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/*
* 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();
}
}
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