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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.177 by jsr166, Mon Oct 12 23:52:44 2015 UTC vs.
Revision 1.263 by jsr166, Thu Sep 5 22:05:30 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.
8		*/
9
10	+	/*
11	+	* @test
12	+	* @summary JSR-166 tck tests, in a number of variations.
13	+	*          The first is the conformance testing variant,
14	+	*          while others also test implementation details.
15	+	* @build *
16	+	* @modules java.management
17	+	* @run junit/othervm/timeout=1000 JSR166TestCase
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;
44		import static java.util.concurrent.TimeUnit.MINUTES;
45		import static java.util.concurrent.TimeUnit.NANOSECONDS;
#	Line 20 | 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;
23	–	import java.nio.file.Files;
24	–	import java.nio.file.Paths;
57		import java.security.CodeSource;
58		import java.security.Permission;
59		import java.security.PermissionCollection;
#	Line 31 | 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;
57	–	import java.util.regex.Matcher;
103		import java.util.regex.Pattern;
104
60	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107		import junit.framework.TestResult;
#	Line 73 | 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 112 | Line 164 | import junit.framework.TestSuite;
164		* methods as there are exceptions the method can throw. Sometimes
165		* there are multiple tests per JSR166 method when the different
166		* "normal" behaviors differ significantly. And sometimes testcases
167	<	* cover multiple methods when they cannot be tested in
116	<	* isolation.
167	>	* cover multiple methods when they cannot be tested in isolation.
168		*
169		* <li>The documentation style for testcases is to provide as javadoc
170		* a simple sentence or two describing the property that the testcase
#	Line 176 | Line 227 | public class JSR166TestCase extends Test
227		private static final int suiteRuns =
228		Integer.getInteger("jsr166.suiteRuns", 1);
229
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 Float.NaN;
237	+	try {
238	+	return Float.parseFloat(floatString);
239	+	} catch (NumberFormatException ex) {
240	+	throw new IllegalArgumentException(
241	+	String.format("Bad float value in system property %s=%s",
242	+	name, floatString));
243	+	}
244	+	}
245	+
246	+	/**
247	+	* The scaling factor to apply to standard delays used in tests.
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); }
270
#	Line 199 | 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 227 | 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 273 | Line 365 | public class JSR166TestCase extends Test
365		main(suite(), args);
366		}
367
368	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
369	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
370	+	long runTime;
371	+	public void startTest(Test test) {}
372	+	protected void printHeader(long runTime) {
373	+	this.runTime = runTime; // defer printing for later
374	+	}
375	+	protected void printFooter(TestResult result) {
376	+	if (result.wasSuccessful()) {
377	+	getWriter().println("OK (" + result.runCount() + " tests)"
378	+	+ "  Time: " + elapsedTimeAsString(runTime));
379	+	} else {
380	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
381	+	super.printFooter(result);
382	+	}
383	+	}
384	+	}
385	+
386	+	/**
387	+	* Returns a TestRunner that doesn't bother with unnecessary
388	+	* fluff, like printing a "." for each test case.
389	+	*/
390	+	static junit.textui.TestRunner newPithyTestRunner() {
391	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
392	+	runner.setPrinter(new PithyResultPrinter(System.out));
393	+	return runner;
394	+	}
395	+
396		/**
397		* Runs all unit tests in the given test suite.
398		* Actual behavior influenced by jsr166.* system properties.
#	Line 284 | Line 404 | public class JSR166TestCase extends Test
404		System.setSecurityManager(new SecurityManager());
405		}
406		for (int i = 0; i < suiteRuns; i++) {
407	<	TestResult result = junit.textui.TestRunner.run(suite);
407	>	TestResult result = newPithyTestRunner().doRun(suite);
408		if (!result.wasSuccessful())
409		System.exit(1);
410		System.gc();
#	Line 310 | 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",
314	<	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 336 | 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 368 | 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 390 | 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 397 | 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 418 | 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 444 | 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 455 | 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 482 | 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 499 | 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 521 | Line 658 | public class JSR166TestCase extends Test
658		public static long LONG_DELAY_MS;
659
660		/**
661	<	* Returns the shortest timed delay. This could
662	<	* be reimplemented to use for example a Property.
661	>	* A delay significantly longer than LONG_DELAY_MS.
662	>	* Use this in a thread that is waited for via awaitTermination(Thread).
663	>	*/
664	>	public static long LONGER_DELAY_MS;
665	>
666	>	private static final long RANDOM_TIMEOUT;
667	>	private static final long RANDOM_EXPIRED_TIMEOUT;
668	>	private static final TimeUnit RANDOM_TIMEUNIT;
669	>	static {
670	>	ThreadLocalRandom rnd = ThreadLocalRandom.current();
671	>	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
672	>	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
673	>	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
674	>	TimeUnit[] timeUnits = TimeUnit.values();
675	>	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
676	>	}
677	>
678	>	/**
679	>	* Returns a timeout for use when any value at all will do.
680	>	*/
681	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
682	>
683	>	/**
684	>	* Returns a timeout that means "no waiting", i.e. not positive.
685	>	*/
686	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
687	>
688	>	/**
689	>	* Returns a random non-null TimeUnit.
690	>	*/
691	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
692	>
693	>	/**
694	>	* Returns a random boolean; a "coin flip".
695	>	*/
696	>	static boolean randomBoolean() {
697	>	return ThreadLocalRandom.current().nextBoolean();
698	>	}
699	>
700	>	/**
701	>	* Returns a random element from given choices.
702	>	*/
703	>	<T> T chooseRandomly(T... choices) {
704	>	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
705	>	}
706	>
707	>	/**
708	>	* Returns the shortest timed delay. This can be scaled up for
709	>	* slow machines using the jsr166.delay.factor system property,
710	>	* or via jtreg's -timeoutFactor: flag.
