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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.181 by jsr166, Sat Nov 26 20:32:24 2016 UTC vs.
Revision 1.218 by jsr166, Sat Nov 24 18:24:14 2018 UTC

#	Line 41 | Line 41 | import java.util.function.Function;
41		import java.util.function.Predicate;
42		import java.util.function.Supplier;
43
44	–	import junit.framework.AssertionFailedError;
44		import junit.framework.Test;
45		import junit.framework.TestSuite;
46
#	Line 59 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("Not completed"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	checkTimedGet(f, value);
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79
80	+	assertEquals(expectedValue, f.join());
81	+	assertEquals(expectedValue, f.getNow(null));
82	+
83	+	T result = null;
84		try {
85	<	assertEquals(value, f.join());
79	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
80	<	try {
81	<	assertEquals(value, f.getNow(null));
82	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
83	<	try {
84	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95		/**
96		* Returns the "raw" internal exceptional completion of f,
97		* without any additional wrapping with CompletionException.
98		*/
99	<	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
100	<	// handle (and whenComplete) can distinguish between "direct"
101	<	// and "wrapped" exceptional completion
102	<	return f.handle((U u, Throwable t) -> t).join();
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103		}
104
105		void checkCompletedExceptionally(CompletableFuture<?> f,
#	Line 142 | Line 145 | public class CompletableFutureTest exten
145		assertFalse(f.isCancelled());
146		assertTrue(f.isDone());
147		assertTrue(f.isCompletedExceptionally());
148	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151		void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
#	Line 197 | Line 200 | public class CompletableFutureTest exten
200		assertTrue(f.isDone());
201		assertTrue(f.isCompletedExceptionally());
202		assertTrue(f.isCancelled());
203	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 296 | Line 299 | public class CompletableFutureTest exten
299		}
300
301		f = new CompletableFuture<>();
302	<	f.completeExceptionally(ex = new CFException());
302	>	f.completeExceptionally(new CFException());
303		f.obtrudeValue(v1);
304		checkCompletedNormally(f, v1);
305		f.obtrudeException(ex = new CFException());
#	Line 333 | Line 336 | public class CompletableFutureTest exten
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346
347	+	public void testToString_normal() {
348	+	CompletableFuture<String> f = new CompletableFuture<>();
349		assertTrue(f.complete("foo"));
350	<	assertTrue(f.toString().contains("[Completed normally]"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355
356	<	f = new CompletableFuture<String>();
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364
365	+	public void testToString_cancelled() {
366		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	<	f = new CompletableFuture<String>();
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368		assertTrue(f.cancel(mayInterruptIfRunning));
369	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373		}
374		}
375
#	Line 531 | Line 551 | public class CompletableFutureTest exten
551		public CompletableFuture<Integer> apply(Integer x) {
552		invoked();
553		value = x;
554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
555	<	assertTrue(f.complete(inc(x)));
556	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556	>	}
557	>
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567	>	}
568	>
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576		}
577		}
578
#	Line 652 | Line 691 | public class CompletableFutureTest exten
691		Function<? super T,U> a) {
692		return f.applyToEither(g, a);
693		}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703		},
656	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 726 | Line 773 | public class CompletableFutureTest exten
773		Function<? super T,U> a) {
774		return f.applyToEitherAsync(g, a);
775		}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787		},
788
789		EXECUTOR {
#	Line 799 | Line 857 | public class CompletableFutureTest exten
857		Function<? super T,U> a) {
858		return f.applyToEitherAsync(g, a, new ThreadExecutor());
859		}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870		};
871
872		public abstract void checkExecutionMode();
#	Line 841 | Line 909 | public class CompletableFutureTest exten
909		(CompletableFuture<T> f,
910		CompletionStage<? extends T> g,
911		Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918		}
919
920		/**
#	Line 848 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927		for (Integer v1 : new Integer[] { 1, null })
928		{
854	–	final AtomicInteger a = new AtomicInteger(0);
929		final CompletableFuture<Integer> f = new CompletableFuture<>();
930		if (!createIncomplete) assertTrue(f.complete(v1));
931	<	final CompletableFuture<Integer> g = f.exceptionally
932	<	((Throwable t) -> {
859	<	a.getAndIncrement();
931	>	final CompletableFuture<Integer> g = m.exceptionally
932	>	(f, (Throwable t) -> {
933		threadFail("should not be called");
934		return null;            // unreached
935		});
#	Line 864 | Line 937 | public class CompletableFutureTest exten
937
938		checkCompletedNormally(g, v1);
939		checkCompletedNormally(f, v1);
867	–	assertEquals(0, a.get());
940		}}
941
942		/**
#	Line 872 | Line 944 | public class CompletableFutureTest exten
944		* exception
945		*/
946		public void testExceptionally_exceptionalCompletion() {
947	+	for (ExecutionMode m : ExecutionMode.values())
948		for (boolean createIncomplete : new boolean[] { true, false })
949		for (Integer v1 : new Integer[] { 1, null })
950		{
951	<	final AtomicInteger a = new AtomicInteger(0);
951	>	final AtomicInteger ran = new AtomicInteger(0);
952		final CFException ex = new CFException();
953		final CompletableFuture<Integer> f = new CompletableFuture<>();
954		if (!createIncomplete) f.completeExceptionally(ex);
