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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.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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|
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import junit.framework.Test; |
33 |
import junit.framework.TestSuite; |
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|
35 |
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>()); |
50 |
} |
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protected void beforeExecute(Thread t, Runnable r) { |
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beforeCalled.countDown(); |
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} |
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protected void afterExecute(Runnable r, Throwable t) { |
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afterCalled.countDown(); |
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} |
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protected void terminated() { |
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terminatedCalled.countDown(); |
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} |
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|
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public boolean beforeCalled() { |
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return beforeCalled.getCount() == 0; |
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} |
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public boolean afterCalled() { |
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return afterCalled.getCount() == 0; |
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} |
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public boolean terminatedCalled() { |
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return terminatedCalled.getCount() == 0; |
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} |
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} |
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|
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static class FailingThreadFactory implements ThreadFactory { |
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int calls = 0; |
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public Thread newThread(Runnable r) { |
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if (++calls > 1) return null; |
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return new Thread(r); |
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} |
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} |
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|
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/** |
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* execute successfully executes a runnable |
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*/ |
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public void testExecute() throws InterruptedException { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(1, 1, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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final CountDownLatch done = new CountDownLatch(1); |
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final Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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}}; |
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try { |
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p.execute(task); |
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assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* getActiveCount increases but doesn't overestimate, when a |
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* thread becomes active |
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*/ |
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public void testGetActiveCount() throws InterruptedException { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(2, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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final CountDownLatch done = new CountDownLatch(1); |
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try { |
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assertEquals(0, p.getActiveCount()); |
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p.execute(new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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threadStarted.countDown(); |
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assertEquals(1, p.getActiveCount()); |
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done.await(); |
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}}); |
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assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
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assertEquals(1, p.getActiveCount()); |
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} finally { |
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done.countDown(); |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* prestartCoreThread starts a thread if under corePoolSize, else doesn't |
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*/ |
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public void testPrestartCoreThread() { |
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final ThreadPoolExecutor p = |
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new ThreadPoolExecutor(2, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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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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joinPool(p); |
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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, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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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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joinPool(p); |
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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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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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try { |
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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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} finally { |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* 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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assertEquals(1, p.getCorePoolSize()); |
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joinPool(p); |
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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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assertEquals(1, p.getKeepAliveTime(TimeUnit.SECONDS)); |
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joinPool(p); |
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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 tf = 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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tf, |
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new NoOpREHandler()); |
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assertSame(tf, p.getThreadFactory()); |
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joinPool(p); |
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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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ThreadFactory tf = new SimpleThreadFactory(); |
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p.setThreadFactory(tf); |
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assertSame(tf, p.getThreadFactory()); |
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joinPool(p); |
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} |
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|
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/** |
