126 lines
4.1 KiB
Java
126 lines
4.1 KiB
Java
/*
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* Copyright (c) 2013, 2022, 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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import java.awt.FlowLayout;
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import java.awt.Robot;
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import java.lang.ref.WeakReference;
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import java.util.ArrayList;
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import java.util.List;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.JTextField;
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import javax.swing.SwingUtilities;
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import test.java.awt.regtesthelpers.Util;
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/*
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@test
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@key headful
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@bug 7079260
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@summary XInputContext leaks memory by needRecetXXIClient field
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@author Petr Pchelko
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@library ../../regtesthelpers
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@build Util
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@compile InputContextMemoryLeakTest.java
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@run main/othervm -Xmx20M InputContextMemoryLeakTest
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*/
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public class InputContextMemoryLeakTest {
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private static JFrame frame;
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private static WeakReference<JTextField> text;
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private static WeakReference<JPanel> p;
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private static JButton button;
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public static void init() throws Throwable {
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SwingUtilities.invokeAndWait(new Runnable() {
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@Override
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public void run() {
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frame = new JFrame();
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frame.setLayout(new FlowLayout());
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JPanel p1 = new JPanel();
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button = new JButton("Test");
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p1.add(button);
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frame.add(p1);
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JTextField tf = new JTextField("Text");
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text = new WeakReference<JTextField>(tf);
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JPanel jp = new JPanel(new FlowLayout());
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p = new WeakReference<JPanel>(jp);
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jp.add(tf);
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frame.add(jp);
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frame.setBounds(500, 400, 200, 200);
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frame.setVisible(true);
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}
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});
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Util.focusComponent(text.get(), 500);
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Util.clickOnComp(button, new Robot());
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//References to objects testes for memory leak are stored in Util.
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//Need to clean them
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Util.cleanUp();
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SwingUtilities.invokeAndWait(new Runnable() {
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@Override
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public void run() {
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// after this the JTextField as well as the JPanel
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// are eligible to be GC'd
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frame.remove(p.get());
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}
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});
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Util.waitForIdle(null);
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//After the next caret blink it automatically TextField references
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JTextField tf = text.get();
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if (tf != null) {
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Thread.sleep(tf.getCaret().getBlinkRate() * 2);
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tf = null; // allow to be GCed
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}
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Util.waitForIdle(null);
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try {
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assertGC();
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} finally {
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SwingUtilities.invokeAndWait(() -> frame.dispose());
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}
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}
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public static void assertGC() throws Throwable {
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List<byte[]> alloc = new ArrayList<byte[]>();
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int size = 1024 * 10;
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while (true) {
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try {
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alloc.add(new byte[size]);
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} catch (OutOfMemoryError err) {
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break;
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}
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}
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alloc = null;
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if (text.get() != null) {
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throw new Exception("Test failed: JTextField was not collected");
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}
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}
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public static void main(String args[]) throws Throwable {
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init();
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}
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}
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