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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.SECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.HashSet; |
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import java.util.List; |
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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.RejectedExecutionException; |
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import java.util.concurrent.ScheduledFuture; |
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import java.util.concurrent.ScheduledThreadPoolExecutor; |
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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 ScheduledExecutorTest 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(ScheduledExecutorTest.class); |
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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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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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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(SMALL_DELAY_MS, MILLISECONDS)); |
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} |
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} |
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|
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/** |
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* delayed schedule of callable successfully executes after delay |
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*/ |
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public void testSchedule1() throws Exception { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final long startTime = System.nanoTime(); |
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final CountDownLatch done = new CountDownLatch(1); |
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Callable task = new CheckedCallable<Boolean>() { |
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public Boolean realCall() { |
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done.countDown(); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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return Boolean.TRUE; |
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}}; |
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Future f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
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assertSame(Boolean.TRUE, f.get()); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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assertTrue(done.await(0L, MILLISECONDS)); |
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} |
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} |
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|
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/** |
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* delayed schedule of runnable successfully executes after delay |
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*/ |
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public void testSchedule3() throws Exception { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final long startTime = System.nanoTime(); |
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final CountDownLatch done = new CountDownLatch(1); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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Future f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
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await(done); |
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assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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} |
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} |
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|
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/** |
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* scheduleAtFixedRate executes runnable after given initial delay |
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*/ |
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public void testSchedule4() throws Exception { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final long startTime = System.nanoTime(); |
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final CountDownLatch done = new CountDownLatch(1); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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ScheduledFuture f = |
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p.scheduleAtFixedRate(task, timeoutMillis(), |
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LONG_DELAY_MS, MILLISECONDS); |
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await(done); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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f.cancel(true); |
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} |
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} |
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|
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/** |
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* scheduleWithFixedDelay executes runnable after given initial delay |
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*/ |
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public void testSchedule5() throws Exception { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final long startTime = System.nanoTime(); |
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final CountDownLatch done = new CountDownLatch(1); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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ScheduledFuture f = |
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p.scheduleWithFixedDelay(task, timeoutMillis(), |
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LONG_DELAY_MS, MILLISECONDS); |
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await(done); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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f.cancel(true); |
