11 |
|
import static java.util.concurrent.TimeUnit.SECONDS; |
12 |
|
|
13 |
|
import java.util.ArrayList; |
14 |
+ |
import java.util.Collection; |
15 |
+ |
import java.util.Collections; |
16 |
|
import java.util.List; |
17 |
|
import java.util.concurrent.ArrayBlockingQueue; |
18 |
|
import java.util.concurrent.BlockingQueue; |
20 |
|
import java.util.concurrent.CancellationException; |
21 |
|
import java.util.concurrent.CountDownLatch; |
22 |
|
import java.util.concurrent.ExecutionException; |
21 |
– |
import java.util.concurrent.Executors; |
23 |
|
import java.util.concurrent.ExecutorService; |
24 |
|
import java.util.concurrent.Future; |
25 |
|
import java.util.concurrent.FutureTask; |
28 |
|
import java.util.concurrent.RejectedExecutionHandler; |
29 |
|
import java.util.concurrent.SynchronousQueue; |
30 |
|
import java.util.concurrent.ThreadFactory; |
31 |
+ |
import java.util.concurrent.ThreadLocalRandom; |
32 |
|
import java.util.concurrent.ThreadPoolExecutor; |
33 |
< |
import java.util.concurrent.TimeUnit; |
33 |
> |
import java.util.concurrent.ThreadPoolExecutor.AbortPolicy; |
34 |
> |
import java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy; |
35 |
> |
import java.util.concurrent.ThreadPoolExecutor.DiscardPolicy; |
36 |
> |
import java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy; |
37 |
|
import java.util.concurrent.atomic.AtomicInteger; |
38 |
+ |
import java.util.concurrent.atomic.AtomicReference; |
39 |
|
|
40 |
|
import junit.framework.Test; |
41 |
|
import junit.framework.TestSuite; |
98 |
|
final Runnable task = new CheckedRunnable() { |
99 |
|
public void realRun() { done.countDown(); }}; |
100 |
|
p.execute(task); |
101 |
< |
assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
101 |
> |
await(done); |
102 |
|
} |
103 |
|
} |
104 |
|
|
107 |
|
* thread becomes active |
108 |
|
*/ |
109 |
|
public void testGetActiveCount() throws InterruptedException { |
110 |
+ |
final CountDownLatch done = new CountDownLatch(1); |
111 |
|
final ThreadPoolExecutor p = |
112 |
|
new ThreadPoolExecutor(2, 2, |
113 |
|
LONG_DELAY_MS, MILLISECONDS, |
114 |
|
new ArrayBlockingQueue<Runnable>(10)); |
115 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
115 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
116 |
|
final CountDownLatch threadStarted = new CountDownLatch(1); |
110 |
– |
final CountDownLatch done = new CountDownLatch(1); |
117 |
|
assertEquals(0, p.getActiveCount()); |
118 |
|
p.execute(new CheckedRunnable() { |
119 |
|
public void realRun() throws InterruptedException { |
120 |
|
threadStarted.countDown(); |
121 |
|
assertEquals(1, p.getActiveCount()); |
122 |
< |
done.await(); |
122 |
> |
await(done); |
123 |
|
}}); |
124 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
124 |
> |
await(threadStarted); |
125 |
|
assertEquals(1, p.getActiveCount()); |
120 |
– |
done.countDown(); |
126 |
|
} |
127 |
|
} |
128 |
|
|
192 |
|
public void realRun() throws InterruptedException { |
193 |
|
threadStarted.countDown(); |
194 |
|
assertEquals(0, p.getCompletedTaskCount()); |
195 |
< |
threadProceed.await(); |
195 |
> |
await(threadProceed); |
196 |
|
threadDone.countDown(); |
197 |
|
}}); |
198 |
|
await(threadStarted); |
199 |
|
assertEquals(0, p.getCompletedTaskCount()); |
200 |
|
threadProceed.countDown(); |
201 |
< |
threadDone.await(); |
201 |
> |
await(threadDone); |
202 |
|
long startTime = System.nanoTime(); |
203 |
|
while (p.getCompletedTaskCount() != 1) { |
204 |
|
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
282 |
|
} |
283 |
|
|
284 |
|
/** |
285 |
+ |
* The default rejected execution handler is AbortPolicy. |
286 |
+ |
*/ |
287 |
+ |
public void testDefaultRejectedExecutionHandler() { |
288 |
+ |
final ThreadPoolExecutor p = |
289 |
+ |
new ThreadPoolExecutor(1, 2, |
290 |
+ |
LONG_DELAY_MS, MILLISECONDS, |
291 |
+ |
new ArrayBlockingQueue<Runnable>(10)); |
292 |
+ |
try (PoolCleaner cleaner = cleaner(p)) { |
293 |
+ |
assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy); |
294 |
+ |
} |
295 |
+ |
} |
296 |
+ |
|
297 |
+ |
/** |
298 |
|
* getRejectedExecutionHandler returns handler in constructor if not set |
299 |
|
*/ |
300 |
|
public void testGetRejectedExecutionHandler() { |
347 |
|
*/ |
348 |
|
public void testGetLargestPoolSize() throws InterruptedException { |
349 |
|
final int THREADS = 3; |
350 |
+ |
final CountDownLatch done = new CountDownLatch(1); |
351 |
|
final ThreadPoolExecutor p = |
352 |
|
new ThreadPoolExecutor(THREADS, THREADS, |
353 |
|
LONG_DELAY_MS, MILLISECONDS, |
354 |
|
new ArrayBlockingQueue<Runnable>(10)); |
355 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
337 |
< |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
338 |
< |
final CountDownLatch done = new CountDownLatch(1); |
355 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
356 |
|
assertEquals(0, p.getLargestPoolSize()); |
357 |
+ |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
358 |
|
for (int i = 0; i < THREADS; i++) |
359 |
|
p.execute(new CheckedRunnable() { |
360 |
|
public void realRun() throws InterruptedException { |
361 |
|
threadsStarted.countDown(); |
362 |
< |
done.await(); |
362 |
> |
await(done); |
363 |
|
assertEquals(THREADS, p.getLargestPoolSize()); |
364 |
|
}}); |
365 |
< |
assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
365 |
> |
await(threadsStarted); |
366 |
|
assertEquals(THREADS, p.getLargestPoolSize()); |
349 |
– |
done.countDown(); // release pool |
367 |
|
} |
368 |
|
assertEquals(THREADS, p.getLargestPoolSize()); |
369 |
|
} |
391 |
|
* become active |
392 |
|
*/ |
393 |
|
public void testGetPoolSize() throws InterruptedException { |
394 |
+ |
final CountDownLatch done = new CountDownLatch(1); |
395 |
|
final ThreadPoolExecutor p = |
396 |
|
new ThreadPoolExecutor(1, 1, |
397 |
|
LONG_DELAY_MS, MILLISECONDS, |
398 |
|
new ArrayBlockingQueue<Runnable>(10)); |
399 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
382 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
383 |
< |
final CountDownLatch done = new CountDownLatch(1); |
