1 /*
   2  * Copyright (c) 2001, 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 4420318 8183341
  27  * @summary Checks that an IllegalStateException is thrown by getNumImages(true)
  28  *          when seekForwardOnly is true
  29  * @modules java.desktop/com.sun.imageio.plugins.gif
  30  *          java.desktop/com.sun.imageio.plugins.jpeg
  31  *          java.desktop/com.sun.imageio.plugins.png
  32  */
  33 
  34 import java.io.File;
  35 import java.io.IOException;
  36 import java.nio.file.Files;
  37 import java.nio.file.Path;
  38 
  39 import javax.imageio.ImageIO;
  40 import javax.imageio.ImageReader;
  41 import javax.imageio.stream.ImageInputStream;
  42 
  43 import com.sun.imageio.plugins.gif.GIFImageReader;
  44 import com.sun.imageio.plugins.jpeg.JPEGImageReader;
  45 import com.sun.imageio.plugins.png.PNGImageReader;
  46 
  47 public class AllowSearch {
  48     private static Path filePath;
  49 
  50     private static void test(ImageReader reader, String format)
  51         throws IOException {
  52         File f = File.createTempFile("imageio", ".tmp");
  53         ImageInputStream stream = ImageIO.createImageInputStream(f);
  54         reader.setInput(stream, true);
  55 
  56         boolean gotISE = false;
  57         try {
  58             int numImages = reader.getNumImages(true);
  59         } catch (IOException ioe) {
  60             gotISE = false;
  61         } catch (IllegalStateException ise) {
  62             gotISE = true;
  63         }
  64 
  65         // store the file path to be deleted
  66         filePath = f.toPath();
  67         stream.close();
  68 
  69         if (!gotISE) {
  70             throw new RuntimeException("Failed to get desired exception for " +
  71                                        format + " reader!");
  72         }
  73     }
  74 
  75     public static void main(String[] args) throws IOException {
  76         ImageReader gifReader = new GIFImageReader(null);
  77         ImageReader jpegReader = new JPEGImageReader(null);
  78         ImageReader pngReader = new PNGImageReader(null);
  79 
  80         test(gifReader, "GIF");
  81         gifReader.dispose();        
  82         Files.delete(filePath);
  83  
  84         test(jpegReader, "JPEG");
  85         jpegReader.dispose();    
  86         Files.delete(filePath); 
  87         
  88         test(pngReader, "PNG");
  89         pngReader.dispose();
  90         Files.delete(filePath); 
  91     }
  92 }
  93