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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.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.AtomicBoolean; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import java.util.concurrent.atomic.AtomicLong; |
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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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final 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(LONG_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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final 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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final 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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final 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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final 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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* Eventually, it must hold that: |
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* cycles - 1 <= elapsedMillis/delay < cycles |
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*/ |
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public void testFixedRateSequence() 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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for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
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final long startTime = System.nanoTime(); |
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final int cycles = 8; |
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final CountDownLatch done = new CountDownLatch(cycles); |
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final Runnable task = new CheckedRunnable() { |
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public void realRun() { done.countDown(); }}; |
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final ScheduledFuture periodicTask = |
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p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS); |
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final int totalDelayMillis = (cycles - 1) * delay; |
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await(done, totalDelayMillis + LONG_DELAY_MS); |
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periodicTask.cancel(true); |
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final long elapsedMillis = millisElapsedSince(startTime); |
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assertTrue(elapsedMillis >= totalDelayMillis); |
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if (elapsedMillis <= cycles * delay) |
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return; |
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// else retry with longer delay |
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} |
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fail("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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* Eventually, it must hold that each task starts at least delay and at |
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* most 2 * delay after the termination of the previous task. |
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*/ |
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public void testFixedDelaySequence() 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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for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
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final long startTime = System.nanoTime(); |
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final AtomicLong previous = new AtomicLong(startTime); |
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final AtomicBoolean tryLongerDelay = new AtomicBoolean(false); |
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final int cycles = 8; |
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final CountDownLatch done = new CountDownLatch(cycles); |
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final int d = delay; |
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final Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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long now = System.nanoTime(); |
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long elapsedMillis |
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= NANOSECONDS.toMillis(now - previous.get()); |
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if (done.getCount() == cycles) { // first execution |
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if (elapsedMillis >= d) |
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tryLongerDelay.set(true); |
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} else { |
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assertTrue(elapsedMillis >= d); |
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if (elapsedMillis >= 2 * d) |
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tryLongerDelay.set(true); |
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} |
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previous.set(now); |
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done.countDown(); |
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}}; |
