ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

root/jsr166/jsr166/src/test/tck/JSR166TestCase.java

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.220 by jsr166, Sat Mar 11 17:33:32 2017 UTC vs.
Revision 1.262 by jsr166, Thu Sep 5 21:26:24 2019 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
2	>	* Written by Doug Lea and Martin Buchholz with assistance from
3	>	* members of JCP JSR-166 Expert Group and released to the public
4	>	* domain, as explained at
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		* Other contributors include Andrew Wright, Jeffrey Hayes,
7		* Pat Fisher, Mike Judd.
#	Line 8 | Line 9
9
10		/*
11		* @test
12	<	* @summary JSR-166 tck tests (conformance testing mode)
12	>	* @summary JSR-166 tck tests, in a number of variations.
13	>	*          The first is the conformance testing variant,
14	>	*          while others also test implementation details.
15		* @build *
16		* @modules java.management
17		* @run junit/othervm/timeout=1000 JSR166TestCase
15	–	*/
16	–
17	–	/*
18	–	* @test
19	–	* @summary JSR-166 tck tests (whitebox tests allowed)
20	–	* @build *
21	–	* @modules java.base/java.util.concurrent:open
22	–	*          java.base/java.lang:open
23	–	*          java.management
18		* @run junit/othervm/timeout=1000
19	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
20	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
21		*      -Djsr166.testImplementationDetails=true
22		*      JSR166TestCase
23		* @run junit/othervm/timeout=1000
24	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
25	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
26		*      -Djsr166.testImplementationDetails=true
27		*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
28		*      JSR166TestCase
29		* @run junit/othervm/timeout=1000
30	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
31	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
32		*      -Djsr166.testImplementationDetails=true
33		*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
34		*      -Djava.util.secureRandomSeed=true
35		*      JSR166TestCase
36		* @run junit/othervm/timeout=1000/policy=tck.policy
37	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
38	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
39		*      -Djsr166.testImplementationDetails=true
40		*      JSR166TestCase
41		*/
#	Line 64 | Line 66 | import java.util.Arrays;
66		import java.util.Collection;
67		import java.util.Collections;
68		import java.util.Date;
69	+	import java.util.Deque;
70		import java.util.Enumeration;
71	+	import java.util.HashSet;
72		import java.util.Iterator;
73		import java.util.List;
74		import java.util.NoSuchElementException;
75		import java.util.PropertyPermission;
76	+	import java.util.Set;
77		import java.util.concurrent.BlockingQueue;
78		import java.util.concurrent.Callable;
79		import java.util.concurrent.CountDownLatch;
80		import java.util.concurrent.CyclicBarrier;
81		import java.util.concurrent.ExecutionException;
82	+	import java.util.concurrent.Executor;
83		import java.util.concurrent.Executors;
84		import java.util.concurrent.ExecutorService;
85		import java.util.concurrent.ForkJoinPool;
86		import java.util.concurrent.Future;
87	+	import java.util.concurrent.FutureTask;
88		import java.util.concurrent.RecursiveAction;
89		import java.util.concurrent.RecursiveTask;
90	+	import java.util.concurrent.RejectedExecutionException;
91		import java.util.concurrent.RejectedExecutionHandler;
92		import java.util.concurrent.Semaphore;
93	+	import java.util.concurrent.ScheduledExecutorService;
94	+	import java.util.concurrent.ScheduledFuture;
95		import java.util.concurrent.SynchronousQueue;
96		import java.util.concurrent.ThreadFactory;
97		import java.util.concurrent.ThreadLocalRandom;
98		import java.util.concurrent.ThreadPoolExecutor;
99	+	import java.util.concurrent.TimeUnit;
100		import java.util.concurrent.TimeoutException;
101		import java.util.concurrent.atomic.AtomicBoolean;
102		import java.util.concurrent.atomic.AtomicReference;
103		import java.util.regex.Pattern;
104
94	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107		import junit.framework.TestResult;
#	Line 107 | Line 117 | import junit.framework.TestSuite;
117		*
118		* <ol>
119		*
120	<	* <li>All assertions in code running in generated threads must use
121	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
122	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
123	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
124	<	* particularly recommended) for other code to use these forms too.
125	<	* Only the most typically used JUnit assertion methods are defined
126	<	* this way, but enough to live with.
120	>	* <li>All code not running in the main test thread (manually spawned threads
121	>	* or the common fork join pool) must be checked for failure (and completion!).
122	>	* Mechanisms that can be used to ensure this are:
123	>	*   <ol>
124	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
125	>	*    that the task completed normally, which is checked before returning from
126	>	*    the test method in the main thread.
127	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
128	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
129	>	*    Only the most typically used JUnit assertion methods are defined
130	>	*    this way, but enough to live with.
131	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
132	>	*    or {@link #threadRecordFailure}.
133	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
134	>	*   </ol>
135		*
136		* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
137		* to invoke {@code super.setUp} and {@code super.tearDown} within
#	Line 270 | Line 288 | public class JSR166TestCase extends Test
288		// Avoid spurious reports with enormous runsPerTest.
289		// A single test case run should never take more than 1 second.
290		// But let's cap it at the high end too ...
291	<	final int timeoutMinutes =
292	<	Math.min(15, Math.max(runsPerTest / 60, 1));
291	>	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
292	>	* Math.max((int) delayFactor, 1);
293	>	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
294		for (TestCase lastTestCase = currentTestCase;;) {
295		try { MINUTES.sleep(timeoutMinutes); }
296		catch (InterruptedException unexpected) { break; }
#	Line 411 | Line 430 | public class JSR166TestCase extends Test
430		for (String testClassName : testClassNames) {
431		try {
432		Class<?> testClass = Class.forName(testClassName);
433	<	Method m = testClass.getDeclaredMethod("suite",
415	<	new Class<?>[0]);
433	>	Method m = testClass.getDeclaredMethod("suite");
434		suite.addTest(newTestSuite((Test)m.invoke(null)));
435	<	} catch (Exception e) {
436	<	throw new Error("Missing test class", e);
435	>	} catch (ReflectiveOperationException e) {
436	>	throw new AssertionError("Missing test class", e);
437		}
438		}
439		}
#	Line 437 | Line 455 | public class JSR166TestCase extends Test
455		}
456		}
457
458	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
459	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
460	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
461	<	public static boolean atLeastJava9() {
462	<	return JAVA_CLASS_VERSION >= 53.0
463	<	// As of 2015-09, java9 still uses 52.0 class file version
464	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
465	<	}
466	<	public static boolean atLeastJava10() {
467	<	return JAVA_CLASS_VERSION >= 54.0
468	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
469	<	}
458	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
459	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
460	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
461	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
462	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
463	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
464	>	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
465	>	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
466	>	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
467	>	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
468	>	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
469	>	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
470
471		/**
472		* Collects all JSR166 unit tests as one suite.
