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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.146 by jsr166, Mon Apr 11 06:31:42 2016 UTC vs.
Revision 1.168 by jsr166, Mon Jul 18 17:19:01 2016 UTC

#	Line 30 | Line 30 | import java.util.concurrent.ExecutionExc
30		import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.TimeUnit;
36		import java.util.concurrent.atomic.AtomicInteger;
#	Line 459 | Line 460 | public class CompletableFutureTest exten
460		class FailingSupplier extends CheckedAction
461		implements Supplier<Integer>
462		{
463	<	FailingSupplier(ExecutionMode m) { super(m); }
463	>	final CFException ex;
464	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
465		public Integer get() {
466		invoked();
467	<	throw new CFException();
467	>	throw ex;
468		}
469		}
470
471		class FailingConsumer extends CheckedIntegerAction
472		implements Consumer<Integer>
473		{
474	<	FailingConsumer(ExecutionMode m) { super(m); }
474	>	final CFException ex;
475	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
476		public void accept(Integer x) {
477		invoked();
478		value = x;
479	<	throw new CFException();
479	>	throw ex;
480		}
481		}
482
483		class FailingBiConsumer extends CheckedIntegerAction
484		implements BiConsumer<Integer, Integer>
485		{
486	<	FailingBiConsumer(ExecutionMode m) { super(m); }
486	>	final CFException ex;
487	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
488		public void accept(Integer x, Integer y) {
489		invoked();
490		value = subtract(x, y);
491	<	throw new CFException();
491	>	throw ex;
492		}
493		}
494
495		class FailingFunction extends CheckedIntegerAction
496		implements Function<Integer, Integer>
497		{
498	<	FailingFunction(ExecutionMode m) { super(m); }
498	>	final CFException ex;
499	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
500		public Integer apply(Integer x) {
501		invoked();
502		value = x;
503	<	throw new CFException();
503	>	throw ex;
504		}
505		}
506
507		class FailingBiFunction extends CheckedIntegerAction
508		implements BiFunction<Integer, Integer, Integer>
509		{
510	<	FailingBiFunction(ExecutionMode m) { super(m); }
510	>	final CFException ex;
511	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
512		public Integer apply(Integer x, Integer y) {
513		invoked();
514		value = subtract(x, y);
515	<	throw new CFException();
515	>	throw ex;
516		}
517		}
518
519		class FailingRunnable extends CheckedAction implements Runnable {
520	<	FailingRunnable(ExecutionMode m) { super(m); }
520	>	final CFException ex;
521	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
522		public void run() {
523		invoked();
524	<	throw new CFException();
524	>	throw ex;
525		}
526		}
527
#	Line 534 | Line 541 | public class CompletableFutureTest exten
541		class FailingCompletableFutureFunction extends CheckedIntegerAction
542		implements Function<Integer, CompletableFuture<Integer>>
543		{
544	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
544	>	final CFException ex;
545	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
546		public CompletableFuture<Integer> apply(Integer x) {
547		invoked();
548		value = x;
549	<	throw new CFException();
549	>	throw ex;
550	>	}
551	>	}
552	>
553	>	static class CountingRejectingExecutor implements Executor {
554	>	final RejectedExecutionException ex = new RejectedExecutionException();
555	>	final AtomicInteger count = new AtomicInteger(0);
556	>	public void execute(Runnable r) {
557	>	count.getAndIncrement();
558	>	throw ex;
559		}
560		}
561
#	Line 1222 | Line 1239 | public class CompletableFutureTest exten
1239		{
1240		final FailingRunnable r = new FailingRunnable(m);
1241		final CompletableFuture<Void> f = m.runAsync(r);
1242	<	checkCompletedWithWrappedCFException(f);
1242	>	checkCompletedWithWrappedException(f, r.ex);
1243		r.assertInvoked();
1244		}}
1245
1246	+	public void testRunAsync_rejectingExecutor() {
1247	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1248	+	try {
1249	+	CompletableFuture.runAsync(() -> {}, e);
1250	+	shouldThrow();
1251	+	} catch (Throwable t) {
1252	+	assertSame(e.ex, t);
1253	+	}
1254	+
1255	+	assertEquals(1, e.count.get());
1256	+	}
1257	+
1258		/**
1259		* supplyAsync completes with result of supplier
1260		*/
#	Line 1256 | Line 1285 | public class CompletableFutureTest exten
1285		{
1286		FailingSupplier r = new FailingSupplier(m);
