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/*
* Copyright (c) 2013, 2016, 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.
*/
import java.awt.AWTException;
import java.awt.FlowLayout;
import java.awt.Robot;
import java.lang.ref.Reference;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import test.java.awt.regtesthelpers.Util;
/*
@test
@key headful
@bug 7079254 8163261
@summary Toolkit eventListener leaks memory
@library ../regtesthelpers
@build Util
@compile LWDispatcherMemoryLeakTest.java
@run main/othervm -Xmx10M LWDispatcherMemoryLeakTest
*/
public class LWDispatcherMemoryLeakTest {
private static JFrame frame;
private static WeakReference<JButton> button;
private static WeakReference<JPanel> p;
public static void init() throws Throwable {
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
frame = new JFrame();
frame.setLayout(new FlowLayout());
button = new WeakReference<JButton>(new JButton("Text"));
p = new WeakReference<JPanel>(new JPanel(new FlowLayout()));
p.get().add(button.get());
frame.add(p.get());
frame.setBounds(500, 400, 200, 200);
frame.setVisible(true);
}
});
Util.waitTillShown(button.get());
Util.clickOnComp(button.get(), new Robot());
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
frame.remove(p.get());
}
});
Util.waitForIdle(null);
assertGC();
}
public static void assertGC() throws Throwable {
List<byte[]> alloc = new ArrayList<byte[]>();
int size = 10 * 1024;
while (true) {
try {
alloc.add(new byte[size]);
} catch (OutOfMemoryError err) {
break;
}
}
alloc = null;
String leakObjs = "";
if (button.get() != null) {
leakObjs = "JButton";
}
if (p.get() != null) {
leakObjs += " JPanel";
}
if (leakObjs != "") {
throw new Exception("Test failed: " + leakObjs + " not collected");
}
}
public static void main(String args[]) throws Throwable {
init();
}
}
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