1 /*

     2  * Copyright (c) 2016, 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     8167281

    27  * @summary Test verifies that accessing nth item in NodeList doesn't throw

    28  *          IndexOutOfBoundsException.

    29  * @run     main NthItemNodeListTest

    30  */

    31 

    32 import java.awt.image.BufferedImage;

    33 import java.io.ByteArrayInputStream;

    34 import java.io.ByteArrayOutputStream;

    35 import java.io.IOException;

    36 import javax.imageio.ImageIO;

    37 import javax.imageio.ImageReader;

    38 import javax.imageio.metadata.IIOMetadata;

    39 import javax.imageio.metadata.IIOMetadataFormatImpl;

    40 import javax.imageio.stream.ImageInputStream;

    41 import javax.imageio.stream.MemoryCacheImageInputStream;

    42 import org.w3c.dom.Element;

    43 import org.w3c.dom.Node;

    44 import org.w3c.dom.NodeList;

    45 

    46 public class NthItemNodeListTest {

    47 

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

    49         // Generate some trivial image and save it to a temporary array

    50         ByteArrayOutputStream tmp = new ByteArrayOutputStream();

    51         ImageIO.write(new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB),

    52                 "gif", tmp);

    53 

    54         // Read it back in

    55         ImageInputStream in = new MemoryCacheImageInputStream(

    56                 new ByteArrayInputStream(tmp.toByteArray()));

    57         ImageReader reader = ImageIO.getImageReaders(in).next();

    58         reader.setInput(in);

    59 

    60         // Retrieve standard image metadata tree

    61         IIOMetadata meta = reader.getImageMetadata(0);

    62         if (meta == null || !meta.isStandardMetadataFormatSupported()) {

    63             throw new Error("Test failure: Missing metadata");

    64         }

    65         Element root = (Element) meta.

    66                 getAsTree(IIOMetadataFormatImpl.standardMetadataFormatName);

    67 

    68         NodeList nodeList = root.

    69                 getElementsByTagName(root.getFirstChild().getNodeName());

    70         /*

    71          * Accessing the nth node should return null and not throw

    72          * IndexOutOfBoundsException.

    73          */

    74         Node n = (nodeList.item(nodeList.getLength()));

    75     }

    76 }

    77