399 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
400 |
|
assertEquals(0, p.getPoolSize()); |
401 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(1); |
402 |
|
p.execute(new CheckedRunnable() { |
403 |
|
public void realRun() throws InterruptedException { |
404 |
|
threadStarted.countDown(); |
405 |
|
assertEquals(1, p.getPoolSize()); |
406 |
< |
done.await(); |
406 |
> |
await(done); |
407 |
|
}}); |
408 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
408 |
> |
await(threadStarted); |
409 |
|
assertEquals(1, p.getPoolSize()); |
393 |
– |
done.countDown(); // release pool |
410 |
|
} |
411 |
|
} |
412 |
|
|
414 |
|
* getTaskCount increases, but doesn't overestimate, when tasks submitted |
415 |
|
*/ |
416 |
|
public void testGetTaskCount() throws InterruptedException { |
417 |
+ |
final int TASKS = 3; |
418 |
+ |
final CountDownLatch done = new CountDownLatch(1); |
419 |
|
final ThreadPoolExecutor p = |
420 |
|
new ThreadPoolExecutor(1, 1, |
421 |
|
LONG_DELAY_MS, MILLISECONDS, |
422 |
|
new ArrayBlockingQueue<Runnable>(10)); |
423 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
423 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
424 |
|
final CountDownLatch threadStarted = new CountDownLatch(1); |
407 |
– |
final CountDownLatch done = new CountDownLatch(1); |
425 |
|
assertEquals(0, p.getTaskCount()); |
426 |
+ |
assertEquals(0, p.getCompletedTaskCount()); |
427 |
|
p.execute(new CheckedRunnable() { |
428 |
|
public void realRun() throws InterruptedException { |
429 |
|
threadStarted.countDown(); |
430 |
< |
assertEquals(1, p.getTaskCount()); |
413 |
< |
done.await(); |
430 |
> |
await(done); |
431 |
|
}}); |
432 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
432 |
> |
await(threadStarted); |
433 |
|
assertEquals(1, p.getTaskCount()); |
434 |
< |
done.countDown(); |
434 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
435 |
> |
for (int i = 0; i < TASKS; i++) { |
436 |
> |
assertEquals(1 + i, p.getTaskCount()); |
437 |
> |
p.execute(new CheckedRunnable() { |
438 |
> |
public void realRun() throws InterruptedException { |
439 |
> |
threadStarted.countDown(); |
440 |
> |
assertEquals(1 + TASKS, p.getTaskCount()); |
441 |
> |
await(done); |
442 |
> |
}}); |
443 |
> |
} |
444 |
> |
assertEquals(1 + TASKS, p.getTaskCount()); |
445 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
446 |
|
} |
447 |
+ |
assertEquals(1 + TASKS, p.getTaskCount()); |
448 |
+ |
assertEquals(1 + TASKS, p.getCompletedTaskCount()); |
449 |
|
} |
450 |
|
|
451 |
|
/** |
477 |
|
assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
478 |
|
assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
479 |
|
assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
480 |
< |
assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
481 |
< |
assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
480 |
> |
assertFalse(p.awaitTermination(randomExpiredTimeout(), |
481 |
> |
randomTimeUnit())); |
482 |
|
long timeoutNanos = 999999L; |
483 |
|
long startTime = System.nanoTime(); |
484 |
|
assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
511 |
|
public void realRun() throws InterruptedException { |
512 |
|
assertFalse(p.isTerminating()); |
513 |
|
threadStarted.countDown(); |
514 |
< |
done.await(); |
514 |
> |
await(done); |
515 |
|
}}); |
516 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
516 |
> |
await(threadStarted); |
517 |
|
assertFalse(p.isTerminating()); |
518 |
|
done.countDown(); |
519 |
|
try { p.shutdown(); } catch (SecurityException ok) { return; } |
539 |
|
public void realRun() throws InterruptedException { |
540 |
|
assertFalse(p.isTerminating()); |
541 |
|
threadStarted.countDown(); |
542 |
< |
done.await(); |
542 |
> |
await(done); |
543 |
|
}}); |
544 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
544 |
> |
await(threadStarted); |
545 |
|
assertFalse(p.isTerminating()); |
546 |
|
done.countDown(); |
547 |
|
try { p.shutdown(); } catch (SecurityException ok) { return; } |
555 |
|
* getQueue returns the work queue, which contains queued tasks |
556 |
|
*/ |
557 |
|
public void testGetQueue() throws InterruptedException { |
558 |
< |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
558 |
> |
final CountDownLatch done = new CountDownLatch(1); |
559 |
> |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10); |
560 |
|
final ThreadPoolExecutor p = |
561 |
|
new ThreadPoolExecutor(1, 1, |
562 |
|
LONG_DELAY_MS, MILLISECONDS, |
563 |
|
q); |
564 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
564 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
565 |
|
final CountDownLatch threadStarted = new CountDownLatch(1); |
566 |
< |
final CountDownLatch done = new CountDownLatch(1); |
567 |
< |
FutureTask[] tasks = new FutureTask[5]; |
566 |
> |
FutureTask[] rtasks = new FutureTask[5]; |
567 |
> |
@SuppressWarnings("unchecked") |
568 |
> |
FutureTask<Boolean>[] tasks = (FutureTask<Boolean>[])rtasks; |
569 |
|
for (int i = 0; i < tasks.length; i++) { |
570 |
< |
Callable task = new CheckedCallable<Boolean>() { |
570 |
> |
Callable<Boolean> task = new CheckedCallable<Boolean>() { |
571 |
|
public Boolean realCall() throws InterruptedException { |
572 |
|
threadStarted.countDown(); |
573 |
|
assertSame(q, p.getQueue()); |
574 |
< |
done.await(); |
574 |
> |
await(done); |
575 |
|
return Boolean.TRUE; |
576 |
|
}}; |
577 |
< |
tasks[i] = new FutureTask(task); |
577 |
> |
tasks[i] = new FutureTask<Boolean>(task); |
578 |
|
p.execute(tasks[i]); |
579 |
|
} |
580 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
580 |
> |
await(threadStarted); |
581 |
|
assertSame(q, p.getQueue()); |
582 |
|
assertFalse(q.contains(tasks[0])); |
583 |
|
assertTrue(q.contains(tasks[tasks.length - 1])); |
584 |
|
assertEquals(tasks.length - 1, q.size()); |
553 |
– |
done.countDown(); |
585 |
|
} |
586 |
|
} |
587 |
|
|
589 |
|
* remove(task) removes queued task, and fails to remove active task |
590 |
|
*/ |
591 |
|
public void testRemove() throws InterruptedException { |
592 |
< |
BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
592 |
> |
final CountDownLatch done = new CountDownLatch(1); |
593 |
> |
BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10); |
594 |
|
final ThreadPoolExecutor p = |
595 |
|
new ThreadPoolExecutor(1, 1, |
596 |
|
LONG_DELAY_MS, MILLISECONDS, |
597 |
|
q); |
598 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
598 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
599 |
|
Runnable[] tasks = new Runnable[6]; |
600 |
|
final CountDownLatch threadStarted = new CountDownLatch(1); |
569 |
– |
final CountDownLatch done = new CountDownLatch(1); |
601 |
|
for (int i = 0; i < tasks.length; i++) { |
602 |
|
tasks[i] = new CheckedRunnable() { |
603 |
|
public void realRun() throws InterruptedException { |
604 |
|
threadStarted.countDown(); |
605 |
< |
done.await(); |
605 |
> |
await(done); |
606 |
|
}}; |
607 |
|
p.execute(tasks[i]); |
608 |
|
} |
609 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
609 |
> |
await(threadStarted); |
610 |
|
assertFalse(p.remove(tasks[0])); |
611 |
|
assertTrue(q.contains(tasks[4])); |
612 |
|
assertTrue(q.contains(tasks[3])); |
616 |
|
assertTrue(q.contains(tasks[3])); |
617 |
|
assertTrue(p.remove(tasks[3])); |
618 |
|
assertFalse(q.contains(tasks[3])); |
588 |
– |
done.countDown(); |
619 |
|
} |
620 |
|
} |
621 |
|
|
625 |
|
public void testPurge() throws InterruptedException { |
626 |
|
final CountDownLatch threadStarted = new CountDownLatch(1); |
627 |
|
final CountDownLatch done = new CountDownLatch(1); |
628 |
< |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
628 |
> |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10); |
629 |
|
final ThreadPoolExecutor p = |
630 |
|
new ThreadPoolExecutor(1, 1, |
631 |
|
LONG_DELAY_MS, MILLISECONDS, |
632 |
|
q); |
633 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
634 |
< |
FutureTask[] tasks = new FutureTask[5]; |
633 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
634 |
> |
FutureTask[] rtasks = new FutureTask[5]; |
635 |
> |
@SuppressWarnings("unchecked") |
636 |
> |
FutureTask<Boolean>[] tasks = (FutureTask<Boolean>[])rtasks; |
637 |
|
for (int i = 0; i < tasks.length; i++) { |
638 |
< |
Callable task = new CheckedCallable<Boolean>() { |
638 |
> |
Callable<Boolean> task = new CheckedCallable<Boolean>() { |
639 |
|
public Boolean realCall() throws InterruptedException { |
640 |
|
threadStarted.countDown(); |
641 |
< |
done.await(); |
641 |
> |
await(done); |
642 |
|
return Boolean.TRUE; |
643 |
|
}}; |
644 |
< |
tasks[i] = new FutureTask(task); |
644 |
> |
tasks[i] = new FutureTask<Boolean>(task); |
645 |
|
p.execute(tasks[i]); |
646 |
|
} |
647 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
647 |
> |
await(threadStarted); |
648 |
|
assertEquals(tasks.length, p.getTaskCount()); |
649 |
|
assertEquals(tasks.length - 1, q.size()); |
650 |
|
assertEquals(1L, p.getActiveCount()); |
657 |
|
p.purge(); // Nothing to do |
658 |
|
assertEquals(tasks.length - 3, q.size()); |
659 |
|
assertEquals(tasks.length - 2, p.getTaskCount()); |
628 |
– |
done.countDown(); |
660 |
|
} |
661 |
|
} |
662 |
|
|
672 |
|
new ThreadPoolExecutor(poolSize, poolSize, |
673 |
|
LONG_DELAY_MS, MILLISECONDS, |
674 |
|
new ArrayBlockingQueue<Runnable>(10)); |
675 |
< |
CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
675 |
> |
final CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
676 |
|
Runnable waiter = new CheckedRunnable() { public void realRun() { |
677 |
|
threadsStarted.countDown(); |
678 |
|
try { |
679 |
< |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
679 |
> |
MILLISECONDS.sleep(LONGER_DELAY_MS); |
680 |
|
} catch (InterruptedException success) {} |
681 |
|
ran.getAndIncrement(); |
682 |
|
}}; |
683 |
|
for (int i = 0; i < count; i++) |
684 |
|
p.execute(waiter); |
685 |
< |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
685 |
> |
await(threadsStarted); |
686 |
|
assertEquals(poolSize, p.getActiveCount()); |
687 |
|
assertEquals(0, p.getCompletedTaskCount()); |
688 |
|
final List<Runnable> queuedTasks; |
763 |
|
public void testConstructorNullPointerException() { |
764 |
|
try { |
765 |
|
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
766 |
< |
(BlockingQueue) null); |
766 |
> |
(BlockingQueue<Runnable>) null); |
767 |
|
shouldThrow(); |
768 |
|
} catch (NullPointerException success) {} |
769 |
|
} |
834 |
|
public void testConstructorNullPointerException2() { |
835 |
|
try { |
836 |
|
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
837 |
< |
(BlockingQueue) null, |
837 |
> |
(BlockingQueue<Runnable>) null, |
838 |
|
new SimpleThreadFactory()); |
839 |
|
shouldThrow(); |
840 |
|
} catch (NullPointerException success) {} |
918 |
|
public void testConstructorNullPointerException4() { |
919 |
|
try { |
920 |
|
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
921 |
< |
(BlockingQueue) null, |
921 |
> |
(BlockingQueue<Runnable>) null, |
922 |
|
new NoOpREHandler()); |
923 |
|
shouldThrow(); |
924 |
|
} catch (NullPointerException success) {} |
1007 |
|
public void testConstructorNullPointerException6() { |
1008 |
|
try { |
1009 |
|
new ThreadPoolExecutor(1, 2, 1L, SECONDS, |
1010 |
< |
(BlockingQueue) null, |
1010 |
> |
(BlockingQueue<Runnable>) null, |
1011 |
|
new SimpleThreadFactory(), |
1012 |
|
new NoOpREHandler()); |
1013 |
|
shouldThrow(); |
1044 |
|
* get of submitted callable throws InterruptedException if interrupted |
1045 |
|
*/ |
1046 |
|
public void testInterruptedSubmit() throws InterruptedException { |
1047 |
+ |
final CountDownLatch done = new CountDownLatch(1); |
1048 |
|
final ThreadPoolExecutor p = |
1049 |
|
new ThreadPoolExecutor(1, 1, |
1050 |
|
60, SECONDS, |
1051 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1052 |
|
|
1053 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
1053 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1054 |
|
final CountDownLatch threadStarted = new CountDownLatch(1); |
1023 |
– |
final CountDownLatch done = new CountDownLatch(1); |
1055 |
|
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1056 |
|
