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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.148 by jsr166, Mon Sep 28 08:23:49 2015 UTC vs.
Revision 1.242 by jsr166, Mon Feb 19 16:12:11 2018 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
55	–	import junit.framework.AssertionFailedError;
102		import junit.framework.Test;
103		import junit.framework.TestCase;
104		import junit.framework.TestResult;
#	Line 107 | Line 153 | import junit.framework.TestSuite;
153		* methods as there are exceptions the method can throw. Sometimes
154		* there are multiple tests per JSR166 method when the different
155		* "normal" behaviors differ significantly. And sometimes testcases
156	<	* cover multiple methods when they cannot be tested in
111	<	* isolation.
156	>	* cover multiple methods when they cannot be tested in isolation.
157		*
158		* <li>The documentation style for testcases is to provide as javadoc
159		* a simple sentence or two describing the property that the testcase
#	Line 171 | Line 216 | public class JSR166TestCase extends Test
216		private static final int suiteRuns =
217		Integer.getInteger("jsr166.suiteRuns", 1);
218
219	+	/**
220	+	* Returns the value of the system property, or NaN if not defined.
221	+	*/
222	+	private static float systemPropertyValue(String name) {
223	+	String floatString = System.getProperty(name);
224	+	if (floatString == null)
225	+	return Float.NaN;
226	+	try {
227	+	return Float.parseFloat(floatString);
228	+	} catch (NumberFormatException ex) {
229	+	throw new IllegalArgumentException(
230	+	String.format("Bad float value in system property %s=%s",
231	+	name, floatString));
232	+	}
233	+	}
234	+
235	+	/**
236	+	* The scaling factor to apply to standard delays used in tests.
237	+	* May be initialized from any of:
238	+	* - the "jsr166.delay.factor" system property
239	+	* - the "test.timeout.factor" system property (as used by jtreg)
240	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
241	+	* - hard-coded fuzz factor when using a known slowpoke VM
242	+	*/
243	+	private static final float delayFactor = delayFactor();
244	+
245	+	private static float delayFactor() {
246	+	float x;
247	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
248	+	return x;
249	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
250	+	return x;
251	+	String prop = System.getProperty("java.vm.version");
252	+	if (prop != null && prop.matches(".*debug.*"))
253	+	return 4.0f; // How much slower is fastdebug than product?!
254	+	return 1.0f;
255	+	}
256	+
257		public JSR166TestCase() { super(); }
258		public JSR166TestCase(String name) { super(name); }
259
#	Line 186 | Line 269 | public class JSR166TestCase extends Test
269		return (regex == null) ? null : Pattern.compile(regex);
270		}
271
272	+	// Instrumentation to debug very rare, but very annoying hung test runs.
273	+	static volatile TestCase currentTestCase;
274	+	// static volatile int currentRun = 0;
275	+	static {
276	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
277	+	// Avoid spurious reports with enormous runsPerTest.
278	+	// A single test case run should never take more than 1 second.
279	+	// But let's cap it at the high end too ...
280	+	final int timeoutMinutes =
281	+	Math.min(15, Math.max(runsPerTest / 60, 1));
282	+	for (TestCase lastTestCase = currentTestCase;;) {
283	+	try { MINUTES.sleep(timeoutMinutes); }
284	+	catch (InterruptedException unexpected) { break; }
285	+	if (lastTestCase == currentTestCase) {
286	+	System.err.printf(
287	+	"Looks like we're stuck running test: %s%n",
288	+	lastTestCase);
289	+	//                     System.err.printf(
290	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
291	+	//                         lastTestCase, currentRun, runsPerTest);
292	+	//                     System.err.println("availableProcessors=" +
293	+	//                         Runtime.getRuntime().availableProcessors());
294	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
295	+	dumpTestThreads();
296	+	// one stack dump is probably enough; more would be spam
297	+	break;
298	+	}
299	+	lastTestCase = currentTestCase;
300	+	}}};
301	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
302	+	thread.setDaemon(true);
303	+	thread.start();
304	+	}
305	+
306	+	//     public static String cpuModel() {
307	+	//         try {
308	+	//             java.util.regex.Matcher matcher
309	+	//               = Pattern.compile("model name\\s*: (.*)")
310	+	//                 .matcher(new String(
311	+	//                     java.nio.file.Files.readAllBytes(
312	+	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
313	+	//             matcher.find();
314	+	//             return matcher.group(1);
315	+	//         } catch (Exception ex) { return null; }
316	+	//     }
317	+
318		public void runBare() throws Throwable {
319	+	currentTestCase = this;
320		if (methodFilter == null
321		|| methodFilter.matcher(toString()).find())
322		super.runBare();
#	Line 194 | Line 324 | public class JSR166TestCase extends Test
324
325		protected void runTest() throws Throwable {
326		for (int i = 0; i < runsPerTest; i++) {
327	+	// currentRun = i;
328		if (profileTests)
329		runTestProfiled();
330		else
#	Line 222 | Line 353 | public class JSR166TestCase extends Test
353		main(suite(), args);
354		}
355
356	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
357	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
358	+	long runTime;
359	+	public void startTest(Test test) {}
360	+	protected void printHeader(long runTime) {
361	+	this.runTime = runTime; // defer printing for later
362	+	}
363	+	protected void printFooter(TestResult result) {
364	+	if (result.wasSuccessful()) {
365	+	getWriter().println("OK (" + result.runCount() + " tests)"
366	+	+ "  Time: " + elapsedTimeAsString(runTime));
367	+	} else {
368	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
369	+	super.printFooter(result);
370	+	}
371	+	}
372	+	}
373	+
374	+	/**
375	+	* Returns a TestRunner that doesn't bother with unnecessary
376	+	* fluff, like printing a "." for each test case.
377	+	*/
378	+	static junit.textui.TestRunner newPithyTestRunner() {
379	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
380	+	runner.setPrinter(new PithyResultPrinter(System.out));
381	+	return runner;
382	+	}
383	+
384		/**
385		* Runs all unit tests in the given test suite.
386		* Actual behavior influenced by jsr166.* system properties.