1287		CompletableFuture<Integer> f = m.supplyAsync(r);
1288	<	checkCompletedWithWrappedCFException(f);
1288	>	checkCompletedWithWrappedException(f, r.ex);
1289		r.assertInvoked();
1290		}}
1291
1292	+	public void testSupplyAsync_rejectingExecutor() {
1293	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1294	+	try {
1295	+	CompletableFuture.supplyAsync(() -> null, e);
1296	+	shouldThrow();
1297	+	} catch (Throwable t) {
1298	+	assertSame(e.ex, t);
1299	+	}
1300	+
1301	+	assertEquals(1, e.count.get());
1302	+	}
1303	+
1304		// seq completion methods
1305
1306		/**
#	Line 1378 | Line 1419 | public class CompletableFutureTest exten
1419		final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1420		final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1421
1422	<	checkCompletedWithWrappedCFException(h0);
1423	<	checkCompletedWithWrappedCFException(h1);
1424	<	checkCompletedWithWrappedCFException(h2);
1425	<	checkCompletedWithWrappedCFException(h3);
1426	<	checkCompletedWithWrappedCFException(h4);
1427	<	checkCompletedWithWrappedCFException(h5);
1422	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1423	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1424	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1425	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1426	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1427	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1428		checkCompletedNormally(f, v1);
1429		}}
1430
#	Line 1482 | Line 1523 | public class CompletableFutureTest exten
1523		final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1524		final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1525
1526	<	checkCompletedWithWrappedCFException(h0);
1527	<	checkCompletedWithWrappedCFException(h1);
1528	<	checkCompletedWithWrappedCFException(h2);
1529	<	checkCompletedWithWrappedCFException(h3);
1526	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1527	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1528	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1529	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1530		checkCompletedNormally(f, v1);
1531		}}
1532
#	Line 1584 | Line 1625 | public class CompletableFutureTest exten
1625		final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1626		final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1627
1628	<	checkCompletedWithWrappedCFException(h0);
1629	<	checkCompletedWithWrappedCFException(h1);
1630	<	checkCompletedWithWrappedCFException(h2);
1631	<	checkCompletedWithWrappedCFException(h3);
1628	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1629	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1630	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1631	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1632		checkCompletedNormally(f, v1);
1633		}}
1634
#	Line 1749 | Line 1790 | public class CompletableFutureTest exten
1790		assertTrue(snd.complete(w2));
1791		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1792
1793	<	checkCompletedWithWrappedCFException(h1);
1794	<	checkCompletedWithWrappedCFException(h2);
1795	<	checkCompletedWithWrappedCFException(h3);
1793	>	checkCompletedWithWrappedException(h1, r1.ex);
1794	>	checkCompletedWithWrappedException(h2, r2.ex);
1795	>	checkCompletedWithWrappedException(h3, r3.ex);
1796		r1.assertInvoked();
1797		r2.assertInvoked();
1798		r3.assertInvoked();
#	Line 1913 | Line 1954 | public class CompletableFutureTest exten
1954		assertTrue(snd.complete(w2));
1955		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1956
1957	<	checkCompletedWithWrappedCFException(h1);
1958	<	checkCompletedWithWrappedCFException(h2);
1959	<	checkCompletedWithWrappedCFException(h3);
1957	>	checkCompletedWithWrappedException(h1, r1.ex);
1958	>	checkCompletedWithWrappedException(h2, r2.ex);
1959	>	checkCompletedWithWrappedException(h3, r3.ex);
1960		r1.assertInvoked();
1961		r2.assertInvoked();
1962		r3.assertInvoked();
#	Line 2077 | Line 2118 | public class CompletableFutureTest exten
2118		assertTrue(snd.complete(w2));
2119		final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2120
2121	<	checkCompletedWithWrappedCFException(h1);
2122	<	checkCompletedWithWrappedCFException(h2);
2123	<	checkCompletedWithWrappedCFException(h3);
2121	>	checkCompletedWithWrappedException(h1, r1.ex);