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final ScheduledFuture periodicTask = |
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p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS); |
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final int totalDelayMillis = (cycles - 1) * delay; |
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await(done, totalDelayMillis + cycles * LONG_DELAY_MS); |
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periodicTask.cancel(true); |
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final long elapsedMillis = millisElapsedSince(startTime); |
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assertTrue(elapsedMillis >= totalDelayMillis); |
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if (!tryLongerDelay.get()) |
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return; |
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// else retry with longer delay |
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} |
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fail("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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final 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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final 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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final 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(); |
277 |
} 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 |
284 |
*/ |
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public void testSchedule3_RejectedExecutionException() 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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p.shutdown(); |
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p.schedule(new NoOpCallable(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
293 |
} catch (RejectedExecutionException success) { |
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} catch (SecurityException ok) {} |
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} |
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} |
297 |
|
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/** |
299 |
* scheduleAtFixedRate throws RejectedExecutionException if shutdown |
300 |
*/ |
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public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException { |
302 |
final 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(); |
309 |
} catch (RejectedExecutionException success) { |
310 |
} catch (SecurityException ok) {} |
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} |
312 |
} |
313 |
|
314 |
/** |
315 |
* scheduleWithFixedDelay throws RejectedExecutionException if shutdown |
316 |
*/ |
317 |
public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException { |
318 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
319 |
try (PoolCleaner cleaner = cleaner(p)) { |
320 |
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); |
324 |
shouldThrow(); |
325 |
} catch (RejectedExecutionException success) { |
326 |
} catch (SecurityException ok) {} |
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} |
328 |
} |
329 |
|
330 |
/** |
331 |
* getActiveCount increases but doesn't overestimate, when a |
332 |
* thread becomes active |
333 |
*/ |
334 |
public void testGetActiveCount() throws InterruptedException { |
335 |
final CountDownLatch done = new CountDownLatch(1); |
336 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
337 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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assertEquals(0, p.getActiveCount()); |
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p.execute(new CheckedRunnable() { |
341 |
public void realRun() throws InterruptedException { |
342 |
threadStarted.countDown(); |
343 |
assertEquals(1, p.getActiveCount()); |
344 |
await(done); |
345 |
}}); |
346 |
await(threadStarted); |
347 |
assertEquals(1, p.getActiveCount()); |
348 |
} |
349 |
} |
350 |
|
351 |
/** |
352 |
* getCompletedTaskCount increases, but doesn't overestimate, |
353 |
* when tasks complete |
354 |
*/ |
355 |
public void testGetCompletedTaskCount() throws InterruptedException { |
356 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
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try (PoolCleaner cleaner = cleaner(p)) { |
358 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
359 |
final CountDownLatch threadProceed = new CountDownLatch(1); |
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final CountDownLatch threadDone = new CountDownLatch(1); |
361 |
assertEquals(0, p.getCompletedTaskCount()); |
362 |
p.execute(new CheckedRunnable() { |
363 |
public void realRun() throws InterruptedException { |
364 |
threadStarted.countDown(); |
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assertEquals(0, p.getCompletedTaskCount()); |
366 |
threadProceed.await(); |
367 |
threadDone.countDown(); |
368 |
}}); |
369 |
await(threadStarted); |
370 |
assertEquals(0, p.getCompletedTaskCount()); |
371 |
threadProceed.countDown(); |
372 |
threadDone.await(); |
373 |
long startTime = System.nanoTime(); |
374 |
while (p.getCompletedTaskCount() != 1) { |
375 |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
376 |
fail("timed out"); |
377 |
Thread.yield(); |
378 |
} |
379 |
} |
380 |
} |
381 |
|
382 |
/** |
383 |
* getCorePoolSize returns size given in constructor if not otherwise set |
