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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>()); |
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} |
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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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try (PoolCleaner cleaner = cleaner(p)) { |
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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() { done.countDown(); }}; |
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p.execute(task); |
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assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
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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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try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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final CountDownLatch done = new CountDownLatch(1); |
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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(LONG_DELAY_MS, MILLISECONDS)); |
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assertEquals(1, p.getActiveCount()); |
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done.countDown(); |
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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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/** |
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* setThreadFactory(null) throws NPE |
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*/ |
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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)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.setThreadFactory(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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} |
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|
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/** |
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* getRejectedExecutionHandler returns handler in constructor if not set |
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*/ |
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public void testGetRejectedExecutionHandler() { |
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final RejectedExecutionHandler handler = new NoOpREHandler(); |
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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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handler); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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assertSame(handler, p.getRejectedExecutionHandler()); |
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} |
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} |
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|
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/** |
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* setRejectedExecutionHandler sets the handler returned by |
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* getRejectedExecutionHandler |
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*/ |
298 |
public void testSetRejectedExecutionHandler() { |
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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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RejectedExecutionHandler handler = new NoOpREHandler(); |
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p.setRejectedExecutionHandler(handler); |
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assertSame(handler, p.getRejectedExecutionHandler()); |
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} |
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} |
309 |
|
310 |
/** |
311 |
* setRejectedExecutionHandler(null) throws NPE |
312 |
*/ |
313 |
public void testSetRejectedExecutionHandlerNull() { |
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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)); |
318 |
try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.setRejectedExecutionHandler(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
323 |
} |
324 |
} |
325 |
|
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/** |
327 |
* getLargestPoolSize increases, but doesn't overestimate, when |
328 |
* multiple threads active |
329 |
*/ |
330 |
public void testGetLargestPoolSize() throws InterruptedException { |
331 |
final int THREADS = 3; |
332 |
final CountDownLatch done = new CountDownLatch(1); |
333 |
final ThreadPoolExecutor p = |
334 |
new ThreadPoolExecutor(THREADS, THREADS, |
335 |
LONG_DELAY_MS, MILLISECONDS, |
336 |
new ArrayBlockingQueue<Runnable>(10)); |
337 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
338 |
assertEquals(0, p.getLargestPoolSize()); |
339 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
340 |
for (int i = 0; i < THREADS; i++) |
341 |
p.execute(new CheckedRunnable() { |
342 |
public void realRun() throws InterruptedException { |
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threadsStarted.countDown(); |
344 |
done.await(); |
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assertEquals(THREADS, p.getLargestPoolSize()); |
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}}); |
347 |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
348 |
assertEquals(THREADS, p.getLargestPoolSize()); |
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} |
350 |
assertEquals(THREADS, p.getLargestPoolSize()); |
351 |
} |
352 |
|
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/** |
354 |
* getMaximumPoolSize returns value given in constructor if not |
355 |
* otherwise set |
356 |
*/ |
357 |
public void testGetMaximumPoolSize() { |
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final ThreadPoolExecutor p = |
359 |
new ThreadPoolExecutor(2, 3, |
360 |
LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
362 |
try (PoolCleaner cleaner = cleaner(p)) { |
363 |
assertEquals(3, p.getMaximumPoolSize()); |
364 |
p.setMaximumPoolSize(5); |
365 |
assertEquals(5, p.getMaximumPoolSize()); |
366 |
p.setMaximumPoolSize(4); |
367 |
assertEquals(4, p.getMaximumPoolSize()); |
368 |
} |
369 |
} |
370 |
|
371 |
/** |
372 |
* getPoolSize increases, but doesn't overestimate, when threads |
373 |
* become active |
374 |
*/ |
375 |
public void testGetPoolSize() throws InterruptedException { |
376 |
final CountDownLatch done = new CountDownLatch(1); |
377 |
final ThreadPoolExecutor p = |
378 |
new ThreadPoolExecutor(1, 1, |