public void realRun() throws Exception { |
1057 |
< |
Callable task = new CheckedCallable<Boolean>() { |
1057 |
> |
Callable<Boolean> task = new CheckedCallable<Boolean>() { |
1058 |
|
public Boolean realCall() throws InterruptedException { |
1059 |
|
threadStarted.countDown(); |
1060 |
< |
done.await(); |
1060 |
> |
await(done); |
1061 |
|
return Boolean.TRUE; |
1062 |
|
}}; |
1063 |
|
p.submit(task).get(); |
1064 |
|
}}); |
1065 |
|
|
1066 |
< |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
1066 |
> |
await(threadStarted); // ensure quiescence |
1067 |
|
t.interrupt(); |
1068 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
1038 |
< |
done.countDown(); |
1068 |
> |
awaitTermination(t); |
1069 |
|
} |
1070 |
|
} |
1071 |
|
|
1072 |
|
/** |
1073 |
< |
* execute throws RejectedExecutionException if saturated. |
1073 |
> |
* Submitted tasks are rejected when saturated or shutdown |
1074 |
|
*/ |
1075 |
< |
public void testSaturatedExecute() { |
1076 |
< |
final ThreadPoolExecutor p = |
1077 |
< |
new ThreadPoolExecutor(1, 1, |
1078 |
< |
LONG_DELAY_MS, MILLISECONDS, |
1079 |
< |
new ArrayBlockingQueue<Runnable>(1)); |
1080 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
1081 |
< |
final CountDownLatch done = new CountDownLatch(1); |
1082 |
< |
Runnable task = new CheckedRunnable() { |
1083 |
< |
public void realRun() throws InterruptedException { |
1084 |
< |
done.await(); |
1055 |
< |
}}; |
1056 |
< |
for (int i = 0; i < 2; ++i) |
1057 |
< |
p.execute(task); |
1058 |
< |
for (int i = 0; i < 2; ++i) { |
1075 |
> |
public void testSubmittedTasksRejectedWhenSaturatedOrShutdown() throws InterruptedException { |
1076 |
> |
final ThreadPoolExecutor p = new ThreadPoolExecutor( |
1077 |
> |
1, 1, 1, SECONDS, new ArrayBlockingQueue<Runnable>(1)); |
1078 |
> |
final int saturatedSize = saturatedSize(p); |
1079 |
> |
final ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
1080 |
> |
final CountDownLatch threadsStarted = new CountDownLatch(p.getMaximumPoolSize()); |
1081 |
> |
final CountDownLatch done = new CountDownLatch(1); |
1082 |
> |
final Runnable r = () -> { |
1083 |
> |
threadsStarted.countDown(); |
1084 |
> |
for (;;) { |
1085 |
|
try { |
1060 |
– |
p.execute(task); |
1061 |
– |
shouldThrow(); |
1062 |
– |
} catch (RejectedExecutionException success) {} |
1063 |
– |
assertTrue(p.getTaskCount() <= 2); |
1064 |
– |
} |
1065 |
– |
done.countDown(); |
1066 |
– |
} |
1067 |
– |
} |
1068 |
– |
|
1069 |
– |
/** |
1070 |
– |
* submit(runnable) throws RejectedExecutionException if saturated. |
1071 |
– |
*/ |
1072 |
– |
public void testSaturatedSubmitRunnable() { |
1073 |
– |
final ThreadPoolExecutor p = |
1074 |
– |
new ThreadPoolExecutor(1, 1, |
1075 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1076 |
– |
new ArrayBlockingQueue<Runnable>(1)); |
1077 |
– |
try (PoolCleaner cleaner = cleaner(p)) { |
1078 |
– |
final CountDownLatch done = new CountDownLatch(1); |
1079 |
– |
Runnable task = new CheckedRunnable() { |
1080 |
– |
public void realRun() throws InterruptedException { |
1086 |
|
done.await(); |
1087 |
< |
}}; |
1088 |
< |
for (int i = 0; i < 2; ++i) |
1089 |
< |
p.submit(task); |
1090 |
< |
for (int i = 0; i < 2; ++i) { |
1087 |
> |
return; |
1088 |
> |
} catch (InterruptedException shutdownNowDeliberatelyIgnored) {} |
1089 |
> |
}}; |
1090 |
> |
final Callable<Boolean> c = () -> { |
1091 |
> |
threadsStarted.countDown(); |
1092 |
> |
for (;;) { |
1093 |
|
try { |
1087 |
– |
p.execute(task); |
1088 |
– |
shouldThrow(); |
1089 |
– |
} catch (RejectedExecutionException success) {} |
1090 |
– |
assertTrue(p.getTaskCount() <= 2); |
1091 |
– |
} |
1092 |
– |
done.countDown(); |
1093 |
– |
} |
1094 |
– |
} |
1095 |
– |
|
1096 |
– |
/** |
1097 |
– |
* submit(callable) throws RejectedExecutionException if saturated. |
1098 |
– |
*/ |
1099 |
– |
public void testSaturatedSubmitCallable() { |
1100 |
– |
final ThreadPoolExecutor p = |
1101 |
– |
new ThreadPoolExecutor(1, 1, |
1102 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1103 |
– |
new ArrayBlockingQueue<Runnable>(1)); |
1104 |
– |
try (PoolCleaner cleaner = cleaner(p)) { |
1105 |
– |
final CountDownLatch done = new CountDownLatch(1); |
1106 |
– |
Runnable task = new CheckedRunnable() { |
1107 |
– |
public void realRun() throws InterruptedException { |
1094 |
|
done.await(); |
1095 |
< |
}}; |
1096 |
< |
for (int i = 0; i < 2; ++i) |
1097 |
< |
p.submit(Executors.callable(task)); |
1098 |
< |
for (int i = 0; i < 2; ++i) { |
1099 |
< |
try { |
1100 |
< |
p.execute(task); |
1101 |
< |
shouldThrow(); |
1102 |
< |
} catch (RejectedExecutionException success) {} |
1103 |
< |
assertTrue(p.getTaskCount() <= 2); |
1095 |
> |
return Boolean.TRUE; |
1096 |
> |
} catch (InterruptedException shutdownNowDeliberatelyIgnored) {} |
1097 |
> |
}}; |
1098 |
> |
final boolean shutdownNow = rnd.nextBoolean(); |
1099 |
> |
|
1100 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1101 |
> |
// saturate |
1102 |
> |
for (int i = saturatedSize; i--> 0; ) { |
1103 |
> |
switch (rnd.nextInt(4)) { |
1104 |
> |
case 0: p.execute(r); break; |
1105 |
> |
case 1: assertFalse(p.submit(r).isDone()); break; |
1106 |
> |
case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break; |
1107 |
> |
case 3: assertFalse(p.submit(c).isDone()); break; |
1108 |
> |
} |
1109 |
|
} |
1119 |
– |
done.countDown(); |
1120 |
– |
} |
1121 |
– |
} |
1110 |
|
|
1111 |
< |
/** |
1112 |
< |
* executor using CallerRunsPolicy runs task if saturated. |
1125 |
< |
*/ |
1126 |
< |
public void testSaturatedExecute2() { |
1127 |
< |
final ThreadPoolExecutor p = |
1128 |
< |
new ThreadPoolExecutor(1, 1, |
1129 |
< |
LONG_DELAY_MS, |
1130 |
< |
MILLISECONDS, |
1131 |
< |
new ArrayBlockingQueue<Runnable>(1), |
1132 |
< |
new ThreadPoolExecutor.CallerRunsPolicy()); |
1133 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
1134 |
< |
final CountDownLatch done = new CountDownLatch(1); |
1135 |
< |
Runnable blocker = new CheckedRunnable() { |
1136 |
< |
public void realRun() throws InterruptedException { |
1137 |
< |