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* setThreadFactory(null) throws NPE |
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*/ |
254 |
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 { |
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p.setThreadFactory(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* getRejectedExecutionHandler returns handler in constructor if not set |
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*/ |
271 |
public void testGetRejectedExecutionHandler() { |
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final RejectedExecutionHandler h = 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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h); |
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assertSame(h, p.getRejectedExecutionHandler()); |
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joinPool(p); |
280 |
} |
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|
282 |
/** |
283 |
* setRejectedExecutionHandler sets the handler returned by |
284 |
* getRejectedExecutionHandler |
285 |
*/ |
286 |
public void testSetRejectedExecutionHandler() { |
287 |
final ThreadPoolExecutor p = |
288 |
new ThreadPoolExecutor(1, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
291 |
RejectedExecutionHandler h = new NoOpREHandler(); |
292 |
p.setRejectedExecutionHandler(h); |
293 |
assertSame(h, p.getRejectedExecutionHandler()); |
294 |
joinPool(p); |
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} |
296 |
|
297 |
/** |
298 |
* setRejectedExecutionHandler(null) throws NPE |
299 |
*/ |
300 |
public void testSetRejectedExecutionHandlerNull() { |
301 |
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)); |
305 |
try { |
306 |
p.setRejectedExecutionHandler(null); |
307 |
shouldThrow(); |
308 |
} catch (NullPointerException success) { |
309 |
} finally { |
310 |
joinPool(p); |
311 |
} |
312 |
} |
313 |
|
314 |
/** |
315 |
* getLargestPoolSize increases, but doesn't overestimate, when |
316 |
* multiple threads active |
317 |
*/ |
318 |
public void testGetLargestPoolSize() throws InterruptedException { |
319 |
final int THREADS = 3; |
320 |
final ThreadPoolExecutor p = |
321 |
new ThreadPoolExecutor(THREADS, THREADS, |
322 |
LONG_DELAY_MS, MILLISECONDS, |
323 |
new ArrayBlockingQueue<Runnable>(10)); |
324 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
325 |
final CountDownLatch done = new CountDownLatch(1); |
326 |
try { |
327 |
assertEquals(0, p.getLargestPoolSize()); |
328 |
for (int i = 0; i < THREADS; i++) |
329 |
p.execute(new CheckedRunnable() { |
330 |
public void realRun() throws InterruptedException { |
331 |
threadsStarted.countDown(); |
332 |
done.await(); |
333 |
assertEquals(THREADS, p.getLargestPoolSize()); |
334 |
}}); |
335 |
assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
336 |
assertEquals(THREADS, p.getLargestPoolSize()); |
337 |
} finally { |
338 |
done.countDown(); |
339 |
joinPool(p); |
340 |
assertEquals(THREADS, p.getLargestPoolSize()); |
341 |
} |
342 |
} |
343 |
|
344 |
/** |
345 |
* getMaximumPoolSize returns value given in constructor if not |
346 |
* otherwise set |
347 |
*/ |
348 |
public void testGetMaximumPoolSize() { |
349 |
final ThreadPoolExecutor p = |
350 |
new ThreadPoolExecutor(2, 3, |
351 |
LONG_DELAY_MS, MILLISECONDS, |
352 |
new ArrayBlockingQueue<Runnable>(10)); |
353 |
assertEquals(3, p.getMaximumPoolSize()); |
354 |
joinPool(p); |
355 |
} |
356 |
|
357 |
/** |
358 |
* getPoolSize increases, but doesn't overestimate, when threads |
359 |
* become active |
360 |
*/ |
361 |
public void testGetPoolSize() throws InterruptedException { |
362 |
final ThreadPoolExecutor p = |
363 |
new ThreadPoolExecutor(1, 1, |
364 |
LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
366 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
367 |
final CountDownLatch done = new CountDownLatch(1); |
368 |
try { |
369 |
assertEquals(0, p.getPoolSize()); |
370 |
p.execute(new CheckedRunnable() { |
371 |
public void realRun() throws InterruptedException { |
372 |
threadStarted.countDown(); |
373 |
assertEquals(1, p.getPoolSize()); |
374 |
done.await(); |
375 |
}}); |
376 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
377 |
assertEquals(1, p.getPoolSize()); |
378 |
} finally { |
379 |
done.countDown(); |
380 |
joinPool(p); |
381 |
} |
382 |
} |
383 |
|
384 |
/** |
385 |
* getTaskCount increases, but doesn't overestimate, when tasks submitted |
386 |
*/ |
387 |
public void testGetTaskCount() throws InterruptedException { |
388 |
final ThreadPoolExecutor p = |
389 |
new ThreadPoolExecutor(1, 1, |
390 |
LONG_DELAY_MS, MILLISECONDS, |
391 |
new ArrayBlockingQueue<Runnable>(10)); |
392 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
393 |
final CountDownLatch done = new CountDownLatch(1); |
394 |
try { |
395 |
assertEquals(0, p.getTaskCount()); |
396 |
p.execute(new CheckedRunnable() { |
397 |
public void realRun() throws InterruptedException { |
398 |
threadStarted.countDown(); |
399 |
assertEquals(1, p.getTaskCount()); |
400 |
done.await(); |
401 |
}}); |
402 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
403 |
assertEquals(1, p.getTaskCount()); |
404 |
} finally { |
405 |
done.countDown(); |
406 |
joinPool(p); |
407 |
} |
408 |
} |
409 |
|
410 |
/** |
411 |
* isShutdown is false before shutdown, true after |
412 |
*/ |
413 |
public void testIsShutdown() { |
414 |
final ThreadPoolExecutor p = |
415 |
new ThreadPoolExecutor(1, 1, |
416 |
LONG_DELAY_MS, MILLISECONDS, |
417 |
new ArrayBlockingQueue<Runnable>(10)); |
418 |
assertFalse(p.isShutdown()); |
419 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
420 |
assertTrue(p.isShutdown()); |
421 |
joinPool(p); |
422 |
} |
423 |
|
424 |
/** |
425 |
* awaitTermination on a non-shutdown pool times out |
426 |
*/ |
427 |
public void testAwaitTermination_timesOut() throws InterruptedException { |
428 |
final ThreadPoolExecutor p = |
429 |
new ThreadPoolExecutor(1, 1, |
430 |
LONG_DELAY_MS, MILLISECONDS, |
431 |
new ArrayBlockingQueue<Runnable>(10)); |
432 |
assertFalse(p.isTerminated()); |
433 |
assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS)); |
434 |
assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
435 |
assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
436 |
assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
437 |
assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
438 |
assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
439 |
long timeoutNanos = 999999L; |
440 |
long startTime = System.nanoTime(); |
441 |
assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
442 |
assertTrue(System.nanoTime() - startTime >= timeoutNanos); |
443 |
assertFalse(p.isTerminated()); |
444 |
startTime = System.nanoTime(); |
445 |
long timeoutMillis = timeoutMillis(); |
446 |
assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS)); |
447 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
448 |
assertFalse(p.isTerminated()); |
449 |
p.shutdown(); |
450 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
451 |
assertTrue(p.isTerminated()); |
452 |
} |
453 |
|
454 |
/** |
455 |
* isTerminated is false before termination, true after |
456 |
*/ |
457 |
public void testIsTerminated() throws InterruptedException { |
458 |
final ThreadPoolExecutor p = |
459 |
new ThreadPoolExecutor(1, 1, |
460 |
LONG_DELAY_MS, MILLISECONDS, |
461 |
new ArrayBlockingQueue<Runnable>(10)); |
462 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
463 |
final CountDownLatch done = new CountDownLatch(1); |
464 |
assertFalse(p.isTerminated()); |
465 |
try { |
466 |
p.execute(new CheckedRunnable() { |
467 |
public void realRun() throws InterruptedException { |
468 |
assertFalse(p.isTerminated()); |
469 |
threadStarted.countDown(); |
470 |
done.await(); |
471 |
}}); |
472 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
473 |
assertFalse(p.isTerminating()); |
474 |
done.countDown(); |
475 |
} finally { |
476 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
477 |
} |
478 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
479 |
assertTrue(p.isTerminated()); |
480 |
} |
481 |
|
482 |
/** |
483 |
* isTerminating is not true when running or when terminated |
