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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 |
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*/ |
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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); |
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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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* 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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/** |
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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 ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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final CountDownLatch done = new CountDownLatch(1); |
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assertEquals(0, p.getActiveCount()); |
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p.execute(new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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threadStarted.countDown(); |
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assertEquals(1, p.getActiveCount()); |
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done.await(); |
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}}); |
320 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
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assertEquals(1, p.getActiveCount()); |
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done.countDown(); |
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} |
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} |
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|
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/** |
327 |
* getCompletedTaskCount increases, but doesn't overestimate, |
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* when tasks complete |
329 |
*/ |
330 |
public void testGetCompletedTaskCount() throws InterruptedException { |
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final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
332 |
try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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final CountDownLatch threadProceed = new CountDownLatch(1); |
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final CountDownLatch threadDone = new CountDownLatch(1); |
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assertEquals(0, p.getCompletedTaskCount()); |
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p.execute(new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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threadStarted.countDown(); |
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assertEquals(0, p.getCompletedTaskCount()); |
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threadProceed.await(); |
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threadDone.countDown(); |
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}}); |
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await(threadStarted); |
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assertEquals(0, p.getCompletedTaskCount()); |
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threadProceed.countDown(); |
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threadDone.await(); |
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long startTime = System.nanoTime(); |
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while (p.getCompletedTaskCount() != 1) { |
350 |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
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fail("timed out"); |
352 |
Thread.yield(); |
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} |
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} |
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} |
356 |
|
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/** |
358 |
* getCorePoolSize returns size given in constructor if not otherwise set |
359 |
*/ |
360 |
public void testGetCorePoolSize() throws InterruptedException { |
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ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
362 |
try (PoolCleaner cleaner = cleaner(p)) { |
