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/*
* Copyright (c) 2002, 2016, 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 4680160
* @summary The deprecated Thread.stop exposes un-checked JNI calls
* that result in crashes when NULL is passed into subsequent
* JNI calls.
*/
import java.net.*;
import java.io.IOException;
public class ThreadStop {
static class Server implements Runnable {
ServerSocket ss;
Server() throws IOException {
ss = new ServerSocket(0);
}
public int localPort() {
return ss.getLocalPort();
}
public void run() {
try {
Socket s = ss.accept();
} catch (IOException ioe) {
} catch (ThreadDeath x) {
} finally {
try {
ss.close();
} catch (IOException x) { }
}
}
}
public static void main(String args[]) throws Exception {
// start a server
Server svr = new Server();
Thread thr = new Thread(svr);
thr.start();
// give server time to block in ServerSocket.accept()
Thread.sleep(2000);
// "stop" the thread
thr.stop();
// give thread time to stop
Thread.sleep(2000);
// it's platform specific if Thread.stop interrupts the
// thread - on Linux/Windows most likely that thread is
// still in accept() so we connect to server which causes
// it to unblock and do JNI-stuff with a pending exception
try (Socket s = new Socket("localhost", svr.localPort())) {
} catch (IOException ioe) {
}
thr.join();
}
}
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