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root/jsr166/jsr166/src/test/tck/ForkJoinTask8Test.java

Comparing jsr166/src/test/tck/ForkJoinTask8Test.java (file contents):
Revision 1.11 by jsr166, Sat Feb 7 19:24:47 2015 UTC vs.
Revision 1.22 by dl, Thu Oct 8 23:02:21 2015 UTC

#	Line 7 | Line 7
7		import static java.util.concurrent.TimeUnit.MILLISECONDS;
8		import static java.util.concurrent.TimeUnit.SECONDS;
9
10	<	import java.util.HashSet;
10	>	import java.util.Arrays;
11	>	import java.util.Collections;
12	>	import java.util.concurrent.CountDownLatch;
13		import java.util.concurrent.ExecutionException;
14		import java.util.concurrent.ForkJoinPool;
15		import java.util.concurrent.ForkJoinTask;
16	+	import java.util.concurrent.ForkJoinWorkerThread;
17		import java.util.concurrent.RecursiveAction;
18		import java.util.concurrent.TimeoutException;
19
#	Line 34 | Line 37 | public class ForkJoinTask8Test extends J
37		static final short EXCEPTION_STATE = 1;
38
39		public static void main(String[] args) {
40	<	junit.textui.TestRunner.run(suite());
40	>	main(suite(), args);
41		}
42
43		public static Test suite() {
#	Line 59 | Line 62 | public class ForkJoinTask8Test extends J
62		null, true);
63		}
64
65	+	// Compute fib naively and efficiently
66	+	final int[] fib;
67	+	{
68	+	int[] fib = new int[10];
69	+	fib[0] = 0;
70	+	fib[1] = 1;
71	+	for (int i = 2; i < fib.length; i++)
72	+	fib[i] = fib[i - 1] + fib[i - 2];
73	+	this.fib = fib;
74	+	}
75	+
76		private void testInvokeOnPool(ForkJoinPool pool, RecursiveAction a) {
77	<	try {
77	>	try (PoolCleaner cleaner = cleaner(pool)) {
78		assertFalse(a.isDone());
79		assertFalse(a.isCompletedNormally());
80		assertFalse(a.isCompletedAbnormally());
#	Line 76 | Line 90 | public class ForkJoinTask8Test extends J
90		assertFalse(a.isCancelled());
91		assertNull(a.getException());
92		assertNull(a.getRawResult());
79	–	} finally {
80	–	joinPool(pool);
93		}
94		}
95
#	Line 114 | Line 126 | public class ForkJoinTask8Test extends J
126
127		{
128		Thread.currentThread().interrupt();
129	<	long t0 = System.nanoTime();
129	>	long startTime = System.nanoTime();
130		assertSame(expected, a.join());
131	<	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
131	>	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
132		Thread.interrupted();
133		}
134
135		{
136		Thread.currentThread().interrupt();
137	<	long t0 = System.nanoTime();
137	>	long startTime = System.nanoTime();
138		a.quietlyJoin();        // should be no-op
139	<	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
139	>	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
140		Thread.interrupted();
141		}
142
#	Line 160 | Line 172 | public class ForkJoinTask8Test extends J
172		Thread.interrupted();
173
174		{
175	<	long t0 = System.nanoTime();
175	>	long startTime = System.nanoTime();
176		a.quietlyJoin();        // should be no-op
177	<	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
177	>	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
178		}
179
180		try {
#	Line 186 | Line 198 | public class ForkJoinTask8Test extends J
198
199		abstract static class BinaryAsyncAction extends ForkJoinTask<Void> {
200
201	<	private BinaryAsyncAction parent;
201	>	private volatile BinaryAsyncAction parent;
202
203	<	private BinaryAsyncAction sibling;
203	>	private volatile BinaryAsyncAction sibling;
204
205		protected BinaryAsyncAction() {
206		setForkJoinTaskTag(INITIAL_STATE);
#	Line 279 | Line 291 | public class ForkJoinTask8Test extends J
291
292		}
293
294	<	static final class AsyncFib extends BinaryAsyncAction {
294	>	final class AsyncFib extends BinaryAsyncAction {
295		int number;
296	<	public AsyncFib(int n) {
297	<	this.number = n;
296	>	int expectedResult;
297	>	public AsyncFib(int number) {
298	>	this.number = number;
299	>	this.expectedResult = fib[number];
300		}
301
302		public final boolean exec() {
#	Line 303 | Line 317 | public class ForkJoinTask8Test extends J
317		}
318		catch (Throwable ex) {
319		compareAndSetForkJoinTaskTag(INITIAL_STATE, EXCEPTION_STATE);
320	+	throw new Error(ex);
321		}
322		return false;
323		}
#	Line 311 | Line 326 | public class ForkJoinTask8Test extends J
326		number = ((AsyncFib)x).number + ((AsyncFib)y).number;
327		super.onComplete(x, y);
328		}
329	+
330	+	public void checkCompletedNormally() {
331	+	assertEquals(expectedResult, number);
332	+	ForkJoinTask8Test.this.checkCompletedNormally(this);
333	+	}
334		}
335
336		static final class FailingAsyncFib extends BinaryAsyncAction {
#	Line 347 | Line 367 | public class ForkJoinTask8Test extends J
367		* completed tasks; getRawResult returns null.
