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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.185 by jsr166, Mon Feb 22 19:36:59 2016 UTC vs.
Revision 1.255 by jsr166, Sun Jul 28 18:09:25 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 28 | Line 54 | import java.lang.management.ThreadMXBean
54		import java.lang.reflect.Constructor;
55		import java.lang.reflect.Method;
56		import java.lang.reflect.Modifier;
31	–	import java.nio.file.Files;
32	–	import java.nio.file.Paths;
57		import java.security.CodeSource;
58		import java.security.Permission;
59		import java.security.PermissionCollection;
#	Line 39 | Line 63 | import java.security.ProtectionDomain;
63		import java.security.SecurityPermission;
64		import java.util.ArrayList;
65		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;
66	–	import java.util.regex.Matcher;
103		import java.util.regex.Pattern;
104
69	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107		import junit.framework.TestResult;
#	Line 82 | 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 184 | Line 227 | public class JSR166TestCase extends Test
227		private static final int suiteRuns =
228		Integer.getInteger("jsr166.suiteRuns", 1);
229
230	<	private static float systemPropertyValue(String name, float defaultValue) {
230	>	/**
231	>	* Returns the value of the system property, or NaN if not defined.
232	>	*/
233	>	private static float systemPropertyValue(String name) {
234		String floatString = System.getProperty(name);
235		if (floatString == null)
236	<	return defaultValue;
236	>	return Float.NaN;
237		try {
238		return Float.parseFloat(floatString);
239		} catch (NumberFormatException ex) {
#	Line 199 | Line 245 | public class JSR166TestCase extends Test
245
246		/**
247		* The scaling factor to apply to standard delays used in tests.
248	<	*/
249	<	private static final float delayFactor =
250	<	systemPropertyValue("jsr166.delay.factor", 1.0f);
251	<
252	<	/**
253	<	* The timeout factor as used in the jtreg test harness.
254	<	* See: http://openjdk.java.net/jtreg/tag-spec.html
255	<	*/
256	<	private static final float jtregTestTimeoutFactor
257	<	= systemPropertyValue("test.timeout.factor", 1.0f);
248	>	* May be initialized from any of:
249	>	* - the "jsr166.delay.factor" system property
250	>	* - the "test.timeout.factor" system property (as used by jtreg)
251	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
252	>	* - hard-coded fuzz factor when using a known slowpoke VM
253	>	*/
254	>	private static final float delayFactor = delayFactor();
255	>
256	>	private static float delayFactor() {
257	>	float x;
258	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
259	>	return x;
260	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
261	>	return x;
262	>	String prop = System.getProperty("java.vm.version");
263	>	if (prop != null && prop.matches(".*debug.*"))
264	>	return 4.0f; // How much slower is fastdebug than product?!
265	>	return 1.0f;
266	>	}
267
268		public JSR166TestCase() { super(); }
269		public JSR166TestCase(String name) { super(name); }
#	Line 233 | Line 288 | public class JSR166TestCase extends Test
288		// Avoid spurious reports with enormous runsPerTest.
289		// A single test case run should never take more than 1 second.
290		// But let's cap it at the high end too ...
291	<	final int timeoutMinutes =
292	<	Math.min(15, Math.max(runsPerTest / 60, 1));
291	>	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
292	>	* Math.max((int) delayFactor, 1);
293	>	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
294		for (TestCase lastTestCase = currentTestCase;;) {
295		try { MINUTES.sleep(timeoutMinutes); }
296		catch (InterruptedException unexpected) { break; }
#	Line 261 | Line 317 | public class JSR166TestCase extends Test
317
318		//     public static String cpuModel() {
319		//         try {
320	<	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
320	>	//             java.util.regex.Matcher matcher
321	>	//               = Pattern.compile("model name\\s*: (.*)")
322		//                 .matcher(new String(
323	<	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
323	>	//                     java.nio.file.Files.readAllBytes(
324	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
325		//             matcher.find();
326		//             return matcher.group(1);
327		//         } catch (Exception ex) { return null; }
#	Line 372 | 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",
376	<	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 398 | 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 430 | Line 487 | public class JSR166TestCase extends Test
487		AbstractQueuedLongSynchronizerTest.suite(),
488		ArrayBlockingQueueTest.suite(),
489		ArrayDequeTest.suite(),
490	+	ArrayListTest.suite(),
491		AtomicBooleanTest.suite(),
492		AtomicIntegerArrayTest.suite(),
493		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 452 | Line 510 | public class JSR166TestCase extends Test
510		CopyOnWriteArrayListTest.suite(),
511		CopyOnWriteArraySetTest.suite(),
512		CountDownLatchTest.suite(),
513	+	CountedCompleterTest.suite(),
514		CyclicBarrierTest.suite(),
515		DelayQueueTest.suite(),
516		EntryTest.suite(),
#	Line 459 | 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 480 | Line 540 | public class JSR166TestCase extends Test
540		TreeMapTest.suite(),
541		TreeSetTest.suite(),
542		TreeSubMapTest.suite(),
543	<	TreeSubSetTest.suite());
543	>	TreeSubSetTest.suite(),
544	>	VectorTest.suite());
545
546		// Java8+ test classes
547		if (atLeastJava8()) {
548		String[] java8TestClassNames = {
549	+	"ArrayDeque8Test",
550		"Atomic8Test",
551		"CompletableFutureTest",
552		"ConcurrentHashMap8Test",
553	<	"CountedCompleterTest",
553	>	"CountedCompleter8Test",
554		"DoubleAccumulatorTest",
555		"DoubleAdderTest",
556		"ForkJoinPool8Test",
557		"ForkJoinTask8Test",
558	+	"HashMapTest",
559	+	"LinkedBlockingDeque8Test",