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} |
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} |
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|
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static class RunnableCounter implements Runnable { |
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AtomicInteger count = new AtomicInteger(0); |
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public void run() { count.getAndIncrement(); } |
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} |
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|
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/** |
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* scheduleAtFixedRate executes series of tasks at given rate |
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*/ |
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public void testFixedRateSequence() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
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long startTime = System.nanoTime(); |
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int cycles = 10; |
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final CountDownLatch done = new CountDownLatch(cycles); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { done.countDown(); }}; |
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ScheduledFuture h = |
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p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS); |
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done.await(); |
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h.cancel(true); |
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double normalizedTime = |
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(double) millisElapsedSince(startTime) / delay; |
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if (normalizedTime >= cycles - 1 && |
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normalizedTime <= cycles) |
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return; |
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} |
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throw new AssertionError("unexpected execution rate"); |
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} |
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} |
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|
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/** |
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* scheduleWithFixedDelay executes series of tasks with given period |
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*/ |
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public void testFixedDelaySequence() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
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long startTime = System.nanoTime(); |
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int cycles = 10; |
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final CountDownLatch done = new CountDownLatch(cycles); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { done.countDown(); }}; |
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ScheduledFuture h = |
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p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS); |
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done.await(); |
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h.cancel(true); |
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double normalizedTime = |
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(double) millisElapsedSince(startTime) / delay; |
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if (normalizedTime >= cycles - 1 && |
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normalizedTime <= cycles) |
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return; |
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} |
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throw new AssertionError("unexpected execution rate"); |
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} |
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} |
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|
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/** |
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* execute(null) throws NPE |
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*/ |
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public void testExecuteNull() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.execute(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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* schedule(null) throws NPE |
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*/ |
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public void testScheduleNull() throws InterruptedException { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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TrackedCallable callable = null; |
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Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS); |
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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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* execute throws RejectedExecutionException if shutdown |
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*/ |
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public void testSchedule1_RejectedExecutionException() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.shutdown(); |
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p.schedule(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (RejectedExecutionException success) { |
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} catch (SecurityException ok) {} |
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} |
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} |
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|
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/** |
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* schedule throws RejectedExecutionException if shutdown |
