1 /* 2 * Copyright (c) 2003, 2017, 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 4936445 27 * @summary This test verifies whether setting the order reversely between 2 spi 28 * objects removes the previous ordering that was set between the 29 * same set of spi objects. This is verified by invoking 30 * unsetOrdering() method twice consecutively with respect to the same 31 * spi objects and unsetOrdering() is supposed to return false when 32 * called for the second time. 33 * @modules java.desktop/com.sun.imageio.plugins.gif 34 * java.desktop/com.sun.imageio.plugins.png 35 */ 36 37 import javax.imageio.spi.IIORegistry; 38 import javax.imageio.spi.ImageReaderSpi; 39 import javax.imageio.spi.ServiceRegistry; 40 41 public class OrderingTest { 42 43 public OrderingTest() { 44 45 ServiceRegistry reg = IIORegistry.getDefaultInstance(); 46 ImageReaderSpi gifSpi = (ImageReaderSpi) reg.getServiceProviderByClass(com.sun.imageio.plugins.gif.GIFImageReaderSpi.class); 47 ImageReaderSpi pngSpi = (ImageReaderSpi) reg.getServiceProviderByClass(com.sun.imageio.plugins.png.PNGImageReaderSpi.class); 48 49 boolean ordered = reg.setOrdering(ImageReaderSpi.class, gifSpi, pngSpi); 50 51 ordered = reg.setOrdering(ImageReaderSpi.class, pngSpi, gifSpi); 52 53 boolean unordered = reg.unsetOrdering(ImageReaderSpi.class, gifSpi, 54 pngSpi); 55 boolean unordered1 = reg.unsetOrdering(ImageReaderSpi.class, gifSpi, 56 pngSpi); 57 58 if (unordered1) { 59 throw new RuntimeException("FAIL: Ordering 2 spi objects in the " 60 + "reverse direction does not remove the previous ordering " 61 + "set between the spi objects and hence unsetOrdering() " 62 + "returns true for the same spi objects when called consecutively"); 63 } else { 64 System.out.println("PASS"); 65 } 66 67 } 68 69 public static void main(String args[]) { 70 OrderingTest test = new OrderingTest(); 71 } 72 }