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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.concurrent.ArrayBlockingQueue; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.FutureTask; |
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import java.util.concurrent.LinkedBlockingQueue; |
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import java.util.concurrent.RejectedExecutionException; |
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import java.util.concurrent.RejectedExecutionHandler; |
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import java.util.concurrent.SynchronousQueue; |
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import java.util.concurrent.ThreadFactory; |
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import java.util.concurrent.ThreadPoolExecutor; |
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import java.util.concurrent.TimeUnit; |
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import java.util.concurrent.atomic.AtomicInteger; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class ThreadPoolExecutorTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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main(suite(), args); |
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} |
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public static Test suite() { |
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return new TestSuite(ThreadPoolExecutorTest.class); |
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} |
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|
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static class ExtendedTPE extends ThreadPoolExecutor { |
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final CountDownLatch beforeCalled = new CountDownLatch(1); |
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final CountDownLatch afterCalled = new CountDownLatch(1); |
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final CountDownLatch terminatedCalled = new CountDownLatch(1); |
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|
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public ExtendedTPE() { |
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super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>()); |
52 |
} |
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protected void beforeExecute(Thread t, Runnable r) { |
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beforeCalled.countDown(); |
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} |
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protected void afterExecute(Runnable r, Throwable t) { |
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afterCalled.countDown(); |
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} |
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protected void terminated() { |
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terminatedCalled.countDown(); |
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} |
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|
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public boolean beforeCalled() { |
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return beforeCalled.getCount() == 0; |
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} |
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public boolean afterCalled() { |
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return afterCalled.getCount() == 0; |
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} |
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public boolean terminatedCalled() { |
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return terminatedCalled.getCount() == 0; |
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} |
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} |
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|
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static class FailingThreadFactory implements ThreadFactory { |
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int calls = 0; |
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public Thread newThread(Runnable r) { |
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if (++calls > 1) return null; |
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return new Thread(r); |
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} |
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} |
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|
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/** |
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* execute successfully executes a runnable |
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*/ |
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public void testExecute() throws InterruptedException { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(1, 1, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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final CountDownLatch done = new CountDownLatch(1); |
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final Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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}}; |
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try { |
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p.execute(task); |
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assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* getActiveCount increases but doesn't overestimate, when a |
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* thread becomes active |
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*/ |
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public void testGetActiveCount() throws InterruptedException { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(2, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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final CountDownLatch done = new CountDownLatch(1); |
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try { |
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assertEquals(0, p.getActiveCount()); |
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p.execute(new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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threadStarted.countDown(); |
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assertEquals(1, p.getActiveCount()); |
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done.await(); |
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}}); |
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assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
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assertEquals(1, p.getActiveCount()); |
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} finally { |
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done.countDown(); |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* prestartCoreThread starts a thread if under corePoolSize, else doesn't |
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*/ |
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public void testPrestartCoreThread() { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(2, 6, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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assertEquals(0, p.getPoolSize()); |
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assertTrue(p.prestartCoreThread()); |
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assertEquals(1, p.getPoolSize()); |
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assertTrue(p.prestartCoreThread()); |
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assertEquals(2, p.getPoolSize()); |
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assertFalse(p.prestartCoreThread()); |
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assertEquals(2, p.getPoolSize()); |
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p.setCorePoolSize(4); |
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assertTrue(p.prestartCoreThread()); |
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assertEquals(3, p.getPoolSize()); |
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assertTrue(p.prestartCoreThread()); |
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assertEquals(4, p.getPoolSize()); |
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assertFalse(p.prestartCoreThread()); |
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assertEquals(4, p.getPoolSize()); |
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} |
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} |
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|
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/** |
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* prestartAllCoreThreads starts all corePoolSize threads |
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*/ |
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public void testPrestartAllCoreThreads() { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(2, 6, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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assertEquals(0, p.getPoolSize()); |
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p.prestartAllCoreThreads(); |
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assertEquals(2, p.getPoolSize()); |
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p.prestartAllCoreThreads(); |
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assertEquals(2, p.getPoolSize()); |
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p.setCorePoolSize(4); |