#	Line 233 | Line 392 | public class JSR166TestCase extends Test
392		System.setSecurityManager(new SecurityManager());
393		}
394		for (int i = 0; i < suiteRuns; i++) {
395	<	TestResult result = junit.textui.TestRunner.run(suite);
395	>	TestResult result = newPithyTestRunner().doRun(suite);
396		if (!result.wasSuccessful())
397		System.exit(1);
398		System.gc();
#	Line 259 | Line 418 | public class JSR166TestCase extends Test
418		for (String testClassName : testClassNames) {
419		try {
420		Class<?> testClass = Class.forName(testClassName);
421	<	Method m = testClass.getDeclaredMethod("suite",
263	<	new Class<?>[0]);
421	>	Method m = testClass.getDeclaredMethod("suite");
422		suite.addTest(newTestSuite((Test)m.invoke(null)));
423	<	} catch (Exception e) {
424	<	throw new Error("Missing test class", e);
423	>	} catch (ReflectiveOperationException e) {
424	>	throw new AssertionError("Missing test class", e);
425		}
426		}
427		}
#	Line 285 | Line 443 | public class JSR166TestCase extends Test
443		}
444		}
445
446	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
447	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
448	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
449	<	public static boolean atLeastJava9() {
450	<	return JAVA_CLASS_VERSION >= 53.0
293	<	// As of 2015-09, java9 still uses 52.0 class file version
294	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
295	<	}
296	<	public static boolean atLeastJava10() {
297	<	return JAVA_CLASS_VERSION >= 54.0
298	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
299	<	}
446	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
447	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
448	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
449	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
450	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
451
452		/**
453		* Collects all JSR166 unit tests as one suite.
#	Line 317 | Line 468 | public class JSR166TestCase extends Test
468		AbstractQueuedLongSynchronizerTest.suite(),
469		ArrayBlockingQueueTest.suite(),
470		ArrayDequeTest.suite(),
471	+	ArrayListTest.suite(),
472		AtomicBooleanTest.suite(),
473		AtomicIntegerArrayTest.suite(),
474		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 339 | Line 491 | public class JSR166TestCase extends Test
491		CopyOnWriteArrayListTest.suite(),
492		CopyOnWriteArraySetTest.suite(),
493		CountDownLatchTest.suite(),
494	+	CountedCompleterTest.suite(),
495		CyclicBarrierTest.suite(),
496		DelayQueueTest.suite(),
497		EntryTest.suite(),
#	Line 367 | Line 520 | public class JSR166TestCase extends Test
520		TreeMapTest.suite(),
521		TreeSetTest.suite(),
522		TreeSubMapTest.suite(),
523	<	TreeSubSetTest.suite());
523	>	TreeSubSetTest.suite(),
524	>	VectorTest.suite());
525
526		// Java8+ test classes
527		if (atLeastJava8()) {
528		String[] java8TestClassNames = {
529	+	"ArrayDeque8Test",
530		"Atomic8Test",
531		"CompletableFutureTest",
532		"ConcurrentHashMap8Test",
533	<	"CountedCompleterTest",
533	>	"CountedCompleter8Test",
534		"DoubleAccumulatorTest",
535		"DoubleAdderTest",
536		"ForkJoinPool8Test",
537		"ForkJoinTask8Test",
538	+	"HashMapTest",
539	+	"LinkedBlockingDeque8Test",
540	+	"LinkedBlockingQueue8Test",
541		"LongAccumulatorTest",
542		"LongAdderTest",
543		"SplittableRandomTest",
544		"StampedLockTest",
545		"SubmissionPublisherTest",
546		"ThreadLocalRandom8Test",
547	+	"TimeUnit8Test",
548		};
549		addNamedTestClasses(suite, java8TestClassNames);
550		}
#	Line 393 | Line 552 | public class JSR166TestCase extends Test
552		// Java9+ test classes
553		if (atLeastJava9()) {
554		String[] java9TestClassNames = {
555	<	// Currently empty, but expecting varhandle tests
555	>	"AtomicBoolean9Test",
556	>	"AtomicInteger9Test",
557	>	"AtomicIntegerArray9Test",
558	>	"AtomicLong9Test",
559	>	"AtomicLongArray9Test",
560	>	"AtomicReference9Test",
561	>	"AtomicReferenceArray9Test",
562	>	"ExecutorCompletionService9Test",
563	>	"ForkJoinPool9Test",
564		};
565		addNamedTestClasses(suite, java9TestClassNames);
566		}
#	Line 404 | Line 571 | public class JSR166TestCase extends Test
571		/** Returns list of junit-style test method names in given class. */
572		public static ArrayList<String> testMethodNames(Class<?> testClass) {
573		Method[] methods = testClass.getDeclaredMethods();
574	<	ArrayList<String> names = new ArrayList<String>(methods.length);
574	>	ArrayList<String> names = new ArrayList<>(methods.length);
575		for (Method method : methods) {
576		if (method.getName().startsWith("test")
577		&& Modifier.isPublic(method.getModifiers())
#	Line 431 | Line 598 | public class JSR166TestCase extends Test
598		for (String methodName : testMethodNames(testClass))
599		suite.addTest((Test) c.newInstance(data, methodName));
600		return suite;
601	<	} catch (Exception e) {
602	<	throw new Error(e);
601	>	} catch (ReflectiveOperationException e) {
602	>	throw new AssertionError(e);
603		}
604		}
605
#	Line 448 | Line 615 | public class JSR166TestCase extends Test
615		if (atLeastJava8()) {
616		String name = testClass.getName();
617		String name8 = name.replaceAll("Test$", "8Test");
618	<	if (name.equals(name8)) throw new Error(name);
618	>	if (name.equals(name8)) throw new AssertionError(name);
619		try {
620		return (Test)
621		Class.forName(name8)
622	<	.getMethod("testSuite", new Class[] { dataClass })
622	>	.getMethod("testSuite", dataClass)
623		.invoke(null, data);
624	<	} catch (Exception e) {
625	<	throw new Error(e);
624	>	} catch (ReflectiveOperationException e) {
625	>	throw new AssertionError(e);
626		}
627		} else {
628		return new TestSuite();
629		}
463	–
630		}
631
632		// Delays for timing-dependent tests, in milliseconds.
#	Line 470 | Line 636 | public class JSR166TestCase extends Test
636		public static long MEDIUM_DELAY_MS;
637		public static long LONG_DELAY_MS;
638
639	+	private static final long RANDOM_TIMEOUT;
640	+	private static final long RANDOM_EXPIRED_TIMEOUT;
641	+	private static final TimeUnit RANDOM_TIMEUNIT;
642	+	static {
643	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
644	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
645	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
646	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
647	+	TimeUnit[] timeUnits = TimeUnit.values();
648	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
649	+	}
650	+
651	+	/**
652	+	* Returns a timeout for use when any value at all will do.
653	+	*/
654	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
655	+
656	+	/**
657	+	* Returns a timeout that means "no waiting", i.e. not positive.
658	+	*/
659	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
660	+
661	+	/**
662	+	* Returns a random non-null TimeUnit.
663	+	*/
664	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
665	+
666		/**
667	<	* Returns the shortest timed delay. This could
668	<	* be reimplemented to use for example a Property.
667	>	* Returns the shortest timed delay. This can be scaled up for
668	>	* slow machines using the jsr166.delay.factor system property,
669	>	* or via jtreg's -timeoutFactor: flag.
