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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.154 by jsr166, Sat Oct 3 19:39:16 2015 UTC vs.
Revision 1.276 by jsr166, Fri Nov 25 16:39:49 2022 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 14 | Line 49 | import java.io.ByteArrayOutputStream;
49		import java.io.ObjectInputStream;
50		import java.io.ObjectOutputStream;
51		import java.lang.management.ManagementFactory;
52	+	import java.lang.management.LockInfo;
53		import java.lang.management.ThreadInfo;
54		import java.lang.management.ThreadMXBean;
55		import java.lang.reflect.Constructor;
#	Line 28 | Line 64 | import java.security.ProtectionDomain;
64		import java.security.SecurityPermission;
65		import java.util.ArrayList;
66		import java.util.Arrays;
67	+	import java.util.Collection;
68	+	import java.util.Collections;
69		import java.util.Date;
70	+	import java.util.Deque;
71		import java.util.Enumeration;
72	+	import java.util.HashSet;
73		import java.util.Iterator;
74		import java.util.List;
75		import java.util.NoSuchElementException;
76		import java.util.PropertyPermission;
77	+	import java.util.Queue;
78	+	import java.util.Set;
79		import java.util.concurrent.BlockingQueue;
80		import java.util.concurrent.Callable;
81		import java.util.concurrent.CountDownLatch;
82		import java.util.concurrent.CyclicBarrier;
83		import java.util.concurrent.ExecutionException;
84	+	import java.util.concurrent.Executor;
85		import java.util.concurrent.Executors;
86		import java.util.concurrent.ExecutorService;
87		import java.util.concurrent.ForkJoinPool;
88		import java.util.concurrent.Future;
89	+	import java.util.concurrent.FutureTask;
90		import java.util.concurrent.RecursiveAction;
91		import java.util.concurrent.RecursiveTask;
92	+	import java.util.concurrent.RejectedExecutionException;
93		import java.util.concurrent.RejectedExecutionHandler;
94		import java.util.concurrent.Semaphore;
95	+	import java.util.concurrent.ScheduledExecutorService;
96	+	import java.util.concurrent.ScheduledFuture;
97	+	import java.util.concurrent.SynchronousQueue;
98		import java.util.concurrent.ThreadFactory;
99	+	import java.util.concurrent.ThreadLocalRandom;
100		import java.util.concurrent.ThreadPoolExecutor;
101	+	import java.util.concurrent.TimeUnit;
102		import java.util.concurrent.TimeoutException;
103	+	import java.util.concurrent.atomic.AtomicBoolean;
104		import java.util.concurrent.atomic.AtomicReference;
105		import java.util.regex.Pattern;
106
56	–	import junit.framework.AssertionFailedError;
107		import junit.framework.Test;
108		import junit.framework.TestCase;
109		import junit.framework.TestResult;
#	Line 69 | Line 119 | import junit.framework.TestSuite;
119		*
120		* <ol>
121		*
122	<	* <li>All assertions in code running in generated threads must use
123	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
124	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
125	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
126	<	* particularly recommended) for other code to use these forms too.
127	<	* Only the most typically used JUnit assertion methods are defined
128	<	* this way, but enough to live with.
122	>	* <li>All code not running in the main test thread (manually spawned threads
123	>	* or the common fork join pool) must be checked for failure (and completion!).
124	>	* Mechanisms that can be used to ensure this are:
125	>	*   <ol>
126	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
127	>	*    that the task completed normally, which is checked before returning from
128	>	*    the test method in the main thread.
129	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
130	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
131	>	*    Only the most typically used JUnit assertion methods are defined
132	>	*    this way, but enough to live with.
133	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
134	>	*    or {@link #threadRecordFailure}.
135	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
136	>	*   </ol>
137		*
138		* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
139		* to invoke {@code super.setUp} and {@code super.tearDown} within
#	Line 93 | Line 151 | import junit.framework.TestSuite;
151		* but even so, if there is ever any doubt, they can all be increased
152		* in one spot to rerun tests on slower platforms.
153		*
154	+	* Class Item is used for elements of collections and related
155	+	* purposes. Many tests rely on their keys being equal to ints. To
156	+	* check these, methods mustEqual, mustContain, etc adapt the JUnit
157	+	* assert methods to intercept ints.
158	+	*
159		* <li>All threads generated must be joined inside each test case
160		* method (or {@code fail} to do so) before returning from the
161		* method. The {@code joinPool} method can be used to do this when
#	Line 108 | Line 171 | import junit.framework.TestSuite;
171		* methods as there are exceptions the method can throw. Sometimes
172		* there are multiple tests per JSR166 method when the different
173		* "normal" behaviors differ significantly. And sometimes testcases
174	<	* cover multiple methods when they cannot be tested in
112	<	* isolation.
174	>	* cover multiple methods when they cannot be tested in isolation.
175		*
176		* <li>The documentation style for testcases is to provide as javadoc
177		* a simple sentence or two describing the property that the testcase
#	Line 133 | Line 195 | import junit.framework.TestSuite;
195		* </ul>
196		*/
197		public class JSR166TestCase extends TestCase {
198	+	// No longer run with custom securityManagers
199		private static final boolean useSecurityManager =
200	<	Boolean.getBoolean("jsr166.useSecurityManager");
200	>	Boolean.getBoolean("jsr166.useSecurityManager");
201
202		protected static final boolean expensiveTests =
203		Boolean.getBoolean("jsr166.expensiveTests");
#	Line 172 | Line 235 | public class JSR166TestCase extends Test
235		private static final int suiteRuns =
236		Integer.getInteger("jsr166.suiteRuns", 1);
237
238	+	/**
239	+	* Returns the value of the system property, or NaN if not defined.
240	+	*/
241	+	private static float systemPropertyValue(String name) {
242	+	String floatString = System.getProperty(name);
243	+	if (floatString == null)
244	+	return Float.NaN;
245	+	try {
246	+	return Float.parseFloat(floatString);
247	+	} catch (NumberFormatException ex) {
248	+	throw new IllegalArgumentException(
249	+	String.format("Bad float value in system property %s=%s",
250	+	name, floatString));
251	+	}
252	+	}
253	+
254	+	private static final ThreadMXBean THREAD_MXBEAN
255	+	= ManagementFactory.getThreadMXBean();
256	+
257	+	/**
258	+	* The scaling factor to apply to standard delays used in tests.
259	+	* May be initialized from any of:
260	+	* - the "jsr166.delay.factor" system property
261	+	* - the "test.timeout.factor" system property (as used by jtreg)
262	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
263	+	* - hard-coded fuzz factor when using a known slowpoke VM
264	+	*/
265	+	private static final float delayFactor = delayFactor();
266	+
267	+	private static float delayFactor() {
268	+	float x;
269	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
270	+	return x;
271	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
272	+	return x;
273	+	String prop = System.getProperty("java.vm.version");
274	+	if (prop != null && prop.matches(".*debug.*"))
275	+	return 4.0f; // How much slower is fastdebug than product?!
276	+	return 1.0f;
277	+	}
278	+
279		public JSR166TestCase() { super(); }
280		public JSR166TestCase(String name) { super(name); }
281
#	Line 187 | Line 291 | public class JSR166TestCase extends Test
291		return (regex == null) ? null : Pattern.compile(regex);
292		}
293
294	+	// Instrumentation to debug very rare, but very annoying hung test runs.
295	+	static volatile TestCase currentTestCase;
296	+	// static volatile int currentRun = 0;
297	+	static {
298	+	Runnable wedgedTestDetector = new Runnable() { public void run() {
299	+	// Avoid spurious reports with enormous runsPerTest.
300	+	// A single test case run should never take more than 1 second.
301	+	// But let's cap it at the high end too ...
