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 1.226 by jsr166, Sun May 14 00:37:42 2017 UTC vs.
Revision 1.266 by jsr166, Sat Sep 7 17:40:05 2019 UTC

#	Line 66 | 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
96	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107		import junit.framework.TestResult;
#	Line 109 | 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 268 | Line 284 | public class JSR166TestCase extends Test
284		static volatile TestCase currentTestCase;
285		// static volatile int currentRun = 0;
286		static {
287	<	Runnable checkForWedgedTest = new Runnable() { public void run() {
287	>	Runnable wedgedTestDetector = new Runnable() { public void run() {
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 293 | Line 310 | public class JSR166TestCase extends Test
310		}
311		lastTestCase = currentTestCase;
312		}}};
313	<	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
313	>	Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
314		thread.setDaemon(true);
315		thread.start();
316		}
#	Line 413 | 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",
417	<	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 439 | 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 502 | 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 538 | 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 600 | 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 617 | 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 639 | 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 656 | 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
#	Line 694 | 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 706 | 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 727 | 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 =
732	<	new AssertionFailedError(t.toString());
733	<	afe.initCause(t);
734	<	throw afe;
735	<	}
797	>	else
798	>	throw new AssertionError(t.toString(), t);
799		}
800
801		if (Thread.interrupted())
#	Line 766 | 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 852 | 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 880 | 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 890 | 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 =
895	<	new AssertionFailedError("unexpected exception: " + t);
896	<	afe.initCause(t);
897	<	throw afe;
898	<	}
956	>	else
957	>	throw new AssertionError("unexpected exception: " + t, t);
958		}
959
960		/**
#	Line 1024 | Line 1083 | public class JSR166TestCase extends Test
1083		}
1084		}
1085
1086	+	/** Returns true if thread info might be useful in a thread dump. */
1087	+	static boolean threadOfInterest(ThreadInfo info) {
1088	+	final String name = info.getThreadName();
1089	+	String lockName;
1090	+	if (name == null)
1091	+	return true;
1092	+	if (name.equals("Signal Dispatcher")
1093	+	|| name.equals("WedgedTestDetector"))
1094	+	return false;
1095	+	if (name.equals("Reference Handler")) {
1096	+	// Reference Handler stacktrace changed in JDK-8156500
1097	+	StackTraceElement[] stackTrace; String methodName;
1098	+	if ((stackTrace = info.getStackTrace()) != null
1099	+	&& stackTrace.length > 0
1100	+	&& (methodName = stackTrace[0].getMethodName()) != null
1101	+	&& methodName.equals("waitForReferencePendingList"))
1102	+	return false;
1103	+	// jdk8 Reference Handler stacktrace
1104	+	if ((lockName = info.getLockName()) != null
1105	+	&& lockName.startsWith("java.lang.ref"))
1106	+	return false;
1107	+	}
1108	+	if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1109	+	&& (lockName = info.getLockName()) != null
1110	+	&& lockName.startsWith("java.lang.ref"))
1111	+	return false;
1112	+	if (name.startsWith("ForkJoinPool.commonPool-worker")
1113	+	&& (lockName = info.getLockName()) != null
1114	+	&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1115	+	return false;
1116	+	return true;
1117	+	}
1118	+
1119		/**
1120		* A debugging tool to print stack traces of most threads, as jstack does.
1121		* Uninteresting threads are filtered out.
#	Line 1040 | Line 1132 | public class JSR166TestCase extends Test
1132
1133		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1134		System.err.println("------ stacktrace dump start ------");
1135	<	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1136	<	final String name = info.getThreadName();
1137	<	String lockName;
1046	<	if ("Signal Dispatcher".equals(name))
1047	<	continue;
1048	<	if ("Reference Handler".equals(name)
1049	<	&& (lockName = info.getLockName()) != null
1050	<	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1051	<	continue;
1052	<	if ("Finalizer".equals(name)
1053	<	&& (lockName = info.getLockName()) != null
1054	<	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1055	<	continue;
1056	<	if ("checkForWedgedTest".equals(name))
1057	<	continue;
1058	<	System.err.print(info);
1059	<	}
1135	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true))
1136	>	if (threadOfInterest(info))
1137	>	System.err.print(info);
1138		System.err.println("------ stacktrace dump end ------");
1139
1140		if (sm != null) System.setSecurityManager(sm);
#	Line 1066 | Line 1144 | public class JSR166TestCase extends Test
1144		* Checks that thread eventually enters the expected blocked thread state.