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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 { |
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final int THREADS = 3; |
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final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS); |
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final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
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final CountDownLatch done = new CountDownLatch(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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assertEquals(0, p.getLargestPoolSize()); |
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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 int TASKS = 3; |
420 |
final CountDownLatch done = new CountDownLatch(1); |
421 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
422 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
423 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
424 |
assertEquals(0, p.getTaskCount()); |
425 |
assertEquals(0, p.getCompletedTaskCount()); |
426 |
p.execute(new CheckedRunnable() { |
427 |
public void realRun() throws InterruptedException { |
428 |
threadStarted.countDown(); |
429 |
done.await(); |
430 |
}}); |
431 |
assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
432 |
assertEquals(1, p.getTaskCount()); |
433 |
assertEquals(0, p.getCompletedTaskCount()); |
434 |
for (int i = 0; i < TASKS; i++) { |
435 |
assertEquals(1 + i, p.getTaskCount()); |
436 |
p.execute(new CheckedRunnable() { |
437 |
public void realRun() throws InterruptedException { |
438 |
threadStarted.countDown(); |
439 |
assertEquals(1 + TASKS, p.getTaskCount()); |
440 |
done.await(); |
441 |
}}); |
442 |
} |
443 |
assertEquals(1 + TASKS, p.getTaskCount()); |
444 |
assertEquals(0, p.getCompletedTaskCount()); |
445 |
} |
446 |
assertEquals(1 + TASKS, p.getTaskCount()); |
447 |
assertEquals(1 + TASKS, p.getCompletedTaskCount()); |
448 |
} |
449 |
|
450 |
/** |
451 |
* getThreadFactory returns factory in constructor if not set |
452 |
*/ |
453 |
public void testGetThreadFactory() throws InterruptedException { |
454 |
final ThreadFactory threadFactory = new SimpleThreadFactory(); |
455 |
final ScheduledThreadPoolExecutor p = |
456 |
new ScheduledThreadPoolExecutor(1, threadFactory); |
457 |
try (PoolCleaner cleaner = cleaner(p)) { |
458 |
assertSame(threadFactory, p.getThreadFactory()); |
459 |
} |
460 |
} |
461 |
|
462 |
/** |
463 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
464 |
*/ |
465 |
public void testSetThreadFactory() throws InterruptedException { |
466 |
ThreadFactory threadFactory = new SimpleThreadFactory(); |
467 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
468 |
try (PoolCleaner cleaner = cleaner(p)) { |
469 |
p.setThreadFactory(threadFactory); |
470 |
assertSame(threadFactory, p.getThreadFactory()); |
471 |
} |
472 |
} |
473 |
|
474 |
/** |
475 |
* setThreadFactory(null) throws NPE |
476 |
*/ |
477 |
public void testSetThreadFactoryNull() throws InterruptedException { |
478 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
479 |
try (PoolCleaner cleaner = cleaner(p)) { |
480 |
try { |
481 |
p.setThreadFactory(null); |
482 |
shouldThrow(); |
483 |
} catch (NullPointerException success) {} |
484 |
} |
485 |
} |
486 |
|
487 |
/** |
488 |
* isShutdown is false before shutdown, true after |
489 |
*/ |
490 |
public void testIsShutdown() { |
491 |
|
492 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
493 |
try { |
494 |
assertFalse(p.isShutdown()); |
495 |
} |
496 |
finally { |
497 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
498 |
} |
499 |
assertTrue(p.isShutdown()); |
500 |
} |
501 |
|
502 |
/** |
503 |
* isTerminated is false before termination, true after |
504 |
*/ |
505 |
public void testIsTerminated() throws InterruptedException { |
506 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
507 |
try (PoolCleaner cleaner = cleaner(p)) { |
508 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
509 |
final CountDownLatch done = new CountDownLatch(1); |
510 |
assertFalse(p.isTerminated()); |
511 |
p.execute(new CheckedRunnable() { |
512 |
public void realRun() throws InterruptedException { |
513 |
assertFalse(p.isTerminated()); |
514 |
threadStarted.countDown(); |