done.await(); |
1138 |
< |
}}; |
1139 |
< |
p.execute(blocker); |
1140 |
< |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1141 |
< |
for (int i = 0; i < tasks.length; i++) |
1142 |
< |
tasks[i] = new TrackedNoOpRunnable(); |
1143 |
< |
for (int i = 0; i < tasks.length; i++) |
1144 |
< |
p.execute(tasks[i]); |
1145 |
< |
for (int i = 1; i < tasks.length; i++) |
1146 |
< |
assertTrue(tasks[i].done); |
1147 |
< |
assertFalse(tasks[0].done); // waiting in queue |
1148 |
< |
done.countDown(); |
1149 |
< |
} |
1150 |
< |
} |
1111 |
> |
await(threadsStarted); |
1112 |
> |
assertTaskSubmissionsAreRejected(p); |
1113 |
|
|
1114 |
< |
/** |
1115 |
< |
* executor using DiscardPolicy drops task if saturated. |
1116 |
< |
*/ |
1117 |
< |
public void testSaturatedExecute3() { |
1118 |
< |
final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1119 |
< |
for (int i = 0; i < tasks.length; ++i) |
1120 |
< |
tasks[i] = new TrackedNoOpRunnable(); |
1159 |
< |
final ThreadPoolExecutor p = |
1160 |
< |
new ThreadPoolExecutor(1, 1, |
1161 |
< |
LONG_DELAY_MS, MILLISECONDS, |
1162 |
< |
new ArrayBlockingQueue<Runnable>(1), |
1163 |
< |
new ThreadPoolExecutor.DiscardPolicy()); |
1164 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
1165 |
< |
final CountDownLatch done = new CountDownLatch(1); |
1166 |
< |
p.execute(awaiter(done)); |
1114 |
> |
if (shutdownNow) |
1115 |
> |
p.shutdownNow(); |
1116 |
> |
else |
1117 |
> |
p.shutdown(); |
1118 |
> |
// Pool is shutdown, but not yet terminated |
1119 |
> |
assertTaskSubmissionsAreRejected(p); |
1120 |
> |
assertFalse(p.isTerminated()); |
1121 |
|
|
1122 |
< |
for (TrackedNoOpRunnable task : tasks) |
1123 |
< |
p.execute(task); |
1124 |
< |
for (int i = 1; i < tasks.length; i++) |
1125 |
< |
assertFalse(tasks[i].done); |
1172 |
< |
done.countDown(); |
1122 |
> |
done.countDown(); // release blocking tasks |
1123 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
1124 |
> |
|
1125 |
> |
assertTaskSubmissionsAreRejected(p); |
1126 |
|
} |
1127 |
< |
for (int i = 1; i < tasks.length; i++) |
1128 |
< |
assertFalse(tasks[i].done); |
1129 |
< |
assertTrue(tasks[0].done); // was waiting in queue |
1127 |
> |
assertEquals(saturatedSize(p) |
1128 |
> |
- (shutdownNow ? p.getQueue().remainingCapacity() : 0), |
1129 |
> |
p.getCompletedTaskCount()); |
1130 |
|
} |
1131 |
|
|
1132 |
|
/** |
1133 |
|
* executor using DiscardOldestPolicy drops oldest task if saturated. |
1134 |
|
*/ |
1135 |
< |
public void testSaturatedExecute4() { |
1135 |
> |
public void testSaturatedExecute_DiscardOldestPolicy() { |
1136 |
|
final CountDownLatch done = new CountDownLatch(1); |
1137 |
|
LatchAwaiter r1 = awaiter(done); |
1138 |
|
LatchAwaiter r2 = awaiter(done); |
1141 |
|
new ThreadPoolExecutor(1, 1, |
1142 |
|
LONG_DELAY_MS, MILLISECONDS, |
1143 |
|
new ArrayBlockingQueue<Runnable>(1), |
1144 |
< |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1145 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
1144 |
> |
new DiscardOldestPolicy()); |
1145 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1146 |
|
assertEquals(LatchAwaiter.NEW, r1.state); |
1147 |
|
assertEquals(LatchAwaiter.NEW, r2.state); |
1148 |
|
assertEquals(LatchAwaiter.NEW, r3.state); |
1152 |
|
p.execute(r3); |
1153 |
|
assertFalse(p.getQueue().contains(r2)); |
1154 |
|
assertTrue(p.getQueue().contains(r3)); |
1202 |
– |
done.countDown(); |
1155 |
|
} |
1156 |
|
assertEquals(LatchAwaiter.DONE, r1.state); |
1157 |
|
assertEquals(LatchAwaiter.NEW, r2.state); |
1159 |
|
} |
1160 |
|
|
1161 |
|
/** |
1210 |
– |
* execute throws RejectedExecutionException if shutdown |
1211 |
– |
*/ |
1212 |
– |
public void testRejectedExecutionExceptionOnShutdown() { |
1213 |
– |
final ThreadPoolExecutor p = |
1214 |
– |
new ThreadPoolExecutor(1, 1, |
1215 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1216 |
– |
new ArrayBlockingQueue<Runnable>(1)); |
1217 |
– |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1218 |
– |
try (PoolCleaner cleaner = cleaner(p)) { |
1219 |
– |
try { |
1220 |
– |
p.execute(new NoOpRunnable()); |
1221 |
– |
shouldThrow(); |
1222 |
– |
} catch (RejectedExecutionException success) {} |
1223 |
– |
} |
1224 |
– |
} |
1225 |
– |
|
1226 |
– |
/** |
1227 |
– |
* execute using CallerRunsPolicy drops task on shutdown |
1228 |
– |
*/ |
1229 |
– |
public void testCallerRunsOnShutdown() { |
1230 |
– |
RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
1231 |
– |
final ThreadPoolExecutor p = |
1232 |
– |
new ThreadPoolExecutor(1, 1, |
1233 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1234 |
– |
new ArrayBlockingQueue<Runnable>(1), h); |
1235 |
– |
|
1236 |
– |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1237 |
– |
try (PoolCleaner cleaner = cleaner(p)) { |
1238 |
– |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1239 |
– |
p.execute(r); |
1240 |
– |
assertFalse(r.done); |
1241 |
– |
} |
1242 |
– |
} |
1243 |
– |
|
1244 |
– |
/** |
1245 |
– |
* execute using DiscardPolicy drops task on shutdown |
1246 |
– |
*/ |
1247 |
– |
public void testDiscardOnShutdown() { |
1248 |
– |
final ThreadPoolExecutor p = |
1249 |
– |
new ThreadPoolExecutor(1, 1, |
1250 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1251 |
– |
new ArrayBlockingQueue<Runnable>(1), |
1252 |
– |
new ThreadPoolExecutor.DiscardPolicy()); |
1253 |
– |
|
1254 |
– |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1255 |
– |
try (PoolCleaner cleaner = cleaner(p)) { |
1256 |
– |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1257 |
– |
p.execute(r); |
1258 |
– |
assertFalse(r.done); |
1259 |
– |
} |
1260 |
– |
} |
1261 |
– |
|
1262 |
– |
/** |
1162 |
|
* execute using DiscardOldestPolicy drops task on shutdown |
1163 |
|
*/ |
1164 |
|
public void testDiscardOldestOnShutdown() { |
1166 |
|
new ThreadPoolExecutor(1, 1, |
1167 |
|
LONG_DELAY_MS, MILLISECONDS, |
1168 |
|
new ArrayBlockingQueue<Runnable>(1), |
1169 |
< |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1169 |
> |
new DiscardOldestPolicy()); |
1170 |
|
|
1171 |
|