670	>	* http://openjdk.java.net/jtreg/command-help.html
671		*/
672		protected long getShortDelay() {
673	<	return 50;
673	>	return (long) (50 * delayFactor);
674		}
675
676		/**
#	Line 488 | Line 683 | public class JSR166TestCase extends Test
683		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
684		}
685
686	+	private static final long TIMEOUT_DELAY_MS
687	+	= (long) (12.0 * Math.cbrt(delayFactor));
688	+
689		/**
690	<	* Returns a timeout in milliseconds to be used in tests that
691	<	* verify that operations block or time out.
690	>	* Returns a timeout in milliseconds to be used in tests that verify
691	>	* that operations block or time out.  We want this to be longer
692	>	* than the OS scheduling quantum, but not too long, so don't scale
693	>	* linearly with delayFactor; we use "crazy" cube root instead.
694		*/
695	<	long timeoutMillis() {
696	<	return SHORT_DELAY_MS / 4;
695	>	static long timeoutMillis() {
696	>	return TIMEOUT_DELAY_MS;
697		}
698
699		/**
#	Line 509 | Line 709 | public class JSR166TestCase extends Test
709		* The first exception encountered if any threadAssertXXX method fails.
710		*/
711		private final AtomicReference<Throwable> threadFailure
712	<	= new AtomicReference<Throwable>(null);
712	>	= new AtomicReference<>(null);
713
714		/**
715		* Records an exception so that it can be rethrown later in the test
#	Line 518 | Line 718 | public class JSR166TestCase extends Test
718		* the same test have no effect.
719		*/
720		public void threadRecordFailure(Throwable t) {
721	+	System.err.println(t);
722	+	dumpTestThreads();
723		threadFailure.compareAndSet(null, t);
724		}
725
#	Line 528 | Line 730 | public class JSR166TestCase extends Test
730		void tearDownFail(String format, Object... args) {
731		String msg = toString() + ": " + String.format(format, args);
732		System.err.println(msg);
733	<	printAllStackTraces();
734	<	throw new AssertionFailedError(msg);
733	>	dumpTestThreads();
734	>	throw new AssertionError(msg);
735		}
736
737		/**
#	Line 550 | Line 752 | public class JSR166TestCase extends Test
752		throw (RuntimeException) t;
753		else if (t instanceof Exception)
754		throw (Exception) t;
755	<	else {
756	<	AssertionFailedError afe =
555	<	new AssertionFailedError(t.toString());
556	<	afe.initCause(t);
557	<	throw afe;
558	<	}
755	>	else
756	>	throw new AssertionError(t.toString(), t);
757		}
758
759		if (Thread.interrupted())
#	Line 565 | Line 763 | public class JSR166TestCase extends Test
763		}
764
765		/**
766	<	* Finds missing try { ... } finally { joinPool(e); }
766	>	* Finds missing PoolCleaners
767		*/
768		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
769		Thread[] survivors = new Thread[7];
#	Line 589 | Line 787 | public class JSR166TestCase extends Test
787
788		/**
789		* Just like fail(reason), but additionally recording (using
790	<	* threadRecordFailure) any AssertionFailedError thrown, so that
791	<	* the current testcase will fail.
790	>	* threadRecordFailure) any AssertionError thrown, so that the
791	>	* current testcase will fail.
792		*/
793		public void threadFail(String reason) {
794		try {
795		fail(reason);
796	<	} catch (AssertionFailedError t) {
797	<	threadRecordFailure(t);
798	<	fail(reason);
796	>	} catch (AssertionError fail) {
797	>	threadRecordFailure(fail);
798	>	throw fail;
799		}
800		}
801
802		/**
803		* Just like assertTrue(b), but additionally recording (using
804	<	* threadRecordFailure) any AssertionFailedError thrown, so that
805	<	* the current testcase will fail.
804	>	* threadRecordFailure) any AssertionError thrown, so that the
805	>	* current testcase will fail.
806		*/
807		public void threadAssertTrue(boolean b) {
808		try {
809		assertTrue(b);
810	<	} catch (AssertionFailedError t) {
811	<	threadRecordFailure(t);
812	<	throw t;
810	>	} catch (AssertionError fail) {
811	>	threadRecordFailure(fail);
812	>	throw fail;
813		}
814		}
815
816		/**
817		* Just like assertFalse(b), but additionally recording (using
818	<	* threadRecordFailure) any AssertionFailedError thrown, so that
819	<	* the current testcase will fail.
818	>	* threadRecordFailure) any AssertionError thrown, so that the
819	>	* current testcase will fail.
820		*/
821		public void threadAssertFalse(boolean b) {
822		try {
823		assertFalse(b);
824	<	} catch (AssertionFailedError t) {
825	<	threadRecordFailure(t);
826	<	throw t;
824	>	} catch (AssertionError fail) {
825	>	threadRecordFailure(fail);
826	>	throw fail;
827		}
828		}
829
830		/**
831		* Just like assertNull(x), but additionally recording (using
832	<	* threadRecordFailure) any AssertionFailedError thrown, so that
833	<	* the current testcase will fail.
832	>	* threadRecordFailure) any AssertionError thrown, so that the
833	>	* current testcase will fail.
834		*/
835		public void threadAssertNull(Object x) {
836		try {
837		assertNull(x);
838	<	} catch (AssertionFailedError t) {
839	<	threadRecordFailure(t);
840	<	throw t;
838	>	} catch (AssertionError fail) {
839	>	threadRecordFailure(fail);
840	>	throw fail;
841		}
842		}
843
844		/**
845		* Just like assertEquals(x, y), but additionally recording (using
846	<	* threadRecordFailure) any AssertionFailedError thrown, so that
847	<	* the current testcase will fail.
846	>	* threadRecordFailure) any AssertionError thrown, so that the
847	>	* current testcase will fail.
848		*/
849		public void threadAssertEquals(long x, long y) {
850		try {
851		assertEquals(x, y);
852	<	} catch (AssertionFailedError t) {
853	<	threadRecordFailure(t);
854	<	throw t;
852	>	} catch (AssertionError fail) {
853	>	threadRecordFailure(fail);
854	>	throw fail;
855		}
856		}
857
858		/**
859		* Just like assertEquals(x, y), but additionally recording (using
860	<	* threadRecordFailure) any AssertionFailedError thrown, so that
861	<	* the current testcase will fail.
860	>	* threadRecordFailure) any AssertionError thrown, so that the
861	>	* current testcase will fail.
862		*/
863		public void threadAssertEquals(Object x, Object y) {
864		try {
865		assertEquals(x, y);
866	<	} catch (AssertionFailedError fail) {
866	>	} catch (AssertionError fail) {
867		threadRecordFailure(fail);
868		throw fail;
869		} catch (Throwable fail) {
#	Line 675 | Line 873 | public class JSR166TestCase extends Test
873
874		/**
875		* Just like assertSame(x, y), but additionally recording (using
876	<	* threadRecordFailure) any AssertionFailedError thrown, so that
877	<	* the current testcase will fail.
876	>	* threadRecordFailure) any AssertionError thrown, so that the
877	>	* current testcase will fail.