515 |
done.await(); |
516 |
}}); |
517 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
518 |
assertFalse(p.isTerminating()); |
519 |
done.countDown(); |
520 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
521 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
522 |
assertTrue(p.isTerminated()); |
523 |
} |
524 |
} |
525 |
|
526 |
/** |
527 |
* isTerminating is not true when running or when terminated |
528 |
*/ |
529 |
public void testIsTerminating() throws InterruptedException { |
530 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
531 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
532 |
final CountDownLatch done = new CountDownLatch(1); |
533 |
try (PoolCleaner cleaner = cleaner(p)) { |
534 |
assertFalse(p.isTerminating()); |
535 |
p.execute(new CheckedRunnable() { |
536 |
public void realRun() throws InterruptedException { |
537 |
assertFalse(p.isTerminating()); |
538 |
threadStarted.countDown(); |
539 |
done.await(); |
540 |
}}); |
541 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
542 |
assertFalse(p.isTerminating()); |
543 |
done.countDown(); |
544 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
545 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
546 |
assertTrue(p.isTerminated()); |
547 |
assertFalse(p.isTerminating()); |
548 |
} |
549 |
} |
550 |
|
551 |
/** |
552 |
* getQueue returns the work queue, which contains queued tasks |
553 |
*/ |
554 |
public void testGetQueue() throws InterruptedException { |
555 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
556 |
try (PoolCleaner cleaner = cleaner(p)) { |
557 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
558 |
final CountDownLatch done = new CountDownLatch(1); |
559 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
560 |
for (int i = 0; i < tasks.length; i++) { |
561 |
Runnable r = new CheckedRunnable() { |
562 |
public void realRun() throws InterruptedException { |
563 |
threadStarted.countDown(); |
564 |
done.await(); |
565 |
}}; |
566 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
567 |
} |
568 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
569 |
BlockingQueue<Runnable> q = p.getQueue(); |
570 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
571 |
assertFalse(q.contains(tasks[0])); |
572 |
done.countDown(); |
573 |
} |
574 |
} |
575 |
|
576 |
/** |
577 |
* remove(task) removes queued task, and fails to remove active task |
578 |
*/ |
579 |
public void testRemove() throws InterruptedException { |
580 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
581 |
try (PoolCleaner cleaner = cleaner(p)) { |
582 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
583 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
584 |
final CountDownLatch done = new CountDownLatch(1); |
585 |
for (int i = 0; i < tasks.length; i++) { |
586 |
Runnable r = new CheckedRunnable() { |
587 |
public void realRun() throws InterruptedException { |
588 |
threadStarted.countDown(); |
589 |
done.await(); |
590 |
}}; |
591 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
592 |
} |
593 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
594 |
BlockingQueue<Runnable> q = p.getQueue(); |
595 |
assertFalse(p.remove((Runnable)tasks[0])); |
596 |
assertTrue(q.contains((Runnable)tasks[4])); |
597 |
assertTrue(q.contains((Runnable)tasks[3])); |
598 |
assertTrue(p.remove((Runnable)tasks[4])); |
599 |
assertFalse(p.remove((Runnable)tasks[4])); |
600 |
assertFalse(q.contains((Runnable)tasks[4])); |
601 |
assertTrue(q.contains((Runnable)tasks[3])); |
602 |
assertTrue(p.remove((Runnable)tasks[3])); |
603 |
assertFalse(q.contains((Runnable)tasks[3])); |
604 |
done.countDown(); |
605 |
} |
606 |
} |
607 |
|
608 |
/** |
609 |
* purge eventually removes cancelled tasks from the queue |
610 |
*/ |
611 |
public void testPurge() throws InterruptedException { |
612 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
613 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
614 |
for (int i = 0; i < tasks.length; i++) |
615 |
tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), |
616 |
LONG_DELAY_MS, MILLISECONDS); |
617 |
try { |
618 |
int max = tasks.length; |
619 |
if (tasks[4].cancel(true)) --max; |
620 |
if (tasks[3].cancel(true)) --max; |
621 |
// There must eventually be an interference-free point at |
