--- /dev/null 2018-06-14 19:00:15.000000000 -0700 +++ new/test/jdk/javax/swing/GraphicsConfigNotifier/TestSingleScreenGConfigNotify.java 2018-06-14 19:00:14.000000000 -0700 @@ -0,0 +1,84 @@ +/* + * 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.GraphicsConfiguration; +import java.util.Objects; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.TimeUnit; + +import javax.swing.JButton; +import javax.swing.JFrame; + +/** + * @test + * @key headful + * @bug 8201552 + * @summary Verifies if graphicsConfiguration property notification is sent + * when frame is shown on the screen. + * @run main TestSingleScreenGConfigNotify + * @run main/othervm -Dsun.java2d.uiScale=2.25 TestSingleScreenGConfigNotify + */ +public final class TestSingleScreenGConfigNotify { + + private static String name = "graphicsConfiguration"; + private static CountDownLatch go = new CountDownLatch(1); + private static JFrame frame; + private static GraphicsConfiguration after; + private static GraphicsConfiguration before; + private static JButton button; + + public static void main(final String[] args) throws Exception { + EventQueue.invokeAndWait(() -> { + frame = new JFrame(); + + frame.setSize(300,300); + frame.setLocationRelativeTo(null); + button = new JButton(); + button.addPropertyChangeListener(evt -> { + if (evt.getPropertyName().equals(name)) { + go.countDown(); + } + }); + + before = button.getGraphicsConfiguration(); + + frame.add(button); + frame.setVisible(true); + }); + + boolean called = go.await(10, TimeUnit.SECONDS); + + EventQueue.invokeAndWait(() -> { + after = button.getGraphicsConfiguration(); + frame.dispose(); + }); + + if (Objects.equals(before, after) && called) { + throw new RuntimeException("propertyChange() should not be called"); + } + if (!Objects.equals(before, after) && !called) { + throw new RuntimeException("propertyChange() should be called"); + } + } +}