2122	>	checkCompletedWithWrappedException(h2, r2.ex);
2123	>	checkCompletedWithWrappedException(h3, r3.ex);
2124		r1.assertInvoked();
2125		r2.assertInvoked();
2126		r3.assertInvoked();
#	Line 2369 | Line 2410 | public class CompletableFutureTest exten
2410		f.complete(v1);
2411		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2412		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2413	<	checkCompletedWithWrappedCFException(h0);
2414	<	checkCompletedWithWrappedCFException(h1);
2415	<	checkCompletedWithWrappedCFException(h2);
2416	<	checkCompletedWithWrappedCFException(h3);
2413	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2414	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2415	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2416	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2417		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2418
2419		g.complete(v2);
#	Line 2381 | Line 2422 | public class CompletableFutureTest exten
2422		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2423		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2424
2425	<	checkCompletedWithWrappedCFException(h4);
2425	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2426		assertTrue(Objects.equals(v1, rs[4].value) ||
2427		Objects.equals(v2, rs[4].value));
2428	<	checkCompletedWithWrappedCFException(h5);
2428	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2429		assertTrue(Objects.equals(v1, rs[5].value) ||
2430		Objects.equals(v2, rs[5].value));
2431
#	Line 2628 | Line 2669 | public class CompletableFutureTest exten
2669		f.complete(v1);
2670		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2671		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2672	<	checkCompletedWithWrappedCFException(h0);
2673	<	checkCompletedWithWrappedCFException(h1);
2674	<	checkCompletedWithWrappedCFException(h2);
2675	<	checkCompletedWithWrappedCFException(h3);
2672	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2673	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2674	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2675	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2676		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2677
2678		g.complete(v2);
#	Line 2640 | Line 2681 | public class CompletableFutureTest exten
2681		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2682		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2683
2684	<	checkCompletedWithWrappedCFException(h4);
2684	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2685		assertTrue(Objects.equals(v1, rs[4].value) ||
2686		Objects.equals(v2, rs[4].value));
2687	<	checkCompletedWithWrappedCFException(h5);
2687	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2688		assertTrue(Objects.equals(v1, rs[5].value) ||
2689		Objects.equals(v2, rs[5].value));
2690
#	Line 2659 | Line 2700 | public class CompletableFutureTest exten
2700		for (ExecutionMode m : ExecutionMode.values())
2701		for (Integer v1 : new Integer[] { 1, null })
2702		for (Integer v2 : new Integer[] { 2, null })
2703	+	for (boolean pushNop : new boolean[] { true, false })
2704		{
2705		final CompletableFuture<Integer> f = new CompletableFuture<>();
2706		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2671 | Line 2713 | public class CompletableFutureTest exten
2713		checkIncomplete(h1);
2714		rs[0].assertNotInvoked();
2715		rs[1].assertNotInvoked();
2716	+	if (pushNop) {          // ad hoc test of intra-completion interference
2717	+	m.thenRun(f, () -> {});
2718	+	m.thenRun(g, () -> {});
2719	+	}
2720		f.complete(v1);
2721		checkCompletedNormally(h0, null);
2722		checkCompletedNormally(h1, null);
#	Line 2883 | Line 2929 | public class CompletableFutureTest exten
2929		assertTrue(f.complete(v1));
2930		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2931		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2932	<	checkCompletedWithWrappedCFException(h0);
2933	<	checkCompletedWithWrappedCFException(h1);
2934	<	checkCompletedWithWrappedCFException(h2);
2935	<	checkCompletedWithWrappedCFException(h3);
2932	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2933	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2934	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2935	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2936		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2937		assertTrue(g.complete(v2));