622 |
// which purge will not fail. (At worst, when queue is empty.) |
623 |
long startTime = System.nanoTime(); |
624 |
do { |
625 |
p.purge(); |
626 |
long count = p.getTaskCount(); |
627 |
if (count == max) |
628 |
return; |
629 |
} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS); |
630 |
fail("Purge failed to remove cancelled tasks"); |
631 |
} finally { |
632 |
for (ScheduledFuture task : tasks) |
633 |
task.cancel(true); |
634 |
joinPool(p); |
635 |
} |
636 |
} |
637 |
|
638 |
/** |
639 |
* shutdownNow returns a list containing tasks that were not run, |
640 |
* and those tasks are drained from the queue |
641 |
*/ |
642 |
public void testShutdownNow() throws InterruptedException { |
643 |
final int poolSize = 2; |
644 |
final int count = 5; |
645 |
final AtomicInteger ran = new AtomicInteger(0); |
646 |
final ScheduledThreadPoolExecutor p = |
647 |
new ScheduledThreadPoolExecutor(poolSize); |
648 |
final CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
649 |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
650 |
threadsStarted.countDown(); |
651 |
try { |
652 |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
653 |
} catch (InterruptedException success) {} |
654 |
ran.getAndIncrement(); |
655 |
}}; |
656 |
for (int i = 0; i < count; i++) |
657 |
p.execute(waiter); |
658 |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
659 |
assertEquals(poolSize, p.getActiveCount()); |
660 |
assertEquals(0, p.getCompletedTaskCount()); |
661 |
final List<Runnable> queuedTasks; |
662 |
try { |
663 |
queuedTasks = p.shutdownNow(); |
664 |
} catch (SecurityException ok) { |
665 |
return; // Allowed in case test doesn't have privs |
666 |
} |
667 |
assertTrue(p.isShutdown()); |
668 |
assertTrue(p.getQueue().isEmpty()); |
669 |
assertEquals(count - poolSize, queuedTasks.size()); |
670 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
671 |
assertTrue(p.isTerminated()); |
672 |
assertEquals(poolSize, ran.get()); |
673 |
assertEquals(poolSize, p.getCompletedTaskCount()); |
674 |
} |
675 |
|
676 |
/** |
677 |
* shutdownNow returns a list containing tasks that were not run, |
678 |
* and those tasks are drained from the queue |
679 |
*/ |
680 |
public void testShutdownNow_delayedTasks() throws InterruptedException { |
681 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
682 |
List<ScheduledFuture> tasks = new ArrayList<>(); |
683 |
for (int i = 0; i < 3; i++) { |
684 |
Runnable r = new NoOpRunnable(); |
685 |
tasks.add(p.schedule(r, 9, SECONDS)); |
686 |
tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS)); |
687 |
tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS)); |
688 |
} |
689 |
if (testImplementationDetails) |
690 |
assertEquals(new HashSet(tasks), new HashSet(p.getQueue())); |
691 |
final List<Runnable> queuedTasks; |
692 |
try { |
693 |
queuedTasks = p.shutdownNow(); |
694 |
} catch (SecurityException ok) { |
695 |
return; // Allowed in case test doesn't have privs |
696 |
} |
697 |
assertTrue(p.isShutdown()); |
698 |
assertTrue(p.getQueue().isEmpty()); |
699 |
if (testImplementationDetails) |
700 |
assertEquals(new HashSet(tasks), new HashSet(queuedTasks)); |
701 |
assertEquals(tasks.size(), queuedTasks.size()); |
702 |
for (ScheduledFuture task : tasks) { |
703 |
assertFalse(task.isDone()); |
704 |
assertFalse(task.isCancelled()); |
705 |
} |
706 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
707 |
assertTrue(p.isTerminated()); |
708 |
} |
709 |
|
710 |
/** |
711 |
* By default, periodic tasks are cancelled at shutdown. |
712 |
* By default, delayed tasks keep running after shutdown. |
713 |
* Check that changing the default values work: |
714 |
* - setExecuteExistingDelayedTasksAfterShutdownPolicy |
715 |
* - setContinueExistingPeriodicTasksAfterShutdownPolicy |
716 |
*/ |
717 |
public void testShutdown_cancellation() throws Exception { |
718 |
Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE }; |
719 |
for (Boolean policy : allBooleans) |
720 |
{ |
721 |
final int poolSize = 2; |
722 |
final ScheduledThreadPoolExecutor p |
723 |
= new ScheduledThreadPoolExecutor(poolSize); |
724 |
final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE); |
725 |
final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE); |
726 |
final boolean effectiveRemovePolicy = (policy == Boolean.TRUE); |