#	Line 500 | Line 518 | public class JSR166TestCase extends Test
518		ExecutorsTest.suite(),
519		ExecutorCompletionServiceTest.suite(),
520		FutureTaskTest.suite(),
521	+	HashtableTest.suite(),
522		LinkedBlockingDequeTest.suite(),
523		LinkedBlockingQueueTest.suite(),
524		LinkedListTest.suite(),
#	Line 536 | Line 555 | public class JSR166TestCase extends Test
555		"DoubleAdderTest",
556		"ForkJoinPool8Test",
557		"ForkJoinTask8Test",
558	+	"HashMapTest",
559		"LinkedBlockingDeque8Test",
560		"LinkedBlockingQueue8Test",
561	+	"LinkedHashMapTest",
562		"LongAccumulatorTest",
563		"LongAdderTest",
564		"SplittableRandomTest",
#	Line 598 | Line 619 | public class JSR166TestCase extends Test
619		for (String methodName : testMethodNames(testClass))
620		suite.addTest((Test) c.newInstance(data, methodName));
621		return suite;
622	<	} catch (Exception e) {
623	<	throw new Error(e);
622	>	} catch (ReflectiveOperationException e) {
623	>	throw new AssertionError(e);
624		}
625		}
626
#	Line 615 | Line 636 | public class JSR166TestCase extends Test
636		if (atLeastJava8()) {
637		String name = testClass.getName();
638		String name8 = name.replaceAll("Test$", "8Test");
639	<	if (name.equals(name8)) throw new Error(name);
639	>	if (name.equals(name8)) throw new AssertionError(name);
640		try {
641		return (Test)
642		Class.forName(name8)
643	<	.getMethod("testSuite", new Class[] { dataClass })
643	>	.getMethod("testSuite", dataClass)
644		.invoke(null, data);
645	<	} catch (Exception e) {
646	<	throw new Error(e);
645	>	} catch (ReflectiveOperationException e) {
646	>	throw new AssertionError(e);
647		}
648		} else {
649		return new TestSuite();
#	Line 637 | Line 658 | public class JSR166TestCase extends Test
658		public static long LONG_DELAY_MS;
659
660		/**
661	+	* A delay significantly longer than LONG_DELAY_MS.
662	+	* Use this in a thread that is waited for via awaitTermination(Thread).
663	+	*/
664	+	public static long LONGER_DELAY_MS;
665	+
666	+	private static final long RANDOM_TIMEOUT;
667	+	private static final long RANDOM_EXPIRED_TIMEOUT;
668	+	private static final TimeUnit RANDOM_TIMEUNIT;
669	+	static {
670	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
671	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
672	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
673	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
674	+	TimeUnit[] timeUnits = TimeUnit.values();
675	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
676	+	}
677	+
678	+	/**
679	+	* Returns a timeout for use when any value at all will do.
680	+	*/
681	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
682	+
683	+	/**
684	+	* Returns a timeout that means "no waiting", i.e. not positive.
685	+	*/
686	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
687	+
688	+	/**
689	+	* Returns a random non-null TimeUnit.
690	+	*/
691	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
692	+
693	+	/**
694	+	* Returns a random boolean; a "coin flip".
695	+	*/
696	+	static boolean randomBoolean() {
697	+	return ThreadLocalRandom.current().nextBoolean();
698	+	}
699	+
700	+	/**
701	+	* Returns a random element from given choices.
702	+	*/
703	+	<T> T chooseRandomly(T... choices) {
704	+	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
705	+	}
706	+
707	+	/**
708		* Returns the shortest timed delay. This can be scaled up for
709		* slow machines using the jsr166.delay.factor system property,
710		* or via jtreg's -timeoutFactor: flag.
#	Line 654 | Line 722 | public class JSR166TestCase extends Test
722		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
723		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
724		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
725	+	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
726		}
727
728	+	private static final long TIMEOUT_DELAY_MS
729	+	= (long) (12.0 * Math.cbrt(delayFactor));
730	+
731		/**
732	<	* Returns a timeout in milliseconds to be used in tests that
733	<	* verify that operations block or time out.
732	>	* Returns a timeout in milliseconds to be used in tests that verify
733	>	* that operations block or time out.  We want this to be longer
734	>	* than the OS scheduling quantum, but not too long, so don't scale
735	>	* linearly with delayFactor; we use "crazy" cube root instead.
736		*/
737	<	long timeoutMillis() {
738	<	return SHORT_DELAY_MS / 4;
737	>	static long timeoutMillis() {
738	>	return TIMEOUT_DELAY_MS;
739		}
740
741		/**
#	Line 687 | Line 761 | public class JSR166TestCase extends Test
761		*/
762		public void threadRecordFailure(Throwable t) {
763		System.err.println(t);
764	<	dumpTestThreads();
765	<	threadFailure.compareAndSet(null, t);
764	>	if (threadFailure.compareAndSet(null, t))
765	>	dumpTestThreads();
766		}
767
768		public void setUp() {
#	Line 699 | Line 773 | public class JSR166TestCase extends Test
773		String msg = toString() + ": " + String.format(format, args);
774		System.err.println(msg);
775		dumpTestThreads();
776	<	throw new AssertionFailedError(msg);
776	>	throw new AssertionError(msg);
777		}
778
779		/**
#	Line 720 | Line 794 | public class JSR166TestCase extends Test
794		throw (RuntimeException) t;
795		else if (t instanceof Exception)
796		throw (Exception) t;
797	<	else {
798	<	AssertionFailedError afe =
725	<	new AssertionFailedError(t.toString());
726	<	afe.initCause(t);
727	<	throw afe;
728	<	}
797	>	else
798	>	throw new AssertionError(t.toString(), t);
799		}
800
801		if (Thread.interrupted())
#	Line 759 | Line 829 | public class JSR166TestCase extends Test
829
830		/**
831		* Just like fail(reason), but additionally recording (using
832	<	* threadRecordFailure) any AssertionFailedError thrown, so that
833	<	* the current testcase will fail.
