123 lines
3.8 KiB
Java
123 lines
3.8 KiB
Java
/*
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* Copyright (c) 1998, 2024, 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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/* @test
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* @bug 4078566 6658398
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* @requires (os.family == "linux")
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @summary Test for a memory leak in Image.
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* @run main/manual MemoryLeakTest
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*/
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import java.awt.Color;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Image;
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import java.awt.event.ComponentEvent;
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import java.awt.event.ComponentListener;
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public class MemoryLeakTest {
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private static final String INSTRUCTIONS =
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"""
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Do the following steps on Unix platforms.
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Maximize and minimize the Memory Leak Test window.
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Execute the following after minimize.
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ps -al | egrep -i 'java|PPID'
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Examine the size of the process under SZ.
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Maximize and minimize the Memory Leak Test window again.
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Execute the following after minimize.
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ps -al | egrep -i 'java|PPID'
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Examine the size of the process under SZ.
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If the two SZ values are the same, plus or minus one,
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then click Pass, else click Fail.
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""";
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public static void main(String[] args) throws Exception {
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PassFailJFrame
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.builder()
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.title("MemoryLeakTest Instructions")
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.instructions(INSTRUCTIONS)
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.rows(15)
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.columns(40)
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.testUI(MemoryLeak::new)
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.build()
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.awaitAndCheck();
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}
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}
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class MemoryLeak extends Frame implements ComponentListener {
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private Image osImage;
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public MemoryLeak() {
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super("Memory Leak Test");
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setSize(200, 200);
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addComponentListener(this);
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}
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public static void main(String[] args) {
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new MemoryLeak().start();
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}
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public void start() {
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setVisible(true);
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}
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public void paint(Graphics g) {
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if (osImage != null) {
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g.drawImage(osImage, 0, 0, this);
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}
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}
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public void update(Graphics g) {
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paint(g);
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}
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public void componentResized(ComponentEvent e) {
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Image oldimage = osImage;
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osImage = createImage(getSize().width, getSize().height);
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Graphics g = osImage.getGraphics();
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if (oldimage != null) {
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g.drawImage(oldimage, 0, 0, getSize().width, getSize().height, this);
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oldimage.flush();
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} else {
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g.setColor(Color.blue);
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g.drawLine(0, 0, getSize().width, getSize().height);
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}
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g.dispose();
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}
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public void componentMoved(ComponentEvent e) {}
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public void componentShown(ComponentEvent e) {
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osImage = createImage(getSize().width, getSize().height);
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Graphics g = osImage.getGraphics();
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g.setColor(Color.blue);
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g.drawLine(0, 0, getSize().width, getSize().height);
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g.dispose();
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}
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public void componentHidden(ComponentEvent e) {}
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}
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