379 |
LONG_DELAY_MS, MILLISECONDS, |
380 |
new ArrayBlockingQueue<Runnable>(10)); |
381 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
382 |
assertEquals(0, p.getPoolSize()); |
383 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
384 |
p.execute(new CheckedRunnable() { |
385 |
public void realRun() throws InterruptedException { |
386 |
threadStarted.countDown(); |
387 |
assertEquals(1, p.getPoolSize()); |
388 |
done.await(); |
389 |
}}); |
390 |
assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
391 |
assertEquals(1, p.getPoolSize()); |
392 |
} |
393 |
} |
394 |
|
395 |
/** |
396 |
* getTaskCount increases, but doesn't overestimate, when tasks submitted |
397 |
*/ |
398 |
public void testGetTaskCount() throws InterruptedException { |
399 |
final int TASKS = 3; |
400 |
final CountDownLatch done = new CountDownLatch(1); |
401 |
final ThreadPoolExecutor p = |
402 |
new ThreadPoolExecutor(1, 1, |
403 |
LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
405 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
406 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
407 |
assertEquals(0, p.getTaskCount()); |
408 |
assertEquals(0, p.getCompletedTaskCount()); |
409 |
p.execute(new CheckedRunnable() { |
410 |
public void realRun() throws InterruptedException { |
411 |
threadStarted.countDown(); |
412 |
done.await(); |
413 |
}}); |
414 |
assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
415 |
assertEquals(1, p.getTaskCount()); |
416 |
assertEquals(0, p.getCompletedTaskCount()); |
417 |
for (int i = 0; i < TASKS; i++) { |
418 |
assertEquals(1 + i, p.getTaskCount()); |
419 |
p.execute(new CheckedRunnable() { |
420 |
public void realRun() throws InterruptedException { |
421 |
threadStarted.countDown(); |
422 |
assertEquals(1 + TASKS, p.getTaskCount()); |
423 |
done.await(); |
424 |
}}); |
425 |
} |
426 |
assertEquals(1 + TASKS, p.getTaskCount()); |
427 |
assertEquals(0, p.getCompletedTaskCount()); |
428 |
} |
429 |
assertEquals(1 + TASKS, p.getTaskCount()); |
430 |
assertEquals(1 + TASKS, p.getCompletedTaskCount()); |
431 |
} |
432 |
|
433 |
/** |
434 |
* isShutdown is false before shutdown, true after |
435 |
*/ |
436 |
public void testIsShutdown() { |
437 |
final ThreadPoolExecutor p = |
438 |
new ThreadPoolExecutor(1, 1, |
439 |
LONG_DELAY_MS, MILLISECONDS, |
440 |
new ArrayBlockingQueue<Runnable>(10)); |
441 |
try (PoolCleaner cleaner = cleaner(p)) { |
442 |
assertFalse(p.isShutdown()); |
443 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
444 |
assertTrue(p.isShutdown()); |
445 |
} |
446 |
} |
447 |
|
448 |
/** |
449 |
* awaitTermination on a non-shutdown pool times out |
450 |
*/ |
451 |
public void testAwaitTermination_timesOut() throws InterruptedException { |
452 |
final ThreadPoolExecutor p = |
453 |
new ThreadPoolExecutor(1, 1, |
454 |
LONG_DELAY_MS, MILLISECONDS, |
455 |
new ArrayBlockingQueue<Runnable>(10)); |
456 |
try (PoolCleaner cleaner = cleaner(p)) { |
457 |
assertFalse(p.isTerminated()); |
458 |
assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS)); |
459 |
assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
460 |
assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
461 |
assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
462 |
assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
463 |
assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
464 |
long timeoutNanos = 999999L; |
465 |
long startTime = System.nanoTime(); |
466 |
assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
467 |
assertTrue(System.nanoTime() - startTime >= timeoutNanos); |
468 |
assertFalse(p.isTerminated()); |
469 |
startTime = System.nanoTime(); |
470 |
long timeoutMillis = timeoutMillis(); |
471 |
assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS)); |
472 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
473 |
assertFalse(p.isTerminated()); |
474 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
475 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
476 |
assertTrue(p.isTerminated()); |
477 |
} |
478 |
} |
479 |
|
480 |
/** |
481 |
* isTerminated is false before termination, true after |
482 |
*/ |
483 |
public void testIsTerminated() throws InterruptedException { |
484 |
final ThreadPoolExecutor p = |
485 |
new ThreadPoolExecutor(1, 1, |
486 |
LONG_DELAY_MS, MILLISECONDS, |
487 |
new ArrayBlockingQueue<Runnable>(10)); |
488 |
try (PoolCleaner cleaner = cleaner(p)) { |
489 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
490 |
final CountDownLatch done = new CountDownLatch(1); |
491 |
assertFalse(p.isTerminating()); |
492 |
p.execute(new CheckedRunnable() { |
493 |
public void realRun() throws InterruptedException { |
494 |
assertFalse(p.isTerminating()); |
495 |
threadStarted.countDown(); |
496 |
done.await(); |
497 |
}}); |
498 |
assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
499 |
assertFalse(p.isTerminating()); |
500 |
done.countDown(); |
501 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
502 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
503 |
assertTrue(p.isTerminated()); |
504 |
assertFalse(p.isTerminating()); |
505 |
} |
506 |
} |
507 |
|
508 |
/** |
509 |
* isTerminating is not true when running or when terminated |
510 |
*/ |
511 |
public void testIsTerminating() throws InterruptedException { |
512 |
final ThreadPoolExecutor p = |
513 |
new ThreadPoolExecutor(1, 1, |
514 |
LONG_DELAY_MS, MILLISECONDS, |
515 |
new ArrayBlockingQueue<Runnable>(10)); |
516 |
try (PoolCleaner cleaner = cleaner(p)) { |
517 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
518 |
final CountDownLatch done = new CountDownLatch(1); |
519 |
assertFalse(p.isTerminating()); |
520 |
p.execute(new CheckedRunnable() { |
521 |
public void realRun() throws InterruptedException { |
522 |
assertFalse(p.isTerminating()); |
523 |
threadStarted.countDown(); |
524 |
done.await(); |
525 |
}}); |
526 |
assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
527 |
assertFalse(p.isTerminating()); |
528 |
done.countDown(); |
529 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
530 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
531 |
assertTrue(p.isTerminated()); |
532 |
assertFalse(p.isTerminating()); |
533 |
} |
534 |
} |
535 |
|
536 |
/** |
537 |
* getQueue returns the work queue, which contains queued tasks |
538 |
*/ |
539 |
public void testGetQueue() throws InterruptedException { |
540 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
541 |
final ThreadPoolExecutor p = |
542 |
new ThreadPoolExecutor(1, 1, |
543 |
LONG_DELAY_MS, MILLISECONDS, |
544 |
q); |
545 |