727 |
if (policy != null) { |
728 |
p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy); |
729 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy); |
730 |
p.setRemoveOnCancelPolicy(policy); |
731 |
} |
732 |
assertEquals(effectiveDelayedPolicy, |
733 |
p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
734 |
assertEquals(effectivePeriodicPolicy, |
735 |
p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
736 |
assertEquals(effectiveRemovePolicy, |
737 |
p.getRemoveOnCancelPolicy()); |
738 |
// Strategy: Wedge the pool with poolSize "blocker" threads |
739 |
final AtomicInteger ran = new AtomicInteger(0); |
740 |
final CountDownLatch poolBlocked = new CountDownLatch(poolSize); |
741 |
final CountDownLatch unblock = new CountDownLatch(1); |
742 |
final CountDownLatch periodicLatch1 = new CountDownLatch(2); |
743 |
final CountDownLatch periodicLatch2 = new CountDownLatch(2); |
744 |
Runnable task = new CheckedRunnable() { public void realRun() |
745 |
throws InterruptedException { |
746 |
poolBlocked.countDown(); |
747 |
assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS)); |
748 |
ran.getAndIncrement(); |
749 |
}}; |
750 |
List<Future<?>> blockers = new ArrayList<>(); |
751 |
List<Future<?>> periodics = new ArrayList<>(); |
752 |
List<Future<?>> delayeds = new ArrayList<>(); |
753 |
for (int i = 0; i < poolSize; i++) |
754 |
blockers.add(p.submit(task)); |
755 |
assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS)); |
756 |
|
757 |
periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1), |
758 |
1, 1, MILLISECONDS)); |
759 |
periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2), |
760 |
1, 1, MILLISECONDS)); |
761 |
delayeds.add(p.schedule(task, 1, MILLISECONDS)); |
762 |
|
763 |
assertTrue(p.getQueue().containsAll(periodics)); |
764 |
assertTrue(p.getQueue().containsAll(delayeds)); |
765 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
766 |
assertTrue(p.isShutdown()); |
767 |
assertFalse(p.isTerminated()); |
768 |
for (Future<?> periodic : periodics) { |
769 |
assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled()); |
770 |
assertTrue(effectivePeriodicPolicy ^ periodic.isDone()); |
771 |
} |
772 |
for (Future<?> delayed : delayeds) { |
773 |
assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled()); |
774 |
assertTrue(effectiveDelayedPolicy ^ delayed.isDone()); |
775 |
} |
776 |
if (testImplementationDetails) { |
777 |
assertEquals(effectivePeriodicPolicy, |
778 |
p.getQueue().containsAll(periodics)); |
779 |
assertEquals(effectiveDelayedPolicy, |
780 |
p.getQueue().containsAll(delayeds)); |
781 |
} |
782 |
// Release all pool threads |
783 |
unblock.countDown(); |
784 |
|
785 |
for (Future<?> delayed : delayeds) { |
786 |
if (effectiveDelayedPolicy) { |
787 |
assertNull(delayed.get()); |
788 |
} |
789 |
} |
790 |
if (effectivePeriodicPolicy) { |
791 |
assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS)); |
792 |
assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS)); |
793 |
for (Future<?> periodic : periodics) { |
794 |
assertTrue(periodic.cancel(false)); |
795 |
assertTrue(periodic.isCancelled()); |
796 |
assertTrue(periodic.isDone()); |
797 |
} |
798 |
} |
799 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
800 |
assertTrue(p.isTerminated()); |
801 |
assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get()); |
802 |
}} |
803 |
|
804 |
/** |
805 |
* completed submit of callable returns result |
806 |
*/ |
807 |
public void testSubmitCallable() throws Exception { |
808 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
809 |
try (PoolCleaner cleaner = cleaner(e)) { |
810 |
Future<String> future = e.submit(new StringTask()); |
811 |
String result = future.get(); |
812 |
assertSame(TEST_STRING, result); |
813 |
} |
814 |
} |
815 |
|
816 |
/** |
817 |
* completed submit of runnable returns successfully |
818 |
*/ |
819 |
public void testSubmitRunnable() throws Exception { |
820 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
821 |
try (PoolCleaner cleaner = cleaner(e)) { |
822 |
Future<?> future = e.submit(new NoOpRunnable()); |
823 |
future.get(); |
824 |
assertTrue(future.isDone()); |
825 |
} |
826 |
} |
827 |
|
828 |
/** |
829 |
* completed submit of (runnable, result) returns result |
830 |
*/ |
831 |
