70 lines
2.6 KiB
Java
70 lines
2.6 KiB
Java
/*
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* Copyright (c) 1999, 2024, 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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import java.awt.BorderLayout;
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import java.awt.GridLayout;
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import java.lang.reflect.InvocationTargetException;
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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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/*
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* @test
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* @bug 4134035
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* @key headful
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* @summary Ensure default button reference is removed from the RootPane
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* when a hierarchy containing the RootPane's default button is removed
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* from the RootPane. (a memory leak)
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* @run main DefaultButtonLeak
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*/
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public class DefaultButtonLeak {
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public static void main(String[] args) throws InterruptedException, InvocationTargetException {
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SwingUtilities.invokeAndWait(() -> {
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JFrame frame = new JFrame("DefaultButtonLeak");
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try {
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JPanel bigPanel = new JPanel();
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bigPanel.setLayout(new GridLayout(10, 10));
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for (int i = 0; i < 100; i++) {
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JButton button = new JButton("Button" + i);
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bigPanel.add(button);
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if (i == 0) {
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frame.getRootPane().setDefaultButton(button);
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}
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}
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frame.add(bigPanel, BorderLayout.CENTER);
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frame.pack();
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frame.setVisible(true);
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frame.remove(bigPanel);
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if (frame.getRootPane().getDefaultButton() != null) {
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throw new RuntimeException("RootPane default button reference not removed.");
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}
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} finally {
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frame.setVisible(false);
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frame.dispose();
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}
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});
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}
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}
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