2938		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2939		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2940	<	checkCompletedWithWrappedCFException(h4);
2941	<	checkCompletedWithWrappedCFException(h5);
2940	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2941	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2942
2943		checkCompletedNormally(f, v1);
2944		checkCompletedNormally(g, v2);
#	Line 2953 | Line 2999 | public class CompletableFutureTest exten
2999		final CompletableFuture<Integer> g = m.thenCompose(f, r);
3000		if (createIncomplete) assertTrue(f.complete(v1));
3001
3002	<	checkCompletedWithWrappedCFException(g);
3002	>	checkCompletedWithWrappedException(g, r.ex);
3003		checkCompletedNormally(f, v1);
3004		}}
3005
#	Line 3062 | Line 3108 | public class CompletableFutureTest exten
3108		}
3109		}
3110
3111	<	public void testAllOf_backwards() throws Exception {
3111	>	public void testAllOf_normal_backwards() throws Exception {
3112		for (int k = 1; k < 10; k++) {
3113		CompletableFuture<Integer>[] fs
3114		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
#	Line 3310 | Line 3356 | public class CompletableFutureTest exten
3356		}
3357
3358		/**
3359	+	* Test submissions to an executor that rejects all tasks.
3360	+	*/
3361	+	public void testRejectingExecutor() {
3362	+	for (Integer v : new Integer[] { 1, null })
3363	+	{
3364	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3365	+
3366	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3367	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3368	+
3369	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3370	+
3371	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3372	+	srcs.add(complete);
3373	+	srcs.add(incomplete);
3374	+
3375	+	for (CompletableFuture<Integer> src : srcs) {
3376	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3377	+	fs.add(src.thenRunAsync(() -> {}, e));
3378	+	fs.add(src.thenAcceptAsync((z) -> {}, e));
3379	+	fs.add(src.thenApplyAsync((z) -> z, e));
3380	+
3381	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3382	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3383	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3384	+
3385	+	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3386	+	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3387	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3388	+
3389	+	fs.add(src.thenComposeAsync((z) -> null, e));
3390	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3391	+	fs.add(src.handleAsync((z, t) -> null, e));
3392	+
3393	+	for (CompletableFuture<?> future : fs) {
3394	+	if (src.isDone())
3395	+	checkCompletedWithWrappedException(future, e.ex);
3396	+	else
3397	+	checkIncomplete(future);
3398	+	}
3399	+	futures.addAll(fs);
3400	+	}
3401	+
3402	+	{
3403	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3404	+
3405	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3406	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3407	+
3408	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3409	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3410	+
3411	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3412	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3413	+
3414	+	for (CompletableFuture<?> future : fs)
3415	+	checkIncomplete(future);
3416	+	futures.addAll(fs);
3417	+	}
3418	+
3419	+	{
3420	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3421	+
3422	+	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3423	+	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3424	+
3425	+	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3426	+	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3427	+
3428	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3429	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3430	+
3431	+	for (CompletableFuture<?> future : fs)
3432	+	checkCompletedWithWrappedException(future, e.ex);
3433	+	futures.addAll(fs);
3434	+	}
3435	+
3436	+	incomplete.complete(v);
3437	+
3438	+	for (CompletableFuture<?> future : futures)
3439	+	checkCompletedWithWrappedException(future, e.ex);
3440	+
3441	+	assertEquals(futures.size(), e.count.get());
3442	+	}}
3443	+
3444	+	/**
3445	+	* Test submissions to an executor that rejects all tasks, but
3446	+	* should never be invoked because the dependent future is
3447	+	* explicitly completed.