368		*/
369		public void testInvoke() {
370	+	testInvoke(mainPool());
371	+	}
372	+	public void testInvoke_Singleton() {
373	+	testInvoke(singletonPool());
374	+	}
375	+	public void testInvoke(ForkJoinPool pool) {
376		RecursiveAction a = new CheckedRecursiveAction() {
377		protected void realCompute() {
378		AsyncFib f = new AsyncFib(8);
379		assertNull(f.invoke());
380	<	assertEquals(21, f.number);
355	<	checkCompletedNormally(f);
380	>	f.checkCompletedNormally();
381		}};
382	<	testInvokeOnPool(mainPool(), a);
382	>	testInvokeOnPool(pool, a);
383		}
384
385		/**
#	Line 363 | Line 388 | public class ForkJoinTask8Test extends J
388		* completed tasks
389		*/
390		public void testQuietlyInvoke() {
391	+	testQuietlyInvoke(mainPool());
392	+	}
393	+	public void testQuietlyInvoke_Singleton() {
394	+	testQuietlyInvoke(singletonPool());
395	+	}
396	+	public void testQuietlyInvoke(ForkJoinPool pool) {
397		RecursiveAction a = new CheckedRecursiveAction() {
398		protected void realCompute() {
399		AsyncFib f = new AsyncFib(8);
400		f.quietlyInvoke();
401	<	assertEquals(21, f.number);
371	<	checkCompletedNormally(f);
401	>	f.checkCompletedNormally();
402		}};
403	<	testInvokeOnPool(mainPool(), a);
403	>	testInvokeOnPool(pool, a);
404		}
405
406		/**
407		* join of a forked task returns when task completes
408		*/
409		public void testForkJoin() {
410	+	testForkJoin(mainPool());
411	+	}
412	+	public void testForkJoin_Singleton() {
413	+	testForkJoin(singletonPool());
414	+	}
415	+	public void testForkJoin(ForkJoinPool pool) {
416		RecursiveAction a = new CheckedRecursiveAction() {
417		protected void realCompute() {
418		AsyncFib f = new AsyncFib(8);
419		assertSame(f, f.fork());
420		assertNull(f.join());
421	<	assertEquals(21, f.number);
386	<	checkCompletedNormally(f);
421	>	f.checkCompletedNormally();
422		}};
423	<	testInvokeOnPool(mainPool(), a);
423	>	testInvokeOnPool(pool, a);
424		}
425
426		/**
427		* get of a forked task returns when task completes
428		*/
429		public void testForkGet() {
430	+	testForkGet(mainPool());
431	+	}
432	+	public void testForkGet_Singleton() {
433	+	testForkGet(singletonPool());
434	+	}
435	+	public void testForkGet(ForkJoinPool pool) {
436		RecursiveAction a = new CheckedRecursiveAction() {
437		protected void realCompute() throws Exception {
438		AsyncFib f = new AsyncFib(8);
439		assertSame(f, f.fork());
440		assertNull(f.get());
441	<	assertEquals(21, f.number);
401	<	checkCompletedNormally(f);
441	>	f.checkCompletedNormally();
442		}};
443	<	testInvokeOnPool(mainPool(), a);
443	>	testInvokeOnPool(pool, a);
444		}
445
446		/**
447		* timed get of a forked task returns when task completes
448		*/
449		public void testForkTimedGet() {
450	+	testForkTimedGet(mainPool());
451	+	}
452	+	public void testForkTimedGet_Singleton() {
453	+	testForkTimedGet(singletonPool());
454	+	}
455	+	public void testForkTimedGet(ForkJoinPool pool) {
456		RecursiveAction a = new CheckedRecursiveAction() {
457		protected void realCompute() throws Exception {
458		AsyncFib f = new AsyncFib(8);
459		assertSame(f, f.fork());
460		assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
461	<	assertEquals(21, f.number);
416	<	checkCompletedNormally(f);
461	>	f.checkCompletedNormally();
462		}};
463	<	testInvokeOnPool(mainPool(), a);
463	>	testInvokeOnPool(pool, a);
464		}
465
466		/**
467	<	* timed get with null time unit throws NPE
467	>	* timed get with null time unit throws NullPointerException
468		*/
469	<	public void testForkTimedGetNPE() {
469	>	public void testForkTimedGetNullTimeUnit() {
470	>	testForkTimedGetNullTimeUnit(mainPool());
471	>	}
472	>	public void testForkTimedGetNullTimeUnit_Singleton() {
473	>	testForkTimedGet(singletonPool());
474	>	}
475	>	public void testForkTimedGetNullTimeUnit(ForkJoinPool pool) {
476		RecursiveAction a = new CheckedRecursiveAction() {
477		protected void realCompute() throws Exception {
478		AsyncFib f = new AsyncFib(8);
#	Line 431 | Line 482 | public class ForkJoinTask8Test extends J
482		shouldThrow();
483		} catch (NullPointerException success) {}
484		}};
485	<	testInvokeOnPool(mainPool(), a);
485	>	testInvokeOnPool(pool, a);
486		}
487
488		/**
489		* quietlyJoin of a forked task returns when task completes
490		*/
491		public void testForkQuietlyJoin() {
492	+	testForkQuietlyJoin(mainPool());
493	+	}
494	+	public void testForkQuietlyJoin_Singleton() {
495	+	testForkQuietlyJoin(singletonPool());
496	+	}
497	+	public void testForkQuietlyJoin(ForkJoinPool pool) {
498		RecursiveAction a = new CheckedRecursiveAction() {
499		protected void realCompute() {
500		AsyncFib f = new AsyncFib(8);
501		assertSame(f, f.fork());
502		f.quietlyJoin();
503	<	assertEquals(21, f.number);
447	<	checkCompletedNormally(f);
503	>	f.checkCompletedNormally();
504		}};
505	<	testInvokeOnPool(mainPool(), a);
505	>	testInvokeOnPool(pool, a);
506		}
507
508		/**
#	Line 454 | Line 510 | public class ForkJoinTask8Test extends J
510		* getQueuedTaskCount returns 0 when quiescent
511		*/
512		public void testForkHelpQuiesce() {
513	+	testForkHelpQuiesce(mainPool());
514	+	}
515	+	public void testForkHelpQuiesce_Singleton() {
516	+	testForkHelpQuiesce(singletonPool());
517	+	}
518	+	public void testForkHelpQuiesce(ForkJoinPool pool) {
519		RecursiveAction a = new CheckedRecursiveAction() {
520		protected void realCompute() {
521		AsyncFib f = new AsyncFib(8);
522		assertSame(f, f.fork());
523		helpQuiesce();
462	–	assertEquals(21, f.number);
524		assertEquals(0, getQueuedTaskCount());
525	<	checkCompletedNormally(f);
525	>	f.checkCompletedNormally();
526		}};
527	<	testInvokeOnPool(mainPool(), a);
527	>	testInvokeOnPool(pool, a);
528		}
529
530		/**
531		* invoke task throws exception when task completes abnormally
532		*/
533		public void testAbnormalInvoke() {
534	+	testAbnormalInvoke(mainPool());
535	+	}
536	+	public void testAbnormalInvoke_Singleton() {
537	+	testAbnormalInvoke(singletonPool());
538	+	}
539	+	public void testAbnormalInvoke(ForkJoinPool pool) {
