| /* |
| * 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(); |
| } |
| } |
| } |