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1172 |
|
try (PoolCleaner cleaner = cleaner(p)) { |
1177 |
|
} |
1178 |
|
|
1179 |
|
/** |
1180 |
< |
* execute(null) throws NPE |
1180 |
> |
* Submitting null tasks throws NullPointerException |
1181 |
|
*/ |
1182 |
< |
public void testExecuteNull() { |
1182 |
> |
public void testNullTaskSubmission() { |
1183 |
|
final ThreadPoolExecutor p = |
1184 |
|
new ThreadPoolExecutor(1, 2, |
1185 |
|
1L, SECONDS, |
1186 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1187 |
|
try (PoolCleaner cleaner = cleaner(p)) { |
1188 |
< |
try { |
1290 |
< |
p.execute(null); |
1291 |
< |
shouldThrow(); |
1292 |
< |
} catch (NullPointerException success) {} |
1188 |
> |
assertNullTaskSubmissionThrowsNullPointerException(p); |
1189 |
|
} |
1190 |
|
} |
1191 |
|
|
1377 |
|
} |
1378 |
|
|
1379 |
|
/** |
1380 |
< |
* invokeAny(empty collection) throws IAE |
1380 |
> |
* invokeAny(empty collection) throws IllegalArgumentException |
1381 |
|
*/ |
1382 |
|
public void testInvokeAny2() throws Exception { |
1383 |
|
final ExecutorService e = |
1402 |
|
LONG_DELAY_MS, MILLISECONDS, |
1403 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1404 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1405 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1405 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1406 |
|
l.add(latchAwaitingStringTask(latch)); |
1407 |
|
l.add(null); |
1408 |
|
try { |
1422 |
|
LONG_DELAY_MS, MILLISECONDS, |
1423 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1424 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1425 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1425 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1426 |
|
l.add(new NPETask()); |
1427 |
|
try { |
1428 |
|
e.invokeAny(l); |
1442 |
|
LONG_DELAY_MS, MILLISECONDS, |
1443 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1444 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1445 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1445 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1446 |
|
l.add(new StringTask()); |
1447 |
|
l.add(new StringTask()); |
1448 |
|
String result = e.invokeAny(l); |
1467 |
|
} |
1468 |
|
|
1469 |
|
/** |
1470 |
< |
* invokeAll(empty collection) returns empty collection |
1470 |
> |
* invokeAll(empty collection) returns empty list |
1471 |
|
*/ |
1472 |
|
public void testInvokeAll2() throws InterruptedException { |
1473 |
|
final ExecutorService e = |
1474 |
|
new ThreadPoolExecutor(2, 2, |
1475 |
|
LONG_DELAY_MS, MILLISECONDS, |
1476 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1477 |
+ |
final Collection<Callable<String>> emptyCollection |
1478 |
+ |
= Collections.emptyList(); |
1479 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1480 |
< |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
1480 |
> |
List<Future<String>> r = e.invokeAll(emptyCollection); |
1481 |
|
assertTrue(r.isEmpty()); |
1482 |
|
} |
1483 |
|
} |
1491 |
|
LONG_DELAY_MS, MILLISECONDS, |
1492 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1493 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1494 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1494 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1495 |
|
l.add(new StringTask()); |
1496 |
|
l.add(null); |
1497 |
|
try { |
1510 |
|
LONG_DELAY_MS, MILLISECONDS, |
1511 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1512 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1513 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1513 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1514 |
|
l.add(new NPETask()); |
1515 |
|
List<Future<String>> futures = e.invokeAll(l); |
1516 |
|
assertEquals(1, futures.size()); |
1532 |
|
LONG_DELAY_MS, MILLISECONDS, |
1533 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1534 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1535 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1535 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1536 |
|
l.add(new StringTask()); |
1537 |
|
l.add(new StringTask()); |
1538 |
|
List<Future<String>> futures = e.invokeAll(l); |
1552 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1553 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1554 |
|
try { |
1555 |
< |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1555 |
> |
e.invokeAny(null, randomTimeout(), randomTimeUnit()); |
1556 |
|
shouldThrow(); |
1557 |
|
} catch (NullPointerException success) {} |
1558 |
|
} |
1567 |
|
LONG_DELAY_MS, MILLISECONDS, |
1568 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1569 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1570 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1570 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1571 |
|
l.add(new StringTask()); |
1572 |
|
try { |
1573 |
< |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1573 |
> |
e.invokeAny(l, randomTimeout(), null); |
1574 |
|
shouldThrow(); |
1575 |
|
} catch (NullPointerException success) {} |
1576 |
|
} |
1577 |
|
} |
1578 |
|
|
1579 |
|
/** |
1580 |
< |
* timed invokeAny(empty collection) throws IAE |
1580 |
> |
* timed invokeAny(empty collection) throws IllegalArgumentException |
1581 |
|
*/ |
1582 |
|
public void testTimedInvokeAny2() throws Exception { |
1583 |
|
final ExecutorService e = |
1587 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1588 |
|
try { |
1589 |
|
e.invokeAny(new ArrayList<Callable<String>>(), |
1590 |
< |
MEDIUM_DELAY_MS, MILLISECONDS); |
1590 |
> |
randomTimeout(), randomTimeUnit()); |
1591 |
|
shouldThrow(); |
1592 |
|
} catch (IllegalArgumentException success) {} |
1593 |
|
} |
1594 |
|
} |
1595 |
|
|
1596 |
|
/** |
1597 |
< |
* timed invokeAny(c) throws NPE if c has null elements |
1597 |
> |
* timed invokeAny(c) throws NullPointerException if c has null elements |
1598 |
|
*/ |
1599 |
|
public void testTimedInvokeAny3() throws Exception { |
1600 |
|
final CountDownLatch latch = new CountDownLatch(1); |
1603 |
|
LONG_DELAY_MS, MILLISECONDS, |
