| /* |
| * Copyright (c) 2014, 2017, 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 |
| * @key headful |
| * @bug 8043610 |
| * @summary Tests that JComponent invalidate, revalidate and repaint methods could |
| * be called from any thread |
| * @author Petr Pchelko |
| * @modules java.desktop/sun.awt |
| */ |
| |
| import sun.awt.SunToolkit; |
| |
| import javax.swing.*; |
| import java.awt.*; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| public class bug8043610 { |
| private static volatile JFrame frame; |
| private static volatile JComponent component; |
| |
| public static void main(String[] args) throws Exception { |
| ThreadGroup stubTG = new ThreadGroup(getRootThreadGroup(), "Stub Thread Group"); |
| ThreadGroup swingTG = new ThreadGroup(getRootThreadGroup(), "SwingTG"); |
| try { |
| Thread stubThread = new Thread(stubTG, SunToolkit::createNewAppContext); |
| stubThread.start(); |
| stubThread.join(); |
| |
| CountDownLatch startSwingLatch = new CountDownLatch(1); |
| new Thread(swingTG, () -> { |
| SunToolkit.createNewAppContext(); |
| SwingUtilities.invokeLater(() -> { |
| frame = new JFrame(); |
| component = new JLabel("Test Text"); |
| frame.add(component); |
| frame.setBounds(100, 100, 100, 100); |
| frame.setVisible(true); |
| startSwingLatch.countDown(); |
| }); |
| }).start(); |
| startSwingLatch.await(); |
| |
| AtomicReference<Exception> caughtException = new AtomicReference<>(); |
| Thread checkThread = new Thread(getRootThreadGroup(), () -> { |
| try { |
| component.invalidate(); |
| component.revalidate(); |
| component.repaint(new Rectangle(0, 0, 0, 0)); |
| } catch (Exception e) { |
| caughtException.set(e); |
| } |
| }); |
| checkThread.start(); |
| checkThread.join(); |
| |
| if (caughtException.get() != null) { |
| throw new RuntimeException("Failed. Caught exception!", caughtException.get()); |
| } |
| } finally { |
| new Thread(swingTG, () -> SwingUtilities.invokeLater(() -> { |
| if (frame != null) { |
| frame.dispose(); |
| } |
| })).start(); |
| } |
| } |
| |
| private static ThreadGroup getRootThreadGroup() { |
| ThreadGroup currentTG = Thread.currentThread().getThreadGroup(); |
| ThreadGroup parentTG = currentTG.getParent(); |
| while (parentTG != null) { |
| currentTG = parentTG; |
| parentTG = currentTG.getParent(); |
| } |
| return currentTG; |
| } |
| } |