205fd87f2d
Makes a few intermittently failing tests more resilient to port reuse issues by ensuring they bind to the loopback address instead of the wildcard. Reviewed-by: alanb, chegar
121 lines
4.0 KiB
Java
121 lines
4.0 KiB
Java
/*
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* Copyright (c) 2012, 2019, 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 8003833
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* @summary Spurious NPE from Socket.getIn/OutputStream
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*/
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import java.io.IOException;
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import java.lang.reflect.Constructor;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.ServerSocket;
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import java.net.Socket;
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import java.util.concurrent.Phaser;
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// Racey test, will not always fail, but if it does then there is a problem.
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public class Streams {
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static final int NUM_THREADS = 100;
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static volatile boolean failed;
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static final Phaser startingGate = new Phaser(NUM_THREADS + 1);
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public static void main(String[] args) throws Exception {
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try (ServerSocket ss = new ServerSocket()) {
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InetAddress loopback = InetAddress.getLoopbackAddress();
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ss.bind(new InetSocketAddress(loopback, 0));
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runTest(OutputStreamGetter.class, ss);
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runTest(InputStreamGetter.class, ss);
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}
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if (failed)
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throw new RuntimeException("Failed, check output");
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}
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static void runTest(Class<? extends StreamGetter> klass, ServerSocket ss)
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throws Exception
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{
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final int port = ss.getLocalPort();
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final InetAddress address = ss.getInetAddress();
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Socket[] sockets = new Socket[NUM_THREADS];
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for (int i=0; i<NUM_THREADS; i++) {
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sockets[i] = address.isAnyLocalAddress()
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? new Socket("localhost", port)
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: new Socket(address, port);
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try (Socket socket = ss.accept()) {}
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}
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Constructor<? extends StreamGetter> ctr = klass.getConstructor(Socket.class);
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Thread[] threads = new Thread[NUM_THREADS];
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for (int i=0; i<NUM_THREADS; i++)
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threads[i] = ctr.newInstance(sockets[i]);
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for (int i=0; i<NUM_THREADS; i++)
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threads[i].start();
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startingGate.arriveAndAwaitAdvance();
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for (int i=0; i<NUM_THREADS; i++)
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sockets[i].close();
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for (int i=0; i<NUM_THREADS; i++)
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threads[i].join();
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}
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static abstract class StreamGetter extends Thread {
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final Socket socket;
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StreamGetter(Socket s) { socket = s; }
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@Override
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public void run() {
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try {
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startingGate.arriveAndAwaitAdvance();
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getStream();
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} catch (IOException x) {
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// OK, socket may be closed
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} catch (NullPointerException x) {
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x.printStackTrace();
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failed = true;
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}
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}
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abstract void getStream() throws IOException;
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}
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static class InputStreamGetter extends StreamGetter {
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public InputStreamGetter(Socket s) { super(s); }
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void getStream() throws IOException {
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socket.getInputStream();
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}
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}
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static class OutputStreamGetter extends StreamGetter {
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public OutputStreamGetter(Socket s) { super(s); }
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void getStream() throws IOException {
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socket.getOutputStream();
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}
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}
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}
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