try (PoolCleaner cleaner = cleaner(p)) { |
546 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
547 |
final CountDownLatch done = new CountDownLatch(1); |
548 |
FutureTask[] tasks = new FutureTask[5]; |
549 |
for (int i = 0; i < tasks.length; i++) { |
550 |
Callable task = new CheckedCallable<Boolean>() { |
551 |
public Boolean realCall() throws InterruptedException { |
552 |
threadStarted.countDown(); |
553 |
assertSame(q, p.getQueue()); |
554 |
done.await(); |
555 |
return Boolean.TRUE; |
556 |
}}; |
557 |
tasks[i] = new FutureTask(task); |
558 |
p.execute(tasks[i]); |
559 |
} |
560 |
assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
561 |
assertSame(q, p.getQueue()); |
562 |
assertFalse(q.contains(tasks[0])); |
563 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
564 |
assertEquals(tasks.length - 1, q.size()); |
565 |
done.countDown(); |
566 |
} |
567 |
} |
568 |
|
569 |
/** |
570 |
* remove(task) removes queued task, and fails to remove active task |
571 |
*/ |
572 |
public void testRemove() throws InterruptedException { |
573 |
BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
574 |
final ThreadPoolExecutor p = |
575 |
new ThreadPoolExecutor(1, 1, |
576 |
LONG_DELAY_MS, MILLISECONDS, |
577 |
q); |
578 |
try (PoolCleaner cleaner = cleaner(p)) { |
579 |
Runnable[] tasks = new Runnable[6]; |
580 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
581 |
final CountDownLatch done = new CountDownLatch(1); |
582 |
for (int i = 0; i < tasks.length; i++) { |
583 |
tasks[i] = new CheckedRunnable() { |
584 |
public void realRun() throws InterruptedException { |
585 |
threadStarted.countDown(); |
586 |
done.await(); |
587 |
}}; |
588 |
p.execute(tasks[i]); |
589 |
} |
590 |
assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
591 |
assertFalse(p.remove(tasks[0])); |
592 |
assertTrue(q.contains(tasks[4])); |
593 |
assertTrue(q.contains(tasks[3])); |
594 |
assertTrue(p.remove(tasks[4])); |
595 |
assertFalse(p.remove(tasks[4])); |
596 |
assertFalse(q.contains(tasks[4])); |
597 |
assertTrue(q.contains(tasks[3])); |
598 |
assertTrue(p.remove(tasks[3])); |
599 |
assertFalse(q.contains(tasks[3])); |
600 |
done.countDown(); |
601 |
} |
602 |
} |
603 |
|
604 |
/** |
605 |
* purge removes cancelled tasks from the queue |
606 |
*/ |
607 |
public void testPurge() throws InterruptedException { |
608 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
609 |
final CountDownLatch done = new CountDownLatch(1); |
610 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
611 |
final ThreadPoolExecutor p = |
612 |
new ThreadPoolExecutor(1, 1, |
613 |
LONG_DELAY_MS, MILLISECONDS, |
614 |
q); |
615 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
616 |
FutureTask[] tasks = new FutureTask[5]; |
617 |
for (int i = 0; i < tasks.length; i++) { |
618 |
Callable task = new CheckedCallable<Boolean>() { |
619 |
public Boolean realCall() throws InterruptedException { |
620 |
threadStarted.countDown(); |
621 |
done.await(); |
622 |
return Boolean.TRUE; |
623 |
}}; |
624 |
tasks[i] = new FutureTask(task); |
625 |
p.execute(tasks[i]); |
626 |
} |
627 |
assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
628 |
assertEquals(tasks.length, p.getTaskCount()); |
629 |
assertEquals(tasks.length - 1, q.size()); |
630 |
assertEquals(1L, p.getActiveCount()); |
631 |
assertEquals(0L, p.getCompletedTaskCount()); |
632 |
tasks[4].cancel(true); |
633 |
tasks[3].cancel(false); |
634 |
p.purge(); |
635 |
assertEquals(tasks.length - 3, q.size()); |
636 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
637 |
p.purge(); // Nothing to do |
638 |
assertEquals(tasks.length - 3, q.size()); |
639 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
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 |
final 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 |
try (PoolCleaner cleaner = cleaner(p)) { |
1033 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1034 |
final CountDownLatch done = new CountDownLatch(1); |
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(LONG_DELAY_MS, MILLISECONDS)); |
1047 |
t.interrupt(); |
1048 |
awaitTermination(t, MEDIUM_DELAY_MS); |
1049 |
done.countDown(); |
1050 |
} |
1051 |
} |
1052 |
|
1053 |
/** |
1054 |
* execute throws RejectedExecutionException if saturated. |
1055 |
*/ |
1056 |
public void testSaturatedExecute() { |
1057 |
final ThreadPoolExecutor p = |
1058 |
new ThreadPoolExecutor(1, 1, |
1059 |
LONG_DELAY_MS, MILLISECONDS, |
1060 |
new ArrayBlockingQueue<Runnable>(1)); |
1061 |
try (PoolCleaner cleaner = cleaner(p)) { |
1062 |
final CountDownLatch done = new CountDownLatch(1); |
1063 |
Runnable task = new CheckedRunnable() { |
1064 |
public void realRun() throws InterruptedException { |
1065 |
done.await(); |
1066 |
}}; |
1067 |
for (int i = 0; i < 2; ++i) |
1068 |
p.execute(task); |
1069 |
for (int i = 0; i < 2; ++i) { |
1070 |
try { |
1071 |
p.execute(task); |
1072 |
shouldThrow(); |
1073 |
} catch (RejectedExecutionException success) {} |
1074 |
assertTrue(p.getTaskCount() <= 2); |
1075 |
} |
1076 |
done.countDown(); |
1077 |
} |
1078 |
} |
1079 |
|
1080 |
/** |
1081 |
* submit(runnable) throws RejectedExecutionException if saturated. |
1082 |
*/ |
1083 |
public void testSaturatedSubmitRunnable() { |
1084 |
final ThreadPoolExecutor p = |
1085 |
new ThreadPoolExecutor(1, 1, |
1086 |
LONG_DELAY_MS, MILLISECONDS, |
1087 |
new ArrayBlockingQueue<Runnable>(1)); |
1088 |
try (PoolCleaner cleaner = cleaner(p)) { |
1089 |
final CountDownLatch done = new CountDownLatch(1); |
1090 |
Runnable task = new CheckedRunnable() { |
1091 |
public void realRun() throws InterruptedException { |
1092 |
done.await(); |
1093 |
}}; |
1094 |
for (int i = 0; i < 2; ++i) |
1095 |
p.submit(task); |
1096 |
for (int i = 0; i < 2; ++i) { |
1097 |
try { |
1098 |
p.execute(task); |
1099 |
shouldThrow(); |
1100 |
} catch (RejectedExecutionException success) {} |
1101 |
assertTrue(p.getTaskCount() <= 2); |
1102 |
} |
1103 |
done.countDown(); |
1104 |
} |
1105 |
} |
1106 |
|
1107 |
/** |
1108 |
* submit(callable) throws RejectedExecutionException if saturated. |
1109 |
*/ |
1110 |
public void testSaturatedSubmitCallable() { |
1111 |
final ThreadPoolExecutor p = |
1112 |
new ThreadPoolExecutor(1, 1, |
1113 |
LONG_DELAY_MS, MILLISECONDS, |
1114 |
new ArrayBlockingQueue<Runnable>(1)); |
1115 |
try (PoolCleaner cleaner = cleaner(p)) { |
1116 |
final CountDownLatch done = new CountDownLatch(1); |
1117 |
Runnable task = new CheckedRunnable() { |
1118 |
public void realRun() throws InterruptedException { |
1119 |
done.await(); |
1120 |
}}; |
1121 |
for (int i = 0; i < 2; ++i) |
1122 |
