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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.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 CountDownLatch done = new CountDownLatch(1); |
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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, done)) { |
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final CountDownLatch threadStarted = 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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await(done); |
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}}); |
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await(threadStarted); |
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assertEquals(1, p.getActiveCount()); |
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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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*/ |
280 |
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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} |
290 |
} |
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|
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/** |
293 |
* setRejectedExecutionHandler sets the handler returned by |
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* getRejectedExecutionHandler |
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*/ |
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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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} |
306 |
} |
307 |
|
308 |
/** |
309 |
* setRejectedExecutionHandler(null) throws NPE |
310 |
*/ |
311 |
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)); |
316 |
try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.setRejectedExecutionHandler(null); |
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shouldThrow(); |
320 |
} catch (NullPointerException success) {} |
321 |
} |
322 |
} |
323 |
|
324 |
/** |
325 |
* getLargestPoolSize increases, but doesn't overestimate, when |
326 |
* multiple threads active |
327 |
*/ |
328 |
public void testGetLargestPoolSize() throws InterruptedException { |
329 |
final int THREADS = 3; |
330 |
final CountDownLatch done = new CountDownLatch(1); |
331 |
final ThreadPoolExecutor p = |
332 |
new ThreadPoolExecutor(THREADS, THREADS, |
333 |
LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
335 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
336 |
assertEquals(0, p.getLargestPoolSize()); |
337 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
338 |
for (int i = 0; i < THREADS; i++) |
339 |
p.execute(new CheckedRunnable() { |
340 |
public void realRun() throws InterruptedException { |
341 |
threadsStarted.countDown(); |
342 |
await(done); |
343 |
assertEquals(THREADS, p.getLargestPoolSize()); |
344 |
}}); |
345 |
await(threadsStarted); |
346 |
assertEquals(THREADS, p.getLargestPoolSize()); |
347 |
} |
348 |
assertEquals(THREADS, p.getLargestPoolSize()); |
349 |
} |
350 |
|
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/** |
352 |
* getMaximumPoolSize returns value given in constructor if not |
353 |
* otherwise set |
354 |
*/ |
355 |
public void testGetMaximumPoolSize() { |
356 |
final ThreadPoolExecutor p = |
357 |
new ThreadPoolExecutor(2, 3, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
360 |
try (PoolCleaner cleaner = cleaner(p)) { |
361 |
assertEquals(3, p.getMaximumPoolSize()); |
362 |
p.setMaximumPoolSize(5); |
363 |
assertEquals(5, p.getMaximumPoolSize()); |
364 |
p.setMaximumPoolSize(4); |
365 |
assertEquals(4, p.getMaximumPoolSize()); |
366 |
} |
367 |
} |
368 |
|
369 |
/** |
370 |
* getPoolSize increases, but doesn't overestimate, when threads |
371 |
* become active |
372 |
*/ |
373 |
public void testGetPoolSize() throws InterruptedException { |
374 |
final CountDownLatch done = new CountDownLatch(1); |
375 |
final ThreadPoolExecutor p = |
376 |
new ThreadPoolExecutor(1, 1, |
377 |
LONG_DELAY_MS, MILLISECONDS, |
378 |
new ArrayBlockingQueue<Runnable>(10)); |
379 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
380 |
assertEquals(0, p.getPoolSize()); |
381 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
382 |
p.execute(new CheckedRunnable() { |
383 |
public void realRun() throws InterruptedException { |
384 |
threadStarted.countDown(); |
385 |
assertEquals(1, p.getPoolSize()); |
386 |
await(done); |
387 |
}}); |
388 |
await(threadStarted); |
389 |
assertEquals(1, p.getPoolSize()); |
390 |
} |
391 |
} |
392 |
|
393 |
/** |
394 |
* getTaskCount increases, but doesn't overestimate, when tasks submitted |
395 |
*/ |
396 |
public void testGetTaskCount() throws InterruptedException { |
397 |
final int TASKS = 3; |
398 |
final CountDownLatch done = new CountDownLatch(1); |
399 |
final ThreadPoolExecutor p = |
400 |
new ThreadPoolExecutor(1, 1, |
401 |
LONG_DELAY_MS, MILLISECONDS, |
402 |
new ArrayBlockingQueue<Runnable>(10)); |
403 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
404 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
405 |
assertEquals(0, p.getTaskCount()); |
406 |
assertEquals(0, p.getCompletedTaskCount()); |
407 |
p.execute(new CheckedRunnable() { |
408 |
public void realRun() throws InterruptedException { |
409 |
threadStarted.countDown(); |
410 |
await(done); |
411 |
}}); |
412 |
await(threadStarted); |
413 |
assertEquals(1, p.getTaskCount()); |
414 |
assertEquals(0, p.getCompletedTaskCount()); |
415 |
for (int i = 0; i < TASKS; i++) { |
416 |
assertEquals(1 + i, p.getTaskCount()); |
417 |
p.execute(new CheckedRunnable() { |
418 |
public void realRun() throws InterruptedException { |
419 |
threadStarted.countDown(); |
420 |
assertEquals(1 + TASKS, p.getTaskCount()); |
421 |
await(done); |
422 |
}}); |
423 |
} |
424 |
assertEquals(1 + TASKS, p.getTaskCount()); |
425 |
assertEquals(0, p.getCompletedTaskCount()); |
426 |
} |
427 |
assertEquals(1 + TASKS, p.getTaskCount()); |
428 |
assertEquals(1 + TASKS, p.getCompletedTaskCount()); |
429 |
} |
430 |
|
431 |
/** |
432 |
* isShutdown is false before shutdown, true after |
433 |
*/ |
434 |
public void testIsShutdown() { |
435 |
final ThreadPoolExecutor p = |
436 |
new ThreadPoolExecutor(1, 1, |
437 |
LONG_DELAY_MS, MILLISECONDS, |
438 |
new ArrayBlockingQueue<Runnable>(10)); |
439 |
try (PoolCleaner cleaner = cleaner(p)) { |
440 |
assertFalse(p.isShutdown()); |
441 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
442 |
assertTrue(p.isShutdown()); |
443 |
} |
444 |
} |
445 |
|
446 |
/** |
447 |
* awaitTermination on a non-shutdown pool times out |
448 |
*/ |
449 |
public void testAwaitTermination_timesOut() throws InterruptedException { |
450 |
final ThreadPoolExecutor p = |
451 |
new ThreadPoolExecutor(1, 1, |
452 |
LONG_DELAY_MS, MILLISECONDS, |
453 |
new ArrayBlockingQueue<Runnable>(10)); |
454 |
try (PoolCleaner cleaner = cleaner(p)) { |
455 |
assertFalse(p.isTerminated()); |
456 |
assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS)); |
457 |
assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
458 |
assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
459 |
assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
460 |
assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
461 |
assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
462 |
long timeoutNanos = 999999L; |
463 |
long startTime = System.nanoTime(); |
464 |
assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
465 |
assertTrue(System.nanoTime() - startTime >= timeoutNanos); |
466 |
assertFalse(p.isTerminated()); |
467 |
startTime = System.nanoTime(); |
468 |
long timeoutMillis = timeoutMillis(); |
469 |
assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS)); |
470 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
471 |
assertFalse(p.isTerminated()); |
472 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
473 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
474 |
assertTrue(p.isTerminated()); |
475 |
} |
476 |
} |
477 |
|
478 |
/** |
479 |
* isTerminated is false before termination, true after |
480 |
*/ |
481 |
public void testIsTerminated() throws InterruptedException { |
482 |
final ThreadPoolExecutor p = |
483 |
new ThreadPoolExecutor(1, 1, |
484 |
LONG_DELAY_MS, MILLISECONDS, |
485 |
new ArrayBlockingQueue<Runnable>(10)); |
486 |
try (PoolCleaner cleaner = cleaner(p)) { |
487 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
488 |
final CountDownLatch done = new CountDownLatch(1); |
489 |
assertFalse(p.isTerminating()); |
490 |
p.execute(new CheckedRunnable() { |
491 |
public void realRun() throws InterruptedException { |
492 |
assertFalse(p.isTerminating()); |
493 |
threadStarted.countDown(); |
494 |
await(done); |
495 |
}}); |
496 |
await(threadStarted); |
497 |
assertFalse(p.isTerminating()); |
498 |
done.countDown(); |
499 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
500 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
501 |
assertTrue(p.isTerminated()); |
502 |
assertFalse(p.isTerminating()); |
503 |
} |
504 |
} |
505 |
|
506 |
/** |
507 |
* isTerminating is not true when running or when terminated |
508 |
*/ |
509 |
public void testIsTerminating() throws InterruptedException { |
510 |
final ThreadPoolExecutor p = |
511 |
new ThreadPoolExecutor(1, 1, |
512 |
LONG_DELAY_MS, MILLISECONDS, |
513 |
new ArrayBlockingQueue<Runnable>(10)); |
514 |
try (PoolCleaner cleaner = cleaner(p)) { |
515 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
516 |
final CountDownLatch done = new CountDownLatch(1); |
517 |
assertFalse(p.isTerminating()); |
518 |
p.execute(new CheckedRunnable() { |
519 |
public void realRun() throws InterruptedException { |
520 |
assertFalse(p.isTerminating()); |
521 |
threadStarted.countDown(); |
522 |
await(done); |
523 |
}}); |
524 |
await(threadStarted); |
525 |
assertFalse(p.isTerminating()); |
526 |
done.countDown(); |
527 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
528 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
529 |
assertTrue(p.isTerminated()); |
530 |
assertFalse(p.isTerminating()); |
531 |
} |
532 |
} |
533 |
|
534 |
/** |
535 |
* getQueue returns the work queue, which contains queued tasks |
536 |
*/ |
537 |
public void testGetQueue() throws InterruptedException { |
538 |
final CountDownLatch done = new CountDownLatch(1); |
539 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
540 |
final ThreadPoolExecutor p = |
541 |
new ThreadPoolExecutor(1, 1, |
542 |
LONG_DELAY_MS, MILLISECONDS, |
543 |
q); |
544 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
545 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
546 |
FutureTask[] tasks = new FutureTask[5]; |
547 |
for (int i = 0; i < tasks.length; i++) { |
548 |
Callable task = new CheckedCallable<Boolean>() { |
549 |
public Boolean realCall() throws InterruptedException { |
550 |
threadStarted.countDown(); |
551 |
assertSame(q, p.getQueue()); |
552 |
await(done); |
553 |
return Boolean.TRUE; |
554 |
}}; |
555 |
tasks[i] = new FutureTask(task); |
556 |
p.execute(tasks[i]); |
557 |
} |
558 |
await(threadStarted); |
559 |
assertSame(q, p.getQueue()); |
560 |
assertFalse(q.contains(tasks[0])); |
561 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
562 |
assertEquals(tasks.length - 1, q.size()); |
563 |
} |
564 |
} |
565 |
|
566 |
/** |
567 |
* remove(task) removes queued task, and fails to remove active task |
568 |
*/ |
569 |
public void testRemove() throws InterruptedException { |
570 |
final CountDownLatch done = new CountDownLatch(1); |
571 |
BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
572 |
final ThreadPoolExecutor p = |
573 |
new ThreadPoolExecutor(1, 1, |
574 |
LONG_DELAY_MS, MILLISECONDS, |
575 |
q); |
576 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
577 |
Runnable[] tasks = new Runnable[6]; |
578 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
579 |
for (int i = 0; i < tasks.length; i++) { |
580 |
tasks[i] = new CheckedRunnable() { |
581 |
public void realRun() throws InterruptedException { |
582 |
threadStarted.countDown(); |
583 |
await(done); |
584 |
}}; |
585 |
p.execute(tasks[i]); |
586 |
} |
587 |
await(threadStarted); |
588 |
assertFalse(p.remove(tasks[0])); |
589 |
assertTrue(q.contains(tasks[4])); |
590 |
assertTrue(q.contains(tasks[3])); |
591 |
assertTrue(p.remove(tasks[4])); |
592 |
assertFalse(p.remove(tasks[4])); |
593 |
assertFalse(q.contains(tasks[4])); |
594 |
assertTrue(q.contains(tasks[3])); |
595 |
assertTrue(p.remove(tasks[3])); |
596 |
assertFalse(q.contains(tasks[3])); |
597 |
} |
598 |
} |
599 |
|
600 |
/** |
601 |
* purge removes cancelled tasks from the queue |
602 |
*/ |
603 |
public void testPurge() throws InterruptedException { |
604 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
605 |
final CountDownLatch done = new CountDownLatch(1); |
606 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
607 |
final ThreadPoolExecutor p = |
608 |
new ThreadPoolExecutor(1, 1, |
609 |
LONG_DELAY_MS, MILLISECONDS, |
610 |
q); |
611 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
612 |
FutureTask[] tasks = new FutureTask[5]; |
613 |
for (int i = 0; i < tasks.length; i++) { |
614 |
Callable task = new CheckedCallable<Boolean>() { |
615 |
public Boolean realCall() throws InterruptedException { |
616 |
threadStarted.countDown(); |
617 |
await(done); |
618 |
return Boolean.TRUE; |
619 |
}}; |
620 |
tasks[i] = new FutureTask(task); |
621 |
p.execute(tasks[i]); |
622 |
} |
623 |
await(threadStarted); |
624 |
assertEquals(tasks.length, p.getTaskCount()); |
625 |
assertEquals(tasks.length - 1, q.size()); |
626 |
assertEquals(1L, p.getActiveCount()); |
627 |
assertEquals(0L, p.getCompletedTaskCount()); |
628 |
tasks[4].cancel(true); |
629 |
tasks[3].cancel(false); |
630 |
p.purge(); |
631 |
assertEquals(tasks.length - 3, q.size()); |
632 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
633 |
p.purge(); // Nothing to do |
634 |
assertEquals(tasks.length - 3, q.size()); |
635 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
636 |
} |
637 |
} |
638 |
|
639 |
/** |
640 |
* shutdownNow returns a list containing tasks that were not run, |
641 |
* and those tasks are drained from the queue |
642 |
*/ |
643 |
public void testShutdownNow() throws InterruptedException { |
644 |
final int poolSize = 2; |
645 |
final int count = 5; |
646 |
final AtomicInteger ran = new AtomicInteger(0); |
647 |