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p.prestartAllCoreThreads(); |
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assertEquals(4, p.getPoolSize()); |
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p.prestartAllCoreThreads(); |
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assertEquals(4, p.getPoolSize()); |
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} |
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} |
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|
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/** |
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* getCompletedTaskCount increases, but doesn't overestimate, |
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* when tasks complete |
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*/ |
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public void testGetCompletedTaskCount() throws InterruptedException { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(2, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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final CountDownLatch threadProceed = new CountDownLatch(1); |
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final CountDownLatch threadDone = new CountDownLatch(1); |
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assertEquals(0, p.getCompletedTaskCount()); |
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p.execute(new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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threadStarted.countDown(); |
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assertEquals(0, p.getCompletedTaskCount()); |
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threadProceed.await(); |
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threadDone.countDown(); |
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}}); |
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await(threadStarted); |
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assertEquals(0, p.getCompletedTaskCount()); |
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threadProceed.countDown(); |
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threadDone.await(); |
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long startTime = System.nanoTime(); |
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while (p.getCompletedTaskCount() != 1) { |
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if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
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fail("timed out"); |
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Thread.yield(); |
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} |
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} |
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} |
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|
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/** |
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* getCorePoolSize returns size given in constructor if not otherwise set |
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*/ |
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public void testGetCorePoolSize() { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(1, 1, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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assertEquals(1, p.getCorePoolSize()); |
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} |
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} |
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|
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/** |
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* getKeepAliveTime returns value given in constructor if not otherwise set |
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*/ |
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public void testGetKeepAliveTime() { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(2, 2, |
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1000, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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assertEquals(1, p.getKeepAliveTime(SECONDS)); |
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} |
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} |
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|
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/** |
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* getThreadFactory returns factory in constructor if not set |
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*/ |
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public void testGetThreadFactory() { |
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ThreadFactory threadFactory = new SimpleThreadFactory(); |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(1, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10), |
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threadFactory, |
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new NoOpREHandler()); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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assertSame(threadFactory, p.getThreadFactory()); |
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} |
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} |
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|
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/** |
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* setThreadFactory sets the thread factory returned by getThreadFactory |
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*/ |
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public void testSetThreadFactory() { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(1, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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ThreadFactory threadFactory = new SimpleThreadFactory(); |
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p.setThreadFactory(threadFactory); |
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assertSame(threadFactory, p.getThreadFactory()); |
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} |
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} |
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|
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/** |
270 |
* setThreadFactory(null) throws NPE |
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*/ |
272 |
public void testSetThreadFactoryNull() { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(1, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
277 |
try { |
278 |
p.setThreadFactory(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
281 |
} finally { |
282 |
joinPool(p); |
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} |
284 |
} |
285 |
|
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/** |
287 |
* getRejectedExecutionHandler returns handler in constructor if not set |
288 |
*/ |
289 |
public void testGetRejectedExecutionHandler() { |
290 |
final RejectedExecutionHandler h = new NoOpREHandler(); |
291 |
final ThreadPoolExecutor p = |
292 |
new ThreadPoolExecutor(1, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10), |
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h); |
296 |
assertSame(h, p.getRejectedExecutionHandler()); |
297 |
joinPool(p); |
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} |
299 |
|
300 |
/** |
301 |
* setRejectedExecutionHandler sets the handler returned by |
302 |
* getRejectedExecutionHandler |
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*/ |
304 |
public void testSetRejectedExecutionHandler() { |
305 |
final ThreadPoolExecutor p = |
306 |
new ThreadPoolExecutor(1, 2, |
307 |
LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
309 |
RejectedExecutionHandler h = new NoOpREHandler(); |
310 |
p.setRejectedExecutionHandler(h); |
311 |
assertSame(h, p.getRejectedExecutionHandler()); |
312 |
joinPool(p); |
313 |
} |
314 |
|
315 |
/** |
316 |
* setRejectedExecutionHandler(null) throws NPE |
317 |
*/ |
318 |
public void testSetRejectedExecutionHandlerNull() { |
319 |
final ThreadPoolExecutor p = |
320 |
new ThreadPoolExecutor(1, 2, |
321 |
LONG_DELAY_MS, MILLISECONDS, |
322 |
new ArrayBlockingQueue<Runnable>(10)); |
323 |
try { |
324 |
p.setRejectedExecutionHandler(null); |
325 |
shouldThrow(); |
326 |
} catch (NullPointerException success) { |
327 |
} finally { |
328 |
joinPool(p); |
329 |
} |
330 |
} |
331 |
|
332 |
/** |
333 |
* getLargestPoolSize increases, but doesn't overestimate, when |
334 |
* multiple threads active |
335 |
*/ |
336 |
public void testGetLargestPoolSize() throws InterruptedException { |
337 |
final int THREADS = 3; |
338 |
final ThreadPoolExecutor p = |
339 |
new ThreadPoolExecutor(THREADS, THREADS, |
340 |
LONG_DELAY_MS, MILLISECONDS, |
341 |
new ArrayBlockingQueue<Runnable>(10)); |
342 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
343 |
final CountDownLatch done = new CountDownLatch(1); |
344 |
try { |
345 |
assertEquals(0, p.getLargestPoolSize()); |
346 |
for (int i = 0; i < THREADS; i++) |
347 |
p.execute(new CheckedRunnable() { |
348 |
public void realRun() throws InterruptedException { |
349 |
threadsStarted.countDown(); |
350 |
done.await(); |
351 |
assertEquals(THREADS, p.getLargestPoolSize()); |
352 |
}}); |
353 |
assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
354 |
assertEquals(THREADS, p.getLargestPoolSize()); |
355 |
} finally { |
356 |
done.countDown(); |
357 |
joinPool(p); |
358 |
assertEquals(THREADS, p.getLargestPoolSize()); |
359 |
} |
360 |
} |
361 |
|
362 |
/** |
363 |
* getMaximumPoolSize returns value given in constructor if not |
364 |
