1 /* 2 * Copyright (c) 2014, 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 4991647 27 * @summary PNGMetadata.getAsTree() sets bitDepth to invalid value 28 * @run main PngDitDepthTest 29 */ 30 31 import org.w3c.dom.Node; 32 33 import javax.imageio.ImageIO; 34 import javax.imageio.ImageTypeSpecifier; 35 import javax.imageio.ImageWriter; 36 import javax.imageio.metadata.IIOInvalidTreeException; 37 import javax.imageio.metadata.IIOMetadata; 38 import java.awt.image.ColorModel; 39 import java.awt.image.SampleModel; 40 import java.util.Iterator; 41 42 public class PngDitDepthTest { 43 44 public static void main(String[] args) throws IIOInvalidTreeException { 45 46 // getting the writer for the png format 47 Iterator iter = ImageIO.getImageWritersByFormatName("png"); 48 ImageWriter writer = (ImageWriter) iter.next(); 49 50 // creating a color model 51 ColorModel colorModel = ColorModel.getRGBdefault(); 52 53 // creating a sample model 54 SampleModel sampleModel = colorModel.createCompatibleSampleModel(640, 480); 55 56 // creating a default metadata object 57 IIOMetadata metaData = writer.getDefaultImageMetadata(new ImageTypeSpecifier(colorModel, sampleModel), null); 58 String formatName = metaData.getNativeMetadataFormatName(); 59 60 // first call 61 Node metaDataNode = metaData.getAsTree(formatName); 62 try { 63 metaData.setFromTree(formatName, metaDataNode); 64 } catch (Exception ex) { 65 ex.printStackTrace(); 66 } 67 68 // second call (bitdepht is already set to an invalid value) 69 metaDataNode = metaData.getAsTree(formatName); 70 71 metaData.setFromTree(formatName, metaDataNode); 72 73 } 74 }