final ThreadPoolExecutor p = |
648 |
new ThreadPoolExecutor(poolSize, poolSize, |
649 |
LONG_DELAY_MS, MILLISECONDS, |
650 |
new ArrayBlockingQueue<Runnable>(10)); |
651 |
final CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
652 |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
653 |
threadsStarted.countDown(); |
654 |
try { |
655 |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
656 |
} catch (InterruptedException success) {} |
657 |
ran.getAndIncrement(); |
658 |
}}; |
659 |
for (int i = 0; i < count; i++) |
660 |
p.execute(waiter); |
661 |
await(threadsStarted); |
662 |
assertEquals(poolSize, p.getActiveCount()); |
663 |
assertEquals(0, p.getCompletedTaskCount()); |
664 |
final List<Runnable> queuedTasks; |
665 |
try { |
666 |
queuedTasks = p.shutdownNow(); |
667 |
} catch (SecurityException ok) { |
668 |
return; // Allowed in case test doesn't have privs |
669 |
} |
670 |
assertTrue(p.isShutdown()); |
671 |
assertTrue(p.getQueue().isEmpty()); |
672 |
assertEquals(count - poolSize, queuedTasks.size()); |
673 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
674 |
assertTrue(p.isTerminated()); |
675 |
assertEquals(poolSize, ran.get()); |
676 |
assertEquals(poolSize, p.getCompletedTaskCount()); |
677 |
} |
678 |
|
679 |
// Exception Tests |
680 |
|
681 |
/** |
682 |
* Constructor throws if corePoolSize argument is less than zero |
683 |
*/ |
684 |
public void testConstructor1() { |
685 |
try { |
686 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
687 |
new ArrayBlockingQueue<Runnable>(10)); |
688 |
shouldThrow(); |
689 |
} catch (IllegalArgumentException success) {} |
690 |
} |
691 |
|
692 |
/** |
693 |
* Constructor throws if maximumPoolSize is less than zero |
694 |
*/ |
695 |
public void testConstructor2() { |
696 |
try { |
697 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
698 |
new ArrayBlockingQueue<Runnable>(10)); |
699 |
shouldThrow(); |
700 |
} catch (IllegalArgumentException success) {} |
701 |
} |
702 |
|
703 |
/** |
704 |
* Constructor throws if maximumPoolSize is equal to zero |
705 |
*/ |
706 |
public void testConstructor3() { |
707 |
try { |
708 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
709 |
new ArrayBlockingQueue<Runnable>(10)); |
710 |
shouldThrow(); |
711 |
} catch (IllegalArgumentException success) {} |
712 |
} |
713 |
|
714 |
/** |
715 |
* Constructor throws if keepAliveTime is less than zero |
716 |
*/ |
717 |
public void testConstructor4() { |
718 |
try { |
719 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
720 |
new ArrayBlockingQueue<Runnable>(10)); |
721 |
shouldThrow(); |
722 |
} catch (IllegalArgumentException success) {} |
723 |
} |
724 |
|
725 |
/** |
726 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
727 |
*/ |
728 |
public void testConstructor5() { |
729 |
try { |
730 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
731 |
new ArrayBlockingQueue<Runnable>(10)); |
732 |
shouldThrow(); |
733 |
} catch (IllegalArgumentException success) {} |
734 |
} |
735 |
|
736 |
/** |
737 |
* Constructor throws if workQueue is set to null |
738 |
*/ |
739 |
public void testConstructorNullPointerException() { |
740 |
try { |
741 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
742 |
(BlockingQueue) null); |
743 |
shouldThrow(); |
744 |
} catch (NullPointerException success) {} |
745 |
} |
746 |
|
747 |
/** |
748 |
* Constructor throws if corePoolSize argument is less than zero |
749 |
*/ |
750 |
public void testConstructor6() { |
751 |
try { |
752 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
753 |
new ArrayBlockingQueue<Runnable>(10), |
754 |
new SimpleThreadFactory()); |
755 |
shouldThrow(); |
756 |
} catch (IllegalArgumentException success) {} |
757 |
} |
758 |
|
759 |
/** |
760 |
* Constructor throws if maximumPoolSize is less than zero |
761 |
*/ |
762 |
public void testConstructor7() { |
763 |
try { |
764 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
765 |
new ArrayBlockingQueue<Runnable>(10), |
766 |
new SimpleThreadFactory()); |
767 |
shouldThrow(); |
768 |
} catch (IllegalArgumentException success) {} |
769 |
} |
770 |
|
771 |
/** |
772 |
* Constructor throws if maximumPoolSize is equal to zero |
773 |
*/ |
774 |
public void testConstructor8() { |
775 |
try { |
776 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
777 |
new ArrayBlockingQueue<Runnable>(10), |
778 |
new SimpleThreadFactory()); |
779 |
shouldThrow(); |
780 |
} catch (IllegalArgumentException success) {} |
781 |
} |
782 |
|
783 |
/** |
784 |
* Constructor throws if keepAliveTime is less than zero |
785 |
*/ |
786 |
public void testConstructor9() { |
787 |
try { |
788 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
789 |
new ArrayBlockingQueue<Runnable>(10), |
790 |
new SimpleThreadFactory()); |
791 |
shouldThrow(); |
792 |
} catch (IllegalArgumentException success) {} |
793 |
} |
794 |
|
795 |
/** |
796 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
797 |
*/ |
798 |
public void testConstructor10() { |
799 |
try { |
800 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
801 |
new ArrayBlockingQueue<Runnable>(10), |
802 |
new SimpleThreadFactory()); |
803 |
shouldThrow(); |
804 |
} catch (IllegalArgumentException success) {} |
805 |
} |
806 |
|
807 |
/** |
808 |
* Constructor throws if workQueue is set to null |
809 |
*/ |
810 |
public void testConstructorNullPointerException2() { |
811 |
try { |
812 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
813 |
(BlockingQueue) null, |
814 |
new SimpleThreadFactory()); |
815 |
shouldThrow(); |
816 |
} catch (NullPointerException success) {} |
817 |
} |
818 |
|
819 |
/** |
820 |
* Constructor throws if threadFactory is set to null |
821 |
*/ |
822 |
public void testConstructorNullPointerException3() { |
823 |
try { |
824 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
825 |
new ArrayBlockingQueue<Runnable>(10), |
826 |
(ThreadFactory) null); |
827 |
shouldThrow(); |
828 |
} catch (NullPointerException success) {} |
829 |
} |
830 |
|
831 |
/** |
832 |
* Constructor throws if corePoolSize argument is less than zero |
833 |
*/ |
834 |
public void testConstructor11() { |
835 |
try { |
836 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
837 |
new ArrayBlockingQueue<Runnable>(10), |
838 |
new NoOpREHandler()); |
839 |
shouldThrow(); |
840 |
} catch (IllegalArgumentException success) {} |
841 |
} |
842 |
|
843 |
/** |
844 |
* Constructor throws if maximumPoolSize is less than zero |
845 |
*/ |
846 |
public void testConstructor12() { |
847 |
try { |
848 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
849 |
new ArrayBlockingQueue<Runnable>(10), |
850 |
new NoOpREHandler()); |
851 |
shouldThrow(); |
852 |
} catch (IllegalArgumentException success) {} |
853 |
} |
854 |
|
855 |
/** |
856 |
* Constructor throws if maximumPoolSize is equal to zero |
857 |
*/ |
858 |
public void testConstructor13() { |
859 |
try { |
860 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
861 |
new ArrayBlockingQueue<Runnable>(10), |
862 |
new NoOpREHandler()); |
863 |
shouldThrow(); |
864 |
} catch (IllegalArgumentException success) {} |
865 |
} |
866 |
|
867 |
/** |
868 |
* Constructor throws if keepAliveTime is less than zero |
