/*
* Copyright (c) 2009, 2011, 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
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* questions.
*/
/*
* @bug 6829503
* @summary 1) Test Console and DeleteOnExitHook can be initialized
* while shutdown is in progress
* 2) Test if files that are added by the application shutdown
* hook are deleted on exit during shutdown
*/
import java.io.*;
public class ShutdownHooks {
private static File file;
public static void main(String[] args) throws Exception {
if (args.length != 2) {
throw new IllegalArgumentException("Usage: ShutdownHooks <dir> <filename>");
}
// Add a shutdown hook
Runtime.getRuntime().addShutdownHook(new Cleaner());
File dir = new File(args[0]);
file = new File(dir, args[1]);
// write to file
System.out.println("writing to "+ file);
try (PrintWriter pw = new PrintWriter(file)) {
pw.println("Shutdown begins");
}
}
public static class Cleaner extends Thread {
public void run() {
// register the Console's shutdown hook while the application
// shutdown hook is running
Console cons = System.console();
// register the DeleteOnExitHook while the application
// shutdown hook is running
file.deleteOnExit();
try (PrintWriter pw = new PrintWriter(file)) {
pw.println("file is being deleted");
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
}
}
}
}