711	>	* http://openjdk.java.net/jtreg/command-help.html
712		*/
713		protected long getShortDelay() {
714	<	return 50;
714	>	return (long) (50 * delayFactor);
715		}
716
717		/**
#	Line 536 | Line 722 | public class JSR166TestCase extends Test
722		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
723		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
724		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
725	+	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
726		}
727
728	+	private static final long TIMEOUT_DELAY_MS
729	+	= (long) (12.0 * Math.cbrt(delayFactor));
730	+
731		/**
732	<	* Returns a timeout in milliseconds to be used in tests that
733	<	* verify that operations block or time out.
732	>	* Returns a timeout in milliseconds to be used in tests that verify
733	>	* that operations block or time out.  We want this to be longer
734	>	* than the OS scheduling quantum, but not too long, so don't scale
735	>	* linearly with delayFactor; we use "crazy" cube root instead.
736		*/
737	<	long timeoutMillis() {
738	<	return SHORT_DELAY_MS / 4;
737	>	static long timeoutMillis() {
738	>	return TIMEOUT_DELAY_MS;
739		}
740
741		/**
#	Line 559 | Line 751 | public class JSR166TestCase extends Test
751		* The first exception encountered if any threadAssertXXX method fails.
752		*/
753		private final AtomicReference<Throwable> threadFailure
754	<	= new AtomicReference<Throwable>(null);
754	>	= new AtomicReference<>(null);
755
756		/**
757		* Records an exception so that it can be rethrown later in the test
#	Line 569 | Line 761 | public class JSR166TestCase extends Test
761		*/
762		public void threadRecordFailure(Throwable t) {
763		System.err.println(t);
764	<	dumpTestThreads();
765	<	threadFailure.compareAndSet(null, t);
764	>	if (threadFailure.compareAndSet(null, t))
765	>	dumpTestThreads();
766		}
767
768		public void setUp() {
#	Line 581 | Line 773 | public class JSR166TestCase extends Test
773		String msg = toString() + ": " + String.format(format, args);
774		System.err.println(msg);
775		dumpTestThreads();
776	<	throw new AssertionFailedError(msg);
776	>	throw new AssertionError(msg);
777		}
778
779		/**
#	Line 602 | Line 794 | public class JSR166TestCase extends Test
794		throw (RuntimeException) t;
795		else if (t instanceof Exception)
796		throw (Exception) t;
797	<	else {
798	<	AssertionFailedError afe =
607	<	new AssertionFailedError(t.toString());
608	<	afe.initCause(t);
609	<	throw afe;
610	<	}
797	>	else
798	>	throw new AssertionError(t.toString(), t);
799		}
800
801		if (Thread.interrupted())
#	Line 641 | Line 829 | public class JSR166TestCase extends Test
829
830		/**
831		* Just like fail(reason), but additionally recording (using
832	<	* threadRecordFailure) any AssertionFailedError thrown, so that
833	<	* the current testcase will fail.
832	>	* threadRecordFailure) any AssertionError thrown, so that the
833	>	* current testcase will fail.
834		*/
835		public void threadFail(String reason) {
836		try {
837		fail(reason);
838	<	} catch (AssertionFailedError t) {
839	<	threadRecordFailure(t);
840	<	throw t;
838	>	} catch (AssertionError fail) {
839	>	threadRecordFailure(fail);
840	>	throw fail;
841		}
842		}
843
844		/**
845		* Just like assertTrue(b), but additionally recording (using
846	<	* threadRecordFailure) any AssertionFailedError thrown, so that
847	<	* the current testcase will fail.
846	>	* threadRecordFailure) any AssertionError thrown, so that the
847	>	* current testcase will fail.
848		*/
849		public void threadAssertTrue(boolean b) {
850		try {
851		assertTrue(b);
852	<	} catch (AssertionFailedError t) {
853	<	threadRecordFailure(t);
854	<	throw t;
852	>	} catch (AssertionError fail) {
853	>	threadRecordFailure(fail);
854	>	throw fail;
855		}
856		}
857
858		/**
859		* Just like assertFalse(b), but additionally recording (using
860	<	* threadRecordFailure) any AssertionFailedError thrown, so that
861	<	* the current testcase will fail.
860	>	* threadRecordFailure) any AssertionError thrown, so that the
861	>	* current testcase will fail.
862		*/
863		public void threadAssertFalse(boolean b) {
864		try {
865		assertFalse(b);
866	<	} catch (AssertionFailedError t) {
867	<	threadRecordFailure(t);
868	<	throw t;
866	>	} catch (AssertionError fail) {
867	>	threadRecordFailure(fail);
868	>	throw fail;
869		}
870		}
871
872		/**
873		* Just like assertNull(x), but additionally recording (using
874	<	* threadRecordFailure) any AssertionFailedError thrown, so that
875	<	* the current testcase will fail.
874	>	* threadRecordFailure) any AssertionError thrown, so that the
875	>	* current testcase will fail.
876		*/
877		public void threadAssertNull(Object x) {
878		try {
879		assertNull(x);
880	<	} catch (AssertionFailedError t) {
881	<	threadRecordFailure(t);
882	<	throw t;
880	>	} catch (AssertionError fail) {
881	>	threadRecordFailure(fail);
882	>	throw fail;
883		}
884		}
885
886		/**
887		* Just like assertEquals(x, y), but additionally recording (using
888	<	* threadRecordFailure) any AssertionFailedError thrown, so that
889	<	* the current testcase will fail.
888	>	* threadRecordFailure) any AssertionError thrown, so that the
889	>	* current testcase will fail.
890		*/
891		public void threadAssertEquals(long x, long y) {
892		try {
893		assertEquals(x, y);
894	<	} catch (AssertionFailedError t) {
895	<	threadRecordFailure(t);
896	<	throw t;
894	>	} catch (AssertionError fail) {
895	>	threadRecordFailure(fail);
896	>	throw fail;
897		}
898		}
899
900		/**
901		* Just like assertEquals(x, y), but additionally recording (using
902	<	* threadRecordFailure) any AssertionFailedError thrown, so that
903	<	* the current testcase will fail.
902	>	* threadRecordFailure) any AssertionError thrown, so that the
903	>	* current testcase will fail.
