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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.155 by jsr166, Sat Oct 3 19:59:49 2015 UTC vs.
Revision 1.256 by jsr166, Sun Aug 11 22:29:26 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;
46
47		import java.io.ByteArrayInputStream;
#	Line 28 | 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;
103		import java.util.regex.Pattern;
104
56	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107		import junit.framework.TestResult;
#	Line 69 | 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 108 | 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
112	<	* 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 172 | 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 187 | Line 280 | public class JSR166TestCase extends Test
280		return (regex == null) ? null : Pattern.compile(regex);
281		}
282
283	+	// Instrumentation to debug very rare, but very annoying hung test runs.
284	+	static volatile TestCase currentTestCase;
285	+	// static volatile int currentRun = 0;
286	+	static {
287	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
288	+	// Avoid spurious reports with enormous runsPerTest.
289	+	// A single test case run should never take more than 1 second.
290	+	// But let's cap it at the high end too ...
291	+	final int 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; }
297	+	if (lastTestCase == currentTestCase) {
298	+	System.err.printf(
299	+	"Looks like we're stuck running test: %s%n",
300	+	lastTestCase);
301	+	//                     System.err.printf(
302	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
303	+	//                         lastTestCase, currentRun, runsPerTest);
304	+	//                     System.err.println("availableProcessors=" +
305	+	//                         Runtime.getRuntime().availableProcessors());
306	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
307	+	dumpTestThreads();
308	+	// one stack dump is probably enough; more would be spam
309	+	break;
310	+	}
311	+	lastTestCase = currentTestCase;
312	+	}}};
313	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
314	+	thread.setDaemon(true);
315	+	thread.start();
316	+	}
317	+
318	+	//     public static String cpuModel() {
319	+	//         try {
320	+	//             java.util.regex.Matcher matcher
321	+	//               = Pattern.compile("model name\\s*: (.*)")
322	+	//                 .matcher(new String(
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; }
328	+	//     }
329	+
330		public void runBare() throws Throwable {
331	+	currentTestCase = this;
332		if (methodFilter == null
333		|| methodFilter.matcher(toString()).find())
334		super.runBare();
#	Line 195 | Line 336 | public class JSR166TestCase extends Test
336
337		protected void runTest() throws Throwable {
338		for (int i = 0; i < runsPerTest; i++) {
339	+	// currentRun = i;
340		if (profileTests)
341		runTestProfiled();
342		else
#	Line 223 | 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 234 | 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 260 | 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",
264	<	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 286 | 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 318 | 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 340 | 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 347 | 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 368 | 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 394 | 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 405 | 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 432 | 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 449 | 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 470 | 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 a random boolean; a "coin flip".
689	+	*/
690	+	static boolean randomBoolean() {
691	+	return ThreadLocalRandom.current().nextBoolean();
692	+	}
693	+
694		/**
695	<	* Returns the shortest timed delay. This could
696	<	* be reimplemented to use for example a Property.
695	>	* Returns the shortest timed delay. This can be scaled up for
696	>	* slow machines using the jsr166.delay.factor system property,
697	>	* or via jtreg's -timeoutFactor: flag.
698	>	* http://openjdk.java.net/jtreg/command-help.html
699		*/
700		protected long getShortDelay() {
701	<	return 50;
701	>	return (long) (50 * delayFactor);
702		}
703
704		/**
#	Line 488 | Line 711 | public class JSR166TestCase extends Test
711		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
712		}
713
714	+	private static final long TIMEOUT_DELAY_MS
715	+	= (long) (12.0 * Math.cbrt(delayFactor));
716	+
717		/**
718	<	* Returns a timeout in milliseconds to be used in tests that
719	<	* verify that operations block or time out.
718	>	* Returns a timeout in milliseconds to be used in tests that verify
719	>	* that operations block or time out.  We want this to be longer
720	>	* than the OS scheduling quantum, but not too long, so don't scale
721	>	* linearly with delayFactor; we use "crazy" cube root instead.
722		*/
723	<	long timeoutMillis() {
724	<	return SHORT_DELAY_MS / 4;
723	>	static long timeoutMillis() {
724	>	return TIMEOUT_DELAY_MS;
725		}
726
727		/**
#	Line 509 | Line 737 | public class JSR166TestCase extends Test
737		* The first exception encountered if any threadAssertXXX method fails.
738		*/
739		private final AtomicReference<Throwable> threadFailure
740	<	= new AtomicReference<Throwable>(null);
740	>	= new AtomicReference<>(null);
741
742		/**
743		* Records an exception so that it can be rethrown later in the test
#	Line 518 | Line 746 | public class JSR166TestCase extends Test
746		* the same test have no effect.
747		*/
748		public void threadRecordFailure(Throwable t) {
749	<	threadDump();
749	>	System.err.println(t);
750	>	dumpTestThreads();
751		threadFailure.compareAndSet(null, t);
752		}
753
#	Line 529 | Line 758 | public class JSR166TestCase extends Test
758		void tearDownFail(String format, Object... args) {
759		String msg = toString() + ": " + String.format(format, args);
760		System.err.println(msg);
761	<	threadDump();
762	<	throw new AssertionFailedError(msg);
761	>	dumpTestThreads();
762	>	throw new AssertionError(msg);
763		}
764
765		/**
#	Line 551 | Line 780 | public class JSR166TestCase extends Test
780		throw (RuntimeException) t;
781		else if (t instanceof Exception)
782		throw (Exception) t;
783	<	else {
784	<	AssertionFailedError afe =
556	<	new AssertionFailedError(t.toString());
557	<	afe.initCause(t);
558	<	throw afe;
559	<	}
783	>	else
784	>	throw new AssertionError(t.toString(), t);
785		}
786
787		if (Thread.interrupted())
#	Line 566 | Line 791 | public class JSR166TestCase extends Test
791		}
792
793		/**
794	<	* Finds missing try { ... } finally { joinPool(e); }
794	>	* Finds missing PoolCleaners
795		*/
796		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
797		Thread[] survivors = new Thread[7];
#	Line 590 | Line 815 | public class JSR166TestCase extends Test
815
816		/**
817		* Just like fail(reason), but additionally recording (using
818	<	* threadRecordFailure) any AssertionFailedError thrown, so that
819	<	* the current testcase will fail.