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*/ |
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public void testSchedule2_RejectedExecutionException() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.shutdown(); |
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p.schedule(new NoOpCallable(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (RejectedExecutionException success) { |
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} catch (SecurityException ok) {} |
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} |
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} |
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|
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/** |
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* schedule callable throws RejectedExecutionException if shutdown |
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*/ |
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public void testSchedule3_RejectedExecutionException() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.shutdown(); |
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p.schedule(new NoOpCallable(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (RejectedExecutionException success) { |
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} catch (SecurityException ok) {} |
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} |
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} |
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|
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/** |
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* scheduleAtFixedRate throws RejectedExecutionException if shutdown |
274 |
*/ |
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public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.shutdown(); |
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p.scheduleAtFixedRate(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
282 |
shouldThrow(); |
283 |
} catch (RejectedExecutionException success) { |
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} catch (SecurityException ok) {} |
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} |
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} |
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|
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/** |
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* scheduleWithFixedDelay throws RejectedExecutionException if shutdown |
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*/ |
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public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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try { |
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p.shutdown(); |
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p.scheduleWithFixedDelay(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (RejectedExecutionException success) { |
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} catch (SecurityException ok) {} |
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} |
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} |
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|
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/** |
305 |
* getActiveCount increases but doesn't overestimate, when a |
306 |
* thread becomes active |
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*/ |
308 |
public void testGetActiveCount() throws InterruptedException { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
310 |
try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
312 |
final CountDownLatch done = new CountDownLatch(1); |
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assertEquals(0, p.getActiveCount()); |
314 |
p.execute(new CheckedRunnable() { |
315 |
public void realRun() throws InterruptedException { |
316 |
threadStarted.countDown(); |
317 |
assertEquals(1, p.getActiveCount()); |
318 |
done.await(); |
319 |
}}); |
320 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
321 |
assertEquals(1, p.getActiveCount()); |
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done.countDown(); |
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} |
324 |
} |
325 |
|
326 |
/** |
327 |
* getCompletedTaskCount increases, but doesn't overestimate, |
328 |
* when tasks complete |
329 |
*/ |
330 |
public void testGetCompletedTaskCount() throws InterruptedException { |
331 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
332 |
try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
334 |
final CountDownLatch threadProceed = new CountDownLatch(1); |
335 |
final CountDownLatch threadDone = new CountDownLatch(1); |
336 |
assertEquals(0, p.getCompletedTaskCount()); |
337 |
p.execute(new CheckedRunnable() { |
338 |
public void realRun() throws InterruptedException { |
339 |
threadStarted.countDown(); |
340 |
assertEquals(0, p.getCompletedTaskCount()); |
341 |
threadProceed.await(); |
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threadDone.countDown(); |
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}}); |
344 |
await(threadStarted); |
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assertEquals(0, p.getCompletedTaskCount()); |
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threadProceed.countDown(); |
347 |
threadDone.await(); |
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long startTime = System.nanoTime(); |
349 |
while (p.getCompletedTaskCount() != 1) { |
350 |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
351 |
fail("timed out"); |
352 |
Thread.yield(); |
353 |
} |
354 |
} |
355 |
} |
356 |
|
357 |
/** |
358 |
* getCorePoolSize returns size given in constructor if not otherwise set |
359 |
*/ |
360 |
public void testGetCorePoolSize() throws InterruptedException { |
361 |
ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
362 |
try (PoolCleaner cleaner = cleaner(p)) { |
363 |
assertEquals(1, p.getCorePoolSize()); |
364 |
} |
365 |
} |
366 |
|
367 |
/** |
368 |
* getLargestPoolSize increases, but doesn't overestimate, when |
369 |
* multiple threads active |