302	+	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
303	+	* Math.max((int) delayFactor, 1);
304	+	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
305	+	for (TestCase lastTestCase = currentTestCase;;) {
306	+	try { MINUTES.sleep(timeoutMinutes); }
307	+	catch (InterruptedException unexpected) { break; }
308	+	if (lastTestCase == currentTestCase) {
309	+	System.err.printf(
310	+	"Looks like we're stuck running test: %s%n",
311	+	lastTestCase);
312	+	//                     System.err.printf(
313	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
314	+	//                         lastTestCase, currentRun, runsPerTest);
315	+	//                     System.err.println("availableProcessors=" +
316	+	//                         Runtime.getRuntime().availableProcessors());
317	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
318	+	dumpTestThreads();
319	+	// one stack dump is probably enough; more would be spam
320	+	break;
321	+	}
322	+	lastTestCase = currentTestCase;
323	+	}}};
324	+	Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
325	+	thread.setDaemon(true);
326	+	thread.start();
327	+	}
328	+
329	+	//     public static String cpuModel() {
330	+	//         try {
331	+	//             java.util.regex.Matcher matcher
332	+	//               = Pattern.compile("model name\\s*: (.*)")
333	+	//                 .matcher(new String(
334	+	//                     java.nio.file.Files.readAllBytes(
335	+	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
336	+	//             matcher.find();
337	+	//             return matcher.group(1);
338	+	//         } catch (Exception ex) { return null; }
339	+	//     }
340	+
341		public void runBare() throws Throwable {
342	+	currentTestCase = this;
343		if (methodFilter == null
344		|| methodFilter.matcher(toString()).find())
345		super.runBare();
#	Line 195 | Line 347 | public class JSR166TestCase extends Test
347
348		protected void runTest() throws Throwable {
349		for (int i = 0; i < runsPerTest; i++) {
350	+	// currentRun = i;
351		if (profileTests)
352		runTestProfiled();
353		else
#	Line 212 | Line 365 | public class JSR166TestCase extends Test
365		// Never report first run of any test; treat it as a
366		// warmup run, notably to trigger all needed classloading,
367		if (i > 0)
368	<	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
368	>	System.out.printf("%s: %d%n", toString(), elapsedMillis);
369		}
370		}
371
#	Line 223 | Line 376 | public class JSR166TestCase extends Test
376		main(suite(), args);
377		}
378
379	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
380	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
381	+	long runTime;
382	+	public void startTest(Test test) {}
383	+	protected void printHeader(long runTime) {
384	+	this.runTime = runTime; // defer printing for later
385	+	}
386	+	protected void printFooter(TestResult result) {
387	+	if (result.wasSuccessful()) {
388	+	getWriter().println("OK (" + result.runCount() + " tests)"
389	+	+ "  Time: " + elapsedTimeAsString(runTime));
390	+	} else {
391	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
392	+	super.printFooter(result);
393	+	}
394	+	}
395	+	}
396	+
397	+	/**
398	+	* Returns a TestRunner that doesn't bother with unnecessary
399	+	* fluff, like printing a "." for each test case.
400	+	*/
401	+	static junit.textui.TestRunner newPithyTestRunner() {
402	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
403	+	runner.setPrinter(new PithyResultPrinter(System.out));
404	+	return runner;
405	+	}
406	+
407		/**
408		* Runs all unit tests in the given test suite.
409		* Actual behavior influenced by jsr166.* system properties.
410		*/
411	+	@SuppressWarnings("removal")
412		static void main(Test suite, String[] args) {
413		if (useSecurityManager) {
414		System.err.println("Setting a permissive security manager");
415		Policy.setPolicy(permissivePolicy());
416	<	System.setSecurityManager(new SecurityManager());
416	>	try {
417	>	System.setSecurityManager(new SecurityManager());
418	>	} catch (Throwable ok) {  // failure OK during deprecation
419	>	}
420		}
421		for (int i = 0; i < suiteRuns; i++) {
422	<	TestResult result = junit.textui.TestRunner.run(suite);
422	>	TestResult result = newPithyTestRunner().doRun(suite);
423		if (!result.wasSuccessful())
424		System.exit(1);
425		System.gc();
#	Line 260 | Line 445 | public class JSR166TestCase extends Test
445		for (String testClassName : testClassNames) {
446		try {
447		Class<?> testClass = Class.forName(testClassName);
448	<	Method m = testClass.getDeclaredMethod("suite",
264	<	new Class<?>[0]);
448	>	Method m = testClass.getDeclaredMethod("suite");
449		suite.addTest(newTestSuite((Test)m.invoke(null)));
450	<	} catch (Exception e) {
451	<	throw new Error("Missing test class", e);
450	>	} catch (ReflectiveOperationException e) {
451	>	throw new AssertionError("Missing test class", e);
452		}
453		}
454		}
#	Line 273 | Line 457 | public class JSR166TestCase extends Test
457		public static final String JAVA_SPECIFICATION_VERSION;
458		static {
459		try {
460	<	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
460	>	@SuppressWarnings("removal") double jcv =
461	>	java.security.AccessController.doPrivileged(
462		new java.security.PrivilegedAction<Double>() {
463		public Double run() {
464		return Double.valueOf(System.getProperty("java.class.version"));}});
465	<	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
465	>	JAVA_CLASS_VERSION = jcv;
466	>	@SuppressWarnings("removal") String jsv =
467	>	java.security.AccessController.doPrivileged(
468		new java.security.PrivilegedAction<String>() {
469		public String run() {
470		return System.getProperty("java.specification.version");}});
471	+	JAVA_SPECIFICATION_VERSION = jsv;
472		} catch (Throwable t) {
473		throw new Error(t);
474		}
475		}
476
477	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
478	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
479	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
480	<	public static boolean atLeastJava9() {
481	<	return JAVA_CLASS_VERSION >= 53.0
482	<	// As of 2015-09, java9 still uses 52.0 class file version
483	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
484	<	}
485	<	public static boolean atLeastJava10() {
486	<	return JAVA_CLASS_VERSION >= 54.0
487	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
488	<	}
477	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
478	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
479	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
480	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
481	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
482	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
483	>	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
484	>	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
485	>	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
486	>	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
487	>	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
488	>	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
489
490		/**
491		* Collects all JSR166 unit tests as one suite.
#	Line 318 | Line 506 | public class JSR166TestCase extends Test
506		AbstractQueuedLongSynchronizerTest.suite(),
507		ArrayBlockingQueueTest.suite(),
508		ArrayDequeTest.suite(),
509	+	ArrayListTest.suite(),
510		AtomicBooleanTest.suite(),
511		AtomicIntegerArrayTest.suite(),
512		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 340 | Line 529 | public class JSR166TestCase extends Test
529		CopyOnWriteArrayListTest.suite(),
530		CopyOnWriteArraySetTest.suite(),
531		CountDownLatchTest.suite(),
532	+	CountedCompleterTest.suite(),
533		CyclicBarrierTest.suite(),
534		DelayQueueTest.suite(),
535		EntryTest.suite(),
#	Line 347 | Line 537 | public class JSR166TestCase extends Test
537		ExecutorsTest.suite(),
538		ExecutorCompletionServiceTest.suite(),
539		FutureTaskTest.suite(),
540	+	HashtableTest.suite(),
541		LinkedBlockingDequeTest.suite(),
542		LinkedBlockingQueueTest.suite(),
543		LinkedListTest.suite(),
#	Line 368 | Line 559 | public class JSR166TestCase extends Test
559		TreeMapTest.suite(),
560		TreeSetTest.suite(),
561		TreeSubMapTest.suite(),
562	<	TreeSubSetTest.suite());
562	>	TreeSubSetTest.suite(),
563	>	VectorTest.suite());
564
565		// Java8+ test classes
566		if (atLeastJava8()) {
567		String[] java8TestClassNames = {
568	+	"ArrayDeque8Test",
569		"Atomic8Test",
570		"CompletableFutureTest",
571		"ConcurrentHashMap8Test",
572	<	"CountedCompleterTest",
572	>	"CountedCompleter8Test",
573		"DoubleAccumulatorTest",
574		"DoubleAdderTest",
575		"ForkJoinPool8Test",
576		"ForkJoinTask8Test",
577	+	"HashMapTest",
578	+	"LinkedBlockingDeque8Test",
579	+	"LinkedBlockingQueue8Test",
580	+	"LinkedHashMapTest",
581		"LongAccumulatorTest",
582		"LongAdderTest",
583		"SplittableRandomTest",
584		"StampedLockTest",
585		"SubmissionPublisherTest",
586		"ThreadLocalRandom8Test",
587	+	"TimeUnit8Test",
588		};
589		addNamedTestClasses(suite, java8TestClassNames);
590		}
#	Line 394 | Line 592 | public class JSR166TestCase extends Test
592		// Java9+ test classes
593		if (atLeastJava9()) {
594		String[] java9TestClassNames = {
595	<	// Currently empty, but expecting varhandle tests
595	>	"AtomicBoolean9Test",
596	>	"AtomicInteger9Test",
597	>	"AtomicIntegerArray9Test",
598	>	"AtomicLong9Test",
599	>	"AtomicLongArray9Test",
600	>	"AtomicReference9Test",
601	>	"AtomicReferenceArray9Test",
602	>	"ExecutorCompletionService9Test",
603	>	"ForkJoinPool9Test",
604		};
605		addNamedTestClasses(suite, java9TestClassNames);
606		}
607
608	+	if (atLeastJava17()) {
609	+	String[] java17TestClassNames = {
610	+	"ForkJoinPool19Test",
611	+	};
612	+	addNamedTestClasses(suite, java17TestClassNames);
613	+	}
614		return suite;
615		}
616
617		/** Returns list of junit-style test method names in given class. */
618		public static ArrayList<String> testMethodNames(Class<?> testClass) {
619		Method[] methods = testClass.getDeclaredMethods();
620	<	ArrayList<String> names = new ArrayList<String>(methods.length);
620	>	ArrayList<String> names = new ArrayList<>(methods.length);
621		for (Method method : methods) {
622		if (method.getName().startsWith("test")
623		&& Modifier.isPublic(method.getModifiers())
#	Line 432 | Line 644 | public class JSR166TestCase extends Test
644		for (String methodName : testMethodNames(testClass))
645		suite.addTest((Test) c.newInstance(data, methodName));
646		return suite;
647	<	} catch (Exception e) {
648	<	throw new Error(e);
647	>	} catch (ReflectiveOperationException e) {
648	>	throw new AssertionError(e);
649		}
650		}
651
#	Line 449 | Line 661 | public class JSR166TestCase extends Test
661		if (atLeastJava8()) {
662		String name = testClass.getName();
663		String name8 = name.replaceAll("Test$", "8Test");
664	<	if (name.equals(name8)) throw new Error(name);
664	>	if (name.equals(name8)) throw new AssertionError(name);
665		try {
666		return (Test)
667		Class.forName(name8)
668	<	.getMethod("testSuite", new Class[] { dataClass })
668	>	.getMethod("testSuite", dataClass)
669		.invoke(null, data);
670	<	} catch (Exception e) {
671	<	throw new Error(e);
670	>	} catch (ReflectiveOperationException e) {
671	>	throw new AssertionError(e);
672		}
673		} else {
674		return new TestSuite();
675		}
464	–
676		}
677
678		// Delays for timing-dependent tests, in milliseconds.
