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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.155 by jsr166, Sat Oct 3 19:59:49 2015 UTC vs.
Revision 1.258 by jsr166, Tue Aug 20 23:06:11 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 a random element from given choices.
696	+	*/
697	+	<T> T chooseRandomly(T... choices) {
698	+	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
699	+	}
700	+
701		/**
702	<	* Returns the shortest timed delay. This could
703	<	* be reimplemented to use for example a Property.
702	>	* Returns the shortest timed delay. This can be scaled up for
703	>	* slow machines using the jsr166.delay.factor system property,
704	>	* or via jtreg's -timeoutFactor: flag.
705	>	* http://openjdk.java.net/jtreg/command-help.html
706		*/
707		protected long getShortDelay() {
708	<	return 50;
708	>	return (long) (50 * delayFactor);
709		}
710
711		/**
#	Line 488 | Line 718 | public class JSR166TestCase extends Test
718		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
719		}
720
721	+	private static final long TIMEOUT_DELAY_MS
722	+	= (long) (12.0 * Math.cbrt(delayFactor));
723	+
724		/**
725	<	* Returns a timeout in milliseconds to be used in tests that
726	<	* verify that operations block or time out.
725	>	* Returns a timeout in milliseconds to be used in tests that verify
726	>	* that operations block or time out.  We want this to be longer
727	>	* than the OS scheduling quantum, but not too long, so don't scale
728	>	* linearly with delayFactor; we use "crazy" cube root instead.
729		*/
730	<	long timeoutMillis() {
731	<	return SHORT_DELAY_MS / 4;
730	>	static long timeoutMillis() {
731	>	return TIMEOUT_DELAY_MS;
732		}
733
734		/**
#	Line 509 | Line 744 | public class JSR166TestCase extends Test
744		* The first exception encountered if any threadAssertXXX method fails.
745		*/
746		private final AtomicReference<Throwable> threadFailure
747	<	= new AtomicReference<Throwable>(null);
747	>	= new AtomicReference<>(null);
748
749		/**
750		* Records an exception so that it can be rethrown later in the test
#	Line 518 | Line 753 | public class JSR166TestCase extends Test
753		* the same test have no effect.
754		*/
755		public void threadRecordFailure(Throwable t) {
756	<	threadDump();
756	>	System.err.println(t);
757	>	dumpTestThreads();
758		threadFailure.compareAndSet(null, t);
759		}
760
#	Line 529 | Line 765 | public class JSR166TestCase extends Test
765		void tearDownFail(String format, Object... args) {
766		String msg = toString() + ": " + String.format(format, args);
767		System.err.println(msg);
768	<	threadDump();
769	<	throw new AssertionFailedError(msg);
768	>	dumpTestThreads();
769	>	throw new AssertionError(msg);
770		}
771
772		/**
#	Line 551 | Line 787 | public class JSR166TestCase extends Test
787		throw (RuntimeException) t;
788		else if (t instanceof Exception)
789		throw (Exception) t;
790	<	else {
791	<	AssertionFailedError afe =
556	<	new AssertionFailedError(t.toString());
557	<	afe.initCause(t);
558	<	throw afe;
559	<	}
790	>	else
791	>	throw new AssertionError(t.toString(), t);
792		}
793
794		if (Thread.interrupted())
#	Line 566 | Line 798 | public class JSR166TestCase extends Test
798		}
799
800		/**
801	<	* Finds missing try { ... } finally { joinPool(e); }
801	>	* Finds missing PoolCleaners
802		*/
803		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
804		Thread[] survivors = new Thread[7];
#	Line 590 | Line 822 | public class JSR166TestCase extends Test
822
823		/**
824		* Just like fail(reason), but additionally recording (using
825	<	* threadRecordFailure) any AssertionFailedError thrown, so that
826	<	* the current testcase will fail.
825	>	* threadRecordFailure) any AssertionError thrown, so that the
826	>	* current testcase will fail.
827		*/
828		public void threadFail(String reason) {
829		try {
830		fail(reason);
831	<	} catch (AssertionFailedError t) {
832	<	threadRecordFailure(t);
833	<	throw t;
831	>	} catch (AssertionError fail) {
832	>	threadRecordFailure(fail);
833	>	throw fail;
834		}
835		}
836
837		/**
838		* Just like assertTrue(b), but additionally recording (using
839	<	* threadRecordFailure) any AssertionFailedError thrown, so that
840	<	* the current testcase will fail.
839	>	* threadRecordFailure) any AssertionError thrown, so that the
840	>	* current testcase will fail.
841		*/
842		public void threadAssertTrue(boolean b) {
843		try {
844		assertTrue(b);
845	<	} catch (AssertionFailedError t) {
846	<	threadRecordFailure(t);
847	<	throw t;
845	>	} catch (AssertionError fail) {
846	>	threadRecordFailure(fail);
847	>	throw fail;
848		}
849		}
850
851		/**
852		* Just like assertFalse(b), but additionally recording (using
853	<	* threadRecordFailure) any AssertionFailedError thrown, so that
854	<	* the current testcase will fail.
