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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.192 by jsr166, Sun May 22 01:09:21 2016 UTC vs.
Revision 1.268 by jsr166, Sun Sep 22 01:59:57 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
13	<	* @modules java.management
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	<	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
16	>	* @modules java.management
17	>	* @run junit/othervm/timeout=1000 JSR166TestCase
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		*/
42
43		import static java.util.concurrent.TimeUnit.MILLISECONDS;
#	Line 23 | Line 49 | import java.io.ByteArrayOutputStream;
49		import java.io.ObjectInputStream;
50		import java.io.ObjectOutputStream;
51		import java.lang.management.ManagementFactory;
52	+	import java.lang.management.LockInfo;
53		import java.lang.management.ThreadInfo;
54		import java.lang.management.ThreadMXBean;
55		import java.lang.reflect.Constructor;
56		import java.lang.reflect.Method;
57		import java.lang.reflect.Modifier;
31	–	import java.nio.file.Files;
32	–	import java.nio.file.Paths;
58		import java.security.CodeSource;
59		import java.security.Permission;
60		import java.security.PermissionCollection;
#	Line 39 | Line 64 | import java.security.ProtectionDomain;
64		import java.security.SecurityPermission;
65		import java.util.ArrayList;
66		import java.util.Arrays;
67	+	import java.util.Collection;
68	+	import java.util.Collections;
69		import java.util.Date;
70	+	import java.util.Deque;
71		import java.util.Enumeration;
72	+	import java.util.HashSet;
73		import java.util.Iterator;
74		import java.util.List;
75		import java.util.NoSuchElementException;
76		import java.util.PropertyPermission;
77	+	import java.util.Set;
78		import java.util.concurrent.BlockingQueue;
79		import java.util.concurrent.Callable;
80		import java.util.concurrent.CountDownLatch;
81		import java.util.concurrent.CyclicBarrier;
82		import java.util.concurrent.ExecutionException;
83	+	import java.util.concurrent.Executor;
84		import java.util.concurrent.Executors;
85		import java.util.concurrent.ExecutorService;
86		import java.util.concurrent.ForkJoinPool;
87		import java.util.concurrent.Future;
88	+	import java.util.concurrent.FutureTask;
89		import java.util.concurrent.RecursiveAction;
90		import java.util.concurrent.RecursiveTask;
91	+	import java.util.concurrent.RejectedExecutionException;
92		import java.util.concurrent.RejectedExecutionHandler;
93		import java.util.concurrent.Semaphore;
94	+	import java.util.concurrent.ScheduledExecutorService;
95	+	import java.util.concurrent.ScheduledFuture;
96	+	import java.util.concurrent.SynchronousQueue;
97		import java.util.concurrent.ThreadFactory;
98	+	import java.util.concurrent.ThreadLocalRandom;
99		import java.util.concurrent.ThreadPoolExecutor;
100	+	import java.util.concurrent.TimeUnit;
101		import java.util.concurrent.TimeoutException;
102		import java.util.concurrent.atomic.AtomicBoolean;
103		import java.util.concurrent.atomic.AtomicReference;
66	–	import java.util.regex.Matcher;
104		import java.util.regex.Pattern;
105
69	–	import junit.framework.AssertionFailedError;
106		import junit.framework.Test;
107		import junit.framework.TestCase;
108		import junit.framework.TestResult;
#	Line 82 | Line 118 | import junit.framework.TestSuite;
118		*
119		* <ol>
120		*
121	<	* <li>All assertions in code running in generated threads must use
122	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
123	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
124	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
125	<	* particularly recommended) for other code to use these forms too.
126	<	* Only the most typically used JUnit assertion methods are defined
127	<	* this way, but enough to live with.
121	>	* <li>All code not running in the main test thread (manually spawned threads
122	>	* or the common fork join pool) must be checked for failure (and completion!).
123	>	* Mechanisms that can be used to ensure this are:
124	>	*   <ol>
125	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
126	>	*    that the task completed normally, which is checked before returning from
127	>	*    the test method in the main thread.
128	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
129	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
130	>	*    Only the most typically used JUnit assertion methods are defined
131	>	*    this way, but enough to live with.
132	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
133	>	*    or {@link #threadRecordFailure}.
134	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
135	>	*   </ol>
136		*
137		* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
138		* to invoke {@code super.setUp} and {@code super.tearDown} within
#	Line 200 | Line 244 | public class JSR166TestCase extends Test
244		}
245		}
246
247	+	private static final ThreadMXBean THREAD_MXBEAN
248	+	= ManagementFactory.getThreadMXBean();
249	+
250		/**
251		* The scaling factor to apply to standard delays used in tests.
252		* May be initialized from any of:
#	Line 241 | Line 288 | public class JSR166TestCase extends Test
288		static volatile TestCase currentTestCase;
289		// static volatile int currentRun = 0;
290		static {
291	<	Runnable checkForWedgedTest = new Runnable() { public void run() {
291	>	Runnable wedgedTestDetector = new Runnable() { public void run() {
292		// Avoid spurious reports with enormous runsPerTest.
293		// A single test case run should never take more than 1 second.
294		// But let's cap it at the high end too ...
295	<	final int timeoutMinutes =
296	<	Math.min(15, Math.max(runsPerTest / 60, 1));
295	>	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
296	>	* Math.max((int) delayFactor, 1);
297	>	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
298		for (TestCase lastTestCase = currentTestCase;;) {
299		try { MINUTES.sleep(timeoutMinutes); }
300		catch (InterruptedException unexpected) { break; }
#	Line 266 | Line 314 | public class JSR166TestCase extends Test
314		}
315		lastTestCase = currentTestCase;
316		}}};
317	<	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
317	>	Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
318		thread.setDaemon(true);
319		thread.start();
320		}
321
322		//     public static String cpuModel() {
323		//         try {
324	<	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
324	>	//             java.util.regex.Matcher matcher
325	>	//               = Pattern.compile("model name\\s*: (.*)")
326		//                 .matcher(new String(
327	<	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
327	>	//                     java.nio.file.Files.readAllBytes(
328	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
329		//             matcher.find();
330		//             return matcher.group(1);
331		//         } catch (Exception ex) { return null; }
#	Line 308 | Line 358 | public class JSR166TestCase extends Test
358		// Never report first run of any test; treat it as a
359		// warmup run, notably to trigger all needed classloading,
360		if (i > 0)
361	<	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
361	>	System.out.printf("%s: %d%n", toString(), elapsedMillis);
362		}
363		}
364
#	Line 384 | Line 434 | public class JSR166TestCase extends Test
434		for (String testClassName : testClassNames) {
435		try {
436		Class<?> testClass = Class.forName(testClassName);
437	<	Method m = testClass.getDeclaredMethod("suite",
388	<	new Class<?>[0]);
437	>	Method m = testClass.getDeclaredMethod("suite");
438		suite.addTest(newTestSuite((Test)m.invoke(null)));
439	<	} catch (Exception e) {
440	<	throw new Error("Missing test class", e);
439	>	} catch (ReflectiveOperationException e) {
440	>	throw new AssertionError("Missing test class", e);
441		}
442		}
443		}
#	Line 410 | Line 459 | public class JSR166TestCase extends Test
459		}
460		}
461
462	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
463	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
464	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
465	<	public static boolean atLeastJava9() {
466	<	return JAVA_CLASS_VERSION >= 53.0
467	<	// As of 2015-09, java9 still uses 52.0 class file version
468	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
469	<	}
470	<	public static boolean atLeastJava10() {
471	<	return JAVA_CLASS_VERSION >= 54.0
472	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
473	<	}
462	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
463	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
464	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
465	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
466	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
467	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
468	>	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
469	>	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
470	>	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
471	>	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
472	>	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
473	>	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
474
475		/**
476		* Collects all JSR166 unit tests as one suite.
