1 /*
   2  * Copyright (c) 2005, 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 6284538
  27  * @summary Test verifies whether IllegalStateException is thrown if the output
  28  *          stream have not set to the GIF image writer instance
  29  */
  30 
  31 import java.io.IOException;
  32 
  33 import javax.imageio.ImageIO;
  34 import javax.imageio.ImageWriteParam;
  35 import javax.imageio.ImageWriter;
  36 import javax.imageio.metadata.IIOMetadata;
  37 
  38 public class PrepareWriteSequenceTest {
  39     public static void main(String[] args) throws IOException {
  40         String format = "GIF";
  41         ImageWriter writer = ImageIO.getImageWritersByFormatName(format).next();
  42 
  43         ImageWriteParam param = writer.getDefaultWriteParam();
  44 
  45         IIOMetadata streamMetadata = writer.getDefaultStreamMetadata(param);
  46 
  47         boolean gotException = false;
  48         try {
  49             writer.prepareWriteSequence(streamMetadata);
  50         } catch (IllegalStateException e) {
  51             gotException = true;
  52             System.out.println("Test passed.");
  53             e.printStackTrace(System.out);
  54         }
  55 
  56         if (!gotException) {
  57             throw new RuntimeException("Test failed.");
  58         }
  59     }
  60 }