853	>	* threadRecordFailure) any AssertionError thrown, so that the
854	>	* current testcase will fail.
855		*/
856		public void threadAssertFalse(boolean b) {
857		try {
858		assertFalse(b);
859	<	} catch (AssertionFailedError t) {
860	<	threadRecordFailure(t);
861	<	throw t;
859	>	} catch (AssertionError fail) {
860	>	threadRecordFailure(fail);
861	>	throw fail;
862		}
863		}
864
865		/**
866		* Just like assertNull(x), but additionally recording (using
867	<	* threadRecordFailure) any AssertionFailedError thrown, so that
868	<	* the current testcase will fail.
867	>	* threadRecordFailure) any AssertionError thrown, so that the
868	>	* current testcase will fail.
869		*/
870		public void threadAssertNull(Object x) {
871		try {
872		assertNull(x);
873	<	} catch (AssertionFailedError t) {
874	<	threadRecordFailure(t);
875	<	throw t;
873	>	} catch (AssertionError fail) {
874	>	threadRecordFailure(fail);
875	>	throw fail;
876		}
877		}
878
879		/**
880		* Just like assertEquals(x, y), but additionally recording (using
881	<	* threadRecordFailure) any AssertionFailedError thrown, so that
882	<	* the current testcase will fail.
881	>	* threadRecordFailure) any AssertionError thrown, so that the
882	>	* current testcase will fail.
883		*/
884		public void threadAssertEquals(long x, long y) {
885		try {
886		assertEquals(x, y);
887	<	} catch (AssertionFailedError t) {
888	<	threadRecordFailure(t);
889	<	throw t;
887	>	} catch (AssertionError fail) {
888	>	threadRecordFailure(fail);
889	>	throw fail;
890		}
891		}
892
893		/**
894		* Just like assertEquals(x, y), but additionally recording (using
895	<	* threadRecordFailure) any AssertionFailedError thrown, so that
896	<	* the current testcase will fail.
895	>	* threadRecordFailure) any AssertionError thrown, so that the
896	>	* current testcase will fail.
897		*/
898		public void threadAssertEquals(Object x, Object y) {
899		try {
900		assertEquals(x, y);
901	<	} catch (AssertionFailedError fail) {
901	>	} catch (AssertionError fail) {
902		threadRecordFailure(fail);
903		throw fail;
904		} catch (Throwable fail) {
#	Line 676 | Line 908 | public class JSR166TestCase extends Test
908
909		/**
910		* Just like assertSame(x, y), but additionally recording (using
911	<	* threadRecordFailure) any AssertionFailedError thrown, so that
912	<	* the current testcase will fail.
911	>	* threadRecordFailure) any AssertionError thrown, so that the
912	>	* current testcase will fail.
913		*/
914		public void threadAssertSame(Object x, Object y) {
915		try {
916		assertSame(x, y);
917	<	} catch (AssertionFailedError fail) {
917	>	} catch (AssertionError fail) {
918		threadRecordFailure(fail);
919		throw fail;
920		}
#	Line 704 | Line 936 | public class JSR166TestCase extends Test
936
937		/**
938		* Records the given exception using {@link #threadRecordFailure},
939	<	* then rethrows the exception, wrapping it in an
940	<	* AssertionFailedError if necessary.
939	>	* then rethrows the exception, wrapping it in an AssertionError
940	>	* if necessary.
941		*/
942		public void threadUnexpectedException(Throwable t) {
943		threadRecordFailure(t);
#	Line 714 | Line 946 | public class JSR166TestCase extends Test
946		throw (RuntimeException) t;
947		else if (t instanceof Error)
948		throw (Error) t;
949	<	else {
950	<	AssertionFailedError afe =
719	<	new AssertionFailedError("unexpected exception: " + t);
720	<	afe.initCause(t);
721	<	throw afe;
722	<	}
949	>	else
950	>	throw new AssertionError("unexpected exception: " + t, t);
951		}
952
953		/**
954		* Delays, via Thread.sleep, for the given millisecond delay, but
955		* if the sleep is shorter than specified, may re-sleep or yield
956	<	* until time elapses.
956	>	* until time elapses.  Ensures that the given time, as measured
957	>	* by System.nanoTime(), has elapsed.
958		*/
959		static void delay(long millis) throws InterruptedException {
960	<	long startTime = System.nanoTime();
961	<	long ns = millis * 1000 * 1000;
962	<	for (;;) {
960	>	long nanos = millis * (1000 * 1000);
961	>	final long wakeupTime = System.nanoTime() + nanos;
962	>	do {
963		if (millis > 0L)
964		Thread.sleep(millis);
965		else // too short to sleep
966		Thread.yield();
967	<	long d = ns - (System.nanoTime() - startTime);
968	<	if (d > 0L)
969	<	millis = d / (1000 * 1000);
741	<	else
742	<	break;
743	<	}
967	>	nanos = wakeupTime - System.nanoTime();
968	>	millis = nanos / (1000 * 1000);
969	>	} while (nanos >= 0L);
970		}
971
972		/**
973		* Allows use of try-with-resources with per-test thread pools.