* otherwise set |
365 |
*/ |
366 |
public void testGetMaximumPoolSize() { |
367 |
final ThreadPoolExecutor p = |
368 |
new ThreadPoolExecutor(2, 3, |
369 |
LONG_DELAY_MS, MILLISECONDS, |
370 |
new ArrayBlockingQueue<Runnable>(10)); |
371 |
assertEquals(3, p.getMaximumPoolSize()); |
372 |
joinPool(p); |
373 |
} |
374 |
|
375 |
/** |
376 |
* getPoolSize increases, but doesn't overestimate, when threads |
377 |
* become active |
378 |
*/ |
379 |
public void testGetPoolSize() throws InterruptedException { |
380 |
final ThreadPoolExecutor p = |
381 |
new ThreadPoolExecutor(1, 1, |
382 |
LONG_DELAY_MS, MILLISECONDS, |
383 |
new ArrayBlockingQueue<Runnable>(10)); |
384 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
385 |
final CountDownLatch done = new CountDownLatch(1); |
386 |
try { |
387 |
assertEquals(0, p.getPoolSize()); |
388 |
p.execute(new CheckedRunnable() { |
389 |
public void realRun() throws InterruptedException { |
390 |
threadStarted.countDown(); |
391 |
assertEquals(1, p.getPoolSize()); |
392 |
done.await(); |
393 |
}}); |
394 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
395 |
assertEquals(1, p.getPoolSize()); |
396 |
} finally { |
397 |
done.countDown(); |
398 |
joinPool(p); |
399 |
} |
400 |
} |
401 |
|
402 |
/** |
403 |
* getTaskCount increases, but doesn't overestimate, when tasks submitted |
404 |
*/ |
405 |
public void testGetTaskCount() throws InterruptedException { |
406 |
final ThreadPoolExecutor p = |
407 |
new ThreadPoolExecutor(1, 1, |
408 |
LONG_DELAY_MS, MILLISECONDS, |
409 |
new ArrayBlockingQueue<Runnable>(10)); |
410 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
411 |
final CountDownLatch done = new CountDownLatch(1); |
412 |
try { |
413 |
assertEquals(0, p.getTaskCount()); |
414 |
p.execute(new CheckedRunnable() { |
415 |
public void realRun() throws InterruptedException { |
416 |
threadStarted.countDown(); |
417 |
assertEquals(1, p.getTaskCount()); |
418 |
done.await(); |
419 |
}}); |
420 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
421 |
assertEquals(1, p.getTaskCount()); |
422 |
} finally { |
423 |
done.countDown(); |
424 |
joinPool(p); |
425 |
} |
426 |
} |
427 |
|
428 |
/** |
429 |
* isShutdown is false before shutdown, true after |
430 |
*/ |
431 |
public void testIsShutdown() { |
432 |
final ThreadPoolExecutor p = |
433 |
new ThreadPoolExecutor(1, 1, |
434 |
LONG_DELAY_MS, MILLISECONDS, |
435 |
new ArrayBlockingQueue<Runnable>(10)); |
436 |
assertFalse(p.isShutdown()); |
437 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
438 |
assertTrue(p.isShutdown()); |
439 |
joinPool(p); |
440 |
} |
441 |
|
442 |
/** |
443 |
* awaitTermination on a non-shutdown pool times out |
444 |
*/ |
445 |
public void testAwaitTermination_timesOut() throws InterruptedException { |
446 |
final ThreadPoolExecutor p = |
447 |
new ThreadPoolExecutor(1, 1, |
448 |
LONG_DELAY_MS, MILLISECONDS, |
449 |
new ArrayBlockingQueue<Runnable>(10)); |
450 |
assertFalse(p.isTerminated()); |
451 |
assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS)); |
452 |
assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
453 |
assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
454 |
assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
455 |
assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
456 |
assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
457 |
long timeoutNanos = 999999L; |
458 |
long startTime = System.nanoTime(); |
459 |
assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
460 |
assertTrue(System.nanoTime() - startTime >= timeoutNanos); |
461 |
assertFalse(p.isTerminated()); |
462 |
startTime = System.nanoTime(); |
463 |
long timeoutMillis = timeoutMillis(); |
464 |
assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS)); |
465 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
466 |
assertFalse(p.isTerminated()); |
467 |
p.shutdown(); |
468 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
469 |
assertTrue(p.isTerminated()); |
470 |
} |
471 |
|
472 |
/** |
473 |
* isTerminated is false before termination, true after |
474 |
*/ |
475 |
public void testIsTerminated() throws InterruptedException { |
476 |
final ThreadPoolExecutor p = |
477 |
new ThreadPoolExecutor(1, 1, |
478 |
LONG_DELAY_MS, MILLISECONDS, |
479 |
new ArrayBlockingQueue<Runnable>(10)); |
480 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
481 |
final CountDownLatch done = new CountDownLatch(1); |
482 |
assertFalse(p.isTerminated()); |
483 |
try { |
484 |
p.execute(new CheckedRunnable() { |
485 |
public void realRun() throws InterruptedException { |
486 |
assertFalse(p.isTerminated()); |
487 |
threadStarted.countDown(); |
488 |
done.await(); |
489 |
}}); |
490 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
491 |
assertFalse(p.isTerminating()); |
492 |
done.countDown(); |
493 |
} finally { |
494 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
495 |
} |
496 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
497 |
assertTrue(p.isTerminated()); |
498 |
} |
499 |
|
500 |
/** |
501 |
* isTerminating is not true when running or when terminated |
502 |
*/ |
503 |
public void testIsTerminating() throws InterruptedException { |
504 |
final ThreadPoolExecutor p = |
505 |
new ThreadPoolExecutor(1, 1, |
506 |
LONG_DELAY_MS, MILLISECONDS, |
507 |
new ArrayBlockingQueue<Runnable>(10)); |
508 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
509 |
final CountDownLatch done = new CountDownLatch(1); |
510 |
try { |
511 |
assertFalse(p.isTerminating()); |
512 |
p.execute(new CheckedRunnable() { |
513 |
public void realRun() throws InterruptedException { |
514 |
assertFalse(p.isTerminating()); |
515 |
threadStarted.countDown(); |
516 |
done.await(); |
517 |
}}); |
518 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
519 |
assertFalse(p.isTerminating()); |
520 |
done.countDown(); |
521 |
} finally { |
522 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
523 |
} |
524 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
525 |
assertTrue(p.isTerminated()); |
526 |
assertFalse(p.isTerminating()); |
527 |
} |
528 |
|
529 |
/** |
530 |
* getQueue returns the work queue, which contains queued tasks |
531 |
*/ |
532 |
public void testGetQueue() throws InterruptedException { |
533 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
534 |
final ThreadPoolExecutor p = |
535 |
new ThreadPoolExecutor(1, 1, |
536 |
LONG_DELAY_MS, MILLISECONDS, |
537 |
q); |
538 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
539 |
final CountDownLatch done = new CountDownLatch(1); |
540 |
try { |
541 |
FutureTask[] tasks = new FutureTask[5]; |
542 |
for (int i = 0; i < tasks.length; i++) { |
543 |
Callable task = new CheckedCallable<Boolean>() { |
544 |
public Boolean realCall() throws InterruptedException { |
545 |
threadStarted.countDown(); |
546 |
assertSame(q, p.getQueue()); |
547 |
done.await(); |
548 |
return Boolean.TRUE; |
549 |
}}; |
550 |
tasks[i] = new FutureTask(task); |
551 |
p.execute(tasks[i]); |
552 |
} |
553 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
554 |
assertSame(q, p.getQueue()); |
555 |
assertFalse(q.contains(tasks[0])); |
556 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
557 |
assertEquals(tasks.length - 1, q.size()); |
558 |
} finally { |
559 |
done.countDown(); |
560 |
joinPool(p); |
561 |
} |
562 |
} |
563 |
|
564 |
/** |
565 |
* remove(task) removes queued task, and fails to remove active task |
566 |
*/ |
567 |
public void testRemove() throws InterruptedException { |
568 |
BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
569 |
final ThreadPoolExecutor p = |
570 |
new ThreadPoolExecutor(1, 1, |
571 |
LONG_DELAY_MS, MILLISECONDS, |
572 |
q); |
573 |
Runnable[] tasks = new Runnable[5]; |
574 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
575 |
final CountDownLatch done = new CountDownLatch(1); |
576 |
try { |
577 |
for (int i = 0; i < tasks.length; i++) { |
578 |
tasks[i] = new CheckedRunnable() { |
579 |
public void realRun() throws InterruptedException { |
580 |
threadStarted.countDown(); |
581 |
done.await(); |
582 |
}}; |
583 |
p.execute(tasks[i]); |
584 |
} |
585 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
586 |
assertFalse(p.remove(tasks[0])); |
587 |
assertTrue(q.contains(tasks[4])); |
588 |
assertTrue(q.contains(tasks[3])); |
589 |
assertTrue(p.remove(tasks[4])); |
590 |
assertFalse(p.remove(tasks[4])); |
591 |
assertFalse(q.contains(tasks[4])); |
592 |
assertTrue(q.contains(tasks[3])); |
593 |
assertTrue(p.remove(tasks[3])); |
594 |
assertFalse(q.contains(tasks[3])); |
595 |
} finally { |
596 |
done.countDown(); |
597 |
joinPool(p); |
598 |
} |
599 |
} |
600 |
|
601 |
/** |
602 |
* purge removes cancelled tasks from the queue |
603 |
*/ |
604 |
public void testPurge() throws InterruptedException { |
605 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
606 |
final CountDownLatch done = new CountDownLatch(1); |
607 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
608 |
final ThreadPoolExecutor p = |
609 |
new ThreadPoolExecutor(1, 1, |
610 |
LONG_DELAY_MS, MILLISECONDS, |
611 |
q); |
612 |
FutureTask[] tasks = new FutureTask[5]; |
613 |
try { |
614 |
for (int i = 0; i < tasks.length; i++) { |
615 |
Callable task = new CheckedCallable<Boolean>() { |
616 |
public Boolean realCall() throws InterruptedException { |
617 |
threadStarted.countDown(); |
618 |
done.await(); |
619 |
return Boolean.TRUE; |
620 |
}}; |
621 |
tasks[i] = new FutureTask(task); |
622 |
p.execute(tasks[i]); |
623 |
} |
624 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
625 |
assertEquals(tasks.length, p.getTaskCount()); |
626 |
assertEquals(tasks.length - 1, q.size()); |
627 |
assertEquals(1L, p.getActiveCount()); |