560	+	"LinkedBlockingQueue8Test",
561	+	"LinkedHashMapTest",
562		"LongAccumulatorTest",
563		"LongAdderTest",
564		"SplittableRandomTest",
565		"StampedLockTest",
566		"SubmissionPublisherTest",
567		"ThreadLocalRandom8Test",
568	+	"TimeUnit8Test",
569		};
570		addNamedTestClasses(suite, java8TestClassNames);
571		}
#	Line 506 | Line 573 | public class JSR166TestCase extends Test
573		// Java9+ test classes
574		if (atLeastJava9()) {
575		String[] java9TestClassNames = {
576	<	// Currently empty, but expecting varhandle tests
576	>	"AtomicBoolean9Test",
577	>	"AtomicInteger9Test",
578	>	"AtomicIntegerArray9Test",
579	>	"AtomicLong9Test",
580	>	"AtomicLongArray9Test",
581	>	"AtomicReference9Test",
582	>	"AtomicReferenceArray9Test",
583	>	"ExecutorCompletionService9Test",
584	>	"ForkJoinPool9Test",
585		};
586		addNamedTestClasses(suite, java9TestClassNames);
587		}
#	Line 517 | Line 592 | public class JSR166TestCase extends Test
592		/** Returns list of junit-style test method names in given class. */
593		public static ArrayList<String> testMethodNames(Class<?> testClass) {
594		Method[] methods = testClass.getDeclaredMethods();
595	<	ArrayList<String> names = new ArrayList<String>(methods.length);
595	>	ArrayList<String> names = new ArrayList<>(methods.length);
596		for (Method method : methods) {
597		if (method.getName().startsWith("test")
598		&& Modifier.isPublic(method.getModifiers())
#	Line 544 | 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 561 | 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 582 | Line 657 | public class JSR166TestCase extends Test
657		public static long MEDIUM_DELAY_MS;
658		public static long LONG_DELAY_MS;
659
660	+	private static final long RANDOM_TIMEOUT;
661	+	private static final long RANDOM_EXPIRED_TIMEOUT;
662	+	private static final TimeUnit RANDOM_TIMEUNIT;
663	+	static {
664	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
665	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
666	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
667	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
668	+	TimeUnit[] timeUnits = TimeUnit.values();
669	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
670	+	}
671	+
672	+	/**
673	+	* Returns a timeout for use when any value at all will do.
674	+	*/
675	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
676	+
677	+	/**
678	+	* Returns a timeout that means "no waiting", i.e. not positive.
679	+	*/
680	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
681	+
682	+	/**
683	+	* Returns a random non-null TimeUnit.
684	+	*/
685	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
686	+
687		/**
688		* Returns the shortest timed delay. This can be scaled up for
689		* slow machines using the jsr166.delay.factor system property,
690	<	* or via jtreg's -timeoutFactor:<val> flag.
690	>	* or via jtreg's -timeoutFactor: flag.
691		* http://openjdk.java.net/jtreg/command-help.html
692		*/
693		protected long getShortDelay() {
694	<	return (long) (50 * delayFactor * jtregTestTimeoutFactor);
694	>	return (long) (50 * delayFactor);
695		}
696
697		/**
#	Line 602 | Line 704 | public class JSR166TestCase extends Test
704		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
705		}
706
707	+	private static final long TIMEOUT_DELAY_MS
708	+	= (long) (12.0 * Math.cbrt(delayFactor));
709	+
710		/**
711	<	* Returns a timeout in milliseconds to be used in tests that
712	<	* verify that operations block or time out.
711	>	* Returns a timeout in milliseconds to be used in tests that verify
712	>	* that operations block or time out.  We want this to be longer
713	>	* than the OS scheduling quantum, but not too long, so don't scale
714	>	* linearly with delayFactor; we use "crazy" cube root instead.
715		*/
716	<	long timeoutMillis() {
717	<	return SHORT_DELAY_MS / 4;
716	>	static long timeoutMillis() {
717	>	return TIMEOUT_DELAY_MS;
718		}
719
720		/**
#	Line 623 | Line 730 | public class JSR166TestCase extends Test
730		* The first exception encountered if any threadAssertXXX method fails.
731		*/
732		private final AtomicReference<Throwable> threadFailure
733	<	= new AtomicReference<Throwable>(null);
733	>	= new AtomicReference<>(null);
734
735		/**
736		* Records an exception so that it can be rethrown later in the test
#	Line 645 | Line 752 | public class JSR166TestCase extends Test
752		String msg = toString() + ": " + String.format(format, args);
753		System.err.println(msg);
754		dumpTestThreads();
755	<	throw new AssertionFailedError(msg);
755	>	throw new AssertionError(msg);
756		}
757
758		/**
#	Line 666 | Line 773 | public class JSR166TestCase extends Test
773		throw (RuntimeException) t;
774		else if (t instanceof Exception)
775		throw (Exception) t;
776	<	else {
777	<	AssertionFailedError afe =
671	<	new AssertionFailedError(t.toString());
672	<	afe.initCause(t);
673	<	throw afe;
674	<	}
776	>	else
777	>	throw new AssertionError(t.toString(), t);
778		}
779
780		if (Thread.interrupted())
#	Line 705 | Line 808 | public class JSR166TestCase extends Test
808
809		/**
810		* Just like fail(reason), but additionally recording (using
811	<	* threadRecordFailure) any AssertionFailedError thrown, so that
812	<	* the current testcase will fail.
811	>	* threadRecordFailure) any AssertionError thrown, so that the
812	>	* current testcase will fail.
813		*/
814		public void threadFail(String reason) {
815		try {
816		fail(reason);
817	<	} catch (AssertionFailedError t) {
818	<	threadRecordFailure(t);
819	<	throw t;
817	>	} catch (AssertionError fail) {
818	>	threadRecordFailure(fail);
819	>	throw fail;
820		}
821		}
822
823		/**
824		* Just like assertTrue(b), but additionally recording (using
825	<	* threadRecordFailure) any AssertionFailedError thrown, so that
826	<	* the current testcase will fail.
825	>	* threadRecordFailure) any AssertionError thrown, so that the
826	>	* current testcase will fail.