818	>	* threadRecordFailure) any AssertionError thrown, so that the
819	>	* current testcase will fail.
820		*/
821		public void threadFail(String reason) {
822		try {
823		fail(reason);
824	<	} catch (AssertionFailedError t) {
825	<	threadRecordFailure(t);
826	<	throw t;
824	>	} catch (AssertionError fail) {
825	>	threadRecordFailure(fail);
826	>	throw fail;
827		}
828		}
829
830		/**
831		* Just like assertTrue(b), 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 threadAssertTrue(boolean b) {
836		try {
837		assertTrue(b);
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 assertFalse(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 threadAssertFalse(boolean b) {
850		try {
851		assertFalse(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 assertNull(x), 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 threadAssertNull(Object x) {
864		try {
865		assertNull(x);
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 assertEquals(x, y), 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 threadAssertEquals(long x, long y) {
878		try {
879		assertEquals(x, y);
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(Object x, Object y) {
892		try {
893		assertEquals(x, y);
894	<	} catch (AssertionFailedError fail) {
894	>	} catch (AssertionError fail) {
895		threadRecordFailure(fail);
896		throw fail;
897		} catch (Throwable fail) {
#	Line 676 | Line 901 | public class JSR166TestCase extends Test
901
902		/**
903		* Just like assertSame(x, y), but additionally recording (using
904	<	* threadRecordFailure) any AssertionFailedError thrown, so that
905	<	* the current testcase will fail.
904	>	* threadRecordFailure) any AssertionError thrown, so that the
905	>	* current testcase will fail.
906		*/
907		public void threadAssertSame(Object x, Object y) {
908		try {
909		assertSame(x, y);
910	<	} catch (AssertionFailedError fail) {
910	>	} catch (AssertionError fail) {
911		threadRecordFailure(fail);
912		throw fail;
913		}
#	Line 704 | Line 929 | public class JSR166TestCase extends Test
929
930		/**
931		* Records the given exception using {@link #threadRecordFailure},
932	<	* then rethrows the exception, wrapping it in an
933	<	* AssertionFailedError if necessary.
932	>	* then rethrows the exception, wrapping it in an AssertionError
933	>	* if necessary.
934		*/
935		public void threadUnexpectedException(Throwable t) {
936		threadRecordFailure(t);
#	Line 714 | Line 939 | public class JSR166TestCase extends Test
939		throw (RuntimeException) t;
940		else if (t instanceof Error)
941		throw (Error) t;
942	<	else {
943	<	AssertionFailedError afe =
719	<	new AssertionFailedError("unexpected exception: " + t);
720	<	afe.initCause(t);
721	<	throw afe;
722	<	}
942	>	else
943	>	throw new AssertionError("unexpected exception: " + t, t);
944		}
945
946		/**
947		* Delays, via Thread.sleep, for the given millisecond delay, but
948		* if the sleep is shorter than specified, may re-sleep or yield
949	<	* until time elapses.
949	>	* until time elapses.  Ensures that the given time, as measured
950	>	* by System.nanoTime(), has elapsed.
951		*/
952		static void delay(long millis) throws InterruptedException {
953	<	long startTime = System.nanoTime();
954	<	long ns = millis * 1000 * 1000;
955	<	for (;;) {
953	>	long nanos = millis * (1000 * 1000);
954	>	final long wakeupTime = System.nanoTime() + nanos;
955	>	do {
956		if (millis > 0L)
957		Thread.sleep(millis);
958		else // too short to sleep
959		Thread.yield();
960	<	long d = ns - (System.nanoTime() - startTime);
961	<	if (d > 0L)
962	<	millis = d / (1000 * 1000);
741	<	else
742	<	break;
743	<	}
960	>	nanos = wakeupTime - System.nanoTime();
961	>	millis = nanos / (1000 * 1000);
962	>	} while (nanos >= 0L);
963		}
964
965		/**
966		* Allows use of try-with-resources with per-test thread pools.
967		*/
968	<	static class PoolCloser<T extends ExecutorService>
969	<	implements AutoCloseable {
970	<	public final T pool;
752	<	public PoolCloser(T pool) { this.pool = pool; }
968	>	class PoolCleaner implements AutoCloseable {
969	>	private final ExecutorService pool;
970	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
971		public void close() { joinPool(pool); }
972		}
973
974		/**
975	+	* An extension of PoolCleaner that has an action to release the pool.
976	+	*/
977	+	class PoolCleanerWithReleaser extends PoolCleaner {
978	+	private final Runnable releaser;
979	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
980	+	super(pool);
981	+	this.releaser = releaser;
982	+	}
983	+	public void close() {
984	+	try {
985	+	releaser.run();
986	+	} finally {
987	+	super.close();
988	+	}
989	+	}
990	+	}
991	+
992	+	PoolCleaner cleaner(ExecutorService pool) {
993	+	return new PoolCleaner(pool);
994	+	}
995	+
996	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
997	+	return new PoolCleanerWithReleaser(pool, releaser);
998	+	}
999	+
1000	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1001	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
1002	+	}
1003	+
1004	+	Runnable releaser(final CountDownLatch latch) {
1005	+	return new Runnable() { public void run() {
1006	+	do { latch.countDown(); }
1007	+	while (latch.getCount() > 0);
1008	+	}};
1009	+	}
1010	+
1011	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1012	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1013	+	}
1014	+
1015	+	Runnable releaser(final AtomicBoolean flag) {
1016	+	return new Runnable() { public void run() { flag.set(true); }};
1017	+	}
1018	+
1019	+	/**
1020		* Waits out termination of a thread pool or fails doing so.