370 |
*/ |
371 |
public void testGetLargestPoolSize() throws InterruptedException { |
372 |
final int THREADS = 3; |
373 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS); |
374 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
375 |
final CountDownLatch done = new CountDownLatch(1); |
376 |
try (PoolCleaner cleaner = cleaner(p)) { |
377 |
assertEquals(0, p.getLargestPoolSize()); |
378 |
for (int i = 0; i < THREADS; i++) |
379 |
p.execute(new CheckedRunnable() { |
380 |
public void realRun() throws InterruptedException { |
381 |
threadsStarted.countDown(); |
382 |
done.await(); |
383 |
assertEquals(THREADS, p.getLargestPoolSize()); |
384 |
}}); |
385 |
assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
386 |
assertEquals(THREADS, p.getLargestPoolSize()); |
387 |
done.countDown(); |
388 |
} |
389 |
assertEquals(THREADS, p.getLargestPoolSize()); |
390 |
} |
391 |
|
392 |
/** |
393 |
* getPoolSize increases, but doesn't overestimate, when threads |
394 |
* become active |
395 |
*/ |
396 |
public void testGetPoolSize() throws InterruptedException { |
397 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
398 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
399 |
final CountDownLatch done = new CountDownLatch(1); |
400 |
try (PoolCleaner cleaner = cleaner(p)) { |
401 |
assertEquals(0, p.getPoolSize()); |
402 |
p.execute(new CheckedRunnable() { |
403 |
public void realRun() throws InterruptedException { |
404 |
threadStarted.countDown(); |
405 |
assertEquals(1, p.getPoolSize()); |
406 |
done.await(); |
407 |
}}); |
408 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
409 |
assertEquals(1, p.getPoolSize()); |
410 |
done.countDown(); |
411 |
} |
412 |
} |
413 |
|
414 |
/** |
415 |
* getTaskCount increases, but doesn't overestimate, when tasks |
416 |
* submitted |
417 |
*/ |
418 |
public void testGetTaskCount() throws InterruptedException { |
419 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
420 |
try (PoolCleaner cleaner = cleaner(p)) { |
421 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
422 |
final CountDownLatch done = new CountDownLatch(1); |
423 |
final int TASKS = 5; |
424 |
assertEquals(0, p.getTaskCount()); |
425 |
for (int i = 0; i < TASKS; i++) |
426 |
p.execute(new CheckedRunnable() { |
427 |
public void realRun() throws InterruptedException { |
428 |
threadStarted.countDown(); |
429 |
done.await(); |
430 |
}}); |
431 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
432 |
assertEquals(TASKS, p.getTaskCount()); |
433 |
done.countDown(); |
434 |
} |
435 |
} |
436 |
|
437 |
/** |
438 |
* getThreadFactory returns factory in constructor if not set |
439 |
*/ |
440 |
public void testGetThreadFactory() throws InterruptedException { |
441 |
final ThreadFactory threadFactory = new SimpleThreadFactory(); |
442 |
final ScheduledThreadPoolExecutor p = |
443 |
new ScheduledThreadPoolExecutor(1, threadFactory); |
444 |
try (PoolCleaner cleaner = cleaner(p)) { |
445 |
assertSame(threadFactory, p.getThreadFactory()); |
446 |
} |
447 |
} |
448 |
|
449 |
/** |
450 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
451 |
*/ |
452 |
public void testSetThreadFactory() throws InterruptedException { |
453 |
ThreadFactory threadFactory = new SimpleThreadFactory(); |
454 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
455 |
try (PoolCleaner cleaner = cleaner(p)) { |
456 |
p.setThreadFactory(threadFactory); |
457 |
assertSame(threadFactory, p.getThreadFactory()); |
458 |
} |
459 |
} |
460 |
|
461 |
/** |
462 |
* setThreadFactory(null) throws NPE |
463 |
*/ |
464 |
public void testSetThreadFactoryNull() throws InterruptedException { |
465 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
466 |
try (PoolCleaner cleaner = cleaner(p)) { |
467 |
try { |
468 |
p.setThreadFactory(null); |
469 |
shouldThrow(); |
470 |
} catch (NullPointerException success) {} |
471 |
} |
472 |
} |
473 |
|
474 |
/** |
475 |
* isShutdown is false before shutdown, true after |
476 |
*/ |
477 |
public void testIsShutdown() { |
478 |
|
479 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
480 |
try { |
481 |
assertFalse(p.isShutdown()); |
482 |
} |
483 |
finally { |
484 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
485 |
} |
486 |
assertTrue(p.isShutdown()); |
487 |
} |
488 |
|
489 |
/** |
490 |
* isTerminated is false before termination, true after |
491 |
*/ |
492 |
public void testIsTerminated() throws InterruptedException { |
493 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
494 |
try (PoolCleaner cleaner = cleaner(p)) { |
495 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
496 |
final CountDownLatch done = new CountDownLatch(1); |
497 |
assertFalse(p.isTerminated()); |
498 |
p.execute(new CheckedRunnable() { |
499 |
public void realRun() throws InterruptedException { |
500 |
assertFalse(p.isTerminated()); |
501 |
threadStarted.countDown(); |
502 |
done.await(); |
503 |
}}); |
504 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
505 |
assertFalse(p.isTerminating()); |
506 |
done.countDown(); |
507 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
508 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
509 |
assertTrue(p.isTerminated()); |
510 |
} |
511 |
} |
512 |
|
513 |
/** |
514 |
* isTerminating is not true when running or when terminated |
515 |
*/ |
516 |
public void testIsTerminating() throws InterruptedException { |
517 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
518 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
519 |
final CountDownLatch done = new CountDownLatch(1); |
520 |
try (PoolCleaner cleaner = cleaner(p)) { |
521 |
assertFalse(p.isTerminating()); |
522 |
p.execute(new CheckedRunnable() { |
523 |
public void realRun() throws InterruptedException { |
524 |
assertFalse(p.isTerminating()); |
525 |
threadStarted.countDown(); |
526 |
done.await(); |
527 |
}}); |
528 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
529 |
assertFalse(p.isTerminating()); |
530 |
done.countDown(); |
531 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
532 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
533 |
assertTrue(p.isTerminated()); |