974		*/
975	<	static class PoolCloser<T extends ExecutorService>
976	<	implements AutoCloseable {
977	<	public final T pool;
752	<	public PoolCloser(T pool) { this.pool = pool; }
975	>	class PoolCleaner implements AutoCloseable {
976	>	private final ExecutorService pool;
977	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
978		public void close() { joinPool(pool); }
979		}
980
981		/**
982	+	* An extension of PoolCleaner that has an action to release the pool.
983	+	*/
984	+	class PoolCleanerWithReleaser extends PoolCleaner {
985	+	private final Runnable releaser;
986	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
987	+	super(pool);
988	+	this.releaser = releaser;
989	+	}
990	+	public void close() {
991	+	try {
992	+	releaser.run();
993	+	} finally {
994	+	super.close();
995	+	}
996	+	}
997	+	}
998	+
999	+	PoolCleaner cleaner(ExecutorService pool) {
1000	+	return new PoolCleaner(pool);
1001	+	}
1002	+
1003	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
1004	+	return new PoolCleanerWithReleaser(pool, releaser);
1005	+	}
1006	+
1007	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1008	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
1009	+	}
1010	+
1011	+	Runnable releaser(final CountDownLatch latch) {
1012	+	return new Runnable() { public void run() {
1013	+	do { latch.countDown(); }
1014	+	while (latch.getCount() > 0);
1015	+	}};
1016	+	}
1017	+
1018	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1019	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1020	+	}
1021	+
1022	+	Runnable releaser(final AtomicBoolean flag) {
1023	+	return new Runnable() { public void run() { flag.set(true); }};
1024	+	}
1025	+
1026	+	/**
1027		* Waits out termination of a thread pool or fails doing so.
1028		*/
1029	<	static void joinPool(ExecutorService pool) {
1029	>	void joinPool(ExecutorService pool) {
1030		try {
1031		pool.shutdown();
1032	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1033	<	fail("ExecutorService " + pool +
1034	<	" did not terminate in a timely manner");
1032	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1033	>	try {
1034	>	threadFail("ExecutorService " + pool +
1035	>	" did not terminate in a timely manner");
1036	>	} finally {
1037	>	// last resort, for the benefit of subsequent tests
1038	>	pool.shutdownNow();
1039	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1040	>	}
1041	>	}
1042		} catch (SecurityException ok) {
1043		// Allowed in case test doesn't have privs
1044		} catch (InterruptedException fail) {
1045	<	fail("Unexpected InterruptedException");
1045	>	threadFail("Unexpected InterruptedException");
1046		}
1047		}
1048
1049	<	/** Like Runnable, but with the freedom to throw anything */
1049	>	/**
1050	>	* Like Runnable, but with the freedom to throw anything.
1051	>	* junit folks had the same idea:
1052	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1053	>	*/
1054		interface Action { public void run() throws Throwable; }
1055
1056		/**
#	Line 778 | Line 1059 | public class JSR166TestCase extends Test
1059		* necessarily individually slow because they must block.
1060		*/
1061		void testInParallel(Action ... actions) {
1062	<	try (PoolCloser<ExecutorService> poolCloser
1063	<	= new PoolCloser<>(Executors.newCachedThreadPool())) {
783	<	ExecutorService pool = poolCloser.pool;
1062	>	ExecutorService pool = Executors.newCachedThreadPool();
1063	>	try (PoolCleaner cleaner = cleaner(pool)) {
1064		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1065		for (final Action action : actions)
1066		futures.add(pool.submit(new CheckedRunnable() {
#	Line 797 | Line 1077 | public class JSR166TestCase extends Test
1077		}
1078
1079		/**
1080	<	* A debugging tool to print all stack traces, as jstack does.
1080	>	* A debugging tool to print stack traces of most threads, as jstack does.
1081		* Uninteresting threads are filtered out.
1082		*/
1083	<	static void threadDump() {
1083	>	static void dumpTestThreads() {
1084	>	SecurityManager sm = System.getSecurityManager();
1085	>	if (sm != null) {
1086	>	try {
1087	>	System.setSecurityManager(null);
1088	>	} catch (SecurityException giveUp) {
1089	>	return;
1090	>	}
1091	>	}
1092	>
1093		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1094		System.err.println("------ stacktrace dump start ------");
1095		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1096	<	String name = info.getThreadName();
1096	>	final String name = info.getThreadName();
1097	>	String lockName;
1098		if ("Signal Dispatcher".equals(name))
1099		continue;
1100		if ("Reference Handler".equals(name)
1101	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1101	>	&& (lockName = info.getLockName()) != null
1102	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1103		continue;
1104		if ("Finalizer".equals(name)
1105	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1105	>	&& (lockName = info.getLockName()) != null
1106	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1107	>	continue;
1108	>	if ("checkForWedgedTest".equals(name))
1109		continue;
1110		System.err.print(info);
1111		}
1112		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	–	}
1113
1114	<	/**
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);
1114	>	if (sm != null) System.setSecurityManager(sm);
1115		}
1116
1117		/**
1118	<	* Checks that the threads do not terminate within the given millisecond delay.