955	<	final CompletableFuture<Integer> g = f.exceptionally
956	<	((Throwable t) -> {
957	<	ExecutionMode.SYNC.checkExecutionMode();
958	<	threadAssertSame(t, ex);
959	<	a.getAndIncrement();
955	>	final CompletableFuture<Integer> g = m.exceptionally
956	>	(f, (Throwable t) -> {
957	>	m.checkExecutionMode();
958	>	assertSame(t, ex);
959	>	ran.getAndIncrement();
960		return v1;
961		});
962		if (createIncomplete) f.completeExceptionally(ex);
963
964		checkCompletedNormally(g, v1);
965	<	assertEquals(1, a.get());
965	>	assertEquals(1, ran.get());
966		}}
967
968		/**
#	Line 897 | Line 970 | public class CompletableFutureTest exten
970		* exceptionally with that exception
971		*/
972		public void testExceptionally_exceptionalCompletionActionFailed() {
973	+	for (ExecutionMode m : ExecutionMode.values())
974		for (boolean createIncomplete : new boolean[] { true, false })
975		{
976	<	final AtomicInteger a = new AtomicInteger(0);
976	>	final AtomicInteger ran = new AtomicInteger(0);
977		final CFException ex1 = new CFException();
978		final CFException ex2 = new CFException();
979		final CompletableFuture<Integer> f = new CompletableFuture<>();
980		if (!createIncomplete) f.completeExceptionally(ex1);
981	<	final CompletableFuture<Integer> g = f.exceptionally
982	<	((Throwable t) -> {
983	<	ExecutionMode.SYNC.checkExecutionMode();
984	<	threadAssertSame(t, ex1);
985	<	a.getAndIncrement();
981	>	final CompletableFuture<Integer> g = m.exceptionally
982	>	(f, (Throwable t) -> {
983	>	m.checkExecutionMode();
984	>	assertSame(t, ex1);
985	>	ran.getAndIncrement();
986		throw ex2;
987		});
988		if (createIncomplete) f.completeExceptionally(ex1);
989
990		checkCompletedWithWrappedException(g, ex2);
991		checkCompletedExceptionally(f, ex1);
992	<	assertEquals(1, a.get());
992	>	assertEquals(1, ran.get());
993		}}
994
995		/**
#	Line 927 | Line 1001 | public class CompletableFutureTest exten
1001		for (boolean createIncomplete : new boolean[] { true, false })
1002		for (Integer v1 : new Integer[] { 1, null })
1003		{
1004	<	final AtomicInteger a = new AtomicInteger(0);
1004	>	final AtomicInteger ran = new AtomicInteger(0);
1005		final CompletableFuture<Integer> f = new CompletableFuture<>();
1006		if (!createIncomplete) assertTrue(f.complete(v1));
1007		final CompletableFuture<Integer> g = m.whenComplete
1008		(f,
1009		(Integer result, Throwable t) -> {
1010		m.checkExecutionMode();
1011	<	threadAssertSame(result, v1);
1012	<	threadAssertNull(t);
1013	<	a.getAndIncrement();
1011	>	assertSame(result, v1);
1012	>	assertNull(t);
1013	>	ran.getAndIncrement();
1014		});
1015		if (createIncomplete) assertTrue(f.complete(v1));
1016
1017		checkCompletedNormally(g, v1);
1018		checkCompletedNormally(f, v1);
1019	<	assertEquals(1, a.get());
1019	>	assertEquals(1, ran.get());
1020		}}
1021
1022		/**
#	Line 953 | Line 1027 | public class CompletableFutureTest exten
1027		for (ExecutionMode m : ExecutionMode.values())
1028		for (boolean createIncomplete : new boolean[] { true, false })
1029		{
1030	<	final AtomicInteger a = new AtomicInteger(0);
1030	>	final AtomicInteger ran = new AtomicInteger(0);
1031		final CFException ex = new CFException();
1032		final CompletableFuture<Integer> f = new CompletableFuture<>();
1033		if (!createIncomplete) f.completeExceptionally(ex);
#	Line 961 | Line 1035 | public class CompletableFutureTest exten
1035		(f,
1036		(Integer result, Throwable t) -> {
1037		m.checkExecutionMode();
1038	<	threadAssertNull(result);
1039	<	threadAssertSame(t, ex);
1040	<	a.getAndIncrement();
1038	>	assertNull(result);
1039	>	assertSame(t, ex);
1040	>	ran.getAndIncrement();
1041		});
1042		if (createIncomplete) f.completeExceptionally(ex);
1043
1044		checkCompletedWithWrappedException(g, ex);
1045		checkCompletedExceptionally(f, ex);
1046	<	assertEquals(1, a.get());
1046	>	assertEquals(1, ran.get());
1047		}}
1048
1049		/**
#	Line 981 | Line 1055 | public class CompletableFutureTest exten
1055		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1056		for (boolean createIncomplete : new boolean[] { true, false })
1057		{
1058	<	final AtomicInteger a = new AtomicInteger(0);
1058	>	final AtomicInteger ran = new AtomicInteger(0);
1059		final CompletableFuture<Integer> f = new CompletableFuture<>();
1060		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1061		final CompletableFuture<Integer> g = m.whenComplete
1062		(f,
1063		(Integer result, Throwable t) -> {
1064		m.checkExecutionMode();
1065	<	threadAssertNull(result);
1066	<	threadAssertTrue(t instanceof CancellationException);
1067	<	a.getAndIncrement();
1065	>	assertNull(result);
1066	>	assertTrue(t instanceof CancellationException);
1067	>	ran.getAndIncrement();
1068		});
1069		if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1070
1071		checkCompletedWithWrappedCancellationException(g);
1072		checkCancelled(f);
1073	<	assertEquals(1, a.get());
1073	>	assertEquals(1, ran.get());
1074		}}
1075
1076		/**
#	Line 1008 | Line 1082 | public class CompletableFutureTest exten
1082		for (ExecutionMode m : ExecutionMode.values())
1083		for (Integer v1 : new Integer[] { 1, null })
1084		{
1085	<	final AtomicInteger a = new AtomicInteger(0);
1085	>	final AtomicInteger ran = new AtomicInteger(0);
1086		final CFException ex = new CFException();
1087		final CompletableFuture<Integer> f = new CompletableFuture<>();
1088		if (!createIncomplete) assertTrue(f.complete(v1));
#	Line 1016 | Line 1090 | public class CompletableFutureTest exten
1090		(f,
1091		(Integer result, Throwable t) -> {
1092		m.checkExecutionMode();
1093	<	threadAssertSame(result, v1);
1094	<	threadAssertNull(t);
1095	<	a.getAndIncrement();
1093	>	assertSame(result, v1);
1094	>	assertNull(t);
1095	>	ran.getAndIncrement();
1096		throw ex;
1097		});
1098		if (createIncomplete) assertTrue(f.complete(v1));
1099
1100		checkCompletedWithWrappedException(g, ex);
1101		checkCompletedNormally(f, v1);
1102	<	assertEquals(1, a.get());
1102	>	assertEquals(1, ran.get());
1103		}}
1104
1105		/**
