如何覆盖JXBrowser默认下载文件路径？

import com.teamdev.jxbrowser.chromium.Browser;
import com.teamdev.jxbrowser.chromium.BrowserPreferences;
import com.teamdev.jxbrowser.chromium.DownloadHandler;
import com.teamdev.jxbrowser.chromium.events.DownloadEvent;
import com.teamdev.jxbrowser.chromium.swing.BrowserView;

import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class JXBrowserDownloadExample {
    public static void main(String[] args) {
        // 设置自定义的下载文件路径
        BrowserPreferences.setDownloadHandler(new CustomDownloadHandler());

        // 创建浏览器对象
        Browser browser = new Browser();
        BrowserView view = new BrowserView(browser);

        // 创建主窗口
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.add(view, BorderLayout.CENTER);
        frame.setSize(800, 600);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);

        // 加载网页
        browser.loadURL("https://www.example.com");
    }

    private static class CustomDownloadHandler implements DownloadHandler {
        @Override
        public void onDownload(DownloadEvent event) {
            // 设置自定义的下载文件路径
            event.getDownload().setDestinationDirectory("C:/Custom/Download/Path");
        }
    }
}