878		*/
879		public void threadAssertSame(Object x, Object y) {
880		try {
881		assertSame(x, y);
882	<	} catch (AssertionFailedError fail) {
882	>	} catch (AssertionError fail) {
883		threadRecordFailure(fail);
884		throw fail;
885		}
#	Line 703 | Line 901 | public class JSR166TestCase extends Test
901
902		/**
903		* Records the given exception using {@link #threadRecordFailure},
904	<	* then rethrows the exception, wrapping it in an
905	<	* AssertionFailedError if necessary.
904	>	* then rethrows the exception, wrapping it in an AssertionError
905	>	* if necessary.
906		*/
907		public void threadUnexpectedException(Throwable t) {
908		threadRecordFailure(t);
#	Line 713 | Line 911 | public class JSR166TestCase extends Test
911		throw (RuntimeException) t;
912		else if (t instanceof Error)
913		throw (Error) t;
914	<	else {
915	<	AssertionFailedError afe =
718	<	new AssertionFailedError("unexpected exception: " + t);
719	<	afe.initCause(t);
720	<	throw afe;
721	<	}
914	>	else
915	>	throw new AssertionError("unexpected exception: " + t, t);
916		}
917
918		/**
919		* Delays, via Thread.sleep, for the given millisecond delay, but
920		* if the sleep is shorter than specified, may re-sleep or yield
921	<	* until time elapses.
921	>	* until time elapses.  Ensures that the given time, as measured
922	>	* by System.nanoTime(), has elapsed.
923		*/
924		static void delay(long millis) throws InterruptedException {
925	<	long startTime = System.nanoTime();
926	<	long ns = millis * 1000 * 1000;
927	<	for (;;) {
925	>	long nanos = millis * (1000 * 1000);
926	>	final long wakeupTime = System.nanoTime() + nanos;
927	>	do {
928		if (millis > 0L)
929		Thread.sleep(millis);
930		else // too short to sleep
931		Thread.yield();
932	<	long d = ns - (System.nanoTime() - startTime);
933	<	if (d > 0L)
934	<	millis = d / (1000 * 1000);
935	<	else
936	<	break;
932	>	nanos = wakeupTime - System.nanoTime();
933	>	millis = nanos / (1000 * 1000);
934	>	} while (nanos >= 0L);
935	>	}
936	>
937	>	/**
938	>	* Allows use of try-with-resources with per-test thread pools.
939	>	*/
940	>	class PoolCleaner implements AutoCloseable {
941	>	private final ExecutorService pool;
942	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
943	>	public void close() { joinPool(pool); }
944	>	}
945	>
946	>	/**
947	>	* An extension of PoolCleaner that has an action to release the pool.
948	>	*/
949	>	class PoolCleanerWithReleaser extends PoolCleaner {
950	>	private final Runnable releaser;
951	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
952	>	super(pool);
953	>	this.releaser = releaser;
954	>	}
955	>	public void close() {
956	>	try {
957	>	releaser.run();
958	>	} finally {
959	>	super.close();
960	>	}
961		}
962		}
963
964	+	PoolCleaner cleaner(ExecutorService pool) {
965	+	return new PoolCleaner(pool);
966	+	}
967	+
968	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
969	+	return new PoolCleanerWithReleaser(pool, releaser);
970	+	}
971	+
972	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
973	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
974	+	}
975	+
976	+	Runnable releaser(final CountDownLatch latch) {
977	+	return new Runnable() { public void run() {
978	+	do { latch.countDown(); }
979	+	while (latch.getCount() > 0);
980	+	}};
981	+	}
982	+
983	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
984	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
985	+	}
986	+
987	+	Runnable releaser(final AtomicBoolean flag) {
988	+	return new Runnable() { public void run() { flag.set(true); }};
989	+	}
990	+
991		/**
992		* Waits out termination of a thread pool or fails doing so.
993		*/
994		void joinPool(ExecutorService pool) {
995		try {
996		pool.shutdown();
997	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
998	<	fail("ExecutorService " + pool +
999	<	" did not terminate in a timely manner");
997	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
998	>	try {
999	>	threadFail("ExecutorService " + pool +
1000	>	" did not terminate in a timely manner");
1001	>	} finally {
1002	>	// last resort, for the benefit of subsequent tests
1003	>	pool.shutdownNow();
1004	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1005	>	}
1006	>	}
1007		} catch (SecurityException ok) {
1008		// Allowed in case test doesn't have privs
1009		} catch (InterruptedException fail) {
1010	<	fail("Unexpected InterruptedException");
1010	>	threadFail("Unexpected InterruptedException");
1011		}
1012		}
1013
1014	<	/** Like Runnable, but with the freedom to throw anything */
1014	>	/**
1015	>	* Like Runnable, but with the freedom to throw anything.
1016	>	* junit folks had the same idea:
1017	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1018	>	*/
1019		interface Action { public void run() throws Throwable; }
1020
1021		/**
#	Line 768 | Line 1025 | public class JSR166TestCase extends Test
1025		*/
1026		void testInParallel(Action ... actions) {
1027		ExecutorService pool = Executors.newCachedThreadPool();
1028	<	try {
1028	>	try (PoolCleaner cleaner = cleaner(pool)) {
1029		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1030		for (final Action action : actions)
1031		futures.add(pool.submit(new CheckedRunnable() {
#	Line 781 | Line 1038 | public class JSR166TestCase extends Test
1038		} catch (Exception ex) {
1039		threadUnexpectedException(ex);
1040		}
784	–	} finally {
785	–	joinPool(pool);
1041		}
1042		}
1043
1044		/**
1045	<	* A debugging tool to print all stack traces, as jstack does.
1045	>	* A debugging tool to print stack traces of most threads, as jstack does.
1046	>	* Uninteresting threads are filtered out.
1047		*/
1048	<	static void printAllStackTraces() {
1049	<	for (ThreadInfo info :
1050	<	ManagementFactory.getThreadMXBean()
1051	<	.dumpAllThreads(true, true))
1052	<	System.err.print(info);
1053	<	}
1054	<
1055	<	/**
1056	<	* Checks that thread does not terminate within the default
801	<	* millisecond delay of {@code timeoutMillis()}.
802	<	*/
803	<	void assertThreadStaysAlive(Thread thread) {
804	<	assertThreadStaysAlive(thread, timeoutMillis());
805	<	}
1048	>	static void dumpTestThreads() {
1049	>	SecurityManager sm = System.getSecurityManager();
1050	>	if (sm != null) {
1051	>	try {
1052	>	System.setSecurityManager(null);
1053	>	} catch (SecurityException giveUp) {
1054	>	return;
1055	>	}
1056	>	}
1057
1058	<	/**
1059	<	* Checks that thread does not terminate within the given millisecond delay.
1060	<	*/
1061	<	void assertThreadStaysAlive(Thread thread, long millis) {
1062	<	try {
1063	<	// No need to optimize the failing case via Thread.join.