#	Line 472 | Line 683 | public class JSR166TestCase extends Test
683		public static long LONG_DELAY_MS;
684
685		/**
686	<	* Returns the shortest timed delay. This could
687	<	* be reimplemented to use for example a Property.
686	>	* A delay significantly longer than LONG_DELAY_MS.
687	>	* Use this in a thread that is waited for via awaitTermination(Thread).
688	>	*/
689	>	public static long LONGER_DELAY_MS;
690	>
691	>	private static final long RANDOM_TIMEOUT;
692	>	private static final long RANDOM_EXPIRED_TIMEOUT;
693	>	private static final TimeUnit RANDOM_TIMEUNIT;
694	>	static {
695	>	ThreadLocalRandom rnd = ThreadLocalRandom.current();
696	>	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
697	>	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
698	>	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
699	>	TimeUnit[] timeUnits = TimeUnit.values();
700	>	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
701	>	}
702	>
703	>	/**
704	>	* Returns a timeout for use when any value at all will do.
705	>	*/
706	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
707	>
708	>	/**
709	>	* Returns a timeout that means "no waiting", i.e. not positive.
710	>	*/
711	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
712	>
713	>	/**
714	>	* Returns a random non-null TimeUnit.
715	>	*/
716	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
717	>
718	>	/**
719	>	* Returns a random boolean; a "coin flip".
720	>	*/
721	>	static boolean randomBoolean() {
722	>	return ThreadLocalRandom.current().nextBoolean();
723	>	}
724	>
725	>	/**
726	>	* Returns a random element from given choices.
727	>	*/
728	>	<T> T chooseRandomly(List<T> choices) {
729	>	return choices.get(ThreadLocalRandom.current().nextInt(choices.size()));
730	>	}
731	>
732	>	/**
733	>	* Returns a random element from given choices.
734	>	*/
735	>	@SuppressWarnings("unchecked")
736	>	<T> T chooseRandomly(T... choices) {
737	>	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
738	>	}
739	>
740	>	/**
741	>	* Returns the shortest timed delay. This can be scaled up for
742	>	* slow machines using the jsr166.delay.factor system property,
743	>	* or via jtreg's -timeoutFactor: flag.
744	>	* http://openjdk.java.net/jtreg/command-help.html
745		*/
746		protected long getShortDelay() {
747	<	return 50;
747	>	return (long) (50 * delayFactor);
748		}
749
750		/**
#	Line 487 | Line 755 | public class JSR166TestCase extends Test
755		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
756		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
757		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
758	+	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
759		}
760
761	+	private static final long TIMEOUT_DELAY_MS
762	+	= (long) (12.0 * Math.cbrt(delayFactor));
763	+
764		/**
765	<	* Returns a timeout in milliseconds to be used in tests that
766	<	* verify that operations block or time out.
765	>	* Returns a timeout in milliseconds to be used in tests that verify
766	>	* that operations block or time out.  We want this to be longer
767	>	* than the OS scheduling quantum, but not too long, so don't scale
768	>	* linearly with delayFactor; we use "crazy" cube root instead.
769		*/
770	<	long timeoutMillis() {
771	<	return SHORT_DELAY_MS / 4;
770	>	static long timeoutMillis() {
771	>	return TIMEOUT_DELAY_MS;
772		}
773
774		/**
#	Line 510 | Line 784 | public class JSR166TestCase extends Test
784		* The first exception encountered if any threadAssertXXX method fails.
785		*/
786		private final AtomicReference<Throwable> threadFailure
787	<	= new AtomicReference<Throwable>(null);
787	>	= new AtomicReference<>(null);
788
789		/**
790		* Records an exception so that it can be rethrown later in the test
#	Line 519 | Line 793 | public class JSR166TestCase extends Test
793		* the same test have no effect.
794		*/
795		public void threadRecordFailure(Throwable t) {
796	<	threadDump();
797	<	threadFailure.compareAndSet(null, t);
796	>	System.err.println(t);
797	>	if (threadFailure.compareAndSet(null, t))
798	>	dumpTestThreads();
799		}
800
801		public void setUp() {
#	Line 530 | Line 805 | public class JSR166TestCase extends Test
805		void tearDownFail(String format, Object... args) {
806		String msg = toString() + ": " + String.format(format, args);
807		System.err.println(msg);
808	<	threadDump();
809	<	throw new AssertionFailedError(msg);
808	>	dumpTestThreads();
809	>	throw new AssertionError(msg);
810		}
811
812		/**
#	Line 552 | Line 827 | public class JSR166TestCase extends Test
827		throw (RuntimeException) t;
828		else if (t instanceof Exception)
829		throw (Exception) t;
830	<	else {
831	<	AssertionFailedError afe =
557	<	new AssertionFailedError(t.toString());
558	<	afe.initCause(t);
559	<	throw afe;
560	<	}
830	>	else
831	>	throw new AssertionError(t.toString(), t);
832		}
833
834		if (Thread.interrupted())
#	Line 567 | Line 838 | public class JSR166TestCase extends Test
838		}
839
840		/**
841	<	* Finds missing try { ... } finally { joinPool(e); }
841	>	* Finds missing PoolCleaners
842		*/
843		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
844		Thread[] survivors = new Thread[7];
#	Line 591 | Line 862 | public class JSR166TestCase extends Test
862
863		/**
864		* Just like fail(reason), but additionally recording (using
865	<	* threadRecordFailure) any AssertionFailedError thrown, so that
866	<	* the current testcase will fail.
865	>	* threadRecordFailure) any AssertionError thrown, so that the
866	>	* current testcase will fail.
867		*/
868		public void threadFail(String reason) {
869		try {
870		fail(reason);
871	<	} catch (AssertionFailedError t) {
872	<	threadRecordFailure(t);
873	<	throw t;
871	>	} catch (AssertionError fail) {
872	>	threadRecordFailure(fail);
873	>	throw fail;
874		}
875		}
876
877		/**
878		* Just like assertTrue(b), but additionally recording (using
879	<	* threadRecordFailure) any AssertionFailedError thrown, so that
880	<	* the current testcase will fail.
879	>	* threadRecordFailure) any AssertionError thrown, so that the
880	>	* current testcase will fail.
881		*/
882		public void threadAssertTrue(boolean b) {
883		try {
884		assertTrue(b);
885	<	} catch (AssertionFailedError t) {
886	<	threadRecordFailure(t);
887	<	throw t;
885	>	} catch (AssertionError fail) {
886	>	threadRecordFailure(fail);
887	>	throw fail;
888		}
889		}
890
891		/**
892		* Just like assertFalse(b), but additionally recording (using
893	<	* threadRecordFailure) any AssertionFailedError thrown, so that
894	<	* the current testcase will fail.
893	>	* threadRecordFailure) any AssertionError thrown, so that the
894	>	* current testcase will fail.
895		*/
896		public void threadAssertFalse(boolean b) {
897		try {
898		assertFalse(b);
899	<	} catch (AssertionFailedError t) {
900	<	threadRecordFailure(t);
901	<	throw t;
899	>	} catch (AssertionError fail) {
900	>	threadRecordFailure(fail);
901	>	throw fail;
902		}
903		}
904
905		/**
906		* Just like assertNull(x), but additionally recording (using
907	<	* threadRecordFailure) any AssertionFailedError thrown, so that
908	<	* the current testcase will fail.
907	>	* threadRecordFailure) any AssertionError thrown, so that the
908	>	* current testcase will fail.
