| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 4701299 |
| 27 | * @summary Keep-Alive-Timer thread management in KeepAliveCache causes memory leak |
| 28 | */ |
| 29 | import java.net.*; |
| 30 | import java.io.*; |
| 31 | |
| 32 | public class KeepAliveTimerThread { |
| 33 | static class Fetcher implements Runnable { |
| 34 | String url; |
| 35 | |
| 36 | Fetcher(String url) { |
| 37 | this.url = url; |
| 38 | } |
| 39 | |
| 40 | public void run() { |
| 41 | try { |
| 42 | InputStream in = |
| 43 | (new URL(url)).openConnection().getInputStream(); |
| 44 | byte b[] = new byte[128]; |
| 45 | int n; |
| 46 | do { |
| 47 | n = in.read(b); |
| 48 | } while (n > 0); |
| 49 | in.close(); |
| 50 | } catch (Exception x) { |
| 51 | x.printStackTrace(); |
| 52 | } |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | static class Server extends Thread { |
| 57 | ServerSocket server; |
| 58 | Server (ServerSocket server) { |
| 59 | super (); |
| 60 | this.server = server; |
| 61 | } |
| 62 | void readAll (Socket s) throws IOException { |
| 63 | byte[] buf = new byte [128]; |
| 64 | InputStream is = s.getInputStream (); |
| 65 | s.setSoTimeout(1000); |
| 66 | try { |
| 67 | while (is.read(buf) > 0) ; |
| 68 | } catch (SocketTimeoutException x) { } |
| 69 | } |
| 70 | /* |
| 71 | * Our "http" server to return a 404 |
| 72 | */ |
| 73 | public void run() { |
| 74 | try { |
| 75 | Socket s = server.accept(); |
| 76 | readAll(s); |
| 77 | |
| 78 | PrintStream out = new PrintStream( |
| 79 | new BufferedOutputStream( |
| 80 | s.getOutputStream() )); |
| 81 | |
| 82 | /* send the header */ |
| 83 | out.print("HTTP/1.1 200 OK\r\n"); |
| 84 | out.print("Content-Type: text/html; charset=iso-8859-1\r\n"); |
| 85 | out.print("Content-Length: 78\r\n"); |
| 86 | out.print("\r\n"); |
| 87 | out.print("<HTML>"); |
| 88 | out.print("<HEAD><TITLE>File Content</TITLE></HEAD>"); |
| 89 | out.print("<BODY>A dummy body.</BODY>"); |
| 90 | out.print("</HTML>"); |
| 91 | out.flush(); |
| 92 | |
| 93 | s.close(); |
| 94 | server.close(); |
| 95 | } catch (Exception e) { |
| 96 | e.printStackTrace(); |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | |
| 102 | public static void main(String args[]) throws Exception { |
| 103 | ServerSocket ss = new ServerSocket(0); |
| 104 | Server s = new Server (ss); |
| 105 | s.start(); |
| 106 | |
| 107 | String url = "http://127.0.0.1:"+ss.getLocalPort(); |
| 108 | |
| 109 | // start fetch in its own thread group |
| 110 | ThreadGroup grp = new ThreadGroup("MyGroup"); |
| 111 | |
| 112 | // http request in another thread group |
| 113 | Thread thr = new Thread(grp, new Fetcher(url)); |
| 114 | thr.start(); |
| 115 | thr.join(); |
| 116 | |
| 117 | // fetcher is done - the group should now be empty |
| 118 | if (grp.activeCount() > 0) { |
| 119 | throw new RuntimeException("Keep-alive thread started in wrong thread group"); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | } |