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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.145 by jsr166, Fri Sep 25 05:41:29 2015 UTC vs.
Revision 1.236 by jsr166, Wed Aug 16 17:18:34 2017 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 15 | Line 50 | import java.io.ObjectInputStream;
50		import java.io.ObjectOutputStream;
51		import java.lang.management.ManagementFactory;
52		import java.lang.management.ThreadInfo;
53	+	import java.lang.management.ThreadMXBean;
54		import java.lang.reflect.Constructor;
55		import java.lang.reflect.Method;
56		import java.lang.reflect.Modifier;
#	Line 27 | 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.Enumeration;
70		import java.util.Iterator;
#	Line 38 | Line 76 | import java.util.concurrent.Callable;
76		import java.util.concurrent.CountDownLatch;
77		import java.util.concurrent.CyclicBarrier;
78		import java.util.concurrent.ExecutionException;
79	+	import java.util.concurrent.Executor;
80		import java.util.concurrent.Executors;
81		import java.util.concurrent.ExecutorService;
82	+	import java.util.concurrent.ForkJoinPool;
83		import java.util.concurrent.Future;
84	+	import java.util.concurrent.FutureTask;
85		import java.util.concurrent.RecursiveAction;
86		import java.util.concurrent.RecursiveTask;
87	+	import java.util.concurrent.RejectedExecutionException;
88		import java.util.concurrent.RejectedExecutionHandler;
89		import java.util.concurrent.Semaphore;
90	+	import java.util.concurrent.ScheduledExecutorService;
91	+	import java.util.concurrent.ScheduledFuture;
92	+	import java.util.concurrent.SynchronousQueue;
93		import java.util.concurrent.ThreadFactory;
94	+	import java.util.concurrent.ThreadLocalRandom;
95		import java.util.concurrent.ThreadPoolExecutor;
96	+	import java.util.concurrent.TimeUnit;
97		import java.util.concurrent.TimeoutException;
98	+	import java.util.concurrent.atomic.AtomicBoolean;
99		import java.util.concurrent.atomic.AtomicReference;
100		import java.util.regex.Pattern;
101
#	Line 106 | Line 154 | import junit.framework.TestSuite;
154		* methods as there are exceptions the method can throw. Sometimes
155		* there are multiple tests per JSR166 method when the different
156		* "normal" behaviors differ significantly. And sometimes testcases
157	<	* cover multiple methods when they cannot be tested in
110	<	* isolation.
157	>	* cover multiple methods when they cannot be tested in isolation.
158		*
159		* <li>The documentation style for testcases is to provide as javadoc
160		* a simple sentence or two describing the property that the testcase
#	Line 170 | Line 217 | public class JSR166TestCase extends Test
217		private static final int suiteRuns =
218		Integer.getInteger("jsr166.suiteRuns", 1);
219
220	+	/**
221	+	* Returns the value of the system property, or NaN if not defined.
222	+	*/
223	+	private static float systemPropertyValue(String name) {
224	+	String floatString = System.getProperty(name);
225	+	if (floatString == null)
226	+	return Float.NaN;
227	+	try {
228	+	return Float.parseFloat(floatString);
229	+	} catch (NumberFormatException ex) {
230	+	throw new IllegalArgumentException(
231	+	String.format("Bad float value in system property %s=%s",
232	+	name, floatString));
233	+	}
234	+	}
235	+
236	+	/**
237	+	* The scaling factor to apply to standard delays used in tests.
238	+	* May be initialized from any of:
239	+	* - the "jsr166.delay.factor" system property
240	+	* - the "test.timeout.factor" system property (as used by jtreg)
241	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
242	+	* - hard-coded fuzz factor when using a known slowpoke VM
243	+	*/
244	+	private static final float delayFactor = delayFactor();
245	+
246	+	private static float delayFactor() {
247	+	float x;
248	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
249	+	return x;
250	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
251	+	return x;
252	+	String prop = System.getProperty("java.vm.version");
253	+	if (prop != null && prop.matches(".*debug.*"))
254	+	return 4.0f; // How much slower is fastdebug than product?!
255	+	return 1.0f;
256	+	}
257	+
258		public JSR166TestCase() { super(); }
259		public JSR166TestCase(String name) { super(name); }
260
#	Line 185 | Line 270 | public class JSR166TestCase extends Test
270		return (regex == null) ? null : Pattern.compile(regex);
271		}
272
273	<	protected void runTest() throws Throwable {
273	>	// Instrumentation to debug very rare, but very annoying hung test runs.
274	>	static volatile TestCase currentTestCase;
275	>	// static volatile int currentRun = 0;
276	>	static {
277	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
278	>	// Avoid spurious reports with enormous runsPerTest.
279	>	// A single test case run should never take more than 1 second.
280	>	// But let's cap it at the high end too ...
281	>	final int timeoutMinutes =
282	>	Math.min(15, Math.max(runsPerTest / 60, 1));
283	>	for (TestCase lastTestCase = currentTestCase;;) {
284	>	try { MINUTES.sleep(timeoutMinutes); }
285	>	catch (InterruptedException unexpected) { break; }
286	>	if (lastTestCase == currentTestCase) {
287	>	System.err.printf(
288	>	"Looks like we're stuck running test: %s%n",
289	>	lastTestCase);
290	>	//                     System.err.printf(
291	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
292	>	//                         lastTestCase, currentRun, runsPerTest);
293	>	//                     System.err.println("availableProcessors=" +
294	>	//                         Runtime.getRuntime().availableProcessors());
295	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
296	>	dumpTestThreads();
297	>	// one stack dump is probably enough; more would be spam
298	>	break;
299	>	}
300	>	lastTestCase = currentTestCase;
301	>	}}};
302	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
303	>	thread.setDaemon(true);
304	>	thread.start();
305	>	}
306	>
307	>	//     public static String cpuModel() {
308	>	//         try {
309	>	//             java.util.regex.Matcher matcher
310	>	//               = Pattern.compile("model name\\s*: (.*)")
311	>	//                 .matcher(new String(
312	>	//                     java.nio.file.Files.readAllBytes(
313	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
314	>	//             matcher.find();
315	>	//             return matcher.group(1);
316	>	//         } catch (Exception ex) { return null; }
317	>	//     }
318	>
319	>	public void runBare() throws Throwable {
320	>	currentTestCase = this;
321		if (methodFilter == null
322	<	|| methodFilter.matcher(toString()).find()) {
323	<	for (int i = 0; i < runsPerTest; i++) {
324	<	if (profileTests)
325	<	runTestProfiled();
326	<	else
327	<	super.runTest();
328	<	}
322	>	|| methodFilter.matcher(toString()).find())
323	>	super.runBare();
324	>	}
325	>
326	>	protected void runTest() throws Throwable {
327	>	for (int i = 0; i < runsPerTest; i++) {
328	>	// currentRun = i;
329	>	if (profileTests)
330	>	runTestProfiled();
331	>	else
332	>	super.runTest();
333		}
334		}
335
#	Line 218 | Line 354 | public class JSR166TestCase extends Test
354		main(suite(), args);
355		}
356
357	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
358	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
359	+	long runTime;
360	+	public void startTest(Test test) {}
361	+	protected void printHeader(long runTime) {
362	+	this.runTime = runTime; // defer printing for later
363	+	}
364	+	protected void printFooter(TestResult result) {
365	+	if (result.wasSuccessful()) {
366	+	getWriter().println("OK (" + result.runCount() + " tests)"
367	+	+ "  Time: " + elapsedTimeAsString(runTime));
368	+	} else {
369	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
370	+	super.printFooter(result);
371	+	}
372	+	}
373	+	}
374	+
375	+	/**
376	+	* Returns a TestRunner that doesn't bother with unnecessary
377	+	* fluff, like printing a "." for each test case.
378	+	*/
379	+	static junit.textui.TestRunner newPithyTestRunner() {
380	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
381	+	runner.setPrinter(new PithyResultPrinter(System.out));
382	+	return runner;
383	+	}
384	+
385		/**
386		* Runs all unit tests in the given test suite.
387		* Actual behavior influenced by jsr166.* system properties.
#	Line 229 | Line 393 | public class JSR166TestCase extends Test
393		System.setSecurityManager(new SecurityManager());
394		}
395		for (int i = 0; i < suiteRuns; i++) {
396	<	TestResult result = junit.textui.TestRunner.run(suite);
396	>	TestResult result = newPithyTestRunner().doRun(suite);
397		if (!result.wasSuccessful())
398		System.exit(1);
399		System.gc();
#	Line 313 | Line 477 | public class JSR166TestCase extends Test
477		AbstractQueuedLongSynchronizerTest.suite(),
478		ArrayBlockingQueueTest.suite(),
479		ArrayDequeTest.suite(),
480	+	ArrayListTest.suite(),
481		AtomicBooleanTest.suite(),
482		AtomicIntegerArrayTest.suite(),
483		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 335 | Line 500 | public class JSR166TestCase extends Test
500		CopyOnWriteArrayListTest.suite(),
501		CopyOnWriteArraySetTest.suite(),
502		CountDownLatchTest.suite(),
503	+	CountedCompleterTest.suite(),
504		CyclicBarrierTest.suite(),
505		DelayQueueTest.suite(),
506		EntryTest.suite(),
#	Line 363 | Line 529 | public class JSR166TestCase extends Test
529		TreeMapTest.suite(),
530		TreeSetTest.suite(),
531		TreeSubMapTest.suite(),
532	<	TreeSubSetTest.suite());
532	>	TreeSubSetTest.suite(),
533	>	VectorTest.suite());
534
535		// Java8+ test classes
536		if (atLeastJava8()) {
537		String[] java8TestClassNames = {
538	+	"ArrayDeque8Test",
539		"Atomic8Test",
540		"CompletableFutureTest",
541		"ConcurrentHashMap8Test",
542	<	"CountedCompleterTest",
542	>	"CountedCompleter8Test",
543		"DoubleAccumulatorTest",
544		"DoubleAdderTest",
545		"ForkJoinPool8Test",
546		"ForkJoinTask8Test",
547	+	"LinkedBlockingDeque8Test",
548	+	"LinkedBlockingQueue8Test",
549		"LongAccumulatorTest",
550		"LongAdderTest",
551		"SplittableRandomTest",
552		"StampedLockTest",
553		"SubmissionPublisherTest",
554		"ThreadLocalRandom8Test",
555	+	"TimeUnit8Test",
556		};
557		addNamedTestClasses(suite, java8TestClassNames);
558		}
#	Line 389 | Line 560 | public class JSR166TestCase extends Test
560		// Java9+ test classes
561		if (atLeastJava9()) {
562		String[] java9TestClassNames = {
563	<	// Currently empty, but expecting varhandle tests
563	>	"AtomicBoolean9Test",
564	>	"AtomicInteger9Test",
565	>	"AtomicIntegerArray9Test",
566	>	"AtomicLong9Test",
567	>	"AtomicLongArray9Test",
568	>	"AtomicReference9Test",
569	>	"AtomicReferenceArray9Test",
570	>	"ExecutorCompletionService9Test",
571	>	"ForkJoinPool9Test",
572		};
573		addNamedTestClasses(suite, java9TestClassNames);
574		}
#	Line 400 | Line 579 | public class JSR166TestCase extends Test
579		/** Returns list of junit-style test method names in given class. */
580		public static ArrayList<String> testMethodNames(Class<?> testClass) {
581		Method[] methods = testClass.getDeclaredMethods();
582	<	ArrayList<String> names = new ArrayList<String>(methods.length);
582	>	ArrayList<String> names = new ArrayList<>(methods.length);
583		for (Method method : methods) {
584		if (method.getName().startsWith("test")
585		&& Modifier.isPublic(method.getModifiers())
#	Line 456 | Line 635 | public class JSR166TestCase extends Test
635		} else {
636		return new TestSuite();
637		}
459	–
638		}
639
640		// Delays for timing-dependent tests, in milliseconds.
#	Line 466 | Line 644 | public class JSR166TestCase extends Test
644		public static long MEDIUM_DELAY_MS;
645		public static long LONG_DELAY_MS;
646
647	+	private static final long RANDOM_TIMEOUT;
648	+	private static final long RANDOM_EXPIRED_TIMEOUT;
649	+	private static final TimeUnit RANDOM_TIMEUNIT;
650	+	static {
651	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
652	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
653	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
654	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
655	+	TimeUnit[] timeUnits = TimeUnit.values();
656	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
657	+	}
658	+
659	+	/**
660	+	* Returns a timeout for use when any value at all will do.
661	+	*/
662	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
663	+
664	+	/**
665	+	* Returns a timeout that means "no waiting", i.e. not positive.
666	+	*/
667	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
668	+
669		/**
670	<	* Returns the shortest timed delay. This could
671	<	* be reimplemented to use for example a Property.
670	>	* Returns a random non-null TimeUnit.
671	>	*/
672	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
673	>
674	>	/**
675	>	* Returns the shortest timed delay. This can be scaled up for
676	>	* slow machines using the jsr166.delay.factor system property,
677	>	* or via jtreg's -timeoutFactor: flag.
678	>	* http://openjdk.java.net/jtreg/command-help.html
679		*/
680		protected long getShortDelay() {
681	<	return 50;
681	>	return (long) (50 * delayFactor);
682		}
683
684		/**
#	Line 484 | Line 691 | public class JSR166TestCase extends Test
691		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
692		}
693
694	+	private static final long TIMEOUT_DELAY_MS
695	+	= (long) (12.0 * Math.cbrt(delayFactor));
696	+
697		/**
698	<	* Returns a timeout in milliseconds to be used in tests that
699	<	* verify that operations block or time out.
698	>	* Returns a timeout in milliseconds to be used in tests that verify
699	>	* that operations block or time out.  We want this to be longer
700	>	* than the OS scheduling quantum, but not too long, so don't scale
701	>	* linearly with delayFactor; we use "crazy" cube root instead.
702		*/
703	<	long timeoutMillis() {
704	<	return SHORT_DELAY_MS / 4;
703	>	static long timeoutMillis() {
704	>	return TIMEOUT_DELAY_MS;
705		}
706
707		/**
#	Line 505 | Line 717 | public class JSR166TestCase extends Test
717		* The first exception encountered if any threadAssertXXX method fails.
718		*/
719		private final AtomicReference<Throwable> threadFailure
720	<	= new AtomicReference<Throwable>(null);
720	>	= new AtomicReference<>(null);
721
722		/**
723		* Records an exception so that it can be rethrown later in the test
#	Line 514 | Line 726 | public class JSR166TestCase extends Test
726		* the same test have no effect.
727		*/
728		public void threadRecordFailure(Throwable t) {
729	+	System.err.println(t);
730	+	dumpTestThreads();
731		threadFailure.compareAndSet(null, t);
732		}
733
#	Line 521 | Line 735 | public class JSR166TestCase extends Test
735		setDelays();
736		}
737
738	+	void tearDownFail(String format, Object... args) {
739	+	String msg = toString() + ": " + String.format(format, args);
740	+	System.err.println(msg);
741	+	dumpTestThreads();
742	+	throw new AssertionFailedError(msg);
743	+	}
744	+
745		/**
746		* Extra checks that get done for all test cases.
747		*
#	Line 548 | Line 769 | public class JSR166TestCase extends Test
769		}
770
771		if (Thread.interrupted())
772	<	throw new AssertionFailedError("interrupt status set in main thread");
772	>	tearDownFail("interrupt status set in main thread");
773
774		checkForkJoinPoolThreadLeaks();
775		}
776
777		/**
778	<	* Finds missing try { ... } finally { joinPool(e); }
778	>	* Finds missing PoolCleaners
779		*/
780		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
781	<	Thread[] survivors = new Thread[5];
781	>	Thread[] survivors = new Thread[7];
782		int count = Thread.enumerate(survivors);
783		for (int i = 0; i < count; i++) {
784		Thread thread = survivors[i];
#	Line 565 | Line 786 | public class JSR166TestCase extends Test
786		if (name.startsWith("ForkJoinPool-")) {
787		// give thread some time to terminate
788		thread.join(LONG_DELAY_MS);
789	<	if (!thread.isAlive()) continue;
790	<	throw new AssertionFailedError
791	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
571	<	toString(), name));
789	>	if (thread.isAlive())
790	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
791	>	thread);
792		}
793		}
794	+
795	+	if (!ForkJoinPool.commonPool()
796	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
797	+	tearDownFail("ForkJoin common pool thread stuck");
798		}
799
800		/**
#	Line 583 | Line 807 | public class JSR166TestCase extends Test
807		fail(reason);
808		} catch (AssertionFailedError t) {
809		threadRecordFailure(t);
810	<	fail(reason);
810	>	throw t;
811		}
812		}
813
#	Line 710 | Line 934 | public class JSR166TestCase extends Test
934		/**
935		* Delays, via Thread.sleep, for the given millisecond delay, but
936		* if the sleep is shorter than specified, may re-sleep or yield
937	<	* until time elapses.
937	>	* until time elapses.  Ensures that the given time, as measured
938	>	* by System.nanoTime(), has elapsed.
939		*/
940		static void delay(long millis) throws InterruptedException {
941	<	long startTime = System.nanoTime();
942	<	long ns = millis * 1000 * 1000;
943	<	for (;;) {
941	>	long nanos = millis * (1000 * 1000);
942	>	final long wakeupTime = System.nanoTime() + nanos;
943	>	do {
944		if (millis > 0L)
945		Thread.sleep(millis);
946		else // too short to sleep
947		Thread.yield();
948	<	long d = ns - (System.nanoTime() - startTime);
949	<	if (d > 0L)
950	<	millis = d / (1000 * 1000);
951	<	else
952	<	break;
948	>	nanos = wakeupTime - System.nanoTime();
949	>	millis = nanos / (1000 * 1000);
950	>	} while (nanos >= 0L);
951	>	}
952	>
953	>	/**
954	>	* Allows use of try-with-resources with per-test thread pools.
955	>	*/
956	>	class PoolCleaner implements AutoCloseable {
957	>	private final ExecutorService pool;
958	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
959	>	public void close() { joinPool(pool); }
960	>	}
961	>
962	>	/**
963	>	* An extension of PoolCleaner that has an action to release the pool.
964	>	*/
965	>	class PoolCleanerWithReleaser extends PoolCleaner {
966	>	private final Runnable releaser;
967	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
968	>	super(pool);
969	>	this.releaser = releaser;
970	>	}
971	>	public void close() {
972	>	try {
973	>	releaser.run();
974	>	} finally {
975	>	super.close();
976	>	}
977		}
978		}
979
980	+	PoolCleaner cleaner(ExecutorService pool) {
981	+	return new PoolCleaner(pool);
982	+	}
983	+
984	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
985	+	return new PoolCleanerWithReleaser(pool, releaser);
986	+	}
987	+
988	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
989	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
990	+	}
991	+
992	+	Runnable releaser(final CountDownLatch latch) {
993	+	return new Runnable() { public void run() {
994	+	do { latch.countDown(); }
995	+	while (latch.getCount() > 0);
996	+	}};
997	+	}
998	+
999	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1000	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1001	+	}
1002	+
1003	+	Runnable releaser(final AtomicBoolean flag) {
1004	+	return new Runnable() { public void run() { flag.set(true); }};
1005	+	}
1006	+
1007		/**
1008		* Waits out termination of a thread pool or fails doing so.
1009		*/
1010		void joinPool(ExecutorService pool) {
1011		try {
1012		pool.shutdown();
1013	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1014	<	fail("ExecutorService " + pool +
1015	<	" did not terminate in a timely manner");
1013	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1014	>	try {
1015	>	threadFail("ExecutorService " + pool +
1016	>	" did not terminate in a timely manner");
1017	>	} finally {
1018	>	// last resort, for the benefit of subsequent tests
1019	>	pool.shutdownNow();
1020	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1021	>	}
1022	>	}
1023		} catch (SecurityException ok) {
1024		// Allowed in case test doesn't have privs
1025		} catch (InterruptedException fail) {
1026	<	fail("Unexpected InterruptedException");
1026	>	threadFail("Unexpected InterruptedException");
1027		}
1028		}
1029
1030	<	/** Like Runnable, but with the freedom to throw anything */
1030	>	/**
1031	>	* Like Runnable, but with the freedom to throw anything.
1032	>	* junit folks had the same idea:
1033	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1034	>	*/
1035		interface Action { public void run() throws Throwable; }
1036
1037		/**
#	Line 754 | Line 1041 | public class JSR166TestCase extends Test
1041		*/
1042		void testInParallel(Action ... actions) {
1043		ExecutorService pool = Executors.newCachedThreadPool();
1044	<	try {
1044	>	try (PoolCleaner cleaner = cleaner(pool)) {
1045		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1046		for (final Action action : actions)
1047		futures.add(pool.submit(new CheckedRunnable() {
#	Line 767 | Line 1054 | public class JSR166TestCase extends Test
1054		} catch (Exception ex) {
1055		threadUnexpectedException(ex);
1056		}
770	–	} finally {
771	–	joinPool(pool);
1057		}
1058		}
1059
1060		/**
1061	<	* A debugging tool to print all stack traces, as jstack does.
1061	>	* A debugging tool to print stack traces of most threads, as jstack does.
1062	>	* Uninteresting threads are filtered out.
1063		*/
1064	<	static void printAllStackTraces() {
1065	<	for (ThreadInfo info :
1066	<	ManagementFactory.getThreadMXBean()
1067	<	.dumpAllThreads(true, true))
1068	<	System.err.print(info);
1069	<	}
1070	<
1071	<	/**
1072	<	* Checks that thread does not terminate within the default
787	<	* millisecond delay of {@code timeoutMillis()}.
788	<	*/
789	<	void assertThreadStaysAlive(Thread thread) {
790	<	assertThreadStaysAlive(thread, timeoutMillis());
791	<	}
1064	>	static void dumpTestThreads() {
1065	>	SecurityManager sm = System.getSecurityManager();
1066	>	if (sm != null) {
1067	>	try {
1068	>	System.setSecurityManager(null);
1069	>	} catch (SecurityException giveUp) {
1070	>	return;
1071	>	}
1072	>	}
1073
1074	<	/**
1075	<	* Checks that thread does not terminate within the given millisecond delay.
1076	<	*/
1077	<	void assertThreadStaysAlive(Thread thread, long millis) {
1078	<	try {
1079	<	// No need to optimize the failing case via Thread.join.