869 |
*/ |
870 |
public void testConstructor14() { |
871 |
try { |
872 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
873 |
new ArrayBlockingQueue<Runnable>(10), |
874 |
new NoOpREHandler()); |
875 |
shouldThrow(); |
876 |
} catch (IllegalArgumentException success) {} |
877 |
} |
878 |
|
879 |
/** |
880 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
881 |
*/ |
882 |
public void testConstructor15() { |
883 |
try { |
884 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
885 |
new ArrayBlockingQueue<Runnable>(10), |
886 |
new NoOpREHandler()); |
887 |
shouldThrow(); |
888 |
} catch (IllegalArgumentException success) {} |
889 |
} |
890 |
|
891 |
/** |
892 |
* Constructor throws if workQueue is set to null |
893 |
*/ |
894 |
public void testConstructorNullPointerException4() { |
895 |
try { |
896 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
897 |
(BlockingQueue) null, |
898 |
new NoOpREHandler()); |
899 |
shouldThrow(); |
900 |
} catch (NullPointerException success) {} |
901 |
} |
902 |
|
903 |
/** |
904 |
* Constructor throws if handler is set to null |
905 |
*/ |
906 |
public void testConstructorNullPointerException5() { |
907 |
try { |
908 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
909 |
new ArrayBlockingQueue<Runnable>(10), |
910 |
(RejectedExecutionHandler) null); |
911 |
shouldThrow(); |
912 |
} catch (NullPointerException success) {} |
913 |
} |
914 |
|
915 |
/** |
916 |
* Constructor throws if corePoolSize argument is less than zero |
917 |
*/ |
918 |
public void testConstructor16() { |
919 |
try { |
920 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
921 |
new ArrayBlockingQueue<Runnable>(10), |
922 |
new SimpleThreadFactory(), |
923 |
new NoOpREHandler()); |
924 |
shouldThrow(); |
925 |
} catch (IllegalArgumentException success) {} |
926 |
} |
927 |
|
928 |
/** |
929 |
* Constructor throws if maximumPoolSize is less than zero |
930 |
*/ |
931 |
public void testConstructor17() { |
932 |
try { |
933 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
934 |
new ArrayBlockingQueue<Runnable>(10), |
935 |
new SimpleThreadFactory(), |
936 |
new NoOpREHandler()); |
937 |
shouldThrow(); |
938 |
} catch (IllegalArgumentException success) {} |
939 |
} |
940 |
|
941 |
/** |
942 |
* Constructor throws if maximumPoolSize is equal to zero |
943 |
*/ |
944 |
public void testConstructor18() { |
945 |
try { |
946 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
947 |
new ArrayBlockingQueue<Runnable>(10), |
948 |
new SimpleThreadFactory(), |
949 |
new NoOpREHandler()); |
950 |
shouldThrow(); |
951 |
} catch (IllegalArgumentException success) {} |
952 |
} |
953 |
|
954 |
/** |
955 |
* Constructor throws if keepAliveTime is less than zero |
956 |
*/ |
957 |
public void testConstructor19() { |
958 |
try { |
959 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
960 |
new ArrayBlockingQueue<Runnable>(10), |
961 |
new SimpleThreadFactory(), |
962 |
new NoOpREHandler()); |
963 |
shouldThrow(); |
964 |
} catch (IllegalArgumentException success) {} |
965 |
} |
966 |
|
967 |
/** |
968 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
969 |
*/ |
970 |
public void testConstructor20() { |
971 |
try { |
972 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
973 |
new ArrayBlockingQueue<Runnable>(10), |
974 |
new SimpleThreadFactory(), |
975 |
new NoOpREHandler()); |
976 |
shouldThrow(); |
977 |
} catch (IllegalArgumentException success) {} |
978 |
} |
979 |
|
980 |
/** |
981 |
* Constructor throws if workQueue is null |
982 |
*/ |
983 |
public void testConstructorNullPointerException6() { |
984 |
try { |
985 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
986 |
(BlockingQueue) null, |
987 |
new SimpleThreadFactory(), |
988 |
new NoOpREHandler()); |
989 |
shouldThrow(); |
990 |
} catch (NullPointerException success) {} |
991 |
} |
992 |
|
993 |
/** |
994 |
* Constructor throws if handler is null |
995 |
*/ |
996 |
public void testConstructorNullPointerException7() { |
997 |
try { |
998 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
999 |
new ArrayBlockingQueue<Runnable>(10), |
1000 |
new SimpleThreadFactory(), |
1001 |
(RejectedExecutionHandler) null); |
1002 |
shouldThrow(); |
1003 |
} catch (NullPointerException success) {} |
1004 |
} |
1005 |
|
1006 |
/** |
1007 |
* Constructor throws if ThreadFactory is null |
1008 |
*/ |
1009 |
public void testConstructorNullPointerException8() { |
1010 |
try { |
1011 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
1012 |
new ArrayBlockingQueue<Runnable>(10), |
1013 |
(ThreadFactory) null, |
1014 |
new NoOpREHandler()); |
1015 |
shouldThrow(); |
1016 |
} catch (NullPointerException success) {} |
1017 |
} |
1018 |
|
1019 |
/** |
1020 |
* get of submitted callable throws InterruptedException if interrupted |
1021 |
*/ |
1022 |
public void testInterruptedSubmit() throws InterruptedException { |
1023 |
final CountDownLatch done = new CountDownLatch(1); |
1024 |
final ThreadPoolExecutor p = |
1025 |
new ThreadPoolExecutor(1, 1, |
1026 |
60, SECONDS, |
1027 |
new ArrayBlockingQueue<Runnable>(10)); |
1028 |
|
1029 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1030 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1031 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1032 |
public void realRun() throws Exception { |
1033 |
Callable task = new CheckedCallable<Boolean>() { |
1034 |
public Boolean realCall() throws InterruptedException { |
1035 |
threadStarted.countDown(); |
1036 |
await(done); |
1037 |
return Boolean.TRUE; |
1038 |
}}; |
1039 |
p.submit(task).get(); |
1040 |
}}); |
1041 |
|
1042 |
await(threadStarted); |
1043 |
t.interrupt(); |
1044 |
awaitTermination(t); |
1045 |
} |
1046 |
} |
1047 |
|
1048 |
/** |
1049 |
* execute throws RejectedExecutionException if saturated. |
1050 |
*/ |
1051 |
public void testSaturatedExecute() { |
1052 |
final CountDownLatch done = new CountDownLatch(1); |
1053 |
final ThreadPoolExecutor p = |
1054 |
new ThreadPoolExecutor(1, 1, |
1055 |
LONG_DELAY_MS, MILLISECONDS, |
1056 |
new ArrayBlockingQueue<Runnable>(1)); |
1057 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1058 |
Runnable task = new CheckedRunnable() { |
1059 |
public void realRun() throws InterruptedException { |
1060 |
await(done); |
1061 |
}}; |
1062 |
for (int i = 0; i < 2; ++i) |
1063 |
p.execute(task); |
1064 |
for (int i = 0; i < 2; ++i) { |
1065 |
try { |
1066 |
p.execute(task); |
1067 |
shouldThrow(); |
1068 |
} catch (RejectedExecutionException success) {} |
1069 |
assertTrue(p.getTaskCount() <= 2); |
1070 |
} |
1071 |
} |
1072 |
} |
1073 |
|
1074 |
/** |
1075 |
* submit(runnable) throws RejectedExecutionException if saturated. |
1076 |
*/ |
1077 |
public void testSaturatedSubmitRunnable() { |
1078 |
final CountDownLatch done = new CountDownLatch(1); |
1079 |
final ThreadPoolExecutor p = |
1080 |
new ThreadPoolExecutor(1, 1, |
1081 |
LONG_DELAY_MS, MILLISECONDS, |
1082 |
new ArrayBlockingQueue<Runnable>(1)); |
1083 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1084 |
Runnable task = new CheckedRunnable() { |
1085 |
public void realRun() throws InterruptedException { |
1086 |
await(done); |
1087 |
}}; |