628 |
assertEquals(0L, p.getCompletedTaskCount()); |
629 |
tasks[4].cancel(true); |
630 |
tasks[3].cancel(false); |
631 |
p.purge(); |
632 |
assertEquals(tasks.length - 3, q.size()); |
633 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
634 |
p.purge(); // Nothing to do |
635 |
assertEquals(tasks.length - 3, q.size()); |
636 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
637 |
} finally { |
638 |
done.countDown(); |
639 |
joinPool(p); |
640 |
} |
641 |
} |
642 |
|
643 |
/** |
644 |
* shutdownNow returns a list containing tasks that were not run, |
645 |
* and those tasks are drained from the queue |
646 |
*/ |
647 |
public void testShutdownNow() throws InterruptedException { |
648 |
final int poolSize = 2; |
649 |
final int count = 5; |
650 |
final AtomicInteger ran = new AtomicInteger(0); |
651 |
final ThreadPoolExecutor p = |
652 |
new ThreadPoolExecutor(poolSize, poolSize, |
653 |
LONG_DELAY_MS, MILLISECONDS, |
654 |
new ArrayBlockingQueue<Runnable>(10)); |
655 |
CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
656 |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
657 |
threadsStarted.countDown(); |
658 |
try { |
659 |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
660 |
} catch (InterruptedException success) {} |
661 |
ran.getAndIncrement(); |
662 |
}}; |
663 |
for (int i = 0; i < count; i++) |
664 |
p.execute(waiter); |
665 |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
666 |
assertEquals(poolSize, p.getActiveCount()); |
667 |
assertEquals(0, p.getCompletedTaskCount()); |
668 |
final List<Runnable> queuedTasks; |
669 |
try { |
670 |
queuedTasks = p.shutdownNow(); |
671 |
} catch (SecurityException ok) { |
672 |
return; // Allowed in case test doesn't have privs |
673 |
} |
674 |
assertTrue(p.isShutdown()); |
675 |
assertTrue(p.getQueue().isEmpty()); |
676 |
assertEquals(count - poolSize, queuedTasks.size()); |
677 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
678 |
assertTrue(p.isTerminated()); |
679 |
assertEquals(poolSize, ran.get()); |
680 |
assertEquals(poolSize, p.getCompletedTaskCount()); |
681 |
} |
682 |
|
683 |
// Exception Tests |
684 |
|
685 |
/** |
686 |
* Constructor throws if corePoolSize argument is less than zero |
687 |
*/ |
688 |
public void testConstructor1() { |
689 |
try { |
690 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
691 |
new ArrayBlockingQueue<Runnable>(10)); |
692 |
shouldThrow(); |
693 |
} catch (IllegalArgumentException success) {} |
694 |
} |
695 |
|
696 |
/** |
697 |
* Constructor throws if maximumPoolSize is less than zero |
698 |
*/ |
699 |
public void testConstructor2() { |
700 |
try { |
701 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
702 |
new ArrayBlockingQueue<Runnable>(10)); |
703 |
shouldThrow(); |
704 |
} catch (IllegalArgumentException success) {} |
705 |
} |
706 |
|
707 |
/** |
708 |
* Constructor throws if maximumPoolSize is equal to zero |
709 |
*/ |
710 |
public void testConstructor3() { |
711 |
try { |
712 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
713 |
new ArrayBlockingQueue<Runnable>(10)); |
714 |
shouldThrow(); |
715 |
} catch (IllegalArgumentException success) {} |
716 |
} |
717 |
|
718 |
/** |
719 |
* Constructor throws if keepAliveTime is less than zero |
720 |
*/ |
721 |
public void testConstructor4() { |
722 |
try { |
723 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
724 |
new ArrayBlockingQueue<Runnable>(10)); |
725 |
shouldThrow(); |
726 |
} catch (IllegalArgumentException success) {} |
727 |
} |
728 |
|
729 |
/** |
730 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
731 |
*/ |
732 |
public void testConstructor5() { |
733 |
try { |
734 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
735 |
new ArrayBlockingQueue<Runnable>(10)); |
736 |
shouldThrow(); |
737 |
} catch (IllegalArgumentException success) {} |
738 |
} |
739 |
|
740 |
/** |
741 |
* Constructor throws if workQueue is set to null |
742 |
*/ |
743 |
public void testConstructorNullPointerException() { |
744 |
try { |
745 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
746 |
(BlockingQueue) null); |
747 |
shouldThrow(); |
748 |
} catch (NullPointerException success) {} |
749 |
} |
750 |
|
751 |
/** |
752 |
* Constructor throws if corePoolSize argument is less than zero |
753 |
*/ |
754 |
public void testConstructor6() { |
755 |
try { |
756 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
757 |
new ArrayBlockingQueue<Runnable>(10), |
758 |
new SimpleThreadFactory()); |
759 |
shouldThrow(); |
760 |
} catch (IllegalArgumentException success) {} |
761 |
} |
762 |
|
763 |
/** |
764 |
* Constructor throws if maximumPoolSize is less than zero |
765 |
*/ |
766 |
public void testConstructor7() { |
767 |
try { |
768 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
769 |
new ArrayBlockingQueue<Runnable>(10), |
770 |
new SimpleThreadFactory()); |
771 |
shouldThrow(); |
772 |
} catch (IllegalArgumentException success) {} |
773 |
} |
774 |
|
775 |
/** |
776 |
* Constructor throws if maximumPoolSize is equal to zero |
777 |
*/ |
778 |
public void testConstructor8() { |
779 |
try { |
780 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
781 |
new ArrayBlockingQueue<Runnable>(10), |
782 |
new SimpleThreadFactory()); |
783 |
shouldThrow(); |
784 |
} catch (IllegalArgumentException success) {} |
785 |
} |
786 |
|
787 |
/** |
788 |
* Constructor throws if keepAliveTime is less than zero |
789 |
*/ |
790 |
public void testConstructor9() { |
791 |
try { |
792 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
793 |
new ArrayBlockingQueue<Runnable>(10), |
794 |
new SimpleThreadFactory()); |
795 |
shouldThrow(); |
796 |
} catch (IllegalArgumentException success) {} |
797 |
} |
798 |
|
799 |
/** |
800 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
801 |
*/ |
802 |
public void testConstructor10() { |
803 |
try { |
804 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
805 |
new ArrayBlockingQueue<Runnable>(10), |
806 |
new SimpleThreadFactory()); |
807 |
shouldThrow(); |
808 |
} catch (IllegalArgumentException success) {} |
809 |
} |
810 |
|
811 |
/** |
812 |
* Constructor throws if workQueue is set to null |
813 |
*/ |
814 |
public void testConstructorNullPointerException2() { |
815 |
try { |
816 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
817 |
(BlockingQueue) null, |
818 |
new SimpleThreadFactory()); |
819 |
shouldThrow(); |
820 |
} catch (NullPointerException success) {} |
821 |
} |
822 |
|
823 |
/** |
824 |
* Constructor throws if threadFactory is set to null |
825 |
*/ |
826 |
public void testConstructorNullPointerException3() { |
827 |
try { |
828 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
829 |
new ArrayBlockingQueue<Runnable>(10), |
830 |
(ThreadFactory) null); |
831 |
shouldThrow(); |
832 |
} catch (NullPointerException success) {} |
833 |
} |
834 |
|
835 |
/** |
836 |
* Constructor throws if corePoolSize argument is less than zero |
837 |
*/ |
838 |
public void testConstructor11() { |
839 |
try { |
840 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
841 |
new ArrayBlockingQueue<Runnable>(10), |
842 |
new NoOpREHandler()); |
843 |
shouldThrow(); |
844 |
} catch (IllegalArgumentException success) {} |
845 |
} |
846 |
|
847 |
/** |
848 |
* Constructor throws if maximumPoolSize is less than zero |
849 |
*/ |
850 |
public void testConstructor12() { |
851 |
try { |
852 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
853 |
new ArrayBlockingQueue<Runnable>(10), |
854 |
new NoOpREHandler()); |
855 |
shouldThrow(); |
856 |
} catch (IllegalArgumentException success) {} |
857 |
} |
858 |
|
859 |
/** |
860 |
* Constructor throws if maximumPoolSize is equal to zero |
861 |
*/ |
862 |
public void testConstructor13() { |
863 |
try { |
864 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
865 |
new ArrayBlockingQueue<Runnable>(10), |
866 |
new NoOpREHandler()); |
867 |
shouldThrow(); |
868 |
} catch (IllegalArgumentException success) {} |
869 |
} |
870 |
|
871 |
/** |
872 |
* Constructor throws if keepAliveTime is less than zero |
873 |
*/ |
874 |
public void testConstructor14() { |
875 |
try { |
876 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
877 |
new ArrayBlockingQueue<Runnable>(10), |
878 |
new NoOpREHandler()); |
879 |
shouldThrow(); |
880 |
} catch (IllegalArgumentException success) {} |
881 |
} |
882 |
|
883 |
/** |
884 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
885 |
*/ |
886 |
public void testConstructor15() { |
887 |
try { |
888 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
889 |
new ArrayBlockingQueue<Runnable>(10), |
890 |
new NoOpREHandler()); |
891 |
shouldThrow(); |
892 |
} catch (IllegalArgumentException success) {} |
893 |
} |
894 |
|
895 |
/** |
896 |
* Constructor throws if workQueue is set to null |
897 |
*/ |
898 |
public void testConstructorNullPointerException4() { |
899 |
try { |
900 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
901 |
(BlockingQueue) null, |
902 |
new NoOpREHandler()); |
903 |
shouldThrow(); |
904 |
} catch (NullPointerException success) {} |
905 |
} |
906 |
|
907 |
/** |
908 |
* Constructor throws if handler is set to null |
909 |
*/ |
910 |
public void testConstructorNullPointerException5() { |
911 |
try { |
912 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
913 |
new ArrayBlockingQueue<Runnable>(10), |
914 |
(RejectedExecutionHandler) null); |
915 |
shouldThrow(); |
916 |
} catch (NullPointerException success) {} |
917 |
} |
918 |
|
919 |
/** |
920 |
* Constructor throws if corePoolSize argument is less than zero |
921 |
*/ |
922 |
public void testConstructor16() { |
923 |
try { |
924 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
925 |
new ArrayBlockingQueue<Runnable>(10), |
