134 lines
4.1 KiB
Java
134 lines
4.1 KiB
Java
/*
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* Copyright (c) 2018, 2020, 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.EventQueue;
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import java.awt.GraphicsEnvironment;
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import java.awt.Toolkit;
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import java.lang.reflect.Method;
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import java.util.concurrent.CountDownLatch;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import sun.awt.DisplayChangedListener;
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import sun.awt.SunToolkit;
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/**
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* @test
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* @key headful
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* @bug 8207070
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* @modules java.desktop/sun.java2d
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* java.desktop/sun.awt
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* java.desktop/sun.awt.windows:open
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*/
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public final class DisplayChangesException {
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private static boolean fail;
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private static CountDownLatch go = new CountDownLatch(1);
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static final class TestThread extends Thread {
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private JFrame frame;
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private TestThread(ThreadGroup tg, String threadName) {
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super(tg, threadName);
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}
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public void run() {
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try {
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test();
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} catch (final Exception e) {
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throw new RuntimeException(e);
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}
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}
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private void test() throws Exception {
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SunToolkit.createNewAppContext();
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EventQueue.invokeAndWait(() -> {
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frame = new JFrame();
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final JButton b = new JButton();
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b.addPropertyChangeListener(evt -> {
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if (!SunToolkit.isDispatchThreadForAppContext(b)) {
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System.err.println("Wrong thread:" + currentThread());
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fail = true;
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}
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});
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frame.add(b);
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frame.setSize(100, 100);
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frame.setLocationRelativeTo(null);
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frame.pack();
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});
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go.await();
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EventQueue.invokeAndWait(() -> {
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frame.dispose();
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});
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}
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}
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public static void main(final String[] args) throws Exception {
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ThreadGroup tg0 = new ThreadGroup("ThreadGroup0");
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ThreadGroup tg1 = new ThreadGroup("ThreadGroup1");
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TestThread t0 = new TestThread(tg0, "TestThread 0");
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TestThread t1 = new TestThread(tg1, "TestThread 1");
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t0.start();
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t1.start();
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Thread.sleep(1500); // Cannot use Robot.waitForIdle
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testToolkit();
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Thread.sleep(1500);
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testGE();
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Thread.sleep(1500);
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go.countDown();
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if (fail) {
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throw new RuntimeException();
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}
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}
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private static void testGE() {
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Object ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
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if (!(ge instanceof DisplayChangedListener)) {
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return;
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}
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((DisplayChangedListener) ge).displayChanged();
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}
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private static void testToolkit() {
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final Class toolkit;
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try {
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toolkit = Class.forName("sun.awt.windows.WToolkit");
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} catch (final ClassNotFoundException ignored) {
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return;
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}
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try {
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final Method displayChanged = toolkit.getMethod("displayChanged");
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displayChanged.invoke(Toolkit.getDefaultToolkit());
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} catch (final Exception e) {
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e.printStackTrace();
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fail = true;
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}
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}
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}
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