1080	<	delay(millis);
1081	<	assertTrue(thread.isAlive());
1082	<	} catch (InterruptedException fail) {
1083	<	fail("Unexpected InterruptedException");
1074	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1075	>	System.err.println("------ stacktrace dump start ------");
1076	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1077	>	final String name = info.getThreadName();
1078	>	String lockName;
1079	>	if ("Signal Dispatcher".equals(name))
1080	>	continue;
1081	>	if ("Reference Handler".equals(name)
1082	>	&& (lockName = info.getLockName()) != null
1083	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1084	>	continue;
1085	>	if ("Finalizer".equals(name)
1086	>	&& (lockName = info.getLockName()) != null
1087	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1088	>	continue;
1089	>	if ("checkForWedgedTest".equals(name))
1090	>	continue;
1091	>	System.err.print(info);
1092		}
1093	<	}
1093	>	System.err.println("------ stacktrace dump end ------");
1094
1095	<	/**
807	<	* Checks that the threads do not terminate within the default
808	<	* millisecond delay of {@code timeoutMillis()}.
809	<	*/
810	<	void assertThreadsStayAlive(Thread... threads) {
811	<	assertThreadsStayAlive(timeoutMillis(), threads);
1095	>	if (sm != null) System.setSecurityManager(sm);
1096		}
1097
1098		/**
1099	<	* Checks that the threads do not terminate within the given millisecond delay.
1099	>	* Checks that thread eventually enters the expected blocked thread state.
1100		*/
1101	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1102	<	try {
1103	<	// No need to optimize the failing case via Thread.join.
1104	<	delay(millis);
1105	<	for (Thread thread : threads)
1106	<	assertTrue(thread.isAlive());
1107	<	} catch (InterruptedException fail) {
1108	<	fail("Unexpected InterruptedException");
1101	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1102	>	// always sleep at least 1 ms, with high probability avoiding
1103	>	// transitory states
1104	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1105	>	try { delay(1); }
1106	>	catch (InterruptedException fail) {
1107	>	fail("Unexpected InterruptedException");
1108	>	}
1109	>	Thread.State s = thread.getState();
1110	>	if (s == expected)
1111	>	return;
1112	>	else if (s == Thread.State.TERMINATED)
1113	>	fail("Unexpected thread termination");
1114		}
1115	+	fail("timed out waiting for thread to enter thread state " + expected);
1116		}
1117
1118		/**
#	Line 863 | Line 1153 | public class JSR166TestCase extends Test
1153		}
1154
1155		/**
1156	+	* The maximum number of consecutive spurious wakeups we should
1157	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1158	+	*/
1159	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1160	+
1161	+	/**
1162		* The number of elements to place in collections, arrays, etc.
1163		*/
1164		public static final int SIZE = 20;
#	Line 966 | Line 1262 | public class JSR166TestCase extends Test
1262		}
1263		public void refresh() {}
1264		public String toString() {
1265	<	List<Permission> ps = new ArrayList<Permission>();
1265	>	List<Permission> ps = new ArrayList<>();
1266		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1267		ps.add(e.nextElement());
1268		return "AdjustablePolicy with permissions " + ps;
#	Line 996 | Line 1292 | public class JSR166TestCase extends Test
1292		* Sleeps until the given time has elapsed.
1293		* Throws AssertionFailedError if interrupted.
1294		*/
1295	<	void sleep(long millis) {
1295	>	static void sleep(long millis) {
1296		try {
1297		delay(millis);
1298		} catch (InterruptedException fail) {
#	Line 1012 | Line 1308 | public class JSR166TestCase extends Test
1308		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1309		*/
1310		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1311	<	long startTime = System.nanoTime();
1311	>	long startTime = 0L;
1312		for (;;) {
1313		Thread.State s = thread.getState();
1314		if (s == Thread.State.BLOCKED ||
#	Line 1021 | Line 1317 | public class JSR166TestCase extends Test
1317		return;
1318		else if (s == Thread.State.TERMINATED)
1319		fail("Unexpected thread termination");
1320	+	else if (startTime == 0L)
1321	+	startTime = System.nanoTime();
1322		else if (millisElapsedSince(startTime) > timeoutMillis) {
1323		threadAssertTrue(thread.isAlive());
1324	<	return;
1324	>	fail("timed out waiting for thread to enter wait state");
1325	>	}
1326	>	Thread.yield();
1327	>	}
1328	>	}
1329	>
1330	>	/**
1331	>	* Spin-waits up to the specified number of milliseconds for the given
1332	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1333	>	* and additionally satisfy the given condition.
1334	>	*/
1335	>	void waitForThreadToEnterWaitState(
1336	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1337	>	long startTime = 0L;
1338	>	for (;;) {
1339	>	Thread.State s = thread.getState();
1340	>	if (s == Thread.State.BLOCKED ||
1341	>	s == Thread.State.WAITING ||
1342	>	s == Thread.State.TIMED_WAITING) {
1343	>	try {
1344	>	if (waitingForGodot.call())
1345	>	return;
1346	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1347	>	}
1348	>	else if (s == Thread.State.TERMINATED)
1349	>	fail("Unexpected thread termination");
1350	>	else if (startTime == 0L)
1351	>	startTime = System.nanoTime();
1352	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1353	>	threadAssertTrue(thread.isAlive());
1354	>	fail("timed out waiting for thread to enter wait state");
1355		}
1356		Thread.yield();
1357		}
1358		}
1359
1360		/**
1361	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1362	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1361	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1362	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1363		*/
1364		void waitForThreadToEnterWaitState(Thread thread) {
1365		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1366		}
1367
1368		/**
1369	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1370	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1371	+	* and additionally satisfy the given condition.
1372	+	*/
1373	+	void waitForThreadToEnterWaitState(
1374	+	Thread thread, Callable<Boolean> waitingForGodot) {
1375	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1376	+	}
1377	+
1378	+	/**
1379		* Returns the number of milliseconds since time given by
1380		* startNanoTime, which must have been previously returned from a
1381		* call to {@link System#nanoTime()}.