1064	<	delay(millis);
1065	<	assertTrue(thread.isAlive());
1066	<	} catch (InterruptedException fail) {
1067	<	fail("Unexpected InterruptedException");
1058	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1059	>	System.err.println("------ stacktrace dump start ------");
1060	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1061	>	final String name = info.getThreadName();
1062	>	String lockName;
1063	>	if ("Signal Dispatcher".equals(name))
1064	>	continue;
1065	>	if ("Reference Handler".equals(name)
1066	>	&& (lockName = info.getLockName()) != null
1067	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1068	>	continue;
1069	>	if ("Finalizer".equals(name)
1070	>	&& (lockName = info.getLockName()) != null
1071	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1072	>	continue;
1073	>	if ("checkForWedgedTest".equals(name))
1074	>	continue;
1075	>	System.err.print(info);
1076		}
1077	<	}
1077	>	System.err.println("------ stacktrace dump end ------");
1078
1079	<	/**
821	<	* Checks that the threads do not terminate within the default
822	<	* millisecond delay of {@code timeoutMillis()}.
823	<	*/
824	<	void assertThreadsStayAlive(Thread... threads) {
825	<	assertThreadsStayAlive(timeoutMillis(), threads);
1079	>	if (sm != null) System.setSecurityManager(sm);
1080		}
1081
1082		/**
1083	<	* Checks that the threads do not terminate within the given millisecond delay.
1083	>	* Checks that thread eventually enters the expected blocked thread state.
1084		*/
1085	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1086	<	try {
1087	<	// No need to optimize the failing case via Thread.join.
1088	<	delay(millis);
1089	<	for (Thread thread : threads)
1090	<	assertTrue(thread.isAlive());
1091	<	} catch (InterruptedException fail) {
1092	<	fail("Unexpected InterruptedException");
1085	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1086	>	// always sleep at least 1 ms, with high probability avoiding
1087	>	// transitory states
1088	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1089	>	try { delay(1); }
1090	>	catch (InterruptedException fail) {
1091	>	throw new AssertionError("Unexpected InterruptedException", fail);
1092	>	}
1093	>	Thread.State s = thread.getState();
1094	>	if (s == expected)
1095	>	return;
1096	>	else if (s == Thread.State.TERMINATED)
1097	>	fail("Unexpected thread termination");
1098		}
1099	+	fail("timed out waiting for thread to enter thread state " + expected);
1100		}
1101
1102		/**
#	Line 877 | Line 1137 | public class JSR166TestCase extends Test
1137		}
1138
1139		/**
1140	+	* The maximum number of consecutive spurious wakeups we should
1141	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1142	+	*/
1143	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1144	+
1145	+	/**
1146		* The number of elements to place in collections, arrays, etc.
1147		*/
1148		public static final int SIZE = 20;
#	Line 980 | Line 1246 | public class JSR166TestCase extends Test
1246		}
1247		public void refresh() {}
1248		public String toString() {
1249	<	List<Permission> ps = new ArrayList<Permission>();
1249	>	List<Permission> ps = new ArrayList<>();
1250		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1251		ps.add(e.nextElement());
1252		return "AdjustablePolicy with permissions " + ps;
#	Line 1008 | Line 1274 | public class JSR166TestCase extends Test
1274
1275		/**
1276		* Sleeps until the given time has elapsed.
1277	<	* Throws AssertionFailedError if interrupted.
1277	>	* Throws AssertionError if interrupted.
1278		*/
1279	<	void sleep(long millis) {
1279	>	static void sleep(long millis) {
1280		try {
1281		delay(millis);
1282		} catch (InterruptedException fail) {
1283	<	AssertionFailedError afe =
1018	<	new AssertionFailedError("Unexpected InterruptedException");
1019	<	afe.initCause(fail);
1020	<	throw afe;
1283	>	throw new AssertionError("Unexpected InterruptedException", fail);
1284		}
1285		}
1286
#	Line 1026 | Line 1289 | public class JSR166TestCase extends Test
1289		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1290		*/
1291		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1292	<	long startTime = System.nanoTime();
1292	>	long startTime = 0L;
1293		for (;;) {
1294		Thread.State s = thread.getState();
1295		if (s == Thread.State.BLOCKED ||
#	Line 1035 | Line 1298 | public class JSR166TestCase extends Test
1298		return;
1299		else if (s == Thread.State.TERMINATED)
1300		fail("Unexpected thread termination");
1301	+	else if (startTime == 0L)
1302	+	startTime = System.nanoTime();
1303		else if (millisElapsedSince(startTime) > timeoutMillis) {
1304		threadAssertTrue(thread.isAlive());
1305	<	return;
1305	>	fail("timed out waiting for thread to enter wait state");
1306		}
1307		Thread.yield();
1308		}
1309		}
1310
1311		/**
1312	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1313	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1312	>	* Spin-waits up to the specified number of milliseconds for the given
1313	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1314	>	* and additionally satisfy the given condition.
1315	>	*/
1316	>	void waitForThreadToEnterWaitState(
1317	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1318	>	long startTime = 0L;
1319	>	for (;;) {
1320	>	Thread.State s = thread.getState();
1321	>	if (s == Thread.State.BLOCKED ||
1322	>	s == Thread.State.WAITING ||
1323	>	s == Thread.State.TIMED_WAITING) {
1324	>	try {
1325	>	if (waitingForGodot.call())
1326	>	return;
1327	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1328	>	}
1329	>	else if (s == Thread.State.TERMINATED)
1330	>	fail("Unexpected thread termination");
1331	>	else if (startTime == 0L)
1332	>	startTime = System.nanoTime();
1333	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1334	>	threadAssertTrue(thread.isAlive());
1335	>	fail("timed out waiting for thread to enter wait state");
1336	>	}
1337	>	Thread.yield();
1338	>	}
1339	>	}
1340	>
1341	>	/**
1342	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1343	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1344		*/
1345		void waitForThreadToEnterWaitState(Thread thread) {
1346		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1347		}
1348
1349		/**
1350	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1351	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1352	+	* and additionally satisfy the given condition.
1353	+	*/
1354	+	void waitForThreadToEnterWaitState(
1355	+	Thread thread, Callable<Boolean> waitingForGodot) {
1356	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1357	+	}
1358	+
1359	+	/**
1360		* Returns the number of milliseconds since time given by
1361		* startNanoTime, which must have been previously returned from a
1362		* call to {@link System#nanoTime()}.
#	Line 1066 | Line 1371 | public class JSR166TestCase extends Test
1371		//             r.run();
1372		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1373		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1374	<	//             throw new AssertionFailedError("did not return promptly");
1374	>	//             throw new AssertionError("did not return promptly");
1375		//     }
1376
1377		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1083 | Line 1388 | public class JSR166TestCase extends Test
1388		assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1389		} catch (Throwable fail) { threadUnexpectedException(fail); }
1390		if (millisElapsedSince(startTime) > timeoutMillis/2)
1391	<	throw new AssertionFailedError("timed get did not return promptly");
1391	>	throw new AssertionError("timed get did not return promptly");
1392		}
1393
1394		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1113 | Line 1418 | public class JSR166TestCase extends Test
1418		} finally {
1419		if (t.getState() != Thread.State.TERMINATED) {
1420		t.interrupt();
1421	<	fail("Test timed out");
1421	>	threadFail("timed out waiting for thread to terminate");
1422		}
1423		}
1424		}
#	Line 1141 | Line 1446 | public class JSR166TestCase extends Test
1446		}
1447		}
1448
1144	–	public abstract class RunnableShouldThrow implements Runnable {
1145	–	protected abstract void realRun() throws Throwable;
1146	–
1147	–	final Class<?> exceptionClass;
1148	–
1149	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1150	–	this.exceptionClass = exceptionClass;
1151	–	}
1152	–
1153	–	public final void run() {
1154	–	try {
1155	–	realRun();
1156	–	threadShouldThrow(exceptionClass.getSimpleName());
1157	–	} catch (Throwable t) {
1158	–	if (! exceptionClass.isInstance(t))
1159	–	threadUnexpectedException(t);
1160	–	}
1161	–	}
1162	–	}
1163	–
1449		public abstract class ThreadShouldThrow extends Thread {
1450		protected abstract void realRun() throws Throwable;
1451
#	Line 1261 | Line 1546 | public class JSR166TestCase extends Test
1546		}};
1547		}
1548
1549	<	public Runnable awaiter(final CountDownLatch latch) {
1550	<	return new CheckedRunnable() {
1551	<	public void realRun() throws InterruptedException {
1552	<	await(latch);
1553	<	}};
1549	>	class LatchAwaiter extends CheckedRunnable {
1550	>	static final int NEW = 0;
1551	>	static final int RUNNING = 1;
1552	>	static final int DONE = 2;
1553	>	final CountDownLatch latch;
1554	>	int state = NEW;
1555	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1556	>	public void realRun() throws InterruptedException {
1557	>	state = 1;
1558	>	await(latch);
1559	>	state = 2;
1560	>	}
1561		}
1562
1563	<	public void await(CountDownLatch latch) {
1563	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1564	>	return new LatchAwaiter(latch);
1565	>	}
1566	>
1567	>	public void await(CountDownLatch latch, long timeoutMillis) {
1568		try {
1569	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1569	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1570	>	fail("timed out waiting for CountDownLatch for "
1571	>	+ (timeoutMillis/1000) + " sec");
1572		} catch (Throwable fail) {
1573		threadUnexpectedException(fail);
1574		}
1575		}
1576
1577	+	public void await(CountDownLatch latch) {
1578	+	await(latch, LONG_DELAY_MS);
1579	+	}
1580	+
1581		public void await(Semaphore semaphore) {
1582		try {
1583	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1583	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1584	>	fail("timed out waiting for Semaphore for "
1585	>	+ (LONG_DELAY_MS/1000) + " sec");
1586	>	} catch (Throwable fail) {
1587	>	threadUnexpectedException(fail);
1588	>	}
1589	>	}
1590	>
1591	>	public void await(CyclicBarrier barrier) {
1592	>	try {
1593	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1594		} catch (Throwable fail) {
1595		threadUnexpectedException(fail);
1596		}
#	Line 1298 | Line 1610 | public class JSR166TestCase extends Test
1610		//         long startTime = System.nanoTime();
1611		//         while (!flag.get()) {
1612		//             if (millisElapsedSince(startTime) > timeoutMillis)
1613	<	//                 throw new AssertionFailedError("timed out");
1613	>	//                 throw new AssertionError("timed out");
1614		//             Thread.yield();
1615		//         }
1616		//     }
#	Line 1307 | Line 1619 | public class JSR166TestCase extends Test
1619		public String call() { throw new NullPointerException(); }
1620		}
1621
1310	–	public static class CallableOne implements Callable<Integer> {
1311	–	public Integer call() { return one; }
1312	–	}
1313	–
1314	–	public class ShortRunnable extends CheckedRunnable {
1315	–	protected void realRun() throws Throwable {
1316	–	delay(SHORT_DELAY_MS);
1317	–	}
1318	–	}
1319	–
1320	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1321	–	protected void realRun() throws InterruptedException {
1322	–	delay(SHORT_DELAY_MS);
1323	–	}
1324	–	}
1325	–
1326	–	public class SmallRunnable extends CheckedRunnable {
1327	–	protected void realRun() throws Throwable {
1328	–	delay(SMALL_DELAY_MS);
1329	–	}
1330	–	}
1331	–
1622		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1623		protected void realRun() {
1624		try {
#	Line 1337 | Line 1627 | public class JSR166TestCase extends Test
1627		}
1628		}
1629
1340	–	public class SmallCallable extends CheckedCallable {
1341	–	protected Object realCall() throws InterruptedException {
1342	–	delay(SMALL_DELAY_MS);
1343	–	return Boolean.TRUE;
1344	–	}
1345	–	}
1346	–
1347	–	public class MediumRunnable extends CheckedRunnable {
1348	–	protected void realRun() throws Throwable {
1349	–	delay(MEDIUM_DELAY_MS);
1350	–	}
1351	–	}
1352	–
1353	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1354	–	protected void realRun() throws InterruptedException {
1355	–	delay(MEDIUM_DELAY_MS);
1356	–	}
1357	–	}
1358	–
1630		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1631		return new CheckedRunnable() {
1632		protected void realRun() {
#	Line 1365 | Line 1636 | public class JSR166TestCase extends Test
1636		}};
1637		}
1638
1368	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1369	–	protected void realRun() {
1370	–	try {
1371	–	delay(MEDIUM_DELAY_MS);
1372	–	} catch (InterruptedException ok) {}
1373	–	}
1374	–	}
1375	–
1376	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1377	–	protected void realRun() {
1378	–	try {
1379	–	delay(LONG_DELAY_MS);
1380	–	} catch (InterruptedException ok) {}
1381	–	}
1382	–	}
1383	–
1639		/**
1640		* For use as ThreadFactory in constructors
1641		*/
#	Line 1394 | Line 1649 | public class JSR166TestCase extends Test
1649		boolean isDone();
1650		}
1651
1397	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1398	–	return new TrackedRunnable() {
1399	–	private volatile boolean done = false;
1400	–	public boolean isDone() { return done; }
1401	–	public void run() {
1402	–	try {
1403	–	delay(timeoutMillis);
1404	–	done = true;
1405	–	} catch (InterruptedException ok) {}
1406	–	}
1407	–	};
1408	–	}
1409	–
1410	–	public static class TrackedShortRunnable implements Runnable {