public void testSubmitRunnable2() throws Exception { |
832 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
833 |
try (PoolCleaner cleaner = cleaner(e)) { |
834 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
835 |
String result = future.get(); |
836 |
assertSame(TEST_STRING, result); |
837 |
} |
838 |
} |
839 |
|
840 |
/** |
841 |
* invokeAny(null) throws NPE |
842 |
*/ |
843 |
public void testInvokeAny1() throws Exception { |
844 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
845 |
try (PoolCleaner cleaner = cleaner(e)) { |
846 |
try { |
847 |
e.invokeAny(null); |
848 |
shouldThrow(); |
849 |
} catch (NullPointerException success) {} |
850 |
} |
851 |
} |
852 |
|
853 |
/** |
854 |
* invokeAny(empty collection) throws IAE |
855 |
*/ |
856 |
public void testInvokeAny2() throws Exception { |
857 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
858 |
try (PoolCleaner cleaner = cleaner(e)) { |
859 |
try { |
860 |
e.invokeAny(new ArrayList<Callable<String>>()); |
861 |
shouldThrow(); |
862 |
} catch (IllegalArgumentException success) {} |
863 |
} |
864 |
} |
865 |
|
866 |
/** |
867 |
* invokeAny(c) throws NPE if c has null elements |
868 |
*/ |
869 |
public void testInvokeAny3() throws Exception { |
870 |
CountDownLatch latch = new CountDownLatch(1); |
871 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
872 |
try (PoolCleaner cleaner = cleaner(e)) { |
873 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
874 |
l.add(latchAwaitingStringTask(latch)); |
875 |
l.add(null); |
876 |
try { |
877 |
e.invokeAny(l); |
878 |
shouldThrow(); |
879 |
} catch (NullPointerException success) {} |
880 |
latch.countDown(); |
881 |
} |
882 |
} |
883 |
|
884 |
/** |
885 |
* invokeAny(c) throws ExecutionException if no task completes |
886 |
*/ |
887 |
public void testInvokeAny4() throws Exception { |
888 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
889 |
try (PoolCleaner cleaner = cleaner(e)) { |
890 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
891 |
l.add(new NPETask()); |
892 |
try { |
893 |
e.invokeAny(l); |
894 |
shouldThrow(); |
895 |
} catch (ExecutionException success) { |
896 |
assertTrue(success.getCause() instanceof NullPointerException); |
897 |
} |
898 |
} |
899 |
} |
900 |
|
901 |
/** |
902 |
* invokeAny(c) returns result of some task |
903 |
*/ |
904 |
public void testInvokeAny5() throws Exception { |
905 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
906 |
try (PoolCleaner cleaner = cleaner(e)) { |
907 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
908 |
l.add(new StringTask()); |
909 |
l.add(new StringTask()); |
910 |
String result = e.invokeAny(l); |
911 |
assertSame(TEST_STRING, result); |
912 |
} |
913 |
} |
914 |
|
915 |
/** |
916 |
* invokeAll(null) throws NPE |
917 |
*/ |
918 |
public void testInvokeAll1() throws Exception { |
919 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
920 |
try (PoolCleaner cleaner = cleaner(e)) { |
921 |
try { |
922 |
e.invokeAll(null); |
923 |
shouldThrow(); |
924 |
} catch (NullPointerException success) {} |
925 |
} |
926 |
} |
927 |
|
928 |
/** |
929 |
* invokeAll(empty collection) returns empty collection |
930 |
*/ |
931 |
public void testInvokeAll2() throws Exception { |
932 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
933 |
try (PoolCleaner cleaner = cleaner(e)) { |
934 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
935 |
assertTrue(r.isEmpty()); |
936 |
} |
937 |
} |
938 |
|
939 |
/** |
940 |
* invokeAll(c) throws NPE if c has null elements |
941 |
*/ |
942 |
public void testInvokeAll3() throws Exception { |
943 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
944 |
try (PoolCleaner cleaner = cleaner(e)) { |
945 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
946 |
l.add(new StringTask()); |
947 |
l.add(null); |
948 |
try { |
949 |
e.invokeAll(l); |
950 |
shouldThrow(); |
951 |
} catch (NullPointerException success) {} |
952 |
} |
953 |
} |
954 |
|
955 |
/** |
956 |
* get of invokeAll(c) throws exception on failed task |
957 |
*/ |
958 |
public void testInvokeAll4() throws Exception { |
959 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
960 |
try (PoolCleaner cleaner = cleaner(e)) { |
961 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
962 |
l.add(new NPETask()); |
963 |