p.submit(Executors.callable(task)); |
1123 |
for (int i = 0; i < 2; ++i) { |
1124 |
try { |
1125 |
p.execute(task); |
1126 |
shouldThrow(); |
1127 |
} catch (RejectedExecutionException success) {} |
1128 |
assertTrue(p.getTaskCount() <= 2); |
1129 |
} |
1130 |
done.countDown(); |
1131 |
} |
1132 |
} |
1133 |
|
1134 |
/** |
1135 |
* executor using CallerRunsPolicy runs task if saturated. |
1136 |
*/ |
1137 |
public void testSaturatedExecute2() { |
1138 |
final ThreadPoolExecutor p = |
1139 |
new ThreadPoolExecutor(1, 1, |
1140 |
LONG_DELAY_MS, |
1141 |
MILLISECONDS, |
1142 |
new ArrayBlockingQueue<Runnable>(1), |
1143 |
new ThreadPoolExecutor.CallerRunsPolicy()); |
1144 |
try (PoolCleaner cleaner = cleaner(p)) { |
1145 |
final CountDownLatch done = new CountDownLatch(1); |
1146 |
Runnable blocker = new CheckedRunnable() { |
1147 |
public void realRun() throws InterruptedException { |
1148 |
done.await(); |
1149 |
}}; |
1150 |
p.execute(blocker); |
1151 |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1152 |
for (int i = 0; i < tasks.length; i++) |
1153 |
tasks[i] = new TrackedNoOpRunnable(); |
1154 |
for (int i = 0; i < tasks.length; i++) |
1155 |
p.execute(tasks[i]); |
1156 |
for (int i = 1; i < tasks.length; i++) |
1157 |
assertTrue(tasks[i].done); |
1158 |
assertFalse(tasks[0].done); // waiting in queue |
1159 |
done.countDown(); |
1160 |
} |
1161 |
} |
1162 |
|
1163 |
/** |
1164 |
* executor using DiscardPolicy drops task if saturated. |
1165 |
*/ |
1166 |
public void testSaturatedExecute3() { |
1167 |
final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1168 |
for (int i = 0; i < tasks.length; ++i) |
1169 |
tasks[i] = new TrackedNoOpRunnable(); |
1170 |
final ThreadPoolExecutor p = |
1171 |
new ThreadPoolExecutor(1, 1, |
1172 |
LONG_DELAY_MS, MILLISECONDS, |
1173 |
new ArrayBlockingQueue<Runnable>(1), |
1174 |
new ThreadPoolExecutor.DiscardPolicy()); |
1175 |
try (PoolCleaner cleaner = cleaner(p)) { |
1176 |
final CountDownLatch done = new CountDownLatch(1); |
1177 |
p.execute(awaiter(done)); |
1178 |
|
1179 |
for (TrackedNoOpRunnable task : tasks) |
1180 |
p.execute(task); |
1181 |
for (int i = 1; i < tasks.length; i++) |
1182 |
assertFalse(tasks[i].done); |
1183 |
done.countDown(); |
1184 |
} |
1185 |
for (int i = 1; i < tasks.length; i++) |
1186 |
assertFalse(tasks[i].done); |
1187 |
assertTrue(tasks[0].done); // was waiting in queue |
1188 |
} |
1189 |
|
1190 |
/** |
1191 |
* executor using DiscardOldestPolicy drops oldest task if saturated. |
1192 |
*/ |
1193 |
public void testSaturatedExecute4() { |
1194 |
final CountDownLatch done = new CountDownLatch(1); |
1195 |
LatchAwaiter r1 = awaiter(done); |
1196 |
LatchAwaiter r2 = awaiter(done); |
1197 |
LatchAwaiter r3 = awaiter(done); |
1198 |
final ThreadPoolExecutor p = |
1199 |
new ThreadPoolExecutor(1, 1, |
1200 |
LONG_DELAY_MS, MILLISECONDS, |
1201 |
new ArrayBlockingQueue<Runnable>(1), |
1202 |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1203 |
try (PoolCleaner cleaner = cleaner(p)) { |
1204 |
assertEquals(LatchAwaiter.NEW, r1.state); |
1205 |
assertEquals(LatchAwaiter.NEW, r2.state); |
1206 |
assertEquals(LatchAwaiter.NEW, r3.state); |
1207 |
p.execute(r1); |
1208 |
p.execute(r2); |
1209 |
assertTrue(p.getQueue().contains(r2)); |
1210 |
p.execute(r3); |
1211 |
assertFalse(p.getQueue().contains(r2)); |
1212 |
assertTrue(p.getQueue().contains(r3)); |
1213 |
done.countDown(); |
1214 |
} |
1215 |
assertEquals(LatchAwaiter.DONE, r1.state); |
1216 |
assertEquals(LatchAwaiter.NEW, r2.state); |
1217 |
assertEquals(LatchAwaiter.DONE, r3.state); |
1218 |
} |
1219 |
|
1220 |
/** |
1221 |
* execute throws RejectedExecutionException if shutdown |
1222 |
*/ |
1223 |
public void testRejectedExecutionExceptionOnShutdown() { |
1224 |
final ThreadPoolExecutor p = |
1225 |
new ThreadPoolExecutor(1, 1, |
1226 |
LONG_DELAY_MS, MILLISECONDS, |
1227 |
new ArrayBlockingQueue<Runnable>(1)); |
1228 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1229 |
try (PoolCleaner cleaner = cleaner(p)) { |
1230 |
try { |
1231 |
p.execute(new NoOpRunnable()); |
1232 |
shouldThrow(); |
1233 |
} catch (RejectedExecutionException success) {} |
1234 |
} |
1235 |
} |
1236 |
|
1237 |
/** |
1238 |
* execute using CallerRunsPolicy drops task on shutdown |
1239 |
*/ |
1240 |
public void testCallerRunsOnShutdown() { |
1241 |
RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
1242 |
final ThreadPoolExecutor p = |
1243 |
new ThreadPoolExecutor(1, 1, |
1244 |
LONG_DELAY_MS, MILLISECONDS, |
1245 |
new ArrayBlockingQueue<Runnable>(1), h); |
1246 |
|
1247 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1248 |
try (PoolCleaner cleaner = cleaner(p)) { |
1249 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1250 |
p.execute(r); |
1251 |
assertFalse(r.done); |
1252 |
} |
1253 |
} |
1254 |
|
1255 |
/** |
1256 |
* execute using DiscardPolicy drops task on shutdown |
1257 |
*/ |
1258 |
public void testDiscardOnShutdown() { |
1259 |
final ThreadPoolExecutor p = |
1260 |
new ThreadPoolExecutor(1, 1, |
1261 |
LONG_DELAY_MS, MILLISECONDS, |
1262 |
new ArrayBlockingQueue<Runnable>(1), |
1263 |
new ThreadPoolExecutor.DiscardPolicy()); |
1264 |
|
1265 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1266 |
try (PoolCleaner cleaner = cleaner(p)) { |
1267 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1268 |
p.execute(r); |
1269 |
assertFalse(r.done); |
1270 |
} |
1271 |
} |
1272 |
|
1273 |
/** |
1274 |
* execute using DiscardOldestPolicy drops task on shutdown |
1275 |
*/ |
1276 |
public void testDiscardOldestOnShutdown() { |
1277 |
final ThreadPoolExecutor p = |
1278 |
new ThreadPoolExecutor(1, 1, |
1279 |
LONG_DELAY_MS, MILLISECONDS, |
1280 |
new ArrayBlockingQueue<Runnable>(1), |
1281 |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1282 |
|
1283 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1284 |
try (PoolCleaner cleaner = cleaner(p)) { |
1285 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1286 |
p.execute(r); |
1287 |
assertFalse(r.done); |
1288 |
} |
1289 |
} |
1290 |
|
1291 |
/** |
1292 |
* execute(null) throws NPE |
1293 |
*/ |
1294 |
public void testExecuteNull() { |
1295 |
final ThreadPoolExecutor p = |
1296 |
new ThreadPoolExecutor(1, 2, |
1297 |
1L, SECONDS, |
1298 |
new ArrayBlockingQueue<Runnable>(10)); |
1299 |
try (PoolCleaner cleaner = cleaner(p)) { |
1300 |
try { |
1301 |
p.execute(null); |
1302 |
shouldThrow(); |
1303 |
} catch (NullPointerException success) {} |
1304 |
} |
1305 |
} |
1306 |
|
1307 |
/** |
1308 |
* setCorePoolSize of negative value throws IllegalArgumentException |
1309 |
*/ |
1310 |