832	>	* threadRecordFailure) any AssertionError thrown, so that the
833	>	* current testcase will fail.
834		*/
835		public void threadFail(String reason) {
836		try {
837		fail(reason);
838	<	} catch (AssertionFailedError t) {
839	<	threadRecordFailure(t);
840	<	throw t;
838	>	} catch (AssertionError fail) {
839	>	threadRecordFailure(fail);
840	>	throw fail;
841		}
842		}
843
844		/**
845		* Just like assertTrue(b), but additionally recording (using
846	<	* threadRecordFailure) any AssertionFailedError thrown, so that
847	<	* the current testcase will fail.
846	>	* threadRecordFailure) any AssertionError thrown, so that the
847	>	* current testcase will fail.
848		*/
849		public void threadAssertTrue(boolean b) {
850		try {
851		assertTrue(b);
852	<	} catch (AssertionFailedError t) {
853	<	threadRecordFailure(t);
854	<	throw t;
852	>	} catch (AssertionError fail) {
853	>	threadRecordFailure(fail);
854	>	throw fail;
855		}
856		}
857
858		/**
859		* Just like assertFalse(b), but additionally recording (using
860	<	* threadRecordFailure) any AssertionFailedError thrown, so that
861	<	* the current testcase will fail.
860	>	* threadRecordFailure) any AssertionError thrown, so that the
861	>	* current testcase will fail.
862		*/
863		public void threadAssertFalse(boolean b) {
864		try {
865		assertFalse(b);
866	<	} catch (AssertionFailedError t) {
867	<	threadRecordFailure(t);
868	<	throw t;
866	>	} catch (AssertionError fail) {
867	>	threadRecordFailure(fail);
868	>	throw fail;
869		}
870		}
871
872		/**
873		* Just like assertNull(x), but additionally recording (using
874	<	* threadRecordFailure) any AssertionFailedError thrown, so that
875	<	* the current testcase will fail.
874	>	* threadRecordFailure) any AssertionError thrown, so that the
875	>	* current testcase will fail.
876		*/
877		public void threadAssertNull(Object x) {
878		try {
879		assertNull(x);
880	<	} catch (AssertionFailedError t) {
881	<	threadRecordFailure(t);
882	<	throw t;
880	>	} catch (AssertionError fail) {
881	>	threadRecordFailure(fail);
882	>	throw fail;
883		}
884		}
885
886		/**
887		* Just like assertEquals(x, y), but additionally recording (using
888	<	* threadRecordFailure) any AssertionFailedError thrown, so that
889	<	* the current testcase will fail.
888	>	* threadRecordFailure) any AssertionError thrown, so that the
889	>	* current testcase will fail.
890		*/
891		public void threadAssertEquals(long x, long y) {
892		try {
893		assertEquals(x, y);
894	<	} catch (AssertionFailedError t) {
895	<	threadRecordFailure(t);
896	<	throw t;
894	>	} catch (AssertionError fail) {
895	>	threadRecordFailure(fail);
896	>	throw fail;
897		}
898		}
899
900		/**
901		* Just like assertEquals(x, y), but additionally recording (using
902	<	* threadRecordFailure) any AssertionFailedError thrown, so that
903	<	* the current testcase will fail.
902	>	* threadRecordFailure) any AssertionError thrown, so that the
903	>	* current testcase will fail.
904		*/
905		public void threadAssertEquals(Object x, Object y) {
906		try {
907		assertEquals(x, y);
908	<	} catch (AssertionFailedError fail) {
908	>	} catch (AssertionError fail) {
909		threadRecordFailure(fail);
910		throw fail;
911		} catch (Throwable fail) {
#	Line 845 | Line 915 | public class JSR166TestCase extends Test
915
916		/**
917		* Just like assertSame(x, y), but additionally recording (using
918	<	* threadRecordFailure) any AssertionFailedError thrown, so that
919	<	* the current testcase will fail.
918	>	* threadRecordFailure) any AssertionError thrown, so that the
919	>	* current testcase will fail.
920		*/
921		public void threadAssertSame(Object x, Object y) {
922		try {
923		assertSame(x, y);
924	<	} catch (AssertionFailedError fail) {
924	>	} catch (AssertionError fail) {
925		threadRecordFailure(fail);
926		throw fail;
927		}
#	Line 873 | Line 943 | public class JSR166TestCase extends Test
943
944		/**
945		* Records the given exception using {@link #threadRecordFailure},
946	<	* then rethrows the exception, wrapping it in an
947	<	* AssertionFailedError if necessary.
946	>	* then rethrows the exception, wrapping it in an AssertionError
947	>	* if necessary.
948		*/
949		public void threadUnexpectedException(Throwable t) {
950		threadRecordFailure(t);
#	Line 883 | Line 953 | public class JSR166TestCase extends Test
953		throw (RuntimeException) t;
954		else if (t instanceof Error)
955		throw (Error) t;
956	<	else {
957	<	AssertionFailedError afe =
888	<	new AssertionFailedError("unexpected exception: " + t);
889	<	afe.initCause(t);
890	<	throw afe;
891	<	}
956	>	else
957	>	throw new AssertionError("unexpected exception: " + t, t);
958		}
959
960		/**
#	Line 1056 | Line 1122 | public class JSR166TestCase extends Test
1122		}
1123
1124		/**
1125	<	* Checks that thread does not terminate within the default
1060	<	* millisecond delay of {@code timeoutMillis()}.
1061	<	*/
1062	<	void assertThreadStaysAlive(Thread thread) {
1063	<	assertThreadStaysAlive(thread, timeoutMillis());
1064	<	}
1065	<
1066	<	/**
1067	<	* Checks that thread does not terminate within the given millisecond delay.
1068	<	*/
1069	<	void assertThreadStaysAlive(Thread thread, long millis) {
1070	<	try {
1071	<	// No need to optimize the failing case via Thread.join.