1118	>	* Checks that thread eventually enters the expected blocked thread state.
1119		*/
1120	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1121	<	try {
1122	<	// No need to optimize the failing case via Thread.join.
1123	<	delay(millis);
1124	<	for (Thread thread : threads)
1125	<	assertTrue(thread.isAlive());
1126	<	} catch (InterruptedException fail) {
1127	<	fail("Unexpected InterruptedException");
1120	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1121	>	// always sleep at least 1 ms, with high probability avoiding
1122	>	// transitory states
1123	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1124	>	try { delay(1); }
1125	>	catch (InterruptedException fail) {
1126	>	throw new AssertionError("Unexpected InterruptedException", fail);
1127	>	}
1128	>	Thread.State s = thread.getState();
1129	>	if (s == expected)
1130	>	return;
1131	>	else if (s == Thread.State.TERMINATED)
1132	>	fail("Unexpected thread termination");
1133		}
1134	+	fail("timed out waiting for thread to enter thread state " + expected);
1135		}
1136
1137		/**
#	Line 899 | Line 1172 | public class JSR166TestCase extends Test
1172		}
1173
1174		/**
1175	+	* The maximum number of consecutive spurious wakeups we should
1176	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1177	+	*/
1178	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1179	+
1180	+	/**
1181		* The number of elements to place in collections, arrays, etc.
1182		*/
1183		public static final int SIZE = 20;
#	Line 1002 | Line 1281 | public class JSR166TestCase extends Test
1281		}
1282		public void refresh() {}
1283		public String toString() {
1284	<	List<Permission> ps = new ArrayList<Permission>();
1284	>	List<Permission> ps = new ArrayList<>();
1285		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1286		ps.add(e.nextElement());
1287		return "AdjustablePolicy with permissions " + ps;
#	Line 1030 | Line 1309 | public class JSR166TestCase extends Test
1309
1310		/**
1311		* Sleeps until the given time has elapsed.
1312	<	* Throws AssertionFailedError if interrupted.
1312	>	* Throws AssertionError if interrupted.
1313		*/
1314	<	void sleep(long millis) {
1314	>	static void sleep(long millis) {
1315		try {
1316		delay(millis);
1317		} catch (InterruptedException fail) {
1318	<	AssertionFailedError afe =
1040	<	new AssertionFailedError("Unexpected InterruptedException");
1041	<	afe.initCause(fail);
1042	<	throw afe;
1318	>	throw new AssertionError("Unexpected InterruptedException", fail);
1319		}
1320		}
1321
1322		/**
1323		* Spin-waits up to the specified number of milliseconds for the given
1324		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1325	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1326		*/
1327	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1328	<	long startTime = System.nanoTime();
1329	<	for (;;) {
1330	<	Thread.State s = thread.getState();
1331	<	if (s == Thread.State.BLOCKED ||
1332	<	s == Thread.State.WAITING ||
1333	<	s == Thread.State.TIMED_WAITING)
1334	<	return;
1335	<	else if (s == Thread.State.TERMINATED)
1327	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1328	>	Callable<Boolean> waitingForGodot) {
1329	>	for (long startTime = 0L;;) {
1330	>	switch (thread.getState()) {
1331	>	default: break;
1332	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1333	>	try {
1334	>	if (waitingForGodot == null || waitingForGodot.call())
1335	>	return;
1336	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1337	>	break;
1338	>	case TERMINATED:
1339		fail("Unexpected thread termination");
1340	+	}
1341	+
1342	+	if (startTime == 0L)
1343	+	startTime = System.nanoTime();
1344		else if (millisElapsedSince(startTime) > timeoutMillis) {
1345	<	threadAssertTrue(thread.isAlive());
1346	<	return;
1345	>	assertTrue(thread.isAlive());
1346	>	if (waitingForGodot == null
1347	>	|| thread.getState() == Thread.State.RUNNABLE)
1348	>	fail("timed out waiting for thread to enter wait state");
1349	>	else
1350	>	fail("timed out waiting for condition, thread state="
1351	>	+ thread.getState());
1352		}
1353		Thread.yield();
1354		}
1355		}
1356
1357		/**
1358	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1359	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1358	>	* Spin-waits up to the specified number of milliseconds for the given
1359	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1360	>	*/
1361	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1362	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1363	>	}
1364	>
1365	>	/**
1366	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1367	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1368		*/
1369		void waitForThreadToEnterWaitState(Thread thread) {
1370	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1370	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1371	>	}
1372	>
1373	>	/**
1374	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1375	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1376	>	* and additionally satisfy the given condition.
1377	>	*/
1378	>	void waitForThreadToEnterWaitState(Thread thread,
1379	>	Callable<Boolean> waitingForGodot) {
1380	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1381	>	}
1382	>
1383	>	/**
1384	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1385	>	* be interrupted.  Clears the interrupt status before returning.
