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/*
* Copyright (c) 2021, 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 8278339
* @summary Test that ServerSocket::isClosed returns true after async close
*/
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
public class IsClosedAfterAsyncClose {
private static final int ITERATIONS = 100;
public static void main(String[] args) throws Exception {
for (int i = 0; i < ITERATIONS; i++) {
System.out.printf("Test %d...%n", i);
// create listener bound to the loopback address
ServerSocket listener = new ServerSocket();
InetAddress loopback = InetAddress.getLoopbackAddress();
listener.bind(new InetSocketAddress(loopback, 0));
// task to close listener after a delay
Runnable closeListener = () -> {
try {
Thread.sleep(100);
listener.close();
} catch (Exception e) {
e.printStackTrace();
}
};
// main thread blocks in accept. When listener is closed then accept
// should wakeup with an IOException and isClosed should be true.
try (listener) {
Thread closer = new Thread(closeListener);
closer.start();
try {
while (true) {
Socket s = listener.accept();
// close spurious connection
s.close();
}
} catch (IOException ioe) {
if (!listener.isClosed()) {
throw new RuntimeException("isClosed returned false!!");
}
} finally {
closer.join();
}
}
}
}
}
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