Browser Logicファンクション構造

import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.simple.JSONObject;
import org.openqa.selenium.chrome.ChromeDriver;
import com.catalyst.browserlogic.SeleniumHandler;
public class BrowserlessExample implements SeleniumHandler {
	private static final Logger LOGGER = Logger.getLogger(SeleniumExample.class.getName());
	JSONObject responseData = new JSONObject();
	@Override
	@SuppressWarnings("unchecked")
	public void runner(HttpServletRequest request, HttpServletResponse response,ChromeDriver driver) throws Exception {
		try {
			//呼び出しが行われたエンドポイントとメソッドを取得する
			String url = request.getRequestURI();
			String method = request.getMethod();
			driver.get("https://www.example.com");
			responseData.put("message", "Title of the page "+driver.getTitle());
			//クライアントにレスポンスを返す
			response.setContentType("application/json");
			response.getWriter().write(responseData.toString());
			response.setStatus(200);
		} catch (Exception e) {
		//アクションがログに記録されます。Catalyst Logsからログを確認できます。
			LOGGER.log(Level.SEVERE, "Exception in SeleniumExample", e);
			responseData.put("error", "Internal server error occurred. Please try again in some time.");
			response.getWriter().write(responseData.toString());
			response.setStatus(500);
		}
	}
}

module.exports.puppeteer = async (request, response, page) => {
    await page.goto('https://example.com/',{waitUntil: "domcontentloaded"});
    const pageTitle = await page.title();
    response.setHeader('Content-Type', 'application/json');
    response.write(JSON.stringify({ output: pageTitle }));
    response.end();
};