90 lines
2.7 KiB
Java
90 lines
2.7 KiB
Java
/*
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* Copyright (c) 2015, 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.Frame;
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import java.awt.GraphicsConfiguration;
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import java.awt.Window;
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import static java.util.concurrent.TimeUnit.MINUTES;
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import static java.util.concurrent.TimeUnit.NANOSECONDS;
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/**
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* @test
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* @key headful
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* @bug 8138764
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*/
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public final class TreeLockDeadlock extends Frame {
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@Override
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public synchronized GraphicsConfiguration getGraphicsConfiguration() {
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return super.getGraphicsConfiguration();
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}
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@Override
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public synchronized void reshape(int x, int y, int width, int height) {
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super.reshape(x, y, width, height);
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}
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@Override
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public synchronized float getOpacity() {
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return super.getOpacity();
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}
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public static void main(final String[] args) throws Exception {
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final Window window = new TreeLockDeadlock();
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window.setSize(300, 300);
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test(window);
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}
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private static void test(final Window window) throws Exception {
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final long start = System.nanoTime();
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final long end = start + NANOSECONDS.convert(1, MINUTES);
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final Runnable r1 = () -> {
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while (System.nanoTime() < end) {
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window.setBounds(window.getBounds());
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}
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};
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final Runnable r2 = () -> {
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while (System.nanoTime() < end) {
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window.getGraphicsConfiguration();
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window.getOpacity();
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}
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};
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final Thread t1 = new Thread(r1);
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final Thread t2 = new Thread(r1);
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final Thread t3 = new Thread(r2);
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final Thread t4 = new Thread(r2);
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t1.start();
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t2.start();
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t3.start();
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t4.start();
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t1.join();
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t2.join();
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t3.join();
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t4.join();
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}
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}
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