484 |
*/ |
485 |
public void testIsTerminating() throws InterruptedException { |
486 |
final ThreadPoolExecutor p = |
487 |
new ThreadPoolExecutor(1, 1, |
488 |
LONG_DELAY_MS, MILLISECONDS, |
489 |
new ArrayBlockingQueue<Runnable>(10)); |
490 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
491 |
final CountDownLatch done = new CountDownLatch(1); |
492 |
try { |
493 |
assertFalse(p.isTerminating()); |
494 |
p.execute(new CheckedRunnable() { |
495 |
public void realRun() throws InterruptedException { |
496 |
assertFalse(p.isTerminating()); |
497 |
threadStarted.countDown(); |
498 |
done.await(); |
499 |
}}); |
500 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
501 |
assertFalse(p.isTerminating()); |
502 |
done.countDown(); |
503 |
} finally { |
504 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
505 |
} |
506 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
507 |
assertTrue(p.isTerminated()); |
508 |
assertFalse(p.isTerminating()); |
509 |
} |
510 |
|
511 |
/** |
512 |
* getQueue returns the work queue, which contains queued tasks |
513 |
*/ |
514 |
public void testGetQueue() throws InterruptedException { |
515 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
516 |
final ThreadPoolExecutor p = |
517 |
new ThreadPoolExecutor(1, 1, |
518 |
LONG_DELAY_MS, MILLISECONDS, |
519 |
q); |
520 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
521 |
final CountDownLatch done = new CountDownLatch(1); |
522 |
try { |
523 |
FutureTask[] tasks = new FutureTask[5]; |
524 |
for (int i = 0; i < tasks.length; i++) { |
525 |
Callable task = new CheckedCallable<Boolean>() { |
526 |
public Boolean realCall() throws InterruptedException { |
527 |
threadStarted.countDown(); |
528 |
assertSame(q, p.getQueue()); |
529 |
done.await(); |
530 |
return Boolean.TRUE; |
531 |
}}; |
532 |
tasks[i] = new FutureTask(task); |
533 |
p.execute(tasks[i]); |
534 |
} |
535 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
536 |
assertSame(q, p.getQueue()); |
537 |
assertFalse(q.contains(tasks[0])); |
538 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
539 |
assertEquals(tasks.length - 1, q.size()); |
540 |
} finally { |
541 |
done.countDown(); |
542 |
joinPool(p); |
543 |
} |
544 |
} |
545 |
|
546 |
/** |
547 |
* remove(task) removes queued task, and fails to remove active task |
548 |
*/ |
549 |
public void testRemove() throws InterruptedException { |
550 |
BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
551 |
final ThreadPoolExecutor p = |
552 |
new ThreadPoolExecutor(1, 1, |
553 |
LONG_DELAY_MS, MILLISECONDS, |
554 |
q); |
555 |
Runnable[] tasks = new Runnable[5]; |
556 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
557 |
final CountDownLatch done = new CountDownLatch(1); |
558 |
try { |
559 |
for (int i = 0; i < tasks.length; i++) { |
560 |
tasks[i] = new CheckedRunnable() { |
561 |
public void realRun() throws InterruptedException { |
562 |
threadStarted.countDown(); |
563 |
done.await(); |
564 |
}}; |
565 |
p.execute(tasks[i]); |
566 |
} |
567 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
568 |
assertFalse(p.remove(tasks[0])); |
569 |
assertTrue(q.contains(tasks[4])); |
570 |
assertTrue(q.contains(tasks[3])); |
571 |
assertTrue(p.remove(tasks[4])); |
572 |
assertFalse(p.remove(tasks[4])); |
573 |
assertFalse(q.contains(tasks[4])); |
574 |
assertTrue(q.contains(tasks[3])); |
575 |
assertTrue(p.remove(tasks[3])); |
576 |
assertFalse(q.contains(tasks[3])); |
577 |
} finally { |
578 |
done.countDown(); |
579 |
joinPool(p); |
580 |
} |
581 |
} |
582 |
|
583 |
/** |
584 |
* purge removes cancelled tasks from the queue |
585 |
*/ |
586 |
public void testPurge() throws InterruptedException { |
587 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
588 |
final CountDownLatch done = new CountDownLatch(1); |
589 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
590 |
final ThreadPoolExecutor p = |
591 |
new ThreadPoolExecutor(1, 1, |
592 |
LONG_DELAY_MS, MILLISECONDS, |
593 |
q); |
594 |
FutureTask[] tasks = new FutureTask[5]; |
595 |
try { |
596 |
for (int i = 0; i < tasks.length; i++) { |
597 |
Callable task = new CheckedCallable<Boolean>() { |
598 |
public Boolean realCall() throws InterruptedException { |
599 |
threadStarted.countDown(); |
600 |
done.await(); |
601 |
return Boolean.TRUE; |
602 |
}}; |
603 |
tasks[i] = new FutureTask(task); |
604 |
p.execute(tasks[i]); |
605 |
} |
606 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
607 |
assertEquals(tasks.length, p.getTaskCount()); |
608 |
assertEquals(tasks.length - 1, q.size()); |
609 |
assertEquals(1L, p.getActiveCount()); |
610 |
assertEquals(0L, p.getCompletedTaskCount()); |
611 |
tasks[4].cancel(true); |
612 |
tasks[3].cancel(false); |
613 |
p.purge(); |
614 |
assertEquals(tasks.length - 3, q.size()); |
615 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
616 |
p.purge(); // Nothing to do |
617 |
assertEquals(tasks.length - 3, q.size()); |
618 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
619 |
} finally { |
620 |
done.countDown(); |
621 |
joinPool(p); |
622 |
} |
623 |
} |
624 |
|
625 |
/** |
626 |
* shutdownNow returns a list containing tasks that were not run |
627 |
*/ |
628 |
public void testShutdownNow() { |
629 |
final ThreadPoolExecutor p = |
630 |
new ThreadPoolExecutor(1, 1, |
631 |
LONG_DELAY_MS, MILLISECONDS, |
632 |
new ArrayBlockingQueue<Runnable>(10)); |
633 |
List l; |
634 |
try { |
635 |
for (int i = 0; i < 5; i++) |
636 |
p.execute(new MediumPossiblyInterruptedRunnable()); |
637 |
} |
638 |
finally { |
639 |
try { |
640 |
l = p.shutdownNow(); |
641 |
} catch (SecurityException ok) { return; } |
642 |
} |
643 |
assertTrue(p.isShutdown()); |
644 |
assertTrue(l.size() <= 4); |
645 |
} |
646 |
|
647 |
// Exception Tests |
648 |
|
649 |
/** |
650 |
* Constructor throws if corePoolSize argument is less than zero |
651 |
*/ |
652 |
public void testConstructor1() { |
653 |
try { |
654 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
655 |
new ArrayBlockingQueue<Runnable>(10)); |
656 |
shouldThrow(); |
657 |
} catch (IllegalArgumentException success) {} |
658 |
} |
659 |
|
660 |
/** |
661 |
* Constructor throws if maximumPoolSize is less than zero |
662 |
*/ |
663 |
public void testConstructor2() { |
664 |
try { |
665 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
666 |
new ArrayBlockingQueue<Runnable>(10)); |
667 |
shouldThrow(); |
668 |
} catch (IllegalArgumentException success) {} |
669 |
} |
670 |
|
671 |
/** |
672 |
* Constructor throws if maximumPoolSize is equal to zero |
673 |
*/ |
674 |
public void testConstructor3() { |
675 |
try { |
676 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
677 |
new ArrayBlockingQueue<Runnable>(10)); |
678 |
shouldThrow(); |
679 |
} catch (IllegalArgumentException success) {} |
680 |
} |
681 |
|
682 |
/** |
683 |
* Constructor throws if keepAliveTime is less than zero |
684 |
*/ |
685 |
public void testConstructor4() { |
686 |
try { |
687 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
688 |
new ArrayBlockingQueue<Runnable>(10)); |
689 |
shouldThrow(); |
690 |
} catch (IllegalArgumentException success) {} |
691 |
} |
692 |
|
693 |
/** |
694 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
695 |
*/ |
696 |
public void testConstructor5() { |
697 |
try { |
698 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
699 |
new ArrayBlockingQueue<Runnable>(10)); |
700 |
shouldThrow(); |
701 |
} catch (IllegalArgumentException success) {} |
702 |
} |
703 |
|
704 |
/** |
705 |
* Constructor throws if workQueue is set to null |
706 |
*/ |
707 |
public void testConstructorNullPointerException() { |
708 |
try { |
709 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
710 |
(BlockingQueue) null); |
711 |
shouldThrow(); |
712 |
} catch (NullPointerException success) {} |
713 |
} |
714 |
|
715 |
/** |
716 |
* Constructor throws if corePoolSize argument is less than zero |
717 |
*/ |
718 |
public void testConstructor6() { |
719 |
try { |
720 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
721 |
new ArrayBlockingQueue<Runnable>(10), |
722 |
new SimpleThreadFactory()); |
723 |
shouldThrow(); |
724 |
} catch (IllegalArgumentException success) {} |
