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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * 2 along with this work; if not, write to the Free Software Foundation,

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import java.awt.Color;

import java.awt.DisplayMode;

import java.awt.Frame;

import java.awt.GraphicsDevice;

import java.awt.GraphicsEnvironment;

/**

 * @test

 * @bug 8019587

 * @author Sergey Bylokhov

 * @library ../../../lib/testlibrary/

 * @build ExtendedRobot

 * @run main IncorrectDisplayModeExitFullscreen

 */

public class IncorrectDisplayModeExitFullscreen {

    static ExtendedRobot robot;

    public static void main(final String[] args) {

        final GraphicsDevice[] devices =

                GraphicsEnvironment.getLocalGraphicsEnvironment()

                                   .getScreenDevices();

        if (devices.length < 2 || devices[0].getDisplayModes().length < 2

                || !devices[0].isFullScreenSupported()

                || !devices[1].isFullScreenSupported()) {

            System.err.println("Testcase is not applicable");

            return;

        }

        final DisplayMode defaultDM = devices[0].getDisplayMode();

        final DisplayMode[] dms = devices[0].getDisplayModes();

        DisplayMode nonDefaultDM = null;

        for (final DisplayMode dm : dms) {

            if (!dm.equals(defaultDM)) {

                nonDefaultDM = dm;

                break;

            }

        }

        if (nonDefaultDM == null) {

            System.err.println("Testcase is not applicable");

            return;

        }

        try {

            robot = new ExtendedRobot();

        }catch(Exception ex) {

            ex.printStackTrace();

            throw new RuntimeException("Unexpected failure");

        }

        final Frame frame = new Frame();

        frame.setBackground(Color.GREEN);

        frame.setUndecorated(true);

        try {

            devices[0].setFullScreenWindow(frame);

            sleep();

            devices[0].setDisplayMode(nonDefaultDM);

            sleep();

            devices[1].setFullScreenWindow(frame);

            sleep();

            if (!defaultDM.equals(devices[0].getDisplayMode())) {

                throw new RuntimeException("DisplayMode is not restored");

            }

        } finally {

            // cleaning up

            devices[0].setFullScreenWindow(null);

            devices[1].setFullScreenWindow(null);

            frame.dispose();

        }

    }

    private static void sleep() {

        robot.waitForIdle(1500);

    }

}