909		*/
910		public void threadAssertNull(Object x) {
911		try {
912		assertNull(x);
913	<	} catch (AssertionFailedError t) {
914	<	threadRecordFailure(t);
915	<	throw t;
913	>	} catch (AssertionError fail) {
914	>	threadRecordFailure(fail);
915	>	throw fail;
916		}
917		}
918
919		/**
920		* Just like assertEquals(x, y), but additionally recording (using
921	<	* threadRecordFailure) any AssertionFailedError thrown, so that
922	<	* the current testcase will fail.
921	>	* threadRecordFailure) any AssertionError thrown, so that the
922	>	* current testcase will fail.
923		*/
924		public void threadAssertEquals(long x, long y) {
925		try {
926		assertEquals(x, y);
927	<	} catch (AssertionFailedError t) {
928	<	threadRecordFailure(t);
929	<	throw t;
927	>	} catch (AssertionError fail) {
928	>	threadRecordFailure(fail);
929	>	throw fail;
930		}
931		}
932
933		/**
934		* Just like assertEquals(x, y), but additionally recording (using
935	<	* threadRecordFailure) any AssertionFailedError thrown, so that
936	<	* the current testcase will fail.
935	>	* threadRecordFailure) any AssertionError thrown, so that the
936	>	* current testcase will fail.
937		*/
938		public void threadAssertEquals(Object x, Object y) {
939		try {
940		assertEquals(x, y);
941	<	} catch (AssertionFailedError fail) {
941	>	} catch (AssertionError fail) {
942		threadRecordFailure(fail);
943		throw fail;
944		} catch (Throwable fail) {
#	Line 677 | Line 948 | public class JSR166TestCase extends Test
948
949		/**
950		* Just like assertSame(x, y), but additionally recording (using
951	<	* threadRecordFailure) any AssertionFailedError thrown, so that
952	<	* the current testcase will fail.
951	>	* threadRecordFailure) any AssertionError thrown, so that the
952	>	* current testcase will fail.
953		*/
954		public void threadAssertSame(Object x, Object y) {
955		try {
956		assertSame(x, y);
957	<	} catch (AssertionFailedError fail) {
957	>	} catch (AssertionError fail) {
958		threadRecordFailure(fail);
959		throw fail;
960		}
#	Line 705 | Line 976 | public class JSR166TestCase extends Test
976
977		/**
978		* Records the given exception using {@link #threadRecordFailure},
979	<	* then rethrows the exception, wrapping it in an
980	<	* AssertionFailedError if necessary.
979	>	* then rethrows the exception, wrapping it in an AssertionError
980	>	* if necessary.
981		*/
982		public void threadUnexpectedException(Throwable t) {
983		threadRecordFailure(t);
#	Line 715 | Line 986 | public class JSR166TestCase extends Test
986		throw (RuntimeException) t;
987		else if (t instanceof Error)
988		throw (Error) t;
989	<	else {
990	<	AssertionFailedError afe =
720	<	new AssertionFailedError("unexpected exception: " + t);
721	<	afe.initCause(t);
722	<	throw afe;
723	<	}
989	>	else
990	>	throw new AssertionError("unexpected exception: " + t, t);
991		}
992
993		/**
994		* Delays, via Thread.sleep, for the given millisecond delay, but
995		* if the sleep is shorter than specified, may re-sleep or yield
996	<	* until time elapses.
996	>	* until time elapses.  Ensures that the given time, as measured
997	>	* by System.nanoTime(), has elapsed.
998		*/
999		static void delay(long millis) throws InterruptedException {
1000	<	long startTime = System.nanoTime();
1001	<	long ns = millis * 1000 * 1000;
1002	<	for (;;) {
1000	>	long nanos = millis * (1000 * 1000);
1001	>	final long wakeupTime = System.nanoTime() + nanos;
1002	>	do {
1003		if (millis > 0L)
1004		Thread.sleep(millis);
1005		else // too short to sleep
1006		Thread.yield();
1007	<	long d = ns - (System.nanoTime() - startTime);
1008	<	if (d > 0L)
1009	<	millis = d / (1000 * 1000);
742	<	else
743	<	break;
744	<	}
1007	>	nanos = wakeupTime - System.nanoTime();
1008	>	millis = nanos / (1000 * 1000);
1009	>	} while (nanos >= 0L);
1010		}
1011
1012		/**
1013		* Allows use of try-with-resources with per-test thread pools.
1014		*/
1015	<	static class PoolCloser<T extends ExecutorService>
1016	<	implements AutoCloseable {
1017	<	public final T pool;
753	<	public PoolCloser(T pool) { this.pool = pool; }
1015	>	class PoolCleaner implements AutoCloseable {
1016	>	private final ExecutorService pool;
1017	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
1018		public void close() { joinPool(pool); }
1019		}
1020
1021		/**
1022	+	* An extension of PoolCleaner that has an action to release the pool.
1023	+	*/
1024	+	class PoolCleanerWithReleaser extends PoolCleaner {
1025	+	private final Runnable releaser;
1026	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
1027	+	super(pool);
1028	+	this.releaser = releaser;
1029	+	}
1030	+	public void close() {
1031	+	try {
1032	+	releaser.run();
1033	+	} finally {
1034	+	super.close();
1035	+	}
1036	+	}
1037	+	}
1038	+
1039	+	PoolCleaner cleaner(ExecutorService pool) {
1040	+	return new PoolCleaner(pool);
1041	+	}
1042	+
1043	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
1044	+	return new PoolCleanerWithReleaser(pool, releaser);
1045	+	}
1046	+
1047	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1048	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
1049	+	}
1050	+
1051	+	Runnable releaser(final CountDownLatch latch) {
1052	+	return new Runnable() { public void run() {
1053	+	do { latch.countDown(); }
1054	+	while (latch.getCount() > 0);
1055	+	}};
1056	+	}
1057	+
1058	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1059	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1060	+	}
1061	+
1062	+	Runnable releaser(final AtomicBoolean flag) {
1063	+	return new Runnable() { public void run() { flag.set(true); }};
1064	+	}
1065	+
1066	+	/**
1067		* Waits out termination of a thread pool or fails doing so.
1068		*/
1069	<	static void joinPool(ExecutorService pool) {
1069	>	void joinPool(ExecutorService pool) {
1070		try {
1071		pool.shutdown();
1072	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1073	<	fail("ExecutorService " + pool +
1074	<	" did not terminate in a timely manner");
1072	>	if (!pool.awaitTermination(20 * LONG_DELAY_MS, MILLISECONDS)) {
1073	>	try {
1074	>	threadFail("ExecutorService " + pool +
1075	>	" did not terminate in a timely manner");
1076	>	} finally {
1077	>	// last resort, for the benefit of subsequent tests
1078	>	pool.shutdownNow();
1079	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1080	>	}
1081	>	}
1082		} catch (SecurityException ok) {
1083		// Allowed in case test doesn't have privs
1084		} catch (InterruptedException fail) {
1085	<	fail("Unexpected InterruptedException");
1085	>	threadFail("Unexpected InterruptedException");
1086		}
1087		}
1088
1089	<	/** Like Runnable, but with the freedom to throw anything */
1089	>	/**
1090	>	* Like Runnable, but with the freedom to throw anything.
1091	>	* junit folks had the same idea:
1092	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1093	>	*/
1094		interface Action { public void run() throws Throwable; }
1095
1096		/**
#	Line 779 | Line 1099 | public class JSR166TestCase extends Test
1099		* necessarily individually slow because they must block.
1100		*/
1101		void testInParallel(Action ... actions) {
1102	<	try (PoolCloser<ExecutorService> poolCloser
1103	<	= new PoolCloser<>(Executors.newCachedThreadPool())) {
784	<	ExecutorService pool = poolCloser.pool;
1102	>	ExecutorService pool = Executors.newCachedThreadPool();
1103	>	try (PoolCleaner cleaner = cleaner(pool)) {
1104		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1105		for (final Action action : actions)
1106		futures.add(pool.submit(new CheckedRunnable() {
#	Line 797 | Line 1116 | public class JSR166TestCase extends Test
1116		}
1117		}
1118
1119	+	/** Returns true if thread info might be useful in a thread dump. */
1120	+	static boolean threadOfInterest(ThreadInfo info) {
1121	+	final String name = info.getThreadName();
1122	+	String lockName;
1123	+	if (name == null)
1124	+	return true;
1125	+	if (name.equals("Signal Dispatcher")
1126	+	|| name.equals("WedgedTestDetector"))
1127	+	return false;
1128	+	if (name.equals("Reference Handler")) {
1129	+	// Reference Handler stacktrace changed in JDK-8156500
1130	+	StackTraceElement[] stackTrace; String methodName;
1131	+	if ((stackTrace = info.getStackTrace()) != null
1132	+	&& stackTrace.length > 0
1133	+	&& (methodName = stackTrace[0].getMethodName()) != null
1134	+	&& methodName.equals("waitForReferencePendingList"))
1135	+	return false;
1136	+	// jdk8 Reference Handler stacktrace
1137	+	if ((lockName = info.getLockName()) != null
1138	+	&& lockName.startsWith("java.lang.ref"))
1139	+	return false;
1140	+	}
1141	+	if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1142	+	&& (lockName = info.getLockName()) != null
1143	+	&& lockName.startsWith("java.lang.ref"))
1144	+	return false;
1145	+	if (name.startsWith("ForkJoinPool.commonPool-worker")
1146	+	&& (lockName = info.getLockName()) != null
1147	+	&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1148	+	return false;
1149	+	return true;
1150	+	}
1151	+
1152		/**
1153	<	* A debugging tool to print all stack traces, as jstack does.