540		RecursiveAction a = new CheckedRecursiveAction() {
541		protected void realCompute() {
542		FailingAsyncFib f = new FailingAsyncFib(8);
#	Line 480 | Line 547 | public class ForkJoinTask8Test extends J
547		checkCompletedAbnormally(f, success);
548		}
549		}};
550	<	testInvokeOnPool(mainPool(), a);
550	>	testInvokeOnPool(pool, a);
551		}
552
553		/**
554		* quietlyInvoke task returns when task completes abnormally
555		*/
556		public void testAbnormalQuietlyInvoke() {
557	+	testAbnormalQuietlyInvoke(mainPool());
558	+	}
559	+	public void testAbnormalQuietlyInvoke_Singleton() {
560	+	testAbnormalQuietlyInvoke(singletonPool());
561	+	}
562	+	public void testAbnormalQuietlyInvoke(ForkJoinPool pool) {
563		RecursiveAction a = new CheckedRecursiveAction() {
564		protected void realCompute() {
565		FailingAsyncFib f = new FailingAsyncFib(8);
#	Line 494 | Line 567 | public class ForkJoinTask8Test extends J
567		assertTrue(f.getException() instanceof FJException);
568		checkCompletedAbnormally(f, f.getException());
569		}};
570	<	testInvokeOnPool(mainPool(), a);
570	>	testInvokeOnPool(pool, a);
571		}
572
573		/**
574		* join of a forked task throws exception when task completes abnormally
575		*/
576		public void testAbnormalForkJoin() {
577	+	testAbnormalForkJoin(mainPool());
578	+	}
579	+	public void testAbnormalForkJoin_Singleton() {
580	+	testAbnormalForkJoin(singletonPool());
581	+	}
582	+	public void testAbnormalForkJoin(ForkJoinPool pool) {
583		RecursiveAction a = new CheckedRecursiveAction() {
584		protected void realCompute() {
585		FailingAsyncFib f = new FailingAsyncFib(8);
#	Line 512 | Line 591 | public class ForkJoinTask8Test extends J
591		checkCompletedAbnormally(f, success);
592		}
593		}};
594	<	testInvokeOnPool(mainPool(), a);
594	>	testInvokeOnPool(pool, a);
595		}
596
597		/**
598		* get of a forked task throws exception when task completes abnormally
599		*/
600		public void testAbnormalForkGet() {
601	+	testAbnormalForkGet(mainPool());
602	+	}
603	+	public void testAbnormalForkGet_Singleton() {
604	+	testAbnormalForkJoin(singletonPool());
605	+	}
606	+	public void testAbnormalForkGet(ForkJoinPool pool) {
607		RecursiveAction a = new CheckedRecursiveAction() {
608		protected void realCompute() throws Exception {
609		FailingAsyncFib f = new FailingAsyncFib(8);
#	Line 532 | Line 617 | public class ForkJoinTask8Test extends J
617		checkCompletedAbnormally(f, cause);
618		}
619		}};
620	<	testInvokeOnPool(mainPool(), a);
620	>	testInvokeOnPool(pool, a);
621		}
622
623		/**
624		* timed get of a forked task throws exception when task completes abnormally
625		*/
626		public void testAbnormalForkTimedGet() {
627	+	testAbnormalForkTimedGet(mainPool());
628	+	}
629	+	public void testAbnormalForkTimedGet_Singleton() {
630	+	testAbnormalForkTimedGet(singletonPool());
631	+	}
632	+	public void testAbnormalForkTimedGet(ForkJoinPool pool) {
633		RecursiveAction a = new CheckedRecursiveAction() {
634		protected void realCompute() throws Exception {
635		FailingAsyncFib f = new FailingAsyncFib(8);
#	Line 552 | Line 643 | public class ForkJoinTask8Test extends J
643		checkCompletedAbnormally(f, cause);
644		}
645		}};
646	<	testInvokeOnPool(mainPool(), a);
646	>	testInvokeOnPool(pool, a);
647		}
648
649		/**
650		* quietlyJoin of a forked task returns when task completes abnormally
651		*/
652		public void testAbnormalForkQuietlyJoin() {
653	+	testAbnormalForkQuietlyJoin(mainPool());
654	+	}
655	+	public void testAbnormalForkQuietlyJoin_Singleton() {
656	+	testAbnormalForkQuietlyJoin(singletonPool());
657	+	}
658	+	public void testAbnormalForkQuietlyJoin(ForkJoinPool pool) {
659		RecursiveAction a = new CheckedRecursiveAction() {
660		protected void realCompute() {
661		FailingAsyncFib f = new FailingAsyncFib(8);
#	Line 567 | Line 664 | public class ForkJoinTask8Test extends J
664		assertTrue(f.getException() instanceof FJException);
665		checkCompletedAbnormally(f, f.getException());
666		}};
667	<	testInvokeOnPool(mainPool(), a);
667	>	testInvokeOnPool(pool, a);
668		}
669
670		/**
671		* getPool of executing task returns its pool
672		*/
673		public void testGetPool() {
674	<	final ForkJoinPool mainPool = mainPool();
674	>	testGetPool(mainPool());
675	>	}
676	>	public void testGetPool_Singleton() {
677	>	testGetPool(singletonPool());
678	>	}
679	>	public void testGetPool(ForkJoinPool pool) {
680		RecursiveAction a = new CheckedRecursiveAction() {
681		protected void realCompute() {
682	<	assertSame(mainPool, getPool());
682	>	assertSame(pool, getPool());
683		}};
684	<	testInvokeOnPool(mainPool, a);
684	>	testInvokeOnPool(pool, a);
685		}
686
687		/**
#	Line 597 | Line 699 | public class ForkJoinTask8Test extends J
699		* inForkJoinPool of executing task returns true
700		*/
701		public void testInForkJoinPool() {
702	+	testInForkJoinPool(mainPool());
703	+	}
704	+	public void testInForkJoinPool_Singleton() {
705	+	testInForkJoinPool(singletonPool());
706	+	}
707	+	public void testInForkJoinPool(ForkJoinPool pool) {
708		RecursiveAction a = new CheckedRecursiveAction() {
709		protected void realCompute() {
710		assertTrue(inForkJoinPool());
711		}};
712	<	testInvokeOnPool(mainPool(), a);
712	>	testInvokeOnPool(pool, a);
713		}
714
715		/**
#	Line 631 | Line 739 | public class ForkJoinTask8Test extends J
739		* invoke task throws exception after invoking completeExceptionally
740		*/
741		public void testCompleteExceptionally() {
742	+	testCompleteExceptionally(mainPool());
743	+	}
744	+	public void testCompleteExceptionally_Singleton() {
745	+	testCompleteExceptionally(singletonPool());
746	+	}
747	+	public void testCompleteExceptionally(ForkJoinPool pool) {
748		RecursiveAction a = new CheckedRecursiveAction() {
749		protected void realCompute() {
750		AsyncFib f = new AsyncFib(8);
#	Line 642 | Line 756 | public class ForkJoinTask8Test extends J
756		checkCompletedAbnormally(f, success);
757		}
758		}};
759	<	testInvokeOnPool(mainPool(), a);
759	>	testInvokeOnPool(pool, a);
