/*
* Copyright (c) 2007, 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.
*
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*/
/* @test
* @bug 6524172
* @summary Invoking wakeup on closed Selector can throw NPE if close resets interrupt status
*/
import java.nio.channels.Selector;
import java.io.IOException;
public class WakeupAfterClose {
public static void main(String[] args) throws Exception {
final Selector sel = Selector.open();
Runnable r = new Runnable() {
public void run() {
try {
sel.select();
} catch (IOException x) {
x.printStackTrace();
}
}
};
// start thread to block in Selector
Thread t = new Thread(r);
t.start();
// give thread time to start
Thread.sleep(1000);
// interrupt, close, and wakeup is the magic sequence to provoke the NPE
t.interrupt();
sel.close();
sel.wakeup();
}
}