/*

 * Copyright (c) 2013, 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 8012004

    @summary JINTERNALFRAME NOT BEING FINALIZED AFTER CLOSING

    @author mcherkas

    @run main InternalFrameIsNotCollectedTest

 */

import sun.awt.SunToolkit;

import javax.swing.*;

import java.awt.*;

import java.beans.PropertyVetoException;

import java.util.Date;

public class InternalFrameIsNotCollectedTest {

    public static final int maxWaitTime = 100000;

    public static final int waitTime = 5000;

    private static Robot robot;

    private static CustomInternalFrame iFrame;

    public static void sync() {

        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();

        toolkit.realSync();

    }

    public static void main(String[] args) throws Exception {

        initRobot();

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override

            public void run() {

                initUI();

                try {

                    closeInternalFrame();

                } catch (PropertyVetoException e) {

                    throw new RuntimeException(e);

                }

            }

        });

        sync();

        invokeGC();

        System.runFinalization();

        Thread.sleep(1000); // it's better to wait 1 sec now then 10 sec later

        Date startWaiting = new Date();

        synchronized (CustomInternalFrame.waiter) {

            // Sync with finalization thread.

            Date now = new Date();

            while (now.getTime() - startWaiting.getTime() < maxWaitTime && !CustomInternalFrame.finalized) {

                CustomInternalFrame.waiter.wait(waitTime);

                now = new Date();

            }

        }

        if (!CustomInternalFrame.finalized) {

            throw new RuntimeException("Closed internal frame wasn't collected");

        }

    }

    private static void initRobot() throws AWTException {

        robot = new Robot();

        robot.setAutoDelay(100);

    }

    private static void closeInternalFrame() throws PropertyVetoException {

        iFrame.setClosed(true);

        iFrame = null;

    }

    private static void initUI() {

        JFrame frame = new JFrame("Internal Frame Test");

        frame.getContentPane().setLayout(new BorderLayout());

        JDesktopPane desktopPane = new JDesktopPane();

        desktopPane.setDesktopManager(new DefaultDesktopManager());

        frame.getContentPane().add(desktopPane, BorderLayout.CENTER);

        iFrame = new CustomInternalFrame("Dummy Frame");

        iFrame.setSize(200, 200);

        iFrame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

        desktopPane.add(iFrame);

        frame.setSize(800, 600);

        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

        frame.setVisible(true);

        iFrame.setVisible(true);

    }

    private static void invokeGC() {

        System.out.println("Firing garbage collection!");

        try {

            StringBuilder sb = new StringBuilder();

            while (true) {

                sb.append("any string. some test. a little bit more text." + sb.toString());

            }

        } catch (Throwable e) {

            // do nothing

        }

    }

    public static class CustomInternalFrame extends JInternalFrame {

        public static volatile boolean finalized = false;

        public static Object waiter = new Object();

        public CustomInternalFrame(String title) {

            super(title, true, true, true, true);

        }

        protected void finalize() {

            System.out.println("Finalized!");

            finalized = true;

            waiter.notifyAll();

        }

    }

}