760		}
761
762		/**
763	<	* invokeAll(t1, t2) invokes all task arguments
763	>	* invokeAll(tasks) with 1 argument invokes task
764		*/
765	<	public void testInvokeAll2() {
765	>	public void testInvokeAll1() {
766	>	testInvokeAll1(mainPool());
767	>	}
768	>	public void testInvokeAll1_Singleton() {
769	>	testInvokeAll1(singletonPool());
770	>	}
771	>	public void testInvokeAll1(ForkJoinPool pool) {
772		RecursiveAction a = new CheckedRecursiveAction() {
773		protected void realCompute() {
774		AsyncFib f = new AsyncFib(8);
775	<	AsyncFib g = new AsyncFib(9);
776	<	invokeAll(f, g);
657	<	assertEquals(21, f.number);
658	<	assertEquals(34, g.number);
659	<	checkCompletedNormally(f);
660	<	checkCompletedNormally(g);
775	>	invokeAll(f);
776	>	f.checkCompletedNormally();
777		}};
778	<	testInvokeOnPool(mainPool(), a);
778	>	testInvokeOnPool(pool, a);
779		}
780
781		/**
782	<	* invokeAll(tasks) with 1 argument invokes task
782	>	* invokeAll(t1, t2) invokes all task arguments
783		*/
784	<	public void testInvokeAll1() {
784	>	public void testInvokeAll2() {
785	>	testInvokeAll2(mainPool());
786	>	}
787	>	public void testInvokeAll2_Singleton() {
788	>	testInvokeAll2(singletonPool());
789	>	}
790	>	public void testInvokeAll2(ForkJoinPool pool) {
791		RecursiveAction a = new CheckedRecursiveAction() {
792		protected void realCompute() {
793	<	AsyncFib f = new AsyncFib(8);
794	<	invokeAll(f);
795	<	checkCompletedNormally(f);
796	<	assertEquals(21, f.number);
793	>	AsyncFib[] tasks = {
794	>	new AsyncFib(8),
795	>	new AsyncFib(9),
796	>	};
797	>	invokeAll(tasks[0], tasks[1]);
798	>	for (AsyncFib task : tasks) assertTrue(task.isDone());
799	>	for (AsyncFib task : tasks) task.checkCompletedNormally();
800		}};
801	<	testInvokeOnPool(mainPool(), a);
801	>	testInvokeOnPool(pool, a);
802		}
803
804		/**
805		* invokeAll(tasks) with > 2 argument invokes tasks
806		*/
807		public void testInvokeAll3() {
808	+	testInvokeAll3(mainPool());
809	+	}
810	+	public void testInvokeAll3_Singleton() {
811	+	testInvokeAll3(singletonPool());
812	+	}
813	+	public void testInvokeAll3(ForkJoinPool pool) {
814		RecursiveAction a = new CheckedRecursiveAction() {
815		protected void realCompute() {
816	<	AsyncFib f = new AsyncFib(8);
817	<	AsyncFib g = new AsyncFib(9);
818	<	AsyncFib h = new AsyncFib(7);
819	<	invokeAll(f, g, h);
820	<	assertEquals(21, f.number);
821	<	assertEquals(34, g.number);
822	<	assertEquals(13, h.number);
823	<	checkCompletedNormally(f);
693	<	checkCompletedNormally(g);
694	<	checkCompletedNormally(h);
816	>	AsyncFib[] tasks = {
817	>	new AsyncFib(8),
818	>	new AsyncFib(9),
819	>	new AsyncFib(7),
820	>	};
821	>	invokeAll(tasks[0], tasks[1], tasks[2]);
822	>	for (AsyncFib task : tasks) assertTrue(task.isDone());
823	>	for (AsyncFib task : tasks) task.checkCompletedNormally();
824		}};
825	<	testInvokeOnPool(mainPool(), a);
825	>	testInvokeOnPool(pool, a);
826		}
827
828		/**
829		* invokeAll(collection) invokes all tasks in the collection
830		*/
831		public void testInvokeAllCollection() {
832	+	testInvokeAllCollection(mainPool());
833	+	}
834	+	public void testInvokeAllCollection_Singleton() {
835	+	testInvokeAllCollection(singletonPool());
836	+	}
837	+	public void testInvokeAllCollection(ForkJoinPool pool) {
838		RecursiveAction a = new CheckedRecursiveAction() {
839		protected void realCompute() {
840	<	AsyncFib f = new AsyncFib(8);
841	<	AsyncFib g = new AsyncFib(9);
842	<	AsyncFib h = new AsyncFib(7);
843	<	HashSet set = new HashSet();
844	<	set.add(f);
845	<	set.add(g);
846	<	set.add(h);
847	<	invokeAll(set);
713	<	assertEquals(21, f.number);
714	<	assertEquals(34, g.number);
715	<	assertEquals(13, h.number);
716	<	checkCompletedNormally(f);
717	<	checkCompletedNormally(g);
718	<	checkCompletedNormally(h);
840	>	AsyncFib[] tasks = {
841	>	new AsyncFib(8),
842	>	new AsyncFib(9),
843	>	new AsyncFib(7),
844	>	};
845	>	invokeAll(Arrays.asList(tasks));
846	>	for (AsyncFib task : tasks) assertTrue(task.isDone());
847	>	for (AsyncFib task : tasks) task.checkCompletedNormally();
848		}};
849	<	testInvokeOnPool(mainPool(), a);
849	>	testInvokeOnPool(pool, a);
850		}
851
852		/**
853		* invokeAll(tasks) with any null task throws NullPointerException
854		*/
855		public void testInvokeAllNullTask() {
856	+	testInvokeAllNullTask(mainPool());
857	+	}
858	+	public void testInvokeAllNullTask_Singleton() {
859	+	testInvokeAllNullTask(singletonPool());
860	+	}
861	+	public void testInvokeAllNullTask(ForkJoinPool pool) {
862		RecursiveAction a = new CheckedRecursiveAction() {
863		protected void realCompute() {
729	–	AsyncFib f = new AsyncFib(8);
730	–	AsyncFib g = new AsyncFib(9);
864		AsyncFib nul = null;
865		Runnable[] throwingActions = {
866		() -> invokeAll(nul),
867		() -> invokeAll(nul, nul),
868	<	() -> invokeAll(f, g, nul),
869	<	() -> invokeAll(f, nul, g),
870	<	() -> invokeAll(nul, f, g),
868	>	() -> invokeAll(new AsyncFib(8), new AsyncFib(9), nul),
869	>	() -> invokeAll(new AsyncFib(8), nul, new AsyncFib(9)),
870	>	() -> invokeAll(nul, new AsyncFib(8), new AsyncFib(9)),
871		};
872		assertThrows(NullPointerException.class, throwingActions);
873		}};
874	<	testInvokeOnPool(mainPool(), a);
874	>	testInvokeOnPool(pool, a);
875		}
876
877		/**
878	<	* invokeAll(t1, t2) throw exception if any task does
878	>	* invokeAll(tasks) with 1 argument throws exception if task does
879		*/
880	<	public void testAbnormalInvokeAll2() {
880	>	public void testAbnormalInvokeAll1() {
881	>	testAbnormalInvokeAll1(mainPool());
882	>	}
883	>	public void testAbnormalInvokeAll1_Singleton() {
884	>	testAbnormalInvokeAll1(singletonPool());
885	>	}
886	>	public void testAbnormalInvokeAll1(ForkJoinPool pool) {
887		RecursiveAction a = new CheckedRecursiveAction() {
888		protected void realCompute() {
750	–	AsyncFib f = new AsyncFib(8);
889		FailingAsyncFib g = new FailingAsyncFib(9);
890		try {
891	<	invokeAll(f, g);
891	>	invokeAll(g);
892		shouldThrow();
893		} catch (FJException success) {
894		checkCompletedAbnormally(g, success);