827		*/
828		public void threadAssertTrue(boolean b) {
829		try {
830		assertTrue(b);
831	<	} catch (AssertionFailedError t) {
832	<	threadRecordFailure(t);
833	<	throw t;
831	>	} catch (AssertionError fail) {
832	>	threadRecordFailure(fail);
833	>	throw fail;
834		}
835		}
836
837		/**
838		* Just like assertFalse(b), but additionally recording (using
839	<	* threadRecordFailure) any AssertionFailedError thrown, so that
840	<	* the current testcase will fail.
839	>	* threadRecordFailure) any AssertionError thrown, so that the
840	>	* current testcase will fail.
841		*/
842		public void threadAssertFalse(boolean b) {
843		try {
844		assertFalse(b);
845	<	} catch (AssertionFailedError t) {
846	<	threadRecordFailure(t);
847	<	throw t;
845	>	} catch (AssertionError fail) {
846	>	threadRecordFailure(fail);
847	>	throw fail;
848		}
849		}
850
851		/**
852		* Just like assertNull(x), but additionally recording (using
853	<	* threadRecordFailure) any AssertionFailedError thrown, so that
854	<	* the current testcase will fail.
853	>	* threadRecordFailure) any AssertionError thrown, so that the
854	>	* current testcase will fail.
855		*/
856		public void threadAssertNull(Object x) {
857		try {
858		assertNull(x);
859	<	} catch (AssertionFailedError t) {
860	<	threadRecordFailure(t);
861	<	throw t;
859	>	} catch (AssertionError fail) {
860	>	threadRecordFailure(fail);
861	>	throw fail;
862		}
863		}
864
865		/**
866		* Just like assertEquals(x, y), but additionally recording (using
867	<	* threadRecordFailure) any AssertionFailedError thrown, so that
868	<	* the current testcase will fail.
867	>	* threadRecordFailure) any AssertionError thrown, so that the
868	>	* current testcase will fail.
869		*/
870		public void threadAssertEquals(long x, long y) {
871		try {
872		assertEquals(x, y);
873	<	} catch (AssertionFailedError t) {
874	<	threadRecordFailure(t);
875	<	throw t;
873	>	} catch (AssertionError fail) {
874	>	threadRecordFailure(fail);
875	>	throw fail;
876		}
877		}
878
879		/**
880		* Just like assertEquals(x, y), but additionally recording (using
881	<	* threadRecordFailure) any AssertionFailedError thrown, so that
882	<	* the current testcase will fail.
881	>	* threadRecordFailure) any AssertionError thrown, so that the
882	>	* current testcase will fail.
883		*/
884		public void threadAssertEquals(Object x, Object y) {
885		try {
886		assertEquals(x, y);
887	<	} catch (AssertionFailedError fail) {
887	>	} catch (AssertionError fail) {
888		threadRecordFailure(fail);
889		throw fail;
890		} catch (Throwable fail) {
#	Line 791 | Line 894 | public class JSR166TestCase extends Test
894
895		/**
896		* Just like assertSame(x, y), but additionally recording (using
897	<	* threadRecordFailure) any AssertionFailedError thrown, so that
898	<	* the current testcase will fail.
897	>	* threadRecordFailure) any AssertionError thrown, so that the
898	>	* current testcase will fail.
899		*/
900		public void threadAssertSame(Object x, Object y) {
901		try {
902		assertSame(x, y);
903	<	} catch (AssertionFailedError fail) {
903	>	} catch (AssertionError fail) {
904		threadRecordFailure(fail);
905		throw fail;
906		}
#	Line 819 | Line 922 | public class JSR166TestCase extends Test
922
923		/**
924		* Records the given exception using {@link #threadRecordFailure},
925	<	* then rethrows the exception, wrapping it in an
926	<	* AssertionFailedError if necessary.
925	>	* then rethrows the exception, wrapping it in an AssertionError
926	>	* if necessary.
927		*/
928		public void threadUnexpectedException(Throwable t) {
929		threadRecordFailure(t);
#	Line 829 | Line 932 | public class JSR166TestCase extends Test
932		throw (RuntimeException) t;
933		else if (t instanceof Error)
934		throw (Error) t;
935	<	else {
936	<	AssertionFailedError afe =
834	<	new AssertionFailedError("unexpected exception: " + t);
835	<	afe.initCause(t);
836	<	throw afe;
837	<	}
935	>	else
936	>	throw new AssertionError("unexpected exception: " + t, t);
937		}
938
939		/**
#	Line 933 | Line 1032 | public class JSR166TestCase extends Test
1032		}
1033		}
1034
1035	<	/** Like Runnable, but with the freedom to throw anything */
1035	>	/**
1036	>	* Like Runnable, but with the freedom to throw anything.
1037	>	* junit folks had the same idea:
1038	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1039	>	*/
1040		interface Action { public void run() throws Throwable; }
1041
1042		/**
#	Line 964 | Line 1067 | public class JSR166TestCase extends Test
1067		* Uninteresting threads are filtered out.
1068		*/
1069		static void dumpTestThreads() {
1070	+	SecurityManager sm = System.getSecurityManager();
1071	+	if (sm != null) {
1072	+	try {
1073	+	System.setSecurityManager(null);
1074	+	} catch (SecurityException giveUp) {
1075	+	return;
1076	+	}
1077	+	}
1078	+
1079		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1080		System.err.println("------ stacktrace dump start ------");
1081		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1082	<	String name = info.getThreadName();
1082	>	final String name = info.getThreadName();
1083	>	String lockName;
1084		if ("Signal Dispatcher".equals(name))
1085		continue;
1086		if ("Reference Handler".equals(name)
1087	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1087	>	&& (lockName = info.getLockName()) != null
1088	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1089		continue;
1090		if ("Finalizer".equals(name)
1091	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1091	>	&& (lockName = info.getLockName()) != null
1092	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1093		continue;
1094		if ("checkForWedgedTest".equals(name))
1095		continue;
1096		System.err.print(info);
1097		}
1098		System.err.println("------ stacktrace dump end ------");
984	–	}
1099
1100	<	/**
987	<	* Checks that thread does not terminate within the default
988	<	* millisecond delay of {@code timeoutMillis()}.
