1 /*
   2  * Copyright (c) 2002, 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 4528585
  27  * @summary Tests whether the JPEGImageWriterSpi advertises that it is capable
  28  *          of writing images using an IndexColorModel. The test fails if an
  29  *          exception is thrown.
  30  */
  31 
  32 import java.awt.image.BufferedImage;
  33 import java.util.Iterator;
  34 
  35 import javax.imageio.ImageIO;
  36 import javax.imageio.ImageTypeSpecifier;
  37 
  38 public class CanEncodeIndexed {
  39 
  40     public static void main(String[] args) {
  41         BufferedImage img = new BufferedImage(32, 32,
  42                                               BufferedImage.TYPE_BYTE_INDEXED);
  43 
  44         ImageTypeSpecifier spec =
  45             ImageTypeSpecifier.createFromRenderedImage(img);
  46 
  47         Iterator writers = ImageIO.getImageWriters(spec, "jpeg");
  48 
  49         if (!writers.hasNext()) {
  50             throw new RuntimeException("Test failed: " +
  51                                        "no JPEG writer found for " +
  52                                        "image with IndexColorModel");
  53         }
  54     }
  55 }