895		}
896		}};
897	<	testInvokeOnPool(mainPool(), a);
897	>	testInvokeOnPool(pool, a);
898		}
899
900		/**
901	<	* invokeAll(tasks) with 1 argument throws exception if task does
901	>	* invokeAll(t1, t2) throw exception if any task does
902		*/
903	<	public void testAbnormalInvokeAll1() {
903	>	public void testAbnormalInvokeAll2() {
904	>	testAbnormalInvokeAll2(mainPool());
905	>	}
906	>	public void testAbnormalInvokeAll2_Singleton() {
907	>	testAbnormalInvokeAll2(singletonPool());
908	>	}
909	>	public void testAbnormalInvokeAll2(ForkJoinPool pool) {
910		RecursiveAction a = new CheckedRecursiveAction() {
911		protected void realCompute() {
912	+	AsyncFib f = new AsyncFib(8);
913		FailingAsyncFib g = new FailingAsyncFib(9);
914	+	ForkJoinTask[] tasks = { f, g };
915	+	Collections.shuffle(Arrays.asList(tasks));
916		try {
917	<	invokeAll(g);
917	>	invokeAll(tasks[0], tasks[1]);
918		shouldThrow();
919		} catch (FJException success) {
920		checkCompletedAbnormally(g, success);
921		}
922		}};
923	<	testInvokeOnPool(mainPool(), a);
923	>	testInvokeOnPool(pool, a);
924		}
925
926		/**
927		* invokeAll(tasks) with > 2 argument throws exception if any task does
928		*/
929		public void testAbnormalInvokeAll3() {
930	+	testAbnormalInvokeAll3(mainPool());
931	+	}
932	+	public void testAbnormalInvokeAll3_Singleton() {
933	+	testAbnormalInvokeAll3(singletonPool());
934	+	}
935	+	public void testAbnormalInvokeAll3(ForkJoinPool pool) {
936		RecursiveAction a = new CheckedRecursiveAction() {
937		protected void realCompute() {
938		AsyncFib f = new AsyncFib(8);
939		FailingAsyncFib g = new FailingAsyncFib(9);
940		AsyncFib h = new AsyncFib(7);
941	+	ForkJoinTask[] tasks = { f, g, h };
942	+	Collections.shuffle(Arrays.asList(tasks));
943		try {
944	<	invokeAll(f, g, h);
944	>	invokeAll(tasks[0], tasks[1], tasks[2]);
945		shouldThrow();
946		} catch (FJException success) {
947		checkCompletedAbnormally(g, success);
948		}
949		}};
950	<	testInvokeOnPool(mainPool(), a);
950	>	testInvokeOnPool(pool, a);
951		}
952
953		/**
954		* invokeAll(collection) throws exception if any task does
955		*/
956		public void testAbnormalInvokeAllCollection() {
957	+	testAbnormalInvokeAllCollection(mainPool());
958	+	}
959	+	public void testAbnormalInvokeAllCollection_Singleton() {
960	+	testAbnormalInvokeAllCollection(singletonPool());
961	+	}
962	+	public void testAbnormalInvokeAllCollection(ForkJoinPool pool) {
963		RecursiveAction a = new CheckedRecursiveAction() {
964		protected void realCompute() {
965		FailingAsyncFib f = new FailingAsyncFib(8);
966		AsyncFib g = new AsyncFib(9);
967		AsyncFib h = new AsyncFib(7);
968	<	HashSet set = new HashSet();
969	<	set.add(f);
809	<	set.add(g);
810	<	set.add(h);
968	>	ForkJoinTask[] tasks = { f, g, h };
969	>	Collections.shuffle(Arrays.asList(tasks));
970		try {
971	<	invokeAll(set);
971	>	invokeAll(Arrays.asList(tasks));
972		shouldThrow();
973		} catch (FJException success) {
974		checkCompletedAbnormally(f, success);
975		}
976		}};
977	<	testInvokeOnPool(mainPool(), a);
977	>	testInvokeOnPool(pool, a);
978		}
979
980		/**
#	Line 832 | Line 991 | public class ForkJoinTask8Test extends J
991		assertTrue(f.tryUnfork());
992		helpQuiesce();
993		checkNotDone(f);
994	<	checkCompletedNormally(g);
994	>	g.checkCompletedNormally();
995		}};
996		testInvokeOnPool(singletonPool(), a);
997		}
#	Line 853 | Line 1012 | public class ForkJoinTask8Test extends J
1012		assertTrue(getSurplusQueuedTaskCount() > 0);
1013		helpQuiesce();
1014		assertEquals(0, getSurplusQueuedTaskCount());
1015	<	checkCompletedNormally(f);
1016	<	checkCompletedNormally(g);
1017	<	checkCompletedNormally(h);
1015	>	f.checkCompletedNormally();
1016	>	g.checkCompletedNormally();
1017	>	h.checkCompletedNormally();
1018		}};
1019		testInvokeOnPool(singletonPool(), a);
1020		}
#	Line 872 | Line 1031 | public class ForkJoinTask8Test extends J
1031		assertSame(f, f.fork());
1032		assertSame(f, peekNextLocalTask());
1033		assertNull(f.join());
1034	<	checkCompletedNormally(f);
1034	>	f.checkCompletedNormally();
1035		helpQuiesce();
1036	<	checkCompletedNormally(g);
1036	>	g.checkCompletedNormally();
1037		}};
1038		testInvokeOnPool(singletonPool(), a);
1039		}
#	Line 893 | Line 1052 | public class ForkJoinTask8Test extends J
1052		assertSame(f, pollNextLocalTask());
1053		helpQuiesce();
1054		checkNotDone(f);
1055	<	assertEquals(34, g.number);
897	<	checkCompletedNormally(g);
1055	>	g.checkCompletedNormally();
1056		}};
1057		testInvokeOnPool(singletonPool(), a);
1058		}
#	Line 912 | Line 1070 | public class ForkJoinTask8Test extends J
1070		assertSame(f, pollTask());
1071		helpQuiesce();
1072		checkNotDone(f);
1073	<	checkCompletedNormally(g);
1073	>	g.checkCompletedNormally();
1074		}};
1075		testInvokeOnPool(singletonPool(), a);
1076		}
#	Line 930 | Line 1088 | public class ForkJoinTask8Test extends J
1088		assertSame(g, peekNextLocalTask());
1089		assertNull(f.join());
1090		helpQuiesce();
1091	<	checkCompletedNormally(f);
1092	<	assertEquals(34, g.number);
935	<	checkCompletedNormally(g);
1091	>	f.checkCompletedNormally();
1092	>	g.checkCompletedNormally();
1093		}};
1094		testInvokeOnPool(asyncSingletonPool(), a);
1095		}
#	Line 950 | Line 1107 | public class ForkJoinTask8Test extends J
1107		assertSame(f, f.fork());
1108		assertSame(g, pollNextLocalTask());
1109		helpQuiesce();
1110	<	assertEquals(21, f.number);
954	<	checkCompletedNormally(f);
1110	>	f.checkCompletedNormally();
1111		checkNotDone(g);
1112		}};
1113		testInvokeOnPool(asyncSingletonPool(), a);
#	Line 970 | Line 1126 | public class ForkJoinTask8Test extends J
1126		assertSame(f, f.fork());
1127		assertSame(g, pollTask());
1128		helpQuiesce();
1129	<	assertEquals(21, f.number);
974	<	checkCompletedNormally(f);
1129	>	f.checkCompletedNormally();
1130		checkNotDone(g);
1131		}};
1132		testInvokeOnPool(asyncSingletonPool(), a);
1133		}
1134
980	–	// versions for singleton pools
981	–
982	–	/**
983	–	* invoke returns when task completes normally.