#	Line 1099 | 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 1240 | Line 1578 | public class JSR166TestCase extends Test
1578		}};
1579		}
1580
1581	<	public Runnable awaiter(final CountDownLatch latch) {
1581	>	public Runnable countDowner(final CountDownLatch latch) {
1582		return new CheckedRunnable() {
1583		public void realRun() throws InterruptedException {
1584	<	await(latch);
1584	>	latch.countDown();
1585		}};
1586		}
1587
1588	<	public void await(CountDownLatch latch) {
1588	>	class LatchAwaiter extends CheckedRunnable {
1589	>	static final int NEW = 0;
1590	>	static final int RUNNING = 1;
1591	>	static final int DONE = 2;
1592	>	final CountDownLatch latch;
1593	>	int state = NEW;
1594	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1595	>	public void realRun() throws InterruptedException {
1596	>	state = 1;
1597	>	await(latch);
1598	>	state = 2;
1599	>	}
1600	>	}
1601	>
1602	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1603	>	return new LatchAwaiter(latch);
1604	>	}
1605	>
1606	>	public void await(CountDownLatch latch, long timeoutMillis) {
1607		try {
1608	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1608	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1609	>	fail("timed out waiting for CountDownLatch for "
1610	>	+ (timeoutMillis/1000) + " sec");
1611		} catch (Throwable fail) {
1612		threadUnexpectedException(fail);
1613		}
1614		}
1615
1616	+	public void await(CountDownLatch latch) {
1617	+	await(latch, LONG_DELAY_MS);
1618	+	}
1619	+
1620		public void await(Semaphore semaphore) {
1621		try {
1622	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1622	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1623	>	fail("timed out waiting for Semaphore for "
1624	>	+ (LONG_DELAY_MS/1000) + " sec");
1625	>	} catch (Throwable fail) {
1626	>	threadUnexpectedException(fail);
1627	>	}
1628	>	}
1629	>
1630	>	public void await(CyclicBarrier barrier) {
1631	>	try {
1632	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1633		} catch (Throwable fail) {
1634		threadUnexpectedException(fail);
1635		}
#	Line 1286 | Line 1658 | public class JSR166TestCase extends Test
1658		public String call() { throw new NullPointerException(); }
1659		}
1660
1289	–	public static class CallableOne implements Callable<Integer> {
1290	–	public Integer call() { return one; }
1291	–	}
1292	–
1293	–	public class ShortRunnable extends CheckedRunnable {
1294	–	protected void realRun() throws Throwable {
1295	–	delay(SHORT_DELAY_MS);
1296	–	}
1297	–	}
1298	–
1299	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1300	–	protected void realRun() throws InterruptedException {
1301	–	delay(SHORT_DELAY_MS);
1302	–	}
1303	–	}
1304	–
1305	–	public class SmallRunnable extends CheckedRunnable {
1306	–	protected void realRun() throws Throwable {
1307	–	delay(SMALL_DELAY_MS);
1308	–	}
1309	–	}
1310	–
1661		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1662		protected void realRun() {
1663		try {
#	Line 1316 | Line 1666 | public class JSR166TestCase extends Test
1666		}
1667		}
1668
1319	–	public class SmallCallable extends CheckedCallable {
1320	–	protected Object realCall() throws InterruptedException {
1321	–	delay(SMALL_DELAY_MS);
1322	–	return Boolean.TRUE;
1323	–	}
1324	–	}
1325	–
1326	–	public class MediumRunnable extends CheckedRunnable {
1327	–	protected void realRun() throws Throwable {
1328	–	delay(MEDIUM_DELAY_MS);
1329	–	}
1330	–	}
1331	–
1332	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1333	–	protected void realRun() throws InterruptedException {
1334	–	delay(MEDIUM_DELAY_MS);
1335	–	}
1336	–	}
1337	–
1669		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1670		return new CheckedRunnable() {
1671		protected void realRun() {
#	Line 1344 | Line 1675 | public class JSR166TestCase extends Test
1675		}};
1676		}
1677
1347	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1348	–	protected void realRun() {
1349	–	try {
1350	–	delay(MEDIUM_DELAY_MS);
1351	–	} catch (InterruptedException ok) {}
1352	–	}
1353	–	}
1354	–
1355	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1356	–	protected void realRun() {
1357	–	try {
1358	–	delay(LONG_DELAY_MS);
1359	–	} catch (InterruptedException ok) {}
1360	–	}
1361	–	}
1362	–
1678		/**
1679		* For use as ThreadFactory in constructors
1680		*/
#	Line 1373 | Line 1688 | public class JSR166TestCase extends Test
1688		boolean isDone();
1689		}
1690
1376	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1377	–	return new TrackedRunnable() {
1378	–	private volatile boolean done = false;
1379	–	public boolean isDone() { return done; }
1380	–	public void run() {
1381	–	try {
1382	–	delay(timeoutMillis);
1383	–	done = true;
1384	–	} catch (InterruptedException ok) {}
1385	–	}
1386	–	};
1387	–	}
1388	–
1389	–	public static class TrackedShortRunnable implements Runnable {
1390	–	public volatile boolean done = false;
1391	–	public void run() {
1392	–	try {
1393	–	delay(SHORT_DELAY_MS);
1394	–	done = true;
1395	–	} catch (InterruptedException ok) {}
1396	–	}
1397	–	}
1398	–
1399	–	public static class TrackedSmallRunnable implements Runnable {
1400	–	public volatile boolean done = false;
1401	–	public void run() {
1402	–	try {
1403	–	delay(SMALL_DELAY_MS);
1404	–	done = true;
1405	–	} catch (InterruptedException ok) {}
1406	–	}
1407	–	}
1408	–
1409	–	public static class TrackedMediumRunnable implements Runnable {
1410	–	public volatile boolean done = false;
1411	–	public void run() {
1412	–	try {
1413	–	delay(MEDIUM_DELAY_MS);
1414	–	done = true;
1415	–	} catch (InterruptedException ok) {}
1416	–	}
1417	–	}
1418	–
1419	–	public static class TrackedLongRunnable implements Runnable {
1420	–	public volatile boolean done = false;
1421	–	public void run() {
1422	–	try {
1423	–	delay(LONG_DELAY_MS);
1424	–	done = true;
1425	–	} catch (InterruptedException ok) {}
1426	–	}
1427	–	}
1428	–
1691		public static class TrackedNoOpRunnable implements Runnable {
1692		public volatile boolean done = false;
1693		public void run() {
#	Line 1433 | Line 1695 | public class JSR166TestCase extends Test
1695		}
1696		}
1697
1436	–	public static class TrackedCallable implements Callable {
1437	–	public volatile boolean done = false;
1438	–	public Object call() {
1439	–	try {
1440	–	delay(SMALL_DELAY_MS);
1441	–	done = true;
1442	–	} catch (InterruptedException ok) {}
1443	–	return Boolean.TRUE;
1444	–	}
1445	–	}
1446	–
1698		/**
1699		* Analog of CheckedRunnable for RecursiveAction
1700		*/
#	Line 1487 | Line 1738 | public class JSR166TestCase extends Test
1738		* A CyclicBarrier that uses timed await and fails with
1739		* AssertionFailedErrors instead of throwing checked exceptions.