1021		*/
1022	<	static void joinPool(ExecutorService pool) {
1022	>	void joinPool(ExecutorService pool) {
1023		try {
1024		pool.shutdown();
1025	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1026	<	fail("ExecutorService " + pool +
1027	<	" did not terminate in a timely manner");
1025	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1026	>	try {
1027	>	threadFail("ExecutorService " + pool +
1028	>	" did not terminate in a timely manner");
1029	>	} finally {
1030	>	// last resort, for the benefit of subsequent tests
1031	>	pool.shutdownNow();
1032	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1033	>	}
1034	>	}
1035		} catch (SecurityException ok) {
1036		// Allowed in case test doesn't have privs
1037		} catch (InterruptedException fail) {
1038	<	fail("Unexpected InterruptedException");
1038	>	threadFail("Unexpected InterruptedException");
1039		}
1040		}
1041
1042	<	/** Like Runnable, but with the freedom to throw anything */
1042	>	/**
1043	>	* Like Runnable, but with the freedom to throw anything.
1044	>	* junit folks had the same idea:
1045	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1046	>	*/
1047		interface Action { public void run() throws Throwable; }
1048
1049		/**
#	Line 778 | Line 1052 | public class JSR166TestCase extends Test
1052		* necessarily individually slow because they must block.
1053		*/
1054		void testInParallel(Action ... actions) {
1055	<	try (PoolCloser<ExecutorService> poolCloser
1056	<	= new PoolCloser<>(Executors.newCachedThreadPool())) {
783	<	ExecutorService pool = poolCloser.pool;
1055	>	ExecutorService pool = Executors.newCachedThreadPool();
1056	>	try (PoolCleaner cleaner = cleaner(pool)) {
1057		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1058		for (final Action action : actions)
1059		futures.add(pool.submit(new CheckedRunnable() {
#	Line 797 | Line 1070 | public class JSR166TestCase extends Test
1070		}
1071
1072		/**
1073	<	* A debugging tool to print all stack traces, as jstack does.
1073	>	* A debugging tool to print stack traces of most threads, as jstack does.
1074		* Uninteresting threads are filtered out.
1075		*/
1076	<	static void threadDump() {
1076	>	static void dumpTestThreads() {
1077	>	SecurityManager sm = System.getSecurityManager();
1078	>	if (sm != null) {
1079	>	try {
1080	>	System.setSecurityManager(null);
1081	>	} catch (SecurityException giveUp) {
1082	>	return;
1083	>	}
1084	>	}
1085	>
1086		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1087		System.err.println("------ stacktrace dump start ------");
1088		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1089	<	String name = info.getThreadName();
1089	>	final String name = info.getThreadName();
1090	>	String lockName;
1091		if ("Signal Dispatcher".equals(name))
1092		continue;
1093		if ("Reference Handler".equals(name)
1094	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1094	>	&& (lockName = info.getLockName()) != null
1095	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1096		continue;
1097		if ("Finalizer".equals(name)
1098	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1098	>	&& (lockName = info.getLockName()) != null
1099	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1100	>	continue;
1101	>	if ("checkForWedgedTest".equals(name))
1102		continue;
1103		System.err.print(info);
1104		}
1105		System.err.println("------ stacktrace dump end ------");
819	–	}
820	–
821	–	/**
822	–	* Checks that thread does not terminate within the default
823	–	* millisecond delay of {@code timeoutMillis()}.
824	–	*/
825	–	void assertThreadStaysAlive(Thread thread) {
826	–	assertThreadStaysAlive(thread, timeoutMillis());
827	–	}
828	–
829	–	/**
830	–	* Checks that thread does not terminate within the given millisecond delay.
831	–	*/
832	–	void assertThreadStaysAlive(Thread thread, long millis) {
833	–	try {
834	–	// No need to optimize the failing case via Thread.join.
835	–	delay(millis);
836	–	assertTrue(thread.isAlive());
837	–	} catch (InterruptedException fail) {
838	–	fail("Unexpected InterruptedException");
839	–	}
840	–	}
1106
1107	<	/**
843	<	* Checks that the threads do not terminate within the default
844	<	* millisecond delay of {@code timeoutMillis()}.
845	<	*/
846	<	void assertThreadsStayAlive(Thread... threads) {
847	<	assertThreadsStayAlive(timeoutMillis(), threads);
1107	>	if (sm != null) System.setSecurityManager(sm);
1108		}
1109
1110		/**
1111	<	* Checks that the threads do not terminate within the given millisecond delay.
1111	>	* Checks that thread eventually enters the expected blocked thread state.
1112		*/
1113	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1114	<	try {
1115	<	// No need to optimize the failing case via Thread.join.
1116	<	delay(millis);
1117	<	for (Thread thread : threads)
1118	<	assertTrue(thread.isAlive());
1119	<	} catch (InterruptedException fail) {
1120	<	fail("Unexpected InterruptedException");
1113	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1114	>	// always sleep at least 1 ms, with high probability avoiding
1115	>	// transitory states
1116	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1117	>	try { delay(1); }
1118	>	catch (InterruptedException fail) {
1119	>	throw new AssertionError("Unexpected InterruptedException", fail);
1120	>	}
1121	>	Thread.State s = thread.getState();
1122	>	if (s == expected)
1123	>	return;
1124	>	else if (s == Thread.State.TERMINATED)
1125	>	fail("Unexpected thread termination");
1126		}
1127	+	fail("timed out waiting for thread to enter thread state " + expected);
1128		}
1129
1130		/**
#	Line 899 | Line 1165 | public class JSR166TestCase extends Test
1165		}
1166
1167		/**
1168	+	* The maximum number of consecutive spurious wakeups we should
1169	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1170	+	*/
1171	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1172	+
1173	+	/**
1174		* The number of elements to place in collections, arrays, etc.
