| /* |
| * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0, which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| package test; |
| |
| import java.io.IOException; |
| import jakarta.servlet.AsyncContext; |
| import jakarta.servlet.AsyncEvent; |
| import jakarta.servlet.AsyncListener; |
| import jakarta.servlet.ServletException; |
| import jakarta.servlet.http.HttpServlet; |
| import jakarta.servlet.http.HttpServletRequest; |
| import jakarta.servlet.http.HttpServletResponse; |
| |
| public class AsyncListenerTimeoutServlet extends HttpServlet implements AsyncListener { |
| private static StringBuffer sb = new StringBuffer(); |
| |
| public void doGet(HttpServletRequest req, HttpServletResponse res) |
| throws IOException, ServletException { |
| |
| if ("1".equals(req.getParameter("result"))) { |
| res.getWriter().println(sb.toString()); |
| sb.delete(0, sb.length()); |
| return; |
| } |
| |
| if (!req.isAsyncSupported()) { |
| throw new ServletException("Async not supported when it should"); |
| } |
| |
| AsyncContext ac = null; |
| boolean isWrap = Boolean.parseBoolean(req.getParameter("wrap")); |
| if (isWrap) { |
| ac = req.startAsync(req, res); |
| } else { |
| ac = req.startAsync(); |
| } |
| |
| ac.addListener(this); |
| } |
| |
| public void onComplete(AsyncEvent event) throws IOException { |
| // do nothing |
| } |
| |
| public void onTimeout(AsyncEvent event) throws IOException { |
| AsyncContext ac = event.getAsyncContext(); |
| ClassLoader cl = Thread.currentThread().getContextClassLoader(); |
| System.out.println("classLoader = " + cl); |
| try { |
| ac.getResponse().getWriter().println(cl.loadClass("test.MyObject").newInstance()); |
| } catch(Exception ex) { |
| throw new RuntimeException(ex); |
| } |
| ac.getRequest().setAttribute("a", "A"); |
| ac.complete(); |
| sb.append(ac.getRequest().getAttribute("a")); |
| } |
| |
| public void onError(AsyncEvent event) throws IOException { |
| // do nothing |
| } |
| |
| public void onStartAsync(AsyncEvent event) throws IOException { |
| // do nothing |
| } |
| } |