1411	–	public volatile boolean done = false;
1412	–	public void run() {
1413	–	try {
1414	–	delay(SHORT_DELAY_MS);
1415	–	done = true;
1416	–	} catch (InterruptedException ok) {}
1417	–	}
1418	–	}
1419	–
1420	–	public static class TrackedSmallRunnable implements Runnable {
1421	–	public volatile boolean done = false;
1422	–	public void run() {
1423	–	try {
1424	–	delay(SMALL_DELAY_MS);
1425	–	done = true;
1426	–	} catch (InterruptedException ok) {}
1427	–	}
1428	–	}
1429	–
1430	–	public static class TrackedMediumRunnable implements Runnable {
1431	–	public volatile boolean done = false;
1432	–	public void run() {
1433	–	try {
1434	–	delay(MEDIUM_DELAY_MS);
1435	–	done = true;
1436	–	} catch (InterruptedException ok) {}
1437	–	}
1438	–	}
1439	–
1440	–	public static class TrackedLongRunnable implements Runnable {
1441	–	public volatile boolean done = false;
1442	–	public void run() {
1443	–	try {
1444	–	delay(LONG_DELAY_MS);
1445	–	done = true;
1446	–	} catch (InterruptedException ok) {}
1447	–	}
1448	–	}
1449	–
1652		public static class TrackedNoOpRunnable implements Runnable {
1653		public volatile boolean done = false;
1654		public void run() {
#	Line 1454 | Line 1656 | public class JSR166TestCase extends Test
1656		}
1657		}
1658
1457	–	public static class TrackedCallable implements Callable {
1458	–	public volatile boolean done = false;
1459	–	public Object call() {
1460	–	try {
1461	–	delay(SMALL_DELAY_MS);
1462	–	done = true;
1463	–	} catch (InterruptedException ok) {}
1464	–	return Boolean.TRUE;
1465	–	}
1466	–	}
1467	–
1659		/**
1660		* Analog of CheckedRunnable for RecursiveAction
1661		*/
#	Line 1506 | Line 1697 | public class JSR166TestCase extends Test
1697
1698		/**
1699		* A CyclicBarrier that uses timed await and fails with
1700	<	* AssertionFailedErrors instead of throwing checked exceptions.
1700	>	* AssertionErrors instead of throwing checked exceptions.
1701		*/
1702	<	public class CheckedBarrier extends CyclicBarrier {
1702	>	public static class CheckedBarrier extends CyclicBarrier {
1703		public CheckedBarrier(int parties) { super(parties); }
1704
1705		public int await() {
1706		try {
1707		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1708		} catch (TimeoutException timedOut) {
1709	<	throw new AssertionFailedError("timed out");
1709	>	throw new AssertionError("timed out");
1710		} catch (Exception fail) {
1711	<	AssertionFailedError afe =
1521	<	new AssertionFailedError("Unexpected exception: " + fail);
1522	<	afe.initCause(fail);
1523	<	throw afe;
1711	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1712		}
1713		}
1714		}
#	Line 1531 | Line 1719 | public class JSR166TestCase extends Test
1719		assertEquals(0, q.size());
1720		assertNull(q.peek());
1721		assertNull(q.poll());
1722	<	assertNull(q.poll(0, MILLISECONDS));
1722	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1723		assertEquals(q.toString(), "[]");
1724		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1725		assertFalse(q.iterator().hasNext());
#	Line 1572 | Line 1760 | public class JSR166TestCase extends Test
1760		}
1761		}
1762
1763	+	void assertImmutable(final Object o) {
1764	+	if (o instanceof Collection) {
1765	+	assertThrows(
1766	+	UnsupportedOperationException.class,
1767	+	new Runnable() { public void run() {
1768	+	((Collection) o).add(null);}});
1769	+	}
1770	+	}
1771	+
1772		@SuppressWarnings("unchecked")
1773		<T> T serialClone(T o) {
1774		try {
1775		ObjectInputStream ois = new ObjectInputStream
1776		(new ByteArrayInputStream(serialBytes(o)));
1777		T clone = (T) ois.readObject();
1778	+	if (o == clone) assertImmutable(o);
1779		assertSame(o.getClass(), clone.getClass());
1780		return clone;
1781		} catch (Throwable fail) {
#	Line 1586 | Line 1784 | public class JSR166TestCase extends Test
1784		}
1785		}
1786
1787	+	/**
1788	+	* A version of serialClone that leaves error handling (for
1789	+	* e.g. NotSerializableException) up to the caller.
1790	+	*/
1791	+	@SuppressWarnings("unchecked")
1792	+	<T> T serialClonePossiblyFailing(T o)
1793	+	throws ReflectiveOperationException, java.io.IOException {
1794	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1795	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1796	+	oos.writeObject(o);
1797	+	oos.flush();
1798	+	oos.close();
1799	+	ObjectInputStream ois = new ObjectInputStream
1800	+	(new ByteArrayInputStream(bos.toByteArray()));
1801	+	T clone = (T) ois.readObject();
1802	+	if (o == clone) assertImmutable(o);
1803	+	assertSame(o.getClass(), clone.getClass());
1804	+	return clone;
1805	+	}
1806	+
1807	+	/**
1808	+	* If o implements Cloneable and has a public clone method,
1809	+	* returns a clone of o, else null.
1810	+	*/
1811	+	@SuppressWarnings("unchecked")
1812	+	<T> T cloneableClone(T o) {
1813	+	if (!(o instanceof Cloneable)) return null;
1814	+	final T clone;
1815	+	try {
1816	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1817	+	} catch (NoSuchMethodException ok) {
1818	+	return null;
1819	+	} catch (ReflectiveOperationException unexpected) {
1820	+	throw new Error(unexpected);
1821	+	}
1822	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1823	+	assertSame(o.getClass(), clone.getClass());
1824	+	return clone;
1825	+	}
1826	+
1827		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1828		Runnable... throwingActions) {
1829		for (Runnable throwingAction : throwingActions) {
#	Line 1593 | Line 1831 | public class JSR166TestCase extends Test
1831		try { throwingAction.run(); }
1832		catch (Throwable t) {
1833		threw = true;
1834	<	if (!expectedExceptionClass.isInstance(t)) {
1835	<	AssertionFailedError afe =
1836	<	new AssertionFailedError
1837	<	("Expected " + expectedExceptionClass.getName() +
1838	<	", got " + t.getClass().getName());
1601	<	afe.initCause(t);
1602	<	threadUnexpectedException(afe);
1603	<	}
1834	>	if (!expectedExceptionClass.isInstance(t))
1835	>	throw new AssertionError(
1836	>	"Expected " + expectedExceptionClass.getName() +
1837	>	", got " + t.getClass().getName(),
1838	>	t);
1839		}
1840		if (!threw)
1841		shouldThrow(expectedExceptionClass.getName());
#	Line 1614 | Line 1849 | public class JSR166TestCase extends Test
1849		} catch (NoSuchElementException success) {}
1850		assertFalse(it.hasNext());
1851		}
1852	+
1853	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1854	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1855	+	}
1856	+
1857	+	public Runnable runnableThrowing(final RuntimeException ex) {
1858	+	return new Runnable() { public void run() { throw ex; }};
1859	+	}
1860	+
1861	+	/** A reusable thread pool to be shared by tests. */
1862	+	static final ExecutorService cachedThreadPool =
1863	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1864	+	1000L, MILLISECONDS,
1865	+	new SynchronousQueue<Runnable>());
1866	+
1867	+	static <T> void shuffle(T[] array) {
1868	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1869	+	}
1870	+
1871	+	/**
1872	+	* Returns the same String as would be returned by {@link
1873	+	* Object#toString}, whether or not the given object's class
1874	+	* overrides toString().