926 |
new SimpleThreadFactory(), |
927 |
new NoOpREHandler()); |
928 |
shouldThrow(); |
929 |
} catch (IllegalArgumentException success) {} |
930 |
} |
931 |
|
932 |
/** |
933 |
* Constructor throws if maximumPoolSize is less than zero |
934 |
*/ |
935 |
public void testConstructor17() { |
936 |
try { |
937 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
938 |
new ArrayBlockingQueue<Runnable>(10), |
939 |
new SimpleThreadFactory(), |
940 |
new NoOpREHandler()); |
941 |
shouldThrow(); |
942 |
} catch (IllegalArgumentException success) {} |
943 |
} |
944 |
|
945 |
/** |
946 |
* Constructor throws if maximumPoolSize is equal to zero |
947 |
*/ |
948 |
public void testConstructor18() { |
949 |
try { |
950 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
951 |
new ArrayBlockingQueue<Runnable>(10), |
952 |
new SimpleThreadFactory(), |
953 |
new NoOpREHandler()); |
954 |
shouldThrow(); |
955 |
} catch (IllegalArgumentException success) {} |
956 |
} |
957 |
|
958 |
/** |
959 |
* Constructor throws if keepAliveTime is less than zero |
960 |
*/ |
961 |
public void testConstructor19() { |
962 |
try { |
963 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
964 |
new ArrayBlockingQueue<Runnable>(10), |
965 |
new SimpleThreadFactory(), |
966 |
new NoOpREHandler()); |
967 |
shouldThrow(); |
968 |
} catch (IllegalArgumentException success) {} |
969 |
} |
970 |
|
971 |
/** |
972 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
973 |
*/ |
974 |
public void testConstructor20() { |
975 |
try { |
976 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
977 |
new ArrayBlockingQueue<Runnable>(10), |
978 |
new SimpleThreadFactory(), |
979 |
new NoOpREHandler()); |
980 |
shouldThrow(); |
981 |
} catch (IllegalArgumentException success) {} |
982 |
} |
983 |
|
984 |
/** |
985 |
* Constructor throws if workQueue is null |
986 |
*/ |
987 |
public void testConstructorNullPointerException6() { |
988 |
try { |
989 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
990 |
(BlockingQueue) null, |
991 |
new SimpleThreadFactory(), |
992 |
new NoOpREHandler()); |
993 |
shouldThrow(); |
994 |
} catch (NullPointerException success) {} |
995 |
} |
996 |
|
997 |
/** |
998 |
* Constructor throws if handler is null |
999 |
*/ |
1000 |
public void testConstructorNullPointerException7() { |
1001 |
try { |
1002 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
1003 |
new ArrayBlockingQueue<Runnable>(10), |
1004 |
new SimpleThreadFactory(), |
1005 |
(RejectedExecutionHandler) null); |
1006 |
shouldThrow(); |
1007 |
} catch (NullPointerException success) {} |
1008 |
} |
1009 |
|
1010 |
/** |
1011 |
* Constructor throws if ThreadFactory is null |
1012 |
*/ |
1013 |
public void testConstructorNullPointerException8() { |
1014 |
try { |
1015 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
1016 |
new ArrayBlockingQueue<Runnable>(10), |
1017 |
(ThreadFactory) null, |
1018 |
new NoOpREHandler()); |
1019 |
shouldThrow(); |
1020 |
} catch (NullPointerException success) {} |
1021 |
} |
1022 |
|
1023 |
/** |
1024 |
* get of submitted callable throws InterruptedException if interrupted |
1025 |
*/ |
1026 |
public void testInterruptedSubmit() throws InterruptedException { |
1027 |
final ThreadPoolExecutor p = |
1028 |
new ThreadPoolExecutor(1, 1, |
1029 |
60, SECONDS, |
1030 |
new ArrayBlockingQueue<Runnable>(10)); |
1031 |
|
1032 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1033 |
final CountDownLatch done = new CountDownLatch(1); |
1034 |
try { |
1035 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1036 |
public void realRun() throws Exception { |
1037 |
Callable task = new CheckedCallable<Boolean>() { |
1038 |
public Boolean realCall() throws InterruptedException { |
1039 |
threadStarted.countDown(); |
1040 |
done.await(); |
1041 |
return Boolean.TRUE; |
1042 |
}}; |
1043 |
p.submit(task).get(); |
1044 |
}}); |
1045 |
|
1046 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
1047 |
t.interrupt(); |
1048 |
awaitTermination(t, MEDIUM_DELAY_MS); |
1049 |
} finally { |
1050 |
done.countDown(); |
1051 |
joinPool(p); |
1052 |
} |
1053 |
} |
1054 |
|
1055 |
/** |
1056 |
* execute throws RejectedExecutionException if saturated. |
1057 |
*/ |
1058 |
public void testSaturatedExecute() { |
1059 |
ThreadPoolExecutor p = |
1060 |
new ThreadPoolExecutor(1, 1, |
1061 |
LONG_DELAY_MS, MILLISECONDS, |
1062 |
new ArrayBlockingQueue<Runnable>(1)); |
1063 |
final CountDownLatch done = new CountDownLatch(1); |
1064 |
try { |
1065 |
Runnable task = new CheckedRunnable() { |
1066 |
public void realRun() throws InterruptedException { |
1067 |
done.await(); |
1068 |
}}; |
1069 |
for (int i = 0; i < 2; ++i) |
1070 |
p.execute(task); |
1071 |
for (int i = 0; i < 2; ++i) { |
1072 |
try { |
1073 |
p.execute(task); |
1074 |
shouldThrow(); |
1075 |
} catch (RejectedExecutionException success) {} |
1076 |
assertTrue(p.getTaskCount() <= 2); |
1077 |
} |
1078 |
} finally { |
1079 |
done.countDown(); |
1080 |
joinPool(p); |
1081 |
} |
1082 |
} |
1083 |
|
1084 |
/** |
1085 |
* submit(runnable) throws RejectedExecutionException if saturated. |
1086 |
*/ |
1087 |
public void testSaturatedSubmitRunnable() { |
1088 |
ThreadPoolExecutor p = |
1089 |
new ThreadPoolExecutor(1, 1, |
1090 |
LONG_DELAY_MS, MILLISECONDS, |
1091 |
new ArrayBlockingQueue<Runnable>(1)); |
1092 |
final CountDownLatch done = new CountDownLatch(1); |
1093 |
try { |
1094 |
Runnable task = new CheckedRunnable() { |
1095 |
public void realRun() throws InterruptedException { |
1096 |
done.await(); |
1097 |
}}; |
1098 |
for (int i = 0; i < 2; ++i) |
1099 |
p.submit(task); |
1100 |
for (int i = 0; i < 2; ++i) { |
1101 |
try { |
1102 |
p.execute(task); |
1103 |
shouldThrow(); |
1104 |
} catch (RejectedExecutionException success) {} |
1105 |
assertTrue(p.getTaskCount() <= 2); |
1106 |
} |
1107 |
} finally { |
1108 |
done.countDown(); |
1109 |
joinPool(p); |
1110 |
} |
1111 |
} |
1112 |
|
1113 |
/** |
1114 |
* submit(callable) throws RejectedExecutionException if saturated. |
1115 |
*/ |
1116 |
public void testSaturatedSubmitCallable() { |
1117 |
ThreadPoolExecutor p = |
1118 |
new ThreadPoolExecutor(1, 1, |
1119 |
LONG_DELAY_MS, MILLISECONDS, |
1120 |
new ArrayBlockingQueue<Runnable>(1)); |
1121 |
final CountDownLatch done = new CountDownLatch(1); |
1122 |
try { |
1123 |
Runnable task = new CheckedRunnable() { |
1124 |
public void realRun() throws InterruptedException { |
1125 |
done.await(); |
1126 |
}}; |
1127 |
for (int i = 0; i < 2; ++i) |
1128 |
p.submit(Executors.callable(task)); |
1129 |
for (int i = 0; i < 2; ++i) { |
1130 |
try { |
1131 |
p.execute(task); |
1132 |
shouldThrow(); |
1133 |
} catch (RejectedExecutionException success) {} |
1134 |
assertTrue(p.getTaskCount() <= 2); |
1135 |
} |
1136 |
} finally { |
1137 |
done.countDown(); |
1138 |
joinPool(p); |
1139 |
} |
1140 |
} |
1141 |
|
1142 |
/** |
1143 |
* executor using CallerRunsPolicy runs task if saturated. |
1144 |
*/ |
1145 |
public void testSaturatedExecute2() { |
1146 |
RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
1147 |
final ThreadPoolExecutor p = |
1148 |
new ThreadPoolExecutor(1, 1, |
1149 |
LONG_DELAY_MS, |
1150 |
MILLISECONDS, |
1151 |
new ArrayBlockingQueue<Runnable>(1), |
1152 |
h); |
1153 |
try { |
1154 |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1155 |
for (int i = 0; i < tasks.length; ++i) |
1156 |
tasks[i] = new TrackedNoOpRunnable(); |
1157 |
TrackedLongRunnable mr = new TrackedLongRunnable(); |
1158 |
p.execute(mr); |
1159 |
for (int i = 0; i < tasks.length; ++i) |
1160 |
p.execute(tasks[i]); |
1161 |
for (int i = 1; i < tasks.length; ++i) |
1162 |
assertTrue(tasks[i].done); |
1163 |
try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
1164 |
} finally { |
1165 |
joinPool(p); |
1166 |
} |
1167 |
} |
1168 |
|
1169 |
/** |
1170 |
* executor using DiscardPolicy drops task if saturated. |
1171 |
*/ |
1172 |
public void testSaturatedExecute3() { |
1173 |
RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy(); |
1174 |
final ThreadPoolExecutor p = |
1175 |
new ThreadPoolExecutor(1, 1, |
1176 |
LONG_DELAY_MS, MILLISECONDS, |
1177 |
new ArrayBlockingQueue<Runnable>(1), |
1178 |
h); |
1179 |
try { |
1180 |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1181 |
for (int i = 0; i < tasks.length; ++i) |
1182 |
tasks[i] = new TrackedNoOpRunnable(); |
1183 |
p.execute(new TrackedLongRunnable()); |
1184 |
for (TrackedNoOpRunnable task : tasks) |
1185 |
p.execute(task); |
1186 |
for (TrackedNoOpRunnable task : tasks) |
1187 |
assertFalse(task.done); |
1188 |
try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
1189 |
} finally { |
1190 |
joinPool(p); |
1191 |
} |
1192 |
} |
1193 |
|
1194 |
/** |
1195 |
* executor using DiscardOldestPolicy drops oldest task if saturated. |
1196 |
*/ |
1197 |
public void testSaturatedExecute4() { |
1198 |
RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy(); |
1199 |
final ThreadPoolExecutor p = |
1200 |
new ThreadPoolExecutor(1, 1, |
1201 |
LONG_DELAY_MS, MILLISECONDS, |
1202 |
new ArrayBlockingQueue<Runnable>(1), |
1203 |
h); |
1204 |
try { |
1205 |
p.execute(new TrackedLongRunnable()); |
1206 |
TrackedLongRunnable r2 = new TrackedLongRunnable(); |
1207 |
p.execute(r2); |
1208 |
assertTrue(p.getQueue().contains(r2)); |
1209 |
TrackedNoOpRunnable r3 = new TrackedNoOpRunnable(); |
1210 |
p.execute(r3); |
1211 |
assertFalse(p.getQueue().contains(r2)); |
1212 |
assertTrue(p.getQueue().contains(r3)); |
1213 |
try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
1214 |
} finally { |
1215 |
joinPool(p); |
1216 |
} |
1217 |
} |
1218 |
|
1219 |
/** |
1220 |
* execute throws RejectedExecutionException if shutdown |
1221 |
*/ |
1222 |