1175		*/
1176		public static final int SIZE = 20;
#	Line 1002 | Line 1274 | public class JSR166TestCase extends Test
1274		}
1275		public void refresh() {}
1276		public String toString() {
1277	<	List<Permission> ps = new ArrayList<Permission>();
1277	>	List<Permission> ps = new ArrayList<>();
1278		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1279		ps.add(e.nextElement());
1280		return "AdjustablePolicy with permissions " + ps;
#	Line 1030 | Line 1302 | public class JSR166TestCase extends Test
1302
1303		/**
1304		* Sleeps until the given time has elapsed.
1305	<	* Throws AssertionFailedError if interrupted.
1305	>	* Throws AssertionError if interrupted.
1306		*/
1307	<	void sleep(long millis) {
1307	>	static void sleep(long millis) {
1308		try {
1309		delay(millis);
1310		} catch (InterruptedException fail) {
1311	<	AssertionFailedError afe =
1040	<	new AssertionFailedError("Unexpected InterruptedException");
1041	<	afe.initCause(fail);
1042	<	throw afe;
1311	>	throw new AssertionError("Unexpected InterruptedException", fail);
1312		}
1313		}
1314
1315		/**
1316		* Spin-waits up to the specified number of milliseconds for the given
1317		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1318	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1319		*/
1320	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1321	<	long startTime = System.nanoTime();
1322	<	for (;;) {
1323	<	Thread.State s = thread.getState();
1324	<	if (s == Thread.State.BLOCKED ||
1325	<	s == Thread.State.WAITING ||
1326	<	s == Thread.State.TIMED_WAITING)
1327	<	return;
1328	<	else if (s == Thread.State.TERMINATED)
1320	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1321	>	Callable<Boolean> waitingForGodot) {
1322	>	for (long startTime = 0L;;) {
1323	>	switch (thread.getState()) {
1324	>	default: break;
1325	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1326	>	try {
1327	>	if (waitingForGodot == null || waitingForGodot.call())
1328	>	return;
1329	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1330	>	break;
1331	>	case TERMINATED:
1332		fail("Unexpected thread termination");
1333	+	}
1334	+
1335	+	if (startTime == 0L)
1336	+	startTime = System.nanoTime();
1337		else if (millisElapsedSince(startTime) > timeoutMillis) {
1338	<	threadAssertTrue(thread.isAlive());
1339	<	return;
1338	>	assertTrue(thread.isAlive());
1339	>	if (waitingForGodot == null
1340	>	|| thread.getState() == Thread.State.RUNNABLE)
1341	>	fail("timed out waiting for thread to enter wait state");
1342	>	else
1343	>	fail("timed out waiting for condition, thread state="
1344	>	+ thread.getState());
1345		}
1346		Thread.yield();
1347		}
1348		}
1349
1350		/**
1351	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1352	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1351	>	* Spin-waits up to the specified number of milliseconds for the given
1352	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1353	>	*/
1354	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1355	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1356	>	}
1357	>
1358	>	/**
1359	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1360	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1361		*/
1362		void waitForThreadToEnterWaitState(Thread thread) {
1363	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1363	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1364	>	}
1365	>
1366	>	/**
1367	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1368	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1369	>	* and additionally satisfy the given condition.
1370	>	*/
1371	>	void waitForThreadToEnterWaitState(Thread thread,
1372	>	Callable<Boolean> waitingForGodot) {
1373	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1374		}
1375
1376		/**
#	Line 1088 | Line 1388 | public class JSR166TestCase extends Test
1388		//             r.run();
1389		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1390		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1391	<	//             throw new AssertionFailedError("did not return promptly");
1391	>	//             throw new AssertionError("did not return promptly");
1392		//     }
1393
1394		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1101 | Line 1401 | public class JSR166TestCase extends Test
1401		*/
1402		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1403		long startTime = System.nanoTime();
1404	+	T actual = null;
1405		try {
1406	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1406	>	actual = f.get(timeoutMillis, MILLISECONDS);
1407		} catch (Throwable fail) { threadUnexpectedException(fail); }
1408	+	assertEquals(expectedValue, actual);
1409		if (millisElapsedSince(startTime) > timeoutMillis/2)
1410	<	throw new AssertionFailedError("timed get did not return promptly");
1410	>	throw new AssertionError("timed get did not return promptly");
1411		}
1412
1413		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1135 | Line 1437 | public class JSR166TestCase extends Test
1437		} finally {
1438		if (t.getState() != Thread.State.TERMINATED) {
1439		t.interrupt();
1440	<	fail("Test timed out");
1440	>	threadFail("timed out waiting for thread to terminate");
1441		}
1442		}
1443		}
#	Line 1163 | Line 1465 | public class JSR166TestCase extends Test
1465		}
1466		}
1467
1166	–	public abstract class RunnableShouldThrow implements Runnable {
1167	–	protected abstract void realRun() throws Throwable;
1168	–
1169	–	final Class<?> exceptionClass;
1170	–
1171	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1172	–	this.exceptionClass = exceptionClass;
1173	–	}
1174	–
1175	–	public final void run() {
1176	–	try {
1177	–	realRun();
1178	–	threadShouldThrow(exceptionClass.getSimpleName());