1604 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1605 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1606 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1606 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1607 |
|
l.add(latchAwaitingStringTask(latch)); |
1608 |
|
l.add(null); |
1609 |
|
try { |
1610 |
< |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1610 |
> |
e.invokeAny(l, randomTimeout(), randomTimeUnit()); |
1611 |
|
shouldThrow(); |
1612 |
|
} catch (NullPointerException success) {} |
1613 |
|
latch.countDown(); |
1623 |
|
LONG_DELAY_MS, MILLISECONDS, |
1624 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1625 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1626 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1626 |
> |
long startTime = System.nanoTime(); |
1627 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1628 |
|
l.add(new NPETask()); |
1629 |
|
try { |
1630 |
< |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1630 |
> |
e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1631 |
|
shouldThrow(); |
1632 |
|
} catch (ExecutionException success) { |
1633 |
|
assertTrue(success.getCause() instanceof NullPointerException); |
1634 |
|
} |
1635 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1636 |
|
} |
1637 |
|
} |
1638 |
|
|
1645 |
|
LONG_DELAY_MS, MILLISECONDS, |
1646 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1647 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1648 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1648 |
> |
long startTime = System.nanoTime(); |
1649 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1650 |
|
l.add(new StringTask()); |
1651 |
|
l.add(new StringTask()); |
1652 |
< |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1652 |
> |
String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1653 |
|
assertSame(TEST_STRING, result); |
1654 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1655 |
|
} |
1656 |
|
} |
1657 |
|
|
1665 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1666 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1667 |
|
try { |
1668 |
< |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1668 |
> |
e.invokeAll(null, randomTimeout(), randomTimeUnit()); |
1669 |
|
shouldThrow(); |
1670 |
|
} catch (NullPointerException success) {} |
1671 |
|
} |
1680 |
|
LONG_DELAY_MS, MILLISECONDS, |
1681 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1682 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1683 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1683 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1684 |
|
l.add(new StringTask()); |
1685 |
|
try { |
1686 |
< |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1686 |
> |
e.invokeAll(l, randomTimeout(), null); |
1687 |
|
shouldThrow(); |
1688 |
|
} catch (NullPointerException success) {} |
1689 |
|
} |
1690 |
|
} |
1691 |
|
|
1692 |
|
/** |
1693 |
< |
* timed invokeAll(empty collection) returns empty collection |
1693 |
> |
* timed invokeAll(empty collection) returns empty list |
1694 |
|
*/ |
1695 |
|
public void testTimedInvokeAll2() throws InterruptedException { |
1696 |
|
final ExecutorService e = |
1697 |
|
new ThreadPoolExecutor(2, 2, |
1698 |
|
LONG_DELAY_MS, MILLISECONDS, |
1699 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1700 |
+ |
final Collection<Callable<String>> emptyCollection |
1701 |
+ |
= Collections.emptyList(); |
1702 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1703 |
< |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), |
1704 |
< |
MEDIUM_DELAY_MS, MILLISECONDS); |
1703 |
> |
List<Future<String>> r = |
1704 |
> |
e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit()); |
1705 |
|
assertTrue(r.isEmpty()); |
1706 |
|
} |
1707 |
|
} |
1715 |
|
LONG_DELAY_MS, MILLISECONDS, |
1716 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1717 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1718 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1718 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1719 |
|
l.add(new StringTask()); |
1720 |
|
l.add(null); |
1721 |
|
try { |
1722 |
< |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1722 |
> |
e.invokeAll(l, randomTimeout(), randomTimeUnit()); |
1723 |
|
shouldThrow(); |
1724 |
|
} catch (NullPointerException success) {} |
1725 |
|
} |
1734 |
|
LONG_DELAY_MS, MILLISECONDS, |
1735 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1736 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1737 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1737 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1738 |
|
l.add(new NPETask()); |
1739 |
|
List<Future<String>> futures = |
1740 |
< |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1740 |
> |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1741 |
|
assertEquals(1, futures.size()); |
1742 |
|
try { |
1743 |
|
futures.get(0).get(); |
1757 |
|
LONG_DELAY_MS, MILLISECONDS, |
1758 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1759 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1760 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1760 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1761 |
|
l.add(new StringTask()); |
1762 |
|
l.add(new StringTask()); |
1763 |
|
List<Future<String>> futures = |
1772 |
|
* timed invokeAll(c) cancels tasks not completed by timeout |
1773 |
|
*/ |
1774 |
|
public void testTimedInvokeAll6() throws Exception { |
1775 |
< |
final ExecutorService e = |
1776 |
< |
new ThreadPoolExecutor(2, 2, |
1777 |
< |
LONG_DELAY_MS, MILLISECONDS, |
1778 |
< |
new ArrayBlockingQueue<Runnable>(10)); |
1779 |
< |
try (PoolCleaner cleaner = cleaner(e)) { |
1780 |
< |
for (long timeout = timeoutMillis();;) { |
1775 |
> |
for (long timeout = timeoutMillis();;) { |
1776 |
> |
final CountDownLatch done = new CountDownLatch(1); |
1777 |
> |
final Callable<String> waiter = new CheckedCallable<String>() { |
1778 |
> |
public String realCall() { |
1779 |
> |
try { done.await(LONG_DELAY_MS, MILLISECONDS); } |
1780 |
> |
catch (InterruptedException ok) {} |
1781 |
> |
return "1"; }}; |
1782 |
> |
