/* * Copyright (c) 2017, 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.event.AWTEventListener; import java.util.EventListener; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import javax.swing.event.EventListenerList; /** * @test * @bug 5031664 * @summary EventListenerList.getXXX should always return up to date data */ public final class GetUpToDateData { static final EventListenerList listeners = new EventListenerList(); static final EventListener o1 = new EventListener() { }; static final AWTEventListener o2 = event -> { }; public static void main(final String[] args) throws Exception { CountDownLatch go = new CountDownLatch(3); Thread t1 = new Thread(() -> { try { // Time to warm-up t3, t4, t5 Thread.sleep(2000); } catch (InterruptedException e) { } listeners.add(EventListener.class, o1); }); Thread t2 = new Thread(() -> { try { // Time to warm-up t3, t4, t5 Thread.sleep(2000); } catch (InterruptedException e) { } listeners.add(AWTEventListener.class, o2); }); Thread t3 = new Thread(() -> { while (listeners.getListenerCount() != 2) { } go.countDown(); }); Thread t4 = new Thread(() -> { while (listeners.getListeners(EventListener.class).length != 1 || listeners.getListeners(EventListener.class)[0] != o1) { } go.countDown(); }); Thread t5 = new Thread(() -> { while (listeners.getListeners(AWTEventListener.class).length != 1 || listeners.getListeners(AWTEventListener.class)[0] != o2) { } go.countDown(); }); t1.setDaemon(true); t2.setDaemon(true); t3.setDaemon(true); t4.setDaemon(true); t5.setDaemon(true); t1.start(); t2.start(); t3.start(); t4.start(); t5.start(); if (!go.await(10, TimeUnit.SECONDS)) { throw new RuntimeException("The test hangs"); } } }