#	Line 442 | Line 491 | public class JSR166TestCase extends Test
491		AbstractQueuedLongSynchronizerTest.suite(),
492		ArrayBlockingQueueTest.suite(),
493		ArrayDequeTest.suite(),
494	+	ArrayListTest.suite(),
495		AtomicBooleanTest.suite(),
496		AtomicIntegerArrayTest.suite(),
497		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 464 | Line 514 | public class JSR166TestCase extends Test
514		CopyOnWriteArrayListTest.suite(),
515		CopyOnWriteArraySetTest.suite(),
516		CountDownLatchTest.suite(),
517	+	CountedCompleterTest.suite(),
518		CyclicBarrierTest.suite(),
519		DelayQueueTest.suite(),
520		EntryTest.suite(),
#	Line 471 | Line 522 | public class JSR166TestCase extends Test
522		ExecutorsTest.suite(),
523		ExecutorCompletionServiceTest.suite(),
524		FutureTaskTest.suite(),
525	+	HashtableTest.suite(),
526		LinkedBlockingDequeTest.suite(),
527		LinkedBlockingQueueTest.suite(),
528		LinkedListTest.suite(),
#	Line 492 | Line 544 | public class JSR166TestCase extends Test
544		TreeMapTest.suite(),
545		TreeSetTest.suite(),
546		TreeSubMapTest.suite(),
547	<	TreeSubSetTest.suite());
547	>	TreeSubSetTest.suite(),
548	>	VectorTest.suite());
549
550		// Java8+ test classes
551		if (atLeastJava8()) {
552		String[] java8TestClassNames = {
553	+	"ArrayDeque8Test",
554		"Atomic8Test",
555		"CompletableFutureTest",
556		"ConcurrentHashMap8Test",
557	<	"CountedCompleterTest",
557	>	"CountedCompleter8Test",
558		"DoubleAccumulatorTest",
559		"DoubleAdderTest",
560		"ForkJoinPool8Test",
561		"ForkJoinTask8Test",
562	+	"HashMapTest",
563	+	"LinkedBlockingDeque8Test",
564	+	"LinkedBlockingQueue8Test",
565	+	"LinkedHashMapTest",
566		"LongAccumulatorTest",
567		"LongAdderTest",
568		"SplittableRandomTest",
#	Line 519 | Line 577 | public class JSR166TestCase extends Test
577		// Java9+ test classes
578		if (atLeastJava9()) {
579		String[] java9TestClassNames = {
580	+	"AtomicBoolean9Test",
581	+	"AtomicInteger9Test",
582	+	"AtomicIntegerArray9Test",
583	+	"AtomicLong9Test",
584	+	"AtomicLongArray9Test",
585	+	"AtomicReference9Test",
586	+	"AtomicReferenceArray9Test",
587		"ExecutorCompletionService9Test",
588	+	"ForkJoinPool9Test",
589		};
590		addNamedTestClasses(suite, java9TestClassNames);
591		}
#	Line 530 | Line 596 | public class JSR166TestCase extends Test
596		/** Returns list of junit-style test method names in given class. */
597		public static ArrayList<String> testMethodNames(Class<?> testClass) {
598		Method[] methods = testClass.getDeclaredMethods();
599	<	ArrayList<String> names = new ArrayList<String>(methods.length);
599	>	ArrayList<String> names = new ArrayList<>(methods.length);
600		for (Method method : methods) {
601		if (method.getName().startsWith("test")
602		&& Modifier.isPublic(method.getModifiers())
#	Line 557 | Line 623 | public class JSR166TestCase extends Test
623		for (String methodName : testMethodNames(testClass))
624		suite.addTest((Test) c.newInstance(data, methodName));
625		return suite;
626	<	} catch (Exception e) {
627	<	throw new Error(e);
626	>	} catch (ReflectiveOperationException e) {
627	>	throw new AssertionError(e);
628		}
629		}
630
#	Line 574 | Line 640 | public class JSR166TestCase extends Test
640		if (atLeastJava8()) {
641		String name = testClass.getName();
642		String name8 = name.replaceAll("Test$", "8Test");
643	<	if (name.equals(name8)) throw new Error(name);
643	>	if (name.equals(name8)) throw new AssertionError(name);
644		try {
645		return (Test)
646		Class.forName(name8)
647	<	.getMethod("testSuite", new Class[] { dataClass })
647	>	.getMethod("testSuite", dataClass)
648		.invoke(null, data);
649	<	} catch (Exception e) {
650	<	throw new Error(e);
649	>	} catch (ReflectiveOperationException e) {
650	>	throw new AssertionError(e);
651		}
652		} else {
653		return new TestSuite();
#	Line 596 | Line 662 | public class JSR166TestCase extends Test
662		public static long LONG_DELAY_MS;
663
664		/**
665	+	* A delay significantly longer than LONG_DELAY_MS.
666	+	* Use this in a thread that is waited for via awaitTermination(Thread).
667	+	*/
668	+	public static long LONGER_DELAY_MS;
669	+
670	+	private static final long RANDOM_TIMEOUT;
671	+	private static final long RANDOM_EXPIRED_TIMEOUT;
672	+	private static final TimeUnit RANDOM_TIMEUNIT;
673	+	static {
674	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
675	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
676	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
677	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
678	+	TimeUnit[] timeUnits = TimeUnit.values();
679	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
680	+	}
681	+
682	+	/**
683	+	* Returns a timeout for use when any value at all will do.
684	+	*/
685	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
686	+
687	+	/**
688	+	* Returns a timeout that means "no waiting", i.e. not positive.
689	+	*/
690	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
691	+
692	+	/**
693	+	* Returns a random non-null TimeUnit.
694	+	*/
695	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
696	+
697	+	/**
698	+	* Returns a random boolean; a "coin flip".
699	+	*/
700	+	static boolean randomBoolean() {
701	+	return ThreadLocalRandom.current().nextBoolean();
702	+	}
703	+
704	+	/**
705	+	* Returns a random element from given choices.
706	+	*/
707	+	<T> T chooseRandomly(T... choices) {
708	+	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
709	+	}
710	+
711	+	/**
712		* Returns the shortest timed delay. This can be scaled up for
713		* slow machines using the jsr166.delay.factor system property,
714		* or via jtreg's -timeoutFactor: flag.
#	Line 613 | Line 726 | public class JSR166TestCase extends Test
726		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
727		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
728		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
729	+	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
730		}
731
732	+	private static final long TIMEOUT_DELAY_MS
733	+	= (long) (12.0 * Math.cbrt(delayFactor));
734	+
735		/**
736	<	* Returns a timeout in milliseconds to be used in tests that
737	<	* verify that operations block or time out.
