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 *

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 * 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

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 *

 * 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.

 *

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/*

  @test

  @summary   Tests SortingFTP for an exception caused by the tim-sort algo.

  @author    anton.tarasov: area=awt.focus

  @run       main JDK8048887

*/

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.SwingUtilities;

import java.awt.Dimension;

import java.awt.Color;

import java.awt.GridBagLayout;

import java.awt.GridBagConstraints;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.util.concurrent.CountDownLatch;

import java.util.concurrent.TimeUnit;

public class JDK8048887 {

    static volatile boolean passed = true;

    public static void main(String[] args) {

        JDK8048887 app = new JDK8048887();

        app.start();

    }

    public void start() {

        final CountDownLatch latch = new CountDownLatch(1);

        SwingUtilities.invokeLater(() -> {

                // Catch the original exception which sounds like:

                // java.lang.IllegalArgumentException: Comparison method violates its general contract!

                Thread.currentThread().setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {

                        public void uncaughtException(Thread t, Throwable e) {

                            e.printStackTrace();

                            if (e instanceof IllegalArgumentException) {

                                passed = false;

                                latch.countDown();

                            }

                        }

                    });

                TestDialog d = new TestDialog();

                // It's expected that the dialog is focused on start.

                // The listener is called after the FTP completes processing and the bug is reproduced or not.

                d.addWindowFocusListener(new WindowAdapter() {

                        public void windowGainedFocus(WindowEvent e) {

                            latch.countDown();

                        }

                });

                d.setVisible(true);

        });

        try {

            latch.await(5, TimeUnit.SECONDS);

        } catch (InterruptedException e) {

            e.printStackTrace();

        }

        if (passed)

            System.out.println("Test passed.");

        else

            throw new RuntimeException("Test failed!");

    }

}

class TestDialog extends JFrame {

    // The layout of the components reproduces the transitivity issue

    // with SortingFocusTraversalPolicy relying on the tim-sort algo.

    private static int[] Xs = new int[] {71, 23, 62, 4, 79, 39, 34, 9, 84, 58, 30, 34, 38, 15, 69, 10, 44, 95, 70, 54,

    44, 62, 77, 64, 70, 83, 31, 48, 96, 54, 40, 3, 60, 58, 3, 20, 94, 54, 26, 19, 48, 47, 12, 70, 86, 43, 71, 97, 19,

    69, 90, 22, 43, 76, 10, 60, 29, 49, 9, 9, 15, 73, 85, 80, 81, 35, 87, 43, 17, 57, 38, 44, 29, 86, 96, 15, 57, 26,

    27, 78, 26, 87, 43, 6, 4, 16, 57, 99, 32, 86, 96, 5, 50, 69, 12, 4, 36, 84, 71, 60, 22, 46, 11, 44, 87, 3, 23, 14,

    43, 25, 32, 44, 11, 18, 77, 2, 51, 87, 88, 53, 69, 37, 14, 10, 25, 73, 39, 33, 91, 51, 96, 9, 74, 66, 70, 42, 72,

    7, 82, 40, 91, 33, 83, 54, 33, 50, 83, 1, 81, 32, 66, 11, 75, 56, 53, 45, 1, 69, 46, 31, 79, 58, 12, 20, 92, 49,

    50, 90, 33, 8, 43, 93, 72, 78, 9, 56, 84, 60, 30, 39, 33, 88, 84, 56, 49, 47, 4, 90, 57, 6, 23, 96, 37, 88, 22, 79,

    35, 80, 45, 55};

    public TestDialog() {

        JPanel panel = new JPanel(new GridBagLayout());

        GridBagConstraints gbc = new GridBagConstraints();

        for (int i=0; i < Xs.length; i++) {

            gbc.gridx = Xs[i];

            gbc.gridy = 100 - gbc.gridx;

            panel.add(new MyComponent(), gbc);

        }

        getRootPane().getContentPane().add(panel);

        pack();

    }

    public static class MyComponent extends JPanel {

        private final static Dimension SIZE = new Dimension(1,1);

        public MyComponent() {

            setBackground(Color.BLACK);

            setOpaque(true);

        }

        @Override

        public Dimension getPreferredSize() {

            return SIZE;

        }

    }

}