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 4936495 8037743
  27  * @summary This test verifies whether deregistering an ordered spi object does
  28  *          not throw any exception
  29  * @modules java.desktop/com.sun.imageio.plugins.bmp
  30  *          java.desktop/com.sun.imageio.plugins.gif
  31  *          java.desktop/com.sun.imageio.plugins.jpeg
  32  *          java.desktop/com.sun.imageio.plugins.png
  33  */
  34 
  35 import javax.imageio.spi.IIORegistry;
  36 import javax.imageio.spi.ImageReaderSpi;
  37 import javax.imageio.spi.ServiceRegistry;
  38 
  39 public class DeregisterOrderedSpiTest {
  40 
  41      public DeregisterOrderedSpiTest() {
  42 
  43          try {
  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              ImageReaderSpi jpgSpi = (ImageReaderSpi) reg.getServiceProviderByClass(com.sun.imageio.plugins.jpeg.JPEGImageReaderSpi.class);
  49              ImageReaderSpi bmpSpi = (ImageReaderSpi) reg.getServiceProviderByClass(com.sun.imageio.plugins.bmp.BMPImageReaderSpi.class);
  50 
  51              boolean ordered = reg.setOrdering(ImageReaderSpi.class, pngSpi,
  52                                                gifSpi);
  53 
  54              ordered = reg.setOrdering(ImageReaderSpi.class, gifSpi, jpgSpi);
  55              ordered = reg.setOrdering(ImageReaderSpi.class, bmpSpi, gifSpi);
  56              reg.deregisterServiceProvider(gifSpi);
  57              System.out.println("PASS");
  58 
  59          } catch (Exception e) {
  60              System.out.println("FAIL");
  61              throw new RuntimeException("Deregistering a spi object involved in some "
  62                                         + "ordering throws the following exception: " + e.toString());
  63          }
  64      }
  65 
  66      public static void main(String args[]) {
  67          DeregisterOrderedSpiTest test = new DeregisterOrderedSpiTest();
  68      }
  69 }