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 

    38 import javax.imageio.ImageIO;

    39 import javax.imageio.ImageReader;

    40 import javax.imageio.stream.ImageInputStream;

    41 

    42 import com.sun.imageio.plugins.gif.GIFImageReader;

    43 import com.sun.imageio.plugins.jpeg.JPEGImageReader;

    44 import com.sun.imageio.plugins.png.PNGImageReader;

    45 

    46 public class AllowSearch {

    47     private static void test(ImageReader reader, String format)

    48         throws IOException {

    49         boolean gotISE = false;

    50         File f = null;

    51         ImageInputStream stream = null;

    52         try {

    53             f = File.createTempFile("imageio", ".tmp");

    54             stream = ImageIO.createImageInputStream(f);

    55             reader.setInput(stream, true);

    56 

    57             try {

    58                 int numImages = reader.getNumImages(true);

    59             } catch (IOException ioe) {

    60                 gotISE = false;

    61             } catch (IllegalStateException ise) {

    62                 gotISE = true;

    63             }

    64         } finally {

    65             if (stream != null) {

    66                 stream.close();

    67             }

    68 

    69             reader.dispose();

    70 

    71             if (f != null) {

    72                 Files.delete(f.toPath());

    73             }

    74         }

    75 

    76         if (!gotISE) {

    77             throw new RuntimeException("Failed to get desired exception for " +

    78                                        format + " reader!");

    79         }

    80     }

    81 

    82     public static void main(String[] args) throws IOException {

    83         ImageReader gifReader = new GIFImageReader(null);

    84         ImageReader jpegReader = new JPEGImageReader(null);

    85         ImageReader pngReader = new PNGImageReader(null);

    86 

    87         test(gifReader, "GIF");

    88         test(jpegReader, "JPEG");

    89         test(pngReader, "PNG");

    90     }

    91 }