1386	>	*/
1387	>	void awaitInterrupted() {
1388	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1389	>	if (startTime == 0L)
1390	>	startTime = System.nanoTime();
1391	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1392	>	fail("timed out waiting for thread interrupt");
1393	>	Thread.yield();
1394	>	}
1395		}
1396
1397		/**
#	Line 1088 | Line 1409 | public class JSR166TestCase extends Test
1409		//             r.run();
1410		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1411		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1412	<	//             throw new AssertionFailedError("did not return promptly");
1412	>	//             throw new AssertionError("did not return promptly");
1413		//     }
1414
1415		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1101 | Line 1422 | public class JSR166TestCase extends Test
1422		*/
1423		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1424		long startTime = System.nanoTime();
1425	+	T actual = null;
1426		try {
1427	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1427	>	actual = f.get(timeoutMillis, MILLISECONDS);
1428		} catch (Throwable fail) { threadUnexpectedException(fail); }
1429	+	assertEquals(expectedValue, actual);
1430		if (millisElapsedSince(startTime) > timeoutMillis/2)
1431	<	throw new AssertionFailedError("timed get did not return promptly");
1431	>	throw new AssertionError("timed get did not return promptly");
1432		}
1433
1434		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1132 | Line 1455 | public class JSR166TestCase extends Test
1455		t.join(timeoutMillis);
1456		} catch (InterruptedException fail) {
1457		threadUnexpectedException(fail);
1458	<	} finally {
1459	<	if (t.getState() != Thread.State.TERMINATED) {
1460	<	t.interrupt();
1461	<	fail("Test timed out");
1462	<	}
1458	>	}
1459	>	Thread.State state;
1460	>	if ((state = t.getState()) != Thread.State.TERMINATED) {
1461	>	t.interrupt();
1462	>	threadFail("timed out waiting for thread to terminate; "
1463	>	+ "state=" + state);
1464		}
1465		}
1466
#	Line 1163 | Line 1487 | public class JSR166TestCase extends Test
1487		}
1488		}
1489
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	–
1490		public abstract class ThreadShouldThrow extends Thread {
1491		protected abstract void realRun() throws Throwable;
1492
#	Line 1195 | Line 1499 | public class JSR166TestCase extends Test
1499		public final void run() {
1500		try {
1501		realRun();
1198	–	threadShouldThrow(exceptionClass.getSimpleName());
1502		} catch (Throwable t) {
1503		if (! exceptionClass.isInstance(t))
1504		threadUnexpectedException(t);
1505	+	return;
1506		}
1507	+	threadShouldThrow(exceptionClass.getSimpleName());
1508		}
1509		}
1510
#	Line 1209 | Line 1514 | public class JSR166TestCase extends Test
1514		public final void run() {
1515		try {
1516		realRun();
1212	–	threadShouldThrow("InterruptedException");
1517		} catch (InterruptedException success) {
1518		threadAssertFalse(Thread.interrupted());
1519	+	return;
1520		} catch (Throwable fail) {
1521		threadUnexpectedException(fail);
1522		}
1523	+	threadShouldThrow("InterruptedException");
1524		}
1525		}
1526
#	Line 1226 | Line 1532 | public class JSR166TestCase extends Test
1532		return realCall();
1533		} catch (Throwable fail) {
1534		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);
1535		}
1536	<	return null;
1536	>	throw new AssertionError("unreached");
1537		}
1538		}
1539
#	Line 1283 | Line 1571 | public class JSR166TestCase extends Test
1571		}};
1572		}
1573
1574	<	public Runnable awaiter(final CountDownLatch latch) {
1575	<	return new CheckedRunnable() {
1576	<	public void realRun() throws InterruptedException {
1577	<	await(latch);
1578	<	}};
1574	>	class LatchAwaiter extends CheckedRunnable {
1575	>	static final int NEW = 0;
1576	>	static final int RUNNING = 1;
1577	>	static final int DONE = 2;
1578	>	final CountDownLatch latch;
1579	>	int state = NEW;
1580	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1581	>	public void realRun() throws InterruptedException {
1582	>	state = 1;
1583	>	await(latch);
1584	>	state = 2;
1585	>	}
1586		}
1587
1588	<	public void await(CountDownLatch latch) {
1588	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1589	>	return new LatchAwaiter(latch);
1590	>	}
1591	>
1592	>	public void await(CountDownLatch latch, long timeoutMillis) {
1593	>	boolean timedOut = false;
1594		try {
1595	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1595	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1596		} catch (Throwable fail) {
1597		threadUnexpectedException(fail);
1598		}
1599	+	if (timedOut)
1600	+	fail("timed out waiting for CountDownLatch for "
1601	+	+ (timeoutMillis/1000) + " sec");
1602	+	}
1603	+
1604	+	public void await(CountDownLatch latch) {
1605	+	await(latch, LONG_DELAY_MS);
1606		}
1607
1608		public void await(Semaphore semaphore) {
1609	+	boolean timedOut = false;
1610		try {
1611	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1611	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1612	>	} catch (Throwable fail) {
1613	>	threadUnexpectedException(fail);
1614	>	}
1615	>	if (timedOut)
1616	>	fail("timed out waiting for Semaphore for "