#	Line 1037 | Line 1111 | public class CompletableFutureTest exten
1111		for (boolean createIncomplete : new boolean[] { true, false })
1112		for (ExecutionMode m : ExecutionMode.values())
1113		{
1114	<	final AtomicInteger a = new AtomicInteger(0);
1114	>	final AtomicInteger ran = new AtomicInteger(0);
1115		final CFException ex1 = new CFException();
1116		final CFException ex2 = new CFException();
1117		final CompletableFuture<Integer> f = new CompletableFuture<>();
#	Line 1047 | Line 1121 | public class CompletableFutureTest exten
1121		(f,
1122		(Integer result, Throwable t) -> {
1123		m.checkExecutionMode();
1124	<	threadAssertSame(t, ex1);
1125	<	threadAssertNull(result);
1126	<	a.getAndIncrement();
1124	>	assertSame(t, ex1);
1125	>	assertNull(result);
1126	>	ran.getAndIncrement();
1127		throw ex2;
1128		});
1129		if (createIncomplete) f.completeExceptionally(ex1);
#	Line 1060 | Line 1134 | public class CompletableFutureTest exten
1134		assertEquals(1, ex1.getSuppressed().length);
1135		assertSame(ex2, ex1.getSuppressed()[0]);
1136		}
1137	<	assertEquals(1, a.get());
1137	>	assertEquals(1, ran.get());
1138		}}
1139
1140		/**
#	Line 1073 | Line 1147 | public class CompletableFutureTest exten
1147		for (Integer v1 : new Integer[] { 1, null })
1148		{
1149		final CompletableFuture<Integer> f = new CompletableFuture<>();
1150	<	final AtomicInteger a = new AtomicInteger(0);
1150	>	final AtomicInteger ran = new AtomicInteger(0);
1151		if (!createIncomplete) assertTrue(f.complete(v1));
1152		final CompletableFuture<Integer> g = m.handle
1153		(f,
1154		(Integer result, Throwable t) -> {
1155		m.checkExecutionMode();
1156	<	threadAssertSame(result, v1);
1157	<	threadAssertNull(t);
1158	<	a.getAndIncrement();
1156	>	assertSame(result, v1);
1157	>	assertNull(t);
1158	>	ran.getAndIncrement();
1159		return inc(v1);
1160		});
1161		if (createIncomplete) assertTrue(f.complete(v1));
1162
1163		checkCompletedNormally(g, inc(v1));
1164		checkCompletedNormally(f, v1);
1165	<	assertEquals(1, a.get());
1165	>	assertEquals(1, ran.get());
1166		}}
1167
1168		/**
#	Line 1101 | Line 1175 | public class CompletableFutureTest exten
1175		for (Integer v1 : new Integer[] { 1, null })
1176		{
1177		final CompletableFuture<Integer> f = new CompletableFuture<>();
1178	<	final AtomicInteger a = new AtomicInteger(0);
1178	>	final AtomicInteger ran = new AtomicInteger(0);
1179		final CFException ex = new CFException();
1180		if (!createIncomplete) f.completeExceptionally(ex);
1181		final CompletableFuture<Integer> g = m.handle
1182		(f,
1183		(Integer result, Throwable t) -> {
1184		m.checkExecutionMode();
1185	<	threadAssertNull(result);
1186	<	threadAssertSame(t, ex);
1187	<	a.getAndIncrement();
1185	>	assertNull(result);
1186	>	assertSame(t, ex);
1187	>	ran.getAndIncrement();
1188		return v1;
1189		});
1190		if (createIncomplete) f.completeExceptionally(ex);
1191
1192		checkCompletedNormally(g, v1);
1193		checkCompletedExceptionally(f, ex);
1194	<	assertEquals(1, a.get());
1194	>	assertEquals(1, ran.get());
1195		}}
1196
1197		/**
#	Line 1131 | Line 1205 | public class CompletableFutureTest exten
1205		for (Integer v1 : new Integer[] { 1, null })
1206		{
1207		final CompletableFuture<Integer> f = new CompletableFuture<>();
1208	<	final AtomicInteger a = new AtomicInteger(0);
1208	>	final AtomicInteger ran = new AtomicInteger(0);
1209		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1210		final CompletableFuture<Integer> g = m.handle
1211		(f,
1212		(Integer result, Throwable t) -> {
1213		m.checkExecutionMode();
1214	<	threadAssertNull(result);
1215	<	threadAssertTrue(t instanceof CancellationException);
1216	<	a.getAndIncrement();
1214	>	assertNull(result);
1215	>	assertTrue(t instanceof CancellationException);
1216	>	ran.getAndIncrement();
1217		return v1;
1218		});
1219		if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1220
1221		checkCompletedNormally(g, v1);
1222		checkCancelled(f);
1223	<	assertEquals(1, a.get());
1223	>	assertEquals(1, ran.get());
1224		}}
1225
1226		/**
#	Line 1159 | Line 1233 | public class CompletableFutureTest exten
1233		for (Integer v1 : new Integer[] { 1, null })
1234		{
1235		final CompletableFuture<Integer> f = new CompletableFuture<>();
1236	<	final AtomicInteger a = new AtomicInteger(0);
1236	>	final AtomicInteger ran = new AtomicInteger(0);
1237		final CFException ex = new CFException();
1238		if (!createIncomplete) assertTrue(f.complete(v1));
1239		final CompletableFuture<Integer> g = m.handle
1240		(f,
1241		(Integer result, Throwable t) -> {
1242		m.checkExecutionMode();
1243	<	threadAssertSame(result, v1);
1244	<	threadAssertNull(t);
1245	<	a.getAndIncrement();
1243	>	assertSame(result, v1);
1244	>	assertNull(t);
1245	>	ran.getAndIncrement();
1246		throw ex;
1247		});
1248		if (createIncomplete) assertTrue(f.complete(v1));
1249
1250		checkCompletedWithWrappedException(g, ex);
1251		checkCompletedNormally(f, v1);
1252	<	assertEquals(1, a.get());
1252	>	assertEquals(1, ran.get());
1253		}}
1254
1255		/**
#	Line 1187 | Line 1261 | public class CompletableFutureTest exten
1261		for (boolean createIncomplete : new boolean[] { true, false })
1262		for (ExecutionMode m : ExecutionMode.values())
1263		{
1264	<	final AtomicInteger a = new AtomicInteger(0);
1264	>	final AtomicInteger ran = new AtomicInteger(0);
1265		final CFException ex1 = new CFException();
1266		final CFException ex2 = new CFException();
1267		final CompletableFuture<Integer> f = new CompletableFuture<>();
#	Line 1197 | Line 1271 | public class CompletableFutureTest exten
1271		(f,
1272		(Integer result, Throwable t) -> {
1273		m.checkExecutionMode();
1274	<	threadAssertNull(result);
1275	<	threadAssertSame(ex1, t);
1276	<	a.getAndIncrement();
1274	>	assertNull(result);
1275	>	assertSame(ex1, t);
1276	>	ran.getAndIncrement();
1277		throw ex2;
1278		});
1279		if (createIncomplete) f.completeExceptionally(ex1);
1280
1281		checkCompletedWithWrappedException(g, ex2);
1282		checkCompletedExceptionally(f, ex1);
1283	<	assertEquals(1, a.get());
1283	>	assertEquals(1, ran.get());
1284		}}
1285
1286		/**