1145		*/
1146		void assertThreadBlocks(Thread thread, Thread.State expected) {
1147	<	// always sleep at least 1 ms, avoiding transitional states
1148	<	// with high probability
1147	>	// always sleep at least 1 ms, with high probability avoiding
1148	>	// transitory states
1149		for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1150		try { delay(1); }
1151		catch (InterruptedException fail) {
1152	<	fail("Unexpected InterruptedException");
1152	>	throw new AssertionError("Unexpected InterruptedException", fail);
1153		}
1154		Thread.State s = thread.getState();
1155		if (s == expected)
#	Line 1083 | Line 1161 | public class JSR166TestCase extends Test
1161		}
1162
1163		/**
1086	–	* Checks that thread does not terminate within the default
1087	–	* millisecond delay of {@code timeoutMillis()}.
1088	–	*/
1089	–	void assertThreadStaysAlive(Thread thread) {
1090	–	assertThreadStaysAlive(thread, timeoutMillis());
1091	–	}
1092	–
1093	–	/**
1094	–	* Checks that thread does not terminate within the given millisecond delay.
1095	–	*/
1096	–	void assertThreadStaysAlive(Thread thread, long millis) {
1097	–	try {
1098	–	// No need to optimize the failing case via Thread.join.
1099	–	delay(millis);
1100	–	assertTrue(thread.isAlive());
1101	–	} catch (InterruptedException fail) {
1102	–	threadFail("Unexpected InterruptedException");
1103	–	}
1104	–	}
1105	–
1106	–	/**
1107	–	* Checks that the threads do not terminate within the default
1108	–	* millisecond delay of {@code timeoutMillis()}.
1109	–	*/
1110	–	void assertThreadsStayAlive(Thread... threads) {
1111	–	assertThreadsStayAlive(timeoutMillis(), threads);
1112	–	}
1113	–
1114	–	/**
1115	–	* Checks that the threads do not terminate within the given millisecond delay.
1116	–	*/
1117	–	void assertThreadsStayAlive(long millis, Thread... threads) {
1118	–	try {
1119	–	// No need to optimize the failing case via Thread.join.
1120	–	delay(millis);
1121	–	for (Thread thread : threads)
1122	–	assertTrue(thread.isAlive());
1123	–	} catch (InterruptedException fail) {
1124	–	threadFail("Unexpected InterruptedException");
1125	–	}
1126	–	}
1127	–
1128	–	/**
1164		* Checks that future.get times out, with the default timeout of
1165		* {@code timeoutMillis()}.
1166		*/
#	Line 1300 | Line 1335 | public class JSR166TestCase extends Test
1335
1336		/**
1337		* Sleeps until the given time has elapsed.
1338	<	* Throws AssertionFailedError if interrupted.
1338	>	* Throws AssertionError if interrupted.
1339		*/
1340		static void sleep(long millis) {
1341		try {
1342		delay(millis);
1343		} catch (InterruptedException fail) {
1344	<	AssertionFailedError afe =
1310	<	new AssertionFailedError("Unexpected InterruptedException");
1311	<	afe.initCause(fail);
1312	<	throw afe;
1344	>	throw new AssertionError("Unexpected InterruptedException", fail);
1345		}
1346		}
1347
1348		/**
1349		* Spin-waits up to the specified number of milliseconds for the given
1350		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1351	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1352		*/
1353	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1354	<	long startTime = 0L;
1355	<	for (;;) {
1356	<	Thread.State s = thread.getState();
1357	<	if (s == Thread.State.BLOCKED ||
1358	<	s == Thread.State.WAITING ||
1359	<	s == Thread.State.TIMED_WAITING)
1360	<	return;
1361	<	else if (s == Thread.State.TERMINATED)
1353	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1354	>	Callable<Boolean> waitingForGodot) {
1355	>	for (long startTime = 0L;;) {
1356	>	switch (thread.getState()) {
1357	>	default: break;
1358	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1359	>	try {
1360	>	if (waitingForGodot == null || waitingForGodot.call())
1361	>	return;
1362	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1363	>	break;
1364	>	case TERMINATED:
1365		fail("Unexpected thread termination");
1366	<	else if (startTime == 0L)
1366	>	}
1367	>
1368	>	if (startTime == 0L)
1369		startTime = System.nanoTime();
1370		else if (millisElapsedSince(startTime) > timeoutMillis) {
1371	<	threadAssertTrue(thread.isAlive());
1372	<	fail("timed out waiting for thread to enter wait state");
1371	>	assertTrue(thread.isAlive());
1372	>	if (waitingForGodot == null
1373	>	|| thread.getState() == Thread.State.RUNNABLE)
1374	>	fail("timed out waiting for thread to enter wait state");
1375	>	else
1376	>	fail("timed out waiting for condition, thread state="
1377	>	+ thread.getState());
1378		}
1379		Thread.yield();
1380		}
#	Line 1339 | Line 1382 | public class JSR166TestCase extends Test
1382
1383		/**
1384		* Spin-waits up to the specified number of milliseconds for the given
1385	<	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1343	<	* and additionally satisfy the given condition.
