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