893N/A/*
2362N/A * Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved.
893N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
893N/A *
893N/A * This code is free software; you can redistribute it and/or modify it
893N/A * under the terms of the GNU General Public License version 2 only, as
893N/A * published by the Free Software Foundation.
893N/A *
893N/A * This code is distributed in the hope that it will be useful, but WITHOUT
893N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
893N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
893N/A * version 2 for more details (a copy is included in the LICENSE file that
893N/A * accompanied this code).
893N/A *
893N/A * You should have received a copy of the GNU General Public License version
893N/A * 2 along with this work; if not, write to the Free Software Foundation,
893N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
893N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
893N/A */
893N/A
893N/Aimport java.nio.channels.AsynchronousChannelGroup;
893N/Aimport java.util.concurrent.*;
893N/A
893N/A/**
893N/A * Test that arbitrary tasks can be submitted to a channel group's thread pool.
893N/A */
893N/A
893N/Apublic class AsExecutor {
893N/A
893N/A public static void main(String[] args) throws Exception {
893N/A // create channel groups
893N/A ThreadFactory factory = new PrivilegedThreadFactory();
893N/A AsynchronousChannelGroup group1 = AsynchronousChannelGroup
893N/A .withFixedThreadPool(5, factory);
893N/A AsynchronousChannelGroup group2 = AsynchronousChannelGroup
893N/A .withCachedThreadPool(Executors.newCachedThreadPool(factory), 0);
893N/A
893N/A try {
893N/A // execute simple tasks
893N/A testSimpleTask(group1);
893N/A testSimpleTask(group2);
893N/A
893N/A // install security manager and test again
893N/A System.setSecurityManager( new SecurityManager() );
893N/A testSimpleTask(group1);
893N/A testSimpleTask(group2);
893N/A
893N/A // attempt to execute tasks that run with only frames from boot
893N/A // class loader on the stack.
893N/A testAttackingTask(group1);
893N/A testAttackingTask(group2);
893N/A } finally {
893N/A group1.shutdown();
893N/A group2.shutdown();
893N/A }
893N/A }
893N/A
893N/A static void testSimpleTask(AsynchronousChannelGroup group) throws Exception {
893N/A Executor executor = (Executor)group;
893N/A final CountDownLatch latch = new CountDownLatch(1);
893N/A executor.execute(new Runnable() {
893N/A public void run() {
893N/A latch.countDown();
893N/A }
893N/A });
893N/A latch.await();
893N/A }
893N/A
893N/A static void testAttackingTask(AsynchronousChannelGroup group) throws Exception {
893N/A Executor executor = (Executor)group;
893N/A Attack task = new Attack();
893N/A executor.execute(task);
893N/A task.waitUntilDone();
893N/A if (!task.failedDueToSecurityException())
893N/A throw new RuntimeException("SecurityException expected");
893N/A }
893N/A
893N/A}