736	>	* Returns a timeout in milliseconds to be used in tests that verify
737	>	* that operations block or time out.  We want this to be longer
738	>	* than the OS scheduling quantum, but not too long, so don't scale
739	>	* linearly with delayFactor; we use "crazy" cube root instead.
740		*/
741	<	long timeoutMillis() {
742	<	return SHORT_DELAY_MS / 4;
741	>	static long timeoutMillis() {
742	>	return TIMEOUT_DELAY_MS;
743		}
744
745		/**
#	Line 636 | Line 755 | public class JSR166TestCase extends Test
755		* The first exception encountered if any threadAssertXXX method fails.
756		*/
757		private final AtomicReference<Throwable> threadFailure
758	<	= new AtomicReference<Throwable>(null);
758	>	= new AtomicReference<>(null);
759
760		/**
761		* Records an exception so that it can be rethrown later in the test
#	Line 646 | Line 765 | public class JSR166TestCase extends Test
765		*/
766		public void threadRecordFailure(Throwable t) {
767		System.err.println(t);
768	<	dumpTestThreads();
769	<	threadFailure.compareAndSet(null, t);
768	>	if (threadFailure.compareAndSet(null, t))
769	>	dumpTestThreads();
770		}
771
772		public void setUp() {
#	Line 658 | Line 777 | public class JSR166TestCase extends Test
777		String msg = toString() + ": " + String.format(format, args);
778		System.err.println(msg);
779		dumpTestThreads();
780	<	throw new AssertionFailedError(msg);
780	>	throw new AssertionError(msg);
781		}
782
783		/**
#	Line 679 | Line 798 | public class JSR166TestCase extends Test
798		throw (RuntimeException) t;
799		else if (t instanceof Exception)
800		throw (Exception) t;
801	<	else {
802	<	AssertionFailedError afe =
684	<	new AssertionFailedError(t.toString());
685	<	afe.initCause(t);
686	<	throw afe;
687	<	}
801	>	else
802	>	throw new AssertionError(t.toString(), t);
803		}
804
805		if (Thread.interrupted())
#	Line 718 | Line 833 | public class JSR166TestCase extends Test
833
834		/**
835		* Just like fail(reason), but additionally recording (using
836	<	* threadRecordFailure) any AssertionFailedError thrown, so that
837	<	* the current testcase will fail.
836	>	* threadRecordFailure) any AssertionError thrown, so that the
837	>	* current testcase will fail.
838		*/
839		public void threadFail(String reason) {
840		try {
841		fail(reason);
842	<	} catch (AssertionFailedError t) {
843	<	threadRecordFailure(t);
844	<	throw t;
842	>	} catch (AssertionError fail) {
843	>	threadRecordFailure(fail);
844	>	throw fail;
845		}
846		}
847
848		/**
849		* Just like assertTrue(b), but additionally recording (using
850	<	* threadRecordFailure) any AssertionFailedError thrown, so that
851	<	* the current testcase will fail.
850	>	* threadRecordFailure) any AssertionError thrown, so that the
851	>	* current testcase will fail.
852		*/
853		public void threadAssertTrue(boolean b) {
854		try {
855		assertTrue(b);
856	<	} catch (AssertionFailedError t) {
857	<	threadRecordFailure(t);
858	<	throw t;
856	>	} catch (AssertionError fail) {
857	>	threadRecordFailure(fail);
858	>	throw fail;
859		}
860		}
861
862		/**
863		* Just like assertFalse(b), but additionally recording (using
864	<	* threadRecordFailure) any AssertionFailedError thrown, so that
865	<	* the current testcase will fail.
864	>	* threadRecordFailure) any AssertionError thrown, so that the
865	>	* current testcase will fail.
866		*/
867		public void threadAssertFalse(boolean b) {
868		try {
869		assertFalse(b);
870	<	} catch (AssertionFailedError t) {
871	<	threadRecordFailure(t);
872	<	throw t;
870	>	} catch (AssertionError fail) {
871	>	threadRecordFailure(fail);
872	>	throw fail;
873		}
874		}
875
876		/**
877		* Just like assertNull(x), but additionally recording (using
878	<	* threadRecordFailure) any AssertionFailedError thrown, so that
879	<	* the current testcase will fail.
878	>	* threadRecordFailure) any AssertionError thrown, so that the
879	>	* current testcase will fail.
880		*/
881		public void threadAssertNull(Object x) {
882		try {
883		assertNull(x);
884	<	} catch (AssertionFailedError t) {
885	<	threadRecordFailure(t);
886	<	throw t;
884	>	} catch (AssertionError fail) {
885	>	threadRecordFailure(fail);
886	>	throw fail;
887		}
888		}
889
890		/**
891		* Just like assertEquals(x, y), but additionally recording (using
892	<	* threadRecordFailure) any AssertionFailedError thrown, so that
893	<	* the current testcase will fail.
892	>	* threadRecordFailure) any AssertionError thrown, so that the
893	>	* current testcase will fail.
894		*/
895		public void threadAssertEquals(long x, long y) {
896		try {
897		assertEquals(x, y);
898	<	} catch (AssertionFailedError t) {
899	<	threadRecordFailure(t);
900	<	throw t;
898	>	} catch (AssertionError fail) {
899	>	threadRecordFailure(fail);
900	>	throw fail;
901		}
902		}
903
904		/**
905		* Just like assertEquals(x, y), but additionally recording (using
906	<	* threadRecordFailure) any AssertionFailedError thrown, so that
907	<	* the current testcase will fail.
906	>	* threadRecordFailure) any AssertionError thrown, so that the
907	>	* current testcase will fail.
908		*/
909		public void threadAssertEquals(Object x, Object y) {
910		try {
911		assertEquals(x, y);
912	<	} catch (AssertionFailedError fail) {
912	>	} catch (AssertionError fail) {
913		threadRecordFailure(fail);
914		throw fail;
915		} catch (Throwable fail) {
#	Line 804 | Line 919 | public class JSR166TestCase extends Test
919
920		/**
921		* Just like assertSame(x, y), but additionally recording (using
922	<	* threadRecordFailure) any AssertionFailedError thrown, so that
923	<	* the current testcase will fail.
922	>	* threadRecordFailure) any AssertionError thrown, so that the
923	>	* current testcase will fail.
924		*/
925		public void threadAssertSame(Object x, Object y) {
926		try {
927		assertSame(x, y);
928	<	} catch (AssertionFailedError fail) {
928	>	} catch (AssertionError fail) {
929		threadRecordFailure(fail);
930		throw fail;
931		}
#	Line 832 | Line 947 | public class JSR166TestCase extends Test
947
948		/**
949		* Records the given exception using {@link #threadRecordFailure},
950	<	* then rethrows the exception, wrapping it in an
951	<	* AssertionFailedError if necessary.
950	>	* then rethrows the exception, wrapping it in an AssertionError
951	>	* if necessary.
952		*/
953		public void threadUnexpectedException(Throwable t) {
954		threadRecordFailure(t);
#	Line 842 | Line 957 | public class JSR166TestCase extends Test
957		throw (RuntimeException) t;
958		else if (t instanceof Error)
959		throw (Error) t;
960	<	else {
961	<	AssertionFailedError afe =
847	<	new AssertionFailedError("unexpected exception: " + t);
848	<	afe.initCause(t);
849	<	throw afe;
850	<	}
960	>	else
961	>	throw new AssertionError("unexpected exception: " + t, t);
962		}
963
964		/**
#	Line 946 | Line 1057 | public class JSR166TestCase extends Test
1057		}
1058		}
1059
1060	<	/** Like Runnable, but with the freedom to throw anything */
1060	>	/**
1061	>	* Like Runnable, but with the freedom to throw anything.
