| /* |
| * Copyright (c) 2010, 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. |
| */ |
| |
| /* |
| @test |
| @bug 6424157 |
| @author Artem Ananiev: area=eventqueue |
| @run main PreserveDispatchThread |
| */ |
| |
| import java.awt.*; |
| import java.awt.event.*; |
| |
| public class PreserveDispatchThread { |
| |
| private static volatile Frame f; |
| private static volatile Dialog d; |
| |
| private static volatile boolean isEDT = true; |
| |
| public static void main(String[] args) throws Exception { |
| f = new Frame("F"); |
| f.setSize(320, 340); |
| f.setLocationRelativeTo(null); |
| f.setVisible(true); |
| |
| try { |
| test1(); |
| if (!isEDT) { |
| throw new RuntimeException("Test FAILED (test1): event dispatch thread is changed"); |
| } |
| |
| test2(); |
| if (!isEDT) { |
| throw new RuntimeException("Test FAILED (test2): event dispatch thread is changed"); |
| } |
| |
| test3(); |
| if (!isEDT) { |
| throw new RuntimeException("Test FAILED (test3): event dispatch thread is changed"); |
| } |
| } finally { |
| if (d != null) { |
| d.dispose(); |
| } |
| f.dispose(); |
| } |
| } |
| |
| /* |
| * Tests that push/pop doesn't change the dispatch thread if |
| * called on EDT. |
| */ |
| private static void test1() throws Exception { |
| EventQueue.invokeAndWait(new Runnable() { |
| @Override |
| public void run() { |
| TestEventQueue teq = new TestEventQueue(); |
| EventQueue seq = Toolkit.getDefaultToolkit().getSystemEventQueue(); |
| try { |
| seq.push(teq); |
| d = new TestDialog(); |
| d.setVisible(true); |
| checkEDT(); |
| } finally { |
| teq.pop(); |
| } |
| checkEDT(); |
| } |
| }); |
| } |
| |
| /* |
| * Tests that push/pop doesn't change the dispatch thread if |
| * called on the main thread. |
| */ |
| private static void test2() throws Exception { |
| TestEventQueue teq = new TestEventQueue(); |
| EventQueue seq = Toolkit.getDefaultToolkit().getSystemEventQueue(); |
| try { |
| seq.push(teq); |
| EventQueue.invokeAndWait(new Runnable() { |
| @Override |
| public void run() { |
| checkEDT(); |
| d = new TestDialog(); |
| d.setVisible(true); |
| checkEDT(); |
| } |
| }); |
| } finally { |
| teq.pop(); |
| } |
| } |
| |
| private static final Object test3Lock = new Object(); |
| private static boolean test3Sync = false; |
| |
| /* |
| * A complex test: several nested invokeLater() are called and |
| * in every runnable a check for EDT is performed. At the ent |
| * of the test we wait for all the runnables to be processed |
| * and the dialog is disposed; otherwise the last EDT check can |
| * be later than this method returns and the whole test is passed. |
| */ |
| private static void test3() throws Exception { |
| EventQueue.invokeLater(new Runnable() { |
| @Override |
| public void run() { |
| d = new Dialog(f, true); |
| d.setSize(240, 180); |
| d.setLocationRelativeTo(f); |
| EventQueue.invokeLater(new Runnable() { |
| @Override |
| public void run() { |
| d.setVisible(true); |
| checkEDT(); |
| } |
| }); |
| EventQueue.invokeLater(new Runnable() { |
| @Override |
| public void run() { |
| TestEventQueue teq = new TestEventQueue(); |
| EventQueue seq = Toolkit.getDefaultToolkit().getSystemEventQueue(); |
| try { |
| seq.push(teq); |
| checkEDT(); |
| EventQueue.invokeLater(new Runnable() { |
| @Override |
| public void run() { |
| d.dispose(); |
| checkEDT(); |
| synchronized (test3Lock) { |
| test3Sync = true; |
| test3Lock.notify(); |
| } |
| } |
| }); |
| } finally { |
| teq.pop(); |
| } |
| checkEDT(); |
| } |
| }); |
| checkEDT(); |
| } |
| }); |
| synchronized (test3Lock) { |
| while (!test3Sync) { |
| try { |
| test3Lock.wait(); |
| } catch (InterruptedException ie) { |
| break; |
| } |
| } |
| } |
| // Make sure all the nested invokeLater/invokeAndWait are processed |
| EventQueue.invokeAndWait(new Runnable() { |
| @Override |
| public void run() { |
| } |
| }); |
| } |
| |
| private static void checkEDT() { |
| isEDT = isEDT && EventQueue.isDispatchThread(); |
| } |
| |
| private static class TestEventQueue extends EventQueue { |
| public TestEventQueue() { |
| super(); |
| } |
| public void pop() { |
| super.pop(); |
| } |
| } |
| |
| private static class TestDialog extends Dialog { |
| private volatile boolean dialogShown = false; |
| private volatile boolean paintCalled = false; |
| public TestDialog() { |
| super(f, true); |
| setSize(240, 180); |
| setLocationRelativeTo(f); |
| addComponentListener(new ComponentAdapter() { |
| @Override |
| public void componentShown(ComponentEvent e) { |
| if (paintCalled) { |
| dispose(); |
| } |
| dialogShown = true; |
| } |
| }); |
| } |
| @Override |
| public void paint(Graphics g) { |
| if (dialogShown) { |
| dispose(); |
| } |
| paintCalled = true; |
| } |
| } |
| |
| } |