984	–	* isCompletedAbnormally and isCancelled return false for normally
985	–	* completed tasks; getRawResult returns null.
986	–	*/
987	–	public void testInvokeSingleton() {
988	–	RecursiveAction a = new CheckedRecursiveAction() {
989	–	protected void realCompute() {
990	–	AsyncFib f = new AsyncFib(8);
991	–	assertNull(f.invoke());
992	–	assertEquals(21, f.number);
993	–	checkCompletedNormally(f);
994	–	}};
995	–	testInvokeOnPool(singletonPool(), a);
996	–	}
997	–
998	–	/**
999	–	* quietlyInvoke task returns when task completes normally.
1000	–	* isCompletedAbnormally and isCancelled return false for normally
1001	–	* completed tasks
1002	–	*/
1003	–	public void testQuietlyInvokeSingleton() {
1004	–	RecursiveAction a = new CheckedRecursiveAction() {
1005	–	protected void realCompute() {
1006	–	AsyncFib f = new AsyncFib(8);
1007	–	f.quietlyInvoke();
1008	–	assertEquals(21, f.number);
1009	–	checkCompletedNormally(f);
1010	–	}};
1011	–	testInvokeOnPool(singletonPool(), a);
1012	–	}
1013	–
1014	–	/**
1015	–	* join of a forked task returns when task completes
1016	–	*/
1017	–	public void testForkJoinSingleton() {
1018	–	RecursiveAction a = new CheckedRecursiveAction() {
1019	–	protected void realCompute() {
1020	–	AsyncFib f = new AsyncFib(8);
1021	–	assertSame(f, f.fork());
1022	–	assertNull(f.join());
1023	–	assertEquals(21, f.number);
1024	–	checkCompletedNormally(f);
1025	–	}};
1026	–	testInvokeOnPool(singletonPool(), a);
1027	–	}
1028	–
1029	–	/**
1030	–	* get of a forked task returns when task completes
1031	–	*/
1032	–	public void testForkGetSingleton() {
1033	–	RecursiveAction a = new CheckedRecursiveAction() {
1034	–	protected void realCompute() throws Exception {
1035	–	AsyncFib f = new AsyncFib(8);
1036	–	assertSame(f, f.fork());
1037	–	assertNull(f.get());
1038	–	assertEquals(21, f.number);
1039	–	checkCompletedNormally(f);
1040	–	}};
1041	–	testInvokeOnPool(singletonPool(), a);
1042	–	}
1043	–
1044	–	/**
1045	–	* timed get of a forked task returns when task completes
1046	–	*/
1047	–	public void testForkTimedGetSingleton() {
1048	–	RecursiveAction a = new CheckedRecursiveAction() {
1049	–	protected void realCompute() throws Exception {
1050	–	AsyncFib f = new AsyncFib(8);
1051	–	assertSame(f, f.fork());
1052	–	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
1053	–	assertEquals(21, f.number);
1054	–	checkCompletedNormally(f);
1055	–	}};
1056	–	testInvokeOnPool(singletonPool(), a);
1057	–	}
1058	–
1059	–	/**
1060	–	* timed get with null time unit throws NPE
1061	–	*/
1062	–	public void testForkTimedGetNPESingleton() {
1063	–	RecursiveAction a = new CheckedRecursiveAction() {
1064	–	protected void realCompute() throws Exception {
1065	–	AsyncFib f = new AsyncFib(8);
1066	–	assertSame(f, f.fork());
1067	–	try {
1068	–	f.get(5L, null);
1069	–	shouldThrow();
1070	–	} catch (NullPointerException success) {}
1071	–	}};
1072	–	testInvokeOnPool(singletonPool(), a);
1073	–	}
1074	–
1075	–	/**
1076	–	* quietlyJoin of a forked task returns when task completes
1077	–	*/
1078	–	public void testForkQuietlyJoinSingleton() {
1079	–	RecursiveAction a = new CheckedRecursiveAction() {
1080	–	protected void realCompute() {
1081	–	AsyncFib f = new AsyncFib(8);
1082	–	assertSame(f, f.fork());
1083	–	f.quietlyJoin();
1084	–	assertEquals(21, f.number);
1085	–	checkCompletedNormally(f);
1086	–	}};
1087	–	testInvokeOnPool(singletonPool(), a);
1088	–	}
1089	–
1090	–	/**
1091	–	* helpQuiesce returns when tasks are complete.