1385	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1386		*/
1387	<	void waitForThreadToEnterWaitState(
1388	<	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1347	<	long startTime = 0L;
1348	<	for (;;) {
1349	<	Thread.State s = thread.getState();
1350	<	if (s == Thread.State.BLOCKED ||
1351	<	s == Thread.State.WAITING ||
1352	<	s == Thread.State.TIMED_WAITING) {
1353	<	try {
1354	<	if (waitingForGodot.call())
1355	<	return;
1356	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
1357	<	}
1358	<	else if (s == Thread.State.TERMINATED)
1359	<	fail("Unexpected thread termination");
1360	<	else if (startTime == 0L)
1361	<	startTime = System.nanoTime();
1362	<	else if (millisElapsedSince(startTime) > timeoutMillis) {
1363	<	threadAssertTrue(thread.isAlive());
1364	<	fail("timed out waiting for thread to enter wait state");
1365	<	}
1366	<	Thread.yield();
1367	<	}
1387	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1388	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1389		}
1390
1391		/**
#	Line 1372 | Line 1393 | public class JSR166TestCase extends Test
1393		* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1394		*/
1395		void waitForThreadToEnterWaitState(Thread thread) {
1396	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1396	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1397		}
1398
1399		/**
#	Line 1380 | Line 1401 | public class JSR166TestCase extends Test
1401		* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1402		* and additionally satisfy the given condition.
1403		*/
1404	<	void waitForThreadToEnterWaitState(
1405	<	Thread thread, Callable<Boolean> waitingForGodot) {
1404	>	void waitForThreadToEnterWaitState(Thread thread,
1405	>	Callable<Boolean> waitingForGodot) {
1406		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1407		}
1408
1409		/**
1410	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1411	+	* be interrupted.  Clears the interrupt status before returning.
1412	+	*/
1413	+	void awaitInterrupted() {
1414	+	for (long startTime = 0L; !Thread.interrupted(); ) {
1415	+	if (startTime == 0L)
1416	+	startTime = System.nanoTime();
1417	+	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1418	+	fail("timed out waiting for thread interrupt");
1419	+	Thread.yield();
1420	+	}
1421	+	}
1422	+
1423	+	/**
1424		* Returns the number of milliseconds since time given by
1425		* startNanoTime, which must have been previously returned from a
1426		* call to {@link System#nanoTime()}.
#	Line 1394 | Line 1429 | public class JSR166TestCase extends Test
1429		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1430		}
1431
1397	–	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1398	–	//         long startTime = System.nanoTime();
1399	–	//         try {
1400	–	//             r.run();
1401	–	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1402	–	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1403	–	//             throw new AssertionFailedError("did not return promptly");
1404	–	//     }
1405	–
1406	–	//     void assertTerminatesPromptly(Runnable r) {
1407	–	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1408	–	//     }
1409	–
1432		/**
1433		* Checks that timed f.get() returns the expected value, and does not
1434		* wait for the timeout to elapse before returning.
1435		*/
1436		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1437		long startTime = System.nanoTime();
1438	+	T actual = null;
1439		try {
1440	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1440	>	actual = f.get(timeoutMillis, MILLISECONDS);
1441		} catch (Throwable fail) { threadUnexpectedException(fail); }
1442	+	assertEquals(expectedValue, actual);
1443		if (millisElapsedSince(startTime) > timeoutMillis/2)
1444	<	throw new AssertionFailedError("timed get did not return promptly");
1444	>	throw new AssertionError("timed get did not return promptly");
1445		}
1446
1447		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1439 | Line 1463 | public class JSR166TestCase extends Test
1463		* to terminate (using {@link Thread#join(long)}), else interrupts
1464		* the thread (in the hope that it may terminate later) and fails.