1740		*/
1741	<	public class CheckedBarrier extends CyclicBarrier {
1741	>	public static class CheckedBarrier extends CyclicBarrier {
1742		public CheckedBarrier(int parties) { super(parties); }
1743
1744		public int await() {
#	Line 1510 | Line 1761 | public class JSR166TestCase extends Test
1761		assertEquals(0, q.size());
1762		assertNull(q.peek());
1763		assertNull(q.poll());
1764	<	assertNull(q.poll(0, MILLISECONDS));
1764	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1765		assertEquals(q.toString(), "[]");
1766		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1767		assertFalse(q.iterator().hasNext());
#	Line 1551 | Line 1802 | public class JSR166TestCase extends Test
1802		}
1803		}
1804
1805	+	void assertImmutable(final Object o) {
1806	+	if (o instanceof Collection) {
1807	+	assertThrows(
1808	+	UnsupportedOperationException.class,
1809	+	new Runnable() { public void run() {
1810	+	((Collection) o).add(null);}});
1811	+	}
1812	+	}
1813	+
1814		@SuppressWarnings("unchecked")
1815		<T> T serialClone(T o) {
1816		try {
1817		ObjectInputStream ois = new ObjectInputStream
1818		(new ByteArrayInputStream(serialBytes(o)));
1819		T clone = (T) ois.readObject();
1820	+	if (o == clone) assertImmutable(o);
1821		assertSame(o.getClass(), clone.getClass());
1822		return clone;
1823		} catch (Throwable fail) {
#	Line 1565 | Line 1826 | public class JSR166TestCase extends Test
1826		}
1827		}
1828
1829	+	/**
1830	+	* A version of serialClone that leaves error handling (for
1831	+	* e.g. NotSerializableException) up to the caller.
1832	+	*/
1833	+	@SuppressWarnings("unchecked")
1834	+	<T> T serialClonePossiblyFailing(T o)
1835	+	throws ReflectiveOperationException, java.io.IOException {
1836	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1837	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1838	+	oos.writeObject(o);
1839	+	oos.flush();
1840	+	oos.close();
1841	+	ObjectInputStream ois = new ObjectInputStream
1842	+	(new ByteArrayInputStream(bos.toByteArray()));
1843	+	T clone = (T) ois.readObject();
1844	+	if (o == clone) assertImmutable(o);
1845	+	assertSame(o.getClass(), clone.getClass());
1846	+	return clone;
1847	+	}
1848	+
1849	+	/**
1850	+	* If o implements Cloneable and has a public clone method,
1851	+	* returns a clone of o, else null.
1852	+	*/
1853	+	@SuppressWarnings("unchecked")
1854	+	<T> T cloneableClone(T o) {
1855	+	if (!(o instanceof Cloneable)) return null;
1856	+	final T clone;
1857	+	try {
1858	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1859	+	} catch (NoSuchMethodException ok) {
1860	+	return null;
1861	+	} catch (ReflectiveOperationException unexpected) {
1862	+	throw new Error(unexpected);
1863	+	}
1864	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1865	+	assertSame(o.getClass(), clone.getClass());
1866	+	return clone;
1867	+	}
1868	+
1869		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1870		Runnable... throwingActions) {
1871		for (Runnable throwingAction : throwingActions) {
#	Line 1593 | Line 1894 | public class JSR166TestCase extends Test
1894		} catch (NoSuchElementException success) {}
1895		assertFalse(it.hasNext());
1896		}
1897	+
1898	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1899	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1900	+	}
1901	+
1902	+	public Runnable runnableThrowing(final RuntimeException ex) {
1903	+	return new Runnable() { public void run() { throw ex; }};
1904	+	}
1905	+
1906	+	/** A reusable thread pool to be shared by tests. */
1907	+	static final ExecutorService cachedThreadPool =
1908	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1909	+	1000L, MILLISECONDS,
1910	+	new SynchronousQueue<Runnable>());
1911	+
1912	+	static <T> void shuffle(T[] array) {
1913	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1914	+	}
1915	+
1916	+	/**
1917	+	* Returns the same String as would be returned by {@link
1918	+	* Object#toString}, whether or not the given object's class
1919	+	* overrides toString().