725 |
} |
726 |
|
727 |
/** |
728 |
* Constructor throws if maximumPoolSize is less than zero |
729 |
*/ |
730 |
public void testConstructor7() { |
731 |
try { |
732 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
733 |
new ArrayBlockingQueue<Runnable>(10), |
734 |
new SimpleThreadFactory()); |
735 |
shouldThrow(); |
736 |
} catch (IllegalArgumentException success) {} |
737 |
} |
738 |
|
739 |
/** |
740 |
* Constructor throws if maximumPoolSize is equal to zero |
741 |
*/ |
742 |
public void testConstructor8() { |
743 |
try { |
744 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
745 |
new ArrayBlockingQueue<Runnable>(10), |
746 |
new SimpleThreadFactory()); |
747 |
shouldThrow(); |
748 |
} catch (IllegalArgumentException success) {} |
749 |
} |
750 |
|
751 |
/** |
752 |
* Constructor throws if keepAliveTime is less than zero |
753 |
*/ |
754 |
public void testConstructor9() { |
755 |
try { |
756 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
757 |
new ArrayBlockingQueue<Runnable>(10), |
758 |
new SimpleThreadFactory()); |
759 |
shouldThrow(); |
760 |
} catch (IllegalArgumentException success) {} |
761 |
} |
762 |
|
763 |
/** |
764 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
765 |
*/ |
766 |
public void testConstructor10() { |
767 |
try { |
768 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
769 |
new ArrayBlockingQueue<Runnable>(10), |
770 |
new SimpleThreadFactory()); |
771 |
shouldThrow(); |
772 |
} catch (IllegalArgumentException success) {} |
773 |
} |
774 |
|
775 |
/** |
776 |
* Constructor throws if workQueue is set to null |
777 |
*/ |
778 |
public void testConstructorNullPointerException2() { |
779 |
try { |
780 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
781 |
(BlockingQueue) null, |
782 |
new SimpleThreadFactory()); |
783 |
shouldThrow(); |
784 |
} catch (NullPointerException success) {} |
785 |
} |
786 |
|
787 |
/** |
788 |
* Constructor throws if threadFactory is set to null |
789 |
*/ |
790 |
public void testConstructorNullPointerException3() { |
791 |
try { |
792 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
793 |
new ArrayBlockingQueue<Runnable>(10), |
794 |
(ThreadFactory) null); |
795 |
shouldThrow(); |
796 |
} catch (NullPointerException success) {} |
797 |
} |
798 |
|
799 |
/** |
800 |
* Constructor throws if corePoolSize argument is less than zero |
801 |
*/ |
802 |
public void testConstructor11() { |
803 |
try { |
804 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
805 |
new ArrayBlockingQueue<Runnable>(10), |
806 |
new NoOpREHandler()); |
807 |
shouldThrow(); |
808 |
} catch (IllegalArgumentException success) {} |
809 |
} |
810 |
|
811 |
/** |
812 |
* Constructor throws if maximumPoolSize is less than zero |
813 |
*/ |
814 |
public void testConstructor12() { |
815 |
try { |
816 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
817 |
new ArrayBlockingQueue<Runnable>(10), |
818 |
new NoOpREHandler()); |
819 |
shouldThrow(); |
820 |
} catch (IllegalArgumentException success) {} |
821 |
} |
822 |
|
823 |
/** |
824 |
* Constructor throws if maximumPoolSize is equal to zero |
825 |
*/ |
826 |
public void testConstructor13() { |
827 |
try { |
828 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
829 |
new ArrayBlockingQueue<Runnable>(10), |
830 |
new NoOpREHandler()); |
831 |
shouldThrow(); |
832 |
} catch (IllegalArgumentException success) {} |
833 |
} |
834 |
|
835 |
/** |
836 |
* Constructor throws if keepAliveTime is less than zero |
837 |
*/ |
838 |
public void testConstructor14() { |
839 |
try { |
840 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
841 |
new ArrayBlockingQueue<Runnable>(10), |
842 |
new NoOpREHandler()); |
843 |
shouldThrow(); |
844 |
} catch (IllegalArgumentException success) {} |
845 |
} |
846 |
|
847 |
/** |
848 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
849 |
*/ |
850 |
public void testConstructor15() { |
851 |
try { |
852 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
853 |
new ArrayBlockingQueue<Runnable>(10), |
854 |
new NoOpREHandler()); |
855 |
shouldThrow(); |
856 |
} catch (IllegalArgumentException success) {} |
857 |
} |
858 |
|
859 |
/** |
860 |
* Constructor throws if workQueue is set to null |
861 |
*/ |
862 |
public void testConstructorNullPointerException4() { |
863 |
try { |
864 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
865 |
(BlockingQueue) null, |
866 |
new NoOpREHandler()); |
867 |
shouldThrow(); |
868 |
} catch (NullPointerException success) {} |
869 |
} |
870 |
|
871 |
/** |
872 |
* Constructor throws if handler is set to null |
873 |
*/ |
874 |
public void testConstructorNullPointerException5() { |
875 |
try { |
876 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
877 |
new ArrayBlockingQueue<Runnable>(10), |
878 |
(RejectedExecutionHandler) null); |
879 |
shouldThrow(); |
880 |
} catch (NullPointerException success) {} |
881 |
} |
882 |
|
883 |
/** |
884 |
* Constructor throws if corePoolSize argument is less than zero |
885 |
*/ |
886 |
public void testConstructor16() { |
887 |
try { |
888 |
new ThreadPoolExecutor(-1, 1, 1L, SECONDS, |
889 |
new ArrayBlockingQueue<Runnable>(10), |
890 |
new SimpleThreadFactory(), |
891 |
new NoOpREHandler()); |
892 |
shouldThrow(); |
893 |
} catch (IllegalArgumentException success) {} |
894 |
} |
895 |
|
896 |
/** |
897 |
* Constructor throws if maximumPoolSize is less than zero |
898 |
*/ |
899 |
public void testConstructor17() { |
900 |
try { |
901 |
new ThreadPoolExecutor(1, -1, 1L, SECONDS, |
902 |
new ArrayBlockingQueue<Runnable>(10), |
903 |
new SimpleThreadFactory(), |
904 |
new NoOpREHandler()); |
905 |
shouldThrow(); |
906 |
} catch (IllegalArgumentException success) {} |
907 |
} |
908 |
|
909 |
/** |
910 |
* Constructor throws if maximumPoolSize is equal to zero |
911 |
*/ |
912 |
public void testConstructor18() { |
913 |
try { |
914 |
new ThreadPoolExecutor(1, 0, 1L, SECONDS, |
915 |
new ArrayBlockingQueue<Runnable>(10), |
916 |
new SimpleThreadFactory(), |
917 |
new NoOpREHandler()); |
918 |
shouldThrow(); |
919 |
} catch (IllegalArgumentException success) {} |
920 |
} |
921 |
|
922 |
/** |
923 |
* Constructor throws if keepAliveTime is less than zero |
924 |
*/ |
925 |
public void testConstructor19() { |
926 |
try { |
927 |
new ThreadPoolExecutor(1, 2, -1L, SECONDS, |
928 |
new ArrayBlockingQueue<Runnable>(10), |
929 |
new SimpleThreadFactory(), |
930 |
new NoOpREHandler()); |
931 |
shouldThrow(); |
932 |
} catch (IllegalArgumentException success) {} |
933 |
} |
934 |
|
935 |
/** |
936 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
937 |
*/ |
938 |
public void testConstructor20() { |
939 |
try { |
940 |
new ThreadPoolExecutor(2, 1, 1L, SECONDS, |
941 |
new ArrayBlockingQueue<Runnable>(10), |
942 |
new SimpleThreadFactory(), |
943 |
new NoOpREHandler()); |
944 |
shouldThrow(); |
945 |
} catch (IllegalArgumentException success) {} |
946 |
} |
947 |
|
948 |
/** |
949 |
* Constructor throws if workQueue is null |
950 |
*/ |
951 |
public void testConstructorNullPointerException6() { |
952 |
try { |
953 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
954 |
(BlockingQueue) null, |
955 |
new SimpleThreadFactory(), |
956 |
new NoOpREHandler()); |
957 |
shouldThrow(); |
958 |
} catch (NullPointerException success) {} |
959 |
} |
960 |
|
961 |
/** |
962 |
* Constructor throws if handler is null |
963 |
*/ |
964 |
public void testConstructorNullPointerException7() { |
965 |
try { |
966 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
967 |
new ArrayBlockingQueue<Runnable>(10), |
968 |
new SimpleThreadFactory(), |
969 |
(RejectedExecutionHandler) null); |
970 |
shouldThrow(); |
971 |
} catch (NullPointerException success) {} |
972 |
} |
973 |
|
974 |
/** |
975 |
* Constructor throws if ThreadFactory is null |
976 |
*/ |
977 |
public void testConstructorNullPointerException8() { |
978 |
try { |
979 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
980 |
new ArrayBlockingQueue<Runnable>(10), |
981 |
(ThreadFactory) null, |
982 |
new NoOpREHandler()); |
983 |
shouldThrow(); |
984 |
} catch (NullPointerException success) {} |
985 |
} |
986 |
|
987 |
/** |
988 |