1088 |
for (int i = 0; i < 2; ++i) |
1089 |
p.submit(task); |
1090 |
for (int i = 0; i < 2; ++i) { |
1091 |
try { |
1092 |
p.execute(task); |
1093 |
shouldThrow(); |
1094 |
} catch (RejectedExecutionException success) {} |
1095 |
assertTrue(p.getTaskCount() <= 2); |
1096 |
} |
1097 |
} |
1098 |
} |
1099 |
|
1100 |
/** |
1101 |
* submit(callable) throws RejectedExecutionException if saturated. |
1102 |
*/ |
1103 |
public void testSaturatedSubmitCallable() { |
1104 |
final CountDownLatch done = new CountDownLatch(1); |
1105 |
final ThreadPoolExecutor p = |
1106 |
new ThreadPoolExecutor(1, 1, |
1107 |
LONG_DELAY_MS, MILLISECONDS, |
1108 |
new ArrayBlockingQueue<Runnable>(1)); |
1109 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1110 |
Runnable task = new CheckedRunnable() { |
1111 |
public void realRun() throws InterruptedException { |
1112 |
await(done); |
1113 |
}}; |
1114 |
for (int i = 0; i < 2; ++i) |
1115 |
p.submit(Executors.callable(task)); |
1116 |
for (int i = 0; i < 2; ++i) { |
1117 |
try { |
1118 |
p.execute(task); |
1119 |
shouldThrow(); |
1120 |
} catch (RejectedExecutionException success) {} |
1121 |
assertTrue(p.getTaskCount() <= 2); |
1122 |
} |
1123 |
} |
1124 |
} |
1125 |
|
1126 |
/** |
1127 |
* executor using CallerRunsPolicy runs task if saturated. |
1128 |
*/ |
1129 |
public void testSaturatedExecute2() { |
1130 |
final ThreadPoolExecutor p = |
1131 |
new ThreadPoolExecutor(1, 1, |
1132 |
LONG_DELAY_MS, |
1133 |
MILLISECONDS, |
1134 |
new ArrayBlockingQueue<Runnable>(1), |
1135 |
new ThreadPoolExecutor.CallerRunsPolicy()); |
1136 |
try (PoolCleaner cleaner = cleaner(p)) { |
1137 |
final CountDownLatch done = new CountDownLatch(1); |
1138 |
Runnable blocker = new CheckedRunnable() { |
1139 |
public void realRun() throws InterruptedException { |
1140 |
await(done); |
1141 |
}}; |
1142 |
p.execute(blocker); |
1143 |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1144 |
for (int i = 0; i < tasks.length; i++) |
1145 |
tasks[i] = new TrackedNoOpRunnable(); |
1146 |
for (int i = 0; i < tasks.length; i++) |
1147 |
p.execute(tasks[i]); |
1148 |
for (int i = 1; i < tasks.length; i++) |
1149 |
assertTrue(tasks[i].done); |
1150 |
assertFalse(tasks[0].done); // waiting in queue |
1151 |
done.countDown(); |
1152 |
} |
1153 |
} |
1154 |
|
1155 |
/** |
1156 |
* executor using DiscardPolicy drops task if saturated. |
1157 |
*/ |
1158 |
public void testSaturatedExecute3() { |
1159 |
final CountDownLatch done = new CountDownLatch(1); |
1160 |
final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1161 |
for (int i = 0; i < tasks.length; ++i) |
1162 |
tasks[i] = new TrackedNoOpRunnable(); |
1163 |
final ThreadPoolExecutor p = |
1164 |
new ThreadPoolExecutor(1, 1, |
1165 |
LONG_DELAY_MS, MILLISECONDS, |
1166 |
new ArrayBlockingQueue<Runnable>(1), |
1167 |
new ThreadPoolExecutor.DiscardPolicy()); |
1168 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1169 |
p.execute(awaiter(done)); |
1170 |
|
1171 |
for (TrackedNoOpRunnable task : tasks) |
1172 |
p.execute(task); |
1173 |
for (int i = 1; i < tasks.length; i++) |
1174 |
assertFalse(tasks[i].done); |
1175 |
} |
1176 |
for (int i = 1; i < tasks.length; i++) |
1177 |
assertFalse(tasks[i].done); |
1178 |
assertTrue(tasks[0].done); // was waiting in queue |
1179 |
} |
1180 |
|
1181 |
/** |
1182 |
* executor using DiscardOldestPolicy drops oldest task if saturated. |
1183 |
*/ |
1184 |
public void testSaturatedExecute4() { |
1185 |
final CountDownLatch done = new CountDownLatch(1); |
1186 |
LatchAwaiter r1 = awaiter(done); |
1187 |
LatchAwaiter r2 = awaiter(done); |
1188 |
LatchAwaiter r3 = awaiter(done); |
1189 |
final ThreadPoolExecutor p = |
1190 |
new ThreadPoolExecutor(1, 1, |
1191 |
LONG_DELAY_MS, MILLISECONDS, |
1192 |
new ArrayBlockingQueue<Runnable>(1), |
1193 |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1194 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1195 |
assertEquals(LatchAwaiter.NEW, r1.state); |
1196 |
assertEquals(LatchAwaiter.NEW, r2.state); |
1197 |
assertEquals(LatchAwaiter.NEW, r3.state); |
1198 |
p.execute(r1); |
1199 |
p.execute(r2); |
1200 |
assertTrue(p.getQueue().contains(r2)); |
1201 |
p.execute(r3); |
1202 |
assertFalse(p.getQueue().contains(r2)); |
1203 |
assertTrue(p.getQueue().contains(r3)); |
1204 |
} |
1205 |
assertEquals(LatchAwaiter.DONE, r1.state); |
1206 |
assertEquals(LatchAwaiter.NEW, r2.state); |
1207 |
assertEquals(LatchAwaiter.DONE, r3.state); |
1208 |
} |
1209 |
|
1210 |
/** |
1211 |
* execute throws RejectedExecutionException if shutdown |
1212 |
*/ |
1213 |
public void testRejectedExecutionExceptionOnShutdown() { |
1214 |
final ThreadPoolExecutor p = |
1215 |
new ThreadPoolExecutor(1, 1, |
1216 |
LONG_DELAY_MS, MILLISECONDS, |
1217 |
new ArrayBlockingQueue<Runnable>(1)); |
1218 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1219 |
try (PoolCleaner cleaner = cleaner(p)) { |
1220 |
try { |
1221 |
p.execute(new NoOpRunnable()); |
1222 |
shouldThrow(); |
1223 |
} catch (RejectedExecutionException success) {} |
1224 |
} |
1225 |
} |
1226 |
|
1227 |
/** |
1228 |
* execute using CallerRunsPolicy drops task on shutdown |
1229 |
*/ |
1230 |
public void testCallerRunsOnShutdown() { |
1231 |
RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
1232 |
final ThreadPoolExecutor p = |
1233 |
new ThreadPoolExecutor(1, 1, |
1234 |
LONG_DELAY_MS, MILLISECONDS, |
1235 |
new ArrayBlockingQueue<Runnable>(1), h); |
1236 |
|
1237 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1238 |
try (PoolCleaner cleaner = cleaner(p)) { |
1239 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1240 |
p.execute(r); |
1241 |
assertFalse(r.done); |
1242 |
} |
1243 |
} |
1244 |
|
1245 |
/** |
1246 |
* execute using DiscardPolicy drops task on shutdown |
1247 |
*/ |
1248 |
public void testDiscardOnShutdown() { |
1249 |
final ThreadPoolExecutor p = |
1250 |
new ThreadPoolExecutor(1, 1, |
1251 |
LONG_DELAY_MS, MILLISECONDS, |
1252 |
new ArrayBlockingQueue<Runnable>(1), |
1253 |
new ThreadPoolExecutor.DiscardPolicy()); |
1254 |
|
1255 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1256 |
try (PoolCleaner cleaner = cleaner(p)) { |
1257 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1258 |
p.execute(r); |
1259 |
assertFalse(r.done); |
1260 |
} |
1261 |
} |
1262 |
|
1263 |
/** |
1264 |
* execute using DiscardOldestPolicy drops task on shutdown |
1265 |
*/ |
1266 |
public void testDiscardOldestOnShutdown() { |
1267 |
final ThreadPoolExecutor p = |
1268 |
new ThreadPoolExecutor(1, 1, |
1269 |
LONG_DELAY_MS, MILLISECONDS, |
1270 |
new ArrayBlockingQueue<Runnable>(1), |
1271 |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1272 |
|
1273 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1274 |
try (PoolCleaner cleaner = cleaner(p)) { |
1275 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1276 |
p.execute(r); |
1277 |
assertFalse(r.done); |
1278 |
} |
1279 |
} |
1280 |
|
1281 |
/** |
1282 |
* execute(null) throws NPE |
1283 |
*/ |
1284 |
public void testExecuteNull() { |
1285 |
final ThreadPoolExecutor p = |
1286 |
new ThreadPoolExecutor(1, 2, |
1287 |
1L, SECONDS, |
1288 |
new ArrayBlockingQueue<Runnable>(10)); |
1289 |