384 |
*/ |
385 |
public void testGetCorePoolSize() throws InterruptedException { |
386 |
ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
387 |
try (PoolCleaner cleaner = cleaner(p)) { |
388 |
assertEquals(1, p.getCorePoolSize()); |
389 |
} |
390 |
} |
391 |
|
392 |
/** |
393 |
* getLargestPoolSize increases, but doesn't overestimate, when |
394 |
* multiple threads active |
395 |
*/ |
396 |
public void testGetLargestPoolSize() throws InterruptedException { |
397 |
final int THREADS = 3; |
398 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS); |
399 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
400 |
final CountDownLatch done = new CountDownLatch(1); |
401 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
402 |
assertEquals(0, p.getLargestPoolSize()); |
403 |
for (int i = 0; i < THREADS; i++) |
404 |
p.execute(new CheckedRunnable() { |
405 |
public void realRun() throws InterruptedException { |
406 |
threadsStarted.countDown(); |
407 |
await(done); |
408 |
assertEquals(THREADS, p.getLargestPoolSize()); |
409 |
}}); |
410 |
await(threadsStarted); |
411 |
assertEquals(THREADS, p.getLargestPoolSize()); |
412 |
} |
413 |
assertEquals(THREADS, p.getLargestPoolSize()); |
414 |
} |
415 |
|
416 |
/** |
417 |
* getPoolSize increases, but doesn't overestimate, when threads |
418 |
* become active |
419 |
*/ |
420 |
public void testGetPoolSize() throws InterruptedException { |
421 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
422 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
423 |
final CountDownLatch done = new CountDownLatch(1); |
424 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
425 |
assertEquals(0, p.getPoolSize()); |
426 |
p.execute(new CheckedRunnable() { |
427 |
public void realRun() throws InterruptedException { |
428 |
threadStarted.countDown(); |
429 |
assertEquals(1, p.getPoolSize()); |
430 |
await(done); |
431 |
}}); |
432 |
await(threadStarted); |
433 |
assertEquals(1, p.getPoolSize()); |
434 |
} |
435 |
} |
436 |
|
437 |
/** |
438 |
* getTaskCount increases, but doesn't overestimate, when tasks |
439 |
* submitted |
440 |
*/ |
441 |
public void testGetTaskCount() throws InterruptedException { |
442 |
final int TASKS = 3; |
443 |
final CountDownLatch done = new CountDownLatch(1); |
444 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
445 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
446 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
447 |
assertEquals(0, p.getTaskCount()); |
448 |
assertEquals(0, p.getCompletedTaskCount()); |
449 |
p.execute(new CheckedRunnable() { |
450 |
public void realRun() throws InterruptedException { |
451 |
threadStarted.countDown(); |
452 |
await(done); |
453 |
}}); |
454 |
await(threadStarted); |
455 |
assertEquals(1, p.getTaskCount()); |
456 |
assertEquals(0, p.getCompletedTaskCount()); |
457 |
for (int i = 0; i < TASKS; i++) { |
458 |
assertEquals(1 + i, p.getTaskCount()); |
459 |
p.execute(new CheckedRunnable() { |
460 |
public void realRun() throws InterruptedException { |
461 |
threadStarted.countDown(); |
462 |
assertEquals(1 + TASKS, p.getTaskCount()); |
463 |
await(done); |
464 |
}}); |
465 |
} |
466 |
assertEquals(1 + TASKS, p.getTaskCount()); |
467 |
assertEquals(0, p.getCompletedTaskCount()); |
468 |
} |
469 |
assertEquals(1 + TASKS, p.getTaskCount()); |
470 |
assertEquals(1 + TASKS, p.getCompletedTaskCount()); |
471 |
} |
472 |
|
473 |
/** |
474 |
* getThreadFactory returns factory in constructor if not set |
475 |
*/ |
476 |
public void testGetThreadFactory() throws InterruptedException { |
477 |
final ThreadFactory threadFactory = new SimpleThreadFactory(); |
478 |
final ScheduledThreadPoolExecutor p = |
479 |
new ScheduledThreadPoolExecutor(1, threadFactory); |
480 |
try (PoolCleaner cleaner = cleaner(p)) { |
481 |
assertSame(threadFactory, p.getThreadFactory()); |
482 |
} |
483 |
} |
484 |
|
485 |
/** |
486 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
487 |
*/ |
488 |
public void testSetThreadFactory() throws InterruptedException { |
489 |
ThreadFactory threadFactory = new SimpleThreadFactory(); |
490 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
491 |
try (PoolCleaner cleaner = cleaner(p)) { |
492 |
p.setThreadFactory(threadFactory); |
493 |
assertSame(threadFactory, p.getThreadFactory()); |
494 |
} |
495 |
} |
496 |
|
497 |
/** |
498 |
* setThreadFactory(null) throws NPE |
499 |
*/ |
500 |
public void testSetThreadFactoryNull() throws InterruptedException { |
501 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
502 |
try (PoolCleaner cleaner = cleaner(p)) { |
503 |
try { |
504 |
p.setThreadFactory(null); |
505 |
shouldThrow(); |
506 |
} catch (NullPointerException success) {} |
507 |
} |
508 |
} |
509 |
|
510 |
/** |
511 |
* isShutdown is false before shutdown, true after |
512 |
*/ |
513 |
public void testIsShutdown() { |
514 |
|
515 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
516 |
try { |
517 |
assertFalse(p.isShutdown()); |
518 |
} |
519 |
finally { |
520 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
521 |
} |
522 |
assertTrue(p.isShutdown()); |
523 |
} |
524 |
|
525 |
/** |
526 |
* isTerminated is false before termination, true after |
527 |
*/ |
528 |
public void testIsTerminated() throws InterruptedException { |
529 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
530 |
try (PoolCleaner cleaner = cleaner(p)) { |
531 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
532 |
final CountDownLatch done = new CountDownLatch(1); |