1153	>	* A debugging tool to print stack traces of most threads, as jstack does.
1154		* Uninteresting threads are filtered out.
1155		*/
1156	<	static void threadDump() {
1157	<	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1158	<	System.err.println("------ stacktrace dump start ------");
1159	<	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1160	<	String name = info.getThreadName();
1161	<	if ("Signal Dispatcher".equals(name))
1162	<	continue;
1163	<	if ("Reference Handler".equals(name)
1164	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
813	<	continue;
814	<	if ("Finalizer".equals(name)
815	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
816	<	continue;
817	<	System.err.print(info);
1156	>	@SuppressWarnings("removal")
1157	>	static void dumpTestThreads() {
1158	>	SecurityManager sm = System.getSecurityManager();
1159	>	if (sm != null) {
1160	>	try {
1161	>	System.setSecurityManager(null);
1162	>	} catch (SecurityException giveUp) {
1163	>	return;
1164	>	}
1165		}
1166	+
1167	+	System.err.println("------ stacktrace dump start ------");
1168	+	for (ThreadInfo info : THREAD_MXBEAN.dumpAllThreads(true, true))
1169	+	if (threadOfInterest(info))
1170	+	System.err.print(info);
1171		System.err.println("------ stacktrace dump end ------");
820	–	}
1172
1173	<	/**
823	<	* Checks that thread does not terminate within the default
824	<	* millisecond delay of {@code timeoutMillis()}.
825	<	*/
826	<	void assertThreadStaysAlive(Thread thread) {
827	<	assertThreadStaysAlive(thread, timeoutMillis());
1173	>	if (sm != null) System.setSecurityManager(sm);
1174		}
1175
1176		/**
1177	<	* Checks that thread does not terminate within the given millisecond delay.
1177	>	* Checks that thread eventually enters the expected blocked thread state.
1178		*/
1179	<	void assertThreadStaysAlive(Thread thread, long millis) {
1180	<	try {
1181	<	// No need to optimize the failing case via Thread.join.
1182	<	delay(millis);
1183	<	assertTrue(thread.isAlive());
1184	<	} catch (InterruptedException fail) {
1185	<	fail("Unexpected InterruptedException");
1179	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1180	>	// always sleep at least 1 ms, with high probability avoiding
1181	>	// transitory states
1182	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1183	>	try { delay(1); }
1184	>	catch (InterruptedException fail) {
1185	>	throw new AssertionError("Unexpected InterruptedException", fail);
1186	>	}
1187	>	Thread.State s = thread.getState();
1188	>	if (s == expected)
1189	>	return;
1190	>	else if (s == Thread.State.TERMINATED)
1191	>	fail("Unexpected thread termination");
1192		}
1193	+	fail("timed out waiting for thread to enter thread state " + expected);
1194		}
1195
1196		/**
1197	<	* Checks that the threads do not terminate within the default
845	<	* millisecond delay of {@code timeoutMillis()}.
1197	>	* Returns the thread's blocker's class name, if any, else null.
1198		*/
1199	<	void assertThreadsStayAlive(Thread... threads) {
1200	<	assertThreadsStayAlive(timeoutMillis(), threads);
1201	<	}
1202	<
1203	<	/**
1204	<	* Checks that the threads do not terminate within the given millisecond delay.
853	<	*/
854	<	void assertThreadsStayAlive(long millis, Thread... threads) {
855	<	try {
856	<	// No need to optimize the failing case via Thread.join.
857	<	delay(millis);
858	<	for (Thread thread : threads)
859	<	assertTrue(thread.isAlive());
860	<	} catch (InterruptedException fail) {
861	<	fail("Unexpected InterruptedException");
862	<	}
1199	>	String blockerClassName(Thread thread) {
1200	>	ThreadInfo threadInfo; LockInfo lockInfo;
1201	>	if ((threadInfo = THREAD_MXBEAN.getThreadInfo(thread.getId(), 0)) != null
1202	>	&& (lockInfo = threadInfo.getLockInfo()) != null)
1203	>	return lockInfo.getClassName();
1204	>	return null;
1205		}
1206
1207		/**
1208		* Checks that future.get times out, with the default timeout of
1209		* {@code timeoutMillis()}.
1210		*/
1211	<	void assertFutureTimesOut(Future future) {
1211	>	void assertFutureTimesOut(Future<?> future) {
1212		assertFutureTimesOut(future, timeoutMillis());
1213		}
1214
1215		/**
1216		* Checks that future.get times out, with the given millisecond timeout.
1217		*/
1218	<	void assertFutureTimesOut(Future future, long timeoutMillis) {
1218	>	void assertFutureTimesOut(Future<?> future, long timeoutMillis) {
1219		long startTime = System.nanoTime();
1220		try {
1221		future.get(timeoutMillis, MILLISECONDS);
#	Line 881 | Line 1223 | public class JSR166TestCase extends Test
1223		} catch (TimeoutException success) {
1224		} catch (Exception fail) {
1225		threadUnexpectedException(fail);
1226	<	} finally { future.cancel(true); }
1226	>	}
1227		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1228	+	assertFalse(future.isDone());
1229		}
1230
1231		/**
#	Line 900 | Line 1243 | public class JSR166TestCase extends Test
1243		}
1244
1245		/**
1246	<	* The number of elements to place in collections, arrays, etc.
1246	>	* The maximum number of consecutive spurious wakeups we should
1247	>	* tolerate (from APIs like LockSupport.park) before failing a test.
1248		*/
1249	<	public static final int SIZE = 20;
1249	>	static final int MAX_SPURIOUS_WAKEUPS = 10;
1250
1251	<	// Some convenient Integer constants
1251	>	/**
1252	>	* The number of elements to place in collections, arrays, etc.