public void testCorePoolSizeIllegalArgumentException() { |
1311 |
final ThreadPoolExecutor p = |
1312 |
new ThreadPoolExecutor(1, 2, |
1313 |
LONG_DELAY_MS, MILLISECONDS, |
1314 |
new ArrayBlockingQueue<Runnable>(10)); |
1315 |
try (PoolCleaner cleaner = cleaner(p)) { |
1316 |
try { |
1317 |
p.setCorePoolSize(-1); |
1318 |
shouldThrow(); |
1319 |
} catch (IllegalArgumentException success) {} |
1320 |
} |
1321 |
} |
1322 |
|
1323 |
/** |
1324 |
* setMaximumPoolSize(int) throws IllegalArgumentException if |
1325 |
* given a value less the core pool size |
1326 |
*/ |
1327 |
public void testMaximumPoolSizeIllegalArgumentException() { |
1328 |
final ThreadPoolExecutor p = |
1329 |
new ThreadPoolExecutor(2, 3, |
1330 |
LONG_DELAY_MS, MILLISECONDS, |
1331 |
new ArrayBlockingQueue<Runnable>(10)); |
1332 |
try (PoolCleaner cleaner = cleaner(p)) { |
1333 |
try { |
1334 |
p.setMaximumPoolSize(1); |
1335 |
shouldThrow(); |
1336 |
} catch (IllegalArgumentException success) {} |
1337 |
} |
1338 |
} |
1339 |
|
1340 |
/** |
1341 |
* setMaximumPoolSize throws IllegalArgumentException |
1342 |
* if given a negative value |
1343 |
*/ |
1344 |
public void testMaximumPoolSizeIllegalArgumentException2() { |
1345 |
final ThreadPoolExecutor p = |
1346 |
new ThreadPoolExecutor(2, 3, |
1347 |
LONG_DELAY_MS, MILLISECONDS, |
1348 |
new ArrayBlockingQueue<Runnable>(10)); |
1349 |
try (PoolCleaner cleaner = cleaner(p)) { |
1350 |
try { |
1351 |
p.setMaximumPoolSize(-1); |
1352 |
shouldThrow(); |
1353 |
} catch (IllegalArgumentException success) {} |
1354 |
} |
1355 |
} |
1356 |
|
1357 |
/** |
1358 |
* Configuration changes that allow core pool size greater than |
1359 |
* max pool size result in IllegalArgumentException. |
1360 |
*/ |
1361 |
public void testPoolSizeInvariants() { |
1362 |
final ThreadPoolExecutor p = |
1363 |
new ThreadPoolExecutor(1, 1, |
1364 |
LONG_DELAY_MS, MILLISECONDS, |
1365 |
new ArrayBlockingQueue<Runnable>(10)); |
1366 |
try (PoolCleaner cleaner = cleaner(p)) { |
1367 |
for (int s = 1; s < 5; s++) { |
1368 |
p.setMaximumPoolSize(s); |
1369 |
p.setCorePoolSize(s); |
1370 |
try { |
1371 |
p.setMaximumPoolSize(s - 1); |
1372 |
shouldThrow(); |
1373 |
} catch (IllegalArgumentException success) {} |
1374 |
assertEquals(s, p.getCorePoolSize()); |
1375 |
assertEquals(s, p.getMaximumPoolSize()); |
1376 |
try { |
1377 |
p.setCorePoolSize(s + 1); |
1378 |
shouldThrow(); |
1379 |
} catch (IllegalArgumentException success) {} |
1380 |
assertEquals(s, p.getCorePoolSize()); |
1381 |
assertEquals(s, p.getMaximumPoolSize()); |
1382 |
} |
1383 |
} |
1384 |
} |
1385 |
|
1386 |
/** |
1387 |
* setKeepAliveTime throws IllegalArgumentException |
1388 |
* when given a negative value |
1389 |
*/ |
1390 |
public void testKeepAliveTimeIllegalArgumentException() { |
1391 |
final ThreadPoolExecutor p = |
1392 |
new ThreadPoolExecutor(2, 3, |
1393 |
LONG_DELAY_MS, MILLISECONDS, |
1394 |
new ArrayBlockingQueue<Runnable>(10)); |
1395 |
try (PoolCleaner cleaner = cleaner(p)) { |
1396 |
try { |
1397 |
p.setKeepAliveTime(-1, MILLISECONDS); |
1398 |
shouldThrow(); |
1399 |
} catch (IllegalArgumentException success) {} |
1400 |
} |
1401 |
} |
1402 |
|
1403 |
/** |
1404 |
* terminated() is called on termination |
1405 |
*/ |
1406 |
public void testTerminated() { |
1407 |
ExtendedTPE p = new ExtendedTPE(); |
1408 |
try (PoolCleaner cleaner = cleaner(p)) { |
1409 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1410 |
assertTrue(p.terminatedCalled()); |
1411 |
assertTrue(p.isShutdown()); |
1412 |
} |
1413 |
} |
1414 |
|
1415 |
/** |
1416 |
* beforeExecute and afterExecute are called when executing task |
1417 |
*/ |
1418 |
public void testBeforeAfter() throws InterruptedException { |
1419 |
ExtendedTPE p = new ExtendedTPE(); |
1420 |
try (PoolCleaner cleaner = cleaner(p)) { |
1421 |
final CountDownLatch done = new CountDownLatch(1); |
1422 |
p.execute(new CheckedRunnable() { |
1423 |
public void realRun() { |
1424 |
done.countDown(); |
1425 |
}}); |
1426 |
await(p.afterCalled); |
1427 |
assertEquals(0, done.getCount()); |
1428 |
assertTrue(p.afterCalled()); |
1429 |
assertTrue(p.beforeCalled()); |
1430 |
} |
1431 |
} |
1432 |
|
1433 |
/** |
1434 |
* completed submit of callable returns result |
1435 |
*/ |
1436 |
public void testSubmitCallable() throws Exception { |
1437 |
final ExecutorService e = |
1438 |
new ThreadPoolExecutor(2, 2, |
1439 |
LONG_DELAY_MS, MILLISECONDS, |
1440 |
new ArrayBlockingQueue<Runnable>(10)); |
1441 |
try (PoolCleaner cleaner = cleaner(e)) { |
1442 |
Future<String> future = e.submit(new StringTask()); |
1443 |
String result = future.get(); |
1444 |
assertSame(TEST_STRING, result); |
1445 |
} |
1446 |
} |
1447 |
|
1448 |
/** |
1449 |
* completed submit of runnable returns successfully |
1450 |
*/ |
1451 |
public void testSubmitRunnable() throws Exception { |
1452 |
final ExecutorService e = |
1453 |
new ThreadPoolExecutor(2, 2, |
1454 |
LONG_DELAY_MS, MILLISECONDS, |
1455 |
new ArrayBlockingQueue<Runnable>(10)); |
1456 |
try (PoolCleaner cleaner = cleaner(e)) { |
1457 |
Future<?> future = e.submit(new NoOpRunnable()); |
1458 |
future.get(); |
1459 |
assertTrue(future.isDone()); |
1460 |
} |
1461 |
} |
1462 |
|
1463 |
/** |
1464 |
* completed submit of (runnable, result) returns result |
1465 |
*/ |
1466 |
public void testSubmitRunnable2() throws Exception { |
1467 |
final ExecutorService e = |
1468 |
new ThreadPoolExecutor(2, 2, |
1469 |
LONG_DELAY_MS, MILLISECONDS, |
1470 |
new ArrayBlockingQueue<Runnable>(10)); |
1471 |
try (PoolCleaner cleaner = cleaner(e)) { |
1472 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
1473 |
String result = future.get(); |
1474 |
assertSame(TEST_STRING, result); |
1475 |
} |
1476 |
} |
1477 |
|
1478 |
/** |
1479 |
* invokeAny(null) throws NPE |
1480 |
*/ |
1481 |
public void testInvokeAny1() throws Exception { |
1482 |
final ExecutorService e = |
1483 |
new ThreadPoolExecutor(2, 2, |
1484 |
LONG_DELAY_MS, MILLISECONDS, |
1485 |
new ArrayBlockingQueue<Runnable>(10)); |
1486 |
try (PoolCleaner cleaner = cleaner(e)) { |
1487 |
try { |
1488 |
e.invokeAny(null); |
1489 |
shouldThrow(); |
1490 |
} catch (NullPointerException success) {} |
1491 |
} |
1492 |
} |
1493 |
|
1494 |
/** |
1495 |
* invokeAny(empty collection) throws IAE |
1496 |
*/ |
1497 |
public void testInvokeAny2() throws Exception { |
1498 |
final ExecutorService e = |
1499 |
new ThreadPoolExecutor(2, 2, |
1500 |
LONG_DELAY_MS, MILLISECONDS, |
1501 |
new ArrayBlockingQueue<Runnable>(10)); |
1502 |
try (PoolCleaner cleaner = cleaner(e)) { |
1503 |
try { |
1504 |
e.invokeAny(new ArrayList<Callable<String>>()); |