989	<	*/
990	<	void assertThreadStaysAlive(Thread thread) {
991	<	assertThreadStaysAlive(thread, timeoutMillis());
1100	>	if (sm != null) System.setSecurityManager(sm);
1101		}
1102
1103		/**
1104	<	* Checks that thread does not terminate within the given millisecond delay.
1104	>	* Checks that thread eventually enters the expected blocked thread state.
1105		*/
1106	<	void assertThreadStaysAlive(Thread thread, long millis) {
1107	<	try {
1108	<	// No need to optimize the failing case via Thread.join.
1109	<	delay(millis);
1110	<	assertTrue(thread.isAlive());
1111	<	} catch (InterruptedException fail) {
1112	<	threadFail("Unexpected InterruptedException");
1113	<	}
1114	<	}
1115	<
1116	<	/**
1117	<	* Checks that the threads do not terminate within the default
1118	<	* millisecond delay of {@code timeoutMillis()}.
1010	<	*/
1011	<	void assertThreadsStayAlive(Thread... threads) {
1012	<	assertThreadsStayAlive(timeoutMillis(), threads);
1013	<	}
1014	<
1015	<	/**
1016	<	* Checks that the threads do not terminate within the given millisecond delay.
1017	<	*/
1018	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1019	<	try {
1020	<	// No need to optimize the failing case via Thread.join.
1021	<	delay(millis);
1022	<	for (Thread thread : threads)
1023	<	assertTrue(thread.isAlive());
1024	<	} catch (InterruptedException fail) {
1025	<	threadFail("Unexpected InterruptedException");
1106	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1107	>	// always sleep at least 1 ms, with high probability avoiding
1108	>	// transitory states
1109	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1110	>	try { delay(1); }
1111	>	catch (InterruptedException fail) {
1112	>	throw new AssertionError("Unexpected InterruptedException", fail);
1113	>	}
1114	>	Thread.State s = thread.getState();
1115	>	if (s == expected)
1116	>	return;
1117	>	else if (s == Thread.State.TERMINATED)
1118	>	fail("Unexpected thread termination");
1119		}
1120	+	fail("timed out waiting for thread to enter thread state " + expected);
1121		}
1122
1123		/**
#	Line 1064 | Line 1158 | public class JSR166TestCase extends Test
1158		}
1159
1160		/**
1161	+	* The maximum number of consecutive spurious wakeups we should
1162	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1163	+	*/
1164	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1165	+
1166	+	/**
1167		* The number of elements to place in collections, arrays, etc.
1168		*/
1169		public static final int SIZE = 20;
#	Line 1167 | Line 1267 | public class JSR166TestCase extends Test
1267		}
1268		public void refresh() {}
1269		public String toString() {
1270	<	List<Permission> ps = new ArrayList<Permission>();
1270	>	List<Permission> ps = new ArrayList<>();
1271		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1272		ps.add(e.nextElement());
1273		return "AdjustablePolicy with permissions " + ps;
#	Line 1195 | Line 1295 | public class JSR166TestCase extends Test
1295
1296		/**
1297		* Sleeps until the given time has elapsed.
1298	<	* Throws AssertionFailedError if interrupted.
1298	>	* Throws AssertionError if interrupted.
1299		*/
1300	<	void sleep(long millis) {
1300	>	static void sleep(long millis) {
1301		try {
1302		delay(millis);
1303		} catch (InterruptedException fail) {
1304	<	AssertionFailedError afe =
1205	<	new AssertionFailedError("Unexpected InterruptedException");
1206	<	afe.initCause(fail);
1207	<	throw afe;
1304	>	throw new AssertionError("Unexpected InterruptedException", fail);
1305		}
1306		}
1307
1308		/**
1309		* Spin-waits up to the specified number of milliseconds for the given
1310		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1311	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1312		*/
1313	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1314	<	long startTime = System.nanoTime();
1315	<	for (;;) {
1316	<	Thread.State s = thread.getState();
1317	<	if (s == Thread.State.BLOCKED ||
1318	<	s == Thread.State.WAITING ||
1319	<	s == Thread.State.TIMED_WAITING)
1320	<	return;
1321	<	else if (s == Thread.State.TERMINATED)
1313	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1314	>	Callable<Boolean> waitingForGodot) {
1315	>	for (long startTime = 0L;;) {
1316	>	switch (thread.getState()) {
1317	>	default: break;
1318	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1319	>	try {
1320	>	if (waitingForGodot == null || waitingForGodot.call())
1321	>	return;
1322	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1323	>	break;
1324	>	case TERMINATED:
1325		fail("Unexpected thread termination");
1326	+	}
1327	+
1328	+	if (startTime == 0L)
1329	+	startTime = System.nanoTime();
1330		else if (millisElapsedSince(startTime) > timeoutMillis) {
1331	<	threadAssertTrue(thread.isAlive());
1332	<	return;
1331	>	assertTrue(thread.isAlive());
1332	>	if (waitingForGodot == null
1333	>	|| thread.getState() == Thread.State.RUNNABLE)
1334	>	fail("timed out waiting for thread to enter wait state");
1335	>	else
1336	>	fail("timed out waiting for condition, thread state="
1337	>	+ thread.getState());
1338		}
1339		Thread.yield();
1340		}
1341		}
1342
1343		/**
1344	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1345	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1344	>	* Spin-waits up to the specified number of milliseconds for the given
1345	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1346	>	*/
1347	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1348	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1349	>	}
1350	>
1351	>	/**
1352	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1353	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1354		*/
1355		void waitForThreadToEnterWaitState(Thread thread) {
1356	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1356	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1357	>	}
1358	>
1359	>	/**
1360	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1361	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1362	>	* and additionally satisfy the given condition.