904		*/
905		public void threadAssertEquals(Object x, Object y) {
906		try {
907		assertEquals(x, y);
908	<	} catch (AssertionFailedError fail) {
908	>	} catch (AssertionError fail) {
909		threadRecordFailure(fail);
910		throw fail;
911		} catch (Throwable fail) {
#	Line 727 | Line 915 | public class JSR166TestCase extends Test
915
916		/**
917		* Just like assertSame(x, y), but additionally recording (using
918	<	* threadRecordFailure) any AssertionFailedError thrown, so that
919	<	* the current testcase will fail.
918	>	* threadRecordFailure) any AssertionError thrown, so that the
919	>	* current testcase will fail.
920		*/
921		public void threadAssertSame(Object x, Object y) {
922		try {
923		assertSame(x, y);
924	<	} catch (AssertionFailedError fail) {
924	>	} catch (AssertionError fail) {
925		threadRecordFailure(fail);
926		throw fail;
927		}
#	Line 755 | Line 943 | public class JSR166TestCase extends Test
943
944		/**
945		* Records the given exception using {@link #threadRecordFailure},
946	<	* then rethrows the exception, wrapping it in an
947	<	* AssertionFailedError if necessary.
946	>	* then rethrows the exception, wrapping it in an AssertionError
947	>	* if necessary.
948		*/
949		public void threadUnexpectedException(Throwable t) {
950		threadRecordFailure(t);
#	Line 765 | Line 953 | public class JSR166TestCase extends Test
953		throw (RuntimeException) t;
954		else if (t instanceof Error)
955		throw (Error) t;
956	<	else {
957	<	AssertionFailedError afe =
770	<	new AssertionFailedError("unexpected exception: " + t);
771	<	afe.initCause(t);
772	<	throw afe;
773	<	}
956	>	else
957	>	throw new AssertionError("unexpected exception: " + t, t);
958		}
959
960		/**
#	Line 838 | Line 1022 | public class JSR166TestCase extends Test
1022		}};
1023		}
1024
1025	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1026	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1027	+	}
1028	+
1029	+	Runnable releaser(final AtomicBoolean flag) {
1030	+	return new Runnable() { public void run() { flag.set(true); }};
1031	+	}
1032	+
1033		/**
1034		* Waits out termination of a thread pool or fails doing so.
1035		*/
#	Line 861 | Line 1053 | public class JSR166TestCase extends Test
1053		}
1054		}
1055
1056	<	/** Like Runnable, but with the freedom to throw anything */
1056	>	/**
1057	>	* Like Runnable, but with the freedom to throw anything.
1058	>	* junit folks had the same idea:
1059	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1060	>	*/
1061		interface Action { public void run() throws Throwable; }
1062
1063		/**
#	Line 892 | Line 1088 | public class JSR166TestCase extends Test
1088		* Uninteresting threads are filtered out.
1089		*/
1090		static void dumpTestThreads() {
1091	+	SecurityManager sm = System.getSecurityManager();
1092	+	if (sm != null) {
1093	+	try {
1094	+	System.setSecurityManager(null);
1095	+	} catch (SecurityException giveUp) {
1096	+	return;
1097	+	}
1098	+	}
1099	+
1100		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1101		System.err.println("------ stacktrace dump start ------");
1102		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1103	<	String name = info.getThreadName();
1103	>	final String name = info.getThreadName();
1104	>	String lockName;
1105		if ("Signal Dispatcher".equals(name))
1106		continue;
1107		if ("Reference Handler".equals(name)
1108	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1108	>	&& (lockName = info.getLockName()) != null
1109	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1110		continue;
1111		if ("Finalizer".equals(name)
1112	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1112	>	&& (lockName = info.getLockName()) != null
1113	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1114		continue;
1115		if ("checkForWedgedTest".equals(name))
1116		continue;
1117		System.err.print(info);
1118		}
1119		System.err.println("------ stacktrace dump end ------");
912	–	}
913	–
914	–	/**
915	–	* Checks that thread does not terminate within the default
916	–	* millisecond delay of {@code timeoutMillis()}.
917	–	*/
918	–	void assertThreadStaysAlive(Thread thread) {
919	–	assertThreadStaysAlive(thread, timeoutMillis());
920	–	}
921	–
922	–	/**
923	–	* Checks that thread does not terminate within the given millisecond delay.
924	–	*/
925	–	void assertThreadStaysAlive(Thread thread, long millis) {
926	–	try {
927	–	// No need to optimize the failing case via Thread.join.
928	–	delay(millis);
929	–	assertTrue(thread.isAlive());
930	–	} catch (InterruptedException fail) {
931	–	threadFail("Unexpected InterruptedException");
932	–	}
933	–	}
1120
1121	<	/**
936	<	* Checks that the threads do not terminate within the default
937	<	* millisecond delay of {@code timeoutMillis()}.
938	<	*/
939	<	void assertThreadsStayAlive(Thread... threads) {
940	<	assertThreadsStayAlive(timeoutMillis(), threads);
1121	>	if (sm != null) System.setSecurityManager(sm);
1122		}
1123
1124		/**
1125	<	* Checks that the threads do not terminate within the given millisecond delay.
1125	>	* Checks that thread eventually enters the expected blocked thread state.
1126		*/
1127	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1128	<	try {
1129	<	// No need to optimize the failing case via Thread.join.
1130	<	delay(millis);
1131	<	for (Thread thread : threads)
1132	<	assertTrue(thread.isAlive());
1133	<	} catch (InterruptedException fail) {
1134	<	threadFail("Unexpected InterruptedException");
1127	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1128	>	// always sleep at least 1 ms, with high probability avoiding
1129	>	// transitory states
1130	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1131	>	try { delay(1); }
1132	>	catch (InterruptedException fail) {
1133	>	throw new AssertionError("Unexpected InterruptedException", fail);
1134	>	}
1135	>	Thread.State s = thread.getState();
1136	>	if (s == expected)
1137	>	return;
1138	>	else if (s == Thread.State.TERMINATED)
1139	>	fail("Unexpected thread termination");
1140		}
1141	+	fail("timed out waiting for thread to enter thread state " + expected);
1142		}
1143
1144		/**
#	Line 992 | Line 1179 | public class JSR166TestCase extends Test
1179		}
1180
1181		/**
1182	+	* The maximum number of consecutive spurious wakeups we should
1183	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1184	+	*/
1185	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1186	+
1187	+	/**
1188		* The number of elements to place in collections, arrays, etc.
