/*

 * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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.

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 */

/*

 * @test

 * @bug 4936495 8037743

 * @summary This test verifies whether deregistering an ordered spi object does

 *          not throw any exception

 * @modules java.desktop/com.sun.imageio.plugins.bmp

 *          java.desktop/com.sun.imageio.plugins.gif

 *          java.desktop/com.sun.imageio.plugins.jpeg

 *          java.desktop/com.sun.imageio.plugins.png

 */

import javax.imageio.spi.IIORegistry;

import javax.imageio.spi.ImageReaderSpi;

import javax.imageio.spi.ServiceRegistry;

public class DeregisterOrderedSpiTest {

     public DeregisterOrderedSpiTest() {

         try {

             ServiceRegistry reg = IIORegistry.getDefaultInstance();

             ImageReaderSpi gifSpi = (ImageReaderSpi) reg.getServiceProviderByClass(com.sun.imageio.plugins.gif.GIFImageReaderSpi.class);

             ImageReaderSpi pngSpi = (ImageReaderSpi) reg.getServiceProviderByClass(com.sun.imageio.plugins.png.PNGImageReaderSpi.class);

             ImageReaderSpi jpgSpi = (ImageReaderSpi) reg.getServiceProviderByClass(com.sun.imageio.plugins.jpeg.JPEGImageReaderSpi.class);

             ImageReaderSpi bmpSpi = (ImageReaderSpi) reg.getServiceProviderByClass(com.sun.imageio.plugins.bmp.BMPImageReaderSpi.class);

             boolean ordered = reg.setOrdering(ImageReaderSpi.class, pngSpi,

                                               gifSpi);

             ordered = reg.setOrdering(ImageReaderSpi.class, gifSpi, jpgSpi);

             ordered = reg.setOrdering(ImageReaderSpi.class, bmpSpi, gifSpi);

             reg.deregisterServiceProvider(gifSpi);

             System.out.println("PASS");

         } catch (Exception e) {

             System.out.println("FAIL");

             throw new RuntimeException("Deregistering a spi object involved in some "

                                        + "ordering throws the following exception: " + e.toString());

         }

     }

     public static void main(String args[]) {

         DeregisterOrderedSpiTest test = new DeregisterOrderedSpiTest();

     }

}