1253	>	* Must be at least ten;
1254	>	*/
1255	>	public static final int SIZE = 32;
1256
1257	<	public static final Integer zero  = new Integer(0);
1258	<	public static final Integer one   = new Integer(1);
1259	<	public static final Integer two   = new Integer(2);
1260	<	public static final Integer three = new Integer(3);
1261	<	public static final Integer four  = new Integer(4);
1262	<	public static final Integer five  = new Integer(5);
1263	<	public static final Integer six   = new Integer(6);
1264	<	public static final Integer seven = new Integer(7);
1265	<	public static final Integer eight = new Integer(8);
1266	<	public static final Integer nine  = new Integer(9);
1267	<	public static final Integer m1  = new Integer(-1);
1268	<	public static final Integer m2  = new Integer(-2);
1269	<	public static final Integer m3  = new Integer(-3);
1270	<	public static final Integer m4  = new Integer(-4);
1271	<	public static final Integer m5  = new Integer(-5);
1272	<	public static final Integer m6  = new Integer(-6);
1273	<	public static final Integer m10 = new Integer(-10);
1257	>	static Item[] seqItems(int size) {
1258	>	Item[] s = new Item[size];
1259	>	for (int i = 0; i < size; ++i)
1260	>	s[i] = new Item(i);
1261	>	return s;
1262	>	}
1263	>	static Item[] negativeSeqItems(int size) {
1264	>	Item[] s = new Item[size];
1265	>	for (int i = 0; i < size; ++i)
1266	>	s[i] = new Item(-i);
1267	>	return s;
1268	>	}
1269	>
1270	>	// Many tests rely on defaultItems all being sequential nonnegative
1271	>	public static final Item[] defaultItems = seqItems(SIZE);
1272	>
1273	>	static Item itemFor(int i) { // check cache for defaultItems
1274	>	Item[] items = defaultItems;
1275	>	return (i >= 0 && i < items.length) ? items[i] : new Item(i);
1276	>	}
1277	>
1278	>	public static final Item zero  = defaultItems[0];
1279	>	public static final Item one   = defaultItems[1];
1280	>	public static final Item two   = defaultItems[2];
1281	>	public static final Item three = defaultItems[3];
1282	>	public static final Item four  = defaultItems[4];
1283	>	public static final Item five  = defaultItems[5];
1284	>	public static final Item six   = defaultItems[6];
1285	>	public static final Item seven = defaultItems[7];
1286	>	public static final Item eight = defaultItems[8];
1287	>	public static final Item nine  = defaultItems[9];
1288	>	public static final Item ten   = defaultItems[10];
1289	>
1290	>	public static final Item[] negativeItems = negativeSeqItems(SIZE);
1291	>
1292	>	public static final Item minusOne   = negativeItems[1];
1293	>	public static final Item minusTwo   = negativeItems[2];
1294	>	public static final Item minusThree = negativeItems[3];
1295	>	public static final Item minusFour  = negativeItems[4];
1296	>	public static final Item minusFive  = negativeItems[5];
1297	>	public static final Item minusSix   = negativeItems[6];
1298	>	public static final Item minusSeven = negativeItems[7];
1299	>	public static final Item minusEight = negativeItems[8];
1300	>	public static final Item minusNone  = negativeItems[9];
1301	>	public static final Item minusTen   = negativeItems[10];
1302	>
1303	>	// elements expected to be missing
1304	>	public static final Item fortytwo = new Item(42);
1305	>	public static final Item eightysix = new Item(86);
1306	>	public static final Item ninetynine = new Item(99);
1307	>
1308	>	// Interop across Item, int
1309	>
1310	>	static void mustEqual(Item x, Item y) {
1311	>	if (x != y)
1312	>	assertEquals(x.value, y.value);
1313	>	}
1314	>	static void mustEqual(Item x, int y) {
1315	>	assertEquals(x.value, y);
1316	>	}
1317	>	static void mustEqual(int x, Item y) {
1318	>	assertEquals(x, y.value);
1319	>	}
1320	>	static void mustEqual(int x, int y) {
1321	>	assertEquals(x, y);
1322	>	}
1323	>	static void mustEqual(Object x, Object y) {
1324	>	if (x != y)
1325	>	assertEquals(x, y);
1326	>	}
1327	>	static void mustEqual(int x, Object y) {
1328	>	if (y instanceof Item)
1329	>	assertEquals(x, ((Item)y).value);
1330	>	else fail();
1331	>	}
1332	>	static void mustEqual(Object x, int y) {
1333	>	if (x instanceof Item)
1334	>	assertEquals(((Item)x).value, y);
1335	>	else fail();
1336	>	}
1337	>	static void mustEqual(boolean x, boolean y) {
1338	>	assertEquals(x, y);
1339	>	}
1340	>	static void mustEqual(long x, long y) {
1341	>	assertEquals(x, y);
1342	>	}
1343	>	static void mustEqual(double x, double y) {
1344	>	assertEquals(x, y);
1345	>	}
1346	>	static void mustContain(Collection<Item> c, int i) {
1347	>	assertTrue(c.contains(itemFor(i)));
1348	>	}
1349	>	static void mustContain(Collection<Item> c, Item i) {
1350	>	assertTrue(c.contains(i));
1351	>	}
1352	>	static void mustNotContain(Collection<Item> c, int i) {
1353	>	assertFalse(c.contains(itemFor(i)));
1354	>	}
1355	>	static void mustNotContain(Collection<Item> c, Item i) {
1356	>	assertFalse(c.contains(i));
1357	>	}
1358	>	static void mustRemove(Collection<Item> c, int i) {
1359	>	assertTrue(c.remove(itemFor(i)));
1360	>	}
1361	>	static void mustRemove(Collection<Item> c, Item i) {
1362	>	assertTrue(c.remove(i));
1363	>	}
1364	>	static void mustNotRemove(Collection<Item> c, int i) {
1365	>	assertFalse(c.remove(itemFor(i)));
1366	>	}
1367	>	static void mustNotRemove(Collection<Item> c, Item i) {
1368	>	assertFalse(c.remove(i));
1369	>	}
1370	>	static void mustAdd(Collection<Item> c, int i) {
1371	>	assertTrue(c.add(itemFor(i)));
1372	>	}
1373	>	static void mustAdd(Collection<Item> c, Item i) {
1374	>	assertTrue(c.add(i));
1375	>	}
1376	>	static void mustOffer(Queue<Item> c, int i) {
1377	>	assertTrue(c.offer(itemFor(i)));
1378	>	}
1379	>	static void mustOffer(Queue<Item> c, Item i) {
1380	>	assertTrue(c.offer(i));
1381	>	}
1382
1383		/**
1384		* Runs Runnable r with a security policy that permits precisely
#	Line 931 | Line 1387 | public class JSR166TestCase extends Test
1387		* security manager.  We require that any security manager permit
1388		* getPolicy/setPolicy.
1389		*/
1390	+	@SuppressWarnings("removal")
1391		public void runWithPermissions(Runnable r, Permission... permissions) {
1392		SecurityManager sm = System.getSecurityManager();
1393		if (sm == null) {
#	Line 946 | Line 1403 | public class JSR166TestCase extends Test
1403		* Runnable.  We require that any security manager permit
1404		* getPolicy/setPolicy.
1405		*/
1406	+	@SuppressWarnings("removal")
1407		public void runWithSecurityManagerWithPermissions(Runnable r,
1408		Permission... permissions) {
1409	+	if (!useSecurityManager) return;
1410		SecurityManager sm = System.getSecurityManager();
1411		if (sm == null) {
1412		Policy savedPolicy = Policy.getPolicy();
#	Line 955 | Line 1414 | public class JSR166TestCase extends Test
1414		Policy.setPolicy(permissivePolicy());
1415		System.setSecurityManager(new SecurityManager());
1416		runWithSecurityManagerWithPermissions(r, permissions);
1417	+	} catch (UnsupportedOperationException ok) {
1418		} finally {
1419	<	System.setSecurityManager(null);
1420	<	Policy.setPolicy(savedPolicy);
1419	>	try {
1420	>	System.setSecurityManager(null);
1421	>	Policy.setPolicy(savedPolicy);
1422	>	} catch (Exception ok) {
1423	>	}
1424		}
1425		} else {
1426		Policy savedPolicy = Policy.getPolicy();
#	Line 984 | Line 1447 | public class JSR166TestCase extends Test
1447		* A security policy where new permissions can be dynamically added
1448		* or all cleared.
1449		*/
1450	+	@SuppressWarnings("removal")
1451		public static class AdjustablePolicy extends java.security.Policy {
1452		Permissions perms = new Permissions();
1453		AdjustablePolicy(Permission... permissions) {
#	Line 1003 | Line 1467 | public class JSR166TestCase extends Test
1467		}
1468		public void refresh() {}
1469		public String toString() {
1470	<	List<Permission> ps = new ArrayList<Permission>();
1470	>	List<Permission> ps = new ArrayList<>();
1471		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1472		ps.add(e.nextElement());
1473		return "AdjustablePolicy with permissions " + ps;
#	Line 1013 | Line 1477 | public class JSR166TestCase extends Test
1477		/**
1478		* Returns a policy containing all the permissions we ever need.
1479		*/
1480	+	@SuppressWarnings("removal")
1481		public static Policy permissivePolicy() {
1482		return new AdjustablePolicy
1483		// Permissions j.u.c. needs directly
#	Line 1031 | Line 1496 | public class JSR166TestCase extends Test
1496
1497		/**
1498		* Sleeps until the given time has elapsed.
1499	<	* Throws AssertionFailedError if interrupted.
1499	>	* Throws AssertionError if interrupted.
1500		*/
1501	<	void sleep(long millis) {
1501	>	static void sleep(long millis) {
1502		try {
1503		delay(millis);
1504		} catch (InterruptedException fail) {
1505	<	AssertionFailedError afe =
1041	<	new AssertionFailedError("Unexpected InterruptedException");
1042	<	afe.initCause(fail);
1043	<	throw afe;
1505	>	throw new AssertionError("Unexpected InterruptedException", fail);
1506		}
1507		}
1508
1509		/**
1510		* Spin-waits up to the specified number of milliseconds for the given
1511		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1512	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1513		*/
1514	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1515	<	long startTime = System.nanoTime();
1516	<	for (;;) {
1517	<	Thread.State s = thread.getState();
1518	<	if (s == Thread.State.BLOCKED ||
1519	<	s == Thread.State.WAITING ||
1520	<	s == Thread.State.TIMED_WAITING)
1521	<	return;
1522	<	else if (s == Thread.State.TERMINATED)
1514	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1515	>	Callable<Boolean> waitingForGodot) {
1516	>	for (long startTime = 0L;;) {
1517	>	switch (thread.getState()) {
1518	>	default: break;
1519	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1520	>	try {
1521	>	if (waitingForGodot == null || waitingForGodot.call())
1522	>	return;
1523	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1524	>	break;
1525	>	case TERMINATED:
1526		fail("Unexpected thread termination");
1527	+	}
1528	+
1529	+	if (startTime == 0L)
1530	+	startTime = System.nanoTime();
1531		else if (millisElapsedSince(startTime) > timeoutMillis) {
1532	<	threadAssertTrue(thread.isAlive());
1533	<	return;
1532	>	assertTrue(thread.isAlive());
1533	>	if (waitingForGodot == null
1534	>	|| thread.getState() == Thread.State.RUNNABLE)
1535	>	fail("timed out waiting for thread to enter wait state");
1536	>	else
1537	>	fail("timed out waiting for condition, thread state="
1538	>	+ thread.getState());
1539		}
1540		Thread.yield();
1541		}
1542		}
1543
1544		/**
1545	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1546	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1545	>	* Spin-waits up to the specified number of milliseconds for the given
1546	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1547	>	*/
1548	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1549	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1550	>	}
1551	>
1552	>	/**
1553	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1554	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1555		*/
1556		void waitForThreadToEnterWaitState(Thread thread) {
1557	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1557	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1558	>	}
1559	>
1560	>	/**
1561	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1562	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1563	>	* and additionally satisfy the given condition.
