| /* |
| * Copyright (c) 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. |
| */ |
| /* |
| * @test |
| * @bug 8158325 |
| * @summary Memory leak in com.apple.laf.ScreenMenu: removed JMenuItems are still referenced |
| * @requires (os.family == "mac") |
| * @run main/timeout=300/othervm -Xmx16m ScreenMenuMemoryLeakTest |
| */ |
| import java.awt.EventQueue; |
| import java.lang.ref.WeakReference; |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.Objects; |
| |
| import javax.swing.JFrame; |
| import javax.swing.JLabel; |
| import javax.swing.JMenu; |
| import javax.swing.JMenuBar; |
| import javax.swing.JMenuItem; |
| import javax.swing.WindowConstants; |
| |
| public class ScreenMenuMemoryLeakTest { |
| |
| private static byte[] sBytes; |
| |
| private static WeakReference<JMenuItem> sMenuItem; |
| private static JFrame sFrame; |
| private static JMenu sMenu; |
| |
| public static void main(String[] args) throws InvocationTargetException, InterruptedException { |
| EventQueue.invokeAndWait(new Runnable() { |
| @Override |
| public void run() { |
| System.setProperty("apple.laf.useScreenMenuBar", "true"); |
| showUI(); |
| } |
| }); |
| |
| EventQueue.invokeAndWait(new Runnable() { |
| @Override |
| public void run() { |
| removeMenuItemFromMenu(); |
| } |
| }); |
| System.gc(); |
| System.runFinalization(); |
| JMenuItem menuItem = sMenuItem.get(); |
| EventQueue.invokeAndWait(new Runnable() { |
| @Override |
| public void run() { |
| sFrame.dispose(); |
| } |
| }); |
| if (menuItem != null) { |
| throw new RuntimeException("The menu item should have been GC-ed"); |
| } |
| } |
| |
| private static void showUI() { |
| sFrame = new JFrame(); |
| sFrame.add(new JLabel("Some dummy content")); |
| |
| JMenuBar menuBar = new JMenuBar(); |
| |
| sMenu = new JMenu("Menu"); |
| JMenuItem item = new JMenuItem("Item"); |
| sMenu.add(item); |
| |
| sMenuItem = new WeakReference<>(item); |
| |
| menuBar.add(sMenu); |
| |
| sFrame.setJMenuBar(menuBar); |
| |
| sFrame.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE); |
| sFrame.pack(); |
| sFrame.setVisible(true); |
| } |
| |
| private static void removeMenuItemFromMenu() { |
| JMenuItem menuItem = sMenuItem.get(); |
| Objects.requireNonNull(menuItem, "The menu item should still be available at this point"); |
| sMenu.remove(menuItem); |
| } |
| } |