3448	+	*/
3449	+	public void testRejectingExecutorNeverInvoked() {
3450	+	for (Integer v : new Integer[] { 1, null })
3451	+	{
3452	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3453	+
3454	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3455	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3456	+
3457	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3458	+
3459	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3460	+	srcs.add(complete);
3461	+	srcs.add(incomplete);
3462	+
3463	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3464	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3465	+	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3466	+	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3467	+
3468	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3469	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3470	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3471	+
3472	+	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3473	+	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3474	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3475	+
3476	+	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3477	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3478	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3479	+
3480	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3481	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3482	+
3483	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3484	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3485	+
3486	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3487	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3488	+
3489	+	for (CompletableFuture<?> future : fs)
3490	+	checkIncomplete(future);
3491	+
3492	+	for (CompletableFuture<?> future : fs)
3493	+	future.complete(null);
3494	+
3495	+	incomplete.complete(v);
3496	+
3497	+	for (CompletableFuture<?> future : fs)
3498	+	checkCompletedNormally(future, null);
3499	+
3500	+	assertEquals(0, e.count.get());
3501	+	}}
3502	+
3503	+	/**
3504		* toCompletableFuture returns this CompletableFuture.
3505		*/
3506		public void testToCompletableFuture() {
#	Line 3632 | Line 3823 | public class CompletableFutureTest exten
3823		//--- tests of implementation details; not part of official tck ---
3824
3825		Object resultOf(CompletableFuture<?> f) {
3826	+	SecurityManager sm = System.getSecurityManager();
3827	+	if (sm != null) {
3828	+	try {
3829	+	System.setSecurityManager(null);
3830	+	} catch (SecurityException giveUp) {
3831	+	return "Reflection not available";
3832	+	}
3833	+	}
3834	+
3835		try {
3836		java.lang.reflect.Field resultField
3837		= CompletableFuture.class.getDeclaredField("result");
3838		resultField.setAccessible(true);
3839		return resultField.get(f);
3840	<	} catch (Throwable t) { throw new AssertionError(t); }
3840	>	} catch (Throwable t) {
3841	>	throw new AssertionError(t);
3842	>	} finally {
3843	>	if (sm != null) System.setSecurityManager(sm);
3844	>	}
3845		}
3846
3847		public void testExceptionPropagationReusesResultObject() {
#	Line 3648 | Line 3852 | public class CompletableFutureTest exten
3852		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3853		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3854
3855	+	final Runnable noopRunnable = new Noop(m);
3856	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3857	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
3858	+
3859		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3860		= new ArrayList<>();
3861
3862	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
3863	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3864	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3865	<
3866	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3867	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3868	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3862	>	funs.add((y) -> m.thenRun(y, noopRunnable));
3863	>	funs.add((y) -> m.thenAccept(y, noopConsumer));
3864	>	funs.add((y) -> m.thenApply(y, incFunction));
3865	>
3866	>	funs.add((y) -> m.runAfterEither(y, incomplete, noopRunnable));
3867	>	funs.add((y) -> m.acceptEither(y, incomplete, noopConsumer));
3868	>	funs.add((y) -> m.applyToEither(y, incomplete, incFunction));
3869
3870	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3870	>	funs.add((y) -> m.runAfterBoth(y, v42, noopRunnable));
3871	>	funs.add((y) -> m.runAfterBoth(v42, y, noopRunnable));
3872		funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3873	+	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3874		funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3875	+	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
3876
3877		funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3878
3879		funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3880
3881	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3882	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3881	>	funs.add((y) -> CompletableFuture.allOf(y));
3882	>	funs.add((y) -> CompletableFuture.allOf(y, v42));
3883	>	funs.add((y) -> CompletableFuture.allOf(v42, y));
3884	>	funs.add((y) -> CompletableFuture.anyOf(y));
