92 lines
3.0 KiB
Java
92 lines
3.0 KiB
Java
/*
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* Copyright (c) 2004, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4979794
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* @summary A component is sometimes the next component for itself in focus policy.
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* @key headful
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*/
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import java.awt.Component;
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import java.awt.Container;
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import java.awt.FocusTraversalPolicy;
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import java.awt.Robot;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.SwingUtilities;
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public class bug4979794 {
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static JFrame fr;
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static JButton btn1;
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static JButton btn2;
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public static void main(String[] args) throws Exception {
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try {
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SwingUtilities.invokeAndWait(() -> {
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fr = new JFrame("bug4979794");
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fr.getContentPane().setLayout(null);
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JPanel p = new JPanel();
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p.setLayout(null);
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fr.getContentPane().add(p);
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btn1 = new JButton("Button 1");
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btn1.setBounds(0, 0, 200, 200);
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btn2 = new JButton("Button 2");
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btn2.setBounds(0, 0, 200, 200);
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p.add(btn1);
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p.add(btn2);
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p.setSize(200, 200);
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fr.setLocationRelativeTo(null);
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fr.setSize(300, 300);
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fr.setVisible(true);
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});
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Robot r = new Robot();
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r.waitForIdle();
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r.delay(1000);
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SwingUtilities.invokeAndWait(() -> {
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Container root = btn1.getFocusCycleRootAncestor();
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FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
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Component next1 = policy.getComponentAfter(fr, btn1);
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Component next2 = policy.getComponentAfter(fr, btn2);
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if (next1 == next2) {
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throw new RuntimeException("btn1 and btn2 have the same next Component.");
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}
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});
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} finally {
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SwingUtilities.invokeAndWait(() -> {
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if (fr != null) {
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fr.dispose();
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}
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});
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}
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}
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}
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