1072	<	delay(millis);
1073	<	assertTrue(thread.isAlive());
1074	<	} catch (InterruptedException fail) {
1075	<	threadFail("Unexpected InterruptedException");
1076	<	}
1077	<	}
1078	<
1079	<	/**
1080	<	* Checks that the threads do not terminate within the default
1081	<	* millisecond delay of {@code timeoutMillis()}.
1125	>	* Checks that thread eventually enters the expected blocked thread state.
1126		*/
1127	<	void assertThreadsStayAlive(Thread... threads) {
1128	<	assertThreadsStayAlive(timeoutMillis(), threads);
1129	<	}
1130	<
1131	<	/**
1132	<	* Checks that the threads do not terminate within the given millisecond delay.
1133	<	*/
1134	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1135	<	try {
1136	<	// No need to optimize the failing case via Thread.join.
1137	<	delay(millis);
1138	<	for (Thread thread : threads)
1139	<	assertTrue(thread.isAlive());
1096	<	} catch (InterruptedException fail) {
1097	<	threadFail("Unexpected InterruptedException");
1127	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1128	>	// always sleep at least 1 ms, with high probability avoiding
1129	>	// transitory states
1130	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1131	>	try { delay(1); }
1132	>	catch (InterruptedException fail) {
1133	>	throw new AssertionError("Unexpected InterruptedException", fail);
1134	>	}
1135	>	Thread.State s = thread.getState();
1136	>	if (s == expected)
1137	>	return;
1138	>	else if (s == Thread.State.TERMINATED)
1139	>	fail("Unexpected thread termination");
1140		}
1141	+	fail("timed out waiting for thread to enter thread state " + expected);
1142		}
1143
1144		/**
#	Line 1136 | Line 1179 | public class JSR166TestCase extends Test
1179		}
1180
1181		/**
1182	+	* The maximum number of consecutive spurious wakeups we should
1183	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1184	+	*/
1185	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1186	+
1187	+	/**
1188		* The number of elements to place in collections, arrays, etc.
1189		*/
1190		public static final int SIZE = 20;
#	Line 1267 | Line 1316 | public class JSR166TestCase extends Test
1316
1317		/**
1318		* Sleeps until the given time has elapsed.
1319	<	* Throws AssertionFailedError if interrupted.
1319	>	* Throws AssertionError if interrupted.
1320		*/
1321		static void sleep(long millis) {
1322		try {
1323		delay(millis);
1324		} catch (InterruptedException fail) {
1325	<	AssertionFailedError afe =
1277	<	new AssertionFailedError("Unexpected InterruptedException");
1278	<	afe.initCause(fail);
1279	<	throw afe;
1325	>	throw new AssertionError("Unexpected InterruptedException", fail);
1326		}
1327		}
1328
1329		/**
1330		* Spin-waits up to the specified number of milliseconds for the given
1331		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1332	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1333		*/
1334	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1335	<	long startTime = 0L;
1336	<	for (;;) {
1337	<	Thread.State s = thread.getState();
1338	<	if (s == Thread.State.BLOCKED ||
1339	<	s == Thread.State.WAITING ||
1340	<	s == Thread.State.TIMED_WAITING)
1341	<	return;
1342	<	else if (s == Thread.State.TERMINATED)
1334	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1335	>	Callable<Boolean> waitingForGodot) {
1336	>	for (long startTime = 0L;;) {
1337	>	switch (thread.getState()) {
1338	>	default: break;
1339	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1340	>	try {
1341	>	if (waitingForGodot == null || waitingForGodot.call())
1342	>	return;
1343	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1344	>	break;
1345	>	case TERMINATED:
1346		fail("Unexpected thread termination");
1347	<	else if (startTime == 0L)
1347	>	}
1348	>
1349	>	if (startTime == 0L)
1350		startTime = System.nanoTime();
1351		else if (millisElapsedSince(startTime) > timeoutMillis) {
1352	<	threadAssertTrue(thread.isAlive());
1353	<	fail("timed out waiting for thread to enter wait state");
1352	>	assertTrue(thread.isAlive());
1353	>	if (waitingForGodot == null
1354	>	|| thread.getState() == Thread.State.RUNNABLE)
1355	>	fail("timed out waiting for thread to enter wait state");
1356	>	else
1357	>	fail("timed out waiting for condition, thread state="
1358	>	+ thread.getState());
1359		}
1360		Thread.yield();
1361		}
#	Line 1306 | Line 1363 | public class JSR166TestCase extends Test
1363
1364		/**
1365		* Spin-waits up to the specified number of milliseconds for the given
1366	<	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1310	<	* and additionally satisfy the given condition.
1366	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1367		*/
1368	<	void waitForThreadToEnterWaitState(
1369	<	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1314	<	long startTime = 0L;
1315	<	for (;;) {
1316	<	Thread.State s = thread.getState();
1317	<	if (s == Thread.State.BLOCKED ||
1318	<	s == Thread.State.WAITING ||
1319	<	s == Thread.State.TIMED_WAITING) {
1320	<	try {
1321	<	if (waitingForGodot.call())
1322	<	return;
1323	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
1324	<	}
1325	<	else if (s == Thread.State.TERMINATED)
1326	<	fail("Unexpected thread termination");
1327	<	else if (startTime == 0L)
1328	<	startTime = System.nanoTime();
1329	<	else if (millisElapsedSince(startTime) > timeoutMillis) {
1330	<	threadAssertTrue(thread.isAlive());
1331	<	fail("timed out waiting for thread to enter wait state");
1332	<	}
1333	<	Thread.yield();
1334	<	}
1368	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1369	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1370		}
1371
1372		/**
#	Line 1339 | Line 1374 | public class JSR166TestCase extends Test
1374		* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1375		*/
1376		void waitForThreadToEnterWaitState(Thread thread) {
1377	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1377	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1378		}
1379
1380		/**
#	Line 1347 | Line 1382 | public class JSR166TestCase extends Test
1382		* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1383		* and additionally satisfy the given condition.