3885	>	funs.add((y) -> CompletableFuture.anyOf(y, incomplete));
3886	>	funs.add((y) -> CompletableFuture.anyOf(incomplete, y));
3887
3888		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3889		fun : funs) {
3890		CompletableFuture<Integer> f = new CompletableFuture<>();
3891		f.completeExceptionally(ex);
3892	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3892	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3893		checkCompletedWithWrappedException(src, ex);
3894		CompletableFuture<?> dep = fun.apply(src);
3895		checkCompletedWithWrappedException(dep, ex);
#	Line 3684 | Line 3899 | public class CompletableFutureTest exten
3899		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3900		fun : funs) {
3901		CompletableFuture<Integer> f = new CompletableFuture<>();
3902	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3902	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3903		CompletableFuture<?> dep = fun.apply(src);
3904		f.completeExceptionally(ex);
3905		checkCompletedWithWrappedException(src, ex);
#	Line 3698 | Line 3913 | public class CompletableFutureTest exten
3913		CompletableFuture<Integer> f = new CompletableFuture<>();
3914		f.cancel(mayInterruptIfRunning);
3915		checkCancelled(f);
3916	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3916	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3917		checkCompletedWithWrappedCancellationException(src);
3918		CompletableFuture<?> dep = fun.apply(src);
3919		checkCompletedWithWrappedCancellationException(dep);
#	Line 3709 | Line 3924 | public class CompletableFutureTest exten
3924		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3925		fun : funs) {
3926		CompletableFuture<Integer> f = new CompletableFuture<>();
3927	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3927	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3928		CompletableFuture<?> dep = fun.apply(src);
3929		f.cancel(mayInterruptIfRunning);
3930		checkCancelled(f);
#	Line 3720 | Line 3935 | public class CompletableFutureTest exten
3935		}}
3936
3937		/**
3938	<	* Minimal completion stages throw UOE for all non-CompletionStage methods
3938	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3939		*/
3940		public void testMinimalCompletionStage_minimality() {
3941		if (!testImplementationDetails) return;
#	Line 3749 | Line 3964 | public class CompletableFutureTest exten
3964		.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3965		.collect(Collectors.toList());
3966
3967	<	CompletionStage<Integer> minimalStage =
3968	<	new CompletableFuture<Integer>().minimalCompletionStage();
3967	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
3968	>	stages.add(new CompletableFuture<Integer>().minimalCompletionStage());
3969	>	stages.add(CompletableFuture.completedStage(1));
3970	>	stages.add(CompletableFuture.failedStage(new CFException()));
3971
3972		List<Method> bugs = new ArrayList<>();
3973		for (Method method : allMethods) {
#	Line 3766 | Line 3983 | public class CompletableFutureTest exten
3983		else if (parameterTypes[i] == long.class)
3984		args[i] = 0L;
3985		}
3986	<	try {
3987	<	method.invoke(minimalStage, args);
3988	<	bugs.add(method);
3772	<	}
3773	<	catch (java.lang.reflect.InvocationTargetException expected) {
3774	<	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3986	>	for (CompletionStage<Integer> stage : stages) {
3987	>	try {
3988	>	method.invoke(stage, args);
3989		bugs.add(method);
3776	–	// expected.getCause().printStackTrace();
3990		}
3991	+	catch (java.lang.reflect.InvocationTargetException expected) {
3992	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3993	+	bugs.add(method);
3994	+	// expected.getCause().printStackTrace();
3995	+	}
3996	+	}
3997	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3998		}
3779	–	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3999		}
4000		if (!bugs.isEmpty())
4001	<	throw new Error("Methods did not throw UOE: " + bugs.toString());
4001	>	throw new Error("Methods did not throw UOE: " + bugs);
4002		}
4003
4004		static class Monad {
#	Line 3928 | Line 4147 | public class CompletableFutureTest exten
4147		Monad.plus(godot, Monad.unit(5L)));
4148		}
4149
4150	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4151	+	public void testRecursiveChains() throws Throwable {
4152	+	for (ExecutionMode m : ExecutionMode.values())
4153	+	for (boolean addDeadEnds : new boolean[] { true, false })
4154	+	{
4155	+	final int val = 42;
4156	+	final int n = expensiveTests ? 1_000 : 2;
4157	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4158	+	CompletableFuture<Integer> tail = head;
4159	+	for (int i = 0; i < n; i++) {
4160	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4161	+	tail = m.thenApply(tail, v -> v + 1);
4162	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4163	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4164	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4165	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4166	+	}
4167	+	head.complete(val);
4168	+	assertEquals(val + 3 * n, (int) tail.join());
4169	+	}}
4170	+
4171		/**
4172		* A single CompletableFuture with many dependents.