1363	>	*/
1364	>	void waitForThreadToEnterWaitState(Thread thread,
1365	>	Callable<Boolean> waitingForGodot) {
1366	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1367		}
1368
1369		/**
#	Line 1253 | Line 1381 | public class JSR166TestCase extends Test
1381		//             r.run();
1382		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1383		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1384	<	//             throw new AssertionFailedError("did not return promptly");
1384	>	//             throw new AssertionError("did not return promptly");
1385		//     }
1386
1387		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1266 | Line 1394 | public class JSR166TestCase extends Test
1394		*/
1395		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1396		long startTime = System.nanoTime();
1397	+	T actual = null;
1398		try {
1399	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1399	>	actual = f.get(timeoutMillis, MILLISECONDS);
1400		} catch (Throwable fail) { threadUnexpectedException(fail); }
1401	+	assertEquals(expectedValue, actual);
1402		if (millisElapsedSince(startTime) > timeoutMillis/2)
1403	<	throw new AssertionFailedError("timed get did not return promptly");
1403	>	throw new AssertionError("timed get did not return promptly");
1404		}
1405
1406		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1328 | Line 1458 | public class JSR166TestCase extends Test
1458		}
1459		}
1460
1331	–	public abstract class RunnableShouldThrow implements Runnable {
1332	–	protected abstract void realRun() throws Throwable;
1333	–
1334	–	final Class<?> exceptionClass;
1335	–
1336	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1337	–	this.exceptionClass = exceptionClass;
1338	–	}
1339	–
1340	–	public final void run() {
1341	–	try {
1342	–	realRun();
1343	–	threadShouldThrow(exceptionClass.getSimpleName());
1344	–	} catch (Throwable t) {
1345	–	if (! exceptionClass.isInstance(t))
1346	–	threadUnexpectedException(t);
1347	–	}
1348	–	}
1349	–	}
1350	–
1461		public abstract class ThreadShouldThrow extends Thread {
1462		protected abstract void realRun() throws Throwable;
1463
#	Line 1360 | Line 1470 | public class JSR166TestCase extends Test
1470		public final void run() {
1471		try {
1472		realRun();
1363	–	threadShouldThrow(exceptionClass.getSimpleName());
1473		} catch (Throwable t) {
1474		if (! exceptionClass.isInstance(t))
1475		threadUnexpectedException(t);
1476	+	return;
1477		}
1478	+	threadShouldThrow(exceptionClass.getSimpleName());
1479		}
1480		}
1481
#	Line 1374 | Line 1485 | public class JSR166TestCase extends Test
1485		public final void run() {
1486		try {
1487		realRun();
1377	–	threadShouldThrow("InterruptedException");
1488		} catch (InterruptedException success) {
1489		threadAssertFalse(Thread.interrupted());
1490	+	return;
1491		} catch (Throwable fail) {
1492		threadUnexpectedException(fail);
1493		}
1494	+	threadShouldThrow("InterruptedException");
1495		}
1496		}
1497
#	Line 1391 | Line 1503 | public class JSR166TestCase extends Test
1503		return realCall();
1504		} catch (Throwable fail) {
1505		threadUnexpectedException(fail);
1394	–	return null;
1395	–	}
1396	–	}
1397	–	}
1398	–
1399	–	public abstract class CheckedInterruptedCallable<T>
1400	–	implements Callable<T> {
1401	–	protected abstract T realCall() throws Throwable;
1402	–
1403	–	public final T call() {
1404	–	try {
1405	–	T result = realCall();
1406	–	threadShouldThrow("InterruptedException");
1407	–	return result;
1408	–	} catch (InterruptedException success) {
1409	–	threadAssertFalse(Thread.interrupted());
1410	–	} catch (Throwable fail) {
1411	–	threadUnexpectedException(fail);
1506		}
1507	<	return null;
1507	>	throw new AssertionError("unreached");
1508		}
1509		}
1510
#	Line 1466 | Line 1560 | public class JSR166TestCase extends Test
1560		return new LatchAwaiter(latch);
1561		}
1562
1563	<	public void await(CountDownLatch latch) {
1563	>	public void await(CountDownLatch latch, long timeoutMillis) {
1564	>	boolean timedOut = false;
1565		try {
1566	<	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1472	<	fail("timed out waiting for CountDownLatch for "
1473	<	+ (LONG_DELAY_MS/1000) + " sec");
1566	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1567		} catch (Throwable fail) {
1568		threadUnexpectedException(fail);
1569		}
1570	+	if (timedOut)
1571	+	fail("timed out waiting for CountDownLatch for "
1572	+	+ (timeoutMillis/1000) + " sec");
1573	+	}
1574	+
1575	+	public void await(CountDownLatch latch) {
1576	+	await(latch, LONG_DELAY_MS);
1577		}
1578
1579		public void await(Semaphore semaphore) {
1580	+	boolean timedOut = false;
1581	+	try {
1582	+	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1583	+	} catch (Throwable fail) {
1584	+	threadUnexpectedException(fail);
1585	+	}
1586	+	if (timedOut)
1587	+	fail("timed out waiting for Semaphore for "
1588	+	+ (LONG_DELAY_MS/1000) + " sec");
1589	+	}
1590	+
1591	+	public void await(CyclicBarrier barrier) {
1592		try {
1593	<	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1482	<	fail("timed out waiting for Semaphore for "
1483	<	+ (LONG_DELAY_MS/1000) + " sec");
1593	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1594		} catch (Throwable fail) {
1595		threadUnexpectedException(fail);
1596		}