1465		*/
1466	<	void awaitTermination(Thread t, long timeoutMillis) {
1466	>	void awaitTermination(Thread thread, long timeoutMillis) {
1467		try {
1468	<	t.join(timeoutMillis);
1468	>	thread.join(timeoutMillis);
1469		} catch (InterruptedException fail) {
1470		threadUnexpectedException(fail);
1471	<	} finally {
1472	<	if (t.getState() != Thread.State.TERMINATED) {
1473	<	t.interrupt();
1474	<	threadFail("timed out waiting for thread to terminate");
1471	>	}
1472	>	if (thread.getState() != Thread.State.TERMINATED) {
1473	>	String detail = String.format(
1474	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1475	>	thread, thread.getState());
1476	>	try {
1477	>	threadFail(detail);
1478	>	} finally {
1479	>	// Interrupt thread __after__ having reported its stack trace
1480	>	thread.interrupt();
1481		}
1482		}
1483		}
#	Line 1475 | Line 1505 | public class JSR166TestCase extends Test
1505		}
1506		}
1507
1478	–	public abstract class RunnableShouldThrow implements Runnable {
1479	–	protected abstract void realRun() throws Throwable;
1480	–
1481	–	final Class<?> exceptionClass;
1482	–
1483	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1484	–	this.exceptionClass = exceptionClass;
1485	–	}
1486	–
1487	–	public final void run() {
1488	–	try {
1489	–	realRun();
1490	–	threadShouldThrow(exceptionClass.getSimpleName());
1491	–	} catch (Throwable t) {
1492	–	if (! exceptionClass.isInstance(t))
1493	–	threadUnexpectedException(t);
1494	–	}
1495	–	}
1496	–	}
1497	–
1508		public abstract class ThreadShouldThrow extends Thread {
1509		protected abstract void realRun() throws Throwable;
1510
#	Line 1507 | Line 1517 | public class JSR166TestCase extends Test
1517		public final void run() {
1518		try {
1519		realRun();
1510	–	threadShouldThrow(exceptionClass.getSimpleName());
1520		} catch (Throwable t) {
1521		if (! exceptionClass.isInstance(t))
1522		threadUnexpectedException(t);
1523	+	return;
1524		}
1525	+	threadShouldThrow(exceptionClass.getSimpleName());
1526		}
1527		}
1528
#	Line 1521 | Line 1532 | public class JSR166TestCase extends Test
1532		public final void run() {
1533		try {
1534		realRun();
1524	–	threadShouldThrow("InterruptedException");
1535		} catch (InterruptedException success) {
1536		threadAssertFalse(Thread.interrupted());
1537	+	return;
1538		} catch (Throwable fail) {
1539		threadUnexpectedException(fail);
1540		}
1541	+	threadShouldThrow("InterruptedException");
1542		}
1543		}
1544
#	Line 1538 | Line 1550 | public class JSR166TestCase extends Test
1550		return realCall();
1551		} catch (Throwable fail) {
1552		threadUnexpectedException(fail);
1541	–	return null;
1542	–	}
1543	–	}
1544	–	}
1545	–
1546	–	public abstract class CheckedInterruptedCallable<T>
1547	–	implements Callable<T> {
1548	–	protected abstract T realCall() throws Throwable;
1549	–
1550	–	public final T call() {
1551	–	try {
1552	–	T result = realCall();
1553	–	threadShouldThrow("InterruptedException");
1554	–	return result;
1555	–	} catch (InterruptedException success) {
1556	–	threadAssertFalse(Thread.interrupted());
1557	–	} catch (Throwable fail) {
1558	–	threadUnexpectedException(fail);
1553		}
1554	<	return null;
1554	>	throw new AssertionError("unreached");
1555		}
1556		}
1557
#	Line 1614 | Line 1608 | public class JSR166TestCase extends Test
1608		}
1609
1610		public void await(CountDownLatch latch, long timeoutMillis) {
1611	+	boolean timedOut = false;
1612		try {
1613	<	if (!latch.await(timeoutMillis, MILLISECONDS))
1619	<	fail("timed out waiting for CountDownLatch for "
1620	<	+ (timeoutMillis/1000) + " sec");
1613	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1614		} catch (Throwable fail) {
1615		threadUnexpectedException(fail);
1616		}
1617	+	if (timedOut)
1618	+	fail("timed out waiting for CountDownLatch for "
1619	+	+ (timeoutMillis/1000) + " sec");
1620		}
1621
1622		public void await(CountDownLatch latch) {
#	Line 1628 | Line 1624 | public class JSR166TestCase extends Test
1624		}
1625
1626		public void await(Semaphore semaphore) {
1627	+	boolean timedOut = false;
1628		try {
1629	<	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1633	<	fail("timed out waiting for Semaphore for "
1634	<	+ (LONG_DELAY_MS/1000) + " sec");