try (PoolCleaner cleaner = cleaner(p)) { |
1290 |
try { |
1291 |
p.execute(null); |
1292 |
shouldThrow(); |
1293 |
} catch (NullPointerException success) {} |
1294 |
} |
1295 |
} |
1296 |
|
1297 |
/** |
1298 |
* setCorePoolSize of negative value throws IllegalArgumentException |
1299 |
*/ |
1300 |
public void testCorePoolSizeIllegalArgumentException() { |
1301 |
final ThreadPoolExecutor p = |
1302 |
new ThreadPoolExecutor(1, 2, |
1303 |
LONG_DELAY_MS, MILLISECONDS, |
1304 |
new ArrayBlockingQueue<Runnable>(10)); |
1305 |
try (PoolCleaner cleaner = cleaner(p)) { |
1306 |
try { |
1307 |
p.setCorePoolSize(-1); |
1308 |
shouldThrow(); |
1309 |
} catch (IllegalArgumentException success) {} |
1310 |
} |
1311 |
} |
1312 |
|
1313 |
/** |
1314 |
* setMaximumPoolSize(int) throws IllegalArgumentException if |
1315 |
* given a value less the core pool size |
1316 |
*/ |
1317 |
public void testMaximumPoolSizeIllegalArgumentException() { |
1318 |
final ThreadPoolExecutor p = |
1319 |
new ThreadPoolExecutor(2, 3, |
1320 |
LONG_DELAY_MS, MILLISECONDS, |
1321 |
new ArrayBlockingQueue<Runnable>(10)); |
1322 |
try (PoolCleaner cleaner = cleaner(p)) { |
1323 |
try { |
1324 |
p.setMaximumPoolSize(1); |
1325 |
shouldThrow(); |
1326 |
} catch (IllegalArgumentException success) {} |
1327 |
} |
1328 |
} |
1329 |
|
1330 |
/** |
1331 |
* setMaximumPoolSize throws IllegalArgumentException |
1332 |
* if given a negative value |
1333 |
*/ |
1334 |
public void testMaximumPoolSizeIllegalArgumentException2() { |
1335 |
final ThreadPoolExecutor p = |
1336 |
new ThreadPoolExecutor(2, 3, |
1337 |
LONG_DELAY_MS, MILLISECONDS, |
1338 |
new ArrayBlockingQueue<Runnable>(10)); |
1339 |
try (PoolCleaner cleaner = cleaner(p)) { |
1340 |
try { |
1341 |
p.setMaximumPoolSize(-1); |
1342 |
shouldThrow(); |
1343 |
} catch (IllegalArgumentException success) {} |
1344 |
} |
1345 |
} |
1346 |
|
1347 |
/** |
1348 |
* Configuration changes that allow core pool size greater than |
1349 |
* max pool size result in IllegalArgumentException. |
1350 |
*/ |
1351 |
public void testPoolSizeInvariants() { |
1352 |
final ThreadPoolExecutor p = |
1353 |
new ThreadPoolExecutor(1, 1, |
1354 |
LONG_DELAY_MS, MILLISECONDS, |
1355 |
new ArrayBlockingQueue<Runnable>(10)); |
1356 |
try (PoolCleaner cleaner = cleaner(p)) { |
1357 |
for (int s = 1; s < 5; s++) { |
1358 |
p.setMaximumPoolSize(s); |
1359 |
p.setCorePoolSize(s); |
1360 |
try { |
1361 |
p.setMaximumPoolSize(s - 1); |
1362 |
shouldThrow(); |
1363 |
} catch (IllegalArgumentException success) {} |
1364 |
assertEquals(s, p.getCorePoolSize()); |
1365 |
assertEquals(s, p.getMaximumPoolSize()); |
1366 |
try { |
1367 |
p.setCorePoolSize(s + 1); |
1368 |
shouldThrow(); |
1369 |
} catch (IllegalArgumentException success) {} |
1370 |
assertEquals(s, p.getCorePoolSize()); |
1371 |
assertEquals(s, p.getMaximumPoolSize()); |
1372 |
} |
1373 |
} |
1374 |
} |
1375 |
|
1376 |
/** |
1377 |
* setKeepAliveTime throws IllegalArgumentException |
1378 |
* when given a negative value |
1379 |
*/ |
1380 |
public void testKeepAliveTimeIllegalArgumentException() { |
1381 |
final ThreadPoolExecutor p = |
1382 |
new ThreadPoolExecutor(2, 3, |
1383 |
LONG_DELAY_MS, MILLISECONDS, |
1384 |
new ArrayBlockingQueue<Runnable>(10)); |
1385 |
try (PoolCleaner cleaner = cleaner(p)) { |
1386 |
try { |
1387 |
p.setKeepAliveTime(-1, MILLISECONDS); |
1388 |
shouldThrow(); |
1389 |
} catch (IllegalArgumentException success) {} |
1390 |
} |
1391 |
} |
1392 |
|
1393 |
/** |
1394 |
* terminated() is called on termination |
1395 |
*/ |
1396 |
public void testTerminated() { |
1397 |
ExtendedTPE p = new ExtendedTPE(); |
1398 |
try (PoolCleaner cleaner = cleaner(p)) { |
1399 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1400 |
assertTrue(p.terminatedCalled()); |
1401 |
assertTrue(p.isShutdown()); |
1402 |
} |
1403 |
} |
1404 |
|
1405 |
/** |
1406 |
* beforeExecute and afterExecute are called when executing task |
1407 |
*/ |
1408 |
public void testBeforeAfter() throws InterruptedException { |
1409 |
ExtendedTPE p = new ExtendedTPE(); |
1410 |
try (PoolCleaner cleaner = cleaner(p)) { |
1411 |
final CountDownLatch done = new CountDownLatch(1); |
1412 |
p.execute(new CheckedRunnable() { |
1413 |
public void realRun() { |
1414 |
done.countDown(); |
1415 |
}}); |
1416 |
await(p.afterCalled); |
1417 |
assertEquals(0, done.getCount()); |
1418 |
assertTrue(p.afterCalled()); |
1419 |
assertTrue(p.beforeCalled()); |
1420 |
} |
1421 |
} |
1422 |
|
1423 |
/** |
1424 |
* completed submit of callable returns result |
1425 |
*/ |
1426 |
public void testSubmitCallable() throws Exception { |
1427 |
final ExecutorService e = |
1428 |
new ThreadPoolExecutor(2, 2, |
1429 |
LONG_DELAY_MS, MILLISECONDS, |
1430 |
new ArrayBlockingQueue<Runnable>(10)); |
1431 |
try (PoolCleaner cleaner = cleaner(e)) { |
1432 |
Future<String> future = e.submit(new StringTask()); |
1433 |
String result = future.get(); |
1434 |
assertSame(TEST_STRING, result); |
1435 |
} |
1436 |
} |
1437 |
|
1438 |
/** |
1439 |
* completed submit of runnable returns successfully |
1440 |
*/ |
1441 |
public void testSubmitRunnable() throws Exception { |
1442 |
final ExecutorService e = |
1443 |
new ThreadPoolExecutor(2, 2, |
1444 |
LONG_DELAY_MS, MILLISECONDS, |
1445 |
new ArrayBlockingQueue<Runnable>(10)); |
1446 |
try (PoolCleaner cleaner = cleaner(e)) { |
1447 |
Future<?> future = e.submit(new NoOpRunnable()); |
1448 |
future.get(); |
1449 |
assertTrue(future.isDone()); |
1450 |
} |
1451 |
} |
1452 |
|
1453 |
/** |
1454 |
* completed submit of (runnable, result) returns result |
1455 |
*/ |
1456 |
public void testSubmitRunnable2() throws Exception { |
1457 |
final ExecutorService e = |
1458 |
new ThreadPoolExecutor(2, 2, |
1459 |
LONG_DELAY_MS, MILLISECONDS, |
1460 |
new ArrayBlockingQueue<Runnable>(10)); |
1461 |
try (PoolCleaner cleaner = cleaner(e)) { |
1462 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
1463 |
String result = future.get(); |
1464 |
assertSame(TEST_STRING, result); |
1465 |
} |
1466 |
} |
1467 |
|
1468 |
/** |
1469 |
* invokeAny(null) throws NPE |
1470 |
*/ |
1471 |
public void testInvokeAny1() throws Exception { |
1472 |
final ExecutorService e = |
1473 |
new ThreadPoolExecutor(2, 2, |
1474 |
LONG_DELAY_MS, MILLISECONDS, |
1475 |
new ArrayBlockingQueue<Runnable>(10)); |
1476 |
try (PoolCleaner cleaner = cleaner(e)) { |
1477 |
try { |
1478 |
e.invokeAny(null); |
1479 |
shouldThrow(); |
1480 |
} catch (NullPointerException success) {} |
1481 |
} |
1482 |
} |
1483 |
|
1484 |
/** |
1485 |
* invokeAny(empty collection) throws IAE |
1486 |
*/ |
1487 |
public void testInvokeAny2() throws Exception { |
1488 |
final ExecutorService e = |
1489 |
new ThreadPoolExecutor(2, 2, |
1490 |
LONG_DELAY_MS, MILLISECONDS, |
1491 |
new ArrayBlockingQueue<Runnable>(10)); |
1492 |
try (PoolCleaner cleaner = cleaner(e)) { |
1493 |
try { |
1494 |
e.invokeAny(new ArrayList<Callable<String>>()); |
1495 |
shouldThrow(); |
1496 |
} catch (IllegalArgumentException success) {} |
1497 |
} |
1498 |
} |
1499 |
|
1500 |
/** |
1501 |
* invokeAny(c) throws NPE if c has null elements |
1502 |
*/ |
1503 |
public void testInvokeAny3() throws Exception { |