534 |
assertFalse(p.isTerminating()); |
535 |
} |
536 |
} |
537 |
|
538 |
/** |
539 |
* getQueue returns the work queue, which contains queued tasks |
540 |
*/ |
541 |
public void testGetQueue() throws InterruptedException { |
542 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
543 |
try (PoolCleaner cleaner = cleaner(p)) { |
544 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
545 |
final CountDownLatch done = new CountDownLatch(1); |
546 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
547 |
for (int i = 0; i < tasks.length; i++) { |
548 |
Runnable r = new CheckedRunnable() { |
549 |
public void realRun() throws InterruptedException { |
550 |
threadStarted.countDown(); |
551 |
done.await(); |
552 |
}}; |
553 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
554 |
} |
555 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
556 |
BlockingQueue<Runnable> q = p.getQueue(); |
557 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
558 |
assertFalse(q.contains(tasks[0])); |
559 |
done.countDown(); |
560 |
} |
561 |
} |
562 |
|
563 |
/** |
564 |
* remove(task) removes queued task, and fails to remove active task |
565 |
*/ |
566 |
public void testRemove() throws InterruptedException { |
567 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
568 |
try (PoolCleaner cleaner = cleaner(p)) { |
569 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
570 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
571 |
final CountDownLatch done = new CountDownLatch(1); |
572 |
for (int i = 0; i < tasks.length; i++) { |
573 |
Runnable r = new CheckedRunnable() { |
574 |
public void realRun() throws InterruptedException { |
575 |
threadStarted.countDown(); |
576 |
done.await(); |
577 |
}}; |
578 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
579 |
} |
580 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
581 |
BlockingQueue<Runnable> q = p.getQueue(); |
582 |
assertFalse(p.remove((Runnable)tasks[0])); |
583 |
assertTrue(q.contains((Runnable)tasks[4])); |
584 |
assertTrue(q.contains((Runnable)tasks[3])); |
585 |
assertTrue(p.remove((Runnable)tasks[4])); |
586 |
assertFalse(p.remove((Runnable)tasks[4])); |
587 |
assertFalse(q.contains((Runnable)tasks[4])); |
588 |
assertTrue(q.contains((Runnable)tasks[3])); |
589 |
assertTrue(p.remove((Runnable)tasks[3])); |
590 |
assertFalse(q.contains((Runnable)tasks[3])); |
591 |
done.countDown(); |
592 |
} |
593 |
} |
594 |
|
595 |
/** |
596 |
* purge eventually removes cancelled tasks from the queue |
597 |
*/ |
598 |
public void testPurge() throws InterruptedException { |
599 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
600 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
601 |
for (int i = 0; i < tasks.length; i++) |
602 |
tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), |
603 |
LONG_DELAY_MS, MILLISECONDS); |
604 |
try { |
605 |
int max = tasks.length; |
606 |
if (tasks[4].cancel(true)) --max; |
607 |
if (tasks[3].cancel(true)) --max; |
608 |
// There must eventually be an interference-free point at |
609 |
// which purge will not fail. (At worst, when queue is empty.) |
610 |
long startTime = System.nanoTime(); |
611 |
do { |
612 |
p.purge(); |
613 |
long count = p.getTaskCount(); |
614 |
if (count == max) |
615 |
return; |
616 |
} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS); |
617 |
fail("Purge failed to remove cancelled tasks"); |
618 |
} finally { |
619 |
for (ScheduledFuture task : tasks) |
620 |
task.cancel(true); |
621 |
joinPool(p); |
622 |
} |
623 |
} |
624 |
|
625 |
/** |
626 |
* shutdownNow returns a list containing tasks that were not run, |
627 |
* and those tasks are drained from the queue |
628 |
*/ |
629 |
public void testShutdownNow() throws InterruptedException { |
630 |
final int poolSize = 2; |
631 |
final int count = 5; |
632 |
final AtomicInteger ran = new AtomicInteger(0); |
633 |
final ScheduledThreadPoolExecutor p = |
634 |
new ScheduledThreadPoolExecutor(poolSize); |
635 |
CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
636 |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
637 |
threadsStarted.countDown(); |
638 |
try { |
639 |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
640 |
} catch (InterruptedException success) {} |
641 |
ran.getAndIncrement(); |
642 |
}}; |
643 |
for (int i = 0; i < count; i++) |
644 |
p.execute(waiter); |
645 |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
646 |
assertEquals(poolSize, p.getActiveCount()); |
647 |
assertEquals(0, p.getCompletedTaskCount()); |
648 |
final List<Runnable> queuedTasks; |
649 |
try { |
650 |
queuedTasks = p.shutdownNow(); |
651 |
} catch (SecurityException ok) { |
652 |
return; // Allowed in case test doesn't have privs |
653 |
} |
654 |
assertTrue(p.isShutdown()); |
655 |
assertTrue(p.getQueue().isEmpty()); |
656 |
assertEquals(count - poolSize, queuedTasks.size()); |
657 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
658 |
assertTrue(p.isTerminated()); |
659 |
assertEquals(poolSize, ran.get()); |
660 |
assertEquals(poolSize, p.getCompletedTaskCount()); |
661 |
} |
662 |
|
663 |
/** |
664 |
* shutdownNow returns a list containing tasks that were not run, |
665 |
* and those tasks are drained from the queue |
666 |
*/ |
667 |
public void testShutdownNow_delayedTasks() throws InterruptedException { |
668 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
669 |
List<ScheduledFuture> tasks = new ArrayList<>(); |
670 |
for (int i = 0; i < 3; i++) { |
671 |
Runnable r = new NoOpRunnable(); |
672 |
tasks.add(p.schedule(r, 9, SECONDS)); |
673 |
tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS)); |
674 |
tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS)); |
675 |
} |
676 |
if (testImplementationDetails) |
677 |
assertEquals(new HashSet(tasks), new HashSet(p.getQueue())); |
678 |
final List<Runnable> queuedTasks; |
679 |
try { |
680 |
queuedTasks = p.shutdownNow(); |
681 |
} catch (SecurityException ok) { |
682 |
return; // Allowed in case test doesn't have privs |
683 |
} |
684 |
assertTrue(p.isShutdown()); |
685 |
assertTrue(p.getQueue().isEmpty()); |
686 |
if (testImplementationDetails) |