1092	–	* getQueuedTaskCount returns 0 when quiescent
1093	–	*/
1094	–	public void testForkHelpQuiesceSingleton() {
1095	–	RecursiveAction a = new CheckedRecursiveAction() {
1096	–	protected void realCompute() {
1097	–	AsyncFib f = new AsyncFib(8);
1098	–	assertSame(f, f.fork());
1099	–	helpQuiesce();
1100	–	assertEquals(0, getQueuedTaskCount());
1101	–	assertEquals(21, f.number);
1102	–	checkCompletedNormally(f);
1103	–	}};
1104	–	testInvokeOnPool(singletonPool(), a);
1105	–	}
1106	–
1107	–	/**
1108	–	* invoke task throws exception when task completes abnormally
1109	–	*/
1110	–	public void testAbnormalInvokeSingleton() {
1111	–	RecursiveAction a = new CheckedRecursiveAction() {
1112	–	protected void realCompute() {
1113	–	FailingAsyncFib f = new FailingAsyncFib(8);
1114	–	try {
1115	–	f.invoke();
1116	–	shouldThrow();
1117	–	} catch (FJException success) {
1118	–	checkCompletedAbnormally(f, success);
1119	–	}
1120	–	}};
1121	–	testInvokeOnPool(singletonPool(), a);
1122	–	}
1123	–
1124	–	/**
1125	–	* quietlyInvoke task returns when task completes abnormally
1126	–	*/
1127	–	public void testAbnormalQuietlyInvokeSingleton() {
1128	–	RecursiveAction a = new CheckedRecursiveAction() {
1129	–	protected void realCompute() {
1130	–	FailingAsyncFib f = new FailingAsyncFib(8);
1131	–	f.quietlyInvoke();
1132	–	assertTrue(f.getException() instanceof FJException);
1133	–	checkCompletedAbnormally(f, f.getException());
1134	–	}};
1135	–	testInvokeOnPool(singletonPool(), a);
1136	–	}
1137	–
1138	–	/**
1139	–	* join of a forked task throws exception when task completes abnormally
1140	–	*/
1141	–	public void testAbnormalForkJoinSingleton() {
1142	–	RecursiveAction a = new CheckedRecursiveAction() {
1143	–	protected void realCompute() {
1144	–	FailingAsyncFib f = new FailingAsyncFib(8);
1145	–	assertSame(f, f.fork());
1146	–	try {
1147	–	f.join();
1148	–	shouldThrow();
1149	–	} catch (FJException success) {
1150	–	checkCompletedAbnormally(f, success);
1151	–	}
1152	–	}};
1153	–	testInvokeOnPool(singletonPool(), a);
1154	–	}
1155	–
1156	–	/**
1157	–	* get of a forked task throws exception when task completes abnormally
1158	–	*/
1159	–	public void testAbnormalForkGetSingleton() {
1160	–	RecursiveAction a = new CheckedRecursiveAction() {
1161	–	protected void realCompute() throws Exception {
1162	–	FailingAsyncFib f = new FailingAsyncFib(8);
1163	–	assertSame(f, f.fork());
1164	–	try {
1165	–	f.get();
1166	–	shouldThrow();
1167	–	} catch (ExecutionException success) {
1168	–	Throwable cause = success.getCause();
1169	–	assertTrue(cause instanceof FJException);
1170	–	checkCompletedAbnormally(f, cause);
1171	–	}
1172	–	}};
1173	–	testInvokeOnPool(singletonPool(), a);
1174	–	}
1175	–
1176	–	/**
1177	–	* timed get of a forked task throws exception when task completes abnormally
1178	–	*/
1179	–	public void testAbnormalForkTimedGetSingleton() {
1180	–	RecursiveAction a = new CheckedRecursiveAction() {
1181	–	protected void realCompute() throws Exception {
1182	–	FailingAsyncFib f = new FailingAsyncFib(8);
1183	–	assertSame(f, f.fork());
1184	–	try {
1185	–	f.get(LONG_DELAY_MS, MILLISECONDS);
1186	–	shouldThrow();
1187	–	} catch (ExecutionException success) {
1188	–	Throwable cause = success.getCause();
1189	–	assertTrue(cause instanceof FJException);
1190	–	checkCompletedAbnormally(f, cause);
1191	–	}
1192	–	}};
1193	–	testInvokeOnPool(singletonPool(), a);
1194	–	}
1195	–
1196	–	/**
1197	–	* quietlyJoin of a forked task returns when task completes abnormally
1198	–	*/
1199	–	public void testAbnormalForkQuietlyJoinSingleton() {
1200	–	RecursiveAction a = new CheckedRecursiveAction() {
1201	–	protected void realCompute() {
1202	–	FailingAsyncFib f = new FailingAsyncFib(8);
1203	–	assertSame(f, f.fork());
1204	–	f.quietlyJoin();
1205	–	assertTrue(f.getException() instanceof FJException);
1206	–	checkCompletedAbnormally(f, f.getException());
1207	–	}};
1208	–	testInvokeOnPool(singletonPool(), a);
1209	–	}
1210	–
1211	–	/**
1212	–	* invoke task throws exception after invoking completeExceptionally
1213	–	*/
1214	–	public void testCompleteExceptionallySingleton() {
1215	–	RecursiveAction a = new CheckedRecursiveAction() {
1216	–	protected void realCompute() {
1217	–	AsyncFib f = new AsyncFib(8);
1218	–	f.completeExceptionally(new FJException());
1219	–	try {
1220	–	f.invoke();
1221	–	shouldThrow();
1222	–	} catch (FJException success) {
1223	–	checkCompletedAbnormally(f, success);
1224	–	}
1225	–	}};
1226	–	testInvokeOnPool(singletonPool(), a);
1227	–	}
1228	–
1229	–	/**
1230	–	* invokeAll(t1, t2) invokes all task arguments
1231	–	*/
1232	–	public void testInvokeAll2Singleton() {
1233	–	RecursiveAction a = new CheckedRecursiveAction() {
1234	–	protected void realCompute() {
1235	–	AsyncFib f = new AsyncFib(8);
1236	–	AsyncFib g = new AsyncFib(9);
1237	–	invokeAll(f, g);
1238	–	assertEquals(21, f.number);
1239	–	assertEquals(34, g.number);
1240	–	checkCompletedNormally(f);
1241	–	checkCompletedNormally(g);
1242	–	}};
1243	–	testInvokeOnPool(singletonPool(), a);
1244	–	}
1245	–
1246	–	/**
1247	–	* invokeAll(tasks) with 1 argument invokes task
1248	–	*/
1249	–	public void testInvokeAll1Singleton() {
1250	–	RecursiveAction a = new CheckedRecursiveAction() {
1251	–	protected void realCompute() {
1252	–	AsyncFib f = new AsyncFib(8);
1253	–	invokeAll(f);
1254	–	checkCompletedNormally(f);
1255	–	assertEquals(21, f.number);
1256	–	}};
1257	–	testInvokeOnPool(singletonPool(), a);
1258	–	}
1259	–
1260	–	/**
1261	–	* invokeAll(tasks) with > 2 argument invokes tasks
1262	–	*/
1263	–	public void testInvokeAll3Singleton() {
1264	–	RecursiveAction a = new CheckedRecursiveAction() {
1265	–	protected void realCompute() {
1266	–	AsyncFib f = new AsyncFib(8);
