1 /* 2 * Copyright (c) 2007, 2014, 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 import java.awt.*; 25 import java.awt.image.BufferedImage; 26 27 /* 28 * @test 29 * @summary Check that GraphicsDevice methods do not throw unexpected 30 * exceptions in headless mode 31 * @run main/othervm -Djava.awt.headless=true HeadlessGraphicsDevice 32 */ 33 34 public class HeadlessGraphicsDevice { main(String args[])35 public static void main(String args[]) { 36 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 37 Graphics2D gd = ge.createGraphics(new BufferedImage(100, 100, BufferedImage.TYPE_4BYTE_ABGR)); 38 GraphicsConfiguration gc = gd.getDeviceConfiguration(); 39 GraphicsDevice gdev = gc.getDevice(); 40 41 for (GraphicsConfiguration gcl : gdev.getConfigurations()) 42 gcl.toString(); 43 44 gdev.getDefaultConfiguration().toString(); 45 gdev.getIDstring(); 46 47 if (gdev.getType() != GraphicsDevice.TYPE_IMAGE_BUFFER) 48 throw new RuntimeException("Created GraphicsDevice that should be IMAGE_BUFFER but it isn't"); 49 } 50 } 51