#	Line 1242 | Line 1316 | public class CompletableFutureTest exten
1316		r.assertInvoked();
1317		}}
1318
1319	+	@SuppressWarnings("FutureReturnValueIgnored")
1320		public void testRunAsync_rejectingExecutor() {
1321		CountingRejectingExecutor e = new CountingRejectingExecutor();
1322		try {
#	Line 1288 | Line 1363 | public class CompletableFutureTest exten
1363		r.assertInvoked();
1364		}}
1365
1366	+	@SuppressWarnings("FutureReturnValueIgnored")
1367		public void testSupplyAsync_rejectingExecutor() {
1368		CountingRejectingExecutor e = new CountingRejectingExecutor();
1369		try {
#	Line 2562 | Line 2638 | public class CompletableFutureTest exten
2638
2639		// unspecified behavior - both source completions available
2640		try {
2641	<	assertEquals(null, h0.join());
2641	>	assertNull(h0.join());
2642		rs[0].assertValue(v1);
2643		} catch (CompletionException ok) {
2644		checkCompletedWithWrappedException(h0, ex);
2645		rs[0].assertNotInvoked();
2646		}
2647		try {
2648	<	assertEquals(null, h1.join());
2648	>	assertNull(h1.join());
2649		rs[1].assertValue(v1);
2650		} catch (CompletionException ok) {
2651		checkCompletedWithWrappedException(h1, ex);
2652		rs[1].assertNotInvoked();
2653		}
2654		try {
2655	<	assertEquals(null, h2.join());
2655	>	assertNull(h2.join());
2656		rs[2].assertValue(v1);
2657		} catch (CompletionException ok) {
2658		checkCompletedWithWrappedException(h2, ex);
2659		rs[2].assertNotInvoked();
2660		}
2661		try {
2662	<	assertEquals(null, h3.join());
2662	>	assertNull(h3.join());
2663		rs[3].assertValue(v1);
2664		} catch (CompletionException ok) {
2665		checkCompletedWithWrappedException(h3, ex);
#	Line 2822 | Line 2898 | public class CompletableFutureTest exten
2898
2899		// unspecified behavior - both source completions available
2900		try {
2901	<	assertEquals(null, h0.join());
2901	>	assertNull(h0.join());
2902		rs[0].assertInvoked();
2903		} catch (CompletionException ok) {
2904		checkCompletedWithWrappedException(h0, ex);
2905		rs[0].assertNotInvoked();
2906		}
2907		try {
2908	<	assertEquals(null, h1.join());
2908	>	assertNull(h1.join());
2909		rs[1].assertInvoked();
2910		} catch (CompletionException ok) {
2911		checkCompletedWithWrappedException(h1, ex);
2912		rs[1].assertNotInvoked();
2913		}
2914		try {
2915	<	assertEquals(null, h2.join());
2915	>	assertNull(h2.join());
2916		rs[2].assertInvoked();
2917		} catch (CompletionException ok) {
2918		checkCompletedWithWrappedException(h2, ex);
2919		rs[2].assertNotInvoked();
2920		}
2921		try {
2922	<	assertEquals(null, h3.join());
2922	>	assertNull(h3.join());
2923		rs[3].assertInvoked();
2924		} catch (CompletionException ok) {
2925		checkCompletedWithWrappedException(h3, ex);
#	Line 3040 | Line 3116 | public class CompletableFutureTest exten
3116		case 0:
3117		assertTrue(f.complete(v1));
3118		assertTrue(g.completeExceptionally(ex));
3119	<	h = m.thenCompose(f, (x -> g));
3119	>	h = m.thenCompose(f, x -> g);
3120		break;
3121		case 1:
3122		assertTrue(f.complete(v1));
3123	<	h = m.thenCompose(f, (x -> g));
3123	>	h = m.thenCompose(f, x -> g);
3124		assertTrue(g.completeExceptionally(ex));
3125		break;
3126		case 2:
3127		assertTrue(g.completeExceptionally(ex));
3128		assertTrue(f.complete(v1));
3129	<	h = m.thenCompose(f, (x -> g));
3129	>	h = m.thenCompose(f, x -> g);
3130		break;
3131		case 3:
3132		assertTrue(g.completeExceptionally(ex));
3133	<	h = m.thenCompose(f, (x -> g));
3133	>	h = m.thenCompose(f, x -> g);
3134		assertTrue(f.complete(v1));
3135		break;
3136		case 4:
3137	<	h = m.thenCompose(f, (x -> g));
3137	>	h = m.thenCompose(f, x -> g);
3138		assertTrue(f.complete(v1));
3139		assertTrue(g.completeExceptionally(ex));
3140		break;
3141		case 5:
3142	<	h = m.thenCompose(f, (x -> g));
3142	>	h = m.thenCompose(f, x -> g);
3143		assertTrue(f.complete(v1));
3144		assertTrue(g.completeExceptionally(ex));
3145		break;
#	Line 3075 | Line 3151 | public class CompletableFutureTest exten
3151		checkCompletedNormally(f, v1);
3152		}}
3153
3154	+	/**
3155	+	* exceptionallyCompose result completes normally after normal
3156	+	* completion of source
3157	+	*/
3158	+	public void testExceptionallyCompose_normalCompletion() {
3159	+	for (ExecutionMode m : ExecutionMode.values())
3160	+	for (boolean createIncomplete : new boolean[] { true, false })
3161	+	for (Integer v1 : new Integer[] { 1, null })
3162	+	{
3163	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3164	+	final ExceptionalCompletableFutureFunction r =
3165	+	new ExceptionalCompletableFutureFunction(m);
3166	+	if (!createIncomplete) assertTrue(f.complete(v1));
3167	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3168	+	if (createIncomplete) assertTrue(f.complete(v1));
3169	+
3170	+	checkCompletedNormally(f, v1);
3171	+	checkCompletedNormally(g, v1);
3172	+	r.assertNotInvoked();
3173	+	}}
3174	+
3175	+	/**
3176	+	* exceptionallyCompose result completes normally after exceptional
3177	+	* completion of source
3178	+	*/
3179	+	public void testExceptionallyCompose_exceptionalCompletion() {
3180	+	for (ExecutionMode m : ExecutionMode.values())
3181	+	for (boolean createIncomplete : new boolean[] { true, false })
3182	+	{
3183	+	final CFException ex = new CFException();
3184	+	final ExceptionalCompletableFutureFunction r =
3185	+	new ExceptionalCompletableFutureFunction(m);
3186	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3187	+	if (!createIncomplete) f.completeExceptionally(ex);
3188	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3189	+	if (createIncomplete) f.completeExceptionally(ex);
3190	+
3191	+	checkCompletedExceptionally(f, ex);
3192	+	checkCompletedNormally(g, r.value);
3193	+	r.assertInvoked();
3194	+	}}
3195	+
3196	+	/**
3197	+	* exceptionallyCompose completes exceptionally on exception if action does
3198	+	*/
3199	+	public void testExceptionallyCompose_actionFailed() {
3200	+	for (ExecutionMode m : ExecutionMode.values())
3201	+	for (boolean createIncomplete : new boolean[] { true, false })
3202	+	{
3203	+	final CFException ex = new CFException();