1189		*/
1190		public static final int SIZE = 20;
#	Line 1095 | Line 1288 | public class JSR166TestCase extends Test
1288		}
1289		public void refresh() {}
1290		public String toString() {
1291	<	List<Permission> ps = new ArrayList<Permission>();
1291	>	List<Permission> ps = new ArrayList<>();
1292		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1293		ps.add(e.nextElement());
1294		return "AdjustablePolicy with permissions " + ps;
#	Line 1123 | Line 1316 | public class JSR166TestCase extends Test
1316
1317		/**
1318		* Sleeps until the given time has elapsed.
1319	<	* Throws AssertionFailedError if interrupted.
1319	>	* Throws AssertionError if interrupted.
1320		*/
1321	<	void sleep(long millis) {
1321	>	static void sleep(long millis) {
1322		try {
1323		delay(millis);
1324		} catch (InterruptedException fail) {
1325	<	AssertionFailedError afe =
1133	<	new AssertionFailedError("Unexpected InterruptedException");
1134	<	afe.initCause(fail);
1135	<	throw afe;
1325	>	throw new AssertionError("Unexpected InterruptedException", fail);
1326		}
1327		}
1328
1329		/**
1330		* Spin-waits up to the specified number of milliseconds for the given
1331		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1332	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1333		*/
1334	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1335	<	long startTime = System.nanoTime();
1336	<	for (;;) {
1337	<	Thread.State s = thread.getState();
1338	<	if (s == Thread.State.BLOCKED ||
1339	<	s == Thread.State.WAITING ||
1340	<	s == Thread.State.TIMED_WAITING)
1341	<	return;
1342	<	else if (s == Thread.State.TERMINATED)
1334	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1335	>	Callable<Boolean> waitingForGodot) {
1336	>	for (long startTime = 0L;;) {
1337	>	switch (thread.getState()) {
1338	>	default: break;
1339	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1340	>	try {
1341	>	if (waitingForGodot == null || waitingForGodot.call())
1342	>	return;
1343	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1344	>	break;
1345	>	case TERMINATED:
1346		fail("Unexpected thread termination");
1347	+	}
1348	+
1349	+	if (startTime == 0L)
1350	+	startTime = System.nanoTime();
1351		else if (millisElapsedSince(startTime) > timeoutMillis) {
1352	<	threadAssertTrue(thread.isAlive());
1353	<	return;
1352	>	assertTrue(thread.isAlive());
1353	>	if (waitingForGodot == null
1354	>	|| thread.getState() == Thread.State.RUNNABLE)
1355	>	fail("timed out waiting for thread to enter wait state");
1356	>	else
1357	>	fail("timed out waiting for condition, thread state="
1358	>	+ thread.getState());
1359		}
1360		Thread.yield();
1361		}
1362		}
1363
1364		/**
1365	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1366	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1365	>	* Spin-waits up to the specified number of milliseconds for the given
1366	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1367	>	*/
1368	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1369	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1370	>	}
1371	>
1372	>	/**
1373	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1374	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1375		*/
1376		void waitForThreadToEnterWaitState(Thread thread) {
1377	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1377	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1378	>	}
1379	>
1380	>	/**
1381	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1382	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1383	>	* and additionally satisfy the given condition.
1384	>	*/
1385	>	void waitForThreadToEnterWaitState(Thread thread,
1386	>	Callable<Boolean> waitingForGodot) {
1387	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1388	>	}
1389	>
1390	>	/**
1391	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1392	>	* be interrupted.  Clears the interrupt status before returning.
1393	>	*/
1394	>	void awaitInterrupted() {
1395	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1396	>	if (startTime == 0L)
1397	>	startTime = System.nanoTime();
1398	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1399	>	fail("timed out waiting for thread interrupt");
1400	>	Thread.yield();
1401	>	}
1402		}
1403
1404		/**
#	Line 1175 | Line 1410 | public class JSR166TestCase extends Test
1410		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1411		}
1412
1178	–	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1179	–	//         long startTime = System.nanoTime();
1180	–	//         try {
1181	–	//             r.run();
1182	–	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1183	–	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1184	–	//             throw new AssertionFailedError("did not return promptly");
1185	–	//     }
1186	–
1187	–	//     void assertTerminatesPromptly(Runnable r) {
1188	–	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1189	–	//     }
1190	–
1413		/**
1414		* Checks that timed f.get() returns the expected value, and does not
1415		* wait for the timeout to elapse before returning.
1416		*/
1417		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1418		long startTime = System.nanoTime();
1419	+	T actual = null;
1420		try {
1421	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1421	>	actual = f.get(timeoutMillis, MILLISECONDS);
1422		} catch (Throwable fail) { threadUnexpectedException(fail); }
1423	+	assertEquals(expectedValue, actual);
1424		if (millisElapsedSince(startTime) > timeoutMillis/2)
1425	<	throw new AssertionFailedError("timed get did not return promptly");
1425	>	throw new AssertionError("timed get did not return promptly");
1426		}
1427
1428		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1220 | Line 1444 | public class JSR166TestCase extends Test
1444		* to terminate (using {@link Thread#join(long)}), else interrupts
1445		* the thread (in the hope that it may terminate later) and fails.
