8031694: [macosx] TwentyThousandTest test intermittently hangs
Reviewed-by: art, anthony
--- a/jdk/src/share/classes/java/awt/EventQueue.java Tue Feb 11 14:42:17 2014 -0800
+++ b/jdk/src/share/classes/java/awt/EventQueue.java Thu Feb 13 14:45:58 2014 +0400
@@ -1093,6 +1093,13 @@
dispatchThread = null;
}
AWTAutoShutdown.getInstance().notifyThreadFree(edt);
+ /*
+ * Event was posted after EDT events pumping had stopped, so start
+ * another EDT to handle this event
+ */
+ if (peekEvent() != null) {
+ initDispatchThread();
+ }
} finally {
pushPopLock.unlock();
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/awt/EventDispatchThread/EDTShutdownTest/EDTShutdownTest.java Thu Feb 13 14:45:58 2014 +0400
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2014, 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 8031694
+ @summary [macosx] TwentyThousandTest test intermittently hangs
+ @author Oleg Pekhovskiy
+ @run main EDTShutdownTest
+ */
+
+import java.awt.EventQueue;
+import java.awt.Toolkit;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import sun.awt.AWTAccessor;
+
+public class EDTShutdownTest {
+
+ private static boolean passed = false;
+
+ public static void main(String[] args) {
+ // Force EDT start with InvocationEvent
+ EventQueue.invokeLater(() -> {
+ // EventQueue is empty now
+ EventQueue queue = Toolkit.getDefaultToolkit()
+ .getSystemEventQueue();
+ Thread thread = AWTAccessor.getEventQueueAccessor()
+ .getDispatchThread(queue);
+ try {
+ /*
+ * Clear EventDispatchThread.doDispatch flag to break message
+ * loop in EventDispatchThread.pumpEventsForFilter()
+ */
+ Method stopDispatching = thread.getClass()
+ .getDeclaredMethod("stopDispatching", null);
+ stopDispatching.setAccessible(true);
+ stopDispatching.invoke(thread, null);
+
+ /*
+ * Post another InvocationEvent that must be handled by another
+ * instance of EDT
+ */
+ EventQueue.invokeLater(() -> {
+ passed = true;
+ });
+ }
+ catch (InvocationTargetException | NoSuchMethodException
+ | IllegalAccessException e) {
+ }
+ });
+
+ // Wait for EDT shutdown
+ EventQueue queue = Toolkit.getDefaultToolkit().getSystemEventQueue();
+ Thread thread = AWTAccessor.getEventQueueAccessor()
+ .getDispatchThread(queue);
+ try {
+ thread.join();
+
+ /*
+ * Wait for another EDT instance to handle the InvocationEvent
+ * and shutdown
+ */
+ thread = AWTAccessor.getEventQueueAccessor()
+ .getDispatchThread(queue);
+ if (thread != null) {
+ thread.join();
+ }
+ }
+ catch (InterruptedException e) {
+ }
+
+ if (passed) {
+ System.out.println("Test PASSED!");
+ }
+ else {
+ throw new RuntimeException("Test FAILED!");
+ }
+ }
+}