687 |
assertEquals(new HashSet(tasks), new HashSet(queuedTasks)); |
688 |
assertEquals(tasks.size(), queuedTasks.size()); |
689 |
for (ScheduledFuture task : tasks) { |
690 |
assertFalse(task.isDone()); |
691 |
assertFalse(task.isCancelled()); |
692 |
} |
693 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
694 |
assertTrue(p.isTerminated()); |
695 |
} |
696 |
|
697 |
/** |
698 |
* By default, periodic tasks are cancelled at shutdown. |
699 |
* By default, delayed tasks keep running after shutdown. |
700 |
* Check that changing the default values work: |
701 |
* - setExecuteExistingDelayedTasksAfterShutdownPolicy |
702 |
* - setContinueExistingPeriodicTasksAfterShutdownPolicy |
703 |
*/ |
704 |
public void testShutdown_cancellation() throws Exception { |
705 |
Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE }; |
706 |
for (Boolean policy : allBooleans) |
707 |
{ |
708 |
final int poolSize = 2; |
709 |
final ScheduledThreadPoolExecutor p |
710 |
= new ScheduledThreadPoolExecutor(poolSize); |
711 |
final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE); |
712 |
final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE); |
713 |
final boolean effectiveRemovePolicy = (policy == Boolean.TRUE); |
714 |
if (policy != null) { |
715 |
p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy); |
716 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy); |
717 |
p.setRemoveOnCancelPolicy(policy); |
718 |
} |
719 |
assertEquals(effectiveDelayedPolicy, |
720 |
p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
721 |
assertEquals(effectivePeriodicPolicy, |
722 |
p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
723 |
assertEquals(effectiveRemovePolicy, |
724 |
p.getRemoveOnCancelPolicy()); |
725 |
// Strategy: Wedge the pool with poolSize "blocker" threads |
726 |
final AtomicInteger ran = new AtomicInteger(0); |
727 |
final CountDownLatch poolBlocked = new CountDownLatch(poolSize); |
728 |
final CountDownLatch unblock = new CountDownLatch(1); |
729 |
final CountDownLatch periodicLatch1 = new CountDownLatch(2); |
730 |
final CountDownLatch periodicLatch2 = new CountDownLatch(2); |
731 |
Runnable task = new CheckedRunnable() { public void realRun() |
732 |
throws InterruptedException { |
733 |
poolBlocked.countDown(); |
734 |
assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS)); |
735 |
ran.getAndIncrement(); |
736 |
}}; |
737 |
List<Future<?>> blockers = new ArrayList<>(); |
738 |
List<Future<?>> periodics = new ArrayList<>(); |
739 |
List<Future<?>> delayeds = new ArrayList<>(); |
740 |
for (int i = 0; i < poolSize; i++) |
741 |
blockers.add(p.submit(task)); |
742 |
assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS)); |
743 |
|
744 |
periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1), |
745 |
1, 1, MILLISECONDS)); |
746 |
periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2), |
747 |
1, 1, MILLISECONDS)); |
748 |
delayeds.add(p.schedule(task, 1, MILLISECONDS)); |
749 |
|
750 |
assertTrue(p.getQueue().containsAll(periodics)); |
751 |
assertTrue(p.getQueue().containsAll(delayeds)); |
752 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
753 |
assertTrue(p.isShutdown()); |
754 |
assertFalse(p.isTerminated()); |
755 |
for (Future<?> periodic : periodics) { |
756 |
assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled()); |
757 |
assertTrue(effectivePeriodicPolicy ^ periodic.isDone()); |
758 |
} |
759 |
for (Future<?> delayed : delayeds) { |
760 |
assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled()); |
761 |
assertTrue(effectiveDelayedPolicy ^ delayed.isDone()); |
762 |
} |
763 |
if (testImplementationDetails) { |
764 |
assertEquals(effectivePeriodicPolicy, |
765 |
p.getQueue().containsAll(periodics)); |
766 |
assertEquals(effectiveDelayedPolicy, |
767 |
p.getQueue().containsAll(delayeds)); |
768 |
} |
769 |
// Release all pool threads |
770 |
unblock.countDown(); |
771 |
|
772 |
for (Future<?> delayed : delayeds) { |
773 |
if (effectiveDelayedPolicy) { |
774 |
assertNull(delayed.get()); |
775 |
} |
776 |
} |
777 |
if (effectivePeriodicPolicy) { |
778 |
assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS)); |
779 |
assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS)); |
780 |
for (Future<?> periodic : periodics) { |
781 |
assertTrue(periodic.cancel(false)); |
782 |
assertTrue(periodic.isCancelled()); |
783 |
assertTrue(periodic.isDone()); |
784 |
} |
785 |
} |
786 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
787 |
assertTrue(p.isTerminated()); |
788 |
assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get()); |
789 |
}} |
790 |
|
791 |
/** |
792 |
* completed submit of callable returns result |
793 |
*/ |
794 |
public void testSubmitCallable() throws Exception { |
795 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
796 |
try (PoolCleaner cleaner = cleaner(e)) { |
797 |
Future<String> future = e.submit(new StringTask()); |
798 |
String result = future.get(); |
799 |
assertSame(TEST_STRING, result); |
800 |
} |
801 |
} |
802 |
|
803 |
/** |
804 |
* completed submit of runnable returns successfully |
805 |
*/ |
806 |
public void testSubmitRunnable() throws Exception { |
807 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
808 |
try (PoolCleaner cleaner = cleaner(e)) { |
809 |
Future<?> future = e.submit(new NoOpRunnable()); |
810 |
future.get(); |
811 |
assertTrue(future.isDone()); |
812 |
} |
813 |
} |
814 |
|
815 |
/** |
816 |
* completed submit of (runnable, result) returns result |
817 |
*/ |
818 |
public void testSubmitRunnable2() throws Exception { |
819 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
820 |
try (PoolCleaner cleaner = cleaner(e)) { |
821 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
822 |
String result = future.get(); |
823 |
assertSame(TEST_STRING, result); |
824 |
} |
825 |
} |
826 |
|
827 |
/** |
828 |
* invokeAny(null) throws NPE |
829 |
*/ |
830 |
public void testInvokeAny1() throws Exception { |
831 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
832 |
try (PoolCleaner cleaner = cleaner(e)) { |
833 |
try { |
834 |
e.invokeAny(null); |
835 |
shouldThrow(); |
836 |