1504 |
final CountDownLatch latch = new CountDownLatch(1); |
1505 |
final ExecutorService e = |
1506 |
new ThreadPoolExecutor(2, 2, |
1507 |
LONG_DELAY_MS, MILLISECONDS, |
1508 |
new ArrayBlockingQueue<Runnable>(10)); |
1509 |
try (PoolCleaner cleaner = cleaner(e)) { |
1510 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1511 |
l.add(latchAwaitingStringTask(latch)); |
1512 |
l.add(null); |
1513 |
try { |
1514 |
e.invokeAny(l); |
1515 |
shouldThrow(); |
1516 |
} catch (NullPointerException success) {} |
1517 |
latch.countDown(); |
1518 |
} |
1519 |
} |
1520 |
|
1521 |
/** |
1522 |
* invokeAny(c) throws ExecutionException if no task completes |
1523 |
*/ |
1524 |
public void testInvokeAny4() throws Exception { |
1525 |
final ExecutorService e = |
1526 |
new ThreadPoolExecutor(2, 2, |
1527 |
LONG_DELAY_MS, MILLISECONDS, |
1528 |
new ArrayBlockingQueue<Runnable>(10)); |
1529 |
try (PoolCleaner cleaner = cleaner(e)) { |
1530 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1531 |
l.add(new NPETask()); |
1532 |
try { |
1533 |
e.invokeAny(l); |
1534 |
shouldThrow(); |
1535 |
} catch (ExecutionException success) { |
1536 |
assertTrue(success.getCause() instanceof NullPointerException); |
1537 |
} |
1538 |
} |
1539 |
} |
1540 |
|
1541 |
/** |
1542 |
* invokeAny(c) returns result of some task |
1543 |
*/ |
1544 |
public void testInvokeAny5() throws Exception { |
1545 |
final ExecutorService e = |
1546 |
new ThreadPoolExecutor(2, 2, |
1547 |
LONG_DELAY_MS, MILLISECONDS, |
1548 |
new ArrayBlockingQueue<Runnable>(10)); |
1549 |
try (PoolCleaner cleaner = cleaner(e)) { |
1550 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1551 |
l.add(new StringTask()); |
1552 |
l.add(new StringTask()); |
1553 |
String result = e.invokeAny(l); |
1554 |
assertSame(TEST_STRING, result); |
1555 |
} |
1556 |
} |
1557 |
|
1558 |
/** |
1559 |
* invokeAll(null) throws NPE |
1560 |
*/ |
1561 |
public void testInvokeAll1() throws Exception { |
1562 |
final ExecutorService e = |
1563 |
new ThreadPoolExecutor(2, 2, |
1564 |
LONG_DELAY_MS, MILLISECONDS, |
1565 |
new ArrayBlockingQueue<Runnable>(10)); |
1566 |
try (PoolCleaner cleaner = cleaner(e)) { |
1567 |
try { |
1568 |
e.invokeAll(null); |
1569 |
shouldThrow(); |
1570 |
} catch (NullPointerException success) {} |
1571 |
} |
1572 |
} |
1573 |
|
1574 |
/** |
1575 |
* invokeAll(empty collection) returns empty collection |
1576 |
*/ |
1577 |
public void testInvokeAll2() throws InterruptedException { |
1578 |
final ExecutorService e = |
1579 |
new ThreadPoolExecutor(2, 2, |
1580 |
LONG_DELAY_MS, MILLISECONDS, |
1581 |
new ArrayBlockingQueue<Runnable>(10)); |
1582 |
try (PoolCleaner cleaner = cleaner(e)) { |
1583 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
1584 |
assertTrue(r.isEmpty()); |
1585 |
} |
1586 |
} |
1587 |
|
1588 |
/** |
1589 |
* invokeAll(c) throws NPE if c has null elements |
1590 |
*/ |
1591 |
public void testInvokeAll3() throws Exception { |
1592 |
final ExecutorService e = |
1593 |
new ThreadPoolExecutor(2, 2, |
1594 |
LONG_DELAY_MS, MILLISECONDS, |
1595 |
new ArrayBlockingQueue<Runnable>(10)); |
1596 |
try (PoolCleaner cleaner = cleaner(e)) { |
1597 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1598 |
l.add(new StringTask()); |
1599 |
l.add(null); |
1600 |
try { |
1601 |
e.invokeAll(l); |
1602 |
shouldThrow(); |
1603 |
} catch (NullPointerException success) {} |
1604 |
} |
1605 |
} |
1606 |
|
1607 |
/** |
1608 |
* get of element of invokeAll(c) throws exception on failed task |
1609 |
*/ |
1610 |
public void testInvokeAll4() throws Exception { |
1611 |
final ExecutorService e = |
1612 |
new ThreadPoolExecutor(2, 2, |
1613 |
LONG_DELAY_MS, MILLISECONDS, |
1614 |
new ArrayBlockingQueue<Runnable>(10)); |
1615 |
try (PoolCleaner cleaner = cleaner(e)) { |
1616 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1617 |
l.add(new NPETask()); |
1618 |
List<Future<String>> futures = e.invokeAll(l); |
1619 |
assertEquals(1, futures.size()); |
1620 |
try { |
1621 |
futures.get(0).get(); |
1622 |
shouldThrow(); |
1623 |
} catch (ExecutionException success) { |
1624 |
assertTrue(success.getCause() instanceof NullPointerException); |
1625 |
} |
1626 |
} |
1627 |
} |
1628 |
|
1629 |
/** |
1630 |
* invokeAll(c) returns results of all completed tasks |
1631 |
*/ |
1632 |
public void testInvokeAll5() throws Exception { |
1633 |
final ExecutorService e = |
1634 |
new ThreadPoolExecutor(2, 2, |
1635 |
LONG_DELAY_MS, MILLISECONDS, |
1636 |
new ArrayBlockingQueue<Runnable>(10)); |
1637 |
try (PoolCleaner cleaner = cleaner(e)) { |
1638 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1639 |
l.add(new StringTask()); |
1640 |
l.add(new StringTask()); |
1641 |
List<Future<String>> futures = e.invokeAll(l); |
1642 |
assertEquals(2, futures.size()); |
1643 |
for (Future<String> future : futures) |
1644 |
assertSame(TEST_STRING, future.get()); |
1645 |
} |
1646 |
} |
1647 |
|
1648 |
/** |
1649 |
* timed invokeAny(null) throws NPE |
1650 |
*/ |
1651 |
public void testTimedInvokeAny1() throws Exception { |
1652 |
final ExecutorService e = |
1653 |
new ThreadPoolExecutor(2, 2, |
1654 |
LONG_DELAY_MS, MILLISECONDS, |
1655 |
new ArrayBlockingQueue<Runnable>(10)); |
1656 |
try (PoolCleaner cleaner = cleaner(e)) { |
1657 |
try { |
1658 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1659 |
shouldThrow(); |
1660 |
} catch (NullPointerException success) {} |
1661 |
} |
1662 |
} |
1663 |
|
1664 |
/** |
1665 |
* timed invokeAny(,,null) throws NPE |
1666 |
*/ |
1667 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1668 |
final ExecutorService e = |
1669 |
new ThreadPoolExecutor(2, 2, |
1670 |
LONG_DELAY_MS, MILLISECONDS, |
1671 |
new ArrayBlockingQueue<Runnable>(10)); |
1672 |
try (PoolCleaner cleaner = cleaner(e)) { |
1673 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1674 |
l.add(new StringTask()); |
1675 |
try { |
1676 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1677 |
shouldThrow(); |
1678 |
} catch (NullPointerException success) {} |
1679 |
} |
1680 |
} |
1681 |
|
1682 |
/** |
1683 |
* timed invokeAny(empty collection) throws IAE |
1684 |
*/ |
1685 |
public void testTimedInvokeAny2() throws Exception { |
1686 |
final ExecutorService e = |
1687 |
new ThreadPoolExecutor(2, 2, |
1688 |
LONG_DELAY_MS, MILLISECONDS, |
1689 |
new ArrayBlockingQueue<Runnable>(10)); |
1690 |
try (PoolCleaner cleaner = cleaner(e)) { |
1691 |
try { |
1692 |
e.invokeAny(new ArrayList<Callable<String>>(), |
1693 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1694 |
shouldThrow(); |
1695 |
} catch (IllegalArgumentException success) {} |
1696 |
} |
1697 |
} |
1698 |
|
1699 |
/** |
1700 |
* timed invokeAny(c) throws NPE if c has null elements |
1701 |
*/ |
1702 |
public void testTimedInvokeAny3() throws Exception { |
1703 |
final CountDownLatch latch = new CountDownLatch(1); |
1704 |
final ExecutorService e = |
1705 |
new ThreadPoolExecutor(2, 2, |
1706 |
LONG_DELAY_MS, MILLISECONDS, |
1707 |
new ArrayBlockingQueue<Runnable>(10)); |
1708 |
try (PoolCleaner cleaner = cleaner(e)) { |
1709 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1710 |
l.add(latchAwaitingStringTask(latch)); |
1711 |
l.add(null); |
1712 |