1062	>	* junit folks had the same idea:
1063	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1064	>	*/
1065		interface Action { public void run() throws Throwable; }
1066
1067		/**
#	Line 972 | Line 1087 | public class JSR166TestCase extends Test
1087		}
1088		}
1089
1090	+	/** Returns true if thread info might be useful in a thread dump. */
1091	+	static boolean threadOfInterest(ThreadInfo info) {
1092	+	final String name = info.getThreadName();
1093	+	String lockName;
1094	+	if (name == null)
1095	+	return true;
1096	+	if (name.equals("Signal Dispatcher")
1097	+	|| name.equals("WedgedTestDetector"))
1098	+	return false;
1099	+	if (name.equals("Reference Handler")) {
1100	+	// Reference Handler stacktrace changed in JDK-8156500
1101	+	StackTraceElement[] stackTrace; String methodName;
1102	+	if ((stackTrace = info.getStackTrace()) != null
1103	+	&& stackTrace.length > 0
1104	+	&& (methodName = stackTrace[0].getMethodName()) != null
1105	+	&& methodName.equals("waitForReferencePendingList"))
1106	+	return false;
1107	+	// jdk8 Reference Handler stacktrace
1108	+	if ((lockName = info.getLockName()) != null
1109	+	&& lockName.startsWith("java.lang.ref"))
1110	+	return false;
1111	+	}
1112	+	if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1113	+	&& (lockName = info.getLockName()) != null
1114	+	&& lockName.startsWith("java.lang.ref"))
1115	+	return false;
1116	+	if (name.startsWith("ForkJoinPool.commonPool-worker")
1117	+	&& (lockName = info.getLockName()) != null
1118	+	&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1119	+	return false;
1120	+	return true;
1121	+	}
1122	+
1123		/**
1124		* A debugging tool to print stack traces of most threads, as jstack does.
1125		* Uninteresting threads are filtered out.
1126		*/
1127		static void dumpTestThreads() {
1128	<	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1129	<	System.err.println("------ stacktrace dump start ------");
1130	<	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1131	<	String name = info.getThreadName();
1132	<	if ("Signal Dispatcher".equals(name))
1133	<	continue;
1134	<	if ("Reference Handler".equals(name)
987	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
988	<	continue;
989	<	if ("Finalizer".equals(name)
990	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
991	<	continue;
992	<	if ("checkForWedgedTest".equals(name))
993	<	continue;
994	<	System.err.print(info);
1128	>	SecurityManager sm = System.getSecurityManager();
1129	>	if (sm != null) {
1130	>	try {
1131	>	System.setSecurityManager(null);
1132	>	} catch (SecurityException giveUp) {
1133	>	return;
1134	>	}
1135		}
1136	+
1137	+	System.err.println("------ stacktrace dump start ------");
1138	+	for (ThreadInfo info : THREAD_MXBEAN.dumpAllThreads(true, true))
1139	+	if (threadOfInterest(info))
1140	+	System.err.print(info);
1141		System.err.println("------ stacktrace dump end ------");
997	–	}
1142
1143	<	/**
1000	<	* Checks that thread does not terminate within the default
1001	<	* millisecond delay of {@code timeoutMillis()}.
1002	<	*/
1003	<	void assertThreadStaysAlive(Thread thread) {
1004	<	assertThreadStaysAlive(thread, timeoutMillis());
1143	>	if (sm != null) System.setSecurityManager(sm);
1144		}
1145
1146		/**
1147	<	* Checks that thread does not terminate within the given millisecond delay.
1147	>	* Checks that thread eventually enters the expected blocked thread state.
1148		*/
1149	<	void assertThreadStaysAlive(Thread thread, long millis) {
1150	<	try {
1151	<	// No need to optimize the failing case via Thread.join.
1152	<	delay(millis);
1153	<	assertTrue(thread.isAlive());
1154	<	} catch (InterruptedException fail) {
1155	<	threadFail("Unexpected InterruptedException");
1149	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1150	>	// always sleep at least 1 ms, with high probability avoiding
1151	>	// transitory states
1152	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1153	>	try { delay(1); }
1154	>	catch (InterruptedException fail) {
1155	>	throw new AssertionError("Unexpected InterruptedException", fail);
1156	>	}
1157	>	Thread.State s = thread.getState();
1158	>	if (s == expected)
1159	>	return;
1160	>	else if (s == Thread.State.TERMINATED)
1161	>	fail("Unexpected thread termination");
1162		}
1163	+	fail("timed out waiting for thread to enter thread state " + expected);
1164		}
1165
1166		/**
1167	<	* Checks that the threads do not terminate within the default
1022	<	* millisecond delay of {@code timeoutMillis()}.
1167	>	* Returns the thread's blocker's class name, if any, else null.
1168		*/
1169	<	void assertThreadsStayAlive(Thread... threads) {
1170	<	assertThreadsStayAlive(timeoutMillis(), threads);
1171	<	}
1172	<
1173	<	/**
1174	<	* Checks that the threads do not terminate within the given millisecond delay.
1030	<	*/
1031	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1032	<	try {
1033	<	// No need to optimize the failing case via Thread.join.
1034	<	delay(millis);
1035	<	for (Thread thread : threads)
1036	<	assertTrue(thread.isAlive());
1037	<	} catch (InterruptedException fail) {
1038	<	threadFail("Unexpected InterruptedException");
1039	<	}
1169	>	String blockerClassName(Thread thread) {
1170	>	ThreadInfo threadInfo; LockInfo lockInfo;
1171	>	if ((threadInfo = THREAD_MXBEAN.getThreadInfo(thread.getId(), 0)) != null
1172	>	&& (lockInfo = threadInfo.getLockInfo()) != null)
1173	>	return lockInfo.getClassName();
1174	>	return null;
1175		}
1176
1177		/**
#	Line 1077 | Line 1212 | public class JSR166TestCase extends Test
1212		}
1213
1214		/**
1215	+	* The maximum number of consecutive spurious wakeups we should
1216	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1217	+	*/
1218	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1219	+
1220	+	/**
1221		* The number of elements to place in collections, arrays, etc.
1222		*/
1223		public static final int SIZE = 20;
#	Line 1180 | Line 1321 | public class JSR166TestCase extends Test
1321		}
1322		public void refresh() {}
1323		public String toString() {
1324	<	List<Permission> ps = new ArrayList<Permission>();
1324	>	List<Permission> ps = new ArrayList<>();
1325		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1326		ps.add(e.nextElement());
1327		return "AdjustablePolicy with permissions " + ps;
#	Line 1208 | Line 1349 | public class JSR166TestCase extends Test
1349
1350		/**
1351		* Sleeps until the given time has elapsed.
1352	<	* Throws AssertionFailedError if interrupted.
1352	>	* Throws AssertionError if interrupted.