1629	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1630		} catch (Throwable fail) {
1631		threadUnexpectedException(fail);
1632		}
1633	+	if (timedOut)
1634	+	fail("timed out waiting for Semaphore for "
1635	+	+ (LONG_DELAY_MS/1000) + " sec");
1636		}
1637
1638		public void await(CyclicBarrier barrier) {
#	Line 1659 | Line 1657 | public class JSR166TestCase extends Test
1657		//         long startTime = System.nanoTime();
1658		//         while (!flag.get()) {
1659		//             if (millisElapsedSince(startTime) > timeoutMillis)
1660	<	//                 throw new AssertionFailedError("timed out");
1660	>	//                 throw new AssertionError("timed out");
1661		//             Thread.yield();
1662		//         }
1663		//     }
#	Line 1668 | Line 1666 | public class JSR166TestCase extends Test
1666		public String call() { throw new NullPointerException(); }
1667		}
1668
1671	–	public static class CallableOne implements Callable<Integer> {
1672	–	public Integer call() { return one; }
1673	–	}
1674	–
1675	–	public class ShortRunnable extends CheckedRunnable {
1676	–	protected void realRun() throws Throwable {
1677	–	delay(SHORT_DELAY_MS);
1678	–	}
1679	–	}
1680	–
1681	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1682	–	protected void realRun() throws InterruptedException {
1683	–	delay(SHORT_DELAY_MS);
1684	–	}
1685	–	}
1686	–
1687	–	public class SmallRunnable extends CheckedRunnable {
1688	–	protected void realRun() throws Throwable {
1689	–	delay(SMALL_DELAY_MS);
1690	–	}
1691	–	}
1692	–
1693	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1694	–	protected void realRun() {
1695	–	try {
1696	–	delay(SMALL_DELAY_MS);
1697	–	} catch (InterruptedException ok) {}
1698	–	}
1699	–	}
1700	–
1701	–	public class SmallCallable extends CheckedCallable {
1702	–	protected Object realCall() throws InterruptedException {
1703	–	delay(SMALL_DELAY_MS);
1704	–	return Boolean.TRUE;
1705	–	}
1706	–	}
1707	–
1708	–	public class MediumRunnable extends CheckedRunnable {
1709	–	protected void realRun() throws Throwable {
1710	–	delay(MEDIUM_DELAY_MS);
1711	–	}
1712	–	}
1713	–
1714	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1715	–	protected void realRun() throws InterruptedException {
1716	–	delay(MEDIUM_DELAY_MS);
1717	–	}
1718	–	}
1719	–
1669		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1670		return new CheckedRunnable() {
1671		protected void realRun() {
#	Line 1726 | Line 1675 | public class JSR166TestCase extends Test
1675		}};
1676		}
1677
1729	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1730	–	protected void realRun() {
1731	–	try {
1732	–	delay(MEDIUM_DELAY_MS);
1733	–	} catch (InterruptedException ok) {}
1734	–	}
1735	–	}
1736	–
1737	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1738	–	protected void realRun() {
1739	–	try {
1740	–	delay(LONG_DELAY_MS);
1741	–	} catch (InterruptedException ok) {}
1742	–	}
1743	–	}
1744	–
1678		/**
1679		* For use as ThreadFactory in constructors
1680		*/
#	Line 1755 | Line 1688 | public class JSR166TestCase extends Test
1688		boolean isDone();
1689		}
1690
1758	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1759	–	return new TrackedRunnable() {
1760	–	private volatile boolean done = false;
1761	–	public boolean isDone() { return done; }
1762	–	public void run() {
1763	–	try {
1764	–	delay(timeoutMillis);
1765	–	done = true;
1766	–	} catch (InterruptedException ok) {}
1767	–	}
1768	–	};
1769	–	}
1770	–
1771	–	public static class TrackedShortRunnable implements Runnable {
1772	–	public volatile boolean done = false;
1773	–	public void run() {
1774	–	try {
1775	–	delay(SHORT_DELAY_MS);
1776	–	done = true;
1777	–	} catch (InterruptedException ok) {}
1778	–	}
1779	–	}
1780	–
1781	–	public static class TrackedSmallRunnable implements Runnable {
1782	–	public volatile boolean done = false;
1783	–	public void run() {
1784	–	try {
1785	–	delay(SMALL_DELAY_MS);
1786	–	done = true;
1787	–	} catch (InterruptedException ok) {}
1788	–	}
1789	–	}
1790	–
1791	–	public static class TrackedMediumRunnable implements Runnable {
1792	–	public volatile boolean done = false;
1793	–	public void run() {
1794	–	try {
1795	–	delay(MEDIUM_DELAY_MS);
1796	–	done = true;
1797	–	} catch (InterruptedException ok) {}
1798	–	}
1799	–	}
1800	–