1446		*/
1447	<	void awaitTermination(Thread t, long timeoutMillis) {
1447	>	void awaitTermination(Thread thread, long timeoutMillis) {
1448		try {
1449	<	t.join(timeoutMillis);
1449	>	thread.join(timeoutMillis);
1450		} catch (InterruptedException fail) {
1451		threadUnexpectedException(fail);
1452	<	} finally {
1453	<	if (t.getState() != Thread.State.TERMINATED) {
1454	<	t.interrupt();
1455	<	threadFail("timed out waiting for thread to terminate");
1452	>	}
1453	>	if (thread.getState() != Thread.State.TERMINATED) {
1454	>	String detail = String.format(
1455	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1456	>	thread, thread.getState());
1457	>	try {
1458	>	threadFail(detail);
1459	>	} finally {
1460	>	// Interrupt thread __after__ having reported its stack trace
1461	>	thread.interrupt();
1462		}
1463		}
1464		}
#	Line 1256 | Line 1486 | public class JSR166TestCase extends Test
1486		}
1487		}
1488
1259	–	public abstract class RunnableShouldThrow implements Runnable {
1260	–	protected abstract void realRun() throws Throwable;
1261	–
1262	–	final Class<?> exceptionClass;
1263	–
1264	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1265	–	this.exceptionClass = exceptionClass;
1266	–	}
1267	–
1268	–	public final void run() {
1269	–	try {
1270	–	realRun();
1271	–	threadShouldThrow(exceptionClass.getSimpleName());
1272	–	} catch (Throwable t) {
1273	–	if (! exceptionClass.isInstance(t))
1274	–	threadUnexpectedException(t);
1275	–	}
1276	–	}
1277	–	}
1278	–
1489		public abstract class ThreadShouldThrow extends Thread {
1490		protected abstract void realRun() throws Throwable;
1491
#	Line 1288 | Line 1498 | public class JSR166TestCase extends Test
1498		public final void run() {
1499		try {
1500		realRun();
1291	–	threadShouldThrow(exceptionClass.getSimpleName());
1501		} catch (Throwable t) {
1502		if (! exceptionClass.isInstance(t))
1503		threadUnexpectedException(t);
1504	+	return;
1505		}
1506	+	threadShouldThrow(exceptionClass.getSimpleName());
1507		}
1508		}
1509
#	Line 1302 | Line 1513 | public class JSR166TestCase extends Test
1513		public final void run() {
1514		try {
1515		realRun();
1305	–	threadShouldThrow("InterruptedException");
1516		} catch (InterruptedException success) {
1517		threadAssertFalse(Thread.interrupted());
1518	+	return;
1519		} catch (Throwable fail) {
1520		threadUnexpectedException(fail);
1521		}
1522	+	threadShouldThrow("InterruptedException");
1523		}
1524		}
1525
#	Line 1319 | Line 1531 | public class JSR166TestCase extends Test
1531		return realCall();
1532		} catch (Throwable fail) {
1533		threadUnexpectedException(fail);
1322	–	return null;
1323	–	}
1324	–	}
1325	–	}
1326	–
1327	–	public abstract class CheckedInterruptedCallable<T>
1328	–	implements Callable<T> {
1329	–	protected abstract T realCall() throws Throwable;
1330	–
1331	–	public final T call() {
1332	–	try {
1333	–	T result = realCall();
1334	–	threadShouldThrow("InterruptedException");
1335	–	return result;
1336	–	} catch (InterruptedException success) {
1337	–	threadAssertFalse(Thread.interrupted());
1338	–	} catch (Throwable fail) {
1339	–	threadUnexpectedException(fail);
1534		}
1535	<	return null;
1535	>	throw new AssertionError("unreached");
1536		}
1537		}
1538
#	Line 1394 | Line 1588 | public class JSR166TestCase extends Test
1588		return new LatchAwaiter(latch);
1589		}
1590
1591	<	public void await(CountDownLatch latch) {
1591	>	public void await(CountDownLatch latch, long timeoutMillis) {
1592	>	boolean timedOut = false;
1593		try {
1594	<	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1400	<	fail("timed out waiting for CountDownLatch for "
1401	<	+ (LONG_DELAY_MS/1000) + " sec");
1594	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1595		} catch (Throwable fail) {
1596		threadUnexpectedException(fail);
1597		}
1598	+	if (timedOut)
1599	+	fail("timed out waiting for CountDownLatch for "
1600	+	+ (timeoutMillis/1000) + " sec");
1601	+	}
1602	+
1603	+	public void await(CountDownLatch latch) {
1604	+	await(latch, LONG_DELAY_MS);
1605		}
1606
1607		public void await(Semaphore semaphore) {
1608	+	boolean timedOut = false;
1609	+	try {
1610	+	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1611	+	} catch (Throwable fail) {
1612	+	threadUnexpectedException(fail);
1613	+	}
1614	+	if (timedOut)
1615	+	fail("timed out waiting for Semaphore for "
1616	+	+ (LONG_DELAY_MS/1000) + " sec");
1617	+	}
1618	+
1619	+	public void await(CyclicBarrier barrier) {
1620		try {
1621	<	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1410	<	fail("timed out waiting for Semaphore for "
1411	<	+ (LONG_DELAY_MS/1000) + " sec");
1621	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1622		} catch (Throwable fail) {
1623		threadUnexpectedException(fail);
1624		}
#	Line 1428 | Line 1638 | public class JSR166TestCase extends Test
1638		//         long startTime = System.nanoTime();
1639		//         while (!flag.get()) {
1640		//             if (millisElapsedSince(startTime) > timeoutMillis)
1641	<	//                 throw new AssertionFailedError("timed out");
