/* * Copyright (c) 2007, 2014, 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.*; import java.awt.image.BufferedImage; /* * @test * @summary Check that GraphicsDevice methods do not throw unexpected * exceptions in headless mode * @run main/othervm -Djava.awt.headless=true HeadlessGraphicsDevice */ public class HeadlessGraphicsDevice { public static void main(String args[]) { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); Graphics2D gd = ge.createGraphics(new BufferedImage(100, 100, BufferedImage.TYPE_4BYTE_ABGR)); GraphicsConfiguration gc = gd.getDeviceConfiguration(); GraphicsDevice gdev = gc.getDevice(); for (GraphicsConfiguration gcl : gdev.getConfigurations()) gcl.toString(); gdev.getDefaultConfiguration().toString(); gdev.getIDstring(); if (gdev.getType() != GraphicsDevice.TYPE_IMAGE_BUFFER) throw new RuntimeException("Created GraphicsDevice that should be IMAGE_BUFFER but it isn't"); } }