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
32import java.awt.image.BufferedImage;
33import java.io.ByteArrayInputStream;
34import java.io.ByteArrayOutputStream;
35import java.io.IOException;
36import javax.imageio.ImageIO;
37import javax.imageio.ImageReader;
38import javax.imageio.metadata.IIOMetadata;
39import javax.imageio.metadata.IIOMetadataFormatImpl;
40import javax.imageio.stream.ImageInputStream;
41import javax.imageio.stream.MemoryCacheImageInputStream;
42import org.w3c.dom.Element;
43import org.w3c.dom.Node;
44import org.w3c.dom.NodeList;
45
46public 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
78