* get of submitted callable throws InterruptedException if interrupted |
989 |
*/ |
990 |
public void testInterruptedSubmit() throws InterruptedException { |
991 |
final ThreadPoolExecutor p = |
992 |
new ThreadPoolExecutor(1, 1, |
993 |
60, TimeUnit.SECONDS, |
994 |
new ArrayBlockingQueue<Runnable>(10)); |
995 |
|
996 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
997 |
final CountDownLatch done = new CountDownLatch(1); |
998 |
try { |
999 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1000 |
public void realRun() throws Exception { |
1001 |
Callable task = new CheckedCallable<Boolean>() { |
1002 |
public Boolean realCall() throws InterruptedException { |
1003 |
threadStarted.countDown(); |
1004 |
done.await(); |
1005 |
return Boolean.TRUE; |
1006 |
}}; |
1007 |
p.submit(task).get(); |
1008 |
}}); |
1009 |
|
1010 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
1011 |
t.interrupt(); |
1012 |
awaitTermination(t, MEDIUM_DELAY_MS); |
1013 |
} finally { |
1014 |
done.countDown(); |
1015 |
joinPool(p); |
1016 |
} |
1017 |
} |
1018 |
|
1019 |
/** |
1020 |
* execute throws RejectedExecutionException if saturated. |
1021 |
*/ |
1022 |
public void testSaturatedExecute() { |
1023 |
ThreadPoolExecutor p = |
1024 |
new ThreadPoolExecutor(1, 1, |
1025 |
LONG_DELAY_MS, MILLISECONDS, |
1026 |
new ArrayBlockingQueue<Runnable>(1)); |
1027 |
final CountDownLatch done = new CountDownLatch(1); |
1028 |
try { |
1029 |
Runnable task = new CheckedRunnable() { |
1030 |
public void realRun() throws InterruptedException { |
1031 |
done.await(); |
1032 |
}}; |
1033 |
for (int i = 0; i < 2; ++i) |
1034 |
p.execute(task); |
1035 |
for (int i = 0; i < 2; ++i) { |
1036 |
try { |
1037 |
p.execute(task); |
1038 |
shouldThrow(); |
1039 |
} catch (RejectedExecutionException success) {} |
1040 |
assertTrue(p.getTaskCount() <= 2); |
1041 |
} |
1042 |
} finally { |
1043 |
done.countDown(); |
1044 |
joinPool(p); |
1045 |
} |
1046 |
} |
1047 |
|
1048 |
/** |
1049 |
* submit(runnable) throws RejectedExecutionException if saturated. |
1050 |
*/ |
1051 |
public void testSaturatedSubmitRunnable() { |
1052 |
ThreadPoolExecutor p = |
1053 |
new ThreadPoolExecutor(1, 1, |
1054 |
LONG_DELAY_MS, MILLISECONDS, |
1055 |
new ArrayBlockingQueue<Runnable>(1)); |
1056 |
final CountDownLatch done = new CountDownLatch(1); |
1057 |
try { |
1058 |
Runnable task = new CheckedRunnable() { |
1059 |
public void realRun() throws InterruptedException { |
1060 |
done.await(); |
1061 |
}}; |
1062 |
for (int i = 0; i < 2; ++i) |
1063 |
p.submit(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 |
} finally { |
1072 |
done.countDown(); |
1073 |
joinPool(p); |
1074 |
} |
1075 |
} |
1076 |
|
1077 |
/** |
1078 |
* submit(callable) throws RejectedExecutionException if saturated. |
1079 |
*/ |
1080 |
public void testSaturatedSubmitCallable() { |
1081 |
ThreadPoolExecutor p = |
1082 |
new ThreadPoolExecutor(1, 1, |
1083 |
LONG_DELAY_MS, MILLISECONDS, |
1084 |
new ArrayBlockingQueue<Runnable>(1)); |
1085 |
final CountDownLatch done = new CountDownLatch(1); |
1086 |
try { |
1087 |
Runnable task = new CheckedRunnable() { |
1088 |
public void realRun() throws InterruptedException { |
1089 |
done.await(); |
1090 |
}}; |
1091 |
for (int i = 0; i < 2; ++i) |
1092 |
p.submit(Executors.callable(task)); |
1093 |
for (int i = 0; i < 2; ++i) { |
1094 |
try { |
1095 |
p.execute(task); |
1096 |
shouldThrow(); |
1097 |
} catch (RejectedExecutionException success) {} |
1098 |
assertTrue(p.getTaskCount() <= 2); |
1099 |
} |
1100 |
} finally { |
1101 |
done.countDown(); |
1102 |
joinPool(p); |
1103 |
} |
1104 |
} |
1105 |
|
1106 |
/** |
1107 |
* executor using CallerRunsPolicy runs task if saturated. |
1108 |
*/ |
1109 |
public void testSaturatedExecute2() { |
1110 |
RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
1111 |
final ThreadPoolExecutor p = |
1112 |
new ThreadPoolExecutor(1, 1, |
1113 |
LONG_DELAY_MS, |
1114 |
MILLISECONDS, |
1115 |
new ArrayBlockingQueue<Runnable>(1), |
1116 |
h); |
1117 |
try { |
1118 |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1119 |
for (int i = 0; i < tasks.length; ++i) |
1120 |
tasks[i] = new TrackedNoOpRunnable(); |
1121 |
TrackedLongRunnable mr = new TrackedLongRunnable(); |
1122 |
p.execute(mr); |
1123 |
for (int i = 0; i < tasks.length; ++i) |
1124 |
p.execute(tasks[i]); |
1125 |
for (int i = 1; i < tasks.length; ++i) |
1126 |
assertTrue(tasks[i].done); |
1127 |
try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
1128 |
} finally { |
1129 |
joinPool(p); |
1130 |
} |
1131 |
} |
1132 |
|
1133 |
/** |
1134 |
* executor using DiscardPolicy drops task if saturated. |
1135 |
*/ |
1136 |
public void testSaturatedExecute3() { |
1137 |
RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy(); |
1138 |
final ThreadPoolExecutor p = |
1139 |
new ThreadPoolExecutor(1, 1, |
1140 |
LONG_DELAY_MS, MILLISECONDS, |
1141 |
new ArrayBlockingQueue<Runnable>(1), |
1142 |
h); |
1143 |
try { |
1144 |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1145 |
for (int i = 0; i < tasks.length; ++i) |
1146 |
tasks[i] = new TrackedNoOpRunnable(); |
1147 |
p.execute(new TrackedLongRunnable()); |
1148 |
for (TrackedNoOpRunnable task : tasks) |
1149 |
p.execute(task); |
1150 |
for (TrackedNoOpRunnable task : tasks) |
1151 |
assertFalse(task.done); |
1152 |
try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
1153 |
} finally { |
1154 |
joinPool(p); |
1155 |
} |
1156 |
} |
1157 |
|
1158 |
/** |
1159 |
* executor using DiscardOldestPolicy drops oldest task if saturated. |
1160 |
*/ |
1161 |
public void testSaturatedExecute4() { |
1162 |
RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy(); |
1163 |
final ThreadPoolExecutor p = |
1164 |
new ThreadPoolExecutor(1, 1, |
1165 |
LONG_DELAY_MS, MILLISECONDS, |
1166 |
new ArrayBlockingQueue<Runnable>(1), |
1167 |
h); |
1168 |
try { |
1169 |
p.execute(new TrackedLongRunnable()); |
1170 |
TrackedLongRunnable r2 = new TrackedLongRunnable(); |
1171 |
p.execute(r2); |
1172 |
assertTrue(p.getQueue().contains(r2)); |
1173 |
TrackedNoOpRunnable r3 = new TrackedNoOpRunnable(); |
1174 |
p.execute(r3); |
1175 |
assertFalse(p.getQueue().contains(r2)); |
1176 |
assertTrue(p.getQueue().contains(r3)); |
1177 |
try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
1178 |
} finally { |
1179 |
joinPool(p); |
1180 |
} |
1181 |
} |
1182 |
|
1183 |
/** |
1184 |
* execute throws RejectedExecutionException if shutdown |
1185 |
*/ |
1186 |
public void testRejectedExecutionExceptionOnShutdown() { |
1187 |
ThreadPoolExecutor p = |
1188 |
new ThreadPoolExecutor(1, 1, |
1189 |
LONG_DELAY_MS, MILLISECONDS, |
1190 |
new ArrayBlockingQueue<Runnable>(1)); |
1191 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1192 |
try { |
1193 |
p.execute(new NoOpRunnable()); |
1194 |
shouldThrow(); |
1195 |
} catch (RejectedExecutionException success) {} |
1196 |
|
1197 |
joinPool(p); |
1198 |
} |
1199 |
|
1200 |
/** |
1201 |
* execute using CallerRunsPolicy drops task on shutdown |
1202 |
*/ |
1203 |
public void testCallerRunsOnShutdown() { |
1204 |
RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
1205 |
final ThreadPoolExecutor p = |
1206 |
new ThreadPoolExecutor(1, 1, |
1207 |
LONG_DELAY_MS, MILLISECONDS, |
1208 |
new ArrayBlockingQueue<Runnable>(1), h); |
1209 |
|
1210 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1211 |
try { |
1212 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1213 |
p.execute(r); |
1214 |
assertFalse(r.done); |
1215 |
} finally { |
1216 |
joinPool(p); |
1217 |
} |
1218 |
} |
1219 |
|
1220 |
/** |
1221 |
* execute using DiscardPolicy drops task on shutdown |
1222 |
*/ |
1223 |
public void testDiscardOnShutdown() { |
1224 |
RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy(); |
1225 |
ThreadPoolExecutor p = |
1226 |
new ThreadPoolExecutor(1, 1, |
1227 |
LONG_DELAY_MS, MILLISECONDS, |
1228 |
new ArrayBlockingQueue<Runnable>(1), |
1229 |
h); |
1230 |
|
1231 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1232 |
try { |
1233 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1234 |
p.execute(r); |
1235 |
assertFalse(r.done); |
1236 |
} finally { |
1237 |
joinPool(p); |
1238 |
} |
1239 |
} |
1240 |
|
1241 |
/** |
1242 |