} catch (NullPointerException success) {} |
837 |
} |
838 |
} |
839 |
|
840 |
/** |
841 |
* invokeAny(empty collection) throws IAE |
842 |
*/ |
843 |
public void testInvokeAny2() throws Exception { |
844 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
845 |
try (PoolCleaner cleaner = cleaner(e)) { |
846 |
try { |
847 |
e.invokeAny(new ArrayList<Callable<String>>()); |
848 |
shouldThrow(); |
849 |
} catch (IllegalArgumentException success) {} |
850 |
} |
851 |
} |
852 |
|
853 |
/** |
854 |
* invokeAny(c) throws NPE if c has null elements |
855 |
*/ |
856 |
public void testInvokeAny3() throws Exception { |
857 |
CountDownLatch latch = new CountDownLatch(1); |
858 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
859 |
try (PoolCleaner cleaner = cleaner(e)) { |
860 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
861 |
l.add(latchAwaitingStringTask(latch)); |
862 |
l.add(null); |
863 |
try { |
864 |
e.invokeAny(l); |
865 |
shouldThrow(); |
866 |
} catch (NullPointerException success) {} |
867 |
latch.countDown(); |
868 |
} |
869 |
} |
870 |
|
871 |
/** |
872 |
* invokeAny(c) throws ExecutionException if no task completes |
873 |
*/ |
874 |
public void testInvokeAny4() throws Exception { |
875 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
876 |
try (PoolCleaner cleaner = cleaner(e)) { |
877 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
878 |
l.add(new NPETask()); |
879 |
try { |
880 |
e.invokeAny(l); |
881 |
shouldThrow(); |
882 |
} catch (ExecutionException success) { |
883 |
assertTrue(success.getCause() instanceof NullPointerException); |
884 |
} |
885 |
} |
886 |
} |
887 |
|
888 |
/** |
889 |
* invokeAny(c) returns result of some task |
890 |
*/ |
891 |
public void testInvokeAny5() throws Exception { |
892 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
893 |
try (PoolCleaner cleaner = cleaner(e)) { |
894 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
895 |
l.add(new StringTask()); |
896 |
l.add(new StringTask()); |
897 |
String result = e.invokeAny(l); |
898 |
assertSame(TEST_STRING, result); |
899 |
} |
900 |
} |
901 |
|
902 |
/** |
903 |
* invokeAll(null) throws NPE |
904 |
*/ |
905 |
public void testInvokeAll1() throws Exception { |
906 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
907 |
try (PoolCleaner cleaner = cleaner(e)) { |
908 |
try { |
909 |
e.invokeAll(null); |
910 |
shouldThrow(); |
911 |
} catch (NullPointerException success) {} |
912 |
} |
913 |
} |
914 |
|
915 |
/** |
916 |
* invokeAll(empty collection) returns empty collection |
917 |
*/ |
918 |
public void testInvokeAll2() throws Exception { |
919 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
920 |
try (PoolCleaner cleaner = cleaner(e)) { |
921 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
922 |
assertTrue(r.isEmpty()); |
923 |
} |
924 |
} |
925 |
|
926 |
/** |
927 |
* invokeAll(c) throws NPE if c has null elements |
928 |
*/ |
929 |
public void testInvokeAll3() throws Exception { |
930 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
931 |
try (PoolCleaner cleaner = cleaner(e)) { |
932 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
933 |
l.add(new StringTask()); |
934 |
l.add(null); |
935 |
try { |
936 |
e.invokeAll(l); |
937 |
shouldThrow(); |
938 |
} catch (NullPointerException success) {} |
939 |
} |
940 |
} |
941 |
|
942 |
/** |
943 |
* get of invokeAll(c) throws exception on failed task |
944 |
*/ |
945 |
public void testInvokeAll4() throws Exception { |
946 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
947 |
try (PoolCleaner cleaner = cleaner(e)) { |
948 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
949 |
l.add(new NPETask()); |
950 |
List<Future<String>> futures = e.invokeAll(l); |
951 |
assertEquals(1, futures.size()); |
952 |
try { |
953 |
futures.get(0).get(); |
954 |
shouldThrow(); |
955 |
} catch (ExecutionException success) { |
956 |
assertTrue(success.getCause() instanceof NullPointerException); |
957 |
} |
958 |
} |
959 |
} |
960 |
|
961 |
/** |
962 |
* invokeAll(c) returns results of all completed tasks |
963 |
*/ |
964 |
public void testInvokeAll5() throws Exception { |
965 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
966 |
try (PoolCleaner cleaner = cleaner(e)) { |
967 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
968 |
l.add(new StringTask()); |
969 |
l.add(new StringTask()); |
970 |
List<Future<String>> futures = e.invokeAll(l); |
971 |
assertEquals(2, futures.size()); |
972 |
for (Future<String> future : futures) |
973 |
assertSame(TEST_STRING, future.get()); |
974 |
} |
975 |
} |
976 |
|
977 |
/** |
978 |
* timed invokeAny(null) throws NPE |
979 |
*/ |
980 |
public void testTimedInvokeAny1() throws Exception { |
981 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
982 |
try (PoolCleaner cleaner = cleaner(e)) { |
983 |
try { |
984 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
985 |
shouldThrow(); |
986 |
} catch (NullPointerException success) {} |
987 |
} |
988 |
} |
989 |
|
990 |
/** |
991 |
* timed invokeAny(,,null) throws NPE |
992 |
*/ |
993 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
994 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
995 |
try (PoolCleaner cleaner = cleaner(e)) { |
996 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
997 |
l.add(new StringTask()); |
998 |
try { |
999 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1000 |
shouldThrow(); |
1001 |
} catch (NullPointerException success) {} |
1002 |
} |
1003 |
} |
1004 |
|
1005 |
/** |
1006 |
* timed invokeAny(empty collection) throws IAE |
1007 |
*/ |
1008 |
public void testTimedInvokeAny2() throws Exception { |
1009 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1010 |
try (PoolCleaner cleaner = cleaner(e)) { |
1011 |
try { |
1012 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1013 |
shouldThrow(); |
1014 |
} catch (IllegalArgumentException success) {} |
1015 |
} |
1016 |
} |
1017 |
|
1018 |
/** |
1019 |
* timed invokeAny(c) throws NPE if c has null elements |
1020 |
*/ |
1021 |
public void testTimedInvokeAny3() throws Exception { |
1022 |
CountDownLatch latch = new CountDownLatch(1); |