try { |
1713 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1714 |
shouldThrow(); |
1715 |
} catch (NullPointerException success) {} |
1716 |
latch.countDown(); |
1717 |
} |
1718 |
} |
1719 |
|
1720 |
/** |
1721 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1722 |
*/ |
1723 |
public void testTimedInvokeAny4() throws Exception { |
1724 |
final ExecutorService e = |
1725 |
new ThreadPoolExecutor(2, 2, |
1726 |
LONG_DELAY_MS, MILLISECONDS, |
1727 |
new ArrayBlockingQueue<Runnable>(10)); |
1728 |
try (PoolCleaner cleaner = cleaner(e)) { |
1729 |
long startTime = System.nanoTime(); |
1730 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1731 |
l.add(new NPETask()); |
1732 |
try { |
1733 |
e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1734 |
shouldThrow(); |
1735 |
} catch (ExecutionException success) { |
1736 |
assertTrue(success.getCause() instanceof NullPointerException); |
1737 |
} |
1738 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1739 |
} |
1740 |
} |
1741 |
|
1742 |
/** |
1743 |
* timed invokeAny(c) returns result of some task |
1744 |
*/ |
1745 |
public void testTimedInvokeAny5() throws Exception { |
1746 |
final ExecutorService e = |
1747 |
new ThreadPoolExecutor(2, 2, |
1748 |
LONG_DELAY_MS, MILLISECONDS, |
1749 |
new ArrayBlockingQueue<Runnable>(10)); |
1750 |
try (PoolCleaner cleaner = cleaner(e)) { |
1751 |
long startTime = System.nanoTime(); |
1752 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1753 |
l.add(new StringTask()); |
1754 |
l.add(new StringTask()); |
1755 |
String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1756 |
assertSame(TEST_STRING, result); |
1757 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1758 |
} |
1759 |
} |
1760 |
|
1761 |
/** |
1762 |
* timed invokeAll(null) throws NPE |
1763 |
*/ |
1764 |
public void testTimedInvokeAll1() throws Exception { |
1765 |
final ExecutorService e = |
1766 |
new ThreadPoolExecutor(2, 2, |
1767 |
LONG_DELAY_MS, MILLISECONDS, |
1768 |
new ArrayBlockingQueue<Runnable>(10)); |
1769 |
try (PoolCleaner cleaner = cleaner(e)) { |
1770 |
try { |
1771 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1772 |
shouldThrow(); |
1773 |
} catch (NullPointerException success) {} |
1774 |
} |
1775 |
} |
1776 |
|
1777 |
/** |
1778 |
* timed invokeAll(,,null) throws NPE |
1779 |
*/ |
1780 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1781 |
final ExecutorService e = |
1782 |
new ThreadPoolExecutor(2, 2, |
1783 |
LONG_DELAY_MS, MILLISECONDS, |
1784 |
new ArrayBlockingQueue<Runnable>(10)); |
1785 |
try (PoolCleaner cleaner = cleaner(e)) { |
1786 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1787 |
l.add(new StringTask()); |
1788 |
try { |
1789 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1790 |
shouldThrow(); |
1791 |
} catch (NullPointerException success) {} |
1792 |
} |
1793 |
} |
1794 |
|
1795 |
/** |
1796 |
* timed invokeAll(empty collection) returns empty collection |
1797 |
*/ |
1798 |
public void testTimedInvokeAll2() throws InterruptedException { |
1799 |
final ExecutorService e = |
1800 |
new ThreadPoolExecutor(2, 2, |
1801 |
LONG_DELAY_MS, MILLISECONDS, |
1802 |
new ArrayBlockingQueue<Runnable>(10)); |
1803 |
try (PoolCleaner cleaner = cleaner(e)) { |
1804 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), |
1805 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1806 |
assertTrue(r.isEmpty()); |
1807 |
} |
1808 |
} |
1809 |
|
1810 |
/** |
1811 |
* timed invokeAll(c) throws NPE if c has null elements |
1812 |
*/ |
1813 |
public void testTimedInvokeAll3() throws Exception { |
1814 |
final ExecutorService e = |
1815 |
new ThreadPoolExecutor(2, 2, |
1816 |
LONG_DELAY_MS, MILLISECONDS, |
1817 |
new ArrayBlockingQueue<Runnable>(10)); |
1818 |
try (PoolCleaner cleaner = cleaner(e)) { |
1819 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1820 |
l.add(new StringTask()); |
1821 |
l.add(null); |
1822 |
try { |
1823 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1824 |
shouldThrow(); |
1825 |
} catch (NullPointerException success) {} |
1826 |
} |
1827 |
} |
1828 |
|
1829 |
/** |
1830 |
* get of element of invokeAll(c) throws exception on failed task |
1831 |
*/ |
1832 |
public void testTimedInvokeAll4() throws Exception { |
1833 |
final ExecutorService e = |
1834 |
new ThreadPoolExecutor(2, 2, |
1835 |
LONG_DELAY_MS, MILLISECONDS, |
1836 |
new ArrayBlockingQueue<Runnable>(10)); |
1837 |
try (PoolCleaner cleaner = cleaner(e)) { |
1838 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1839 |
l.add(new NPETask()); |
1840 |
List<Future<String>> futures = |
1841 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1842 |
assertEquals(1, futures.size()); |
1843 |
try { |
1844 |
futures.get(0).get(); |
1845 |
shouldThrow(); |
1846 |
} catch (ExecutionException success) { |
1847 |
assertTrue(success.getCause() instanceof NullPointerException); |
1848 |
} |
1849 |
} |
1850 |
} |
1851 |
|
1852 |
/** |
1853 |
* timed invokeAll(c) returns results of all completed tasks |
1854 |
*/ |
1855 |
public void testTimedInvokeAll5() throws Exception { |
1856 |
final ExecutorService e = |
1857 |
new ThreadPoolExecutor(2, 2, |
1858 |
LONG_DELAY_MS, MILLISECONDS, |
1859 |
new ArrayBlockingQueue<Runnable>(10)); |
1860 |
try (PoolCleaner cleaner = cleaner(e)) { |
1861 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1862 |
l.add(new StringTask()); |
1863 |
l.add(new StringTask()); |
1864 |
List<Future<String>> futures = |
1865 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1866 |
assertEquals(2, futures.size()); |
1867 |
for (Future<String> future : futures) |
1868 |
assertSame(TEST_STRING, future.get()); |
1869 |
} |
1870 |
} |
1871 |
|
1872 |
/** |
1873 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1874 |
*/ |
1875 |
public void testTimedInvokeAll6() throws Exception { |
1876 |
for (long timeout = timeoutMillis();;) { |
1877 |
final CountDownLatch done = new CountDownLatch(1); |
1878 |
final Callable<String> waiter = new CheckedCallable<String>() { |
1879 |
public String realCall() { |
1880 |
try { done.await(LONG_DELAY_MS, MILLISECONDS); } |
1881 |
catch (InterruptedException ok) {} |
1882 |
return "1"; }}; |
1883 |
final ExecutorService p = |
1884 |
new ThreadPoolExecutor(2, 2, |
1885 |
LONG_DELAY_MS, MILLISECONDS, |
1886 |
new ArrayBlockingQueue<Runnable>(10)); |
1887 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1888 |
List<Callable<String>> tasks = new ArrayList<>(); |
1889 |
tasks.add(new StringTask("0")); |
1890 |
tasks.add(waiter); |
1891 |
tasks.add(new StringTask("2")); |
1892 |
long startTime = System.nanoTime(); |
1893 |
List<Future<String>> futures = |
1894 |
p.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 CountDownLatch done = new CountDownLatch(1); |
2033 |
final ExecutorService e = |
2034 |
new ThreadPoolExecutor(1, 1, |
2035 |
LONG_DELAY_MS, MILLISECONDS, |
2036 |
new LinkedBlockingQueue<Runnable>()); |
2037 |
try (PoolCleaner cleaner = cleaner(e, done)) { |
2038 |
final CountDownLatch blockerStarted = 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 |
await(blockerStarted); |
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 |
} |
2063 |
} |
2064 |
|
2065 |
} |