1641	>	//                 throw new AssertionError("timed out");
1642		//             Thread.yield();
1643		//         }
1644		//     }
#	Line 1437 | Line 1647 | public class JSR166TestCase extends Test
1647		public String call() { throw new NullPointerException(); }
1648		}
1649
1440	–	public static class CallableOne implements Callable<Integer> {
1441	–	public Integer call() { return one; }
1442	–	}
1443	–
1444	–	public class ShortRunnable extends CheckedRunnable {
1445	–	protected void realRun() throws Throwable {
1446	–	delay(SHORT_DELAY_MS);
1447	–	}
1448	–	}
1449	–
1450	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1451	–	protected void realRun() throws InterruptedException {
1452	–	delay(SHORT_DELAY_MS);
1453	–	}
1454	–	}
1455	–
1456	–	public class SmallRunnable extends CheckedRunnable {
1457	–	protected void realRun() throws Throwable {
1458	–	delay(SMALL_DELAY_MS);
1459	–	}
1460	–	}
1461	–
1462	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1463	–	protected void realRun() {
1464	–	try {
1465	–	delay(SMALL_DELAY_MS);
1466	–	} catch (InterruptedException ok) {}
1467	–	}
1468	–	}
1469	–
1470	–	public class SmallCallable extends CheckedCallable {
1471	–	protected Object realCall() throws InterruptedException {
1472	–	delay(SMALL_DELAY_MS);
1473	–	return Boolean.TRUE;
1474	–	}
1475	–	}
1476	–
1477	–	public class MediumRunnable extends CheckedRunnable {
1478	–	protected void realRun() throws Throwable {
1479	–	delay(MEDIUM_DELAY_MS);
1480	–	}
1481	–	}
1482	–
1483	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1484	–	protected void realRun() throws InterruptedException {
1485	–	delay(MEDIUM_DELAY_MS);
1486	–	}
1487	–	}
1488	–
1650		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1651		return new CheckedRunnable() {
1652		protected void realRun() {
#	Line 1495 | Line 1656 | public class JSR166TestCase extends Test
1656		}};
1657		}
1658
1498	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1499	–	protected void realRun() {
1500	–	try {
1501	–	delay(MEDIUM_DELAY_MS);
1502	–	} catch (InterruptedException ok) {}
1503	–	}
1504	–	}
1505	–
1506	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1507	–	protected void realRun() {
1508	–	try {
1509	–	delay(LONG_DELAY_MS);
1510	–	} catch (InterruptedException ok) {}
1511	–	}
1512	–	}
1513	–
1659		/**
1660		* For use as ThreadFactory in constructors
1661		*/
#	Line 1524 | Line 1669 | public class JSR166TestCase extends Test
1669		boolean isDone();
1670		}
1671
1527	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1528	–	return new TrackedRunnable() {
1529	–	private volatile boolean done = false;
1530	–	public boolean isDone() { return done; }
1531	–	public void run() {
1532	–	try {
1533	–	delay(timeoutMillis);
1534	–	done = true;
1535	–	} catch (InterruptedException ok) {}
1536	–	}
1537	–	};
1538	–	}
1539	–
1540	–	public static class TrackedShortRunnable implements Runnable {
1541	–	public volatile boolean done = false;
1542	–	public void run() {
1543	–	try {
1544	–	delay(SHORT_DELAY_MS);
1545	–	done = true;
1546	–	} catch (InterruptedException ok) {}
1547	–	}
1548	–	}
1549	–
1550	–	public static class TrackedSmallRunnable implements Runnable {
1551	–	public volatile boolean done = false;
1552	–	public void run() {
1553	–	try {
1554	–	delay(SMALL_DELAY_MS);
1555	–	done = true;
1556	–	} catch (InterruptedException ok) {}
1557	–	}
1558	–	}
1559	–
1560	–	public static class TrackedMediumRunnable implements Runnable {
1561	–	public volatile boolean done = false;
1562	–	public void run() {
1563	–	try {
1564	–	delay(MEDIUM_DELAY_MS);
1565	–	done = true;
1566	–	} catch (InterruptedException ok) {}
1567	–	}
1568	–	}
1569	–
1570	–	public static class TrackedLongRunnable implements Runnable {
1571	–	public volatile boolean done = false;
1572	–	public void run() {
1573	–	try {
1574	–	delay(LONG_DELAY_MS);
1575	–	done = true;
1576	–	} catch (InterruptedException ok) {}
1577	–	}
1578	–	}
1579	–
1672		public static class TrackedNoOpRunnable implements Runnable {
1673		public volatile boolean done = false;
1674		public void run() {
#	Line 1584 | Line 1676 | public class JSR166TestCase extends Test
1676		}
1677		}
1678
1587	–	public static class TrackedCallable implements Callable {
1588	–	public volatile boolean done = false;
1589	–	public Object call() {
1590	–	try {
1591	–	delay(SMALL_DELAY_MS);
1592	–	done = true;
1593	–	} catch (InterruptedException ok) {}
1594	–	return Boolean.TRUE;
1595	–	}
1596	–	}
1597	–
1679		/**
1680		* Analog of CheckedRunnable for RecursiveAction
1681		*/
#	Line 1621 | Line 1702 | public class JSR166TestCase extends Test
1702		return realCompute();
1703		} catch (Throwable fail) {
1704		threadUnexpectedException(fail);
1624	–	return null;
1705		}
1706	+	throw new AssertionError("unreached");
1707		}
1708		}
1709
#	Line 1636 | Line 1717 | public class JSR166TestCase extends Test
1717
1718		/**
1719		* A CyclicBarrier that uses timed await and fails with
1720	<	* AssertionFailedErrors instead of throwing checked exceptions.
1720	>	* AssertionErrors instead of throwing checked exceptions.