1353		*/
1354	<	void sleep(long millis) {
1354	>	static void sleep(long millis) {
1355		try {
1356		delay(millis);
1357		} catch (InterruptedException fail) {
1358	<	AssertionFailedError afe =
1218	<	new AssertionFailedError("Unexpected InterruptedException");
1219	<	afe.initCause(fail);
1220	<	throw afe;
1358	>	throw new AssertionError("Unexpected InterruptedException", fail);
1359		}
1360		}
1361
1362		/**
1363		* Spin-waits up to the specified number of milliseconds for the given
1364		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1365	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1366		*/
1367	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1368	<	long startTime = System.nanoTime();
1369	<	for (;;) {
1370	<	Thread.State s = thread.getState();
1371	<	if (s == Thread.State.BLOCKED ||
1372	<	s == Thread.State.WAITING ||
1373	<	s == Thread.State.TIMED_WAITING)
1374	<	return;
1375	<	else if (s == Thread.State.TERMINATED)
1367	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1368	>	Callable<Boolean> waitingForGodot) {
1369	>	for (long startTime = 0L;;) {
1370	>	switch (thread.getState()) {
1371	>	default: break;
1372	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1373	>	try {
1374	>	if (waitingForGodot == null || waitingForGodot.call())
1375	>	return;
1376	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1377	>	break;
1378	>	case TERMINATED:
1379		fail("Unexpected thread termination");
1380	+	}
1381	+
1382	+	if (startTime == 0L)
1383	+	startTime = System.nanoTime();
1384		else if (millisElapsedSince(startTime) > timeoutMillis) {
1385	<	threadAssertTrue(thread.isAlive());
1386	<	return;
1385	>	assertTrue(thread.isAlive());
1386	>	if (waitingForGodot == null
1387	>	|| thread.getState() == Thread.State.RUNNABLE)
1388	>	fail("timed out waiting for thread to enter wait state");
1389	>	else
1390	>	fail("timed out waiting for condition, thread state="
1391	>	+ thread.getState());
1392		}
1393		Thread.yield();
1394		}
1395		}
1396
1397		/**
1398	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1399	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1398	>	* Spin-waits up to the specified number of milliseconds for the given
1399	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1400	>	*/
1401	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1402	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1403	>	}
1404	>
1405	>	/**
1406	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1407	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1408		*/
1409		void waitForThreadToEnterWaitState(Thread thread) {
1410	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1410	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1411	>	}
1412	>
1413	>	/**
1414	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1415	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1416	>	* and additionally satisfy the given condition.
1417	>	*/
1418	>	void waitForThreadToEnterWaitState(Thread thread,
1419	>	Callable<Boolean> waitingForGodot) {
1420	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1421	>	}
1422	>
1423	>	/**
1424	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1425	>	* be interrupted.  Clears the interrupt status before returning.
1426	>	*/
1427	>	void awaitInterrupted() {
1428	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1429	>	if (startTime == 0L)
1430	>	startTime = System.nanoTime();
1431	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1432	>	fail("timed out waiting for thread interrupt");
1433	>	Thread.yield();
1434	>	}
1435		}
1436
1437		/**
#	Line 1260 | Line 1443 | public class JSR166TestCase extends Test
1443		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1444		}
1445
1263	–	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1264	–	//         long startTime = System.nanoTime();
1265	–	//         try {
1266	–	//             r.run();
1267	–	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1268	–	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1269	–	//             throw new AssertionFailedError("did not return promptly");
1270	–	//     }
1271	–
1272	–	//     void assertTerminatesPromptly(Runnable r) {
1273	–	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1274	–	//     }
1275	–
1446		/**
1447		* Checks that timed f.get() returns the expected value, and does not
1448		* wait for the timeout to elapse before returning.
1449		*/
1450		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1451		long startTime = System.nanoTime();
1452	+	T actual = null;
1453		try {
1454	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1454	>	actual = f.get(timeoutMillis, MILLISECONDS);
1455		} catch (Throwable fail) { threadUnexpectedException(fail); }
1456	+	assertEquals(expectedValue, actual);
1457		if (millisElapsedSince(startTime) > timeoutMillis/2)
1458	<	throw new AssertionFailedError("timed get did not return promptly");
1458	>	throw new AssertionError("timed get did not return promptly");
1459		}
1460
1461		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1301 | Line 1473 | public class JSR166TestCase extends Test
1473		}
1474
1475		/**
1476	+	* Returns a new started daemon Thread running the given action,
1477	+	* wrapped in a CheckedRunnable.
1478	+	*/
1479	+	Thread newStartedThread(Action action) {
1480	+	return newStartedThread(checkedRunnable(action));
1481	+	}
1482	+
1483	+	/**
1484		* Waits for the specified time (in milliseconds) for the thread
1485		* to terminate (using {@link Thread#join(long)}), else interrupts
1486		* the thread (in the hope that it may terminate later) and fails.
1487		*/
1488	<	void awaitTermination(Thread t, long timeoutMillis) {
1488	>	void awaitTermination(Thread thread, long timeoutMillis) {
1489		try {
1490	<	t.join(timeoutMillis);
1490	>	thread.join(timeoutMillis);
1491		} catch (InterruptedException fail) {
1492		threadUnexpectedException(fail);
1493	<	} finally {
1494	<	if (t.getState() != Thread.State.TERMINATED) {
1495	<	t.interrupt();
1496	<	threadFail("timed out waiting for thread to terminate");
1493	>	}
1494	>	if (thread.getState() != Thread.State.TERMINATED) {
1495	>	String detail = String.format(
1496	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1497	>	thread, thread.getState());
1498	>	try {
1499	>	threadFail(detail);
1500	>	} finally {
1501	>	// Interrupt thread __after__ having reported its stack trace
1502	>	thread.interrupt();
1503		}
1504		}
1505		}
#	Line 1341 | Line 1527 | public class JSR166TestCase extends Test
1527		}
1528		}
1529
1530	<	public abstract class RunnableShouldThrow implements Runnable {
1531	<	protected abstract void realRun() throws Throwable;
1532	<
1533	<	final Class<?> exceptionClass;
1534	<
1349	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1350	<	this.exceptionClass = exceptionClass;
1351	<	}
1352	<
1353	<	public final void run() {
1354	<	try {
1355	<	realRun();
1356	<	threadShouldThrow(exceptionClass.getSimpleName());
1357	<	} catch (Throwable t) {
1358	<	if (! exceptionClass.isInstance(t))
1359	<	threadUnexpectedException(t);
1360	<	}
1361	<	}
1530	>	Runnable checkedRunnable(Action action) {
1531	>	return new CheckedRunnable() {
1532	>	public void realRun() throws Throwable {
1533	>	action.run();
1534	>	}};
1535		}
1536
1537		public abstract class ThreadShouldThrow extends Thread {
#	Line 1373 | Line 1546 | public class JSR166TestCase extends Test
1546		public final void run() {
1547		try {
1548		realRun();
1376	–	threadShouldThrow(exceptionClass.getSimpleName());
1549		} catch (Throwable t) {
1550		if (! exceptionClass.isInstance(t))
1551		threadUnexpectedException(t);
1552	+	return;
1553		}
1554	+	threadShouldThrow(exceptionClass.getSimpleName());
1555		}
1556		}
1557
#	Line 1387 | Line 1561 | public class JSR166TestCase extends Test
1561		public final void run() {
1562		try {
1563		realRun();