1505 |
shouldThrow(); |
1506 |
} catch (IllegalArgumentException success) {} |
1507 |
} |
1508 |
} |
1509 |
|
1510 |
/** |
1511 |
* invokeAny(c) throws NPE if c has null elements |
1512 |
*/ |
1513 |
public void testInvokeAny3() throws Exception { |
1514 |
final CountDownLatch latch = new CountDownLatch(1); |
1515 |
final ExecutorService e = |
1516 |
new ThreadPoolExecutor(2, 2, |
1517 |
LONG_DELAY_MS, MILLISECONDS, |
1518 |
new ArrayBlockingQueue<Runnable>(10)); |
1519 |
try (PoolCleaner cleaner = cleaner(e)) { |
1520 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1521 |
l.add(latchAwaitingStringTask(latch)); |
1522 |
l.add(null); |
1523 |
try { |
1524 |
e.invokeAny(l); |
1525 |
shouldThrow(); |
1526 |
} catch (NullPointerException success) {} |
1527 |
latch.countDown(); |
1528 |
} |
1529 |
} |
1530 |
|
1531 |
/** |
1532 |
* invokeAny(c) throws ExecutionException if no task completes |
1533 |
*/ |
1534 |
public void testInvokeAny4() throws Exception { |
1535 |
final ExecutorService e = |
1536 |
new ThreadPoolExecutor(2, 2, |
1537 |
LONG_DELAY_MS, MILLISECONDS, |
1538 |
new ArrayBlockingQueue<Runnable>(10)); |
1539 |
try (PoolCleaner cleaner = cleaner(e)) { |
1540 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1541 |
l.add(new NPETask()); |
1542 |
try { |
1543 |
e.invokeAny(l); |
1544 |
shouldThrow(); |
1545 |
} catch (ExecutionException success) { |
1546 |
assertTrue(success.getCause() instanceof NullPointerException); |
1547 |
} |
1548 |
} |
1549 |
} |
1550 |
|
1551 |
/** |
1552 |
* invokeAny(c) returns result of some task |
1553 |
*/ |
1554 |
public void testInvokeAny5() throws Exception { |
1555 |
final ExecutorService e = |
1556 |
new ThreadPoolExecutor(2, 2, |
1557 |
LONG_DELAY_MS, MILLISECONDS, |
1558 |
new ArrayBlockingQueue<Runnable>(10)); |
1559 |
try (PoolCleaner cleaner = cleaner(e)) { |
1560 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1561 |
l.add(new StringTask()); |
1562 |
l.add(new StringTask()); |
1563 |
String result = e.invokeAny(l); |
1564 |
assertSame(TEST_STRING, result); |
1565 |
} |
1566 |
} |
1567 |
|
1568 |
/** |
1569 |
* invokeAll(null) throws NPE |
1570 |
*/ |
1571 |
public void testInvokeAll1() throws Exception { |
1572 |
final ExecutorService e = |
1573 |
new ThreadPoolExecutor(2, 2, |
1574 |
LONG_DELAY_MS, MILLISECONDS, |
1575 |
new ArrayBlockingQueue<Runnable>(10)); |
1576 |
try (PoolCleaner cleaner = cleaner(e)) { |
1577 |
try { |
1578 |
e.invokeAll(null); |
1579 |
shouldThrow(); |
1580 |
} catch (NullPointerException success) {} |
1581 |
} |
1582 |
} |
1583 |
|
1584 |
/** |
1585 |
* invokeAll(empty collection) returns empty collection |
1586 |
*/ |
1587 |
public void testInvokeAll2() throws InterruptedException { |
1588 |
final ExecutorService e = |
1589 |
new ThreadPoolExecutor(2, 2, |
1590 |
LONG_DELAY_MS, MILLISECONDS, |
1591 |
new ArrayBlockingQueue<Runnable>(10)); |
1592 |
try (PoolCleaner cleaner = cleaner(e)) { |
1593 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
1594 |
assertTrue(r.isEmpty()); |
1595 |
} |
1596 |
} |
1597 |
|
1598 |
/** |
1599 |
* invokeAll(c) throws NPE if c has null elements |
1600 |
*/ |
1601 |
public void testInvokeAll3() throws Exception { |
1602 |
final ExecutorService e = |
1603 |
new ThreadPoolExecutor(2, 2, |
1604 |
LONG_DELAY_MS, MILLISECONDS, |
1605 |
new ArrayBlockingQueue<Runnable>(10)); |
1606 |
try (PoolCleaner cleaner = cleaner(e)) { |
1607 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1608 |
l.add(new StringTask()); |
1609 |
l.add(null); |
1610 |
try { |
1611 |
e.invokeAll(l); |
1612 |
shouldThrow(); |
1613 |
} catch (NullPointerException success) {} |
1614 |
} |
1615 |
} |
1616 |
|
1617 |
/** |
1618 |
* get of element of invokeAll(c) throws exception on failed task |
1619 |
*/ |
1620 |
public void testInvokeAll4() throws Exception { |
1621 |
final ExecutorService e = |
1622 |
new ThreadPoolExecutor(2, 2, |
1623 |
LONG_DELAY_MS, MILLISECONDS, |
1624 |
new ArrayBlockingQueue<Runnable>(10)); |
1625 |
try (PoolCleaner cleaner = cleaner(e)) { |
1626 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1627 |
l.add(new NPETask()); |
1628 |
List<Future<String>> futures = e.invokeAll(l); |
1629 |
assertEquals(1, futures.size()); |
1630 |
try { |
1631 |
futures.get(0).get(); |
1632 |
shouldThrow(); |
1633 |
} catch (ExecutionException success) { |
1634 |
assertTrue(success.getCause() instanceof NullPointerException); |
1635 |
} |
1636 |
} |
1637 |
} |
1638 |
|
1639 |
/** |
1640 |
* invokeAll(c) returns results of all completed tasks |
1641 |
*/ |
1642 |
public void testInvokeAll5() throws Exception { |
1643 |
final ExecutorService e = |
1644 |
new ThreadPoolExecutor(2, 2, |
1645 |
LONG_DELAY_MS, MILLISECONDS, |
1646 |
new ArrayBlockingQueue<Runnable>(10)); |
1647 |
try (PoolCleaner cleaner = cleaner(e)) { |
1648 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1649 |
l.add(new StringTask()); |
1650 |
l.add(new StringTask()); |
1651 |
List<Future<String>> futures = e.invokeAll(l); |
1652 |
assertEquals(2, futures.size()); |
1653 |
for (Future<String> future : futures) |
1654 |
assertSame(TEST_STRING, future.get()); |
1655 |
} |
1656 |
} |
1657 |
|
1658 |
/** |
1659 |
* timed invokeAny(null) throws NPE |
1660 |
*/ |
1661 |
public void testTimedInvokeAny1() throws Exception { |
1662 |
final ExecutorService e = |
1663 |
new ThreadPoolExecutor(2, 2, |
1664 |
LONG_DELAY_MS, MILLISECONDS, |
1665 |
new ArrayBlockingQueue<Runnable>(10)); |
1666 |
try (PoolCleaner cleaner = cleaner(e)) { |
1667 |
try { |
1668 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1669 |
shouldThrow(); |
1670 |
} catch (NullPointerException success) {} |
1671 |
} |
1672 |
} |
1673 |
|
1674 |
/** |
1675 |
* timed invokeAny(,,null) throws NPE |
1676 |
*/ |
1677 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1678 |
final ExecutorService e = |
1679 |
new ThreadPoolExecutor(2, 2, |
1680 |
LONG_DELAY_MS, MILLISECONDS, |
1681 |
new ArrayBlockingQueue<Runnable>(10)); |
1682 |
try (PoolCleaner cleaner = cleaner(e)) { |
1683 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1684 |
l.add(new StringTask()); |
1685 |
try { |
1686 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1687 |
shouldThrow(); |
1688 |
} catch (NullPointerException success) {} |
1689 |
} |
1690 |
} |
1691 |
|
1692 |
/** |
1693 |
* timed invokeAny(empty collection) throws IAE |
1694 |
*/ |
1695 |
public void testTimedInvokeAny2() throws Exception { |
1696 |
final ExecutorService e = |
1697 |
new ThreadPoolExecutor(2, 2, |
1698 |
LONG_DELAY_MS, MILLISECONDS, |
1699 |
new ArrayBlockingQueue<Runnable>(10)); |