1617	>	+ (LONG_DELAY_MS/1000) + " sec");
1618	>	}
1619	>
1620	>	public void await(CyclicBarrier barrier) {
1621	>	try {
1622	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1623		} catch (Throwable fail) {
1624		threadUnexpectedException(fail);
1625		}
#	Line 1320 | Line 1639 | public class JSR166TestCase extends Test
1639		//         long startTime = System.nanoTime();
1640		//         while (!flag.get()) {
1641		//             if (millisElapsedSince(startTime) > timeoutMillis)
1642	<	//                 throw new AssertionFailedError("timed out");
1642	>	//                 throw new AssertionError("timed out");
1643		//             Thread.yield();
1644		//         }
1645		//     }
#	Line 1329 | Line 1648 | public class JSR166TestCase extends Test
1648		public String call() { throw new NullPointerException(); }
1649		}
1650
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	–
1651		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1652		return new CheckedRunnable() {
1653		protected void realRun() {
#	Line 1387 | Line 1657 | public class JSR166TestCase extends Test
1657		}};
1658		}
1659
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	–
1660		/**
1661		* For use as ThreadFactory in constructors
1662		*/
#	Line 1416 | Line 1670 | public class JSR166TestCase extends Test
1670		boolean isDone();
1671		}
1672
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	–
1673		public static class TrackedNoOpRunnable implements Runnable {
1674		public volatile boolean done = false;
1675		public void run() {
#	Line 1476 | Line 1677 | public class JSR166TestCase extends Test
1677		}
1678		}
1679
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	–
1680		/**
1681		* Analog of CheckedRunnable for RecursiveAction
1682		*/
#	Line 1513 | Line 1703 | public class JSR166TestCase extends Test
1703		return realCompute();
1704		} catch (Throwable fail) {
1705		threadUnexpectedException(fail);
1516	–	return null;
1706		}
1707	+	throw new AssertionError("unreached");
1708		}
1709		}
1710
#	Line 1528 | Line 1718 | public class JSR166TestCase extends Test
1718
1719		/**
1720		* A CyclicBarrier that uses timed await and fails with
1721	<	* AssertionFailedErrors instead of throwing checked exceptions.
1721	>	* AssertionErrors instead of throwing checked exceptions.
1722		*/
1723	<	public class CheckedBarrier extends CyclicBarrier {
1723	>	public static class CheckedBarrier extends CyclicBarrier {
1724		public CheckedBarrier(int parties) { super(parties); }
1725
1726		public int await() {
1727		try {
1728		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1729		} catch (TimeoutException timedOut) {
1730	<	throw new AssertionFailedError("timed out");
1730	>	throw new AssertionError("timed out");
1731		} catch (Exception fail) {
1732	<	AssertionFailedError afe =
1543	<	new AssertionFailedError("Unexpected exception: " + fail);
1544	<	afe.initCause(fail);
1545	<	throw afe;
1732	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1733		}
1734		}
1735		}
#	Line 1553 | Line 1740 | public class JSR166TestCase extends Test
1740		assertEquals(0, q.size());
1741		assertNull(q.peek());
1742		assertNull(q.poll());
1743	<	assertNull(q.poll(0, MILLISECONDS));
1743	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1744		assertEquals(q.toString(), "[]");
1745		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1746		assertFalse(q.iterator().hasNext());
#	Line 1594 | Line 1781 | public class JSR166TestCase extends Test
1781		}
1782		}
1783
1784	+	void assertImmutable(Object o) {
1785	+	if (o instanceof Collection) {
1786	+	assertThrows(
1787	+	UnsupportedOperationException.class,
1788	+	() -> ((Collection) o).add(null));
1789	+	}
1790	+	}
1791	+
1792		@SuppressWarnings("unchecked")
1793		<T> T serialClone(T o) {
1794	+	T clone = null;
1795		try {
1796		ObjectInputStream ois = new ObjectInputStream
1797		(new ByteArrayInputStream(serialBytes(o)));
1798	<	T clone = (T) ois.readObject();
1603	<	assertSame(o.getClass(), clone.getClass());
1604	<	return clone;
1798	>	clone = (T) ois.readObject();
1799		} catch (Throwable fail) {
1800		threadUnexpectedException(fail);
1801	+	}
1802	+	if (o == clone) assertImmutable(o);
1803	+	else assertSame(o.getClass(), clone.getClass());
1804	+	return clone;
1805	+	}
1806	+
1807	+	/**
1808	+	* A version of serialClone that leaves error handling (for
1809	+	* e.g. NotSerializableException) up to the caller.
1810	+	*/
1811	+	@SuppressWarnings("unchecked")
1812	+	<T> T serialClonePossiblyFailing(T o)
1813	+	throws ReflectiveOperationException, java.io.IOException {
1814	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1815	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1816	+	oos.writeObject(o);
1817	+	oos.flush();
1818	+	oos.close();
1819	+	ObjectInputStream ois = new ObjectInputStream
1820	+	(new ByteArrayInputStream(bos.toByteArray()));
1821	+	T clone = (T) ois.readObject();
1822	+	if (o == clone) assertImmutable(o);
1823	+	else assertSame(o.getClass(), clone.getClass());
1824	+	return clone;
1825	+	}
1826	+
1827	+	/**
1828	+	* If o implements Cloneable and has a public clone method,
1829	+	* returns a clone of o, else null.
