Java example source code file (bug7082443.java)

This example Java source code file (bug7082443.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, component, failed, gtk_laf_class, gtklookandfeel, gui, jcombobox, jlabel, listcellrenderer, object, override, runnable, runtimeexception, string, swing, testcombobox

The bug7082443.java Java example source code

/*
 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
 * 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/* @test
 * @bug 7082443
 * @summary JComboBox not backward compatible (with Java 6)
 * @author Pavel Porvatov
 */

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

public class bug7082443 {
    public static final String GTK_LAF_CLASS = "GTKLookAndFeel";

    public static void main(String[] args) throws Exception {
        for (UIManager.LookAndFeelInfo lookAndFeelInfo : UIManager.getInstalledLookAndFeels()) {
            if (lookAndFeelInfo.getClassName().contains(GTK_LAF_CLASS)) {
                UIManager.setLookAndFeel(lookAndFeelInfo.getClassName());

                SwingUtilities.invokeAndWait(new Runnable() {
                    @Override
                    public void run() {
                        TestComboBox testComboBox = new TestComboBox();

                        if (testComboBox.isOldRendererOpaque()) {
                            System.out.println("Passed for " + GTK_LAF_CLASS);
                        } else {
                            throw new RuntimeException("Failed for " + GTK_LAF_CLASS);
                        }
                    }
                });

                return;
            }
        }

        System.out.println(GTK_LAF_CLASS + " is not found. The test skipped");
    }

    private static class TestComboBox extends JComboBox {
        private final ListCellRenderer renderer = new ListCellRenderer() {
            @Override
            public Component getListCellRendererComponent(JList list, Object value, int index,
                                                          boolean isSelected, boolean cellHasFocus) {
                return TestComboBox.super.getRenderer().getListCellRendererComponent(list, value, index,
                        isSelected, cellHasFocus);
            }
        };

        @Override
        public ListCellRenderer getRenderer() {
            return renderer;
        }

        public boolean isOldRendererOpaque() {
            return ((JLabel) super.getRenderer()).isOpaque();
        }
    }
}