1700 |
try (PoolCleaner cleaner = cleaner(e)) { |
1701 |
try { |
1702 |
e.invokeAny(new ArrayList<Callable<String>>(), |
1703 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1704 |
shouldThrow(); |
1705 |
} catch (IllegalArgumentException success) {} |
1706 |
} |
1707 |
} |
1708 |
|
1709 |
/** |
1710 |
* timed invokeAny(c) throws NPE if c has null elements |
1711 |
*/ |
1712 |
public void testTimedInvokeAny3() throws Exception { |
1713 |
final CountDownLatch latch = new CountDownLatch(1); |
1714 |
final ExecutorService e = |
1715 |
new ThreadPoolExecutor(2, 2, |
1716 |
LONG_DELAY_MS, MILLISECONDS, |
1717 |
new ArrayBlockingQueue<Runnable>(10)); |
1718 |
try (PoolCleaner cleaner = cleaner(e)) { |
1719 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1720 |
l.add(latchAwaitingStringTask(latch)); |
1721 |
l.add(null); |
1722 |
try { |
1723 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1724 |
shouldThrow(); |
1725 |
} catch (NullPointerException success) {} |
1726 |
latch.countDown(); |
1727 |
} |
1728 |
} |
1729 |
|
1730 |
/** |
1731 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1732 |
*/ |
1733 |
public void testTimedInvokeAny4() throws Exception { |
1734 |
final ExecutorService e = |
1735 |
new ThreadPoolExecutor(2, 2, |
1736 |
LONG_DELAY_MS, MILLISECONDS, |
1737 |
new ArrayBlockingQueue<Runnable>(10)); |
1738 |
try (PoolCleaner cleaner = cleaner(e)) { |
1739 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1740 |
l.add(new NPETask()); |
1741 |
try { |
1742 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1743 |
shouldThrow(); |
1744 |
} catch (ExecutionException success) { |
1745 |
assertTrue(success.getCause() instanceof NullPointerException); |
1746 |
} |
1747 |
} |
1748 |
} |
1749 |
|
1750 |
/** |
1751 |
* timed invokeAny(c) returns result of some task |
1752 |
*/ |
1753 |
public void testTimedInvokeAny5() throws Exception { |
1754 |
final ExecutorService e = |
1755 |
new ThreadPoolExecutor(2, 2, |
1756 |
LONG_DELAY_MS, MILLISECONDS, |
1757 |
new ArrayBlockingQueue<Runnable>(10)); |
1758 |
try (PoolCleaner cleaner = cleaner(e)) { |
1759 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1760 |
l.add(new StringTask()); |
1761 |
l.add(new StringTask()); |
1762 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1763 |
assertSame(TEST_STRING, result); |
1764 |
} |
1765 |
} |
1766 |
|
1767 |
/** |
1768 |
* timed invokeAll(null) throws NPE |
1769 |
*/ |
1770 |
public void testTimedInvokeAll1() throws Exception { |
1771 |
final ExecutorService e = |
1772 |
new ThreadPoolExecutor(2, 2, |
1773 |
LONG_DELAY_MS, MILLISECONDS, |
1774 |
new ArrayBlockingQueue<Runnable>(10)); |
1775 |
try (PoolCleaner cleaner = cleaner(e)) { |
1776 |
try { |
1777 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1778 |
shouldThrow(); |
1779 |
} catch (NullPointerException success) {} |
1780 |
} |
1781 |
} |
1782 |
|
1783 |
/** |
1784 |
* timed invokeAll(,,null) throws NPE |
1785 |
*/ |
1786 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1787 |
final ExecutorService e = |
1788 |
new ThreadPoolExecutor(2, 2, |
1789 |
LONG_DELAY_MS, MILLISECONDS, |
1790 |
new ArrayBlockingQueue<Runnable>(10)); |
1791 |
try (PoolCleaner cleaner = cleaner(e)) { |
1792 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1793 |
l.add(new StringTask()); |
1794 |
try { |
1795 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1796 |
shouldThrow(); |
1797 |
} catch (NullPointerException success) {} |
1798 |
} |
1799 |
} |
1800 |
|
1801 |
/** |
1802 |
* timed invokeAll(empty collection) returns empty collection |
1803 |
*/ |
1804 |
public void testTimedInvokeAll2() throws InterruptedException { |
1805 |
final ExecutorService e = |
1806 |
new ThreadPoolExecutor(2, 2, |
1807 |
LONG_DELAY_MS, MILLISECONDS, |
1808 |
new ArrayBlockingQueue<Runnable>(10)); |
1809 |
try (PoolCleaner cleaner = cleaner(e)) { |
1810 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), |
1811 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1812 |
assertTrue(r.isEmpty()); |
1813 |
} |
1814 |
} |
1815 |
|
1816 |
/** |
1817 |
* timed invokeAll(c) throws NPE if c has null elements |
1818 |
*/ |
1819 |
public void testTimedInvokeAll3() throws Exception { |
1820 |
final ExecutorService e = |
1821 |
new ThreadPoolExecutor(2, 2, |
1822 |
LONG_DELAY_MS, MILLISECONDS, |
1823 |
new ArrayBlockingQueue<Runnable>(10)); |
1824 |
try (PoolCleaner cleaner = cleaner(e)) { |
1825 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1826 |
l.add(new StringTask()); |
1827 |
l.add(null); |
1828 |
try { |
1829 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1830 |
shouldThrow(); |
1831 |
} catch (NullPointerException success) {} |
1832 |
} |
1833 |
} |
1834 |
|
1835 |
/** |
1836 |
* get of element of invokeAll(c) throws exception on failed task |
1837 |
*/ |
1838 |
public void testTimedInvokeAll4() throws Exception { |
1839 |
final ExecutorService e = |
1840 |
new ThreadPoolExecutor(2, 2, |
1841 |
LONG_DELAY_MS, MILLISECONDS, |
1842 |
new ArrayBlockingQueue<Runnable>(10)); |
1843 |
try (PoolCleaner cleaner = cleaner(e)) { |
1844 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1845 |
l.add(new NPETask()); |
1846 |
List<Future<String>> futures = |
1847 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1848 |
assertEquals(1, futures.size()); |
1849 |
try { |
1850 |
futures.get(0).get(); |
1851 |
shouldThrow(); |
1852 |
} catch (ExecutionException success) { |
1853 |
assertTrue(success.getCause() instanceof NullPointerException); |
1854 |
} |
1855 |
} |
1856 |
} |
1857 |
|
1858 |
/** |
1859 |
* timed invokeAll(c) returns results of all completed tasks |
1860 |
*/ |
1861 |
public void testTimedInvokeAll5() throws Exception { |
1862 |
final ExecutorService e = |
1863 |
new ThreadPoolExecutor(2, 2, |
1864 |
LONG_DELAY_MS, MILLISECONDS, |
1865 |
new ArrayBlockingQueue<Runnable>(10)); |
1866 |
try (PoolCleaner cleaner = cleaner(e)) { |
1867 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1868 |
l.add(new StringTask()); |
1869 |
l.add(new StringTask()); |
1870 |
List<Future<String>> futures = |
1871 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1872 |
assertEquals(2, futures.size()); |
1873 |
for (Future<String> future : futures) |
1874 |
assertSame(TEST_STRING, future.get()); |
1875 |
} |
1876 |
} |
1877 |
|
1878 |
/** |
1879 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1880 |
*/ |
1881 |
public void testTimedInvokeAll6() throws Exception { |
1882 |
final ExecutorService e = |
1883 |
new ThreadPoolExecutor(2, 2, |
1884 |
LONG_DELAY_MS, MILLISECONDS, |
1885 |
new ArrayBlockingQueue<Runnable>(10)); |
