--- /dev/null 2017-05-22 14:23:22.000000000 -0700 +++ new/test/javax/imageio/plugins/gif/UshortOutOfMemoryTest.java 2017-05-22 14:23:21.000000000 -0700 @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 6294363 + * @summary Test verifies that creation of tree representation of the native + * image metadata for USHORT_GRAY images does not cause the + * OutOfMemoryError + * @run main/othervm -Xms32M -Xmx32M UshortOutOfMemoryTest + */ + +import java.awt.image.BufferedImage; +import java.io.IOException; + +import javax.imageio.ImageIO; +import javax.imageio.ImageTypeSpecifier; +import javax.imageio.ImageWriteParam; +import javax.imageio.ImageWriter; +import javax.imageio.metadata.IIOMetadata; + +public class UshortOutOfMemoryTest { + private int type; + private ImageWriter w; + + public UshortOutOfMemoryTest(int type) { + this.type = type; + w = ImageIO.getImageWritersByFormatName("GIF").next(); + } + + public void testGetAsTree() { + ImageWriteParam p = w.getDefaultWriteParam(); + IIOMetadata m = + w.getDefaultImageMetadata(ImageTypeSpecifier.createFromBufferedImageType(type), p); + + String format = m.getNativeMetadataFormatName(); + System.out.println("native format: " + format); + + int count = 0; + try { + while (count < 100) { + System.out.println(" test " + count++); + m.getAsTree(format); + } + } catch (OutOfMemoryError e) { + System.gc(); + throw new RuntimeException("Test failed. Number of performed operations: " + count, e); + } + } + + + public static void main(String[] args) throws IOException { + UshortOutOfMemoryTest t = new UshortOutOfMemoryTest( + BufferedImage.TYPE_USHORT_GRAY); + t.testGetAsTree(); + } +}