsonElement val2 = obj2.get(key);

                if (val2 == null || !val1.equals(val2)) {
                    diff.put(key, compareJsonElements(val1, val2));
                }
            }

            for (String key : obj2.keySet()) {
                if (!obj1.has(key)) {
                    diff.put(key, compareJsonElements(null, obj2.get(key)));
                }
            }
        } else if (el1.isJsonArray() && el2.isJsonArray()) {
            // Compare arrays
        } else {
            if (!el1.equals(el2)) {
                diff.put("value", new Object[]{el1, el2});
            }
        }

        return diff;
    }

    private static Object compareJsonElements(JsonElement el1, JsonElement el2) {
        Map<String, Object> arrDiff = new HashMap<>();
        arrDiff.put("el1", el1);
        arrDiff.put("el2", el2);
        return arrDiff;
    }
}