3204	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3205	+	final FailingExceptionalCompletableFutureFunction r
3206	+	= new FailingExceptionalCompletableFutureFunction(m);
3207	+	if (!createIncomplete) f.completeExceptionally(ex);
3208	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3209	+	if (createIncomplete) f.completeExceptionally(ex);
3210	+
3211	+	checkCompletedExceptionally(f, ex);
3212	+	checkCompletedWithWrappedException(g, r.ex);
3213	+	r.assertInvoked();
3214	+	}}
3215	+
3216	+	/**
3217	+	* exceptionallyCompose result completes exceptionally if the
3218	+	* result of the action does
3219	+	*/
3220	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3221	+	for (ExecutionMode m : ExecutionMode.values())
3222	+	for (int order = 0; order < 6; order++)
3223	+	{
3224	+	final CFException ex0 = new CFException();
3225	+	final CFException ex = new CFException();
3226	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3227	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3228	+	final CompletableFuture<Integer> h;
3229	+	// Test all permutations of orders
3230	+	switch (order) {
3231	+	case 0:
3232	+	assertTrue(f.completeExceptionally(ex0));
3233	+	assertTrue(g.completeExceptionally(ex));
3234	+	h = m.exceptionallyCompose(f, x -> g);
3235	+	break;
3236	+	case 1:
3237	+	assertTrue(f.completeExceptionally(ex0));
3238	+	h = m.exceptionallyCompose(f, x -> g);
3239	+	assertTrue(g.completeExceptionally(ex));
3240	+	break;
3241	+	case 2:
3242	+	assertTrue(g.completeExceptionally(ex));
3243	+	assertTrue(f.completeExceptionally(ex0));
3244	+	h = m.exceptionallyCompose(f, x -> g);
3245	+	break;
3246	+	case 3:
3247	+	assertTrue(g.completeExceptionally(ex));
3248	+	h = m.exceptionallyCompose(f, x -> g);
3249	+	assertTrue(f.completeExceptionally(ex0));
3250	+	break;
3251	+	case 4:
3252	+	h = m.exceptionallyCompose(f, x -> g);
3253	+	assertTrue(f.completeExceptionally(ex0));
3254	+	assertTrue(g.completeExceptionally(ex));
3255	+	break;
3256	+	case 5:
3257	+	h = m.exceptionallyCompose(f, x -> g);
3258	+	assertTrue(f.completeExceptionally(ex0));
3259	+	assertTrue(g.completeExceptionally(ex));
3260	+	break;
3261	+	default: throw new AssertionError();
3262	+	}
3263	+
3264	+	checkCompletedExceptionally(g, ex);
3265	+	checkCompletedWithWrappedException(h, ex);
3266	+	checkCompletedExceptionally(f, ex0);
3267	+	}}
3268	+
3269		// other static methods
3270
3271		/**
#	Line 3238 | Line 3429 | public class CompletableFutureTest exten
3429		/**
3430		* Completion methods throw NullPointerException with null arguments
3431		*/
3432	+	@SuppressWarnings("FutureReturnValueIgnored")
3433		public void testNPE() {
3434		CompletableFuture<Integer> f = new CompletableFuture<>();
3435		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 3453 | Line 3645 | public class CompletableFutureTest exten
3645		final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3646		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3647
3456	–	List<CompletableFuture<?>> futures = new ArrayList<>();
3457	–
3458	–	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3459	–	srcs.add(complete);
3460	–	srcs.add(incomplete);
3461	–
3648		List<CompletableFuture<?>> fs = new ArrayList<>();
3649		fs.add(incomplete.thenRunAsync(() -> {}, e));
3650		fs.add(incomplete.thenAcceptAsync(z -> {}, e));
#	Line 3532 | Line 3718 | public class CompletableFutureTest exten
3718		*/
3719		public void testCompletedStage() {
3720		AtomicInteger x = new AtomicInteger(0);
3721	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3721	>	AtomicReference<Throwable> r = new AtomicReference<>();
3722		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3723		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3724		assertEquals(x.get(), 1);
#	Line 3634 | Line 3820 | public class CompletableFutureTest exten
3820		CompletableFuture<Integer> f = new CompletableFuture<>();
3821		CompletionStage<Integer> g = f.minimalCompletionStage();
3822		AtomicInteger x = new AtomicInteger(0);
3823	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3823	>	AtomicReference<Throwable> r = new AtomicReference<>();
3824		checkIncomplete(f);
3825		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3826		f.complete(1);
#	Line 3651 | Line 3837 | public class CompletableFutureTest exten
3837		CompletableFuture<Integer> f = new CompletableFuture<>();
3838		CompletionStage<Integer> g = f.minimalCompletionStage();
3839		AtomicInteger x = new AtomicInteger(0);
3840	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3840	>	AtomicReference<Throwable> r = new AtomicReference<>();
3841		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3842		checkIncomplete(f);
3843		CFException ex = new CFException();
#	Line 3669 | Line 3855 | public class CompletableFutureTest exten
3855		CFException ex = new CFException();
3856		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3857		AtomicInteger x = new AtomicInteger(0);
3858	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3858	>	AtomicReference<Throwable> r = new AtomicReference<>();
3859		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3860		assertEquals(x.get(), 0);
3861		assertEquals(r.get(), ex);
#	Line 4174 | Line 4360 | public class CompletableFutureTest exten
4360		static void assertZero(CompletableFuture<?> f) {
4361		try {
4362		f.getNow(null);
4363	<	throw new AssertionFailedError("should throw");
4363	>	throw new AssertionError("should throw");
4364		} catch (CompletionException success) {
4365		assertTrue(success.getCause() instanceof ZeroException);
4366		}
#	Line 4299 | Line 4485 | public class CompletableFutureTest exten
4485		}
4486
4487		/** Test long recursive chains of CompletableFutures with cascading completions */
4488	+	@SuppressWarnings("FutureReturnValueIgnored")
4489		public void testRecursiveChains() throws Throwable {
4490		for (ExecutionMode m : ExecutionMode.values())
4491		for (boolean addDeadEnds : new boolean[] { true, false })
#	Line 4323 | Line 4510 | public class CompletableFutureTest exten
4510		* A single CompletableFuture with many dependents.