* execute using DiscardOldestPolicy drops task on shutdown |
1243 |
*/ |
1244 |
public void testDiscardOldestOnShutdown() { |
1245 |
RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy(); |
1246 |
ThreadPoolExecutor p = |
1247 |
new ThreadPoolExecutor(1, 1, |
1248 |
LONG_DELAY_MS, MILLISECONDS, |
1249 |
new ArrayBlockingQueue<Runnable>(1), |
1250 |
h); |
1251 |
|
1252 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1253 |
try { |
1254 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1255 |
p.execute(r); |
1256 |
assertFalse(r.done); |
1257 |
} finally { |
1258 |
joinPool(p); |
1259 |
} |
1260 |
} |
1261 |
|
1262 |
/** |
1263 |
* execute(null) throws NPE |
1264 |
*/ |
1265 |
public void testExecuteNull() { |
1266 |
ThreadPoolExecutor p = |
1267 |
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
1268 |
new ArrayBlockingQueue<Runnable>(10)); |
1269 |
try { |
1270 |
p.execute(null); |
1271 |
shouldThrow(); |
1272 |
} catch (NullPointerException success) {} |
1273 |
|
1274 |
joinPool(p); |
1275 |
} |
1276 |
|
1277 |
/** |
1278 |
* setCorePoolSize of negative value throws IllegalArgumentException |
1279 |
*/ |
1280 |
public void testCorePoolSizeIllegalArgumentException() { |
1281 |
ThreadPoolExecutor p = |
1282 |
new ThreadPoolExecutor(1, 2, |
1283 |
LONG_DELAY_MS, MILLISECONDS, |
1284 |
new ArrayBlockingQueue<Runnable>(10)); |
1285 |
try { |
1286 |
p.setCorePoolSize(-1); |
1287 |
shouldThrow(); |
1288 |
} catch (IllegalArgumentException success) { |
1289 |
} finally { |
1290 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1291 |
} |
1292 |
joinPool(p); |
1293 |
} |
1294 |
|
1295 |
/** |
1296 |
* setMaximumPoolSize(int) throws IllegalArgumentException if |
1297 |
* given a value less the core pool size |
1298 |
*/ |
1299 |
public void testMaximumPoolSizeIllegalArgumentException() { |
1300 |
ThreadPoolExecutor p = |
1301 |
new ThreadPoolExecutor(2, 3, |
1302 |
LONG_DELAY_MS, MILLISECONDS, |
1303 |
new ArrayBlockingQueue<Runnable>(10)); |
1304 |
try { |
1305 |
p.setMaximumPoolSize(1); |
1306 |
shouldThrow(); |
1307 |
} catch (IllegalArgumentException success) { |
1308 |
} finally { |
1309 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1310 |
} |
1311 |
joinPool(p); |
1312 |
} |
1313 |
|
1314 |
/** |
1315 |
* setMaximumPoolSize throws IllegalArgumentException |
1316 |
* if given a negative value |
1317 |
*/ |
1318 |
public void testMaximumPoolSizeIllegalArgumentException2() { |
1319 |
ThreadPoolExecutor p = |
1320 |
new ThreadPoolExecutor(2, 3, |
1321 |
LONG_DELAY_MS, MILLISECONDS, |
1322 |
new ArrayBlockingQueue<Runnable>(10)); |
1323 |
try { |
1324 |
p.setMaximumPoolSize(-1); |
1325 |
shouldThrow(); |
1326 |
} catch (IllegalArgumentException success) { |
1327 |
} finally { |
1328 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1329 |
} |
1330 |
joinPool(p); |
1331 |
} |
1332 |
|
1333 |
/** |
1334 |
* setKeepAliveTime throws IllegalArgumentException |
1335 |
* when given a negative value |
1336 |
*/ |
1337 |
public void testKeepAliveTimeIllegalArgumentException() { |
1338 |
ThreadPoolExecutor p = |
1339 |
new ThreadPoolExecutor(2, 3, |
1340 |
LONG_DELAY_MS, MILLISECONDS, |
1341 |
new ArrayBlockingQueue<Runnable>(10)); |
1342 |
try { |
1343 |
p.setKeepAliveTime(-1,MILLISECONDS); |
1344 |
shouldThrow(); |
1345 |
} catch (IllegalArgumentException success) { |
1346 |
} finally { |
1347 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1348 |
} |
1349 |
joinPool(p); |
1350 |
} |
1351 |
|
1352 |
/** |
1353 |
* terminated() is called on termination |
1354 |
*/ |
1355 |
public void testTerminated() { |
1356 |
ExtendedTPE p = new ExtendedTPE(); |
1357 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1358 |
assertTrue(p.terminatedCalled()); |
1359 |
joinPool(p); |
1360 |
} |
1361 |
|
1362 |
/** |
1363 |
* beforeExecute and afterExecute are called when executing task |
1364 |
*/ |
1365 |
public void testBeforeAfter() throws InterruptedException { |
1366 |
ExtendedTPE p = new ExtendedTPE(); |
1367 |
try { |
1368 |
final CountDownLatch done = new CountDownLatch(1); |
1369 |
p.execute(new CheckedRunnable() { |
1370 |
public void realRun() { |
1371 |
done.countDown(); |
1372 |
}}); |
1373 |
await(p.afterCalled); |
1374 |
assertEquals(0, done.getCount()); |
1375 |
assertTrue(p.afterCalled()); |
1376 |
assertTrue(p.beforeCalled()); |
1377 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1378 |
} finally { |
1379 |
joinPool(p); |
1380 |
} |
1381 |
} |
1382 |
|
1383 |
/** |
1384 |
* completed submit of callable returns result |
1385 |
*/ |
1386 |
public void testSubmitCallable() throws Exception { |
1387 |
ExecutorService e = |
1388 |
new ThreadPoolExecutor(2, 2, |
1389 |
LONG_DELAY_MS, MILLISECONDS, |
1390 |
new ArrayBlockingQueue<Runnable>(10)); |
1391 |
try { |
1392 |
Future<String> future = e.submit(new StringTask()); |
1393 |
String result = future.get(); |
1394 |
assertSame(TEST_STRING, result); |
1395 |
} finally { |
1396 |
joinPool(e); |
1397 |
} |
1398 |
} |
1399 |
|
1400 |
/** |
1401 |
* completed submit of runnable returns successfully |
1402 |
*/ |
1403 |
public void testSubmitRunnable() throws Exception { |
1404 |
ExecutorService e = |
1405 |
new ThreadPoolExecutor(2, 2, |
1406 |
LONG_DELAY_MS, MILLISECONDS, |
1407 |
new ArrayBlockingQueue<Runnable>(10)); |
1408 |
try { |
1409 |
Future<?> future = e.submit(new NoOpRunnable()); |
1410 |
future.get(); |
1411 |
assertTrue(future.isDone()); |
1412 |
} finally { |
1413 |
joinPool(e); |
1414 |
} |
1415 |
} |
1416 |
|
1417 |
/** |
1418 |
* completed submit of (runnable, result) returns result |
1419 |
*/ |
1420 |
public void testSubmitRunnable2() throws Exception { |
1421 |
ExecutorService e = |
1422 |
new ThreadPoolExecutor(2, 2, |
1423 |
LONG_DELAY_MS, MILLISECONDS, |
1424 |
new ArrayBlockingQueue<Runnable>(10)); |
1425 |
try { |
1426 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
1427 |
String result = future.get(); |
1428 |
assertSame(TEST_STRING, result); |
1429 |
} finally { |
1430 |
joinPool(e); |
1431 |
} |
1432 |
} |
1433 |
|
1434 |
/** |
1435 |
* invokeAny(null) throws NPE |
1436 |
*/ |
1437 |
public void testInvokeAny1() throws Exception { |
1438 |
ExecutorService e = |
1439 |
new ThreadPoolExecutor(2, 2, |
1440 |
LONG_DELAY_MS, MILLISECONDS, |
1441 |
new ArrayBlockingQueue<Runnable>(10)); |
1442 |
try { |
1443 |
e.invokeAny(null); |
1444 |
shouldThrow(); |
1445 |
} catch (NullPointerException success) { |
1446 |
} finally { |
1447 |
joinPool(e); |
1448 |
} |
1449 |
} |
1450 |
|
1451 |
/** |
1452 |
* invokeAny(empty collection) throws IAE |
1453 |
*/ |
1454 |
public void testInvokeAny2() throws Exception { |
1455 |
ExecutorService e = |
1456 |
new ThreadPoolExecutor(2, 2, |
1457 |
LONG_DELAY_MS, MILLISECONDS, |
1458 |
new ArrayBlockingQueue<Runnable>(10)); |
1459 |
try { |
1460 |
e.invokeAny(new ArrayList<Callable<String>>()); |
1461 |
shouldThrow(); |
1462 |
} catch (IllegalArgumentException success) { |
1463 |
} finally { |
1464 |
joinPool(e); |
1465 |
} |
1466 |
} |
1467 |
|
1468 |
/** |
1469 |
* invokeAny(c) throws NPE if c has null elements |
1470 |
*/ |
1471 |
public void testInvokeAny3() throws Exception { |
1472 |
final CountDownLatch latch = new CountDownLatch(1); |
1473 |
final ExecutorService e = |
1474 |
new ThreadPoolExecutor(2, 2, |
1475 |
LONG_DELAY_MS, MILLISECONDS, |
1476 |
new ArrayBlockingQueue<Runnable>(10)); |
1477 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1478 |
l.add(latchAwaitingStringTask(latch)); |
1479 |
l.add(null); |
1480 |
try { |
1481 |
e.invokeAny(l); |
1482 |
shouldThrow(); |
1483 |
} catch (NullPointerException success) { |
1484 |
} finally { |
1485 |
latch.countDown(); |
1486 |
joinPool(e); |
1487 |
} |
1488 |
} |
1489 |
|
1490 |
/** |
1491 |
* invokeAny(c) throws ExecutionException if no task completes |
1492 |
*/ |
1493 |
public void testInvokeAny4() throws Exception { |
1494 |
ExecutorService e = |
1495 |
new ThreadPoolExecutor(2, 2, |
1496 |
LONG_DELAY_MS, MILLISECONDS, |
1497 |
new ArrayBlockingQueue<Runnable>(10)); |
1498 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1499 |
l.add(new NPETask()); |
1500 |
try { |
1501 |
e.invokeAny(l); |
1502 |
shouldThrow(); |
1503 |
