70 lines
2.6 KiB
Java
70 lines
2.6 KiB
Java
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/*
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* Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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* @bug 6829503
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* @summary 1) Test Console and DeleteOnExitHook can be initialized
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* while shutdown is in progress
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* 2) Test if files that are added by the application shutdown
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* hook are deleted on exit during shutdown
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*/
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import java.io.*;
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public class ShutdownHooks {
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private static File file;
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public static void main(String[] args) throws Exception {
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if (args.length != 2) {
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throw new IllegalArgumentException("Usage: ShutdownHooks <dir> <filename>");
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}
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// Add a shutdown hook
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Runtime.getRuntime().addShutdownHook(new Cleaner());
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File dir = new File(args[0]);
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file = new File(dir, args[1]);
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// write to file
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System.out.println("writing to "+ file);
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PrintWriter pw = new PrintWriter(file);
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pw.println("Shutdown begins");
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pw.close();
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}
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public static class Cleaner extends Thread {
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public void run() {
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// register the Console's shutdown hook while the application
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// shutdown hook is running
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Console cons = System.console();
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// register the DeleteOnExitHook while the application
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// shutdown hook is running
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file.deleteOnExit();
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try {
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PrintWriter pw = new PrintWriter(file);
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pw.println("file is being deleted");
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pw.close();
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} catch (FileNotFoundException e) {
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throw new RuntimeException(e);
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}
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}
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}
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}
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