public void testRejectedExecutionExceptionOnShutdown() { |
1223 |
ThreadPoolExecutor p = |
1224 |
new ThreadPoolExecutor(1, 1, |
1225 |
LONG_DELAY_MS, MILLISECONDS, |
1226 |
new ArrayBlockingQueue<Runnable>(1)); |
1227 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1228 |
try { |
1229 |
p.execute(new NoOpRunnable()); |
1230 |
shouldThrow(); |
1231 |
} catch (RejectedExecutionException success) {} |
1232 |
|
1233 |
joinPool(p); |
1234 |
} |
1235 |
|
1236 |
/** |
1237 |
* execute using CallerRunsPolicy drops task on shutdown |
1238 |
*/ |
1239 |
public void testCallerRunsOnShutdown() { |
1240 |
RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
1241 |
final ThreadPoolExecutor p = |
1242 |
new ThreadPoolExecutor(1, 1, |
1243 |
LONG_DELAY_MS, MILLISECONDS, |
1244 |
new ArrayBlockingQueue<Runnable>(1), h); |
1245 |
|
1246 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1247 |
try { |
1248 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1249 |
p.execute(r); |
1250 |
assertFalse(r.done); |
1251 |
} finally { |
1252 |
joinPool(p); |
1253 |
} |
1254 |
} |
1255 |
|
1256 |
/** |
1257 |
* execute using DiscardPolicy drops task on shutdown |
1258 |
*/ |
1259 |
public void testDiscardOnShutdown() { |
1260 |
RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy(); |
1261 |
ThreadPoolExecutor p = |
1262 |
new ThreadPoolExecutor(1, 1, |
1263 |
LONG_DELAY_MS, MILLISECONDS, |
1264 |
new ArrayBlockingQueue<Runnable>(1), |
1265 |
h); |
1266 |
|
1267 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1268 |
try { |
1269 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1270 |
p.execute(r); |
1271 |
assertFalse(r.done); |
1272 |
} finally { |
1273 |
joinPool(p); |
1274 |
} |
1275 |
} |
1276 |
|
1277 |
/** |
1278 |
* execute using DiscardOldestPolicy drops task on shutdown |
1279 |
*/ |
1280 |
public void testDiscardOldestOnShutdown() { |
1281 |
RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy(); |
1282 |
ThreadPoolExecutor p = |
1283 |
new ThreadPoolExecutor(1, 1, |
1284 |
LONG_DELAY_MS, MILLISECONDS, |
1285 |
new ArrayBlockingQueue<Runnable>(1), |
1286 |
h); |
1287 |
|
1288 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1289 |
try { |
1290 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1291 |
p.execute(r); |
1292 |
assertFalse(r.done); |
1293 |
} finally { |
1294 |
joinPool(p); |
1295 |
} |
1296 |
} |
1297 |
|
1298 |
/** |
1299 |
* execute(null) throws NPE |
1300 |
*/ |
1301 |
public void testExecuteNull() { |
1302 |
ThreadPoolExecutor p = |
1303 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
1304 |
new ArrayBlockingQueue<Runnable>(10)); |
1305 |
try { |
1306 |
p.execute(null); |
1307 |
shouldThrow(); |
1308 |
} catch (NullPointerException success) {} |
1309 |
|
1310 |
joinPool(p); |
1311 |
} |
1312 |
|
1313 |
/** |
1314 |
* setCorePoolSize of negative value throws IllegalArgumentException |
1315 |
*/ |
1316 |
public void testCorePoolSizeIllegalArgumentException() { |
1317 |
ThreadPoolExecutor p = |
1318 |
new ThreadPoolExecutor(1, 2, |
1319 |
LONG_DELAY_MS, MILLISECONDS, |
1320 |
new ArrayBlockingQueue<Runnable>(10)); |
1321 |
try { |
1322 |
p.setCorePoolSize(-1); |
1323 |
shouldThrow(); |
1324 |
} catch (IllegalArgumentException success) { |
1325 |
} finally { |
1326 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1327 |
} |
1328 |
joinPool(p); |
1329 |
} |
1330 |
|
1331 |
/** |
1332 |
* setMaximumPoolSize(int) throws IllegalArgumentException if |
1333 |
* given a value less the core pool size |
1334 |
*/ |
1335 |
public void testMaximumPoolSizeIllegalArgumentException() { |
1336 |
ThreadPoolExecutor p = |
1337 |
new ThreadPoolExecutor(2, 3, |
1338 |
LONG_DELAY_MS, MILLISECONDS, |
1339 |
new ArrayBlockingQueue<Runnable>(10)); |
1340 |
try { |
1341 |
p.setMaximumPoolSize(1); |
1342 |
shouldThrow(); |
1343 |
} catch (IllegalArgumentException success) { |
1344 |
} finally { |
1345 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1346 |
} |
1347 |
joinPool(p); |
1348 |
} |
1349 |
|
1350 |
/** |
1351 |
* setMaximumPoolSize throws IllegalArgumentException |
1352 |
* if given a negative value |
1353 |
*/ |
1354 |
public void testMaximumPoolSizeIllegalArgumentException2() { |
1355 |
ThreadPoolExecutor p = |
1356 |
new ThreadPoolExecutor(2, 3, |
1357 |
LONG_DELAY_MS, MILLISECONDS, |
1358 |
new ArrayBlockingQueue<Runnable>(10)); |
1359 |
try { |
1360 |
p.setMaximumPoolSize(-1); |
1361 |
shouldThrow(); |
1362 |
} catch (IllegalArgumentException success) { |
1363 |
} finally { |
1364 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1365 |
} |
1366 |
joinPool(p); |
1367 |
} |
1368 |
|
1369 |
/** |
1370 |
* Configuration changes that allow core pool size greater than |
1371 |
* max pool size result in IllegalArgumentException. |
1372 |
*/ |
1373 |
public void testPoolSizeInvariants() { |
1374 |
ThreadPoolExecutor p = |
1375 |
new ThreadPoolExecutor(1, 1, |
1376 |
LONG_DELAY_MS, MILLISECONDS, |
1377 |
new ArrayBlockingQueue<Runnable>(10)); |
1378 |
for (int s = 1; s < 5; s++) { |
1379 |
p.setMaximumPoolSize(s); |
1380 |
p.setCorePoolSize(s); |
1381 |
try { |
1382 |
p.setMaximumPoolSize(s - 1); |
1383 |
shouldThrow(); |
1384 |
} catch (IllegalArgumentException success) {} |
1385 |
assertEquals(s, p.getCorePoolSize()); |
1386 |
assertEquals(s, p.getMaximumPoolSize()); |
1387 |
try { |
1388 |
p.setCorePoolSize(s + 1); |
1389 |
shouldThrow(); |
1390 |
} catch (IllegalArgumentException success) {} |
1391 |
assertEquals(s, p.getCorePoolSize()); |
1392 |
assertEquals(s, p.getMaximumPoolSize()); |
1393 |
} |
1394 |
joinPool(p); |
1395 |
} |
1396 |
|
1397 |
/** |
1398 |
* setKeepAliveTime throws IllegalArgumentException |
1399 |
* when given a negative value |
1400 |
*/ |
1401 |
public void testKeepAliveTimeIllegalArgumentException() { |
1402 |
ThreadPoolExecutor p = |
1403 |
new ThreadPoolExecutor(2, 3, |
1404 |
LONG_DELAY_MS, MILLISECONDS, |
1405 |
new ArrayBlockingQueue<Runnable>(10)); |
1406 |
try { |
1407 |
p.setKeepAliveTime(-1,MILLISECONDS); |
1408 |
shouldThrow(); |
1409 |
} catch (IllegalArgumentException success) { |
1410 |
} finally { |
1411 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1412 |
} |
1413 |
joinPool(p); |
1414 |
} |
1415 |
|
1416 |
/** |
1417 |
* terminated() is called on termination |
1418 |
*/ |
1419 |
public void testTerminated() { |
1420 |
ExtendedTPE p = new ExtendedTPE(); |
1421 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1422 |
assertTrue(p.terminatedCalled()); |
1423 |
joinPool(p); |
1424 |
} |
1425 |
|
1426 |
/** |
1427 |
* beforeExecute and afterExecute are called when executing task |
1428 |
*/ |
1429 |
public void testBeforeAfter() throws InterruptedException { |
1430 |
ExtendedTPE p = new ExtendedTPE(); |
1431 |
try { |
1432 |
final CountDownLatch done = new CountDownLatch(1); |
1433 |
p.execute(new CheckedRunnable() { |
1434 |
public void realRun() { |
1435 |
done.countDown(); |
1436 |
}}); |
1437 |
await(p.afterCalled); |
1438 |
assertEquals(0, done.getCount()); |
1439 |
assertTrue(p.afterCalled()); |
1440 |
assertTrue(p.beforeCalled()); |
1441 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1442 |
} finally { |
1443 |
joinPool(p); |
1444 |
} |
1445 |
} |
1446 |
|
1447 |
/** |
1448 |
* completed submit of callable returns result |
1449 |
*/ |
1450 |
public void testSubmitCallable() throws Exception { |
1451 |
ExecutorService e = |
1452 |
new ThreadPoolExecutor(2, 2, |
1453 |
LONG_DELAY_MS, MILLISECONDS, |
1454 |
new ArrayBlockingQueue<Runnable>(10)); |
1455 |
try { |
1456 |
Future<String> future = e.submit(new StringTask()); |
1457 |
String result = future.get(); |
1458 |
assertSame(TEST_STRING, result); |
1459 |
} finally { |
1460 |
joinPool(e); |
1461 |
} |
1462 |
} |
1463 |
|
1464 |
/** |
1465 |
* completed submit of runnable returns successfully |
1466 |
*/ |
1467 |
public void testSubmitRunnable() throws Exception { |
1468 |
ExecutorService e = |
1469 |
new ThreadPoolExecutor(2, 2, |
1470 |
LONG_DELAY_MS, MILLISECONDS, |
1471 |
new ArrayBlockingQueue<Runnable>(10)); |
1472 |
try { |
1473 |
Future<?> future = e.submit(new NoOpRunnable()); |
1474 |
future.get(); |
1475 |
assertTrue(future.isDone()); |
1476 |
} finally { |
1477 |
joinPool(e); |
1478 |
} |
1479 |
} |
1480 |
|
1481 |
/** |
1482 |
* completed submit of (runnable, result) returns result |
1483 |
*/ |
1484 |
public void testSubmitRunnable2() throws Exception { |
1485 |
ExecutorService e = |
1486 |
new ThreadPoolExecutor(2, 2, |
1487 |
LONG_DELAY_MS, MILLISECONDS, |
1488 |
new ArrayBlockingQueue<Runnable>(10)); |
1489 |
try { |
1490 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
1491 |
String result = future.get(); |
1492 |
assertSame(TEST_STRING, result); |
1493 |
} finally { |
1494 |
joinPool(e); |
1495 |
} |
1496 |
} |
1497 |
|
1498 |
/** |
1499 |
* invokeAny(null) throws NPE |
1500 |
*/ |
1501 |
public void testInvokeAny1() throws Exception { |
1502 |
ExecutorService e = |
1503 |
new ThreadPoolExecutor(2, 2, |
1504 |
LONG_DELAY_MS, MILLISECONDS, |
1505 |
new ArrayBlockingQueue<Runnable>(10)); |
1506 |
try { |
1507 |
e.invokeAny(null); |
1508 |
shouldThrow(); |
1509 |
} catch (NullPointerException success) { |
1510 |
} finally { |
1511 |
joinPool(e); |
1512 |
} |
1513 |
} |
1514 |
|
1515 |
/** |
1516 |
* invokeAny(empty collection) throws IAE |
1517 |
*/ |
1518 |
public void testInvokeAny2() throws Exception { |
1519 |
ExecutorService e = |
1520 |
new ThreadPoolExecutor(2, 2, |
1521 |
LONG_DELAY_MS, MILLISECONDS, |
1522 |
new ArrayBlockingQueue<Runnable>(10)); |
1523 |
try { |
1524 |
e.invokeAny(new ArrayList<Callable<String>>()); |
1525 |
shouldThrow(); |
1526 |
} catch (IllegalArgumentException success) { |
1527 |
} finally { |
1528 |
joinPool(e); |
1529 |
} |