533 |
assertFalse(p.isTerminated()); |
534 |
p.execute(new CheckedRunnable() { |
535 |
public void realRun() throws InterruptedException { |
536 |
assertFalse(p.isTerminated()); |
537 |
threadStarted.countDown(); |
538 |
await(done); |
539 |
}}); |
540 |
await(threadStarted); |
541 |
assertFalse(p.isTerminating()); |
542 |
done.countDown(); |
543 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
544 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
545 |
assertTrue(p.isTerminated()); |
546 |
} |
547 |
} |
548 |
|
549 |
/** |
550 |
* isTerminating is not true when running or when terminated |
551 |
*/ |
552 |
public void testIsTerminating() throws InterruptedException { |
553 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
554 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
555 |
final CountDownLatch done = new CountDownLatch(1); |
556 |
try (PoolCleaner cleaner = cleaner(p)) { |
557 |
assertFalse(p.isTerminating()); |
558 |
p.execute(new CheckedRunnable() { |
559 |
public void realRun() throws InterruptedException { |
560 |
assertFalse(p.isTerminating()); |
561 |
threadStarted.countDown(); |
562 |
await(done); |
563 |
}}); |
564 |
await(threadStarted); |
565 |
assertFalse(p.isTerminating()); |
566 |
done.countDown(); |
567 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
568 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
569 |
assertTrue(p.isTerminated()); |
570 |
assertFalse(p.isTerminating()); |
571 |
} |
572 |
} |
573 |
|
574 |
/** |
575 |
* getQueue returns the work queue, which contains queued tasks |
576 |
*/ |
577 |
public void testGetQueue() throws InterruptedException { |
578 |
final CountDownLatch done = new CountDownLatch(1); |
579 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
580 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
581 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
582 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
583 |
for (int i = 0; i < tasks.length; i++) { |
584 |
Runnable r = new CheckedRunnable() { |
585 |
public void realRun() throws InterruptedException { |
586 |
threadStarted.countDown(); |
587 |
await(done); |
588 |
}}; |
589 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
590 |
} |
591 |
await(threadStarted); |
592 |
BlockingQueue<Runnable> q = p.getQueue(); |
593 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
594 |
assertFalse(q.contains(tasks[0])); |
595 |
} |
596 |
} |
597 |
|
598 |
/** |
599 |
* remove(task) removes queued task, and fails to remove active task |
600 |
*/ |
601 |
public void testRemove() throws InterruptedException { |
602 |
final CountDownLatch done = new CountDownLatch(1); |
603 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
604 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
605 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
606 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
607 |
for (int i = 0; i < tasks.length; i++) { |
608 |
Runnable r = new CheckedRunnable() { |
609 |
public void realRun() throws InterruptedException { |
610 |
threadStarted.countDown(); |
611 |
await(done); |
612 |
}}; |
613 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
614 |
} |
615 |
await(threadStarted); |
616 |
BlockingQueue<Runnable> q = p.getQueue(); |
617 |
assertFalse(p.remove((Runnable)tasks[0])); |
618 |
assertTrue(q.contains((Runnable)tasks[4])); |
619 |
assertTrue(q.contains((Runnable)tasks[3])); |
620 |
assertTrue(p.remove((Runnable)tasks[4])); |
621 |
assertFalse(p.remove((Runnable)tasks[4])); |
622 |
assertFalse(q.contains((Runnable)tasks[4])); |
623 |
assertTrue(q.contains((Runnable)tasks[3])); |
624 |
assertTrue(p.remove((Runnable)tasks[3])); |
625 |
assertFalse(q.contains((Runnable)tasks[3])); |
626 |
} |
627 |
} |
628 |
|
629 |
/** |
630 |
* purge eventually removes cancelled tasks from the queue |
631 |
*/ |
632 |
public void testPurge() throws InterruptedException { |
633 |
final ScheduledFuture[] tasks = new ScheduledFuture[5]; |
634 |
final Runnable releaser = new Runnable() { public void run() { |
635 |
for (ScheduledFuture task : tasks) |
636 |
if (task != null) task.cancel(true); }}; |
637 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
638 |
try (PoolCleaner cleaner = cleaner(p, releaser)) { |
639 |
for (int i = 0; i < tasks.length; i++) |
640 |
tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), |
641 |
LONG_DELAY_MS, MILLISECONDS); |
642 |
int max = tasks.length; |
643 |
if (tasks[4].cancel(true)) --max; |
644 |
if (tasks[3].cancel(true)) --max; |
645 |
// There must eventually be an interference-free point at |
646 |
// which purge will not fail. (At worst, when queue is empty.) |
647 |
long startTime = System.nanoTime(); |
648 |
do { |
649 |
p.purge(); |
650 |
long count = p.getTaskCount(); |
651 |
if (count == max) |
652 |
return; |
653 |
} while (millisElapsedSince(startTime) < LONG_DELAY_MS); |
654 |
fail("Purge failed to remove cancelled tasks"); |
655 |
} |
656 |
} |
657 |
|
658 |
/** |
659 |
* shutdownNow returns a list containing tasks that were not run, |
660 |
* and those tasks are drained from the queue |
661 |
*/ |
662 |
public void testShutdownNow() throws InterruptedException { |
663 |
final int poolSize = 2; |
664 |
final int count = 5; |
665 |
final AtomicInteger ran = new AtomicInteger(0); |
666 |
final ScheduledThreadPoolExecutor p = |
667 |
new ScheduledThreadPoolExecutor(poolSize); |
668 |
final CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