1830	+	*/
1831	+	@SuppressWarnings("unchecked")
1832	+	<T> T cloneableClone(T o) {
1833	+	if (!(o instanceof Cloneable)) return null;
1834	+	final T clone;
1835	+	try {
1836	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1837	+	} catch (NoSuchMethodException ok) {
1838		return null;
1839	+	} catch (ReflectiveOperationException unexpected) {
1840	+	throw new Error(unexpected);
1841		}
1842	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1843	+	assertSame(o.getClass(), clone.getClass());
1844	+	return clone;
1845		}
1846
1847		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1848	<	Runnable... throwingActions) {
1849	<	for (Runnable throwingAction : throwingActions) {
1848	>	Action... throwingActions) {
1849	>	for (Action throwingAction : throwingActions) {
1850		boolean threw = false;
1851		try { throwingAction.run(); }
1852		catch (Throwable t) {
1853		threw = true;
1854	<	if (!expectedExceptionClass.isInstance(t)) {
1855	<	AssertionFailedError afe =
1856	<	new AssertionFailedError
1857	<	("Expected " + expectedExceptionClass.getName() +
1858	<	", got " + t.getClass().getName());
1623	<	afe.initCause(t);
1624	<	threadUnexpectedException(afe);
1625	<	}
1854	>	if (!expectedExceptionClass.isInstance(t))
1855	>	throw new AssertionError(
1856	>	"Expected " + expectedExceptionClass.getName() +
1857	>	", got " + t.getClass().getName(),
1858	>	t);
1859		}
1860		if (!threw)
1861		shouldThrow(expectedExceptionClass.getName());
#	Line 1636 | Line 1869 | public class JSR166TestCase extends Test
1869		} catch (NoSuchElementException success) {}
1870		assertFalse(it.hasNext());
1871		}
1872	+
1873	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1874	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1875	+	}
1876	+
1877	+	public Runnable runnableThrowing(final RuntimeException ex) {
1878	+	return new Runnable() { public void run() { throw ex; }};
1879	+	}
1880	+
1881	+	/** A reusable thread pool to be shared by tests. */
1882	+	static final ExecutorService cachedThreadPool =
1883	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1884	+	1000L, MILLISECONDS,
1885	+	new SynchronousQueue<Runnable>());
1886	+
1887	+	static <T> void shuffle(T[] array) {
1888	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1889	+	}
1890	+
1891	+	/**
1892	+	* Returns the same String as would be returned by {@link
1893	+	* Object#toString}, whether or not the given object's class
1894	+	* overrides toString().
1895	+	*
1896	+	* @see System#identityHashCode
1897	+	*/
1898	+	static String identityString(Object x) {
1899	+	return x.getClass().getName()
1900	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1901	+	}
1902	+
1903	+	// --- Shared assertions for Executor tests ---
1904	+
1905	+	/**
1906	+	* Returns maximum number of tasks that can be submitted to given
1907	+	* pool (with bounded queue) before saturation (when submission
1908	+	* throws RejectedExecutionException).
1909	+	*/
1910	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1911	+	BlockingQueue<Runnable> q = pool.getQueue();
1912	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1913	+	}
1914	+
1915	+	@SuppressWarnings("FutureReturnValueIgnored")
1916	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1917	+	try {
1918	+	e.execute((Runnable) null);
1919	+	shouldThrow();
1920	+	} catch (NullPointerException success) {}
1921	+
1922	+	if (! (e instanceof ExecutorService)) return;
1923	+	ExecutorService es = (ExecutorService) e;
1924	+	try {
1925	+	es.submit((Runnable) null);
1926	+	shouldThrow();
1927	+	} catch (NullPointerException success) {}
1928	+	try {
1929	+	es.submit((Runnable) null, Boolean.TRUE);
1930	+	shouldThrow();
1931	+	} catch (NullPointerException success) {}
1932	+	try {
1933	+	es.submit((Callable) null);
1934	+	shouldThrow();
1935	+	} catch (NullPointerException success) {}
1936	+
1937	+	if (! (e instanceof ScheduledExecutorService)) return;
1938	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1939	+	try {
1940	+	ses.schedule((Runnable) null,
1941	+	randomTimeout(), randomTimeUnit());
1942	+	shouldThrow();
1943	+	} catch (NullPointerException success) {}
1944	+	try {
1945	+	ses.schedule((Callable) null,
1946	+	randomTimeout(), randomTimeUnit());
1947	+	shouldThrow();
1948	+	} catch (NullPointerException success) {}
1949	+	try {
1950	+	ses.scheduleAtFixedRate((Runnable) null,
1951	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1952	+	shouldThrow();
1953	+	} catch (NullPointerException success) {}
1954	+	try {
1955	+	ses.scheduleWithFixedDelay((Runnable) null,
1956	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1957	+	shouldThrow();
1958	+	} catch (NullPointerException success) {}
1959	+	}
1960	+
1961	+	void setRejectedExecutionHandler(
1962	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1963	+	p.setRejectedExecutionHandler(handler);
1964	+	assertSame(handler, p.getRejectedExecutionHandler());
1965	+	}
1966	+
1967	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1968	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1969	+	final long savedTaskCount = p.getTaskCount();