1384		*/
1385	<	void waitForThreadToEnterWaitState(
1386	<	Thread thread, Callable<Boolean> waitingForGodot) {
1385	>	void waitForThreadToEnterWaitState(Thread thread,
1386	>	Callable<Boolean> waitingForGodot) {
1387		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1388		}
1389
1390		/**
1391	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1392	+	* be interrupted.  Clears the interrupt status before returning.
1393	+	*/
1394	+	void awaitInterrupted() {
1395	+	for (long startTime = 0L; !Thread.interrupted(); ) {
1396	+	if (startTime == 0L)
1397	+	startTime = System.nanoTime();
1398	+	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1399	+	fail("timed out waiting for thread interrupt");
1400	+	Thread.yield();
1401	+	}
1402	+	}
1403	+
1404	+	/**
1405		* Returns the number of milliseconds since time given by
1406		* startNanoTime, which must have been previously returned from a
1407		* call to {@link System#nanoTime()}.
#	Line 1367 | Line 1416 | public class JSR166TestCase extends Test
1416		//             r.run();
1417		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1418		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1419	<	//             throw new AssertionFailedError("did not return promptly");
1419	>	//             throw new AssertionError("did not return promptly");
1420		//     }
1421
1422		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1380 | Line 1429 | public class JSR166TestCase extends Test
1429		*/
1430		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1431		long startTime = System.nanoTime();
1432	+	T actual = null;
1433		try {
1434	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1434	>	actual = f.get(timeoutMillis, MILLISECONDS);
1435		} catch (Throwable fail) { threadUnexpectedException(fail); }
1436	+	assertEquals(expectedValue, actual);
1437		if (millisElapsedSince(startTime) > timeoutMillis/2)
1438	<	throw new AssertionFailedError("timed get did not return promptly");
1438	>	throw new AssertionError("timed get did not return promptly");
1439		}
1440
1441		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1406 | Line 1457 | public class JSR166TestCase extends Test
1457		* to terminate (using {@link Thread#join(long)}), else interrupts
1458		* the thread (in the hope that it may terminate later) and fails.
1459		*/
1460	<	void awaitTermination(Thread t, long timeoutMillis) {
1460	>	void awaitTermination(Thread thread, long timeoutMillis) {
1461		try {
1462	<	t.join(timeoutMillis);
1462	>	thread.join(timeoutMillis);
1463		} catch (InterruptedException fail) {
1464		threadUnexpectedException(fail);
1465	<	} finally {
1466	<	if (t.getState() != Thread.State.TERMINATED) {
1467	<	t.interrupt();
1468	<	threadFail("timed out waiting for thread to terminate");
1465	>	}
1466	>	if (thread.getState() != Thread.State.TERMINATED) {
1467	>	String detail = String.format(
1468	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1469	>	thread, thread.getState());
1470	>	try {
1471	>	threadFail(detail);
1472	>	} finally {
1473	>	// Interrupt thread __after__ having reported its stack trace
1474	>	thread.interrupt();
1475		}
1476		}
1477		}
#	Line 1442 | Line 1499 | public class JSR166TestCase extends Test
1499		}
1500		}
1501
1445	–	public abstract class RunnableShouldThrow implements Runnable {
1446	–	protected abstract void realRun() throws Throwable;
1447	–
1448	–	final Class<?> exceptionClass;
1449	–
1450	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1451	–	this.exceptionClass = exceptionClass;
1452	–	}
1453	–
1454	–	public final void run() {
1455	–	try {
1456	–	realRun();
1457	–	threadShouldThrow(exceptionClass.getSimpleName());
1458	–	} catch (Throwable t) {
1459	–	if (! exceptionClass.isInstance(t))
1460	–	threadUnexpectedException(t);
1461	–	}
1462	–	}
1463	–	}
1464	–
1502		public abstract class ThreadShouldThrow extends Thread {
1503		protected abstract void realRun() throws Throwable;
1504
#	Line 1474 | Line 1511 | public class JSR166TestCase extends Test
1511		public final void run() {
1512		try {
1513		realRun();
1477	–	threadShouldThrow(exceptionClass.getSimpleName());
1514		} catch (Throwable t) {
1515		if (! exceptionClass.isInstance(t))
1516		threadUnexpectedException(t);
1517	+	return;
1518		}
1519	+	threadShouldThrow(exceptionClass.getSimpleName());
1520		}
1521		}
1522
#	Line 1488 | Line 1526 | public class JSR166TestCase extends Test
1526		public final void run() {
1527		try {
1528		realRun();
1491	–	threadShouldThrow("InterruptedException");
1529		} catch (InterruptedException success) {
1530		threadAssertFalse(Thread.interrupted());
1531	+	return;
1532		} catch (Throwable fail) {
1533		threadUnexpectedException(fail);
1534		}
1535	+	threadShouldThrow("InterruptedException");
1536		}
1537		}
1538
#	Line 1505 | Line 1544 | public class JSR166TestCase extends Test
1544		return realCall();
1545		} catch (Throwable fail) {
1546		threadUnexpectedException(fail);
1508	–	return null;
1509	–	}
1510	–	}
1511	–	}
1512	–
1513	–	public abstract class CheckedInterruptedCallable<T>
1514	–	implements Callable<T> {
1515	–	protected abstract T realCall() throws Throwable;
1516	–
1517	–	public final T call() {
1518	–	try {
1519	–	T result = realCall();
1520	–	threadShouldThrow("InterruptedException");
1521	–	return result;
1522	–	} catch (InterruptedException success) {
1523	–	threadAssertFalse(Thread.interrupted());
1524	–	} catch (Throwable fail) {
1525	–	threadUnexpectedException(fail);
1547		}
1548	<	return null;
1548	>	throw new AssertionError("unreached");
1549		}
1550		}
1551
#	Line 1581 | Line 1602 | public class JSR166TestCase extends Test
1602		}
1603
1604		public void await(CountDownLatch latch, long timeoutMillis) {
1605	+	boolean timedOut = false;
1606		try {
1607	<	if (!latch.await(timeoutMillis, MILLISECONDS))
1586	<	fail("timed out waiting for CountDownLatch for "
1587	<	+ (timeoutMillis/1000) + " sec");
1607	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1608		} catch (Throwable fail) {
1609		threadUnexpectedException(fail);
1610		}
1611	+	if (timedOut)
1612	+	fail("timed out waiting for CountDownLatch for "
1613	+	+ (timeoutMillis/1000) + " sec");
1614		}
1615