1530 |
} |
1531 |
|
1532 |
/** |
1533 |
* invokeAny(c) throws NPE if c has null elements |
1534 |
*/ |
1535 |
public void testInvokeAny3() throws Exception { |
1536 |
final CountDownLatch latch = new CountDownLatch(1); |
1537 |
final ExecutorService e = |
1538 |
new ThreadPoolExecutor(2, 2, |
1539 |
LONG_DELAY_MS, MILLISECONDS, |
1540 |
new ArrayBlockingQueue<Runnable>(10)); |
1541 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1542 |
l.add(latchAwaitingStringTask(latch)); |
1543 |
l.add(null); |
1544 |
try { |
1545 |
e.invokeAny(l); |
1546 |
shouldThrow(); |
1547 |
} catch (NullPointerException success) { |
1548 |
} finally { |
1549 |
latch.countDown(); |
1550 |
joinPool(e); |
1551 |
} |
1552 |
} |
1553 |
|
1554 |
/** |
1555 |
* invokeAny(c) throws ExecutionException if no task completes |
1556 |
*/ |
1557 |
public void testInvokeAny4() throws Exception { |
1558 |
ExecutorService e = |
1559 |
new ThreadPoolExecutor(2, 2, |
1560 |
LONG_DELAY_MS, MILLISECONDS, |
1561 |
new ArrayBlockingQueue<Runnable>(10)); |
1562 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1563 |
l.add(new NPETask()); |
1564 |
try { |
1565 |
e.invokeAny(l); |
1566 |
shouldThrow(); |
1567 |
} catch (ExecutionException success) { |
1568 |
assertTrue(success.getCause() instanceof NullPointerException); |
1569 |
} finally { |
1570 |
joinPool(e); |
1571 |
} |
1572 |
} |
1573 |
|
1574 |
/** |
1575 |
* invokeAny(c) returns result of some task |
1576 |
*/ |
1577 |
public void testInvokeAny5() throws Exception { |
1578 |
ExecutorService e = |
1579 |
new ThreadPoolExecutor(2, 2, |
1580 |
LONG_DELAY_MS, MILLISECONDS, |
1581 |
new ArrayBlockingQueue<Runnable>(10)); |
1582 |
try { |
1583 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1584 |
l.add(new StringTask()); |
1585 |
l.add(new StringTask()); |
1586 |
String result = e.invokeAny(l); |
1587 |
assertSame(TEST_STRING, result); |
1588 |
} finally { |
1589 |
joinPool(e); |
1590 |
} |
1591 |
} |
1592 |
|
1593 |
/** |
1594 |
* invokeAll(null) throws NPE |
1595 |
*/ |
1596 |
public void testInvokeAll1() throws Exception { |
1597 |
ExecutorService e = |
1598 |
new ThreadPoolExecutor(2, 2, |
1599 |
LONG_DELAY_MS, MILLISECONDS, |
1600 |
new ArrayBlockingQueue<Runnable>(10)); |
1601 |
try { |
1602 |
e.invokeAll(null); |
1603 |
shouldThrow(); |
1604 |
} catch (NullPointerException success) { |
1605 |
} finally { |
1606 |
joinPool(e); |
1607 |
} |
1608 |
} |
1609 |
|
1610 |
/** |
1611 |
* invokeAll(empty collection) returns empty collection |
1612 |
*/ |
1613 |
public void testInvokeAll2() throws InterruptedException { |
1614 |
ExecutorService e = |
1615 |
new ThreadPoolExecutor(2, 2, |
1616 |
LONG_DELAY_MS, MILLISECONDS, |
1617 |
new ArrayBlockingQueue<Runnable>(10)); |
1618 |
try { |
1619 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
1620 |
assertTrue(r.isEmpty()); |
1621 |
} finally { |
1622 |
joinPool(e); |
1623 |
} |
1624 |
} |
1625 |
|
1626 |
/** |
1627 |
* invokeAll(c) throws NPE if c has null elements |
1628 |
*/ |
1629 |
public void testInvokeAll3() throws Exception { |
1630 |
ExecutorService e = |
1631 |
new ThreadPoolExecutor(2, 2, |
1632 |
LONG_DELAY_MS, MILLISECONDS, |
1633 |
new ArrayBlockingQueue<Runnable>(10)); |
1634 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1635 |
l.add(new StringTask()); |
1636 |
l.add(null); |
1637 |
try { |
1638 |
e.invokeAll(l); |
1639 |
shouldThrow(); |
1640 |
} catch (NullPointerException success) { |
1641 |
} finally { |
1642 |
joinPool(e); |
1643 |
} |
1644 |
} |
1645 |
|
1646 |
/** |
1647 |
* get of element of invokeAll(c) throws exception on failed task |
1648 |
*/ |
1649 |
public void testInvokeAll4() throws Exception { |
1650 |
ExecutorService e = |
1651 |
new ThreadPoolExecutor(2, 2, |
1652 |
LONG_DELAY_MS, MILLISECONDS, |
1653 |
new ArrayBlockingQueue<Runnable>(10)); |
1654 |
try { |
1655 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1656 |
l.add(new NPETask()); |
1657 |
List<Future<String>> futures = e.invokeAll(l); |
1658 |
assertEquals(1, futures.size()); |
1659 |
try { |
1660 |
futures.get(0).get(); |
1661 |
shouldThrow(); |
1662 |
} catch (ExecutionException success) { |
1663 |
assertTrue(success.getCause() instanceof NullPointerException); |
1664 |
} |
1665 |
} finally { |
1666 |
joinPool(e); |
1667 |
} |
1668 |
} |
1669 |
|
1670 |
/** |
1671 |
* invokeAll(c) returns results of all completed tasks |
1672 |
*/ |
1673 |
public void testInvokeAll5() throws Exception { |
1674 |
ExecutorService e = |
1675 |
new ThreadPoolExecutor(2, 2, |
1676 |
LONG_DELAY_MS, MILLISECONDS, |
1677 |
new ArrayBlockingQueue<Runnable>(10)); |
1678 |
try { |
1679 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1680 |
l.add(new StringTask()); |
1681 |
l.add(new StringTask()); |
1682 |
List<Future<String>> futures = e.invokeAll(l); |
1683 |
assertEquals(2, futures.size()); |
1684 |
for (Future<String> future : futures) |
1685 |
assertSame(TEST_STRING, future.get()); |
1686 |
} finally { |
1687 |
joinPool(e); |
1688 |
} |
1689 |
} |
1690 |
|
1691 |
/** |
1692 |
* timed invokeAny(null) throws NPE |
1693 |
*/ |
1694 |
public void testTimedInvokeAny1() throws Exception { |
1695 |
ExecutorService e = |
1696 |
new ThreadPoolExecutor(2, 2, |
1697 |
LONG_DELAY_MS, MILLISECONDS, |
1698 |
new ArrayBlockingQueue<Runnable>(10)); |
1699 |
try { |
1700 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1701 |
shouldThrow(); |
1702 |
} catch (NullPointerException success) { |
1703 |
} finally { |
1704 |
joinPool(e); |
1705 |
} |
1706 |
} |
1707 |
|
1708 |
/** |
1709 |
* timed invokeAny(,,null) throws NPE |
1710 |
*/ |
1711 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1712 |
ExecutorService e = |
1713 |
new ThreadPoolExecutor(2, 2, |
1714 |
LONG_DELAY_MS, MILLISECONDS, |
1715 |
new ArrayBlockingQueue<Runnable>(10)); |
1716 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1717 |
l.add(new StringTask()); |
1718 |
try { |
1719 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1720 |
shouldThrow(); |
1721 |
} catch (NullPointerException success) { |
1722 |
} finally { |
1723 |
joinPool(e); |
1724 |
} |
1725 |
} |
1726 |
|
1727 |
/** |
1728 |
* timed invokeAny(empty collection) throws IAE |
1729 |
*/ |
1730 |
public void testTimedInvokeAny2() throws Exception { |
1731 |
ExecutorService e = |
1732 |
new ThreadPoolExecutor(2, 2, |
1733 |
LONG_DELAY_MS, MILLISECONDS, |
1734 |
new ArrayBlockingQueue<Runnable>(10)); |
1735 |
try { |
1736 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1737 |
shouldThrow(); |
1738 |
} catch (IllegalArgumentException success) { |
1739 |
} finally { |
1740 |
joinPool(e); |
1741 |
} |
1742 |
} |
1743 |
|
1744 |
/** |
1745 |
* timed invokeAny(c) throws NPE if c has null elements |
1746 |
*/ |
1747 |
public void testTimedInvokeAny3() throws Exception { |
1748 |
final CountDownLatch latch = new CountDownLatch(1); |
1749 |
final ExecutorService e = |
1750 |
new ThreadPoolExecutor(2, 2, |
1751 |
LONG_DELAY_MS, MILLISECONDS, |
1752 |
new ArrayBlockingQueue<Runnable>(10)); |
1753 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1754 |
l.add(latchAwaitingStringTask(latch)); |
1755 |
l.add(null); |
1756 |
try { |
1757 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1758 |
shouldThrow(); |
1759 |
} catch (NullPointerException success) { |
1760 |
} finally { |
1761 |
latch.countDown(); |
1762 |
joinPool(e); |
1763 |
} |
1764 |
} |
1765 |
|
1766 |
/** |
1767 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1768 |
*/ |
1769 |
public void testTimedInvokeAny4() throws Exception { |
1770 |
ExecutorService e = |
1771 |
new ThreadPoolExecutor(2, 2, |
1772 |
LONG_DELAY_MS, MILLISECONDS, |
1773 |
new ArrayBlockingQueue<Runnable>(10)); |
1774 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1775 |
l.add(new NPETask()); |
1776 |
try { |
1777 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1778 |
shouldThrow(); |
1779 |
} catch (ExecutionException success) { |
1780 |
assertTrue(success.getCause() instanceof NullPointerException); |
1781 |
} finally { |
1782 |
joinPool(e); |
1783 |
} |
1784 |
} |
1785 |
|
1786 |
/** |
1787 |
* timed invokeAny(c) returns result of some task |
1788 |
*/ |
1789 |
public void testTimedInvokeAny5() throws Exception { |
1790 |
ExecutorService e = |
1791 |
new ThreadPoolExecutor(2, 2, |
1792 |
LONG_DELAY_MS, MILLISECONDS, |
1793 |
new ArrayBlockingQueue<Runnable>(10)); |
1794 |
try { |
1795 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1796 |
l.add(new StringTask()); |
1797 |
l.add(new StringTask()); |
1798 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1799 |
assertSame(TEST_STRING, result); |
1800 |
} finally { |
1801 |
joinPool(e); |
1802 |
} |
1803 |
} |
1804 |
|
1805 |
/** |
1806 |
* timed invokeAll(null) throws NPE |
1807 |
*/ |
1808 |
public void testTimedInvokeAll1() throws Exception { |
1809 |
ExecutorService e = |
1810 |
new ThreadPoolExecutor(2, 2, |
1811 |
LONG_DELAY_MS, MILLISECONDS, |
1812 |
new ArrayBlockingQueue<Runnable>(10)); |
1813 |
try { |
1814 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1815 |
shouldThrow(); |
1816 |
} catch (NullPointerException success) { |
1817 |
} finally { |
1818 |
joinPool(e); |
1819 |
} |
1820 |
} |
1821 |
|
1822 |
/** |
1823 |
* timed invokeAll(,,null) throws NPE |
1824 |
*/ |
1825 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1826 |
ExecutorService e = |
1827 |
new ThreadPoolExecutor(2, 2, |
1828 |
LONG_DELAY_MS, MILLISECONDS, |
1829 |
new ArrayBlockingQueue<Runnable>(10)); |
1830 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1831 |
l.add(new StringTask()); |
1832 |
try { |
1833 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1834 |
shouldThrow(); |
1835 |
} catch (NullPointerException success) { |
