ee040e4be2
Fixes a batch of tests that were observed failing intermittently. Reviewed-by: chegar, vtewari
86 lines
2.9 KiB
Java
86 lines
2.9 KiB
Java
/*
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* Copyright (c) 2001, 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 4476378
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* @library /test/lib
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* @summary Check that SO_REUSEADDR allows a server to restart
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* after a crash.
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* @run main Restart
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* @run main/othervm -Dsun.net.useExclusiveBind Restart
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* @run main/othervm -Dsun.net.useExclusiveBind=true Restart
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* @run main/othervm -Djava.net.preferIPv4Stack=true Restart
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* @run main/othervm -Dsun.net.useExclusiveBind
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* -Djava.net.preferIPv4Stack=true Restart
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* @run main/othervm -Dsun.net.useExclusiveBind=true
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* -Djava.net.preferIPv4Stack=true Restart
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*/
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import java.net.*;
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import jdk.test.lib.net.IPSupport;
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public class Restart {
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/*
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* Test that a server can bind to the same port after
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* a crash -- ie: while previous connection still in
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* TIME_WAIT state we should be able to re-bind if
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* SO_REUSEADDR is enabled.
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*/
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public static void main(String args[]) throws Exception {
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IPSupport.throwSkippedExceptionIfNonOperational();
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InetAddress localHost = InetAddress.getLocalHost();
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ServerSocket ss = new ServerSocket(0, 0, localHost);
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Socket s1 = null, s2 = null;
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try {
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int port = ss.getLocalPort();
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s1 = new Socket(localHost, port);
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s2 = ss.accept();
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// close server socket and the accepted connection
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ss.close();
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s2.close();
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ss = new ServerSocket();
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ss.bind( new InetSocketAddress(localHost, port) );
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ss.close();
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// close the client socket
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s1.close();
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} catch (BindException be) {
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if (System.getProperty("sun.net.useExclusiveBind") != null) {
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// exclusive bind, expected exception
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} else {
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throw be;
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}
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} finally {
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if (ss != null) ss.close();
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if (s1 != null) s1.close();
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if (s2 != null) s2.close();
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}
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}
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}
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