test/jdk/javax/swing/GroupLayout/8079640/bug8079640.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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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
 * 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.
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/*
 * @test
 * @key headful
 * @bug 8079640
 * @summary GroupLayout incorrect layout with large JTextArea
 * @author Semyon Sadetsky
 */


import javax.swing.*;
import java.awt.*;

public class bug8079640 {

    private static JFrame frame;
    private static JComponent comp2;

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

        try {
            SwingUtilities.invokeAndWait(new Runnable() {
                @Override
                public void run() {
                    frame = new JFrame("A Frame");
                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    frame.setUndecorated(true);
                    setup(frame);
                    frame.setVisible(true);
                }
            });

            test();
            System.out.println("ok");

        } finally {
            SwingUtilities.invokeLater(new Runnable() {
                @Override
                public void run() {
                    frame.dispose();
                }
            });
        }
    }

    private static void test() throws Exception {
        SwingUtilities.invokeAndWait(new Runnable() {
            @Override
            public void run() {
                if(comp2.getLocation().getY() > frame.getHeight())
                    throw new RuntimeException("GroupLayout fails: comp2 is out of the window");
            }
        });
    }


    static void setup(JFrame frame)  {
        JPanel panel = new JPanel();
        JComponent comp1 = new JLabel("Test Label 1");
        comp1.setMinimumSize(new Dimension(1000, 40000));
        comp1.setPreferredSize(new Dimension(1000, 40000));
        JScrollPane scroll = new JScrollPane(comp1);
        comp2 = new JLabel("Test Label 2");
        GroupLayout layout = new GroupLayout(panel);
        layout.setHorizontalGroup(
                layout.createParallelGroup(GroupLayout.Alignment.LEADING)
                        .addComponent(scroll)
                        .addComponent(comp2));
        layout.setVerticalGroup(
                layout.createSequentialGroup()
                        .addComponent(scroll)
                        .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(comp2));
        panel.setLayout(layout);
        frame.getContentPane().add(panel, BorderLayout.CENTER);
        frame.setSize(800, 600);
    }

}