1023 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1024 |
try (PoolCleaner cleaner = cleaner(e)) { |
1025 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1026 |
l.add(latchAwaitingStringTask(latch)); |
1027 |
l.add(null); |
1028 |
try { |
1029 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1030 |
shouldThrow(); |
1031 |
} catch (NullPointerException success) {} |
1032 |
latch.countDown(); |
1033 |
} |
1034 |
} |
1035 |
|
1036 |
/** |
1037 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1038 |
*/ |
1039 |
public void testTimedInvokeAny4() throws Exception { |
1040 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1041 |
try (PoolCleaner cleaner = cleaner(e)) { |
1042 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1043 |
l.add(new NPETask()); |
1044 |
try { |
1045 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1046 |
shouldThrow(); |
1047 |
} catch (ExecutionException success) { |
1048 |
assertTrue(success.getCause() instanceof NullPointerException); |
1049 |
} |
1050 |
} |
1051 |
} |
1052 |
|
1053 |
/** |
1054 |
* timed invokeAny(c) returns result of some task |
1055 |
*/ |
1056 |
public void testTimedInvokeAny5() throws Exception { |
1057 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1058 |
try (PoolCleaner cleaner = cleaner(e)) { |
1059 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1060 |
l.add(new StringTask()); |
1061 |
l.add(new StringTask()); |
1062 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1063 |
assertSame(TEST_STRING, result); |
1064 |
} |
1065 |
} |
1066 |
|
1067 |
/** |
1068 |
* timed invokeAll(null) throws NPE |
1069 |
*/ |
1070 |
public void testTimedInvokeAll1() throws Exception { |
1071 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1072 |
try (PoolCleaner cleaner = cleaner(e)) { |
1073 |
try { |
1074 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1075 |
shouldThrow(); |
1076 |
} catch (NullPointerException success) {} |
1077 |
} |
1078 |
} |
1079 |
|
1080 |
/** |
1081 |
* timed invokeAll(,,null) throws NPE |
1082 |
*/ |
1083 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1084 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1085 |
try (PoolCleaner cleaner = cleaner(e)) { |
1086 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1087 |
l.add(new StringTask()); |
1088 |
try { |
1089 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1090 |
shouldThrow(); |
1091 |
} catch (NullPointerException success) {} |
1092 |
} |
1093 |
} |
1094 |
|
1095 |
/** |
1096 |
* timed invokeAll(empty collection) returns empty collection |
1097 |
*/ |
1098 |
public void testTimedInvokeAll2() throws Exception { |
1099 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1100 |
try (PoolCleaner cleaner = cleaner(e)) { |
1101 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), |
1102 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1103 |
assertTrue(r.isEmpty()); |
1104 |
} |
1105 |
} |
1106 |
|
1107 |
/** |
1108 |
* timed invokeAll(c) throws NPE if c has null elements |
1109 |
*/ |
1110 |
public void testTimedInvokeAll3() throws Exception { |
1111 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1112 |
try (PoolCleaner cleaner = cleaner(e)) { |
1113 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1114 |
l.add(new StringTask()); |
1115 |
l.add(null); |
1116 |
try { |
1117 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1118 |
shouldThrow(); |
1119 |
} catch (NullPointerException success) {} |
1120 |
} |
1121 |
} |
1122 |
|
1123 |
/** |
1124 |
* get of element of invokeAll(c) throws exception on failed task |
1125 |
*/ |
1126 |
public void testTimedInvokeAll4() throws Exception { |
1127 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1128 |
try (PoolCleaner cleaner = cleaner(e)) { |
1129 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1130 |
l.add(new NPETask()); |
1131 |
List<Future<String>> futures = |
1132 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1133 |
assertEquals(1, futures.size()); |
1134 |
try { |
1135 |
futures.get(0).get(); |
1136 |
shouldThrow(); |
1137 |
} catch (ExecutionException success) { |
1138 |
assertTrue(success.getCause() instanceof NullPointerException); |
1139 |
} |
1140 |
} |
1141 |
} |
1142 |
|
1143 |
/** |
1144 |
* timed invokeAll(c) returns results of all completed tasks |
1145 |
*/ |
1146 |
public void testTimedInvokeAll5() throws Exception { |
1147 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1148 |
try (PoolCleaner cleaner = cleaner(e)) { |
1149 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1150 |
l.add(new StringTask()); |
1151 |
l.add(new StringTask()); |
1152 |
List<Future<String>> futures = |
1153 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1154 |
assertEquals(2, futures.size()); |
1155 |
for (Future<String> future : futures) |
1156 |
assertSame(TEST_STRING, future.get()); |
1157 |
} |
1158 |
} |
1159 |
|
1160 |
/** |
1161 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1162 |
*/ |
1163 |
public void testTimedInvokeAll6() throws Exception { |
1164 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1165 |
try (PoolCleaner cleaner = cleaner(e)) { |
1166 |
for (long timeout = timeoutMillis();;) { |
1167 |
List<Callable<String>> tasks = new ArrayList<>(); |
1168 |
tasks.add(new StringTask("0")); |
1169 |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1170 |
tasks.add(new StringTask("2")); |
1171 |
long startTime = System.nanoTime(); |
1172 |
List<Future<String>> futures = |
1173 |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1174 |
assertEquals(tasks.size(), futures.size()); |
1175 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1176 |
for (Future future : futures) |
1177 |
assertTrue(future.isDone()); |
1178 |
assertTrue(futures.get(1).isCancelled()); |
1179 |
try { |
1180 |
assertEquals("0", futures.get(0).get()); |
1181 |
assertEquals("2", futures.get(2).get()); |
1182 |
break; |
1183 |
} catch (CancellationException retryWithLongerTimeout) { |
1184 |
timeout *= 2; |
1185 |
if (timeout >= LONG_DELAY_MS / 2) |
1186 |
fail("expected exactly one task to be cancelled"); |
1187 |
} |
1188 |
} |
1189 |
} |
1190 |
} |
1191 |
|
1192 |
} |