| /* |
| * Copyright (c) 2018, 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. |
| */ |
| |
| import java.awt.EventQueue; |
| import java.awt.GraphicsEnvironment; |
| import java.awt.Toolkit; |
| import java.lang.reflect.Method; |
| import java.util.concurrent.CountDownLatch; |
| |
| import javax.swing.JButton; |
| import javax.swing.JFrame; |
| |
| import sun.awt.DisplayChangedListener; |
| import sun.awt.SunToolkit; |
| |
| /** |
| * @test |
| * @key headful |
| * @bug 8207070 |
| * @modules java.desktop/sun.java2d |
| * java.desktop/sun.awt |
| */ |
| public final class DisplayChangesException { |
| |
| private static boolean fail; |
| private static CountDownLatch go = new CountDownLatch(1); |
| |
| static final class TestThread extends Thread { |
| |
| private JFrame frame; |
| |
| private TestThread(ThreadGroup tg, String threadName) { |
| super(tg, threadName); |
| } |
| |
| public void run() { |
| try { |
| test(); |
| } catch (final Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private void test() throws Exception { |
| SunToolkit.createNewAppContext(); |
| EventQueue.invokeAndWait(() -> { |
| frame = new JFrame(); |
| final JButton b = new JButton(); |
| b.addPropertyChangeListener(evt -> { |
| if (!SunToolkit.isDispatchThreadForAppContext(b)) { |
| System.err.println("Wrong thread:" + currentThread()); |
| fail = true; |
| } |
| }); |
| frame.add(b); |
| frame.setSize(100, 100); |
| frame.setLocationRelativeTo(null); |
| frame.pack(); |
| }); |
| go.await(); |
| EventQueue.invokeAndWait(() -> { |
| frame.dispose(); |
| }); |
| } |
| } |
| |
| public static void main(final String[] args) throws Exception { |
| ThreadGroup tg0 = new ThreadGroup("ThreadGroup0"); |
| ThreadGroup tg1 = new ThreadGroup("ThreadGroup1"); |
| |
| TestThread t0 = new TestThread(tg0, "TestThread 0"); |
| TestThread t1 = new TestThread(tg1, "TestThread 1"); |
| |
| t0.start(); |
| t1.start(); |
| Thread.sleep(1500); // Cannot use Robot.waitForIdle |
| testToolkit(); |
| Thread.sleep(1500); |
| testGE(); |
| Thread.sleep(1500); |
| go.countDown(); |
| |
| if (fail) { |
| throw new RuntimeException(); |
| } |
| } |
| |
| private static void testGE() { |
| Object ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); |
| if (!(ge instanceof DisplayChangedListener)) { |
| return; |
| } |
| ((DisplayChangedListener) ge).displayChanged(); |
| } |
| |
| private static void testToolkit() { |
| final Class toolkit; |
| try { |
| toolkit = Class.forName("sun.awt.windows.WToolkit"); |
| } catch (final ClassNotFoundException ignored) { |
| return; |
| } |
| try { |
| final Method displayChanged = toolkit.getMethod("displayChanged"); |
| displayChanged.invoke(Toolkit.getDefaultToolkit()); |
| } catch (final Exception e) { |
| e.printStackTrace(); |
| fail = true; |
| } |
| } |
| } |
| |