如何正确地将Java Hashmap转换为javascript数组

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import java.util.HashMap;
import java.util.Map;

public class HashMapToJavascriptArray {
    public static void main(String[] args) {
        // 创建一个Java HashMap
        Map<String, Integer> hashMap = new HashMap<>();
        hashMap.put("key1", 1);
        hashMap.put("key2", 2);
        hashMap.put("key3", 3);

        // 提取键集合并转换为Java数组
        String[] keys = hashMap.keySet().toArray(new String[0]);

        // 创建一个ScriptEngine实例
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine engine = manager.getEngineByName("javascript");

        try {
            // 将Java数组传递给JavaScript
            engine.put("keys", keys);

            // 执行JavaScript代码将Java数组转换为JavaScript数组
            engine.eval("var javascriptArray = Array.from(keys);");

            // 获取JavaScript数组
            Object javascriptArray = engine.get("javascriptArray");

            // 打印JavaScript数组
            System.out.println(javascriptArray);
        } catch (ScriptException e) {
            e.printStackTrace();
        }
    }
}