1179	–	} catch (Throwable t) {
1180	–	if (! exceptionClass.isInstance(t))
1181	–	threadUnexpectedException(t);
1182	–	}
1183	–	}
1184	–	}
1185	–
1468		public abstract class ThreadShouldThrow extends Thread {
1469		protected abstract void realRun() throws Throwable;
1470
#	Line 1195 | Line 1477 | public class JSR166TestCase extends Test
1477		public final void run() {
1478		try {
1479		realRun();
1198	–	threadShouldThrow(exceptionClass.getSimpleName());
1480		} catch (Throwable t) {
1481		if (! exceptionClass.isInstance(t))
1482		threadUnexpectedException(t);
1483	+	return;
1484		}
1485	+	threadShouldThrow(exceptionClass.getSimpleName());
1486		}
1487		}
1488
#	Line 1209 | Line 1492 | public class JSR166TestCase extends Test
1492		public final void run() {
1493		try {
1494		realRun();
1212	–	threadShouldThrow("InterruptedException");
1495		} catch (InterruptedException success) {
1496		threadAssertFalse(Thread.interrupted());
1497	+	return;
1498		} catch (Throwable fail) {
1499		threadUnexpectedException(fail);
1500		}
1501	+	threadShouldThrow("InterruptedException");
1502		}
1503		}
1504
#	Line 1226 | Line 1510 | public class JSR166TestCase extends Test
1510		return realCall();
1511		} catch (Throwable fail) {
1512		threadUnexpectedException(fail);
1229	–	return null;
1230	–	}
1231	–	}
1232	–	}
1233	–
1234	–	public abstract class CheckedInterruptedCallable<T>
1235	–	implements Callable<T> {
1236	–	protected abstract T realCall() throws Throwable;
1237	–
1238	–	public final T call() {
1239	–	try {
1240	–	T result = realCall();
1241	–	threadShouldThrow("InterruptedException");
1242	–	return result;
1243	–	} catch (InterruptedException success) {
1244	–	threadAssertFalse(Thread.interrupted());
1245	–	} catch (Throwable fail) {
1246	–	threadUnexpectedException(fail);
1513		}
1514	<	return null;
1514	>	throw new AssertionError("unreached");
1515		}
1516		}
1517
#	Line 1283 | Line 1549 | public class JSR166TestCase extends Test
1549		}};
1550		}
1551
1552	<	public Runnable awaiter(final CountDownLatch latch) {
1553	<	return new CheckedRunnable() {
1554	<	public void realRun() throws InterruptedException {
1555	<	await(latch);
1556	<	}};
1552	>	class LatchAwaiter extends CheckedRunnable {
1553	>	static final int NEW = 0;
1554	>	static final int RUNNING = 1;
1555	>	static final int DONE = 2;
1556	>	final CountDownLatch latch;
1557	>	int state = NEW;
1558	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1559	>	public void realRun() throws InterruptedException {
1560	>	state = 1;
1561	>	await(latch);
1562	>	state = 2;
1563	>	}
1564		}
1565
1566	<	public void await(CountDownLatch latch) {
1566	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1567	>	return new LatchAwaiter(latch);
1568	>	}
1569	>
1570	>	public void await(CountDownLatch latch, long timeoutMillis) {
1571	>	boolean timedOut = false;
1572		try {
1573	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1573	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1574		} catch (Throwable fail) {
1575		threadUnexpectedException(fail);
1576		}
1577	+	if (timedOut)
1578	+	fail("timed out waiting for CountDownLatch for "
1579	+	+ (timeoutMillis/1000) + " sec");
1580	+	}
1581	+
1582	+	public void await(CountDownLatch latch) {
1583	+	await(latch, LONG_DELAY_MS);
1584		}
1585
1586		public void await(Semaphore semaphore) {
1587	+	boolean timedOut = false;
1588		try {
1589	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1589	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1590	>	} catch (Throwable fail) {
1591	>	threadUnexpectedException(fail);
1592	>	}
1593	>	if (timedOut)
1594	>	fail("timed out waiting for Semaphore for "
1595	>	+ (LONG_DELAY_MS/1000) + " sec");
1596	>	}
1597	>
1598	>	public void await(CyclicBarrier barrier) {
1599	>	try {
1600	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1601		} catch (Throwable fail) {
1602		threadUnexpectedException(fail);
1603		}
#	Line 1320 | Line 1617 | public class JSR166TestCase extends Test
1617		//         long startTime = System.nanoTime();
1618		//         while (!flag.get()) {
1619		//             if (millisElapsedSince(startTime) > timeoutMillis)
1620	<	//                 throw new AssertionFailedError("timed out");
1620	>	//                 throw new AssertionError("timed out");
1621		//             Thread.yield();
1622		//         }
1623		//     }
#	Line 1329 | Line 1626 | public class JSR166TestCase extends Test
1626		public String call() { throw new NullPointerException(); }
1627		}
1628
1332	–	public static class CallableOne implements Callable<Integer> {
1333	–	public Integer call() { return one; }
1334	–	}
1335	–
1336	–	public class ShortRunnable extends CheckedRunnable {
1337	–	protected void realRun() throws Throwable {
1338	–	delay(SHORT_DELAY_MS);
1339	–	}
1340	–	}
1341	–
1342	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1343	–	protected void realRun() throws InterruptedException {
1344	–	delay(SHORT_DELAY_MS);
1345	–	}
1346	–	}
1347	–
1348	–	public class SmallRunnable extends CheckedRunnable {
1349	–	protected void realRun() throws Throwable {
1350	–	delay(SMALL_DELAY_MS);
1351	–	}
1352	–	}
1353	–
1354	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1355	–	protected void realRun() {
1356	–	try {
1357	–	delay(SMALL_DELAY_MS);
1358	–	} catch (InterruptedException ok) {}
1359	–	}
1360	–	}
1361	–
1362	–	public class SmallCallable extends CheckedCallable {
1363	–	protected Object realCall() throws InterruptedException {
1364	–	delay(SMALL_DELAY_MS);
1365	–	return Boolean.TRUE;
1366	–	}
1367	–	}
1368	–
1369	–	public class MediumRunnable extends CheckedRunnable {
1370	–	protected void realRun() throws Throwable {
1371	–	delay(MEDIUM_DELAY_MS);
1372	–	}