1970	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1971	+	final int savedQueueSize = p.getQueue().size();
1972	+	final boolean stock = (p.getClass().getClassLoader() == null);
1973	+
1974	+	Runnable r = () -> {};
1975	+	Callable<Boolean> c = () -> Boolean.TRUE;
1976	+
1977	+	class Recorder implements RejectedExecutionHandler {
1978	+	public volatile Runnable r = null;
1979	+	public volatile ThreadPoolExecutor p = null;
1980	+	public void reset() { r = null; p = null; }
1981	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1982	+	assertNull(this.r);
1983	+	assertNull(this.p);
1984	+	this.r = r;
1985	+	this.p = p;
1986	+	}
1987	+	}
1988	+
1989	+	// check custom handler is invoked exactly once per task
1990	+	Recorder recorder = new Recorder();
1991	+	setRejectedExecutionHandler(p, recorder);
1992	+	for (int i = 2; i--> 0; ) {
1993	+	recorder.reset();
1994	+	p.execute(r);
1995	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1996	+	assertSame(r, recorder.r);
1997	+	assertSame(p, recorder.p);
1998	+
1999	+	recorder.reset();
2000	+	assertFalse(p.submit(r).isDone());
2001	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2002	+	assertSame(p, recorder.p);
2003	+
2004	+	recorder.reset();
2005	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2006	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2007	+	assertSame(p, recorder.p);
2008	+
2009	+	recorder.reset();
2010	+	assertFalse(p.submit(c).isDone());
2011	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2012	+	assertSame(p, recorder.p);
2013	+
2014	+	if (p instanceof ScheduledExecutorService) {
2015	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2016	+	ScheduledFuture<?> future;
2017	+
2018	+	recorder.reset();
2019	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2020	+	assertFalse(future.isDone());
2021	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2022	+	assertSame(p, recorder.p);
2023	+
2024	+	recorder.reset();
2025	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2026	+	assertFalse(future.isDone());
2027	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2028	+	assertSame(p, recorder.p);
2029	+
2030	+	recorder.reset();
2031	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2032	+	assertFalse(future.isDone());
2033	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2034	+	assertSame(p, recorder.p);
2035	+
2036	+	recorder.reset();
2037	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2038	+	assertFalse(future.isDone());
2039	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2040	+	assertSame(p, recorder.p);
2041	+	}
2042	+	}
2043	+
2044	+	// Checking our custom handler above should be sufficient, but
2045	+	// we add some integration tests of standard handlers.
2046	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2047	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2048	+
2049	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2050	+	try {
2051	+	p.execute(setThread);
2052	+	shouldThrow();
2053	+	} catch (RejectedExecutionException success) {}
2054	+	assertNull(thread.get());
2055	+
2056	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2057	+	p.execute(setThread);
2058	+	assertNull(thread.get());
2059	+
2060	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2061	+	p.execute(setThread);
2062	+	if (p.isShutdown())
2063	+	assertNull(thread.get());
2064	+	else
2065	+	assertSame(Thread.currentThread(), thread.get());
2066	+
2067	+	setRejectedExecutionHandler(p, savedHandler);
2068	+
2069	+	// check that pool was not perturbed by handlers
2070	+	assertEquals(savedTaskCount, p.getTaskCount());
2071	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2072	+	assertEquals(savedQueueSize, p.getQueue().size());
2073	+	}
2074	+
2075	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2076	+	assertEquals(x, y);
2077	+	assertEquals(y, x);
2078	+	assertEquals(x.isEmpty(), y.isEmpty());
2079	+	assertEquals(x.size(), y.size());
2080	+	if (x instanceof List) {
2081	+	assertEquals(x.toString(), y.toString());
2082	+	}
2083	+	if (x instanceof List || x instanceof Set) {
2084	+	assertEquals(x.hashCode(), y.hashCode());
2085	+	}
2086	+	if (x instanceof List || x instanceof Deque) {
2087	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2088	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2089	+	y.toArray(new Object[0])));
2090	+	}
2091	+	}
2092	+
2093	+	/**
2094	+	* A weaker form of assertCollectionsEquals which does not insist
2095	+	* that the two collections satisfy Object#equals(Object), since
2096	+	* they may use identity semantics as Deques do.
2097	+	*/
2098	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2099	+	if (x instanceof List || x instanceof Set)
2100	+	assertCollectionsEquals(x, y);
2101	+	else {
2102	+	assertEquals(x.isEmpty(), y.isEmpty());
2103	+	assertEquals(x.size(), y.size());
2104	+	assertEquals(new HashSet(x), new HashSet(y));
2105	+	if (x instanceof Deque) {
2106	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2107	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2108	+	y.toArray(new Object[0])));
2109	+	}
2110	+	}
2111	+	}
2112		}

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