1886 |
try (PoolCleaner cleaner = cleaner(e)) { |
1887 |
for (long timeout = timeoutMillis();;) { |
1888 |
List<Callable<String>> tasks = new ArrayList<>(); |
1889 |
tasks.add(new StringTask("0")); |
1890 |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1891 |
tasks.add(new StringTask("2")); |
1892 |
long startTime = System.nanoTime(); |
1893 |
List<Future<String>> futures = |
1894 |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1895 |
assertEquals(tasks.size(), futures.size()); |
1896 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1897 |
for (Future future : futures) |
1898 |
assertTrue(future.isDone()); |
1899 |
assertTrue(futures.get(1).isCancelled()); |
1900 |
try { |
1901 |
assertEquals("0", futures.get(0).get()); |
1902 |
assertEquals("2", futures.get(2).get()); |
1903 |
break; |
1904 |
} catch (CancellationException retryWithLongerTimeout) { |
1905 |
timeout *= 2; |
1906 |
if (timeout >= LONG_DELAY_MS / 2) |
1907 |
fail("expected exactly one task to be cancelled"); |
1908 |
} |
1909 |
} |
1910 |
} |
1911 |
} |
1912 |
|
1913 |
/** |
1914 |
* Execution continues if there is at least one thread even if |
1915 |
* thread factory fails to create more |
1916 |
*/ |
1917 |
public void testFailingThreadFactory() throws InterruptedException { |
1918 |
final ExecutorService e = |
1919 |
new ThreadPoolExecutor(100, 100, |
1920 |
LONG_DELAY_MS, MILLISECONDS, |
1921 |
new LinkedBlockingQueue<Runnable>(), |
1922 |
new FailingThreadFactory()); |
1923 |
try (PoolCleaner cleaner = cleaner(e)) { |
1924 |
final int TASKS = 100; |
1925 |
final CountDownLatch done = new CountDownLatch(TASKS); |
1926 |
for (int k = 0; k < TASKS; ++k) |
1927 |
e.execute(new CheckedRunnable() { |
1928 |
public void realRun() { |
1929 |
done.countDown(); |
1930 |
}}); |
1931 |
assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
1932 |
} |
1933 |
} |
1934 |
|
1935 |
/** |
1936 |
* allowsCoreThreadTimeOut is by default false. |
1937 |
*/ |
1938 |
public void testAllowsCoreThreadTimeOut() { |
1939 |
final ThreadPoolExecutor p = |
1940 |
new ThreadPoolExecutor(2, 2, |
1941 |
1000, MILLISECONDS, |
1942 |
new ArrayBlockingQueue<Runnable>(10)); |
1943 |
try (PoolCleaner cleaner = cleaner(p)) { |
1944 |
assertFalse(p.allowsCoreThreadTimeOut()); |
1945 |
} |
1946 |
} |
1947 |
|
1948 |
/** |
1949 |
* allowCoreThreadTimeOut(true) causes idle threads to time out |
1950 |
*/ |
1951 |
public void testAllowCoreThreadTimeOut_true() throws Exception { |
1952 |
long keepAliveTime = timeoutMillis(); |
1953 |
final ThreadPoolExecutor p = |
1954 |
new ThreadPoolExecutor(2, 10, |
1955 |
keepAliveTime, MILLISECONDS, |
1956 |
new ArrayBlockingQueue<Runnable>(10)); |
1957 |
try (PoolCleaner cleaner = cleaner(p)) { |
1958 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1959 |
p.allowCoreThreadTimeOut(true); |
1960 |
p.execute(new CheckedRunnable() { |
1961 |
public void realRun() { |
1962 |
threadStarted.countDown(); |
1963 |
assertEquals(1, p.getPoolSize()); |
1964 |
}}); |
1965 |
await(threadStarted); |
1966 |
delay(keepAliveTime); |
1967 |
long startTime = System.nanoTime(); |
1968 |
while (p.getPoolSize() > 0 |
1969 |
&& millisElapsedSince(startTime) < LONG_DELAY_MS) |
1970 |
Thread.yield(); |
1971 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1972 |
assertEquals(0, p.getPoolSize()); |
1973 |
} |
1974 |
} |
1975 |
|
1976 |
/** |
1977 |
* allowCoreThreadTimeOut(false) causes idle threads not to time out |
1978 |
*/ |
1979 |
public void testAllowCoreThreadTimeOut_false() throws Exception { |
1980 |
long keepAliveTime = timeoutMillis(); |
1981 |
final ThreadPoolExecutor p = |
1982 |
new ThreadPoolExecutor(2, 10, |
1983 |
keepAliveTime, MILLISECONDS, |
1984 |
new ArrayBlockingQueue<Runnable>(10)); |
1985 |
try (PoolCleaner cleaner = cleaner(p)) { |
1986 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1987 |
p.allowCoreThreadTimeOut(false); |
1988 |
p.execute(new CheckedRunnable() { |
1989 |
public void realRun() throws InterruptedException { |
1990 |
threadStarted.countDown(); |
1991 |
assertTrue(p.getPoolSize() >= 1); |
1992 |
}}); |
1993 |
delay(2 * keepAliveTime); |
1994 |
assertTrue(p.getPoolSize() >= 1); |
1995 |
} |
1996 |
} |
1997 |
|
1998 |
/** |
1999 |
* execute allows the same task to be submitted multiple times, even |
2000 |
* if rejected |
2001 |
*/ |
2002 |
public void testRejectedRecycledTask() throws InterruptedException { |
2003 |
final int nTasks = 1000; |
2004 |
final CountDownLatch done = new CountDownLatch(nTasks); |
2005 |
final Runnable recycledTask = new Runnable() { |
2006 |
public void run() { |
2007 |
done.countDown(); |
2008 |
}}; |
2009 |
final ThreadPoolExecutor p = |
2010 |
new ThreadPoolExecutor(1, 30, |
2011 |
60, SECONDS, |
2012 |
new ArrayBlockingQueue(30)); |
2013 |
try (PoolCleaner cleaner = cleaner(p)) { |
2014 |
for (int i = 0; i < nTasks; ++i) { |
2015 |
for (;;) { |
2016 |
try { |
2017 |
p.execute(recycledTask); |
2018 |
break; |
2019 |
} |
2020 |
catch (RejectedExecutionException ignore) {} |
2021 |
} |
2022 |
} |
2023 |
// enough time to run all tasks |
2024 |
assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS)); |
2025 |
} |
2026 |
} |
2027 |
|
2028 |
/** |
2029 |
* get(cancelled task) throws CancellationException |
2030 |
*/ |
2031 |
public void testGet_cancelled() throws Exception { |
2032 |
final ExecutorService e = |
2033 |
new ThreadPoolExecutor(1, 1, |
2034 |
LONG_DELAY_MS, MILLISECONDS, |
2035 |
new LinkedBlockingQueue<Runnable>()); |
2036 |
try (PoolCleaner cleaner = cleaner(e)) { |
2037 |
final CountDownLatch blockerStarted = new CountDownLatch(1); |
2038 |
final CountDownLatch done = new CountDownLatch(1); |
2039 |
final List<Future<?>> futures = new ArrayList<>(); |
2040 |
for (int i = 0; i < 2; i++) { |
2041 |
Runnable r = new CheckedRunnable() { public void realRun() |
2042 |
throws Throwable { |
2043 |
blockerStarted.countDown(); |
2044 |
assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS)); |
2045 |
}}; |
2046 |
futures.add(e.submit(r)); |
2047 |
} |
2048 |
assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
2049 |
for (Future<?> future : futures) future.cancel(false); |
2050 |
for (Future<?> future : futures) { |
2051 |
try { |
2052 |
future.get(); |
2053 |
shouldThrow(); |
2054 |
} catch (CancellationException success) {} |
2055 |
try { |
2056 |
future.get(LONG_DELAY_MS, MILLISECONDS); |
2057 |
shouldThrow(); |
2058 |
} catch (CancellationException success) {} |
2059 |
assertTrue(future.isCancelled()); |
2060 |
assertTrue(future.isDone()); |
2061 |
} |
2062 |
done.countDown(); |
2063 |
} |
2064 |
} |
2065 |
|
2066 |
} |