bug6337518.java

/*
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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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/* @test
   @bug 6337518
   @summary Null Arrow Button Throws Exception in BasicComboBoxUI
   @author Anton Litvinov
*/

import javax.swing.*;
import javax.swing.plaf.basic.*;

public class bug6337518 extends BasicComboBoxUI {
    @Override
    protected JButton createArrowButton() {
        return null;
    }

    public static void main(String[] args) throws Exception {
        SwingUtilities.invokeAndWait(new Runnable() {
            @Override
            public void run() {
                JComboBox comboBox = new JComboBox();
                comboBox.setUI(new bug6337518());
            }
        });
    }
}