1801	–	public static class TrackedLongRunnable implements Runnable {
1802	–	public volatile boolean done = false;
1803	–	public void run() {
1804	–	try {
1805	–	delay(LONG_DELAY_MS);
1806	–	done = true;
1807	–	} catch (InterruptedException ok) {}
1808	–	}
1809	–	}
1810	–
1691		public static class TrackedNoOpRunnable implements Runnable {
1692		public volatile boolean done = false;
1693		public void run() {
#	Line 1815 | Line 1695 | public class JSR166TestCase extends Test
1695		}
1696		}
1697
1818	–	public static class TrackedCallable implements Callable {
1819	–	public volatile boolean done = false;
1820	–	public Object call() {
1821	–	try {
1822	–	delay(SMALL_DELAY_MS);
1823	–	done = true;
1824	–	} catch (InterruptedException ok) {}
1825	–	return Boolean.TRUE;
1826	–	}
1827	–	}
1828	–
1698		/**
1699		* Analog of CheckedRunnable for RecursiveAction
1700		*/
#	Line 1852 | Line 1721 | public class JSR166TestCase extends Test
1721		return realCompute();
1722		} catch (Throwable fail) {
1723		threadUnexpectedException(fail);
1855	–	return null;
1724		}
1725	+	throw new AssertionError("unreached");
1726		}
1727		}
1728
#	Line 1867 | Line 1736 | public class JSR166TestCase extends Test
1736
1737		/**
1738		* A CyclicBarrier that uses timed await and fails with
1739	<	* AssertionFailedErrors instead of throwing checked exceptions.
1739	>	* AssertionErrors instead of throwing checked exceptions.
1740		*/
1741		public static class CheckedBarrier extends CyclicBarrier {
1742		public CheckedBarrier(int parties) { super(parties); }
#	Line 1876 | Line 1745 | public class JSR166TestCase extends Test
1745		try {
1746		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1747		} catch (TimeoutException timedOut) {
1748	<	throw new AssertionFailedError("timed out");
1748	>	throw new AssertionError("timed out");
1749		} catch (Exception fail) {
1750	<	AssertionFailedError afe =
1882	<	new AssertionFailedError("Unexpected exception: " + fail);
1883	<	afe.initCause(fail);
1884	<	throw afe;
1750	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1751		}
1752		}
1753		}
#	Line 1892 | Line 1758 | public class JSR166TestCase extends Test
1758		assertEquals(0, q.size());
1759		assertNull(q.peek());
1760		assertNull(q.poll());
1761	<	assertNull(q.poll(0, MILLISECONDS));
1761	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1762		assertEquals(q.toString(), "[]");
1763		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1764		assertFalse(q.iterator().hasNext());
#	Line 1933 | Line 1799 | public class JSR166TestCase extends Test
1799		}
1800		}
1801
1802	<	void assertImmutable(final Object o) {
1802	>	void assertImmutable(Object o) {
1803		if (o instanceof Collection) {
1804		assertThrows(
1805		UnsupportedOperationException.class,
1806	<	new Runnable() { public void run() {
1941	<	((Collection) o).add(null);}});
1806	>	() -> ((Collection) o).add(null));
1807		}
1808		}
1809
1810		@SuppressWarnings("unchecked")
1811		<T> T serialClone(T o) {
1812	+	T clone = null;
1813		try {
1814		ObjectInputStream ois = new ObjectInputStream
1815		(new ByteArrayInputStream(serialBytes(o)));
1816	<	T clone = (T) ois.readObject();
1951	<	if (o == clone) assertImmutable(o);
1952	<	assertSame(o.getClass(), clone.getClass());
1953	<	return clone;
1816	>	clone = (T) ois.readObject();
1817		} catch (Throwable fail) {
1818		threadUnexpectedException(fail);
1956	–	return null;
1819		}
1820	+	if (o == clone) assertImmutable(o);
1821	+	else assertSame(o.getClass(), clone.getClass());
1822	+	return clone;
1823		}
1824
1825		/**
#	Line 1973 | Line 1838 | public class JSR166TestCase extends Test
1838		(new ByteArrayInputStream(bos.toByteArray()));
1839		T clone = (T) ois.readObject();
1840		if (o == clone) assertImmutable(o);
1841	<	assertSame(o.getClass(), clone.getClass());
1841	>	else assertSame(o.getClass(), clone.getClass());
1842		return clone;
1843		}
1844
#	Line 1998 | Line 1863 | public class JSR166TestCase extends Test
1863		}
1864
1865		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1866	<	Runnable... throwingActions) {
1867	<	for (Runnable throwingAction : throwingActions) {
1866	>	Action... throwingActions) {
1867	>	for (Action throwingAction : throwingActions) {
1868		boolean threw = false;
1869		try { throwingAction.run(); }