1373	–	}
1374	–
1375	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1376	–	protected void realRun() throws InterruptedException {
1377	–	delay(MEDIUM_DELAY_MS);
1378	–	}
1379	–	}
1380	–
1629		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1630		return new CheckedRunnable() {
1631		protected void realRun() {
#	Line 1387 | Line 1635 | public class JSR166TestCase extends Test
1635		}};
1636		}
1637
1390	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1391	–	protected void realRun() {
1392	–	try {
1393	–	delay(MEDIUM_DELAY_MS);
1394	–	} catch (InterruptedException ok) {}
1395	–	}
1396	–	}
1397	–
1398	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1399	–	protected void realRun() {
1400	–	try {
1401	–	delay(LONG_DELAY_MS);
1402	–	} catch (InterruptedException ok) {}
1403	–	}
1404	–	}
1405	–
1638		/**
1639		* For use as ThreadFactory in constructors
1640		*/
#	Line 1416 | Line 1648 | public class JSR166TestCase extends Test
1648		boolean isDone();
1649		}
1650
1419	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1420	–	return new TrackedRunnable() {
1421	–	private volatile boolean done = false;
1422	–	public boolean isDone() { return done; }
1423	–	public void run() {
1424	–	try {
1425	–	delay(timeoutMillis);
1426	–	done = true;
1427	–	} catch (InterruptedException ok) {}
1428	–	}
1429	–	};
1430	–	}
1431	–
1432	–	public static class TrackedShortRunnable implements Runnable {
1433	–	public volatile boolean done = false;
1434	–	public void run() {
1435	–	try {
1436	–	delay(SHORT_DELAY_MS);
1437	–	done = true;
1438	–	} catch (InterruptedException ok) {}
1439	–	}
1440	–	}
1441	–
1442	–	public static class TrackedSmallRunnable implements Runnable {
1443	–	public volatile boolean done = false;
1444	–	public void run() {
1445	–	try {
1446	–	delay(SMALL_DELAY_MS);
1447	–	done = true;
1448	–	} catch (InterruptedException ok) {}
1449	–	}
1450	–	}
1451	–
1452	–	public static class TrackedMediumRunnable implements Runnable {
1453	–	public volatile boolean done = false;
1454	–	public void run() {
1455	–	try {
1456	–	delay(MEDIUM_DELAY_MS);
1457	–	done = true;
1458	–	} catch (InterruptedException ok) {}
1459	–	}
1460	–	}
1461	–
1462	–	public static class TrackedLongRunnable implements Runnable {
1463	–	public volatile boolean done = false;
1464	–	public void run() {
1465	–	try {
1466	–	delay(LONG_DELAY_MS);
1467	–	done = true;
1468	–	} catch (InterruptedException ok) {}
1469	–	}
1470	–	}
1471	–
1651		public static class TrackedNoOpRunnable implements Runnable {
1652		public volatile boolean done = false;
1653		public void run() {
#	Line 1476 | Line 1655 | public class JSR166TestCase extends Test
1655		}
1656		}
1657
1479	–	public static class TrackedCallable implements Callable {
1480	–	public volatile boolean done = false;
1481	–	public Object call() {
1482	–	try {
1483	–	delay(SMALL_DELAY_MS);
1484	–	done = true;
1485	–	} catch (InterruptedException ok) {}
1486	–	return Boolean.TRUE;
1487	–	}
1488	–	}
1489	–
1658		/**
1659		* Analog of CheckedRunnable for RecursiveAction
1660		*/
#	Line 1513 | Line 1681 | public class JSR166TestCase extends Test
1681		return realCompute();
1682		} catch (Throwable fail) {
1683		threadUnexpectedException(fail);
1516	–	return null;
1684		}
1685	+	throw new AssertionError("unreached");
1686		}
1687		}
1688
#	Line 1528 | Line 1696 | public class JSR166TestCase extends Test
1696
1697		/**
1698		* A CyclicBarrier that uses timed await and fails with
1699	<	* AssertionFailedErrors instead of throwing checked exceptions.
1699	>	* AssertionErrors instead of throwing checked exceptions.
1700		*/
1701	<	public class CheckedBarrier extends CyclicBarrier {
1701	>	public static class CheckedBarrier extends CyclicBarrier {
1702		public CheckedBarrier(int parties) { super(parties); }
1703
1704		public int await() {
1705		try {
1706		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1707		} catch (TimeoutException timedOut) {
1708	<	throw new AssertionFailedError("timed out");
1708	>	throw new AssertionError("timed out");
1709		} catch (Exception fail) {
1710	<	AssertionFailedError afe =
1543	<	new AssertionFailedError("Unexpected exception: " + fail);
1544	<	afe.initCause(fail);
1545	<	throw afe;
1710	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1711		}
1712		}
1713		}
#	Line 1553 | Line 1718 | public class JSR166TestCase extends Test
1718		assertEquals(0, q.size());
1719		assertNull(q.peek());
1720		assertNull(q.poll());
1721	<	assertNull(q.poll(0, MILLISECONDS));
1721	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1722		assertEquals(q.toString(), "[]");
1723		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1724		assertFalse(q.iterator().hasNext());
#	Line 1594 | Line 1759 | public class JSR166TestCase extends Test
1759		}
1760		}
1761
1762	+	void assertImmutable(Object o) {
1763	+	if (o instanceof Collection) {
1764	+	assertThrows(
1765	+	UnsupportedOperationException.class,
1766	+	() -> ((Collection) o).add(null));
1767	+	}
1768	+	}
1769	+
1770		@SuppressWarnings("unchecked")
1771		<T> T serialClone(T o) {
1772	+	T clone = null;
1773		try {
1774		ObjectInputStream ois = new ObjectInputStream
1775		(new ByteArrayInputStream(serialBytes(o)));
1776	<	T clone = (T) ois.readObject();
1603	<	assertSame(o.getClass(), clone.getClass());
1604	<	return clone;
1776	>	clone = (T) ois.readObject();
1777		} catch (Throwable fail) {
1778		threadUnexpectedException(fail);
1779	+	}
1780	+	if (o == clone) assertImmutable(o);
1781	+	else assertSame(o.getClass(), clone.getClass());
1782	+	return clone;
1783	+	}
1784	+
1785	+	/**
1786	+	* A version of serialClone that leaves error handling (for
1787	+	* e.g. NotSerializableException) up to the caller.