1390	–	threadShouldThrow("InterruptedException");
1564		} catch (InterruptedException success) {
1565		threadAssertFalse(Thread.interrupted());
1566	+	return;
1567		} catch (Throwable fail) {
1568		threadUnexpectedException(fail);
1569		}
1570	+	threadShouldThrow("InterruptedException");
1571		}
1572		}
1573
#	Line 1404 | Line 1579 | public class JSR166TestCase extends Test
1579		return realCall();
1580		} catch (Throwable fail) {
1581		threadUnexpectedException(fail);
1407	–	return null;
1408	–	}
1409	–	}
1410	–	}
1411	–
1412	–	public abstract class CheckedInterruptedCallable<T>
1413	–	implements Callable<T> {
1414	–	protected abstract T realCall() throws Throwable;
1415	–
1416	–	public final T call() {
1417	–	try {
1418	–	T result = realCall();
1419	–	threadShouldThrow("InterruptedException");
1420	–	return result;
1421	–	} catch (InterruptedException success) {
1422	–	threadAssertFalse(Thread.interrupted());
1423	–	} catch (Throwable fail) {
1424	–	threadUnexpectedException(fail);
1582		}
1583	<	return null;
1583	>	throw new AssertionError("unreached");
1584		}
1585		}
1586
#	Line 1480 | Line 1637 | public class JSR166TestCase extends Test
1637		}
1638
1639		public void await(CountDownLatch latch, long timeoutMillis) {
1640	+	boolean timedOut = false;
1641		try {
1642	<	if (!latch.await(timeoutMillis, MILLISECONDS))
1485	<	fail("timed out waiting for CountDownLatch for "
1486	<	+ (timeoutMillis/1000) + " sec");
1642	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1643		} catch (Throwable fail) {
1644		threadUnexpectedException(fail);
1645		}
1646	+	if (timedOut)
1647	+	fail("timed out waiting for CountDownLatch for "
1648	+	+ (timeoutMillis/1000) + " sec");
1649		}
1650
1651		public void await(CountDownLatch latch) {
#	Line 1494 | Line 1653 | public class JSR166TestCase extends Test
1653		}
1654
1655		public void await(Semaphore semaphore) {
1656	+	boolean timedOut = false;
1657		try {
1658	<	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1659	<	fail("timed out waiting for Semaphore for "
1660	<	+ (LONG_DELAY_MS/1000) + " sec");
1658	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1659	>	} catch (Throwable fail) {
1660	>	threadUnexpectedException(fail);
1661	>	}
1662	>	if (timedOut)
1663	>	fail("timed out waiting for Semaphore for "
1664	>	+ (LONG_DELAY_MS/1000) + " sec");
1665	>	}
1666	>
1667	>	public void await(CyclicBarrier barrier) {
1668	>	try {
1669	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1670		} catch (Throwable fail) {
1671		threadUnexpectedException(fail);
1672		}
#	Line 1517 | Line 1686 | public class JSR166TestCase extends Test
1686		//         long startTime = System.nanoTime();
1687		//         while (!flag.get()) {
1688		//             if (millisElapsedSince(startTime) > timeoutMillis)
1689	<	//                 throw new AssertionFailedError("timed out");
1689	>	//                 throw new AssertionError("timed out");
1690		//             Thread.yield();
1691		//         }
1692		//     }
#	Line 1526 | Line 1695 | public class JSR166TestCase extends Test
1695		public String call() { throw new NullPointerException(); }
1696		}
1697
1529	–	public static class CallableOne implements Callable<Integer> {
1530	–	public Integer call() { return one; }
1531	–	}
1532	–
1533	–	public class ShortRunnable extends CheckedRunnable {
1534	–	protected void realRun() throws Throwable {
1535	–	delay(SHORT_DELAY_MS);
1536	–	}
1537	–	}
1538	–
1539	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1540	–	protected void realRun() throws InterruptedException {
1541	–	delay(SHORT_DELAY_MS);
1542	–	}
1543	–	}
1544	–
1545	–	public class SmallRunnable extends CheckedRunnable {
1546	–	protected void realRun() throws Throwable {
1547	–	delay(SMALL_DELAY_MS);
1548	–	}
1549	–	}
1550	–
1551	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1552	–	protected void realRun() {
1553	–	try {
1554	–	delay(SMALL_DELAY_MS);
1555	–	} catch (InterruptedException ok) {}
1556	–	}
1557	–	}
1558	–
1559	–	public class SmallCallable extends CheckedCallable {
1560	–	protected Object realCall() throws InterruptedException {
1561	–	delay(SMALL_DELAY_MS);
1562	–	return Boolean.TRUE;
1563	–	}
1564	–	}
1565	–
1566	–	public class MediumRunnable extends CheckedRunnable {
1567	–	protected void realRun() throws Throwable {
1568	–	delay(MEDIUM_DELAY_MS);
1569	–	}
1570	–	}
1571	–
1572	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1573	–	protected void realRun() throws InterruptedException {
1574	–	delay(MEDIUM_DELAY_MS);
1575	–	}
1576	–	}
1577	–
1698		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1699		return new CheckedRunnable() {
1700		protected void realRun() {
#	Line 1584 | Line 1704 | public class JSR166TestCase extends Test
1704		}};
1705		}
1706
1587	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1588	–	protected void realRun() {
1589	–	try {
1590	–	delay(MEDIUM_DELAY_MS);
1591	–	} catch (InterruptedException ok) {}
1592	–	}
1593	–	}
1594	–
1595	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1596	–	protected void realRun() {
1597	–	try {
1598	–	delay(LONG_DELAY_MS);
1599	–	} catch (InterruptedException ok) {}
1600	–	}
1601	–	}
1602	–
1707		/**
1708		* For use as ThreadFactory in constructors
1709		*/
#	Line 1613 | Line 1717 | public class JSR166TestCase extends Test
1717		boolean isDone();
1718		}
1719
1616	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1617	–	return new TrackedRunnable() {
1618	–	private volatile boolean done = false;
1619	–	public boolean isDone() { return done; }
1620	–	public void run() {
1621	–	try {
1622	–	delay(timeoutMillis);
1623	–	done = true;
1624	–	} catch (InterruptedException ok) {}
1625	–	}
1626	–	};
1627	–	}
1628	–
1629	–	public static class TrackedShortRunnable implements Runnable {
1630	–	public volatile boolean done = false;
1631	–	public void run() {
1632	–	try {
1633	–	delay(SHORT_DELAY_MS);
1634	–	done = true;
1635	–	} catch (InterruptedException ok) {}
1636	–	}
1637	–	}
1638	–
1639	–	public static class TrackedSmallRunnable implements Runnable {
1640	–	public volatile boolean done = false;
1641	–	public void run() {
1642	–	try {
1643	–	delay(SMALL_DELAY_MS);
1644	–	done = true;
1645	–	} catch (InterruptedException ok) {}
1646	–	}
1647	–	}
1648	–
1649	–	public static class TrackedMediumRunnable implements Runnable {
1650	–	public volatile boolean done = false;
1651	–	public void run() {
1652	–	try {
1653	–	delay(MEDIUM_DELAY_MS);
1654	–	done = true;
1655	–	} catch (InterruptedException ok) {}
1656	–	}
1657	–	}
1658	–
1659	–	public static class TrackedLongRunnable implements Runnable {
1660	–	public volatile boolean done = false;
1661	–	public void run() {
1662	–	try {
1663	–	delay(LONG_DELAY_MS);
1664	–	done = true;
1665	–	} catch (InterruptedException ok) {}
1666	–	}
1667	–	}
1668	–
1720		public static class TrackedNoOpRunnable implements Runnable {
1721		public volatile boolean done = false;
1722		public void run() {
#	Line 1673 | Line 1724 | public class JSR166TestCase extends Test
1724		}
1725		}
1726
1676	–	public static class TrackedCallable implements Callable {
1677	–	public volatile boolean done = false;
1678	–	public Object call() {
1679	–	try {
1680	–	delay(SMALL_DELAY_MS);
1681	–	done = true;
1682	–	} catch (InterruptedException ok) {}
1683	–	return Boolean.TRUE;
1684	–	}
1685	–	}
1686	–
1727		/**
1728		* Analog of CheckedRunnable for RecursiveAction
1729		*/
#	Line 1710 | Line 1750 | public class JSR166TestCase extends Test
1750		return realCompute();
1751		} catch (Throwable fail) {
1752		threadUnexpectedException(fail);
1713	–	return null;
1753		}
1754	+	throw new AssertionError("unreached");
1755		}
1756		}
1757
#	Line 1725 | Line 1765 | public class JSR166TestCase extends Test
1765
1766		/**
1767		* A CyclicBarrier that uses timed await and fails with
1768	<	* AssertionFailedErrors instead of throwing checked exceptions.
1768	>	* AssertionErrors instead of throwing checked exceptions.
1769		*/
1770	<	public class CheckedBarrier extends CyclicBarrier {
1770	>	public static class CheckedBarrier extends CyclicBarrier {
1771		public CheckedBarrier(int parties) { super(parties); }
1772
1773		public int await() {
1774		try {
1775		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1776		} catch (TimeoutException timedOut) {
1777	<	throw new AssertionFailedError("timed out");
1777	>	throw new AssertionError("timed out");
1778		} catch (Exception fail) {
1779	<	AssertionFailedError afe =
1740	<	new AssertionFailedError("Unexpected exception: " + fail);
1741	<	afe.initCause(fail);
1742	<	throw afe;
1779	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1780		}
1781		}
1782		}
#	Line 1750 | Line 1787 | public class JSR166TestCase extends Test
1787		assertEquals(0, q.size());
1788		assertNull(q.peek());
1789		assertNull(q.poll());
1790	<	assertNull(q.poll(0, MILLISECONDS));
1790	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1791		assertEquals(q.toString(), "[]");
1792		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1793		assertFalse(q.iterator().hasNext());
#	Line 1791 | Line 1828 | public class JSR166TestCase extends Test
1828		}
1829		}
1830
1831	+	void assertImmutable(Object o) {
1832	+	if (o instanceof Collection) {
1833	+	assertThrows(
1834	+	UnsupportedOperationException.class,
1835	+	() -> ((Collection) o).add(null));
1836	+	}
1837	+	}
1838	+
1839		@SuppressWarnings("unchecked")
1840		<T> T serialClone(T o) {
1841	+	T clone = null;
1842		try {
1843		ObjectInputStream ois = new ObjectInputStream
1844		(new ByteArrayInputStream(serialBytes(o)));
1845	<	T clone = (T) ois.readObject();
1800	<	assertSame(o.getClass(), clone.getClass());
1801	<	return clone;
1845	>	clone = (T) ois.readObject();
1846		} catch (Throwable fail) {
1847		threadUnexpectedException(fail);
1848	+	}
1849	+	if (o == clone) assertImmutable(o);
1850	+	else assertSame(o.getClass(), clone.getClass());
1851	+	return clone;
1852	+	}
1853	+
1854	+	/**
1855	+	* A version of serialClone that leaves error handling (for
1856	+	* e.g. NotSerializableException) up to the caller.
1857	+	*/
1858	+	@SuppressWarnings("unchecked")
1859	+	<T> T serialClonePossiblyFailing(T o)
1860	+	throws ReflectiveOperationException, java.io.IOException {
1861	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1862	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1863	+	oos.writeObject(o);
1864	+	oos.flush();
1865	+	oos.close();
1866	+	ObjectInputStream ois = new ObjectInputStream
1867	+	(new ByteArrayInputStream(bos.toByteArray()));
1868	+	T clone = (T) ois.readObject();
1869	+	if (o == clone) assertImmutable(o);
1870	+	else assertSame(o.getClass(), clone.getClass());
1871	+	return clone;
1872	+	}
1873	+
1874	+	/**
1875	+	* If o implements Cloneable and has a public clone method,
1876	+	* returns a clone of o, else null.
1877	+	*/
1878	+	@SuppressWarnings("unchecked")
1879	+	<T> T cloneableClone(T o) {
1880	+	if (!(o instanceof Cloneable)) return null;
1881	+	final T clone;
1882	+	try {
1883	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1884	+	} catch (NoSuchMethodException ok) {
1885		return null;
1886	+	} catch (ReflectiveOperationException unexpected) {
1887	+	throw new Error(unexpected);
1888		}
1889	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1890	+	assertSame(o.getClass(), clone.getClass());
1891	+	return clone;
1892		}
1893
1894		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1895	<	Runnable... throwingActions) {
1896	<	for (Runnable throwingAction : throwingActions) {
1895	>	Action... throwingActions) {
1896	>	for (Action throwingAction : throwingActions) {
1897		boolean threw = false;
1898		try { throwingAction.run(); }
1899		catch (Throwable t) {
1900		threw = true;
1901	<	if (!expectedExceptionClass.isInstance(t)) {
1902	<	AssertionFailedError afe =
1903	<	new AssertionFailedError
1904	<	("Expected " + expectedExceptionClass.getName() +
1905	<	", got " + t.getClass().getName());
1820	<	afe.initCause(t);
1821	<	threadUnexpectedException(afe);
1822	<	}
1901	>	if (!expectedExceptionClass.isInstance(t))
1902	>	throw new AssertionError(
1903	>	"Expected " + expectedExceptionClass.getName() +
1904	>	", got " + t.getClass().getName(),
1905	>	t);
1906		}
1907		if (!threw)
1908		shouldThrow(expectedExceptionClass.getName());
#	Line 1841 | Line 1924 | public class JSR166TestCase extends Test
1924		public Runnable runnableThrowing(final RuntimeException ex) {
1925		return new Runnable() { public void run() { throw ex; }};
1926		}
1927	+
1928	+	/** A reusable thread pool to be shared by tests. */
1929	+	static final ExecutorService cachedThreadPool =
1930	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1931	+	1000L, MILLISECONDS,
1932	+	new SynchronousQueue<Runnable>());
1933	+
1934	+	static <T> void shuffle(T[] array) {
1935	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1936	+	}
1937	+
1938	+	/**
1939	+	* Returns the same String as would be returned by {@link
1940	+	* Object#toString}, whether or not the given object's class
1941	+	* overrides toString().