1564	>	*/
1565	>	void waitForThreadToEnterWaitState(Thread thread,
1566	>	Callable<Boolean> waitingForGodot) {
1567	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1568	>	}
1569	>
1570	>	/**
1571	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1572	>	* be interrupted.  Clears the interrupt status before returning.
1573	>	*/
1574	>	void awaitInterrupted() {
1575	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1576	>	if (startTime == 0L)
1577	>	startTime = System.nanoTime();
1578	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1579	>	fail("timed out waiting for thread interrupt");
1580	>	Thread.yield();
1581	>	}
1582		}
1583
1584		/**
#	Line 1083 | Line 1590 | public class JSR166TestCase extends Test
1590		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1591		}
1592
1086	–	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1087	–	//         long startTime = System.nanoTime();
1088	–	//         try {
1089	–	//             r.run();
1090	–	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1091	–	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1092	–	//             throw new AssertionFailedError("did not return promptly");
1093	–	//     }
1094	–
1095	–	//     void assertTerminatesPromptly(Runnable r) {
1096	–	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1097	–	//     }
1098	–
1593		/**
1594		* Checks that timed f.get() returns the expected value, and does not
1595		* wait for the timeout to elapse before returning.
1596		*/
1597		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1598		long startTime = System.nanoTime();
1599	+	T actual = null;
1600		try {
1601	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1601	>	actual = f.get(timeoutMillis, MILLISECONDS);
1602		} catch (Throwable fail) { threadUnexpectedException(fail); }
1603	+	assertEquals(expectedValue, actual);
1604		if (millisElapsedSince(startTime) > timeoutMillis/2)
1605	<	throw new AssertionFailedError("timed get did not return promptly");
1605	>	throw new AssertionError("timed get did not return promptly");
1606		}
1607
1608		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1124 | Line 1620 | public class JSR166TestCase extends Test
1620		}
1621
1622		/**
1623	+	* Returns a new started daemon Thread running the given action,
1624	+	* wrapped in a CheckedRunnable.
1625	+	*/
1626	+	Thread newStartedThread(Action action) {
1627	+	return newStartedThread(checkedRunnable(action));
1628	+	}
1629	+
1630	+	/**
1631		* Waits for the specified time (in milliseconds) for the thread
1632		* to terminate (using {@link Thread#join(long)}), else interrupts
1633		* the thread (in the hope that it may terminate later) and fails.
1634		*/
1635	<	void awaitTermination(Thread t, long timeoutMillis) {
1635	>	void awaitTermination(Thread thread, long timeoutMillis) {
1636		try {
1637	<	t.join(timeoutMillis);
1637	>	thread.join(timeoutMillis);
1638		} catch (InterruptedException fail) {
1639		threadUnexpectedException(fail);
1640	<	} finally {
1641	<	if (t.getState() != Thread.State.TERMINATED) {
1642	<	t.interrupt();
1643	<	fail("Test timed out");
1640	>	}
1641	>	if (thread.getState() != Thread.State.TERMINATED) {
1642	>	String detail = String.format(
1643	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1644	>	thread, thread.getState());
1645	>	try {
1646	>	threadFail(detail);
1647	>	} finally {
1648	>	// Interrupt thread __after__ having reported its stack trace
1649	>	thread.interrupt();
1650		}
1651		}
1652		}
#	Line 1164 | Line 1674 | public class JSR166TestCase extends Test
1674		}
1675		}
1676
1677	<	public abstract class RunnableShouldThrow implements Runnable {
1678	<	protected abstract void realRun() throws Throwable;
1679	<
1680	<	final Class<?> exceptionClass;
1681	<
1172	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1173	<	this.exceptionClass = exceptionClass;
1174	<	}
1175	<
1176	<	public final void run() {
1177	<	try {
1178	<	realRun();
1179	<	threadShouldThrow(exceptionClass.getSimpleName());
1180	<	} catch (Throwable t) {
1181	<	if (! exceptionClass.isInstance(t))
1182	<	threadUnexpectedException(t);
1183	<	}
1184	<	}
1677	>	Runnable checkedRunnable(Action action) {
1678	>	return new CheckedRunnable() {
1679	>	public void realRun() throws Throwable {
1680	>	action.run();
1681	>	}};
1682		}
1683
1684		public abstract class ThreadShouldThrow extends Thread {
#	Line 1196 | Line 1693 | public class JSR166TestCase extends Test
1693		public final void run() {
1694		try {
1695		realRun();
1199	–	threadShouldThrow(exceptionClass.getSimpleName());
1696		} catch (Throwable t) {
1697		if (! exceptionClass.isInstance(t))
1698		threadUnexpectedException(t);
1699	+	return;
1700		}
1701	+	threadShouldThrow(exceptionClass.getSimpleName());
1702		}
1703		}
1704
#	Line 1210 | Line 1708 | public class JSR166TestCase extends Test
1708		public final void run() {
1709		try {
1710		realRun();
1213	–	threadShouldThrow("InterruptedException");
1711		} catch (InterruptedException success) {
1712		threadAssertFalse(Thread.interrupted());
1713	+	return;
1714		} catch (Throwable fail) {
1715		threadUnexpectedException(fail);
1716		}
1717	+	threadShouldThrow("InterruptedException");
1718		}
1719		}
1720
#	Line 1227 | Line 1726 | public class JSR166TestCase extends Test
1726		return realCall();
1727		} catch (Throwable fail) {
1728		threadUnexpectedException(fail);
1230	–	return null;
1729		}
1730	<	}
1233	<	}
1234	<
1235	<	public abstract class CheckedInterruptedCallable<T>
1236	<	implements Callable<T> {
1237	<	protected abstract T realCall() throws Throwable;
1238	<
1239	<	public final T call() {
1240	<	try {
1241	<	T result = realCall();
1242	<	threadShouldThrow("InterruptedException");
1243	<	return result;
1244	<	} catch (InterruptedException success) {
1245	<	threadAssertFalse(Thread.interrupted());
1246	<	} catch (Throwable fail) {
1247	<	threadUnexpectedException(fail);
1248	<	}
1249	<	return null;
1730	>	throw new AssertionError("unreached");
1731		}
1732		}
1733
#	Line 1254 | Line 1735 | public class JSR166TestCase extends Test
1735		public void run() {}
1736		}
1737
1738	<	public static class NoOpCallable implements Callable {
1738	>	public static class NoOpCallable implements Callable<Object> {
1739		public Object call() { return Boolean.TRUE; }
1740		}
1741
#	Line 1284 | Line 1765 | public class JSR166TestCase extends Test
1765		}};
1766		}
1767
1768	<	public Runnable awaiter(final CountDownLatch latch) {
1769	<	return new CheckedRunnable() {
1770	<	public void realRun() throws InterruptedException {
1771	<	await(latch);
1772	<	}};
1768	>	class LatchAwaiter extends CheckedRunnable {
1769	>	static final int NEW = 0;
1770	>	static final int RUNNING = 1;
1771	>	static final int DONE = 2;
1772	>	final CountDownLatch latch;
1773	>	int state = NEW;
1774	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1775	>	public void realRun() throws InterruptedException {
1776	>	state = 1;
1777	>	await(latch);
1778	>	state = 2;
1779	>	}
1780		}
1781
1782	<	public void await(CountDownLatch latch) {
1782	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1783	>	return new LatchAwaiter(latch);
1784	>	}
1785	>
1786	>	public void await(CountDownLatch latch, long timeoutMillis) {
1787	>	boolean timedOut = false;
1788		try {
1789	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1789	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1790		} catch (Throwable fail) {
1791		threadUnexpectedException(fail);
1792		}
1793	+	if (timedOut)
1794	+	fail("timed out waiting for CountDownLatch for "
1795	+	+ (timeoutMillis/1000) + " sec");
1796	+	}
1797	+
1798	+	public void await(CountDownLatch latch) {
1799	+	await(latch, LONG_DELAY_MS);
1800		}
1801
1802		public void await(Semaphore semaphore) {
1803	+	boolean timedOut = false;
1804		try {
1805	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1805	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1806	>	} catch (Throwable fail) {