List<Future<String>> futures = e.invokeAll(l); |
964 |
assertEquals(1, futures.size()); |
965 |
try { |
966 |
futures.get(0).get(); |
967 |
shouldThrow(); |
968 |
} catch (ExecutionException success) { |
969 |
assertTrue(success.getCause() instanceof NullPointerException); |
970 |
} |
971 |
} |
972 |
} |
973 |
|
974 |
/** |
975 |
* invokeAll(c) returns results of all completed tasks |
976 |
*/ |
977 |
public void testInvokeAll5() throws Exception { |
978 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
979 |
try (PoolCleaner cleaner = cleaner(e)) { |
980 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
981 |
l.add(new StringTask()); |
982 |
l.add(new StringTask()); |
983 |
List<Future<String>> futures = e.invokeAll(l); |
984 |
assertEquals(2, futures.size()); |
985 |
for (Future<String> future : futures) |
986 |
assertSame(TEST_STRING, future.get()); |
987 |
} |
988 |
} |
989 |
|
990 |
/** |
991 |
* timed invokeAny(null) throws NPE |
992 |
*/ |
993 |
public void testTimedInvokeAny1() throws Exception { |
994 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
995 |
try (PoolCleaner cleaner = cleaner(e)) { |
996 |
try { |
997 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
998 |
shouldThrow(); |
999 |
} catch (NullPointerException success) {} |
1000 |
} |
1001 |
} |
1002 |
|
1003 |
/** |
1004 |
* timed invokeAny(,,null) throws NPE |
1005 |
*/ |
1006 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1007 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1008 |
try (PoolCleaner cleaner = cleaner(e)) { |
1009 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1010 |
l.add(new StringTask()); |
1011 |
try { |
1012 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1013 |
shouldThrow(); |
1014 |
} catch (NullPointerException success) {} |
1015 |
} |
1016 |
} |
1017 |
|
1018 |
/** |
1019 |
* timed invokeAny(empty collection) throws IAE |
1020 |
*/ |
1021 |
public void testTimedInvokeAny2() throws Exception { |
1022 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1023 |
try (PoolCleaner cleaner = cleaner(e)) { |
1024 |
try { |
1025 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1026 |
shouldThrow(); |
1027 |
} catch (IllegalArgumentException success) {} |
1028 |
} |
1029 |
} |
1030 |
|
1031 |
/** |
1032 |
* timed invokeAny(c) throws NPE if c has null elements |
1033 |
*/ |
1034 |
public void testTimedInvokeAny3() throws Exception { |
1035 |
CountDownLatch latch = new CountDownLatch(1); |
1036 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1037 |
try (PoolCleaner cleaner = cleaner(e)) { |
1038 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1039 |
l.add(latchAwaitingStringTask(latch)); |
1040 |
l.add(null); |
1041 |
try { |
1042 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1043 |
shouldThrow(); |
1044 |
} catch (NullPointerException success) {} |
1045 |
latch.countDown(); |
1046 |
} |
1047 |
} |
1048 |
|
1049 |
/** |
1050 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1051 |
*/ |
1052 |
public void testTimedInvokeAny4() throws Exception { |
1053 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1054 |
try (PoolCleaner cleaner = cleaner(e)) { |
1055 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1056 |
l.add(new NPETask()); |
1057 |
try { |
1058 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1059 |
shouldThrow(); |
1060 |
} catch (ExecutionException success) { |
1061 |
assertTrue(success.getCause() instanceof NullPointerException); |
1062 |
} |
1063 |
} |
1064 |
} |
1065 |
|
1066 |
/** |
1067 |
* timed invokeAny(c) returns result of some task |
1068 |
*/ |
1069 |
public void testTimedInvokeAny5() throws Exception { |
1070 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1071 |
try (PoolCleaner cleaner = cleaner(e)) { |
1072 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1073 |
l.add(new StringTask()); |
1074 |
l.add(new StringTask()); |
1075 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1076 |
assertSame(TEST_STRING, result); |
1077 |
} |
1078 |
} |
1079 |
|
1080 |
/** |
1081 |
* timed invokeAll(null) throws NPE |
1082 |
*/ |
1083 |
public void testTimedInvokeAll1() throws Exception { |
1084 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1085 |
try (PoolCleaner cleaner = cleaner(e)) { |
1086 |
try { |
1087 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1088 |