1616		public void await(CountDownLatch latch) {
#	Line 1595 | Line 1618 | public class JSR166TestCase extends Test
1618		}
1619
1620		public void await(Semaphore semaphore) {
1621	+	boolean timedOut = false;
1622		try {
1623	<	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1624	<	fail("timed out waiting for Semaphore for "
1625	<	+ (LONG_DELAY_MS/1000) + " sec");
1623	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1624	>	} catch (Throwable fail) {
1625	>	threadUnexpectedException(fail);
1626	>	}
1627	>	if (timedOut)
1628	>	fail("timed out waiting for Semaphore for "
1629	>	+ (LONG_DELAY_MS/1000) + " sec");
1630	>	}
1631	>
1632	>	public void await(CyclicBarrier barrier) {
1633	>	try {
1634	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1635		} catch (Throwable fail) {
1636		threadUnexpectedException(fail);
1637		}
#	Line 1618 | Line 1651 | public class JSR166TestCase extends Test
1651		//         long startTime = System.nanoTime();
1652		//         while (!flag.get()) {
1653		//             if (millisElapsedSince(startTime) > timeoutMillis)
1654	<	//                 throw new AssertionFailedError("timed out");
1654	>	//                 throw new AssertionError("timed out");
1655		//             Thread.yield();
1656		//         }
1657		//     }
#	Line 1627 | Line 1660 | public class JSR166TestCase extends Test
1660		public String call() { throw new NullPointerException(); }
1661		}
1662
1630	–	public static class CallableOne implements Callable<Integer> {
1631	–	public Integer call() { return one; }
1632	–	}
1633	–
1634	–	public class ShortRunnable extends CheckedRunnable {
1635	–	protected void realRun() throws Throwable {
1636	–	delay(SHORT_DELAY_MS);
1637	–	}
1638	–	}
1639	–
1640	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1641	–	protected void realRun() throws InterruptedException {
1642	–	delay(SHORT_DELAY_MS);
1643	–	}
1644	–	}
1645	–
1646	–	public class SmallRunnable extends CheckedRunnable {
1647	–	protected void realRun() throws Throwable {
1648	–	delay(SMALL_DELAY_MS);
1649	–	}
1650	–	}
1651	–
1652	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1653	–	protected void realRun() {
1654	–	try {
1655	–	delay(SMALL_DELAY_MS);
1656	–	} catch (InterruptedException ok) {}
1657	–	}
1658	–	}
1659	–
1660	–	public class SmallCallable extends CheckedCallable {
1661	–	protected Object realCall() throws InterruptedException {
1662	–	delay(SMALL_DELAY_MS);
1663	–	return Boolean.TRUE;
1664	–	}
1665	–	}
1666	–
1667	–	public class MediumRunnable extends CheckedRunnable {
1668	–	protected void realRun() throws Throwable {
1669	–	delay(MEDIUM_DELAY_MS);
1670	–	}
1671	–	}
1672	–
1673	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1674	–	protected void realRun() throws InterruptedException {
1675	–	delay(MEDIUM_DELAY_MS);
1676	–	}
1677	–	}
1678	–
1663		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1664		return new CheckedRunnable() {
1665		protected void realRun() {
#	Line 1685 | Line 1669 | public class JSR166TestCase extends Test
1669		}};
1670		}
1671
1688	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1689	–	protected void realRun() {
1690	–	try {
1691	–	delay(MEDIUM_DELAY_MS);
1692	–	} catch (InterruptedException ok) {}
1693	–	}
1694	–	}
1695	–
1696	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1697	–	protected void realRun() {
1698	–	try {
1699	–	delay(LONG_DELAY_MS);
1700	–	} catch (InterruptedException ok) {}
1701	–	}
1702	–	}
1703	–
1672		/**
1673		* For use as ThreadFactory in constructors
1674		*/
#	Line 1714 | Line 1682 | public class JSR166TestCase extends Test
1682		boolean isDone();
1683		}
1684
1717	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1718	–	return new TrackedRunnable() {
1719	–	private volatile boolean done = false;
1720	–	public boolean isDone() { return done; }
1721	–	public void run() {
1722	–	try {
1723	–	delay(timeoutMillis);
1724	–	done = true;
1725	–	} catch (InterruptedException ok) {}
1726	–	}
1727	–	};
1728	–	}
1729	–
1730	–	public static class TrackedShortRunnable implements Runnable {
1731	–	public volatile boolean done = false;
1732	–	public void run() {
1733	–	try {
1734	–	delay(SHORT_DELAY_MS);
1735	–	done = true;
1736	–	} catch (InterruptedException ok) {}
1737	–	}
1738	–	}
1739	–
1740	–	public static class TrackedSmallRunnable implements Runnable {
1741	–	public volatile boolean done = false;
1742	–	public void run() {
1743	–	try {
1744	–	delay(SMALL_DELAY_MS);
1745	–	done = true;
1746	–	} catch (InterruptedException ok) {}
1747	–	}
1748	–	}
1749	–
1750	–	public static class TrackedMediumRunnable implements Runnable {
1751	–	public volatile boolean done = false;
1752	–	public void run() {
1753	–	try {
1754	–	delay(MEDIUM_DELAY_MS);
1755	–	done = true;
1756	–	} catch (InterruptedException ok) {}
1757	–	}
1758	–	}
1759	–
1760	–	public static class TrackedLongRunnable implements Runnable {
1761	–	public volatile boolean done = false;
1762	–	public void run() {
1763	–	try {
1764	–	delay(LONG_DELAY_MS);
1765	–	done = true;
1766	–	} catch (InterruptedException ok) {}
1767	–	}
1768	–	}
1769	–
1685		public static class TrackedNoOpRunnable implements Runnable {
1686		public volatile boolean done = false;
1687		public void run() {
#	Line 1774 | Line 1689 | public class JSR166TestCase extends Test
1689		}
1690		}
1691
1777	–	public static class TrackedCallable implements Callable {
1778	–	public volatile boolean done = false;
1779	–	public Object call() {
1780	–	try {
1781	–	delay(SMALL_DELAY_MS);
1782	–	done = true;
1783	–	} catch (InterruptedException ok) {}
1784	–	return Boolean.TRUE;
1785	–	}
1786	–	}
1787	–
1692		/**
1693		* Analog of CheckedRunnable for RecursiveAction
1694		*/
#	Line 1811 | Line 1715 | public class JSR166TestCase extends Test
1715		return realCompute();
1716		} catch (Throwable fail) {
1717		threadUnexpectedException(fail);
1814	–	return null;
1718		}
1719	+	throw new AssertionError("unreached");
1720		}
1721		}
1722
#	Line 1826 | Line 1730 | public class JSR166TestCase extends Test
1730
1731		/**
1732		* A CyclicBarrier that uses timed await and fails with
1733	<	* AssertionFailedErrors instead of throwing checked exceptions.