1721		*/
1722	<	public class CheckedBarrier extends CyclicBarrier {
1722	>	public static class CheckedBarrier extends CyclicBarrier {
1723		public CheckedBarrier(int parties) { super(parties); }
1724
1725		public int await() {
1726		try {
1727		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1728		} catch (TimeoutException timedOut) {
1729	<	throw new AssertionFailedError("timed out");
1729	>	throw new AssertionError("timed out");
1730		} catch (Exception fail) {
1731	<	AssertionFailedError afe =
1651	<	new AssertionFailedError("Unexpected exception: " + fail);
1652	<	afe.initCause(fail);
1653	<	throw afe;
1731	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1732		}
1733		}
1734		}
#	Line 1661 | Line 1739 | public class JSR166TestCase extends Test
1739		assertEquals(0, q.size());
1740		assertNull(q.peek());
1741		assertNull(q.poll());
1742	<	assertNull(q.poll(0, MILLISECONDS));
1742	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1743		assertEquals(q.toString(), "[]");
1744		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1745		assertFalse(q.iterator().hasNext());
#	Line 1702 | Line 1780 | public class JSR166TestCase extends Test
1780		}
1781		}
1782
1783	+	void assertImmutable(Object o) {
1784	+	if (o instanceof Collection) {
1785	+	assertThrows(
1786	+	UnsupportedOperationException.class,
1787	+	() -> ((Collection) o).add(null));
1788	+	}
1789	+	}
1790	+
1791		@SuppressWarnings("unchecked")
1792		<T> T serialClone(T o) {
1793	+	T clone = null;
1794		try {
1795		ObjectInputStream ois = new ObjectInputStream
1796		(new ByteArrayInputStream(serialBytes(o)));
1797	<	T clone = (T) ois.readObject();
1711	<	assertSame(o.getClass(), clone.getClass());
1712	<	return clone;
1797	>	clone = (T) ois.readObject();
1798		} catch (Throwable fail) {
1799		threadUnexpectedException(fail);
1800	+	}
1801	+	if (o == clone) assertImmutable(o);
1802	+	else assertSame(o.getClass(), clone.getClass());
1803	+	return clone;
1804	+	}
1805	+
1806	+	/**
1807	+	* A version of serialClone that leaves error handling (for
1808	+	* e.g. NotSerializableException) up to the caller.
1809	+	*/
1810	+	@SuppressWarnings("unchecked")
1811	+	<T> T serialClonePossiblyFailing(T o)
1812	+	throws ReflectiveOperationException, java.io.IOException {
1813	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1814	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1815	+	oos.writeObject(o);
1816	+	oos.flush();
1817	+	oos.close();
1818	+	ObjectInputStream ois = new ObjectInputStream
1819	+	(new ByteArrayInputStream(bos.toByteArray()));
1820	+	T clone = (T) ois.readObject();
1821	+	if (o == clone) assertImmutable(o);
1822	+	else assertSame(o.getClass(), clone.getClass());
1823	+	return clone;
1824	+	}
1825	+
1826	+	/**
1827	+	* If o implements Cloneable and has a public clone method,
1828	+	* returns a clone of o, else null.
1829	+	*/
1830	+	@SuppressWarnings("unchecked")
1831	+	<T> T cloneableClone(T o) {
1832	+	if (!(o instanceof Cloneable)) return null;
1833	+	final T clone;
1834	+	try {
1835	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1836	+	} catch (NoSuchMethodException ok) {
1837		return null;
1838	+	} catch (ReflectiveOperationException unexpected) {
1839	+	throw new Error(unexpected);
1840		}
1841	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1842	+	assertSame(o.getClass(), clone.getClass());
1843	+	return clone;
1844		}
1845
1846		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1847	<	Runnable... throwingActions) {
1848	<	for (Runnable throwingAction : throwingActions) {
1847	>	Action... throwingActions) {
1848	>	for (Action throwingAction : throwingActions) {
1849		boolean threw = false;
1850		try { throwingAction.run(); }
1851		catch (Throwable t) {
1852		threw = true;
1853	<	if (!expectedExceptionClass.isInstance(t)) {
1854	<	AssertionFailedError afe =
1855	<	new AssertionFailedError
1856	<	("Expected " + expectedExceptionClass.getName() +
1857	<	", got " + t.getClass().getName());
1731	<	afe.initCause(t);
1732	<	threadUnexpectedException(afe);
1733	<	}
1853	>	if (!expectedExceptionClass.isInstance(t))
1854	>	throw new AssertionError(
1855	>	"Expected " + expectedExceptionClass.getName() +
1856	>	", got " + t.getClass().getName(),
1857	>	t);
1858		}
1859		if (!threw)
1860		shouldThrow(expectedExceptionClass.getName());
#	Line 1744 | Line 1868 | public class JSR166TestCase extends Test
1868		} catch (NoSuchElementException success) {}
1869		assertFalse(it.hasNext());
1870		}
1871	+
1872	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1873	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1874	+	}
1875	+
1876	+	public Runnable runnableThrowing(final RuntimeException ex) {
1877	+	return new Runnable() { public void run() { throw ex; }};
1878	+	}
1879	+
1880	+	/** A reusable thread pool to be shared by tests. */
1881	+	static final ExecutorService cachedThreadPool =
1882	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1883	+	1000L, MILLISECONDS,
1884	+	new SynchronousQueue<Runnable>());
1885	+
1886	+	static <T> void shuffle(T[] array) {
1887	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1888	+	}
1889	+
1890	+	/**
1891	+	* Returns the same String as would be returned by {@link
1892	+	* Object#toString}, whether or not the given object's class
1893	+	* overrides toString().
1894	+	*
1895	+	* @see System#identityHashCode
1896	+	*/
1897	+	static String identityString(Object x) {
1898	+	return x.getClass().getName()
1899	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1900	+	}
1901	+
1902	+	// --- Shared assertions for Executor tests ---
1903	+
1904	+	/**
1905	+	* Returns maximum number of tasks that can be submitted to given
1906	+	* pool (with bounded queue) before saturation (when submission
1907	+	* throws RejectedExecutionException).