shouldThrow(); |
1089 |
} catch (NullPointerException success) {} |
1090 |
} |
1091 |
} |
1092 |
|
1093 |
/** |
1094 |
* timed invokeAll(,,null) throws NPE |
1095 |
*/ |
1096 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1097 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1098 |
try (PoolCleaner cleaner = cleaner(e)) { |
1099 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1100 |
l.add(new StringTask()); |
1101 |
try { |
1102 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1103 |
shouldThrow(); |
1104 |
} catch (NullPointerException success) {} |
1105 |
} |
1106 |
} |
1107 |
|
1108 |
/** |
1109 |
* timed invokeAll(empty collection) returns empty collection |
1110 |
*/ |
1111 |
public void testTimedInvokeAll2() throws Exception { |
1112 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1113 |
try (PoolCleaner cleaner = cleaner(e)) { |
1114 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), |
1115 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1116 |
assertTrue(r.isEmpty()); |
1117 |
} |
1118 |
} |
1119 |
|
1120 |
/** |
1121 |
* timed invokeAll(c) throws NPE if c has null elements |
1122 |
*/ |
1123 |
public void testTimedInvokeAll3() throws Exception { |
1124 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1125 |
try (PoolCleaner cleaner = cleaner(e)) { |
1126 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1127 |
l.add(new StringTask()); |
1128 |
l.add(null); |
1129 |
try { |
1130 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1131 |
shouldThrow(); |
1132 |
} catch (NullPointerException success) {} |
1133 |
} |
1134 |
} |
1135 |
|
1136 |
/** |
1137 |
* get of element of invokeAll(c) throws exception on failed task |
1138 |
*/ |
1139 |
public void testTimedInvokeAll4() throws Exception { |
1140 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1141 |
try (PoolCleaner cleaner = cleaner(e)) { |
1142 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1143 |
l.add(new NPETask()); |
1144 |
List<Future<String>> futures = |
1145 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1146 |
assertEquals(1, futures.size()); |
1147 |
try { |
1148 |
futures.get(0).get(); |
1149 |
shouldThrow(); |
1150 |
} catch (ExecutionException success) { |
1151 |
assertTrue(success.getCause() instanceof NullPointerException); |
1152 |
} |
1153 |
} |
1154 |
} |
1155 |
|
1156 |
/** |
1157 |
* timed invokeAll(c) returns results of all completed tasks |
1158 |
*/ |
1159 |
public void testTimedInvokeAll5() throws Exception { |
1160 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1161 |
try (PoolCleaner cleaner = cleaner(e)) { |
1162 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1163 |
l.add(new StringTask()); |
1164 |
l.add(new StringTask()); |
1165 |
List<Future<String>> futures = |
1166 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1167 |
assertEquals(2, futures.size()); |
1168 |
for (Future<String> future : futures) |
1169 |
assertSame(TEST_STRING, future.get()); |
1170 |
} |
1171 |
} |
1172 |
|
1173 |
/** |
1174 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1175 |
*/ |
1176 |
public void testTimedInvokeAll6() throws Exception { |
1177 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1178 |
try (PoolCleaner cleaner = cleaner(e)) { |
1179 |
for (long timeout = timeoutMillis();;) { |
1180 |
List<Callable<String>> tasks = new ArrayList<>(); |
1181 |
tasks.add(new StringTask("0")); |
1182 |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1183 |
tasks.add(new StringTask("2")); |
1184 |
long startTime = System.nanoTime(); |
1185 |
List<Future<String>> futures = |
1186 |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1187 |
assertEquals(tasks.size(), futures.size()); |
1188 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1189 |
for (Future future : futures) |
1190 |
assertTrue(future.isDone()); |
1191 |
assertTrue(futures.get(1).isCancelled()); |
1192 |
try { |
1193 |
assertEquals("0", futures.get(0).get()); |
1194 |
assertEquals("2", futures.get(2).get()); |
1195 |
break; |
1196 |
} catch (CancellationException retryWithLongerTimeout) { |
1197 |
timeout *= 2; |
1198 |
if (timeout >= LONG_DELAY_MS / 2) |
1199 |
fail("expected exactly one task to be cancelled"); |
1200 |
} |
1201 |
} |
1202 |
} |
1203 |
} |
1204 |
|
1205 |
} |