669 |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
670 |
threadsStarted.countDown(); |
671 |
try { |
672 |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
673 |
} catch (InterruptedException success) {} |
674 |
ran.getAndIncrement(); |
675 |
}}; |
676 |
for (int i = 0; i < count; i++) |
677 |
p.execute(waiter); |
678 |
await(threadsStarted); |
679 |
assertEquals(poolSize, p.getActiveCount()); |
680 |
assertEquals(0, p.getCompletedTaskCount()); |
681 |
final List<Runnable> queuedTasks; |
682 |
try { |
683 |
queuedTasks = p.shutdownNow(); |
684 |
} catch (SecurityException ok) { |
685 |
return; // Allowed in case test doesn't have privs |
686 |
} |
687 |
assertTrue(p.isShutdown()); |
688 |
assertTrue(p.getQueue().isEmpty()); |
689 |
assertEquals(count - poolSize, queuedTasks.size()); |
690 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
691 |
assertTrue(p.isTerminated()); |
692 |
assertEquals(poolSize, ran.get()); |
693 |
assertEquals(poolSize, p.getCompletedTaskCount()); |
694 |
} |
695 |
|
696 |
/** |
697 |
* shutdownNow returns a list containing tasks that were not run, |
698 |
* and those tasks are drained from the queue |
699 |
*/ |
700 |
public void testShutdownNow_delayedTasks() throws InterruptedException { |
701 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
702 |
List<ScheduledFuture> tasks = new ArrayList<>(); |
703 |
for (int i = 0; i < 3; i++) { |
704 |
Runnable r = new NoOpRunnable(); |
705 |
tasks.add(p.schedule(r, 9, SECONDS)); |
706 |
tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS)); |
707 |
tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS)); |
708 |
} |
709 |
if (testImplementationDetails) |
710 |
assertEquals(new HashSet(tasks), new HashSet(p.getQueue())); |
711 |
final List<Runnable> queuedTasks; |
712 |
try { |
713 |
queuedTasks = p.shutdownNow(); |
714 |
} catch (SecurityException ok) { |
715 |
return; // Allowed in case test doesn't have privs |
716 |
} |
717 |
assertTrue(p.isShutdown()); |
718 |
assertTrue(p.getQueue().isEmpty()); |
719 |
if (testImplementationDetails) |
720 |
assertEquals(new HashSet(tasks), new HashSet(queuedTasks)); |
721 |
assertEquals(tasks.size(), queuedTasks.size()); |
722 |
for (ScheduledFuture task : tasks) { |
723 |
assertFalse(task.isDone()); |
724 |
assertFalse(task.isCancelled()); |
725 |
} |
726 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
727 |
assertTrue(p.isTerminated()); |
728 |
} |
729 |
|
730 |
/** |
731 |
* By default, periodic tasks are cancelled at shutdown. |
732 |
* By default, delayed tasks keep running after shutdown. |
733 |
* Check that changing the default values work: |
734 |
* - setExecuteExistingDelayedTasksAfterShutdownPolicy |
735 |
* - setContinueExistingPeriodicTasksAfterShutdownPolicy |
736 |
*/ |
737 |
public void testShutdown_cancellation() throws Exception { |
738 |
Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE }; |
739 |
for (Boolean policy : allBooleans) |
740 |
{ |
741 |
final int poolSize = 2; |
742 |
final ScheduledThreadPoolExecutor p |
743 |
= new ScheduledThreadPoolExecutor(poolSize); |
744 |
final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE); |
745 |
final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE); |
746 |
final boolean effectiveRemovePolicy = (policy == Boolean.TRUE); |
747 |
if (policy != null) { |
748 |
p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy); |
749 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy); |
750 |
p.setRemoveOnCancelPolicy(policy); |
751 |
} |
752 |
assertEquals(effectiveDelayedPolicy, |
753 |
p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
754 |
assertEquals(effectivePeriodicPolicy, |
755 |
p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
756 |
assertEquals(effectiveRemovePolicy, |
757 |
p.getRemoveOnCancelPolicy()); |
758 |
// Strategy: Wedge the pool with poolSize "blocker" threads |
759 |
final AtomicInteger ran = new AtomicInteger(0); |
760 |
final CountDownLatch poolBlocked = new CountDownLatch(poolSize); |
761 |
final CountDownLatch unblock = new CountDownLatch(1); |
762 |
final CountDownLatch periodicLatch1 = new CountDownLatch(2); |
763 |
final CountDownLatch periodicLatch2 = new CountDownLatch(2); |
764 |
Runnable task = new CheckedRunnable() { public void realRun() |
765 |
throws InterruptedException { |
766 |
poolBlocked.countDown(); |
767 |
assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS)); |
768 |
ran.getAndIncrement(); |
769 |
}}; |
770 |
List<Future<?>> blockers = new ArrayList<>(); |
771 |
List<Future<?>> periodics = new ArrayList<>(); |
772 |
List<Future<?>> delayeds = new ArrayList<>(); |
773 |
for (int i = 0; i < poolSize; i++) |
774 |
blockers.add(p.submit(task)); |
775 |
assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS)); |
776 |
|
777 |
periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1), |
778 |
1, 1, MILLISECONDS)); |
779 |
periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2), |
780 |
1, 1, MILLISECONDS)); |
781 |
delayeds.add(p.schedule(task, 1, MILLISECONDS)); |
782 |
|
783 |
assertTrue(p.getQueue().containsAll(periodics)); |
784 |
assertTrue(p.getQueue().containsAll(delayeds)); |
785 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
786 |
assertTrue(p.isShutdown()); |
787 |
assertFalse(p.isTerminated()); |
788 |
for (Future<?> periodic : periodics) { |
789 |
assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled()); |
790 |
assertTrue(effectivePeriodicPolicy ^ periodic.isDone()); |
791 |
} |
792 |