} catch (ExecutionException success) { |
1504 |
assertTrue(success.getCause() instanceof NullPointerException); |
1505 |
} finally { |
1506 |
joinPool(e); |
1507 |
} |
1508 |
} |
1509 |
|
1510 |
/** |
1511 |
* invokeAny(c) returns result of some task |
1512 |
*/ |
1513 |
public void testInvokeAny5() throws Exception { |
1514 |
ExecutorService e = |
1515 |
new ThreadPoolExecutor(2, 2, |
1516 |
LONG_DELAY_MS, MILLISECONDS, |
1517 |
new ArrayBlockingQueue<Runnable>(10)); |
1518 |
try { |
1519 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1520 |
l.add(new StringTask()); |
1521 |
l.add(new StringTask()); |
1522 |
String result = e.invokeAny(l); |
1523 |
assertSame(TEST_STRING, result); |
1524 |
} finally { |
1525 |
joinPool(e); |
1526 |
} |
1527 |
} |
1528 |
|
1529 |
/** |
1530 |
* invokeAll(null) throws NPE |
1531 |
*/ |
1532 |
public void testInvokeAll1() throws Exception { |
1533 |
ExecutorService e = |
1534 |
new ThreadPoolExecutor(2, 2, |
1535 |
LONG_DELAY_MS, MILLISECONDS, |
1536 |
new ArrayBlockingQueue<Runnable>(10)); |
1537 |
try { |
1538 |
e.invokeAll(null); |
1539 |
shouldThrow(); |
1540 |
} catch (NullPointerException success) { |
1541 |
} finally { |
1542 |
joinPool(e); |
1543 |
} |
1544 |
} |
1545 |
|
1546 |
/** |
1547 |
* invokeAll(empty collection) returns empty collection |
1548 |
*/ |
1549 |
public void testInvokeAll2() throws InterruptedException { |
1550 |
ExecutorService e = |
1551 |
new ThreadPoolExecutor(2, 2, |
1552 |
LONG_DELAY_MS, MILLISECONDS, |
1553 |
new ArrayBlockingQueue<Runnable>(10)); |
1554 |
try { |
1555 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
1556 |
assertTrue(r.isEmpty()); |
1557 |
} finally { |
1558 |
joinPool(e); |
1559 |
} |
1560 |
} |
1561 |
|
1562 |
/** |
1563 |
* invokeAll(c) throws NPE if c has null elements |
1564 |
*/ |
1565 |
public void testInvokeAll3() throws Exception { |
1566 |
ExecutorService e = |
1567 |
new ThreadPoolExecutor(2, 2, |
1568 |
LONG_DELAY_MS, MILLISECONDS, |
1569 |
new ArrayBlockingQueue<Runnable>(10)); |
1570 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1571 |
l.add(new StringTask()); |
1572 |
l.add(null); |
1573 |
try { |
1574 |
e.invokeAll(l); |
1575 |
shouldThrow(); |
1576 |
} catch (NullPointerException success) { |
1577 |
} finally { |
1578 |
joinPool(e); |
1579 |
} |
1580 |
} |
1581 |
|
1582 |
/** |
1583 |
* get of element of invokeAll(c) throws exception on failed task |
1584 |
*/ |
1585 |
public void testInvokeAll4() throws Exception { |
1586 |
ExecutorService e = |
1587 |
new ThreadPoolExecutor(2, 2, |
1588 |
LONG_DELAY_MS, MILLISECONDS, |
1589 |
new ArrayBlockingQueue<Runnable>(10)); |
1590 |
try { |
1591 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1592 |
l.add(new NPETask()); |
1593 |
List<Future<String>> futures = e.invokeAll(l); |
1594 |
assertEquals(1, futures.size()); |
1595 |
try { |
1596 |
futures.get(0).get(); |
1597 |
shouldThrow(); |
1598 |
} catch (ExecutionException success) { |
1599 |
assertTrue(success.getCause() instanceof NullPointerException); |
1600 |
} |
1601 |
} finally { |
1602 |
joinPool(e); |
1603 |
} |
1604 |
} |
1605 |
|
1606 |
/** |
1607 |
* invokeAll(c) returns results of all completed tasks |
1608 |
*/ |
1609 |
public void testInvokeAll5() throws Exception { |
1610 |
ExecutorService e = |
1611 |
new ThreadPoolExecutor(2, 2, |
1612 |
LONG_DELAY_MS, MILLISECONDS, |
1613 |
new ArrayBlockingQueue<Runnable>(10)); |
1614 |
try { |
1615 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1616 |
l.add(new StringTask()); |
1617 |
l.add(new StringTask()); |
1618 |
List<Future<String>> futures = e.invokeAll(l); |
1619 |
assertEquals(2, futures.size()); |
1620 |
for (Future<String> future : futures) |
1621 |
assertSame(TEST_STRING, future.get()); |
1622 |
} finally { |
1623 |
joinPool(e); |
1624 |
} |
1625 |
} |
1626 |
|
1627 |
/** |
1628 |
* timed invokeAny(null) throws NPE |
1629 |
*/ |
1630 |
public void testTimedInvokeAny1() throws Exception { |
1631 |
ExecutorService e = |
1632 |
new ThreadPoolExecutor(2, 2, |
1633 |
LONG_DELAY_MS, MILLISECONDS, |
1634 |
new ArrayBlockingQueue<Runnable>(10)); |
1635 |
try { |
1636 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1637 |
shouldThrow(); |
1638 |
} catch (NullPointerException success) { |
1639 |
} finally { |
1640 |
joinPool(e); |
1641 |
} |
1642 |
} |
1643 |
|
1644 |
/** |
1645 |
* timed invokeAny(,,null) throws NPE |
1646 |
*/ |
1647 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1648 |
ExecutorService e = |
1649 |
new ThreadPoolExecutor(2, 2, |
1650 |
LONG_DELAY_MS, MILLISECONDS, |
1651 |
new ArrayBlockingQueue<Runnable>(10)); |
1652 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1653 |
l.add(new StringTask()); |
1654 |
try { |
1655 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1656 |
shouldThrow(); |
1657 |
} catch (NullPointerException success) { |
1658 |
} finally { |
1659 |
joinPool(e); |
1660 |
} |
1661 |
} |
1662 |
|
1663 |
/** |
1664 |
* timed invokeAny(empty collection) throws IAE |
1665 |
*/ |
1666 |
public void testTimedInvokeAny2() throws Exception { |
1667 |
ExecutorService e = |
1668 |
new ThreadPoolExecutor(2, 2, |
1669 |
LONG_DELAY_MS, MILLISECONDS, |
1670 |
new ArrayBlockingQueue<Runnable>(10)); |
1671 |
try { |
1672 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1673 |
shouldThrow(); |
1674 |
} catch (IllegalArgumentException success) { |
1675 |
} finally { |
1676 |
joinPool(e); |
1677 |
} |
1678 |
} |
1679 |
|
1680 |
/** |
1681 |
* timed invokeAny(c) throws NPE if c has null elements |
1682 |
*/ |
1683 |
public void testTimedInvokeAny3() throws Exception { |
1684 |
final CountDownLatch latch = new CountDownLatch(1); |
1685 |
final ExecutorService e = |
1686 |
new ThreadPoolExecutor(2, 2, |
1687 |
LONG_DELAY_MS, MILLISECONDS, |
1688 |
new ArrayBlockingQueue<Runnable>(10)); |
1689 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1690 |
l.add(latchAwaitingStringTask(latch)); |
1691 |
l.add(null); |
1692 |
try { |
1693 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1694 |
shouldThrow(); |
1695 |
} catch (NullPointerException success) { |
1696 |
} finally { |
1697 |
latch.countDown(); |
1698 |
joinPool(e); |
1699 |
} |
1700 |
} |
1701 |
|
1702 |
/** |
1703 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1704 |
*/ |
1705 |
public void testTimedInvokeAny4() throws Exception { |
1706 |
ExecutorService e = |
1707 |
new ThreadPoolExecutor(2, 2, |
1708 |
LONG_DELAY_MS, MILLISECONDS, |
1709 |
new ArrayBlockingQueue<Runnable>(10)); |
1710 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1711 |
l.add(new NPETask()); |
1712 |
try { |
1713 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1714 |
shouldThrow(); |
1715 |
} catch (ExecutionException success) { |
1716 |
assertTrue(success.getCause() instanceof NullPointerException); |
1717 |
} finally { |
1718 |
joinPool(e); |
1719 |
} |
1720 |
} |
1721 |
|
1722 |
/** |
1723 |
* timed invokeAny(c) returns result of some task |
1724 |
*/ |
1725 |
public void testTimedInvokeAny5() throws Exception { |
1726 |
ExecutorService e = |
1727 |
new ThreadPoolExecutor(2, 2, |
1728 |
LONG_DELAY_MS, MILLISECONDS, |
1729 |
new ArrayBlockingQueue<Runnable>(10)); |
1730 |
try { |
1731 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1732 |
l.add(new StringTask()); |
1733 |
l.add(new StringTask()); |
1734 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1735 |
assertSame(TEST_STRING, result); |
1736 |
} finally { |
1737 |
joinPool(e); |
1738 |
} |
1739 |
} |
1740 |
|
1741 |
/** |
1742 |
* timed invokeAll(null) throws NPE |
1743 |
*/ |
1744 |
public void testTimedInvokeAll1() throws Exception { |
1745 |
ExecutorService e = |
1746 |
new ThreadPoolExecutor(2, 2, |
1747 |
LONG_DELAY_MS, MILLISECONDS, |
1748 |
new ArrayBlockingQueue<Runnable>(10)); |
1749 |
try { |
1750 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1751 |
shouldThrow(); |
1752 |
} catch (NullPointerException success) { |
1753 |
} finally { |
1754 |
joinPool(e); |
1755 |
} |
1756 |
} |
1757 |
|
1758 |
/** |
1759 |
* timed invokeAll(,,null) throws NPE |
1760 |
*/ |
1761 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1762 |
ExecutorService e = |
1763 |
new ThreadPoolExecutor(2, 2, |