1908	+	*/
1909	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1910	+	BlockingQueue<Runnable> q = pool.getQueue();
1911	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1912	+	}
1913	+
1914	+	@SuppressWarnings("FutureReturnValueIgnored")
1915	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1916	+	try {
1917	+	e.execute((Runnable) null);
1918	+	shouldThrow();
1919	+	} catch (NullPointerException success) {}
1920	+
1921	+	if (! (e instanceof ExecutorService)) return;
1922	+	ExecutorService es = (ExecutorService) e;
1923	+	try {
1924	+	es.submit((Runnable) null);
1925	+	shouldThrow();
1926	+	} catch (NullPointerException success) {}
1927	+	try {
1928	+	es.submit((Runnable) null, Boolean.TRUE);
1929	+	shouldThrow();
1930	+	} catch (NullPointerException success) {}
1931	+	try {
1932	+	es.submit((Callable) null);
1933	+	shouldThrow();
1934	+	} catch (NullPointerException success) {}
1935	+
1936	+	if (! (e instanceof ScheduledExecutorService)) return;
1937	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1938	+	try {
1939	+	ses.schedule((Runnable) null,
1940	+	randomTimeout(), randomTimeUnit());
1941	+	shouldThrow();
1942	+	} catch (NullPointerException success) {}
1943	+	try {
1944	+	ses.schedule((Callable) null,
1945	+	randomTimeout(), randomTimeUnit());
1946	+	shouldThrow();
1947	+	} catch (NullPointerException success) {}
1948	+	try {
1949	+	ses.scheduleAtFixedRate((Runnable) null,
1950	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1951	+	shouldThrow();
1952	+	} catch (NullPointerException success) {}
1953	+	try {
1954	+	ses.scheduleWithFixedDelay((Runnable) null,
1955	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1956	+	shouldThrow();
1957	+	} catch (NullPointerException success) {}
1958	+	}
1959	+
1960	+	void setRejectedExecutionHandler(
1961	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1962	+	p.setRejectedExecutionHandler(handler);
1963	+	assertSame(handler, p.getRejectedExecutionHandler());
1964	+	}
1965	+
1966	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1967	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1968	+	final long savedTaskCount = p.getTaskCount();
1969	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1970	+	final int savedQueueSize = p.getQueue().size();
1971	+	final boolean stock = (p.getClass().getClassLoader() == null);
1972	+
1973	+	Runnable r = () -> {};
1974	+	Callable<Boolean> c = () -> Boolean.TRUE;
1975	+
1976	+	class Recorder implements RejectedExecutionHandler {
1977	+	public volatile Runnable r = null;
1978	+	public volatile ThreadPoolExecutor p = null;
1979	+	public void reset() { r = null; p = null; }
1980	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1981	+	assertNull(this.r);
1982	+	assertNull(this.p);
1983	+	this.r = r;
1984	+	this.p = p;
1985	+	}
1986	+	}
1987	+
1988	+	// check custom handler is invoked exactly once per task
1989	+	Recorder recorder = new Recorder();
1990	+	setRejectedExecutionHandler(p, recorder);
1991	+	for (int i = 2; i--> 0; ) {
1992	+	recorder.reset();
1993	+	p.execute(r);
1994	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1995	+	assertSame(r, recorder.r);
1996	+	assertSame(p, recorder.p);
1997	+
1998	+	recorder.reset();
1999	+	assertFalse(p.submit(r).isDone());
2000	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2001	+	assertSame(p, recorder.p);
2002	+
2003	+	recorder.reset();
2004	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2005	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2006	+	assertSame(p, recorder.p);
2007	+
2008	+	recorder.reset();
2009	+	assertFalse(p.submit(c).isDone());
2010	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2011	+	assertSame(p, recorder.p);
2012	+
2013	+	if (p instanceof ScheduledExecutorService) {
2014	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2015	+	ScheduledFuture<?> future;
2016	+
2017	+	recorder.reset();
2018	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2019	+	assertFalse(future.isDone());
2020	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2021	+	assertSame(p, recorder.p);
2022	+
2023	+	recorder.reset();
2024	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2025	+	assertFalse(future.isDone());
2026	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2027	+	assertSame(p, recorder.p);
2028	+
2029	+	recorder.reset();
2030	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2031	+	assertFalse(future.isDone());
2032	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2033	+	assertSame(p, recorder.p);
2034	+
2035	+	recorder.reset();
2036	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2037	+	assertFalse(future.isDone());
2038	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2039	+	assertSame(p, recorder.p);
2040	+	}
2041	+	}
2042	+
2043	+	// Checking our custom handler above should be sufficient, but
2044	+	// we add some integration tests of standard handlers.
2045	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2046	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2047	+
2048	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2049	+	try {
2050	+	p.execute(setThread);
2051	+	shouldThrow();
2052	+	} catch (RejectedExecutionException success) {}
2053	+	assertNull(thread.get());
2054	+
2055	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2056	+	p.execute(setThread);
2057	+	assertNull(thread.get());
2058	+
2059	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2060	+	p.execute(setThread);
2061	+	if (p.isShutdown())
2062	+	assertNull(thread.get());
2063	+	else
2064	+	assertSame(Thread.currentThread(), thread.get());
2065	+
2066	+	setRejectedExecutionHandler(p, savedHandler);
2067	+
2068	+	// check that pool was not perturbed by handlers
2069	+	assertEquals(savedTaskCount, p.getTaskCount());
2070	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2071	+	assertEquals(savedQueueSize, p.getQueue().size());
2072	+	}
2073	+
2074	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2075	+	assertEquals(x, y);
2076	+	assertEquals(y, x);
2077	+	assertEquals(x.isEmpty(), y.isEmpty());
2078	+	assertEquals(x.size(), y.size());
2079	+	if (x instanceof List) {
2080	+	assertEquals(x.toString(), y.toString());
2081	+	}
2082	+	if (x instanceof List || x instanceof Set) {
2083	+	assertEquals(x.hashCode(), y.hashCode());
2084	+	}
2085	+	if (x instanceof List || x instanceof Deque) {
2086	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2087	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2088	+	y.toArray(new Object[0])));
2089	+	}
2090	+	}
2091	+
2092	+	/**
2093	+	* A weaker form of assertCollectionsEquals which does not insist
2094	+	* that the two collections satisfy Object#equals(Object), since
2095	+	* they may use identity semantics as Deques do.
2096	+	*/
2097	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2098	+	if (x instanceof List || x instanceof Set)
2099	+	assertCollectionsEquals(x, y);
2100	+	else {
2101	+	assertEquals(x.isEmpty(), y.isEmpty());
2102	+	assertEquals(x.size(), y.size());
2103	+	assertEquals(new HashSet(x), new HashSet(y));
2104	+	if (x instanceof Deque) {
2105	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2106	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2107	+	y.toArray(new Object[0])));
2108	+	}
2109	+	}
2110	+	}
2111		}

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