for (Future<?> delayed : delayeds) { |
793 |
assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled()); |
794 |
assertTrue(effectiveDelayedPolicy ^ delayed.isDone()); |
795 |
} |
796 |
if (testImplementationDetails) { |
797 |
assertEquals(effectivePeriodicPolicy, |
798 |
p.getQueue().containsAll(periodics)); |
799 |
assertEquals(effectiveDelayedPolicy, |
800 |
p.getQueue().containsAll(delayeds)); |
801 |
} |
802 |
// Release all pool threads |
803 |
unblock.countDown(); |
804 |
|
805 |
for (Future<?> delayed : delayeds) { |
806 |
if (effectiveDelayedPolicy) { |
807 |
assertNull(delayed.get()); |
808 |
} |
809 |
} |
810 |
if (effectivePeriodicPolicy) { |
811 |
assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS)); |
812 |
assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS)); |
813 |
for (Future<?> periodic : periodics) { |
814 |
assertTrue(periodic.cancel(false)); |
815 |
assertTrue(periodic.isCancelled()); |
816 |
assertTrue(periodic.isDone()); |
817 |
} |
818 |
} |
819 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
820 |
assertTrue(p.isTerminated()); |
821 |
assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get()); |
822 |
}} |
823 |
|
824 |
/** |
825 |
* completed submit of callable returns result |
826 |
*/ |
827 |
public void testSubmitCallable() throws Exception { |
828 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
829 |
try (PoolCleaner cleaner = cleaner(e)) { |
830 |
Future<String> future = e.submit(new StringTask()); |
831 |
String result = future.get(); |
832 |
assertSame(TEST_STRING, result); |
833 |
} |
834 |
} |
835 |
|
836 |
/** |
837 |
* completed submit of runnable returns successfully |
838 |
*/ |
839 |
public void testSubmitRunnable() throws Exception { |
840 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
841 |
try (PoolCleaner cleaner = cleaner(e)) { |
842 |
Future<?> future = e.submit(new NoOpRunnable()); |
843 |
future.get(); |
844 |
assertTrue(future.isDone()); |
845 |
} |
846 |
} |
847 |
|
848 |
/** |
849 |
* completed submit of (runnable, result) returns result |
850 |
*/ |
851 |
public void testSubmitRunnable2() throws Exception { |
852 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
853 |
try (PoolCleaner cleaner = cleaner(e)) { |
854 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
855 |
String result = future.get(); |
856 |
assertSame(TEST_STRING, result); |
857 |
} |
858 |
} |
859 |
|
860 |
/** |
861 |
* invokeAny(null) throws NPE |
862 |
*/ |
863 |
public void testInvokeAny1() throws Exception { |
864 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
865 |
try (PoolCleaner cleaner = cleaner(e)) { |
866 |
try { |
867 |
e.invokeAny(null); |
868 |
shouldThrow(); |
869 |
} catch (NullPointerException success) {} |
870 |
} |
871 |
} |
872 |
|
873 |
/** |
874 |
* invokeAny(empty collection) throws IAE |
875 |
*/ |
876 |
public void testInvokeAny2() throws Exception { |
877 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
878 |
try (PoolCleaner cleaner = cleaner(e)) { |
879 |
try { |
880 |
e.invokeAny(new ArrayList<Callable<String>>()); |
881 |
shouldThrow(); |
882 |
} catch (IllegalArgumentException success) {} |
883 |
} |
884 |
} |
885 |
|
886 |
/** |
887 |
* invokeAny(c) throws NPE if c has null elements |
888 |
*/ |
889 |
public void testInvokeAny3() throws Exception { |
890 |
CountDownLatch latch = new CountDownLatch(1); |
891 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
892 |
try (PoolCleaner cleaner = cleaner(e)) { |
893 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
894 |
l.add(latchAwaitingStringTask(latch)); |
895 |
l.add(null); |
896 |
try { |
897 |
e.invokeAny(l); |
898 |
shouldThrow(); |
899 |
} catch (NullPointerException success) {} |
900 |
latch.countDown(); |
901 |
} |
902 |
} |
903 |
|
904 |
/** |
905 |
* invokeAny(c) throws ExecutionException if no task completes |
906 |
*/ |
907 |
public void testInvokeAny4() throws Exception { |
908 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
909 |
try (PoolCleaner cleaner = cleaner(e)) { |
910 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
911 |
l.add(new NPETask()); |
912 |
try { |
913 |
e.invokeAny(l); |
914 |
shouldThrow(); |
915 |
} catch (ExecutionException success) { |
916 |
assertTrue(success.getCause() instanceof NullPointerException); |
917 |
} |
918 |
} |
919 |
} |
920 |
|
921 |
/** |
922 |
* invokeAny(c) returns result of some task |
923 |
*/ |
924 |
public void testInvokeAny5() throws Exception { |
925 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
926 |
try (PoolCleaner cleaner = cleaner(e)) { |
927 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
928 |
l.add(new StringTask()); |
929 |
l.add(new StringTask()); |
930 |
String result = e.invokeAny(l); |
931 |
assertSame(TEST_STRING, result); |
932 |
} |
933 |
} |
934 |
|
935 |
/** |
936 |
* invokeAll(null) throws NPE |
937 |
*/ |
938 |
public void testInvokeAll1() throws Exception { |
939 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
940 |
try (PoolCleaner cleaner = cleaner(e)) { |
941 |
try { |
942 |
e.invokeAll(null); |
943 |
shouldThrow(); |
944 |
} catch (NullPointerException success) {} |
945 |
} |
946 |
} |
947 |
|
948 |
/** |
949 |
* invokeAll(empty collection) returns empty collection |
950 |
*/ |
951 |
public void testInvokeAll2() throws Exception { |
952 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
953 |
try (PoolCleaner cleaner = cleaner(e)) { |
954 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
955 |