1942	+	*
1943	+	* @see System#identityHashCode
1944	+	*/
1945	+	static String identityString(Object x) {
1946	+	return x.getClass().getName()
1947	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1948	+	}
1949	+
1950	+	// --- Shared assertions for Executor tests ---
1951	+
1952	+	/**
1953	+	* Returns maximum number of tasks that can be submitted to given
1954	+	* pool (with bounded queue) before saturation (when submission
1955	+	* throws RejectedExecutionException).
1956	+	*/
1957	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1958	+	BlockingQueue<Runnable> q = pool.getQueue();
1959	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1960	+	}
1961	+
1962	+	@SuppressWarnings("FutureReturnValueIgnored")
1963	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1964	+	try {
1965	+	e.execute((Runnable) null);
1966	+	shouldThrow();
1967	+	} catch (NullPointerException success) {}
1968	+
1969	+	if (! (e instanceof ExecutorService)) return;
1970	+	ExecutorService es = (ExecutorService) e;
1971	+	try {
1972	+	es.submit((Runnable) null);
1973	+	shouldThrow();
1974	+	} catch (NullPointerException success) {}
1975	+	try {
1976	+	es.submit((Runnable) null, Boolean.TRUE);
1977	+	shouldThrow();
1978	+	} catch (NullPointerException success) {}
1979	+	try {
1980	+	es.submit((Callable) null);
1981	+	shouldThrow();
1982	+	} catch (NullPointerException success) {}
1983	+
1984	+	if (! (e instanceof ScheduledExecutorService)) return;
1985	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1986	+	try {
1987	+	ses.schedule((Runnable) null,
1988	+	randomTimeout(), randomTimeUnit());
1989	+	shouldThrow();
1990	+	} catch (NullPointerException success) {}
1991	+	try {
1992	+	ses.schedule((Callable) null,
1993	+	randomTimeout(), randomTimeUnit());
1994	+	shouldThrow();
1995	+	} catch (NullPointerException success) {}
1996	+	try {
1997	+	ses.scheduleAtFixedRate((Runnable) null,
1998	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1999	+	shouldThrow();
2000	+	} catch (NullPointerException success) {}
2001	+	try {
2002	+	ses.scheduleWithFixedDelay((Runnable) null,
2003	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2004	+	shouldThrow();
2005	+	} catch (NullPointerException success) {}
2006	+	}
2007	+
2008	+	void setRejectedExecutionHandler(
2009	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
2010	+	p.setRejectedExecutionHandler(handler);
2011	+	assertSame(handler, p.getRejectedExecutionHandler());
2012	+	}
2013	+
2014	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
2015	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
2016	+	final long savedTaskCount = p.getTaskCount();
2017	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
2018	+	final int savedQueueSize = p.getQueue().size();
2019	+	final boolean stock = (p.getClass().getClassLoader() == null);
2020	+
2021	+	Runnable r = () -> {};
2022	+	Callable<Boolean> c = () -> Boolean.TRUE;
2023	+
2024	+	class Recorder implements RejectedExecutionHandler {
2025	+	public volatile Runnable r = null;
2026	+	public volatile ThreadPoolExecutor p = null;
2027	+	public void reset() { r = null; p = null; }
2028	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2029	+	assertNull(this.r);
2030	+	assertNull(this.p);
2031	+	this.r = r;
2032	+	this.p = p;
2033	+	}
2034	+	}
2035	+
2036	+	// check custom handler is invoked exactly once per task
2037	+	Recorder recorder = new Recorder();
2038	+	setRejectedExecutionHandler(p, recorder);
2039	+	for (int i = 2; i--> 0; ) {
2040	+	recorder.reset();
2041	+	p.execute(r);
2042	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2043	+	assertSame(r, recorder.r);
2044	+	assertSame(p, recorder.p);
2045	+
2046	+	recorder.reset();
2047	+	assertFalse(p.submit(r).isDone());
2048	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2049	+	assertSame(p, recorder.p);
2050	+
2051	+	recorder.reset();
2052	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2053	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2054	+	assertSame(p, recorder.p);
2055	+
2056	+	recorder.reset();
2057	+	assertFalse(p.submit(c).isDone());
2058	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2059	+	assertSame(p, recorder.p);
2060	+
2061	+	if (p instanceof ScheduledExecutorService) {
2062	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2063	+	ScheduledFuture<?> future;
2064	+
2065	+	recorder.reset();
2066	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2067	+	assertFalse(future.isDone());
2068	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2069	+	assertSame(p, recorder.p);
2070	+
2071	+	recorder.reset();
2072	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2073	+	assertFalse(future.isDone());
2074	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2075	+	assertSame(p, recorder.p);
2076	+
2077	+	recorder.reset();
2078	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2079	+	assertFalse(future.isDone());
2080	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2081	+	assertSame(p, recorder.p);
2082	+
2083	+	recorder.reset();
2084	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2085	+	assertFalse(future.isDone());
2086	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2087	+	assertSame(p, recorder.p);
2088	+	}
2089	+	}
2090	+
2091	+	// Checking our custom handler above should be sufficient, but
2092	+	// we add some integration tests of standard handlers.
2093	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2094	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2095	+
2096	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2097	+	try {
2098	+	p.execute(setThread);
2099	+	shouldThrow();
2100	+	} catch (RejectedExecutionException success) {}
2101	+	assertNull(thread.get());
2102	+
2103	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2104	+	p.execute(setThread);
2105	+	assertNull(thread.get());
2106	+
2107	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2108	+	p.execute(setThread);
2109	+	if (p.isShutdown())
2110	+	assertNull(thread.get());
2111	+	else
2112	+	assertSame(Thread.currentThread(), thread.get());
2113	+
2114	+	setRejectedExecutionHandler(p, savedHandler);
2115	+
2116	+	// check that pool was not perturbed by handlers
2117	+	assertEquals(savedTaskCount, p.getTaskCount());
2118	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2119	+	assertEquals(savedQueueSize, p.getQueue().size());
2120	+	}
2121	+
2122	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2123	+	assertEquals(x, y);
2124	+	assertEquals(y, x);
2125	+	assertEquals(x.isEmpty(), y.isEmpty());
2126	+	assertEquals(x.size(), y.size());
2127	+	if (x instanceof List) {
2128	+	assertEquals(x.toString(), y.toString());
2129	+	}
2130	+	if (x instanceof List || x instanceof Set) {
2131	+	assertEquals(x.hashCode(), y.hashCode());
2132	+	}
2133	+	if (x instanceof List || x instanceof Deque) {
2134	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2135	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2136	+	y.toArray(new Object[0])));
2137	+	}
2138	+	}
2139	+
2140	+	/**
2141	+	* A weaker form of assertCollectionsEquals which does not insist
2142	+	* that the two collections satisfy Object#equals(Object), since
2143	+	* they may use identity semantics as Deques do.
2144	+	*/
2145	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2146	+	if (x instanceof List || x instanceof Set)
2147	+	assertCollectionsEquals(x, y);
2148	+	else {
2149	+	assertEquals(x.isEmpty(), y.isEmpty());
2150	+	assertEquals(x.size(), y.size());
2151	+	assertEquals(new HashSet(x), new HashSet(y));
2152	+	if (x instanceof Deque) {
2153	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2154	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2155	+	y.toArray(new Object[0])));
2156	+	}
2157	+	}
2158	+	}
2159		}

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