1870		catch (Throwable t) {
1871		threw = true;
1872	<	if (!expectedExceptionClass.isInstance(t)) {
1873	<	AssertionFailedError afe =
1874	<	new AssertionFailedError
1875	<	("Expected " + expectedExceptionClass.getName() +
1876	<	", got " + t.getClass().getName());
2012	<	afe.initCause(t);
2013	<	threadUnexpectedException(afe);
2014	<	}
1872	>	if (!expectedExceptionClass.isInstance(t))
1873	>	throw new AssertionError(
1874	>	"Expected " + expectedExceptionClass.getName() +
1875	>	", got " + t.getClass().getName(),
1876	>	t);
1877		}
1878		if (!threw)
1879		shouldThrow(expectedExceptionClass.getName());
#	Line 2043 | Line 1905 | public class JSR166TestCase extends Test
1905		static <T> void shuffle(T[] array) {
1906		Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1907		}
1908	+
1909	+	/**
1910	+	* Returns the same String as would be returned by {@link
1911	+	* Object#toString}, whether or not the given object's class
1912	+	* overrides toString().
1913	+	*
1914	+	* @see System#identityHashCode
1915	+	*/
1916	+	static String identityString(Object x) {
1917	+	return x.getClass().getName()
1918	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1919	+	}
1920	+
1921	+	// --- Shared assertions for Executor tests ---
1922	+
1923	+	/**
1924	+	* Returns maximum number of tasks that can be submitted to given
1925	+	* pool (with bounded queue) before saturation (when submission
1926	+	* throws RejectedExecutionException).
1927	+	*/
1928	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1929	+	BlockingQueue<Runnable> q = pool.getQueue();
1930	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1931	+	}
1932	+
1933	+	@SuppressWarnings("FutureReturnValueIgnored")
1934	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1935	+	try {
1936	+	e.execute((Runnable) null);
1937	+	shouldThrow();
1938	+	} catch (NullPointerException success) {}
1939	+
1940	+	if (! (e instanceof ExecutorService)) return;
1941	+	ExecutorService es = (ExecutorService) e;
1942	+	try {
1943	+	es.submit((Runnable) null);
1944	+	shouldThrow();
1945	+	} catch (NullPointerException success) {}
1946	+	try {
1947	+	es.submit((Runnable) null, Boolean.TRUE);
1948	+	shouldThrow();
1949	+	} catch (NullPointerException success) {}
1950	+	try {
1951	+	es.submit((Callable) null);
1952	+	shouldThrow();
1953	+	} catch (NullPointerException success) {}
1954	+
1955	+	if (! (e instanceof ScheduledExecutorService)) return;
1956	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1957	+	try {
1958	+	ses.schedule((Runnable) null,
1959	+	randomTimeout(), randomTimeUnit());
1960	+	shouldThrow();
1961	+	} catch (NullPointerException success) {}
1962	+	try {
1963	+	ses.schedule((Callable) null,
1964	+	randomTimeout(), randomTimeUnit());
1965	+	shouldThrow();
1966	+	} catch (NullPointerException success) {}
1967	+	try {
1968	+	ses.scheduleAtFixedRate((Runnable) null,
1969	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1970	+	shouldThrow();
1971	+	} catch (NullPointerException success) {}
1972	+	try {
1973	+	ses.scheduleWithFixedDelay((Runnable) null,
1974	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1975	+	shouldThrow();
1976	+	} catch (NullPointerException success) {}
1977	+	}
1978	+
1979	+	void setRejectedExecutionHandler(
1980	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1981	+	p.setRejectedExecutionHandler(handler);
1982	+	assertSame(handler, p.getRejectedExecutionHandler());
1983	+	}
1984	+
1985	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1986	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1987	+	final long savedTaskCount = p.getTaskCount();
1988	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1989	+	final int savedQueueSize = p.getQueue().size();
1990	+	final boolean stock = (p.getClass().getClassLoader() == null);
1991	+
1992	+	Runnable r = () -> {};
1993	+	Callable<Boolean> c = () -> Boolean.TRUE;
1994	+
1995	+	class Recorder implements RejectedExecutionHandler {
1996	+	public volatile Runnable r = null;
1997	+	public volatile ThreadPoolExecutor p = null;
1998	+	public void reset() { r = null; p = null; }
1999	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2000	+	assertNull(this.r);
2001	+	assertNull(this.p);
2002	+	this.r = r;
2003	+	this.p = p;
2004	+	}