1764 |
LONG_DELAY_MS, MILLISECONDS, |
1765 |
new ArrayBlockingQueue<Runnable>(10)); |
1766 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1767 |
l.add(new StringTask()); |
1768 |
try { |
1769 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1770 |
shouldThrow(); |
1771 |
} catch (NullPointerException success) { |
1772 |
} finally { |
1773 |
joinPool(e); |
1774 |
} |
1775 |
} |
1776 |
|
1777 |
/** |
1778 |
* timed invokeAll(empty collection) returns empty collection |
1779 |
*/ |
1780 |
public void testTimedInvokeAll2() throws InterruptedException { |
1781 |
ExecutorService e = |
1782 |
new ThreadPoolExecutor(2, 2, |
1783 |
LONG_DELAY_MS, MILLISECONDS, |
1784 |
new ArrayBlockingQueue<Runnable>(10)); |
1785 |
try { |
1786 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1787 |
assertTrue(r.isEmpty()); |
1788 |
} finally { |
1789 |
joinPool(e); |
1790 |
} |
1791 |
} |
1792 |
|
1793 |
/** |
1794 |
* timed invokeAll(c) throws NPE if c has null elements |
1795 |
*/ |
1796 |
public void testTimedInvokeAll3() throws Exception { |
1797 |
ExecutorService e = |
1798 |
new ThreadPoolExecutor(2, 2, |
1799 |
LONG_DELAY_MS, MILLISECONDS, |
1800 |
new ArrayBlockingQueue<Runnable>(10)); |
1801 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1802 |
l.add(new StringTask()); |
1803 |
l.add(null); |
1804 |
try { |
1805 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1806 |
shouldThrow(); |
1807 |
} catch (NullPointerException success) { |
1808 |
} finally { |
1809 |
joinPool(e); |
1810 |
} |
1811 |
} |
1812 |
|
1813 |
/** |
1814 |
* get of element of invokeAll(c) throws exception on failed task |
1815 |
*/ |
1816 |
public void testTimedInvokeAll4() throws Exception { |
1817 |
ExecutorService e = |
1818 |
new ThreadPoolExecutor(2, 2, |
1819 |
LONG_DELAY_MS, MILLISECONDS, |
1820 |
new ArrayBlockingQueue<Runnable>(10)); |
1821 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1822 |
l.add(new NPETask()); |
1823 |
List<Future<String>> futures = |
1824 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1825 |
assertEquals(1, futures.size()); |
1826 |
try { |
1827 |
futures.get(0).get(); |
1828 |
shouldThrow(); |
1829 |
} catch (ExecutionException success) { |
1830 |
assertTrue(success.getCause() instanceof NullPointerException); |
1831 |
} finally { |
1832 |
joinPool(e); |
1833 |
} |
1834 |
} |
1835 |
|
1836 |
/** |
1837 |
* timed invokeAll(c) returns results of all completed tasks |
1838 |
*/ |
1839 |
public void testTimedInvokeAll5() throws Exception { |
1840 |
ExecutorService e = |
1841 |
new ThreadPoolExecutor(2, 2, |
1842 |
LONG_DELAY_MS, MILLISECONDS, |
1843 |
new ArrayBlockingQueue<Runnable>(10)); |
1844 |
try { |
1845 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1846 |
l.add(new StringTask()); |
1847 |
l.add(new StringTask()); |
1848 |
List<Future<String>> futures = |
1849 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1850 |
assertEquals(2, futures.size()); |
1851 |
for (Future<String> future : futures) |
1852 |
assertSame(TEST_STRING, future.get()); |
1853 |
} finally { |
1854 |
joinPool(e); |
1855 |
} |
1856 |
} |
1857 |
|
1858 |
/** |
1859 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1860 |
*/ |
1861 |
public void testTimedInvokeAll6() throws Exception { |
1862 |
ExecutorService e = |
1863 |
new ThreadPoolExecutor(2, 2, |
1864 |
LONG_DELAY_MS, MILLISECONDS, |
1865 |
new ArrayBlockingQueue<Runnable>(10)); |
1866 |
try { |
1867 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1868 |
l.add(new StringTask()); |
1869 |
l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING)); |
1870 |
l.add(new StringTask()); |
1871 |
List<Future<String>> futures = |
1872 |
e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS); |
1873 |
assertEquals(l.size(), futures.size()); |
1874 |
for (Future future : futures) |
1875 |
assertTrue(future.isDone()); |
1876 |
assertFalse(futures.get(0).isCancelled()); |
1877 |
assertTrue(futures.get(1).isCancelled()); |
1878 |
} finally { |
1879 |
joinPool(e); |
1880 |
} |
1881 |
} |
1882 |
|
1883 |
/** |
1884 |
* Execution continues if there is at least one thread even if |
1885 |
* thread factory fails to create more |
1886 |
*/ |
1887 |
public void testFailingThreadFactory() throws InterruptedException { |
1888 |
final ExecutorService e = |
1889 |
new ThreadPoolExecutor(100, 100, |
1890 |
LONG_DELAY_MS, MILLISECONDS, |
1891 |
new LinkedBlockingQueue<Runnable>(), |
1892 |
new FailingThreadFactory()); |
1893 |
try { |
1894 |
final int TASKS = 100; |
1895 |
final CountDownLatch done = new CountDownLatch(TASKS); |
1896 |
for (int k = 0; k < TASKS; ++k) |
1897 |
e.execute(new CheckedRunnable() { |
1898 |
public void realRun() { |
1899 |
done.countDown(); |
1900 |
}}); |
1901 |
assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
1902 |
} finally { |
1903 |
joinPool(e); |
1904 |
} |
1905 |
} |
1906 |
|
1907 |
/** |
1908 |
* allowsCoreThreadTimeOut is by default false. |
1909 |
*/ |
1910 |
public void testAllowsCoreThreadTimeOut() { |
1911 |
final ThreadPoolExecutor p = |
1912 |
new ThreadPoolExecutor(2, 2, |
1913 |
1000, MILLISECONDS, |
1914 |
new ArrayBlockingQueue<Runnable>(10)); |
1915 |
assertFalse(p.allowsCoreThreadTimeOut()); |
1916 |
joinPool(p); |
1917 |
} |
1918 |
|
1919 |
/** |
1920 |
* allowCoreThreadTimeOut(true) causes idle threads to time out |
1921 |
*/ |
1922 |
public void testAllowCoreThreadTimeOut_true() throws Exception { |
1923 |
long coreThreadTimeOut = SHORT_DELAY_MS; |
1924 |
final ThreadPoolExecutor p = |
1925 |
new ThreadPoolExecutor(2, 10, |
1926 |
coreThreadTimeOut, MILLISECONDS, |
1927 |
new ArrayBlockingQueue<Runnable>(10)); |
1928 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1929 |
try { |
1930 |
p.allowCoreThreadTimeOut(true); |
1931 |
p.execute(new CheckedRunnable() { |
1932 |
public void realRun() { |
1933 |
threadStarted.countDown(); |
1934 |
assertEquals(1, p.getPoolSize()); |
1935 |
}}); |
1936 |
await(threadStarted); |
1937 |
delay(coreThreadTimeOut); |
1938 |
long startTime = System.nanoTime(); |
1939 |
while (p.getPoolSize() > 0 |
1940 |
&& millisElapsedSince(startTime) < LONG_DELAY_MS) |
1941 |
Thread.yield(); |
1942 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1943 |
assertEquals(0, p.getPoolSize()); |
1944 |
} finally { |
1945 |
joinPool(p); |
1946 |
} |
1947 |
} |
1948 |
|
1949 |
/** |
1950 |
* allowCoreThreadTimeOut(false) causes idle threads not to time out |
1951 |
*/ |
1952 |
public void testAllowCoreThreadTimeOut_false() throws Exception { |
1953 |
long coreThreadTimeOut = SHORT_DELAY_MS; |
1954 |
final ThreadPoolExecutor p = |
1955 |
new ThreadPoolExecutor(2, 10, |
1956 |
coreThreadTimeOut, MILLISECONDS, |
1957 |
new ArrayBlockingQueue<Runnable>(10)); |
1958 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1959 |
try { |
1960 |
p.allowCoreThreadTimeOut(false); |
1961 |
p.execute(new CheckedRunnable() { |
1962 |
public void realRun() throws InterruptedException { |
1963 |
threadStarted.countDown(); |
1964 |
assertTrue(p.getPoolSize() >= 1); |
1965 |
}}); |
1966 |
delay(2 * coreThreadTimeOut); |
1967 |
assertTrue(p.getPoolSize() >= 1); |
1968 |
} finally { |
1969 |
joinPool(p); |
1970 |
} |
1971 |
} |
1972 |
|
1973 |
/** |
1974 |
* execute allows the same task to be submitted multiple times, even |
1975 |
* if rejected |
1976 |
*/ |
1977 |
public void testRejectedRecycledTask() throws InterruptedException { |
1978 |
final int nTasks = 1000; |
1979 |
final CountDownLatch done = new CountDownLatch(nTasks); |
1980 |
final Runnable recycledTask = new Runnable() { |
1981 |
public void run() { |
1982 |
done.countDown(); |
1983 |
}}; |
1984 |
final ThreadPoolExecutor p = |
1985 |
new ThreadPoolExecutor(1, 30, 60, TimeUnit.SECONDS, |
1986 |
new ArrayBlockingQueue(30)); |
1987 |
try { |
1988 |
for (int i = 0; i < nTasks; ++i) { |
1989 |
for (;;) { |
1990 |
try { |
1991 |
p.execute(recycledTask); |
1992 |
break; |
1993 |
} |
1994 |
catch (RejectedExecutionException ignore) {} |
1995 |
} |
1996 |
} |
1997 |
// enough time to run all tasks |
1998 |
assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS)); |
1999 |
} finally { |
2000 |
joinPool(p); |
2001 |
} |
2002 |
} |
2003 |
|
2004 |
} |