assertTrue(r.isEmpty()); |
956 |
} |
957 |
} |
958 |
|
959 |
/** |
960 |
* invokeAll(c) throws NPE if c has null elements |
961 |
*/ |
962 |
public void testInvokeAll3() throws Exception { |
963 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
964 |
try (PoolCleaner cleaner = cleaner(e)) { |
965 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
966 |
l.add(new StringTask()); |
967 |
l.add(null); |
968 |
try { |
969 |
e.invokeAll(l); |
970 |
shouldThrow(); |
971 |
} catch (NullPointerException success) {} |
972 |
} |
973 |
} |
974 |
|
975 |
/** |
976 |
* get of invokeAll(c) throws exception on failed task |
977 |
*/ |
978 |
public void testInvokeAll4() throws Exception { |
979 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
980 |
try (PoolCleaner cleaner = cleaner(e)) { |
981 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
982 |
l.add(new NPETask()); |
983 |
List<Future<String>> futures = e.invokeAll(l); |
984 |
assertEquals(1, futures.size()); |
985 |
try { |
986 |
futures.get(0).get(); |
987 |
shouldThrow(); |
988 |
} catch (ExecutionException success) { |
989 |
assertTrue(success.getCause() instanceof NullPointerException); |
990 |
} |
991 |
} |
992 |
} |
993 |
|
994 |
/** |
995 |
* invokeAll(c) returns results of all completed tasks |
996 |
*/ |
997 |
public void testInvokeAll5() throws Exception { |
998 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
999 |
try (PoolCleaner cleaner = cleaner(e)) { |
1000 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1001 |
l.add(new StringTask()); |
1002 |
l.add(new StringTask()); |
1003 |
List<Future<String>> futures = e.invokeAll(l); |
1004 |
assertEquals(2, futures.size()); |
1005 |
for (Future<String> future : futures) |
1006 |
assertSame(TEST_STRING, future.get()); |
1007 |
} |
1008 |
} |
1009 |
|
1010 |
/** |
1011 |
* timed invokeAny(null) throws NPE |
1012 |
*/ |
1013 |
public void testTimedInvokeAny1() throws Exception { |
1014 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1015 |
try (PoolCleaner cleaner = cleaner(e)) { |
1016 |
try { |
1017 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1018 |
shouldThrow(); |
1019 |
} catch (NullPointerException success) {} |
1020 |
} |
1021 |
} |
1022 |
|
1023 |
/** |
1024 |
* timed invokeAny(,,null) throws NPE |
1025 |
*/ |
1026 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1027 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1028 |
try (PoolCleaner cleaner = cleaner(e)) { |
1029 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1030 |
l.add(new StringTask()); |
1031 |
try { |
1032 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1033 |
shouldThrow(); |
1034 |
} catch (NullPointerException success) {} |
1035 |
} |
1036 |
} |
1037 |
|
1038 |
/** |
1039 |
* timed invokeAny(empty collection) throws IAE |
1040 |
*/ |
1041 |
public void testTimedInvokeAny2() throws Exception { |
1042 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1043 |
try (PoolCleaner cleaner = cleaner(e)) { |
1044 |
try { |
1045 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1046 |
shouldThrow(); |
1047 |
} catch (IllegalArgumentException success) {} |
1048 |
} |
1049 |
} |
1050 |
|
1051 |
/** |
1052 |
* timed invokeAny(c) throws NPE if c has null elements |
1053 |
*/ |
1054 |
public void testTimedInvokeAny3() throws Exception { |
1055 |
CountDownLatch latch = new CountDownLatch(1); |
1056 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1057 |
try (PoolCleaner cleaner = cleaner(e)) { |
1058 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1059 |
l.add(latchAwaitingStringTask(latch)); |
1060 |
l.add(null); |
1061 |
try { |
1062 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1063 |
shouldThrow(); |
1064 |
} catch (NullPointerException success) {} |
1065 |
latch.countDown(); |
1066 |
} |
1067 |
} |
1068 |
|
1069 |
/** |
1070 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1071 |
*/ |
1072 |
public void testTimedInvokeAny4() throws Exception { |
1073 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1074 |
try (PoolCleaner cleaner = cleaner(e)) { |
1075 |
long startTime = System.nanoTime(); |
1076 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1077 |
l.add(new NPETask()); |
1078 |
try { |
1079 |
e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1080 |
shouldThrow(); |
1081 |
} catch (ExecutionException success) { |
1082 |
assertTrue(success.getCause() instanceof NullPointerException); |
1083 |
} |
1084 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1085 |
} |
1086 |
} |
1087 |
|
1088 |
/** |
1089 |
* timed invokeAny(c) returns result of some task |
1090 |
*/ |
1091 |
public void testTimedInvokeAny5() throws Exception { |
1092 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1093 |
try (PoolCleaner cleaner = cleaner(e)) { |
1094 |
long startTime = System.nanoTime(); |
1095 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1096 |
l.add(new StringTask()); |
1097 |
l.add(new StringTask()); |
1098 |
String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1099 |
assertSame(TEST_STRING, result); |
1100 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1101 |
} |
1102 |
} |
1103 |
|
1104 |
/** |
1105 |
* timed invokeAll(null) throws NPE |
1106 |
*/ |
1107 |
public void testTimedInvokeAll1() throws Exception { |
1108 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1109 |
try (PoolCleaner cleaner = cleaner(e)) { |
1110 |
try { |
1111 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1112 |
shouldThrow(); |
1113 |