1836 |
} finally { |
1837 |
joinPool(e); |
1838 |
} |
1839 |
} |
1840 |
|
1841 |
/** |
1842 |
* timed invokeAll(empty collection) returns empty collection |
1843 |
*/ |
1844 |
public void testTimedInvokeAll2() throws InterruptedException { |
1845 |
ExecutorService e = |
1846 |
new ThreadPoolExecutor(2, 2, |
1847 |
LONG_DELAY_MS, MILLISECONDS, |
1848 |
new ArrayBlockingQueue<Runnable>(10)); |
1849 |
try { |
1850 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1851 |
assertTrue(r.isEmpty()); |
1852 |
} finally { |
1853 |
joinPool(e); |
1854 |
} |
1855 |
} |
1856 |
|
1857 |
/** |
1858 |
* timed invokeAll(c) throws NPE if c has null elements |
1859 |
*/ |
1860 |
public void testTimedInvokeAll3() throws Exception { |
1861 |
ExecutorService e = |
1862 |
new ThreadPoolExecutor(2, 2, |
1863 |
LONG_DELAY_MS, MILLISECONDS, |
1864 |
new ArrayBlockingQueue<Runnable>(10)); |
1865 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1866 |
l.add(new StringTask()); |
1867 |
l.add(null); |
1868 |
try { |
1869 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1870 |
shouldThrow(); |
1871 |
} catch (NullPointerException success) { |
1872 |
} finally { |
1873 |
joinPool(e); |
1874 |
} |
1875 |
} |
1876 |
|
1877 |
/** |
1878 |
* get of element of invokeAll(c) throws exception on failed task |
1879 |
*/ |
1880 |
public void testTimedInvokeAll4() throws Exception { |
1881 |
ExecutorService e = |
1882 |
new ThreadPoolExecutor(2, 2, |
1883 |
LONG_DELAY_MS, MILLISECONDS, |
1884 |
new ArrayBlockingQueue<Runnable>(10)); |
1885 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1886 |
l.add(new NPETask()); |
1887 |
List<Future<String>> futures = |
1888 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1889 |
assertEquals(1, futures.size()); |
1890 |
try { |
1891 |
futures.get(0).get(); |
1892 |
shouldThrow(); |
1893 |
} catch (ExecutionException success) { |
1894 |
assertTrue(success.getCause() instanceof NullPointerException); |
1895 |
} finally { |
1896 |
joinPool(e); |
1897 |
} |
1898 |
} |
1899 |
|
1900 |
/** |
1901 |
* timed invokeAll(c) returns results of all completed tasks |
1902 |
*/ |
1903 |
public void testTimedInvokeAll5() throws Exception { |
1904 |
ExecutorService e = |
1905 |
new ThreadPoolExecutor(2, 2, |
1906 |
LONG_DELAY_MS, MILLISECONDS, |
1907 |
new ArrayBlockingQueue<Runnable>(10)); |
1908 |
try { |
1909 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1910 |
l.add(new StringTask()); |
1911 |
l.add(new StringTask()); |
1912 |
List<Future<String>> futures = |
1913 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1914 |
assertEquals(2, futures.size()); |
1915 |
for (Future<String> future : futures) |
1916 |
assertSame(TEST_STRING, future.get()); |
1917 |
} finally { |
1918 |
joinPool(e); |
1919 |
} |
1920 |
} |
1921 |
|
1922 |
/** |
1923 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1924 |
*/ |
1925 |
public void testTimedInvokeAll6() throws Exception { |
1926 |
ExecutorService e = |
1927 |
new ThreadPoolExecutor(2, 2, |
1928 |
LONG_DELAY_MS, MILLISECONDS, |
1929 |
new ArrayBlockingQueue<Runnable>(10)); |
1930 |
try { |
1931 |
for (long timeout = timeoutMillis();;) { |
1932 |
List<Callable<String>> tasks = new ArrayList<>(); |
1933 |
tasks.add(new StringTask("0")); |
1934 |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1935 |
tasks.add(new StringTask("2")); |
1936 |
long startTime = System.nanoTime(); |
1937 |
List<Future<String>> futures = |
1938 |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1939 |
assertEquals(tasks.size(), futures.size()); |
1940 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1941 |
for (Future future : futures) |
1942 |
assertTrue(future.isDone()); |
1943 |
assertTrue(futures.get(1).isCancelled()); |
1944 |
try { |
1945 |
assertEquals("0", futures.get(0).get()); |
1946 |
assertEquals("2", futures.get(2).get()); |
1947 |
break; |
1948 |
} catch (CancellationException retryWithLongerTimeout) { |
1949 |
timeout *= 2; |
1950 |
if (timeout >= LONG_DELAY_MS / 2) |
1951 |
fail("expected exactly one task to be cancelled"); |
1952 |
} |
1953 |
} |
1954 |
} finally { |
1955 |
joinPool(e); |
1956 |
} |
1957 |
} |
1958 |
|
1959 |
/** |
1960 |
* Execution continues if there is at least one thread even if |
1961 |
* thread factory fails to create more |
1962 |
*/ |
1963 |
public void testFailingThreadFactory() throws InterruptedException { |
1964 |
final ExecutorService e = |
1965 |
new ThreadPoolExecutor(100, 100, |
1966 |
LONG_DELAY_MS, MILLISECONDS, |
1967 |
new LinkedBlockingQueue<Runnable>(), |
1968 |
new FailingThreadFactory()); |
1969 |
try { |
1970 |
final int TASKS = 100; |
1971 |
final CountDownLatch done = new CountDownLatch(TASKS); |
1972 |
for (int k = 0; k < TASKS; ++k) |
1973 |
e.execute(new CheckedRunnable() { |
1974 |
public void realRun() { |
1975 |
done.countDown(); |
1976 |
}}); |
1977 |
assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
1978 |
} finally { |
1979 |
joinPool(e); |
1980 |
} |
1981 |
} |
1982 |
|
1983 |
/** |
1984 |
* allowsCoreThreadTimeOut is by default false. |
1985 |
*/ |
1986 |
public void testAllowsCoreThreadTimeOut() { |
1987 |
final ThreadPoolExecutor p = |
1988 |
new ThreadPoolExecutor(2, 2, |
1989 |
1000, MILLISECONDS, |
1990 |
new ArrayBlockingQueue<Runnable>(10)); |
1991 |
assertFalse(p.allowsCoreThreadTimeOut()); |
1992 |
joinPool(p); |
1993 |
} |
1994 |
|
1995 |
/** |
1996 |
* allowCoreThreadTimeOut(true) causes idle threads to time out |
1997 |
*/ |
1998 |
public void testAllowCoreThreadTimeOut_true() throws Exception { |
1999 |
long keepAliveTime = timeoutMillis(); |
2000 |
final ThreadPoolExecutor p = |
2001 |
new ThreadPoolExecutor(2, 10, |
2002 |
keepAliveTime, MILLISECONDS, |
2003 |
new ArrayBlockingQueue<Runnable>(10)); |
2004 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
2005 |
try { |
2006 |
p.allowCoreThreadTimeOut(true); |
2007 |
p.execute(new CheckedRunnable() { |
2008 |
public void realRun() { |
2009 |
threadStarted.countDown(); |
2010 |
assertEquals(1, p.getPoolSize()); |
2011 |
}}); |
2012 |
await(threadStarted); |
2013 |
delay(keepAliveTime); |
2014 |
long startTime = System.nanoTime(); |
2015 |
while (p.getPoolSize() > 0 |
2016 |
&& millisElapsedSince(startTime) < LONG_DELAY_MS) |
2017 |
Thread.yield(); |
2018 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
2019 |
assertEquals(0, p.getPoolSize()); |
2020 |
} finally { |
2021 |
joinPool(p); |
2022 |
} |
2023 |
} |
2024 |
|
2025 |
/** |
2026 |
* allowCoreThreadTimeOut(false) causes idle threads not to time out |
2027 |
*/ |
2028 |
public void testAllowCoreThreadTimeOut_false() throws Exception { |
2029 |
long keepAliveTime = timeoutMillis(); |
2030 |
final ThreadPoolExecutor p = |
2031 |
new ThreadPoolExecutor(2, 10, |
2032 |
keepAliveTime, MILLISECONDS, |
2033 |
new ArrayBlockingQueue<Runnable>(10)); |
2034 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
2035 |
try { |
2036 |
p.allowCoreThreadTimeOut(false); |
2037 |
p.execute(new CheckedRunnable() { |
2038 |
public void realRun() throws InterruptedException { |
2039 |
threadStarted.countDown(); |
2040 |
assertTrue(p.getPoolSize() >= 1); |
2041 |
}}); |
2042 |
delay(2 * keepAliveTime); |
2043 |
assertTrue(p.getPoolSize() >= 1); |
2044 |
} finally { |
2045 |
joinPool(p); |
2046 |
} |
2047 |
} |
2048 |
|
2049 |
/** |
2050 |
* execute allows the same task to be submitted multiple times, even |
2051 |
* if rejected |
2052 |
*/ |
2053 |
public void testRejectedRecycledTask() throws InterruptedException { |
2054 |
final int nTasks = 1000; |
2055 |
final CountDownLatch done = new CountDownLatch(nTasks); |
2056 |
final Runnable recycledTask = new Runnable() { |
2057 |
public void run() { |
2058 |
done.countDown(); |
2059 |
}}; |
2060 |
final ThreadPoolExecutor p = |
2061 |
new ThreadPoolExecutor(1, 30, |
2062 |
60, SECONDS, |
2063 |
new ArrayBlockingQueue(30)); |
2064 |
try { |
2065 |
for (int i = 0; i < nTasks; ++i) { |
2066 |
for (;;) { |
2067 |
try { |
2068 |
p.execute(recycledTask); |
2069 |
break; |
2070 |
} |
2071 |
catch (RejectedExecutionException ignore) {} |
2072 |
} |
2073 |
} |
2074 |
// enough time to run all tasks |
2075 |
assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS)); |
2076 |
} finally { |
2077 |
joinPool(p); |
2078 |
} |
2079 |
} |
2080 |
|
2081 |
/** |
2082 |
* get(cancelled task) throws CancellationException |
2083 |
*/ |
2084 |
public void testGet_cancelled() throws Exception { |
2085 |
final ExecutorService e = |
2086 |
new ThreadPoolExecutor(1, 1, |
2087 |
LONG_DELAY_MS, MILLISECONDS, |
2088 |
new LinkedBlockingQueue<Runnable>()); |
2089 |
try { |
2090 |
final CountDownLatch blockerStarted = new CountDownLatch(1); |
2091 |
final CountDownLatch done = new CountDownLatch(1); |
2092 |
final List<Future<?>> futures = new ArrayList<>(); |
2093 |
for (int i = 0; i < 2; i++) { |
2094 |
Runnable r = new CheckedRunnable() { public void realRun() |
2095 |
throws Throwable { |
2096 |
blockerStarted.countDown(); |
2097 |
assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS)); |
2098 |
}}; |
2099 |
futures.add(e.submit(r)); |
2100 |
} |
2101 |
assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
2102 |
for (Future<?> future : futures) future.cancel(false); |
2103 |
for (Future<?> future : futures) { |
2104 |
try { |
2105 |
future.get(); |
2106 |
shouldThrow(); |
2107 |
} catch (CancellationException success) {} |
2108 |
try { |
2109 |
future.get(LONG_DELAY_MS, MILLISECONDS); |
2110 |
shouldThrow(); |
2111 |
} catch (CancellationException success) {} |
2112 |
assertTrue(future.isCancelled()); |
2113 |
assertTrue(future.isDone()); |
2114 |
} |
2115 |
done.countDown(); |
2116 |
} finally { |
2117 |
joinPool(e); |
2118 |
} |
2119 |
} |
2120 |
|
2121 |
} |