如何在HtmlUnit查询(ExecuteJavaScript)参数中使用jQuery？

import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlPage;

public class HtmlUnitExample {
    public static void main(String[] args) throws Exception {
        try (final WebClient webClient = new WebClient()) {
            // 启用JavaScript执行功能
            webClient.getOptions().setJavaScriptEnabled(true);

            // 创建一个新的HtmlPage对象
            HtmlPage page = webClient.getPage("https://example.com");

            // 执行JavaScript代码
            String script = "$('body').css('background-color', 'red');";
            page.executeJavaScript(script);

            // 等待JavaScript执行完成
            webClient.waitForBackgroundJavaScript(1000);

            // 输出页面的HTML内容
            System.out.println(page.asXml());
        }
    }
}