/* * Copyright (c) 1999, 2019, 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.AWTEvent; import java.awt.ActiveEvent; import java.awt.EventQueue; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; /** * @test * @bug 4137796 * @summary Checks that the posting of events whose sources are not Components * does not corrupt the EventQueue. */ public class NonComponentSourcePost { public static final int COUNT = 100; public static CountDownLatch go = new CountDownLatch(COUNT); public static void main(String[] args) throws Throwable { EventQueue q = new EventQueue(); for (int i = 0; i < COUNT; i++) { q.postEvent(new NewActionEvent()); } if (!go.await(30, TimeUnit.SECONDS)) { throw new RuntimeException("Timeout"); } AWTEvent event = q.peekEvent(); if (event != null) { throw new Exception("Non null event: " + event); } if (NewActionEvent.result != NewActionEvent.sum) { throw new Exception("result: " + NewActionEvent.result + " sum: " + NewActionEvent.sum); } // Simple way to shutdown the AWT machinery Toolkit.getDefaultToolkit().getSystemEventQueue().push(q); } static class NewActionEvent extends ActionEvent implements ActiveEvent { static int counter = 1; static int sum = 0; static int result = 0; int myval; public NewActionEvent() { super("", ACTION_PERFORMED, "" + counter); myval = counter++; sum += myval; } public synchronized void dispatch() { result += myval; try { wait(100); } catch (InterruptedException e) { } go.countDown(); } } }