#	Line 1500 | Line 1610 | public class JSR166TestCase extends Test
1610		//         long startTime = System.nanoTime();
1611		//         while (!flag.get()) {
1612		//             if (millisElapsedSince(startTime) > timeoutMillis)
1613	<	//                 throw new AssertionFailedError("timed out");
1613	>	//                 throw new AssertionError("timed out");
1614		//             Thread.yield();
1615		//         }
1616		//     }
#	Line 1509 | Line 1619 | public class JSR166TestCase extends Test
1619		public String call() { throw new NullPointerException(); }
1620		}
1621
1512	–	public static class CallableOne implements Callable<Integer> {
1513	–	public Integer call() { return one; }
1514	–	}
1515	–
1516	–	public class ShortRunnable extends CheckedRunnable {
1517	–	protected void realRun() throws Throwable {
1518	–	delay(SHORT_DELAY_MS);
1519	–	}
1520	–	}
1521	–
1522	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1523	–	protected void realRun() throws InterruptedException {
1524	–	delay(SHORT_DELAY_MS);
1525	–	}
1526	–	}
1527	–
1528	–	public class SmallRunnable extends CheckedRunnable {
1529	–	protected void realRun() throws Throwable {
1530	–	delay(SMALL_DELAY_MS);
1531	–	}
1532	–	}
1533	–
1534	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1535	–	protected void realRun() {
1536	–	try {
1537	–	delay(SMALL_DELAY_MS);
1538	–	} catch (InterruptedException ok) {}
1539	–	}
1540	–	}
1541	–
1542	–	public class SmallCallable extends CheckedCallable {
1543	–	protected Object realCall() throws InterruptedException {
1544	–	delay(SMALL_DELAY_MS);
1545	–	return Boolean.TRUE;
1546	–	}
1547	–	}
1548	–
1549	–	public class MediumRunnable extends CheckedRunnable {
1550	–	protected void realRun() throws Throwable {
1551	–	delay(MEDIUM_DELAY_MS);
1552	–	}
1553	–	}
1554	–
1555	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1556	–	protected void realRun() throws InterruptedException {
1557	–	delay(MEDIUM_DELAY_MS);
1558	–	}
1559	–	}
1560	–
1622		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1623		return new CheckedRunnable() {
1624		protected void realRun() {
#	Line 1567 | Line 1628 | public class JSR166TestCase extends Test
1628		}};
1629		}
1630
1570	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1571	–	protected void realRun() {
1572	–	try {
1573	–	delay(MEDIUM_DELAY_MS);
1574	–	} catch (InterruptedException ok) {}
1575	–	}
1576	–	}
1577	–
1578	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1579	–	protected void realRun() {
1580	–	try {
1581	–	delay(LONG_DELAY_MS);
1582	–	} catch (InterruptedException ok) {}
1583	–	}
1584	–	}
1585	–
1631		/**
1632		* For use as ThreadFactory in constructors
1633		*/
#	Line 1596 | Line 1641 | public class JSR166TestCase extends Test
1641		boolean isDone();
1642		}
1643
1599	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1600	–	return new TrackedRunnable() {
1601	–	private volatile boolean done = false;
1602	–	public boolean isDone() { return done; }
1603	–	public void run() {
1604	–	try {
1605	–	delay(timeoutMillis);
1606	–	done = true;
1607	–	} catch (InterruptedException ok) {}
1608	–	}
1609	–	};
1610	–	}
1611	–
1612	–	public static class TrackedShortRunnable implements Runnable {
1613	–	public volatile boolean done = false;
1614	–	public void run() {
1615	–	try {
1616	–	delay(SHORT_DELAY_MS);
1617	–	done = true;
1618	–	} catch (InterruptedException ok) {}
1619	–	}
1620	–	}
1621	–
1622	–	public static class TrackedSmallRunnable implements Runnable {
1623	–	public volatile boolean done = false;
1624	–	public void run() {
1625	–	try {
1626	–	delay(SMALL_DELAY_MS);
1627	–	done = true;
1628	–	} catch (InterruptedException ok) {}
1629	–	}
1630	–	}
1631	–
1632	–	public static class TrackedMediumRunnable implements Runnable {
1633	–	public volatile boolean done = false;
1634	–	public void run() {
1635	–	try {
1636	–	delay(MEDIUM_DELAY_MS);
1637	–	done = true;
1638	–	} catch (InterruptedException ok) {}
1639	–	}
1640	–	}
1641	–
1642	–	public static class TrackedLongRunnable implements Runnable {
1643	–	public volatile boolean done = false;
1644	–	public void run() {
1645	–	try {
1646	–	delay(LONG_DELAY_MS);
1647	–	done = true;
1648	–	} catch (InterruptedException ok) {}
1649	–	}
1650	–	}
1651	–
1644		public static class TrackedNoOpRunnable implements Runnable {
1645		public volatile boolean done = false;
1646		public void run() {
#	Line 1656 | Line 1648 | public class JSR166TestCase extends Test
1648		}
1649		}
1650
1659	–	public static class TrackedCallable implements Callable {
1660	–	public volatile boolean done = false;
1661	–	public Object call() {
1662	–	try {
1663	–	delay(SMALL_DELAY_MS);
1664	–	done = true;
1665	–	} catch (InterruptedException ok) {}
1666	–	return Boolean.TRUE;
1667	–	}
1668	–	}
1669	–
1651		/**
1652		* Analog of CheckedRunnable for RecursiveAction
1653		*/
#	Line 1693 | Line 1674 | public class JSR166TestCase extends Test
1674		return realCompute();
1675		} catch (Throwable fail) {
1676		threadUnexpectedException(fail);
1696	–	return null;
1677		}
1678	+	throw new AssertionError("unreached");
1679		}
1680		}
1681
#	Line 1708 | Line 1689 | public class JSR166TestCase extends Test
1689
1690		/**
1691		* A CyclicBarrier that uses timed await and fails with
1692	<	* AssertionFailedErrors instead of throwing checked exceptions.
1692	>	* AssertionErrors instead of throwing checked exceptions.
