126 lines
3.8 KiB
Java
126 lines
3.8 KiB
Java
/*
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* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8020983 8024697
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* @summary Test verifies that jpeg writer instances are collected
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* even if destroy() or reset() methods is not invoked.
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*
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* @run main JpegWriterLeakTest
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*/
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.lang.ref.Reference;
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import java.lang.ref.ReferenceQueue;
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import java.lang.ref.WeakReference;
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import java.util.ArrayList;
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import java.util.Random;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageOutputStream;
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public class JpegWriterLeakTest {
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public static void main(String[] args) {
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final ReferenceQueue<ImageWriter> queue = new ReferenceQueue<>();
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final ArrayList<Reference<? extends ImageWriter>> refs = new ArrayList<>();
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int count = 2;
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do {
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ImageWriter writer =
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ImageIO.getImageWritersByFormatName("jpeg").next();
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final WeakReference<? extends ImageWriter> ref =
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new WeakReference<>(writer, queue);
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refs.add(ref);
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try {
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final ImageOutputStream os =
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ImageIO.createImageOutputStream(new ByteArrayOutputStream());
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writer.setOutput(os);
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writer.write(getImage());
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// NB: dispose() or reset() workarounds the problem.
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} catch (IOException e) {
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} finally {
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writer = null;
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}
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count--;
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} while (count > 0);
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System.out.println("Wait for GC...");
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final long testTimeOut = 60000L;
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final long startTime = System.currentTimeMillis();
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while (!refs.isEmpty()) {
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// check for the test timeout
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final long now = System.currentTimeMillis();
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if (now - startTime > testTimeOut) {
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System.out.println();
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throw new RuntimeException("Test FAILED.");
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}
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System.gc();
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try {
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System.out.print(".");
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Thread.sleep(1000);
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} catch (InterruptedException e) {
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};
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Reference<? extends ImageWriter> r = queue.poll();
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if (r != null) {
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System.out.println("Got reference: " + r);
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refs.remove(r);
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}
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}
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System.out.println("Test PASSED.");
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}
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private static BufferedImage getImage() {
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int width = 2500;
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int height = new Random().nextInt(2500) + 1;
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BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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Graphics2D g = image.createGraphics();
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g.setColor(Color.blue);
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g.fillRect(0, 0, width, height);
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return image;
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}
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}
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