/*

 * 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.

 */

/*

  @test

  @bug 4913324

  @author Oleg Sukhodolsky: area=eventqueue

  @modules java.desktop/sun.awt

  @run main/timeout=30 PushPopTest

*/

import java.awt.*;

import java.awt.event.*;

import java.util.EmptyStackException;

import sun.awt.SunToolkit;

public class PushPopTest {

    public static Frame frame;

    public static void main(String[] args) {

        frame = new Frame("");

        frame.pack();

        Runnable dummy = new Runnable() {

                public void run() {

                    System.err.println("Dummy is here.");

                    System.err.flush();

                }

            };

        EventQueue seq = Toolkit.getDefaultToolkit().getSystemEventQueue();

        MyEventQueue1 eq1 = new MyEventQueue1();

        MyEventQueue2 eq2 = new MyEventQueue2();

        EventQueue.invokeLater(dummy);

        seq.push(eq1);

        EventQueue.invokeLater(dummy);

        eq1.push(eq2);

        EventQueue.invokeLater(dummy);

        Runnable runnable = new Runnable() {

                public void run() {

                    System.err.println("Dummy from SunToolkit");

                    System.err.flush();

                }

            };

        InvocationEvent ie = new InvocationEvent(eq2, runnable, null, false);

//        System.err.println(ie);

        SunToolkit.postEvent(SunToolkit.targetToAppContext(frame), ie);

        eq1.pop();

        frame.dispose();

    }

}

class MyEventQueue1 extends EventQueue {

    public void pop() {

        super.pop();

    }

}

class MyEventQueue2 extends EventQueue {

    protected void pop() {

        System.err.println("pop2()");

        Thread.dumpStack();

        try {

            EventQueue.invokeAndWait(new Runnable() {

                    public void run() {

                        Runnable runnable = new Runnable() {

                                public void run() {

                                    System.err.println("Dummy from pop");

                                    System.err.flush();

                                }

                             };

                        InvocationEvent ie = new InvocationEvent(MyEventQueue2.this, runnable, null, false);

                        SunToolkit.postEvent(SunToolkit.targetToAppContext(PushPopTest.frame), ie);

                        postEvent(ie);

                    }

                });

        } catch (InterruptedException ie) {

            ie.printStackTrace();

        } catch (java.lang.reflect.InvocationTargetException ie) {

            ie.printStackTrace();

        }

        super.pop();

    }

}