4173		* A demo of scalability - runtime is O(n).
4174		*/
4175		public void testManyDependents() throws Throwable {
4176	<	final int n = 1_000;
4176	>	final int n = expensiveTests ? 1_000_000 : 10;
4177		final CompletableFuture<Void> head = new CompletableFuture<>();
4178		final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4179		final AtomicInteger count = new AtomicInteger(0);
#	Line 3960 | Line 4200 | public class CompletableFutureTest exten
4200		assertEquals(5 * 3 * n, count.get());
4201		}
4202
4203	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4204	+	public void testCoCompletionGarbageRetention() throws Throwable {
4205	+	final int n = expensiveTests ? 1_000_000 : 10;
4206	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4207	+	CompletableFuture<Integer> f;
4208	+	for (int i = 0; i < n; i++) {
4209	+	f = new CompletableFuture<>();
4210	+	f.runAfterEither(incomplete, () -> {});
4211	+	f.complete(null);
4212	+
4213	+	f = new CompletableFuture<>();
4214	+	f.acceptEither(incomplete, (x) -> {});
4215	+	f.complete(null);
4216	+
4217	+	f = new CompletableFuture<>();
4218	+	f.applyToEither(incomplete, (x) -> x);
4219	+	f.complete(null);
4220	+
4221	+	f = new CompletableFuture<>();
4222	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4223	+	f.complete(null);
4224	+	}
4225	+
4226	+	for (int i = 0; i < n; i++) {
4227	+	f = new CompletableFuture<>();
4228	+	incomplete.runAfterEither(f, () -> {});
4229	+	f.complete(null);
4230	+
4231	+	f = new CompletableFuture<>();
4232	+	incomplete.acceptEither(f, (x) -> {});
4233	+	f.complete(null);
4234	+
4235	+	f = new CompletableFuture<>();
4236	+	incomplete.applyToEither(f, (x) -> x);
4237	+	f.complete(null);
4238	+
4239	+	f = new CompletableFuture<>();
4240	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4241	+	f.complete(null);
4242	+	}
4243	+	}
4244	+
4245	+	/**
4246	+	* Checks for garbage retention with anyOf.
4247	+	* Following used to fail with OOME:
4248	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck
4249	+	*/
4250	+	public void testAnyOfGarbageRetention() throws Throwable {
4251	+	for (Integer v : new Integer[] { 1, null })
4252	+	{
4253	+	final int n = expensiveTests ? 100_000 : 10;
4254	+	CompletableFuture<Integer>[] fs
4255	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4256	+	for (int i = 0; i < fs.length; i++)
4257	+	fs[i] = new CompletableFuture<>();
4258	+	fs[fs.length - 1].complete(v);
4259	+	for (int i = 0; i < n; i++)
4260	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4261	+	}}
4262	+
4263	+	/**
4264	+	* Checks for garbage retention with allOf.
4265	+	*
4266	+	* As of 2016-07, fails with OOME:
4267	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4268	+	*/
4269	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4270	+	final int n = expensiveTests ? 100_000 : 10;
4271	+	CompletableFuture<Integer>[] fs
4272	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4273	+	for (int i = 0; i < fs.length; i++)
4274	+	fs[i] = new CompletableFuture<>();
4275	+	for (int i = 0; i < n; i++)
4276	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4277	+	}
4278	+
4279	+	/**
4280	+	* Checks for garbage retention when a dependent future is
4281	+	* cancelled and garbage-collected.
4282	+	*
4283	+	* As of 2016-07, fails with OOME:
4284	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4285	+	*/
4286	+	public void testCancelledGarbageRetention() throws Throwable {
4287	+	final int n = expensiveTests ? 100_000 : 10;
4288	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4289	+	for (int i = 0; i < n; i++)
4290	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4291	+	}
4292	+
4293		//     static <U> U join(CompletionStage<U> stage) {
4294		//         CompletableFuture<U> f = new CompletableFuture<>();
4295		//         stage.whenComplete((v, ex) -> {

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