1733	>	* AssertionErrors instead of throwing checked exceptions.
1734		*/
1735		public static class CheckedBarrier extends CyclicBarrier {
1736		public CheckedBarrier(int parties) { super(parties); }
#	Line 1835 | Line 1739 | public class JSR166TestCase extends Test
1739		try {
1740		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1741		} catch (TimeoutException timedOut) {
1742	<	throw new AssertionFailedError("timed out");
1742	>	throw new AssertionError("timed out");
1743		} catch (Exception fail) {
1744	<	AssertionFailedError afe =
1841	<	new AssertionFailedError("Unexpected exception: " + fail);
1842	<	afe.initCause(fail);
1843	<	throw afe;
1744	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1745		}
1746		}
1747		}
#	Line 1851 | Line 1752 | public class JSR166TestCase extends Test
1752		assertEquals(0, q.size());
1753		assertNull(q.peek());
1754		assertNull(q.poll());
1755	<	assertNull(q.poll(0, MILLISECONDS));
1755	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1756		assertEquals(q.toString(), "[]");
1757		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1758		assertFalse(q.iterator().hasNext());
#	Line 1892 | Line 1793 | public class JSR166TestCase extends Test
1793		}
1794		}
1795
1796	<	void assertImmutable(final Object o) {
1796	>	void assertImmutable(Object o) {
1797		if (o instanceof Collection) {
1798		assertThrows(
1799		UnsupportedOperationException.class,
1800	<	new Runnable() { public void run() {
1900	<	((Collection) o).add(null);}});
1800	>	() -> ((Collection) o).add(null));
1801		}
1802		}
1803
1804		@SuppressWarnings("unchecked")
1805		<T> T serialClone(T o) {
1806	+	T clone = null;
1807		try {
1808		ObjectInputStream ois = new ObjectInputStream
1809		(new ByteArrayInputStream(serialBytes(o)));
1810	<	T clone = (T) ois.readObject();
1910	<	if (o == clone) assertImmutable(o);
1911	<	assertSame(o.getClass(), clone.getClass());
1912	<	return clone;
1810	>	clone = (T) ois.readObject();
1811		} catch (Throwable fail) {
1812		threadUnexpectedException(fail);
1915	–	return null;
1813		}
1814	+	if (o == clone) assertImmutable(o);
1815	+	else assertSame(o.getClass(), clone.getClass());
1816	+	return clone;
1817		}
1818
1819		/**
#	Line 1932 | Line 1832 | public class JSR166TestCase extends Test
1832		(new ByteArrayInputStream(bos.toByteArray()));
1833		T clone = (T) ois.readObject();
1834		if (o == clone) assertImmutable(o);
1835	<	assertSame(o.getClass(), clone.getClass());
1835	>	else assertSame(o.getClass(), clone.getClass());
1836		return clone;
1837		}
1838
#	Line 1957 | Line 1857 | public class JSR166TestCase extends Test
1857		}
1858
1859		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1860	<	Runnable... throwingActions) {
1861	<	for (Runnable throwingAction : throwingActions) {
1860	>	Action... throwingActions) {
1861	>	for (Action throwingAction : throwingActions) {
1862		boolean threw = false;
1863		try { throwingAction.run(); }
1864		catch (Throwable t) {
1865		threw = true;
1866	<	if (!expectedExceptionClass.isInstance(t)) {
1867	<	AssertionFailedError afe =
1868	<	new AssertionFailedError
1869	<	("Expected " + expectedExceptionClass.getName() +
1870	<	", got " + t.getClass().getName());
1971	<	afe.initCause(t);
1972	<	threadUnexpectedException(afe);
1973	<	}
1866	>	if (!expectedExceptionClass.isInstance(t))
1867	>	throw new AssertionError(
1868	>	"Expected " + expectedExceptionClass.getName() +
1869	>	", got " + t.getClass().getName(),
1870	>	t);
1871		}
1872		if (!threw)
1873		shouldThrow(expectedExceptionClass.getName());
#	Line 2002 | Line 1899 | public class JSR166TestCase extends Test
1899		static <T> void shuffle(T[] array) {
1900		Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1901		}
1902	+
1903	+	/**
1904	+	* Returns the same String as would be returned by {@link
1905	+	* Object#toString}, whether or not the given object's class
1906	+	* overrides toString().
1907	+	*
1908	+	* @see System#identityHashCode
1909	+	*/
1910	+	static String identityString(Object x) {
1911	+	return x.getClass().getName()
1912	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1913	+	}
1914	+
1915	+	// --- Shared assertions for Executor tests ---
1916	+
1917	+	/**
1918	+	* Returns maximum number of tasks that can be submitted to given
1919	+	* pool (with bounded queue) before saturation (when submission
1920	+	* throws RejectedExecutionException).