1693		*/
1694	<	public class CheckedBarrier extends CyclicBarrier {
1694	>	public static class CheckedBarrier extends CyclicBarrier {
1695		public CheckedBarrier(int parties) { super(parties); }
1696
1697		public int await() {
1698		try {
1699		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1700		} catch (TimeoutException timedOut) {
1701	<	throw new AssertionFailedError("timed out");
1701	>	throw new AssertionError("timed out");
1702		} catch (Exception fail) {
1703	<	AssertionFailedError afe =
1723	<	new AssertionFailedError("Unexpected exception: " + fail);
1724	<	afe.initCause(fail);
1725	<	throw afe;
1703	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1704		}
1705		}
1706		}
#	Line 1733 | Line 1711 | public class JSR166TestCase extends Test
1711		assertEquals(0, q.size());
1712		assertNull(q.peek());
1713		assertNull(q.poll());
1714	<	assertNull(q.poll(0, MILLISECONDS));
1714	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1715		assertEquals(q.toString(), "[]");
1716		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1717		assertFalse(q.iterator().hasNext());
#	Line 1774 | Line 1752 | public class JSR166TestCase extends Test
1752		}
1753		}
1754
1755	+	void assertImmutable(Object o) {
1756	+	if (o instanceof Collection) {
1757	+	assertThrows(
1758	+	UnsupportedOperationException.class,
1759	+	() -> ((Collection) o).add(null));
1760	+	}
1761	+	}
1762	+
1763		@SuppressWarnings("unchecked")
1764		<T> T serialClone(T o) {
1765	+	T clone = null;
1766		try {
1767		ObjectInputStream ois = new ObjectInputStream
1768		(new ByteArrayInputStream(serialBytes(o)));
1769	<	T clone = (T) ois.readObject();
1783	<	assertSame(o.getClass(), clone.getClass());
1784	<	return clone;
1769	>	clone = (T) ois.readObject();
1770		} catch (Throwable fail) {
1771		threadUnexpectedException(fail);
1772	+	}
1773	+	if (o == clone) assertImmutable(o);
1774	+	else assertSame(o.getClass(), clone.getClass());
1775	+	return clone;
1776	+	}
1777	+
1778	+	/**
1779	+	* A version of serialClone that leaves error handling (for
1780	+	* e.g. NotSerializableException) up to the caller.
1781	+	*/
1782	+	@SuppressWarnings("unchecked")
1783	+	<T> T serialClonePossiblyFailing(T o)
1784	+	throws ReflectiveOperationException, java.io.IOException {
1785	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1786	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1787	+	oos.writeObject(o);
1788	+	oos.flush();
1789	+	oos.close();
1790	+	ObjectInputStream ois = new ObjectInputStream
1791	+	(new ByteArrayInputStream(bos.toByteArray()));
1792	+	T clone = (T) ois.readObject();
1793	+	if (o == clone) assertImmutable(o);
1794	+	else assertSame(o.getClass(), clone.getClass());
1795	+	return clone;
1796	+	}
1797	+
1798	+	/**
1799	+	* If o implements Cloneable and has a public clone method,
1800	+	* returns a clone of o, else null.
1801	+	*/
1802	+	@SuppressWarnings("unchecked")
1803	+	<T> T cloneableClone(T o) {
1804	+	if (!(o instanceof Cloneable)) return null;
1805	+	final T clone;
1806	+	try {
1807	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1808	+	} catch (NoSuchMethodException ok) {
1809		return null;
1810	+	} catch (ReflectiveOperationException unexpected) {
1811	+	throw new Error(unexpected);
1812		}
1813	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1814	+	assertSame(o.getClass(), clone.getClass());
1815	+	return clone;
1816		}
1817
1818		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1819	<	Runnable... throwingActions) {
1820	<	for (Runnable throwingAction : throwingActions) {
1819	>	Action... throwingActions) {
1820	>	for (Action throwingAction : throwingActions) {
1821		boolean threw = false;
1822		try { throwingAction.run(); }
1823		catch (Throwable t) {
1824		threw = true;
1825	<	if (!expectedExceptionClass.isInstance(t)) {
1826	<	AssertionFailedError afe =
1827	<	new AssertionFailedError
1828	<	("Expected " + expectedExceptionClass.getName() +
1829	<	", got " + t.getClass().getName());
1803	<	afe.initCause(t);
1804	<	threadUnexpectedException(afe);
1805	<	}
1825	>	if (!expectedExceptionClass.isInstance(t))
1826	>	throw new AssertionError(
1827	>	"Expected " + expectedExceptionClass.getName() +
1828	>	", got " + t.getClass().getName(),
1829	>	t);
1830		}
1831		if (!threw)
1832		shouldThrow(expectedExceptionClass.getName());
#	Line 1816 | Line 1840 | public class JSR166TestCase extends Test
1840		} catch (NoSuchElementException success) {}
1841		assertFalse(it.hasNext());
1842		}
1843	+
1844	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1845	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1846	+	}
1847	+
1848	+	public Runnable runnableThrowing(final RuntimeException ex) {
1849	+	return new Runnable() { public void run() { throw ex; }};
1850	+	}
1851	+
1852	+	/** A reusable thread pool to be shared by tests. */
1853	+	static final ExecutorService cachedThreadPool =
1854	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1855	+	1000L, MILLISECONDS,
1856	+	new SynchronousQueue<Runnable>());
1857	+
1858	+	static <T> void shuffle(T[] array) {
1859	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1860	+	}
1861	+
1862	+	/**
1863	+	* Returns the same String as would be returned by {@link
1864	+	* Object#toString}, whether or not the given object's class
1865	+	* overrides toString().
1866	+	*
1867	+	* @see System#identityHashCode
1868	+	*/
1869	+	static String identityString(Object x) {
1870	+	return x.getClass().getName()
1871	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1872	+	}
1873	+
1874	+	// --- Shared assertions for Executor tests ---
1875	+
1876	+	/**
1877	+	* Returns maximum number of tasks that can be submitted to given
1878	+	* pool (with bounded queue) before saturation (when submission
1879	+	* throws RejectedExecutionException).