4511		* A demo of scalability - runtime is O(n).
4512		*/
4513	+	@SuppressWarnings("FutureReturnValueIgnored")
4514		public void testManyDependents() throws Throwable {
4515		final int n = expensiveTests ? 1_000_000 : 10;
4516		final CompletableFuture<Void> head = new CompletableFuture<>();
#	Line 4352 | Line 4540 | public class CompletableFutureTest exten
4540		}
4541
4542		/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4543	+	@SuppressWarnings("FutureReturnValueIgnored")
4544		public void testCoCompletionGarbageRetention() throws Throwable {
4545		final int n = expensiveTests ? 1_000_000 : 10;
4546		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
#	Line 4370 | Line 4559 | public class CompletableFutureTest exten
4559		f.complete(null);
4560
4561		f = new CompletableFuture<>();
4562	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4562	>	CompletableFuture.anyOf(f, incomplete);
4563		f.complete(null);
4564		}
4565
#	Line 4388 | Line 4577 | public class CompletableFutureTest exten
4577		f.complete(null);
4578
4579		f = new CompletableFuture<>();
4580	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4580	>	CompletableFuture.anyOf(incomplete, f);
4581		f.complete(null);
4582		}
4583		}
#	Line 4482 | Line 4671 | public class CompletableFutureTest exten
4671		//         return stage.toCompletableFuture().copy().isDone();
4672		//     }
4673
4674	+	// For testing default implementations
4675	+	// Only non-default interface methods defined.
4676	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4677	+	final CompletableFuture<T> cf;
4678	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4679	+	public CompletableFuture<T> toCompletableFuture() {
4680	+	return cf; }
4681	+	public CompletionStage<Void> thenRun
4682	+	(Runnable action) {
4683	+	return cf.thenRun(action); }
4684	+	public CompletionStage<Void> thenRunAsync
4685	+	(Runnable action) {
4686	+	return cf.thenRunAsync(action); }
4687	+	public CompletionStage<Void> thenRunAsync
4688	+	(Runnable action,
4689	+	Executor executor) {
4690	+	return cf.thenRunAsync(action, executor); }
4691	+	public CompletionStage<Void> thenAccept
4692	+	(Consumer<? super T> action) {
4693	+	return cf.thenAccept(action); }
4694	+	public CompletionStage<Void> thenAcceptAsync
4695	+	(Consumer<? super T> action) {
4696	+	return cf.thenAcceptAsync(action); }
4697	+	public CompletionStage<Void> thenAcceptAsync
4698	+	(Consumer<? super T> action,
4699	+	Executor executor) {
4700	+	return cf.thenAcceptAsync(action, executor); }
4701	+	public <U> CompletionStage<U> thenApply
4702	+	(Function<? super T,? extends U> a) {
4703	+	return cf.thenApply(a); }
4704	+	public <U> CompletionStage<U> thenApplyAsync
4705	+	(Function<? super T,? extends U> fn) {
4706	+	return cf.thenApplyAsync(fn); }
4707	+	public <U> CompletionStage<U> thenApplyAsync
4708	+	(Function<? super T,? extends U> fn,
4709	+	Executor executor) {
4710	+	return cf.thenApplyAsync(fn, executor); }
4711	+	public <U,V> CompletionStage<V> thenCombine
4712	+	(CompletionStage<? extends U> other,
4713	+	BiFunction<? super T,? super U,? extends V> fn) {
4714	+	return cf.thenCombine(other, fn); }
4715	+	public <U,V> CompletionStage<V> thenCombineAsync
4716	+	(CompletionStage<? extends U> other,
4717	+	BiFunction<? super T,? super U,? extends V> fn) {
4718	+	return cf.thenCombineAsync(other, fn); }
4719	+	public <U,V> CompletionStage<V> thenCombineAsync
4720	+	(CompletionStage<? extends U> other,
4721	+	BiFunction<? super T,? super U,? extends V> fn,
4722	+	Executor executor) {
4723	+	return cf.thenCombineAsync(other, fn, executor); }
4724	+	public <U> CompletionStage<Void> thenAcceptBoth
4725	+	(CompletionStage<? extends U> other,
4726	+	BiConsumer<? super T, ? super U> action) {
4727	+	return cf.thenAcceptBoth(other, action); }
4728	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4729	+	(CompletionStage<? extends U> other,
4730	+	BiConsumer<? super T, ? super U> action) {
4731	+	return cf.thenAcceptBothAsync(other, action); }
4732	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4733	+	(CompletionStage<? extends U> other,
4734	+	BiConsumer<? super T, ? super U> action,
4735	+	Executor executor) {
4736	+	return cf.thenAcceptBothAsync(other, action, executor); }
4737	+	public CompletionStage<Void> runAfterBoth
4738	+	(CompletionStage<?> other,
4739	+	Runnable action) {
4740	+	return cf.runAfterBoth(other, action); }
4741	+	public CompletionStage<Void> runAfterBothAsync
4742	+	(CompletionStage<?> other,
4743	+	Runnable action) {
4744	+	return cf.runAfterBothAsync(other, action); }
4745	+	public CompletionStage<Void> runAfterBothAsync
4746	+	(CompletionStage<?> other,
4747	+	Runnable action,
4748	+	Executor executor) {
4749	+	return cf.runAfterBothAsync(other, action, executor); }
4750	+	public <U> CompletionStage<U> applyToEither
4751	+	(CompletionStage<? extends T> other,
4752	+	Function<? super T, U> fn) {
4753	+	return cf.applyToEither(other, fn); }
4754	+	public <U> CompletionStage<U> applyToEitherAsync
4755	+	(CompletionStage<? extends T> other,
4756	+	Function<? super T, U> fn) {
4757	+	return cf.applyToEitherAsync(other, fn); }
4758	+	public <U> CompletionStage<U> applyToEitherAsync
4759	+	(CompletionStage<? extends T> other,
4760	+	Function<? super T, U> fn,
4761	+	Executor executor) {
4762	+	return cf.applyToEitherAsync(other, fn, executor); }
4763	+	public CompletionStage<Void> acceptEither
4764	+	(CompletionStage<? extends T> other,
4765	+	Consumer<? super T> action) {
4766	+	return cf.acceptEither(other, action); }
4767	+	public CompletionStage<Void> acceptEitherAsync
4768	+	(CompletionStage<? extends T> other,
4769	+	Consumer<? super T> action) {
4770	+	return cf.acceptEitherAsync(other, action); }
4771	+	public CompletionStage<Void> acceptEitherAsync
4772	+	(CompletionStage<? extends T> other,
4773	+	Consumer<? super T> action,
4774	+	Executor executor) {
4775	+	return cf.acceptEitherAsync(other, action, executor); }
4776	+	public CompletionStage<Void> runAfterEither
4777	+	(CompletionStage<?> other,
4778	+	Runnable action) {
4779	+	return cf.runAfterEither(other, action); }
4780	+	public CompletionStage<Void> runAfterEitherAsync
4781	+	(CompletionStage<?> other,
4782	+	Runnable action) {
4783	+	return cf.runAfterEitherAsync(other, action); }
4784	+	public CompletionStage<Void> runAfterEitherAsync
4785	+	(CompletionStage<?> other,
4786	+	Runnable action,
4787	+	Executor executor) {
4788	+	return cf.runAfterEitherAsync(other, action, executor); }
4789	+	public <U> CompletionStage<U> thenCompose
4790	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4791	+	return cf.thenCompose(fn); }
4792	+	public <U> CompletionStage<U> thenComposeAsync
4793	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4794	+	return cf.thenComposeAsync(fn); }
4795	+	public <U> CompletionStage<U> thenComposeAsync
4796	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4797	+	Executor executor) {
4798	+	return cf.thenComposeAsync(fn, executor); }
4799	+	public <U> CompletionStage<U> handle
4800	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4801	+	return cf.handle(fn); }
4802	+	public <U> CompletionStage<U> handleAsync
4803	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4804	+	return cf.handleAsync(fn); }
4805	+	public <U> CompletionStage<U> handleAsync
4806	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4807	+	Executor executor) {
4808	+	return cf.handleAsync(fn, executor); }
4809	+	public CompletionStage<T> whenComplete
4810	+	(BiConsumer<? super T, ? super Throwable> action) {
4811	+	return cf.whenComplete(action); }
4812	+	public CompletionStage<T> whenCompleteAsync
4813	+	(BiConsumer<? super T, ? super Throwable> action) {
4814	+	return cf.whenCompleteAsync(action); }
4815	+	public CompletionStage<T> whenCompleteAsync
4816	+	(BiConsumer<? super T, ? super Throwable> action,
4817	+	Executor executor) {
4818	+	return cf.whenCompleteAsync(action, executor); }
4819	+	public CompletionStage<T> exceptionally
4820	+	(Function<Throwable, ? extends T> fn) {
4821	+	return cf.exceptionally(fn); }
4822	+	}
4823	+
4824	+	/**
4825	+	* default-implemented exceptionallyAsync action is not invoked when
4826	+	* source completes normally, and source result is propagated
4827	+	*/
4828	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4829	+	for (boolean createIncomplete : new boolean[] { true, false })
4830	+	for (Integer v1 : new Integer[] { 1, null })
4831	+	{
4832	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4833	+	final DelegatedCompletionStage<Integer> d =
4834	+	new DelegatedCompletionStage<Integer>(f);
4835	+	if (!createIncomplete) assertTrue(f.complete(v1));
4836	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4837	+	((Throwable t) -> {
4838	+	threadFail("should not be called");
4839	+	return null;            // unreached
4840	+	});
4841	+	if (createIncomplete) assertTrue(f.complete(v1));
4842	+
4843	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4844	+	}}
4845	+
4846	+	/**
4847	+	* default-implemented exceptionallyAsync action completes with
4848	+	* function value on source exception
4849	+	*/
4850	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4851	+	for (boolean createIncomplete : new boolean[] { true, false })
4852	+	for (Integer v1 : new Integer[] { 1, null })
4853	+	{
4854	+	final AtomicInteger ran = new AtomicInteger(0);
4855	+	final CFException ex = new CFException();
4856	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4857	+	final DelegatedCompletionStage<Integer> d =
4858	+	new DelegatedCompletionStage<Integer>(f);
4859	+	if (!createIncomplete) f.completeExceptionally(ex);
4860	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4861	+	((Throwable t) -> {
4862	+	assertSame(t, ex);
4863	+	ran.getAndIncrement();
4864	+	return v1;
4865	+	});
4866	+	if (createIncomplete) f.completeExceptionally(ex);
4867	+
4868	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4869	+	assertEquals(1, ran.get());
4870	+	}}
4871	+
4872	+	/**
4873	+	* Under default implementation, if an "exceptionally action"
4874	+	* throws an exception, it completes exceptionally with that
4875	+	* exception
4876	+	*/
4877	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4878	+	for (boolean createIncomplete : new boolean[] { true, false })
4879	+	{
4880	+	final AtomicInteger ran = new AtomicInteger(0);
4881	+	final CFException ex1 = new CFException();
4882	+	final CFException ex2 = new CFException();
4883	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4884	+	final DelegatedCompletionStage<Integer> d =
4885	+	new DelegatedCompletionStage<Integer>(f);
4886	+	if (!createIncomplete) f.completeExceptionally(ex1);
4887	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4888	+	((Throwable t) -> {
4889	+	assertSame(t, ex1);
4890	+	ran.getAndIncrement();
4891	+	throw ex2;
4892	+	});
4893	+	if (createIncomplete) f.completeExceptionally(ex1);
4894	+
4895	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4896	+	checkCompletedExceptionally(f, ex1);
4897	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4898	+	assertEquals(1, ran.get());
4899	+	}}
4900	+
4901	+	/**
4902	+	* default-implemented exceptionallyCompose result completes
4903	+	* normally after normal completion of source
4904	+	*/
4905	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4906	+	for (boolean createIncomplete : new boolean[] { true, false })
4907	+	for (Integer v1 : new Integer[] { 1, null })
4908	+	{
4909	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4910	+	final ExceptionalCompletableFutureFunction r =
4911	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4912	+	final DelegatedCompletionStage<Integer> d =
4913	+	new DelegatedCompletionStage<Integer>(f);
4914	+	if (!createIncomplete) assertTrue(f.complete(v1));
4915	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4916	+	if (createIncomplete) assertTrue(f.complete(v1));
4917	+
4918	+	checkCompletedNormally(f, v1);
4919	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4920	+	r.assertNotInvoked();
4921	+	}}
4922	+
4923	+	/**
4924	+	* default-implemented exceptionallyCompose result completes
4925	+	* normally after exceptional completion of source
4926	+	*/
4927	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4928	+	for (boolean createIncomplete : new boolean[] { true, false })
4929	+	{
4930	+	final CFException ex = new CFException();
4931	+	final ExceptionalCompletableFutureFunction r =
4932	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4933	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4934	+	final DelegatedCompletionStage<Integer> d =
4935	+	new DelegatedCompletionStage<Integer>(f);
4936	+	if (!createIncomplete) f.completeExceptionally(ex);
4937	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4938	+	if (createIncomplete) f.completeExceptionally(ex);
4939	+
4940	+	checkCompletedExceptionally(f, ex);
4941	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4942	+	r.assertInvoked();
4943	+	}}
4944	+
4945	+	/**
4946	+	* default-implemented exceptionallyCompose completes
4947	+	* exceptionally on exception if action does
4948	+	*/
4949	+	public void testDefaultExceptionallyCompose_actionFailed() {
4950	+	for (boolean createIncomplete : new boolean[] { true, false })
4951	+	{
4952	+	final CFException ex = new CFException();
4953	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4954	+	final FailingExceptionalCompletableFutureFunction r
4955	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4956	+	final DelegatedCompletionStage<Integer> d =
4957	+	new DelegatedCompletionStage<Integer>(f);
4958	+	if (!createIncomplete) f.completeExceptionally(ex);
4959	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4960	+	if (createIncomplete) f.completeExceptionally(ex);
4961	+
4962	+	checkCompletedExceptionally(f, ex);
4963	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4964	+	r.assertInvoked();
4965	+	}}
4966	+
4967	+	/**
4968	+	* default-implemented exceptionallyComposeAsync result completes
4969	+	* normally after normal completion of source
4970	+	*/
4971	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4972	+	for (boolean createIncomplete : new boolean[] { true, false })
4973	+	for (Integer v1 : new Integer[] { 1, null })
4974	+	{
4975	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4976	+	final ExceptionalCompletableFutureFunction r =
4977	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4978	+	final DelegatedCompletionStage<Integer> d =
4979	+	new DelegatedCompletionStage<Integer>(f);
4980	+	if (!createIncomplete) assertTrue(f.complete(v1));
4981	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4982	+	if (createIncomplete) assertTrue(f.complete(v1));
4983	+
4984	+	checkCompletedNormally(f, v1);
4985	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4986	+	r.assertNotInvoked();
4987	+	}}
4988	+
4989	+	/**
4990	+	* default-implemented exceptionallyComposeAsync result completes
4991	+	* normally after exceptional completion of source
4992	+	*/
4993	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4994	+	for (boolean createIncomplete : new boolean[] { true, false })
4995	+	{
4996	+	final CFException ex = new CFException();
4997	+	final ExceptionalCompletableFutureFunction r =
4998	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4999	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5000	+	final DelegatedCompletionStage<Integer> d =
5001	+	new DelegatedCompletionStage<Integer>(f);
5002	+	if (!createIncomplete) f.completeExceptionally(ex);
5003	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5004	+	if (createIncomplete) f.completeExceptionally(ex);
5005	+
5006	+	checkCompletedExceptionally(f, ex);
5007	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5008	+	r.assertInvoked();
5009	+	}}
5010	+
5011	+	/**
5012	+	* default-implemented exceptionallyComposeAsync completes
5013	+	* exceptionally on exception if action does
5014	+	*/
5015	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5016	+	for (boolean createIncomplete : new boolean[] { true, false })
5017	+	{
5018	+	final CFException ex = new CFException();
5019	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5020	+	final FailingExceptionalCompletableFutureFunction r
5021	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5022	+	final DelegatedCompletionStage<Integer> d =
5023	+	new DelegatedCompletionStage<Integer>(f);
5024	+	if (!createIncomplete) f.completeExceptionally(ex);
5025	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5026	+	if (createIncomplete) f.completeExceptionally(ex);
5027	+
5028	+	checkCompletedExceptionally(f, ex);
5029	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5030	+	r.assertInvoked();
5031	+	}}
5032	+
5033	+	/**
5034	+	* default-implemented exceptionallyComposeAsync result completes
5035	+	* normally after normal completion of source
5036	+	*/
5037	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5038	+	for (boolean createIncomplete : new boolean[] { true, false })
5039	+	for (Integer v1 : new Integer[] { 1, null })
5040	+	{
5041	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5042	+	final ExceptionalCompletableFutureFunction r =
5043	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5044	+	final DelegatedCompletionStage<Integer> d =
5045	+	new DelegatedCompletionStage<Integer>(f);
5046	+	if (!createIncomplete) assertTrue(f.complete(v1));
5047	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5048	+	if (createIncomplete) assertTrue(f.complete(v1));
5049	+
5050	+	checkCompletedNormally(f, v1);
5051	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5052	+	r.assertNotInvoked();
5053	+	}}
5054	+
5055	+	/**
5056	+	* default-implemented exceptionallyComposeAsync result completes
5057	+	* normally after exceptional completion of source
5058	+	*/
5059	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5060	+	for (boolean createIncomplete : new boolean[] { true, false })
5061	+	{
5062	+	final CFException ex = new CFException();
5063	+	final ExceptionalCompletableFutureFunction r =
5064	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5065	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5066	+	final DelegatedCompletionStage<Integer> d =
5067	+	new DelegatedCompletionStage<Integer>(f);
5068	+	if (!createIncomplete) f.completeExceptionally(ex);
5069	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5070	+	if (createIncomplete) f.completeExceptionally(ex);
5071	+
5072	+	checkCompletedExceptionally(f, ex);
5073	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5074	+	r.assertInvoked();
5075	+	}}
5076	+
5077	+	/**
5078	+	* default-implemented exceptionallyComposeAsync completes
5079	+	* exceptionally on exception if action does
5080	+	*/
5081	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5082	+	for (boolean createIncomplete : new boolean[] { true, false })
5083	+	{
5084	+	final CFException ex = new CFException();
5085	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5086	+	final FailingExceptionalCompletableFutureFunction r
5087	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5088	+	final DelegatedCompletionStage<Integer> d =
5089	+	new DelegatedCompletionStage<Integer>(f);
5090	+	if (!createIncomplete) f.completeExceptionally(ex);
5091	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5092	+	if (createIncomplete) f.completeExceptionally(ex);
5093	+
5094	+	checkCompletedExceptionally(f, ex);
5095	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5096	+	r.assertInvoked();
5097	+	}}
5098	+
5099		}

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