1921	+	*/
1922	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1923	+	BlockingQueue<Runnable> q = pool.getQueue();
1924	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1925	+	}
1926	+
1927	+	@SuppressWarnings("FutureReturnValueIgnored")
1928	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1929	+	try {
1930	+	e.execute((Runnable) null);
1931	+	shouldThrow();
1932	+	} catch (NullPointerException success) {}
1933	+
1934	+	if (! (e instanceof ExecutorService)) return;
1935	+	ExecutorService es = (ExecutorService) e;
1936	+	try {
1937	+	es.submit((Runnable) null);
1938	+	shouldThrow();
1939	+	} catch (NullPointerException success) {}
1940	+	try {
1941	+	es.submit((Runnable) null, Boolean.TRUE);
1942	+	shouldThrow();
1943	+	} catch (NullPointerException success) {}
1944	+	try {
1945	+	es.submit((Callable) null);
1946	+	shouldThrow();
1947	+	} catch (NullPointerException success) {}
1948	+
1949	+	if (! (e instanceof ScheduledExecutorService)) return;
1950	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1951	+	try {
1952	+	ses.schedule((Runnable) null,
1953	+	randomTimeout(), randomTimeUnit());
1954	+	shouldThrow();
1955	+	} catch (NullPointerException success) {}
1956	+	try {
1957	+	ses.schedule((Callable) null,
1958	+	randomTimeout(), randomTimeUnit());
1959	+	shouldThrow();
1960	+	} catch (NullPointerException success) {}
1961	+	try {
1962	+	ses.scheduleAtFixedRate((Runnable) null,
1963	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1964	+	shouldThrow();
1965	+	} catch (NullPointerException success) {}
1966	+	try {
1967	+	ses.scheduleWithFixedDelay((Runnable) null,
1968	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1969	+	shouldThrow();
1970	+	} catch (NullPointerException success) {}
1971	+	}
1972	+
1973	+	void setRejectedExecutionHandler(
1974	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1975	+	p.setRejectedExecutionHandler(handler);
1976	+	assertSame(handler, p.getRejectedExecutionHandler());
1977	+	}
1978	+
1979	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1980	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1981	+	final long savedTaskCount = p.getTaskCount();
1982	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1983	+	final int savedQueueSize = p.getQueue().size();
1984	+	final boolean stock = (p.getClass().getClassLoader() == null);
1985	+
1986	+	Runnable r = () -> {};
1987	+	Callable<Boolean> c = () -> Boolean.TRUE;
1988	+
1989	+	class Recorder implements RejectedExecutionHandler {
1990	+	public volatile Runnable r = null;
1991	+	public volatile ThreadPoolExecutor p = null;
1992	+	public void reset() { r = null; p = null; }
1993	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1994	+	assertNull(this.r);
1995	+	assertNull(this.p);
1996	+	this.r = r;
1997	+	this.p = p;
1998	+	}
1999	+	}
2000	+
2001	+	// check custom handler is invoked exactly once per task
2002	+	Recorder recorder = new Recorder();
2003	+	setRejectedExecutionHandler(p, recorder);
2004	+	for (int i = 2; i--> 0; ) {
2005	+	recorder.reset();
2006	+	p.execute(r);
2007	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2008	+	assertSame(r, recorder.r);
2009	+	assertSame(p, recorder.p);
2010	+
2011	+	recorder.reset();
2012	+	assertFalse(p.submit(r).isDone());
2013	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2014	+	assertSame(p, recorder.p);
2015	+
2016	+	recorder.reset();
2017	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2018	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2019	+	assertSame(p, recorder.p);
2020	+
2021	+	recorder.reset();
2022	+	assertFalse(p.submit(c).isDone());
2023	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2024	+	assertSame(p, recorder.p);
2025	+
2026	+	if (p instanceof ScheduledExecutorService) {
2027	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2028	+	ScheduledFuture<?> future;
2029	+
2030	+	recorder.reset();
2031	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2032	+	assertFalse(future.isDone());
2033	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2034	+	assertSame(p, recorder.p);
2035	+
2036	+	recorder.reset();
2037	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2038	+	assertFalse(future.isDone());
2039	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2040	+	assertSame(p, recorder.p);
2041	+
2042	+	recorder.reset();
2043	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2044	+	assertFalse(future.isDone());
2045	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2046	+	assertSame(p, recorder.p);
2047	+
2048	+	recorder.reset();
2049	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2050	+	assertFalse(future.isDone());
2051	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2052	+	assertSame(p, recorder.p);
2053	+	}
2054	+	}
2055	+
2056	+	// Checking our custom handler above should be sufficient, but
2057	+	// we add some integration tests of standard handlers.
2058	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2059	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2060	+
2061	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2062	+	try {
2063	+	p.execute(setThread);
2064	+	shouldThrow();
2065	+	} catch (RejectedExecutionException success) {}
2066	+	assertNull(thread.get());
2067	+
2068	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2069	+	p.execute(setThread);
2070	+	assertNull(thread.get());
2071	+
2072	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2073	+	p.execute(setThread);
2074	+	if (p.isShutdown())
2075	+	assertNull(thread.get());
2076	+	else
2077	+	assertSame(Thread.currentThread(), thread.get());
2078	+
2079	+	setRejectedExecutionHandler(p, savedHandler);
2080	+
2081	+	// check that pool was not perturbed by handlers
2082	+	assertEquals(savedTaskCount, p.getTaskCount());
2083	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2084	+	assertEquals(savedQueueSize, p.getQueue().size());
2085	+	}
2086	+
2087	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2088	+	assertEquals(x, y);
2089	+	assertEquals(y, x);
2090	+	assertEquals(x.isEmpty(), y.isEmpty());
2091	+	assertEquals(x.size(), y.size());
2092	+	if (x instanceof List) {
2093	+	assertEquals(x.toString(), y.toString());
2094	+	}
2095	+	if (x instanceof List || x instanceof Set) {
2096	+	assertEquals(x.hashCode(), y.hashCode());
2097	+	}
2098	+	if (x instanceof List || x instanceof Deque) {
2099	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2100	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2101	+	y.toArray(new Object[0])));
2102	+	}
2103	+	}
2104	+
2105	+	/**
2106	+	* A weaker form of assertCollectionsEquals which does not insist
2107	+	* that the two collections satisfy Object#equals(Object), since
2108	+	* they may use identity semantics as Deques do.
2109	+	*/
2110	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2111	+	if (x instanceof List || x instanceof Set)
2112	+	assertCollectionsEquals(x, y);
2113	+	else {
2114	+	assertEquals(x.isEmpty(), y.isEmpty());
2115	+	assertEquals(x.size(), y.size());
2116	+	assertEquals(new HashSet(x), new HashSet(y));
2117	+	if (x instanceof Deque) {
2118	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2119	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2120	+	y.toArray(new Object[0])));
2121	+	}
2122	+	}
2123	+	}
2124		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines