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 Element.getElementsByTagName("*") is not empty 28 * for valid image. 29 * @run main GetElementsByTagNameTest 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 44 public class GetElementsByTagNameTest { 45 46 public static void main(String[] args) throws IOException { 47 // Generate some trivial image and save it to a temporary array 48 ByteArrayOutputStream tmp = new ByteArrayOutputStream(); 49 ImageIO.write(new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB), 50 "gif", tmp); 51 52 // Read the stream 53 ImageInputStream in = new MemoryCacheImageInputStream( 54 new ByteArrayInputStream(tmp.toByteArray())); 55 ImageReader reader = ImageIO.getImageReaders(in).next(); 56 reader.setInput(in); 57 58 // Retrieve standard image metadata tree 59 IIOMetadata meta = reader.getImageMetadata(0); 60 if (meta == null || !meta.isStandardMetadataFormatSupported()) { 61 throw new Error("Test failure: Missing metadata"); 62 } 63 Element root = (Element) meta. 64 getAsTree(IIOMetadataFormatImpl.standardMetadataFormatName); 65 66 // Test getElementsByTagName("*") 67 if (root.getElementsByTagName("*").getLength() == 0) { 68 throw new RuntimeException("getElementsByTagName(\"*\") returns" 69 + " nothing"); 70 } 71 } 72 } 73