1 /* 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8007146 27 * @summary [macosx] Setting a display mode crashes JDK under VNC 28 * @author Alexander Scherbatiy 29 * @run main CheckDisplayModes 30 */ 31 import java.awt.DisplayMode; 32 import java.awt.GraphicsDevice; 33 import java.awt.GraphicsEnvironment; 34 35 public class CheckDisplayModes { 36 37 public static void main(String[] args) { 38 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 39 GraphicsDevice graphicDevice = ge.getDefaultScreenDevice(); 40 DisplayMode defaultDisplayMode = graphicDevice.getDisplayMode(); 41 checkDisplayMode(defaultDisplayMode); 42 graphicDevice.setDisplayMode(defaultDisplayMode); 43 44 DisplayMode[] displayModes = graphicDevice.getDisplayModes(); 45 boolean isDefaultDisplayModeIncluded = false; 46 for (DisplayMode displayMode : displayModes) { 47 checkDisplayMode(displayMode); 48 graphicDevice.setDisplayMode(displayMode); 49 if (defaultDisplayMode.equals(displayMode)) { 50 isDefaultDisplayModeIncluded = true; 51 } 52 } 53 54 if (!isDefaultDisplayModeIncluded) { 55 throw new RuntimeException("Default display mode is not included"); 56 } 57 } 58 59 static void checkDisplayMode(DisplayMode displayMode) { 60 if (displayMode == null || displayMode.getWidth() <= 1 || displayMode.getHeight() <= 1) { 61 throw new RuntimeException("invalid display mode"); 62 } 63 } 64 }