1788	+	*/
1789	+	@SuppressWarnings("unchecked")
1790	+	<T> T serialClonePossiblyFailing(T o)
1791	+	throws ReflectiveOperationException, java.io.IOException {
1792	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1793	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1794	+	oos.writeObject(o);
1795	+	oos.flush();
1796	+	oos.close();
1797	+	ObjectInputStream ois = new ObjectInputStream
1798	+	(new ByteArrayInputStream(bos.toByteArray()));
1799	+	T clone = (T) ois.readObject();
1800	+	if (o == clone) assertImmutable(o);
1801	+	else assertSame(o.getClass(), clone.getClass());
1802	+	return clone;
1803	+	}
1804	+
1805	+	/**
1806	+	* If o implements Cloneable and has a public clone method,
1807	+	* returns a clone of o, else null.
1808	+	*/
1809	+	@SuppressWarnings("unchecked")
1810	+	<T> T cloneableClone(T o) {
1811	+	if (!(o instanceof Cloneable)) return null;
1812	+	final T clone;
1813	+	try {
1814	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1815	+	} catch (NoSuchMethodException ok) {
1816		return null;
1817	+	} catch (ReflectiveOperationException unexpected) {
1818	+	throw new Error(unexpected);
1819		}
1820	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1821	+	assertSame(o.getClass(), clone.getClass());
1822	+	return clone;
1823		}
1824
1825		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1826	<	Runnable... throwingActions) {
1827	<	for (Runnable throwingAction : throwingActions) {
1826	>	Action... throwingActions) {
1827	>	for (Action throwingAction : throwingActions) {
1828		boolean threw = false;
1829		try { throwingAction.run(); }
1830		catch (Throwable t) {
1831		threw = true;
1832	<	if (!expectedExceptionClass.isInstance(t)) {
1833	<	AssertionFailedError afe =
1834	<	new AssertionFailedError
1835	<	("Expected " + expectedExceptionClass.getName() +
1836	<	", got " + t.getClass().getName());
1623	<	afe.initCause(t);
1624	<	threadUnexpectedException(afe);
1625	<	}
1832	>	if (!expectedExceptionClass.isInstance(t))
1833	>	throw new AssertionError(
1834	>	"Expected " + expectedExceptionClass.getName() +
1835	>	", got " + t.getClass().getName(),
1836	>	t);
1837		}
1838		if (!threw)
1839		shouldThrow(expectedExceptionClass.getName());
#	Line 1636 | Line 1847 | public class JSR166TestCase extends Test
1847		} catch (NoSuchElementException success) {}
1848		assertFalse(it.hasNext());
1849		}
1850	+
1851	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1852	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1853	+	}
1854	+
1855	+	public Runnable runnableThrowing(final RuntimeException ex) {
1856	+	return new Runnable() { public void run() { throw ex; }};
1857	+	}
1858	+
1859	+	/** A reusable thread pool to be shared by tests. */
1860	+	static final ExecutorService cachedThreadPool =
1861	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1862	+	1000L, MILLISECONDS,
1863	+	new SynchronousQueue<Runnable>());
1864	+
1865	+	static <T> void shuffle(T[] array) {
1866	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1867	+	}
1868	+
1869	+	/**
1870	+	* Returns the same String as would be returned by {@link
1871	+	* Object#toString}, whether or not the given object's class
1872	+	* overrides toString().
1873	+	*
1874	+	* @see System#identityHashCode
1875	+	*/
1876	+	static String identityString(Object x) {
1877	+	return x.getClass().getName()
1878	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1879	+	}
1880	+
1881	+	// --- Shared assertions for Executor tests ---
1882	+
1883	+	/**
1884	+	* Returns maximum number of tasks that can be submitted to given
1885	+	* pool (with bounded queue) before saturation (when submission
1886	+	* throws RejectedExecutionException).
