| /* |
| * Copyright (c) 2013, 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 |
| @bug 7079254 |
| @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; |
| if (button.get() != null) { |
| throw new Exception("Test failed: JButton was not collected"); |
| } |
| } |
| |
| public static void main(String args[]) throws Throwable { |
| init(); |
| } |
| } |