1920	+	*
1921	+	* @see System#identityHashCode
1922	+	*/
1923	+	static String identityString(Object x) {
1924	+	return x.getClass().getName()
1925	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1926	+	}
1927	+
1928	+	// --- Shared assertions for Executor tests ---
1929	+
1930	+	/**
1931	+	* Returns maximum number of tasks that can be submitted to given
1932	+	* pool (with bounded queue) before saturation (when submission
1933	+	* throws RejectedExecutionException).
1934	+	*/
1935	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1936	+	BlockingQueue<Runnable> q = pool.getQueue();
1937	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1938	+	}
1939	+
1940	+	@SuppressWarnings("FutureReturnValueIgnored")
1941	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1942	+	try {
1943	+	e.execute((Runnable) null);
1944	+	shouldThrow();
1945	+	} catch (NullPointerException success) {}
1946	+
1947	+	if (! (e instanceof ExecutorService)) return;
1948	+	ExecutorService es = (ExecutorService) e;
1949	+	try {
1950	+	es.submit((Runnable) null);
1951	+	shouldThrow();
1952	+	} catch (NullPointerException success) {}
1953	+	try {
1954	+	es.submit((Runnable) null, Boolean.TRUE);
1955	+	shouldThrow();
1956	+	} catch (NullPointerException success) {}
1957	+	try {
1958	+	es.submit((Callable) null);
1959	+	shouldThrow();
1960	+	} catch (NullPointerException success) {}
1961	+
1962	+	if (! (e instanceof ScheduledExecutorService)) return;
1963	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1964	+	try {
1965	+	ses.schedule((Runnable) null,
1966	+	randomTimeout(), randomTimeUnit());
1967	+	shouldThrow();
1968	+	} catch (NullPointerException success) {}
1969	+	try {
1970	+	ses.schedule((Callable) null,
1971	+	randomTimeout(), randomTimeUnit());
1972	+	shouldThrow();
1973	+	} catch (NullPointerException success) {}
1974	+	try {
1975	+	ses.scheduleAtFixedRate((Runnable) null,
1976	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1977	+	shouldThrow();
1978	+	} catch (NullPointerException success) {}
1979	+	try {
1980	+	ses.scheduleWithFixedDelay((Runnable) null,
1981	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1982	+	shouldThrow();
1983	+	} catch (NullPointerException success) {}
1984	+	}
1985	+
1986	+	void setRejectedExecutionHandler(
1987	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1988	+	p.setRejectedExecutionHandler(handler);
1989	+	assertSame(handler, p.getRejectedExecutionHandler());
1990	+	}
1991	+
1992	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1993	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1994	+	final long savedTaskCount = p.getTaskCount();
1995	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1996	+	final int savedQueueSize = p.getQueue().size();
1997	+	final boolean stock = (p.getClass().getClassLoader() == null);
1998	+
1999	+	Runnable r = () -> {};
2000	+	Callable<Boolean> c = () -> Boolean.TRUE;
2001	+
2002	+	class Recorder implements RejectedExecutionHandler {
2003	+	public volatile Runnable r = null;
2004	+	public volatile ThreadPoolExecutor p = null;
2005	+	public void reset() { r = null; p = null; }
2006	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2007	+	assertNull(this.r);
2008	+	assertNull(this.p);
2009	+	this.r = r;
2010	+	this.p = p;
2011	+	}
2012	+	}
2013	+
2014	+	// check custom handler is invoked exactly once per task
2015	+	Recorder recorder = new Recorder();
2016	+	setRejectedExecutionHandler(p, recorder);
2017	+	for (int i = 2; i--> 0; ) {
2018	+	recorder.reset();
2019	+	p.execute(r);
2020	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2021	+	assertSame(r, recorder.r);
2022	+	assertSame(p, recorder.p);
2023	+
2024	+	recorder.reset();
2025	+	assertFalse(p.submit(r).isDone());
2026	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2027	+	assertSame(p, recorder.p);
2028	+
2029	+	recorder.reset();
2030	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2031	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2032	+	assertSame(p, recorder.p);
2033	+
2034	+	recorder.reset();
2035	+	assertFalse(p.submit(c).isDone());
2036	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2037	+	assertSame(p, recorder.p);
2038	+
2039	+	if (p instanceof ScheduledExecutorService) {
2040	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2041	+	ScheduledFuture<?> future;
2042	+
2043	+	recorder.reset();
2044	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2045	+	assertFalse(future.isDone());
2046	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2047	+	assertSame(p, recorder.p);
2048	+
2049	+	recorder.reset();
2050	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2051	+	assertFalse(future.isDone());
2052	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2053	+	assertSame(p, recorder.p);
2054	+
2055	+	recorder.reset();
2056	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2057	+	assertFalse(future.isDone());
2058	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2059	+	assertSame(p, recorder.p);
2060	+
2061	+	recorder.reset();
2062	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2063	+	assertFalse(future.isDone());
2064	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2065	+	assertSame(p, recorder.p);
2066	+	}
2067	+	}
2068	+
2069	+	// Checking our custom handler above should be sufficient, but
2070	+	// we add some integration tests of standard handlers.
2071	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2072	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2073	+
2074	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2075	+	try {
2076	+	p.execute(setThread);
2077	+	shouldThrow();
2078	+	} catch (RejectedExecutionException success) {}
2079	+	assertNull(thread.get());
2080	+
2081	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2082	+	p.execute(setThread);
2083	+	assertNull(thread.get());
2084	+
2085	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2086	+	p.execute(setThread);
2087	+	if (p.isShutdown())
2088	+	assertNull(thread.get());
2089	+	else
2090	+	assertSame(Thread.currentThread(), thread.get());
2091	+
2092	+	setRejectedExecutionHandler(p, savedHandler);
2093	+
2094	+	// check that pool was not perturbed by handlers
2095	+	assertEquals(savedTaskCount, p.getTaskCount());
2096	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2097	+	assertEquals(savedQueueSize, p.getQueue().size());
2098	+	}
2099		}

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