--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/nio/channels/AsynchronousChannelGroup/AsExecutor.java Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2008-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+import java.nio.channels.AsynchronousChannelGroup;
+import java.util.concurrent.*;
+
+/**
+ * Test that arbitrary tasks can be submitted to a channel group's thread pool.
+ */
+
+public class AsExecutor {
+
+ public static void main(String[] args) throws Exception {
+ // create channel groups
+ ThreadFactory factory = new PrivilegedThreadFactory();
+ AsynchronousChannelGroup group1 = AsynchronousChannelGroup
+ .withFixedThreadPool(5, factory);
+ AsynchronousChannelGroup group2 = AsynchronousChannelGroup
+ .withCachedThreadPool(Executors.newCachedThreadPool(factory), 0);
+
+ try {
+ // execute simple tasks
+ testSimpleTask(group1);
+ testSimpleTask(group2);
+
+ // install security manager and test again
+ System.setSecurityManager( new SecurityManager() );
+ testSimpleTask(group1);
+ testSimpleTask(group2);
+
+ // attempt to execute tasks that run with only frames from boot
+ // class loader on the stack.
+ testAttackingTask(group1);
+ testAttackingTask(group2);
+ } finally {
+ group1.shutdown();
+ group2.shutdown();
+ }
+ }
+
+ static void testSimpleTask(AsynchronousChannelGroup group) throws Exception {
+ Executor executor = (Executor)group;
+ final CountDownLatch latch = new CountDownLatch(1);
+ executor.execute(new Runnable() {
+ public void run() {
+ latch.countDown();
+ }
+ });
+ latch.await();
+ }
+
+ static void testAttackingTask(AsynchronousChannelGroup group) throws Exception {
+ Executor executor = (Executor)group;
+ Attack task = new Attack();
+ executor.execute(task);
+ task.waitUntilDone();
+ if (!task.failedDueToSecurityException())
+ throw new RuntimeException("SecurityException expected");
+ }
+
+}