} catch (NullPointerException success) {} |
1114 |
} |
1115 |
} |
1116 |
|
1117 |
/** |
1118 |
* timed invokeAll(,,null) throws NPE |
1119 |
*/ |
1120 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1121 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1122 |
try (PoolCleaner cleaner = cleaner(e)) { |
1123 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1124 |
l.add(new StringTask()); |
1125 |
try { |
1126 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1127 |
shouldThrow(); |
1128 |
} catch (NullPointerException success) {} |
1129 |
} |
1130 |
} |
1131 |
|
1132 |
/** |
1133 |
* timed invokeAll(empty collection) returns empty collection |
1134 |
*/ |
1135 |
public void testTimedInvokeAll2() throws Exception { |
1136 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1137 |
try (PoolCleaner cleaner = cleaner(e)) { |
1138 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), |
1139 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1140 |
assertTrue(r.isEmpty()); |
1141 |
} |
1142 |
} |
1143 |
|
1144 |
/** |
1145 |
* timed invokeAll(c) throws NPE if c has null elements |
1146 |
*/ |
1147 |
public void testTimedInvokeAll3() throws Exception { |
1148 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1149 |
try (PoolCleaner cleaner = cleaner(e)) { |
1150 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1151 |
l.add(new StringTask()); |
1152 |
l.add(null); |
1153 |
try { |
1154 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1155 |
shouldThrow(); |
1156 |
} catch (NullPointerException success) {} |
1157 |
} |
1158 |
} |
1159 |
|
1160 |
/** |
1161 |
* get of element of invokeAll(c) throws exception on failed task |
1162 |
*/ |
1163 |
public void testTimedInvokeAll4() throws Exception { |
1164 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1165 |
try (PoolCleaner cleaner = cleaner(e)) { |
1166 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1167 |
l.add(new NPETask()); |
1168 |
List<Future<String>> futures = |
1169 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1170 |
assertEquals(1, futures.size()); |
1171 |
try { |
1172 |
futures.get(0).get(); |
1173 |
shouldThrow(); |
1174 |
} catch (ExecutionException success) { |
1175 |
assertTrue(success.getCause() instanceof NullPointerException); |
1176 |
} |
1177 |
} |
1178 |
} |
1179 |
|
1180 |
/** |
1181 |
* timed invokeAll(c) returns results of all completed tasks |
1182 |
*/ |
1183 |
public void testTimedInvokeAll5() throws Exception { |
1184 |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1185 |
try (PoolCleaner cleaner = cleaner(e)) { |
1186 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1187 |
l.add(new StringTask()); |
1188 |
l.add(new StringTask()); |
1189 |
List<Future<String>> futures = |
1190 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1191 |
assertEquals(2, futures.size()); |
1192 |
for (Future<String> future : futures) |
1193 |
assertSame(TEST_STRING, future.get()); |
1194 |
} |
1195 |
} |
1196 |
|
1197 |
/** |
1198 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1199 |
*/ |
1200 |
public void testTimedInvokeAll6() throws Exception { |
1201 |
for (long timeout = timeoutMillis();;) { |
1202 |
final CountDownLatch done = new CountDownLatch(1); |
1203 |
final Callable<String> waiter = new CheckedCallable<String>() { |
1204 |
public String realCall() { |
1205 |
try { done.await(LONG_DELAY_MS, MILLISECONDS); } |
1206 |
catch (InterruptedException ok) {} |
1207 |
return "1"; }}; |
1208 |
final ExecutorService p = new ScheduledThreadPoolExecutor(2); |
1209 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1210 |
List<Callable<String>> tasks = new ArrayList<>(); |
1211 |
tasks.add(new StringTask("0")); |
1212 |
tasks.add(waiter); |
1213 |
tasks.add(new StringTask("2")); |
1214 |
long startTime = System.nanoTime(); |
1215 |
List<Future<String>> futures = |
1216 |
p.invokeAll(tasks, timeout, MILLISECONDS); |
1217 |
assertEquals(tasks.size(), futures.size()); |
1218 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1219 |
for (Future future : futures) |
1220 |
assertTrue(future.isDone()); |
1221 |
assertTrue(futures.get(1).isCancelled()); |
1222 |
try { |
1223 |
assertEquals("0", futures.get(0).get()); |
1224 |
assertEquals("2", futures.get(2).get()); |
1225 |
break; |
1226 |
} catch (CancellationException retryWithLongerTimeout) { |
1227 |
timeout *= 2; |
1228 |
if (timeout >= LONG_DELAY_MS / 2) |
1229 |
fail("expected exactly one task to be cancelled"); |
1230 |
} |
1231 |
} |
1232 |
} |
1233 |
} |
1234 |
|
1235 |
/** |
1236 |
* A fixed delay task with overflowing period should not prevent a |
1237 |
* one-shot task from executing. |
1238 |
* https://bugs.openjdk.java.net/browse/JDK-8051859 |
1239 |
*/ |
1240 |
public void testScheduleWithFixedDelay_overflow() throws Exception { |
1241 |
final CountDownLatch delayedDone = new CountDownLatch(1); |
1242 |
final CountDownLatch immediateDone = new CountDownLatch(1); |
1243 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
1244 |
try (PoolCleaner cleaner = cleaner(p)) { |
1245 |
final Runnable immediate = new Runnable() { public void run() { |
1246 |
immediateDone.countDown(); |
1247 |
}}; |
1248 |
final Runnable delayed = new Runnable() { public void run() { |
1249 |
delayedDone.countDown(); |
1250 |
p.submit(immediate); |
1251 |
}}; |
1252 |
p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS); |
1253 |
await(delayedDone); |
1254 |
await(immediateDone); |
1255 |
} |
1256 |
} |
1257 |
|
1258 |
} |