final ExecutorService p = |
1783 |
> |
new ThreadPoolExecutor(2, 2, |
1784 |
> |
LONG_DELAY_MS, MILLISECONDS, |
1785 |
> |
new ArrayBlockingQueue<Runnable>(10)); |
1786 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1787 |
|
List<Callable<String>> tasks = new ArrayList<>(); |
1788 |
|
tasks.add(new StringTask("0")); |
1789 |
< |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1789 |
> |
tasks.add(waiter); |
1790 |
|
tasks.add(new StringTask("2")); |
1791 |
|
long startTime = System.nanoTime(); |
1792 |
|
List<Future<String>> futures = |
1793 |
< |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1793 |
> |
p.invokeAll(tasks, timeout, MILLISECONDS); |
1794 |
|
assertEquals(tasks.size(), futures.size()); |
1795 |
|
assertTrue(millisElapsedSince(startTime) >= timeout); |
1796 |
< |
for (Future future : futures) |
1796 |
> |
for (Future<?> future : futures) |
1797 |
|
assertTrue(future.isDone()); |
1798 |
|
assertTrue(futures.get(1).isCancelled()); |
1799 |
|
try { |
1827 |
|
public void realRun() { |
1828 |
|
done.countDown(); |
1829 |
|
}}); |
1830 |
< |
assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
1830 |
> |
await(done); |
1831 |
|
} |
1832 |
|
} |
1833 |
|
|
1908 |
|
final ThreadPoolExecutor p = |
1909 |
|
new ThreadPoolExecutor(1, 30, |
1910 |
|
60, SECONDS, |
1911 |
< |
new ArrayBlockingQueue(30)); |
1911 |
> |
new ArrayBlockingQueue<Runnable>(30)); |
1912 |
|
try (PoolCleaner cleaner = cleaner(p)) { |
1913 |
|
for (int i = 0; i < nTasks; ++i) { |
1914 |
|
for (;;) { |
1920 |
|
} |
1921 |
|
} |
1922 |
|
// enough time to run all tasks |
1923 |
< |
assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS)); |
1923 |
> |
await(done, nTasks * SHORT_DELAY_MS); |
1924 |
|
} |
1925 |
|
} |
1926 |
|
|
1928 |
|
* get(cancelled task) throws CancellationException |
1929 |
|
*/ |
1930 |
|
public void testGet_cancelled() throws Exception { |
1931 |
+ |
final CountDownLatch done = new CountDownLatch(1); |
1932 |
|
final ExecutorService e = |
1933 |
|
new ThreadPoolExecutor(1, 1, |
1934 |
|
LONG_DELAY_MS, MILLISECONDS, |
1935 |
|
new LinkedBlockingQueue<Runnable>()); |
1936 |
< |
try (PoolCleaner cleaner = cleaner(e)) { |
1936 |
> |
try (PoolCleaner cleaner = cleaner(e, done)) { |
1937 |
|
final CountDownLatch blockerStarted = new CountDownLatch(1); |
2027 |
– |
final CountDownLatch done = new CountDownLatch(1); |
1938 |
|
final List<Future<?>> futures = new ArrayList<>(); |
1939 |
|
for (int i = 0; i < 2; i++) { |
1940 |
|
Runnable r = new CheckedRunnable() { public void realRun() |
1944 |
|
}}; |
1945 |
|
futures.add(e.submit(r)); |
1946 |
|
} |
1947 |
< |
assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
1947 |
> |
await(blockerStarted); |
1948 |
|
for (Future<?> future : futures) future.cancel(false); |
1949 |
|
for (Future<?> future : futures) { |
1950 |
|
try { |
1958 |
|
assertTrue(future.isCancelled()); |
1959 |
|
assertTrue(future.isDone()); |
1960 |
|
} |
1961 |
< |
done.countDown(); |
1961 |
> |
} |
1962 |
> |
} |
1963 |
> |
|
1964 |
> |
/** Directly test simple ThreadPoolExecutor RejectedExecutionHandlers. */ |
1965 |
> |
public void testStandardRejectedExecutionHandlers() { |
1966 |
> |
final ThreadPoolExecutor p = |
1967 |
> |
new ThreadPoolExecutor(1, 1, 1, SECONDS, |
1968 |
> |
new ArrayBlockingQueue<Runnable>(1)); |
1969 |
> |
final AtomicReference<Thread> thread = new AtomicReference<>(); |
1970 |
> |
final Runnable r = new Runnable() { public void run() { |
1971 |
> |
thread.set(Thread.currentThread()); }}; |
1972 |
> |
|
1973 |
> |
try { |
1974 |
> |
new AbortPolicy().rejectedExecution(r, p); |
1975 |
> |
shouldThrow(); |
1976 |
> |
} catch (RejectedExecutionException success) {} |
1977 |
> |
assertNull(thread.get()); |
1978 |
> |
|
1979 |
> |
new DiscardPolicy().rejectedExecution(r, p); |
1980 |
> |
assertNull(thread.get()); |
1981 |
> |
|
1982 |
> |
new CallerRunsPolicy().rejectedExecution(r, p); |
1983 |
> |
assertSame(Thread.currentThread(), thread.get()); |
1984 |
> |
|
1985 |
> |
// check that pool was not perturbed by handlers |
1986 |
> |
assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy); |
1987 |
> |
assertEquals(0, p.getTaskCount()); |
1988 |
> |
assertTrue(p.getQueue().isEmpty()); |
1989 |
> |
} |
1990 |
> |
|
1991 |
> |
public void testThreadFactoryReturnsTerminatedThread_shouldThrow() { |
1992 |
> |
if (!testImplementationDetails) |
1993 |
> |
return; |
1994 |
> |
|
1995 |
> |
ThreadFactory returnsTerminatedThread = runnableIgnored -> { |
1996 |
> |
Thread thread = new Thread(() -> {}); |
1997 |
> |
thread.start(); |
1998 |
> |
try { thread.join(); } |
1999 |
> |
catch (InterruptedException ex) { throw new Error(ex); } |
2000 |
> |
return thread; |
2001 |
> |
}; |
2002 |
> |
ThreadPoolExecutor p = |
2003 |
> |
new ThreadPoolExecutor(1, 1, 1, SECONDS, |
2004 |
> |
new ArrayBlockingQueue<Runnable>(1), |
2005 |
> |
returnsTerminatedThread); |
2006 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
2007 |
> |
assertThrows(IllegalThreadStateException.class, |
2008 |
> |
() -> p.execute(() -> {})); |
2009 |
> |
} |
2010 |
> |
} |
2011 |
> |
|
2012 |
> |
public void testThreadFactoryReturnsStartedThread_shouldThrow() { |
2013 |
> |
if (!testImplementationDetails) |
2014 |
> |
return; |
2015 |
> |
|
2016 |
> |
CountDownLatch latch = new CountDownLatch(1); |
2017 |
> |
Runnable awaitLatch = () -> { |
2018 |
> |
try { latch.await(); } |
2019 |
> |
catch (InterruptedException ex) { throw new Error(ex); }}; |
2020 |
> |
ThreadFactory returnsStartedThread = runnable -> { |
2021 |
> |
Thread thread = new Thread(awaitLatch); |
2022 |
> |
thread.start(); |
2023 |
> |
return thread; |
2024 |
> |
}; |
2025 |
> |
ThreadPoolExecutor p = |
2026 |
> |
new ThreadPoolExecutor(1, 1, 1, SECONDS, |
2027 |
> |
new ArrayBlockingQueue<Runnable>(1), |
2028 |
> |
returnsStartedThread); |
2029 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
2030 |
> |
assertThrows(IllegalThreadStateException.class, |
2031 |
> |
() -> p.execute(() -> {})); |
2032 |
> |
latch.countDown(); |
2033 |
|
} |
2034 |
|
} |
2035 |
|
|