| /* |
| * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4701299 |
| * @summary Keep-Alive-Timer thread management in KeepAliveCache causes memory leak |
| */ |
| import java.net.*; |
| import java.io.*; |
| |
| public class KeepAliveTimerThread { |
| static class Fetcher implements Runnable { |
| String url; |
| |
| Fetcher(String url) { |
| this.url = url; |
| } |
| |
| public void run() { |
| try { |
| InputStream in = |
| (new URL(url)).openConnection().getInputStream(); |
| byte b[] = new byte[128]; |
| int n; |
| do { |
| n = in.read(b); |
| } while (n > 0); |
| in.close(); |
| } catch (Exception x) { |
| x.printStackTrace(); |
| } |
| } |
| } |
| |
| static class Server extends Thread { |
| ServerSocket server; |
| Server (ServerSocket server) { |
| super (); |
| this.server = server; |
| } |
| void readAll (Socket s) throws IOException { |
| byte[] buf = new byte [128]; |
| InputStream is = s.getInputStream (); |
| s.setSoTimeout(1000); |
| try { |
| while (is.read(buf) > 0) ; |
| } catch (SocketTimeoutException x) { } |
| } |
| /* |
| * Our "http" server to return a 404 |
| */ |
| public void run() { |
| try { |
| Socket s = server.accept(); |
| readAll(s); |
| |
| PrintStream out = new PrintStream( |
| new BufferedOutputStream( |
| s.getOutputStream() )); |
| |
| /* send the header */ |
| out.print("HTTP/1.1 200 OK\r\n"); |
| out.print("Content-Type: text/html; charset=iso-8859-1\r\n"); |
| out.print("Content-Length: 78\r\n"); |
| out.print("\r\n"); |
| out.print("<HTML>"); |
| out.print("<HEAD><TITLE>File Content</TITLE></HEAD>"); |
| out.print("<BODY>A dummy body.</BODY>"); |
| out.print("</HTML>"); |
| out.flush(); |
| |
| s.close(); |
| server.close(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| |
| |
| public static void main(String args[]) throws Exception { |
| ServerSocket ss = new ServerSocket(0); |
| Server s = new Server (ss); |
| s.start(); |
| |
| String url = "http://127.0.0.1:"+ss.getLocalPort(); |
| |
| // start fetch in its own thread group |
| ThreadGroup grp = new ThreadGroup("MyGroup"); |
| |
| // http request in another thread group |
| Thread thr = new Thread(grp, new Fetcher(url)); |
| thr.start(); |
| thr.join(); |
| |
| // fetcher is done - the group should now be empty |
| if (grp.activeCount() > 0) { |
| throw new RuntimeException("Keep-alive thread started in wrong thread group"); |
| } |
| } |
| |
| } |