2005	+	}
2006	+
2007	+	// check custom handler is invoked exactly once per task
2008	+	Recorder recorder = new Recorder();
2009	+	setRejectedExecutionHandler(p, recorder);
2010	+	for (int i = 2; i--> 0; ) {
2011	+	recorder.reset();
2012	+	p.execute(r);
2013	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2014	+	assertSame(r, recorder.r);
2015	+	assertSame(p, recorder.p);
2016	+
2017	+	recorder.reset();
2018	+	assertFalse(p.submit(r).isDone());
2019	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2020	+	assertSame(p, recorder.p);
2021	+
2022	+	recorder.reset();
2023	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2024	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2025	+	assertSame(p, recorder.p);
2026	+
2027	+	recorder.reset();
2028	+	assertFalse(p.submit(c).isDone());
2029	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2030	+	assertSame(p, recorder.p);
2031	+
2032	+	if (p instanceof ScheduledExecutorService) {
2033	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2034	+	ScheduledFuture<?> future;
2035	+
2036	+	recorder.reset();
2037	+	future = s.schedule(r, 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.schedule(c, randomTimeout(), randomTimeUnit());
2044	+	assertFalse(future.isDone());
2045	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2046	+	assertSame(p, recorder.p);
2047	+
2048	+	recorder.reset();
2049	+	future = s.scheduleAtFixedRate(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	+	recorder.reset();
2055	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2056	+	assertFalse(future.isDone());
2057	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2058	+	assertSame(p, recorder.p);
2059	+	}
2060	+	}
2061	+
2062	+	// Checking our custom handler above should be sufficient, but
2063	+	// we add some integration tests of standard handlers.
2064	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2065	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2066	+
2067	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2068	+	try {
2069	+	p.execute(setThread);
2070	+	shouldThrow();
2071	+	} catch (RejectedExecutionException success) {}
2072	+	assertNull(thread.get());
2073	+
2074	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2075	+	p.execute(setThread);
2076	+	assertNull(thread.get());
2077	+
2078	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2079	+	p.execute(setThread);
2080	+	if (p.isShutdown())
2081	+	assertNull(thread.get());
2082	+	else
2083	+	assertSame(Thread.currentThread(), thread.get());
2084	+
2085	+	setRejectedExecutionHandler(p, savedHandler);
2086	+
2087	+	// check that pool was not perturbed by handlers
2088	+	assertEquals(savedTaskCount, p.getTaskCount());
2089	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2090	+	assertEquals(savedQueueSize, p.getQueue().size());
2091	+	}
2092	+
2093	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2094	+	assertEquals(x, y);
2095	+	assertEquals(y, x);
2096	+	assertEquals(x.isEmpty(), y.isEmpty());
2097	+	assertEquals(x.size(), y.size());
2098	+	if (x instanceof List) {
2099	+	assertEquals(x.toString(), y.toString());
2100	+	}
2101	+	if (x instanceof List || x instanceof Set) {
2102	+	assertEquals(x.hashCode(), y.hashCode());
2103	+	}
2104	+	if (x instanceof List || x instanceof Deque) {
2105	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2106	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2107	+	y.toArray(new Object[0])));
2108	+	}
2109	+	}
2110	+
2111	+	/**
2112	+	* A weaker form of assertCollectionsEquals which does not insist
2113	+	* that the two collections satisfy Object#equals(Object), since
2114	+	* they may use identity semantics as Deques do.
2115	+	*/
2116	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2117	+	if (x instanceof List || x instanceof Set)
2118	+	assertCollectionsEquals(x, y);
2119	+	else {
2120	+	assertEquals(x.isEmpty(), y.isEmpty());
2121	+	assertEquals(x.size(), y.size());
2122	+	assertEquals(new HashSet(x), new HashSet(y));
2123	+	if (x instanceof Deque) {
2124	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2125	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2126	+	y.toArray(new Object[0])));
2127	+	}
2128	+	}
2129	+	}
2130		}

Diff Legend

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