| /* |
| * Copyright (c) 2015, 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.BorderLayout; |
| import java.awt.Dimension; |
| import java.awt.EventQueue; |
| import java.awt.GraphicsEnvironment; |
| |
| import javax.swing.JFrame; |
| import javax.swing.JLabel; |
| |
| import sun.java2d.SunGraphicsEnvironment; |
| |
| /** |
| * @test |
| * @bug 8041654 |
| * @modules java.desktop/sun.java2d |
| * @run main/othervm -Xmx80m DisplayListenerLeak |
| */ |
| public final class DisplayListenerLeak { |
| |
| private static JFrame frame; |
| private volatile static boolean failed = false; |
| |
| private static void createAndShowGUI() { |
| Thread.currentThread().setUncaughtExceptionHandler((t, e) -> { |
| e.printStackTrace(); |
| failed = true; |
| }); |
| frame = new JFrame(); |
| JLabel emptyLabel = new JLabel(""); |
| emptyLabel.setPreferredSize(new Dimension(600, 400)); |
| frame.getContentPane().add(emptyLabel, BorderLayout.CENTER); |
| frame.pack(); |
| frame.setVisible(true); |
| } |
| |
| public static void main(final String[] args) throws Exception { |
| GraphicsEnvironment ge = |
| GraphicsEnvironment.getLocalGraphicsEnvironment(); |
| if (!(ge instanceof SunGraphicsEnvironment)) { |
| return; |
| } |
| EventQueue.invokeAndWait(() -> createAndShowGUI()); |
| SunGraphicsEnvironment sge = (SunGraphicsEnvironment) ge; |
| final long startTime = System.nanoTime(); |
| while (!failed) { |
| if (System.nanoTime() - startTime > 60_000_000_000L) { |
| break; |
| } |
| System.gc(); // clear all weak references |
| EventQueue.invokeAndWait(() -> { |
| frame.setSize(frame.getHeight(), frame.getWidth()); |
| frame.pack(); |
| }); |
| EventQueue.invokeAndWait(sge::displayChanged); |
| } |
| EventQueue.invokeAndWait(frame::dispose); |
| if (failed) { |
| throw new RuntimeException(); |
| } |
| } |
| } |