1267	–	AsyncFib g = new AsyncFib(9);
1268	–	AsyncFib h = new AsyncFib(7);
1269	–	invokeAll(f, g, h);
1270	–	assertEquals(21, f.number);
1271	–	assertEquals(34, g.number);
1272	–	assertEquals(13, h.number);
1273	–	checkCompletedNormally(f);
1274	–	checkCompletedNormally(g);
1275	–	checkCompletedNormally(h);
1276	–	}};
1277	–	testInvokeOnPool(singletonPool(), a);
1278	–	}
1279	–
1280	–	/**
1281	–	* invokeAll(collection) invokes all tasks in the collection
1282	–	*/
1283	–	public void testInvokeAllCollectionSingleton() {
1284	–	RecursiveAction a = new CheckedRecursiveAction() {
1285	–	protected void realCompute() {
1286	–	AsyncFib f = new AsyncFib(8);
1287	–	AsyncFib g = new AsyncFib(9);
1288	–	AsyncFib h = new AsyncFib(7);
1289	–	HashSet set = new HashSet();
1290	–	set.add(f);
1291	–	set.add(g);
1292	–	set.add(h);
1293	–	invokeAll(set);
1294	–	assertEquals(21, f.number);
1295	–	assertEquals(34, g.number);
1296	–	assertEquals(13, h.number);
1297	–	checkCompletedNormally(f);
1298	–	checkCompletedNormally(g);
1299	–	checkCompletedNormally(h);
1300	–	}};
1301	–	testInvokeOnPool(singletonPool(), a);
1302	–	}
1303	–
1304	–	/**
1305	–	* invokeAll(tasks) with any null task throws NullPointerException
1306	–	*/
1307	–	public void testInvokeAllNullTaskSingleton() {
1308	–	RecursiveAction a = new CheckedRecursiveAction() {
1309	–	protected void realCompute() {
1310	–	AsyncFib f = new AsyncFib(8);
1311	–	AsyncFib g = new AsyncFib(9);
1312	–	AsyncFib nul = null;
1313	–	Runnable[] throwingActions = {
1314	–	() -> invokeAll(nul),
1315	–	() -> invokeAll(nul, nul),
1316	–	() -> invokeAll(f, g, nul),
1317	–	() -> invokeAll(f, nul, g),
1318	–	() -> invokeAll(nul, f, g),
1319	–	};
1320	–	assertThrows(NullPointerException.class, throwingActions);
1321	–	}};
1322	–	testInvokeOnPool(singletonPool(), a);
1323	–	}
1324	–
1325	–	/**
1326	–	* invokeAll(t1, t2) throw exception if any task does
1327	–	*/
1328	–	public void testAbnormalInvokeAll2Singleton() {
1329	–	RecursiveAction a = new CheckedRecursiveAction() {
1330	–	protected void realCompute() {
1331	–	AsyncFib f = new AsyncFib(8);
1332	–	FailingAsyncFib g = new FailingAsyncFib(9);
1333	–	try {
1334	–	invokeAll(f, g);
1335	–	shouldThrow();
1336	–	} catch (FJException success) {
1337	–	checkCompletedAbnormally(g, success);
1338	–	}
1339	–	}};
1340	–	testInvokeOnPool(singletonPool(), a);
1341	–	}
1342	–
1343	–	/**
1344	–	* invokeAll(tasks) with 1 argument throws exception if task does
1345	–	*/
1346	–	public void testAbnormalInvokeAll1Singleton() {
1347	–	RecursiveAction a = new CheckedRecursiveAction() {
1348	–	protected void realCompute() {
1349	–	FailingAsyncFib g = new FailingAsyncFib(9);
1350	–	try {
1351	–	invokeAll(g);
1352	–	shouldThrow();
1353	–	} catch (FJException success) {
1354	–	checkCompletedAbnormally(g, success);
1355	–	}
1356	–	}};
1357	–	testInvokeOnPool(singletonPool(), a);
1358	–	}
1359	–
1360	–	/**
1361	–	* invokeAll(tasks) with > 2 argument throws exception if any task does
1362	–	*/
1363	–	public void testAbnormalInvokeAll3Singleton() {
1364	–	RecursiveAction a = new CheckedRecursiveAction() {
1365	–	protected void realCompute() {
1366	–	AsyncFib f = new AsyncFib(8);
1367	–	FailingAsyncFib g = new FailingAsyncFib(9);
1368	–	AsyncFib h = new AsyncFib(7);
1369	–	try {
1370	–	invokeAll(f, g, h);
1371	–	shouldThrow();
1372	–	} catch (FJException success) {
1373	–	checkCompletedAbnormally(g, success);
1374	–	}
1375	–	}};
1376	–	testInvokeOnPool(singletonPool(), a);
1377	–	}
1378	–
1379	–	/**
1380	–	* invokeAll(collection) throws exception if any task does
1381	–	*/
1382	–	public void testAbnormalInvokeAllCollectionSingleton() {
1383	–	RecursiveAction a = new CheckedRecursiveAction() {
1384	–	protected void realCompute() {
1385	–	FailingAsyncFib f = new FailingAsyncFib(8);
1386	–	AsyncFib g = new AsyncFib(9);
1387	–	AsyncFib h = new AsyncFib(7);
1388	–	HashSet set = new HashSet();
1389	–	set.add(f);
1390	–	set.add(g);
1391	–	set.add(h);
1392	–	try {
1393	–	invokeAll(set);
1394	–	shouldThrow();
1395	–	} catch (FJException success) {
1396	–	checkCompletedAbnormally(f, success);
1397	–	}
1398	–	}};
1399	–	testInvokeOnPool(singletonPool(), a);
1400	–	}
1401	–
1135		/**
1136		* ForkJoinTask.quietlyComplete returns when task completes
1137		* normally without setting a value. The most recent value
#	Line 1420 | Line 1153 | public class ForkJoinTask8Test extends J
1153		testInvokeOnPool(mainPool(), a);
1154		}
1155
1156	+	// jdk9
1157	+
1158	+	/**
1159	+	* pollSubmission returns unexecuted submitted task, if present
1160	+	*/
1161	+	public void testPollSubmission() {
1162	+	final CountDownLatch done = new CountDownLatch(1);
1163	+	final ForkJoinTask a = ForkJoinTask.adapt(awaiter(done));
1164	+	final ForkJoinTask b = ForkJoinTask.adapt(awaiter(done));
1165	+	final ForkJoinTask c = ForkJoinTask.adapt(awaiter(done));
1166	+	final ForkJoinPool p = singletonPool();
1167	+	try (PoolCleaner cleaner = cleaner(p, done)) {
1168	+	Thread external = new Thread(new CheckedRunnable() {
1169	+	public void realRun() {
1170	+	p.execute(a);
1171	+	p.execute(b);
1172	+	p.execute(c);
1173	+	}});
1174	+	RecursiveAction s = new CheckedRecursiveAction() {
1175	+	protected void realCompute() {
1176	+	external.start();
1177	+	try {
1178	+	external.join();
1179	+	} catch (Exception ex) {
1180	+	threadUnexpectedException(ex);
1181	+	}
1182	+	assertTrue(p.hasQueuedSubmissions());
1183	+	assertTrue(Thread.currentThread() instanceof ForkJoinWorkerThread);
1184	+	ForkJoinTask r = ForkJoinTask.pollSubmission();
1185	+	assertTrue(r == a || r == b || r == c);
1186	+	assertFalse(r.isDone());
1187	+	}};
1188	+	p.invoke(s);
1189	+	}
1190	+	}
1191	+
1192		}

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