1887	+	*/
1888	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1889	+	BlockingQueue<Runnable> q = pool.getQueue();
1890	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1891	+	}
1892	+
1893	+	@SuppressWarnings("FutureReturnValueIgnored")
1894	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1895	+	try {
1896	+	e.execute((Runnable) null);
1897	+	shouldThrow();
1898	+	} catch (NullPointerException success) {}
1899	+
1900	+	if (! (e instanceof ExecutorService)) return;
1901	+	ExecutorService es = (ExecutorService) e;
1902	+	try {
1903	+	es.submit((Runnable) null);
1904	+	shouldThrow();
1905	+	} catch (NullPointerException success) {}
1906	+	try {
1907	+	es.submit((Runnable) null, Boolean.TRUE);
1908	+	shouldThrow();
1909	+	} catch (NullPointerException success) {}
1910	+	try {
1911	+	es.submit((Callable) null);
1912	+	shouldThrow();
1913	+	} catch (NullPointerException success) {}
1914	+
1915	+	if (! (e instanceof ScheduledExecutorService)) return;
1916	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1917	+	try {
1918	+	ses.schedule((Runnable) null,
1919	+	randomTimeout(), randomTimeUnit());
1920	+	shouldThrow();
1921	+	} catch (NullPointerException success) {}
1922	+	try {
1923	+	ses.schedule((Callable) null,
1924	+	randomTimeout(), randomTimeUnit());
1925	+	shouldThrow();
1926	+	} catch (NullPointerException success) {}
1927	+	try {
1928	+	ses.scheduleAtFixedRate((Runnable) null,
1929	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1930	+	shouldThrow();
1931	+	} catch (NullPointerException success) {}
1932	+	try {
1933	+	ses.scheduleWithFixedDelay((Runnable) null,
1934	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1935	+	shouldThrow();
1936	+	} catch (NullPointerException success) {}
1937	+	}
1938	+
1939	+	void setRejectedExecutionHandler(
1940	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1941	+	p.setRejectedExecutionHandler(handler);
1942	+	assertSame(handler, p.getRejectedExecutionHandler());
1943	+	}
1944	+
1945	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1946	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1947	+	final long savedTaskCount = p.getTaskCount();
1948	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1949	+	final int savedQueueSize = p.getQueue().size();
1950	+	final boolean stock = (p.getClass().getClassLoader() == null);
1951	+
1952	+	Runnable r = () -> {};
1953	+	Callable<Boolean> c = () -> Boolean.TRUE;
1954	+
1955	+	class Recorder implements RejectedExecutionHandler {
1956	+	public volatile Runnable r = null;
1957	+	public volatile ThreadPoolExecutor p = null;
1958	+	public void reset() { r = null; p = null; }
1959	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1960	+	assertNull(this.r);
1961	+	assertNull(this.p);
1962	+	this.r = r;
1963	+	this.p = p;
1964	+	}
1965	+	}
1966	+
1967	+	// check custom handler is invoked exactly once per task
1968	+	Recorder recorder = new Recorder();
1969	+	setRejectedExecutionHandler(p, recorder);
1970	+	for (int i = 2; i--> 0; ) {
1971	+	recorder.reset();
1972	+	p.execute(r);
1973	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1974	+	assertSame(r, recorder.r);
1975	+	assertSame(p, recorder.p);
1976	+
1977	+	recorder.reset();
1978	+	assertFalse(p.submit(r).isDone());
1979	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1980	+	assertSame(p, recorder.p);
1981	+
1982	+	recorder.reset();
1983	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1984	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1985	+	assertSame(p, recorder.p);
1986	+
1987	+	recorder.reset();
1988	+	assertFalse(p.submit(c).isDone());
1989	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1990	+	assertSame(p, recorder.p);
1991	+
1992	+	if (p instanceof ScheduledExecutorService) {
1993	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1994	+	ScheduledFuture<?> future;
1995	+
1996	+	recorder.reset();
1997	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
1998	+	assertFalse(future.isDone());
1999	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2000	+	assertSame(p, recorder.p);
2001	+
2002	+	recorder.reset();
2003	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2004	+	assertFalse(future.isDone());
2005	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2006	+	assertSame(p, recorder.p);
2007	+
2008	+	recorder.reset();
2009	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2010	+	assertFalse(future.isDone());
2011	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2012	+	assertSame(p, recorder.p);
2013	+
2014	+	recorder.reset();
2015	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2016	+	assertFalse(future.isDone());
2017	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2018	+	assertSame(p, recorder.p);
2019	+	}
2020	+	}
2021	+
2022	+	// Checking our custom handler above should be sufficient, but
2023	+	// we add some integration tests of standard handlers.
2024	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2025	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2026	+
2027	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2028	+	try {
2029	+	p.execute(setThread);
2030	+	shouldThrow();
2031	+	} catch (RejectedExecutionException success) {}
2032	+	assertNull(thread.get());
2033	+
2034	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2035	+	p.execute(setThread);
2036	+	assertNull(thread.get());
2037	+
2038	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2039	+	p.execute(setThread);
2040	+	if (p.isShutdown())
2041	+	assertNull(thread.get());
2042	+	else
2043	+	assertSame(Thread.currentThread(), thread.get());
2044	+
2045	+	setRejectedExecutionHandler(p, savedHandler);
2046	+
2047	+	// check that pool was not perturbed by handlers
2048	+	assertEquals(savedTaskCount, p.getTaskCount());
2049	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2050	+	assertEquals(savedQueueSize, p.getQueue().size());
2051	+	}
2052	+
2053	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2054	+	assertEquals(x, y);
2055	+	assertEquals(y, x);
2056	+	assertEquals(x.isEmpty(), y.isEmpty());
2057	+	assertEquals(x.size(), y.size());
2058	+	if (x instanceof List) {
2059	+	assertEquals(x.toString(), y.toString());
2060	+	}
2061	+	if (x instanceof List || x instanceof Set) {
2062	+	assertEquals(x.hashCode(), y.hashCode());
2063	+	}
2064	+	if (x instanceof List || x instanceof Deque) {
2065	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2066	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2067	+	y.toArray(new Object[0])));
2068	+	}
2069	+	}
2070	+
2071	+	/**
2072	+	* A weaker form of assertCollectionsEquals which does not insist
2073	+	* that the two collections satisfy Object#equals(Object), since
2074	+	* they may use identity semantics as Deques do.
2075	+	*/
2076	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2077	+	if (x instanceof List || x instanceof Set)
2078	+	assertCollectionsEquals(x, y);
2079	+	else {
2080	+	assertEquals(x.isEmpty(), y.isEmpty());
2081	+	assertEquals(x.size(), y.size());
2082	+	assertEquals(new HashSet(x), new HashSet(y));
2083	+	if (x instanceof Deque) {
2084	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2085	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2086	+	y.toArray(new Object[0])));
2087	+	}
2088	+	}
2089	+	}
2090		}

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