1875	+	*
1876	+	* @see System#identityHashCode
1877	+	*/
1878	+	static String identityString(Object x) {
1879	+	return x.getClass().getName()
1880	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1881	+	}
1882	+
1883	+	// --- Shared assertions for Executor tests ---
1884	+
1885	+	/**
1886	+	* Returns maximum number of tasks that can be submitted to given
1887	+	* pool (with bounded queue) before saturation (when submission
1888	+	* throws RejectedExecutionException).
1889	+	*/
1890	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1891	+	BlockingQueue<Runnable> q = pool.getQueue();
1892	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1893	+	}
1894	+
1895	+	@SuppressWarnings("FutureReturnValueIgnored")
1896	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1897	+	try {
1898	+	e.execute((Runnable) null);
1899	+	shouldThrow();
1900	+	} catch (NullPointerException success) {}
1901	+
1902	+	if (! (e instanceof ExecutorService)) return;
1903	+	ExecutorService es = (ExecutorService) e;
1904	+	try {
1905	+	es.submit((Runnable) null);
1906	+	shouldThrow();
1907	+	} catch (NullPointerException success) {}
1908	+	try {
1909	+	es.submit((Runnable) null, Boolean.TRUE);
1910	+	shouldThrow();
1911	+	} catch (NullPointerException success) {}
1912	+	try {
1913	+	es.submit((Callable) null);
1914	+	shouldThrow();
1915	+	} catch (NullPointerException success) {}
1916	+
1917	+	if (! (e instanceof ScheduledExecutorService)) return;
1918	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1919	+	try {
1920	+	ses.schedule((Runnable) null,
1921	+	randomTimeout(), randomTimeUnit());
1922	+	shouldThrow();
1923	+	} catch (NullPointerException success) {}
1924	+	try {
1925	+	ses.schedule((Callable) null,
1926	+	randomTimeout(), randomTimeUnit());
1927	+	shouldThrow();
1928	+	} catch (NullPointerException success) {}
1929	+	try {
1930	+	ses.scheduleAtFixedRate((Runnable) null,
1931	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1932	+	shouldThrow();
1933	+	} catch (NullPointerException success) {}
1934	+	try {
1935	+	ses.scheduleWithFixedDelay((Runnable) null,
1936	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1937	+	shouldThrow();
1938	+	} catch (NullPointerException success) {}
1939	+	}
1940	+
1941	+	void setRejectedExecutionHandler(
1942	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1943	+	p.setRejectedExecutionHandler(handler);
1944	+	assertSame(handler, p.getRejectedExecutionHandler());
1945	+	}
1946	+
1947	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1948	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1949	+	final long savedTaskCount = p.getTaskCount();
1950	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1951	+	final int savedQueueSize = p.getQueue().size();
1952	+	final boolean stock = (p.getClass().getClassLoader() == null);
1953	+
1954	+	Runnable r = () -> {};
1955	+	Callable<Boolean> c = () -> Boolean.TRUE;
1956	+
1957	+	class Recorder implements RejectedExecutionHandler {
1958	+	public volatile Runnable r = null;
1959	+	public volatile ThreadPoolExecutor p = null;
1960	+	public void reset() { r = null; p = null; }
1961	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1962	+	assertNull(this.r);
1963	+	assertNull(this.p);
1964	+	this.r = r;
1965	+	this.p = p;
1966	+	}
1967	+	}
1968	+
1969	+	// check custom handler is invoked exactly once per task
1970	+	Recorder recorder = new Recorder();
1971	+	setRejectedExecutionHandler(p, recorder);
1972	+	for (int i = 2; i--> 0; ) {
1973	+	recorder.reset();
1974	+	p.execute(r);
1975	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1976	+	assertSame(r, recorder.r);
1977	+	assertSame(p, recorder.p);
1978	+
1979	+	recorder.reset();
1980	+	assertFalse(p.submit(r).isDone());
1981	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1982	+	assertSame(p, recorder.p);
1983	+
1984	+	recorder.reset();
1985	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1986	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1987	+	assertSame(p, recorder.p);
1988	+
1989	+	recorder.reset();
1990	+	assertFalse(p.submit(c).isDone());
1991	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1992	+	assertSame(p, recorder.p);
1993	+
1994	+	if (p instanceof ScheduledExecutorService) {
1995	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1996	+	ScheduledFuture<?> future;
1997	+
1998	+	recorder.reset();
1999	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2000	+	assertFalse(future.isDone());
2001	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2002	+	assertSame(p, recorder.p);
2003	+
2004	+	recorder.reset();
2005	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2006	+	assertFalse(future.isDone());
2007	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2008	+	assertSame(p, recorder.p);
2009	+
2010	+	recorder.reset();
2011	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2012	+	assertFalse(future.isDone());
2013	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2014	+	assertSame(p, recorder.p);
2015	+
2016	+	recorder.reset();
2017	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2018	+	assertFalse(future.isDone());
2019	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2020	+	assertSame(p, recorder.p);
2021	+	}
2022	+	}
2023	+
2024	+	// Checking our custom handler above should be sufficient, but
2025	+	// we add some integration tests of standard handlers.
2026	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2027	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2028	+
2029	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2030	+	try {
2031	+	p.execute(setThread);
2032	+	shouldThrow();
2033	+	} catch (RejectedExecutionException success) {}
2034	+	assertNull(thread.get());
2035	+
2036	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2037	+	p.execute(setThread);
2038	+	assertNull(thread.get());
2039	+
2040	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2041	+	p.execute(setThread);
2042	+	if (p.isShutdown())
2043	+	assertNull(thread.get());
2044	+	else
2045	+	assertSame(Thread.currentThread(), thread.get());
2046	+
2047	+	setRejectedExecutionHandler(p, savedHandler);
2048	+
2049	+	// check that pool was not perturbed by handlers
2050	+	assertEquals(savedTaskCount, p.getTaskCount());
2051	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2052	+	assertEquals(savedQueueSize, p.getQueue().size());
2053	+	}
2054		}

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