1880	+	*/
1881	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1882	+	BlockingQueue<Runnable> q = pool.getQueue();
1883	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1884	+	}
1885	+
1886	+	@SuppressWarnings("FutureReturnValueIgnored")
1887	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1888	+	try {
1889	+	e.execute((Runnable) null);
1890	+	shouldThrow();
1891	+	} catch (NullPointerException success) {}
1892	+
1893	+	if (! (e instanceof ExecutorService)) return;
1894	+	ExecutorService es = (ExecutorService) e;
1895	+	try {
1896	+	es.submit((Runnable) null);
1897	+	shouldThrow();
1898	+	} catch (NullPointerException success) {}
1899	+	try {
1900	+	es.submit((Runnable) null, Boolean.TRUE);
1901	+	shouldThrow();
1902	+	} catch (NullPointerException success) {}
1903	+	try {
1904	+	es.submit((Callable) null);
1905	+	shouldThrow();
1906	+	} catch (NullPointerException success) {}
1907	+
1908	+	if (! (e instanceof ScheduledExecutorService)) return;
1909	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1910	+	try {
1911	+	ses.schedule((Runnable) null,
1912	+	randomTimeout(), randomTimeUnit());
1913	+	shouldThrow();
1914	+	} catch (NullPointerException success) {}
1915	+	try {
1916	+	ses.schedule((Callable) null,
1917	+	randomTimeout(), randomTimeUnit());
1918	+	shouldThrow();
1919	+	} catch (NullPointerException success) {}
1920	+	try {
1921	+	ses.scheduleAtFixedRate((Runnable) null,
1922	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1923	+	shouldThrow();
1924	+	} catch (NullPointerException success) {}
1925	+	try {
1926	+	ses.scheduleWithFixedDelay((Runnable) null,
1927	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1928	+	shouldThrow();
1929	+	} catch (NullPointerException success) {}
1930	+	}
1931	+
1932	+	void setRejectedExecutionHandler(
1933	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1934	+	p.setRejectedExecutionHandler(handler);
1935	+	assertSame(handler, p.getRejectedExecutionHandler());
1936	+	}
1937	+
1938	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1939	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1940	+	final long savedTaskCount = p.getTaskCount();
1941	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1942	+	final int savedQueueSize = p.getQueue().size();
1943	+	final boolean stock = (p.getClass().getClassLoader() == null);
1944	+
1945	+	Runnable r = () -> {};
1946	+	Callable<Boolean> c = () -> Boolean.TRUE;
1947	+
1948	+	class Recorder implements RejectedExecutionHandler {
1949	+	public volatile Runnable r = null;
1950	+	public volatile ThreadPoolExecutor p = null;
1951	+	public void reset() { r = null; p = null; }
1952	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1953	+	assertNull(this.r);
1954	+	assertNull(this.p);
1955	+	this.r = r;
1956	+	this.p = p;
1957	+	}
1958	+	}
1959	+
1960	+	// check custom handler is invoked exactly once per task
1961	+	Recorder recorder = new Recorder();
1962	+	setRejectedExecutionHandler(p, recorder);
1963	+	for (int i = 2; i--> 0; ) {
1964	+	recorder.reset();
1965	+	p.execute(r);
1966	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1967	+	assertSame(r, recorder.r);
1968	+	assertSame(p, recorder.p);
1969	+
1970	+	recorder.reset();
1971	+	assertFalse(p.submit(r).isDone());
1972	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1973	+	assertSame(p, recorder.p);
1974	+
1975	+	recorder.reset();
1976	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1977	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1978	+	assertSame(p, recorder.p);
1979	+
1980	+	recorder.reset();
1981	+	assertFalse(p.submit(c).isDone());
1982	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1983	+	assertSame(p, recorder.p);
1984	+
1985	+	if (p instanceof ScheduledExecutorService) {
1986	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1987	+	ScheduledFuture<?> future;
1988	+
1989	+	recorder.reset();
1990	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
1991	+	assertFalse(future.isDone());
1992	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1993	+	assertSame(p, recorder.p);
1994	+
1995	+	recorder.reset();
1996	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
1997	+	assertFalse(future.isDone());
1998	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1999	+	assertSame(p, recorder.p);
2000	+
2001	+	recorder.reset();
2002	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2003	+	assertFalse(future.isDone());
2004	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2005	+	assertSame(p, recorder.p);
2006	+
2007	+	recorder.reset();
2008	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2009	+	assertFalse(future.isDone());
2010	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2011	+	assertSame(p, recorder.p);
2012	+	}
2013	+	}
2014	+
2015	+	// Checking our custom handler above should be sufficient, but
2016	+	// we add some integration tests of standard handlers.
2017	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2018	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2019	+
2020	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2021	+	try {
2022	+	p.execute(setThread);
2023	+	shouldThrow();
2024	+	} catch (RejectedExecutionException success) {}
2025	+	assertNull(thread.get());
2026	+
2027	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2028	+	p.execute(setThread);
2029	+	assertNull(thread.get());
2030	+
2031	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2032	+	p.execute(setThread);
2033	+	if (p.isShutdown())
2034	+	assertNull(thread.get());
2035	+	else
2036	+	assertSame(Thread.currentThread(), thread.get());
2037	+
2038	+	setRejectedExecutionHandler(p, savedHandler);
2039	+
2040	+	// check that pool was not perturbed by handlers
2041	+	assertEquals(savedTaskCount, p.getTaskCount());
2042	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2043	+	assertEquals(savedQueueSize, p.getQueue().size());
2044	+	}
2045	+
2046	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2047	+	assertEquals(x, y);
2048	+	assertEquals(y, x);
2049	+	assertEquals(x.isEmpty(), y.isEmpty());
2050	+	assertEquals(x.size(), y.size());
2051	+	if (x instanceof List) {
2052	+	assertEquals(x.toString(), y.toString());
2053	+	}
2054	+	if (x instanceof List || x instanceof Set) {
2055	+	assertEquals(x.hashCode(), y.hashCode());
2056	+	}
2057	+	if (x instanceof List || x instanceof Deque) {
2058	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2059	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2060	+	y.toArray(new Object[0])));
2061	+	}
2062	+	}
2063	+
2064	+	/**
2065	+	* A weaker form of assertCollectionsEquals which does not insist
2066	+	* that the two collections satisfy Object#equals(Object), since
2067	+	* they may use identity semantics as Deques do.
2068	+	*/
2069	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2070	+	if (x instanceof List || x instanceof Set)
2071	+	assertCollectionsEquals(x, y);
2072	+	else {
2073	+	assertEquals(x.isEmpty(), y.isEmpty());
2074	+	assertEquals(x.size(), y.size());
2075	+	assertEquals(new HashSet(x), new HashSet(y));
2076	+	if (x instanceof Deque) {
2077	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2078	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2079	+	y.toArray(new Object[0])));
2080	+	}
2081	+	}
2082	+	}
2083		}

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