1807	>	threadUnexpectedException(fail);
1808	>	}
1809	>	if (timedOut)
1810	>	fail("timed out waiting for Semaphore for "
1811	>	+ (LONG_DELAY_MS/1000) + " sec");
1812	>	}
1813	>
1814	>	public void await(CyclicBarrier barrier) {
1815	>	try {
1816	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1817		} catch (Throwable fail) {
1818		threadUnexpectedException(fail);
1819		}
#	Line 1321 | Line 1833 | public class JSR166TestCase extends Test
1833		//         long startTime = System.nanoTime();
1834		//         while (!flag.get()) {
1835		//             if (millisElapsedSince(startTime) > timeoutMillis)
1836	<	//                 throw new AssertionFailedError("timed out");
1836	>	//                 throw new AssertionError("timed out");
1837		//             Thread.yield();
1838		//         }
1839		//     }
#	Line 1330 | Line 1842 | public class JSR166TestCase extends Test
1842		public String call() { throw new NullPointerException(); }
1843		}
1844
1333	–	public static class CallableOne implements Callable<Integer> {
1334	–	public Integer call() { return one; }
1335	–	}
1336	–
1337	–	public class ShortRunnable extends CheckedRunnable {
1338	–	protected void realRun() throws Throwable {
1339	–	delay(SHORT_DELAY_MS);
1340	–	}
1341	–	}
1342	–
1343	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1344	–	protected void realRun() throws InterruptedException {
1345	–	delay(SHORT_DELAY_MS);
1346	–	}
1347	–	}
1348	–
1349	–	public class SmallRunnable extends CheckedRunnable {
1350	–	protected void realRun() throws Throwable {
1351	–	delay(SMALL_DELAY_MS);
1352	–	}
1353	–	}
1354	–
1355	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1356	–	protected void realRun() {
1357	–	try {
1358	–	delay(SMALL_DELAY_MS);
1359	–	} catch (InterruptedException ok) {}
1360	–	}
1361	–	}
1362	–
1363	–	public class SmallCallable extends CheckedCallable {
1364	–	protected Object realCall() throws InterruptedException {
1365	–	delay(SMALL_DELAY_MS);
1366	–	return Boolean.TRUE;
1367	–	}
1368	–	}
1369	–
1370	–	public class MediumRunnable extends CheckedRunnable {
1371	–	protected void realRun() throws Throwable {
1372	–	delay(MEDIUM_DELAY_MS);
1373	–	}
1374	–	}
1375	–
1376	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1377	–	protected void realRun() throws InterruptedException {
1378	–	delay(MEDIUM_DELAY_MS);
1379	–	}
1380	–	}
1381	–
1845		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1846		return new CheckedRunnable() {
1847		protected void realRun() {
#	Line 1388 | Line 1851 | public class JSR166TestCase extends Test
1851		}};
1852		}
1853
1391	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1392	–	protected void realRun() {
1393	–	try {
1394	–	delay(MEDIUM_DELAY_MS);
1395	–	} catch (InterruptedException ok) {}
1396	–	}
1397	–	}
1398	–
1399	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1400	–	protected void realRun() {
1401	–	try {
1402	–	delay(LONG_DELAY_MS);
1403	–	} catch (InterruptedException ok) {}
1404	–	}
1405	–	}
1406	–
1854		/**
1855		* For use as ThreadFactory in constructors
1856		*/
#	Line 1417 | Line 1864 | public class JSR166TestCase extends Test
1864		boolean isDone();
1865		}
1866
1420	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1421	–	return new TrackedRunnable() {
1422	–	private volatile boolean done = false;
1423	–	public boolean isDone() { return done; }
1424	–	public void run() {
1425	–	try {
1426	–	delay(timeoutMillis);
1427	–	done = true;
1428	–	} catch (InterruptedException ok) {}
1429	–	}
1430	–	};
1431	–	}
1432	–
1433	–	public static class TrackedShortRunnable implements Runnable {
1434	–	public volatile boolean done = false;
1435	–	public void run() {
1436	–	try {
1437	–	delay(SHORT_DELAY_MS);
1438	–	done = true;
1439	–	} catch (InterruptedException ok) {}
1440	–	}
1441	–	}
1442	–
1443	–	public static class TrackedSmallRunnable implements Runnable {
1444	–	public volatile boolean done = false;
1445	–	public void run() {
1446	–	try {
1447	–	delay(SMALL_DELAY_MS);
1448	–	done = true;
1449	–	} catch (InterruptedException ok) {}
1450	–	}
1451	–	}
1452	–
1453	–	public static class TrackedMediumRunnable implements Runnable {
1454	–	public volatile boolean done = false;
1455	–	public void run() {
1456	–	try {
1457	–	delay(MEDIUM_DELAY_MS);
1458	–	done = true;
1459	–	} catch (InterruptedException ok) {}
1460	–	}
1461	–	}
1462	–
1463	–	public static class TrackedLongRunnable implements Runnable {
1464	–	public volatile boolean done = false;
1465	–	public void run() {
1466	–	try {
1467	–	delay(LONG_DELAY_MS);
1468	–	done = true;
1469	–	} catch (InterruptedException ok) {}
1470	–	}
1471	–	}
1472	–
1867		public static class TrackedNoOpRunnable implements Runnable {
1868		public volatile boolean done = false;
1869		public void run() {
#	Line 1477 | Line 1871 | public class JSR166TestCase extends Test
1871		}
1872		}
1873
1480	–	public static class TrackedCallable implements Callable {
1481	–	public volatile boolean done = false;
1482	–	public Object call() {
1483	–	try {
1484	–	delay(SMALL_DELAY_MS);
1485	–	done = true;
1486	–	} catch (InterruptedException ok) {}
1487	–	return Boolean.TRUE;
1488	–	}
1489	–	}
1490	–
1874		/**
1875		* Analog of CheckedRunnable for RecursiveAction
1876		*/
#	Line 1514 | Line 1897 | public class JSR166TestCase extends Test
1897		return realCompute();
1898		} catch (Throwable fail) {
1899		threadUnexpectedException(fail);
1517	–	return null;
1900		}
1901	+	throw new AssertionError("unreached");
1902		}
1903		}
1904
#	Line 1529 | Line 1912 | public class JSR166TestCase extends Test
1912
1913		/**
1914		* A CyclicBarrier that uses timed await and fails with
1915	<	* AssertionFailedErrors instead of throwing checked exceptions.
1915	>	* AssertionErrors instead of throwing checked exceptions.
1916		*/
1917	<	public class CheckedBarrier extends CyclicBarrier {
1917	>	public static class CheckedBarrier extends CyclicBarrier {
1918		public CheckedBarrier(int parties) { super(parties); }
1919
1920		public int await() {
1921		try {
1922	<	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1922	>	return super.await(LONGER_DELAY_MS, MILLISECONDS);
1923		} catch (TimeoutException timedOut) {
1924	<	throw new AssertionFailedError("timed out");
1924	>	throw new AssertionError("timed out");
1925		} catch (Exception fail) {
1926	<	AssertionFailedError afe =
1544	<	new AssertionFailedError("Unexpected exception: " + fail);
1545	<	afe.initCause(fail);
1546	<	throw afe;
1926	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1927		}
1928		}
1929		}
1930
1931	<	void checkEmpty(BlockingQueue q) {
1931	>	void checkEmpty(BlockingQueue<?> q) {
1932		try {
1933		assertTrue(q.isEmpty());
1934		assertEquals(0, q.size());
1935		assertNull(q.peek());
1936		assertNull(q.poll());
1937	<	assertNull(q.poll(0, MILLISECONDS));
1937	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1938		assertEquals(q.toString(), "[]");
1939		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1940		assertFalse(q.iterator().hasNext());
#	Line 1596 | Line 1976 | public class JSR166TestCase extends Test
1976		}
1977
1978		@SuppressWarnings("unchecked")
1979	+	void assertImmutable(Object o) {
1980	+	if (o instanceof Collection) {
1981	+	assertThrows(
1982	+	UnsupportedOperationException.class,
1983	+	() -> ((Collection) o).add(null));
1984	+	}
1985	+	}
1986	+
1987	+	@SuppressWarnings("unchecked")
1988		<T> T serialClone(T o) {
1989	+	T clone = null;
1990		try {
1991		ObjectInputStream ois = new ObjectInputStream
1992		(new ByteArrayInputStream(serialBytes(o)));
1993	<	T clone = (T) ois.readObject();
1604	<	assertSame(o.getClass(), clone.getClass());
1605	<	return clone;
1993	>	clone = (T) ois.readObject();
1994		} catch (Throwable fail) {
1995		threadUnexpectedException(fail);
1996	+	}
1997	+	if (o == clone) assertImmutable(o);
1998	+	else assertSame(o.getClass(), clone.getClass());
1999	+	return clone;
2000	+	}
2001	+
2002	+	/**
2003	+	* A version of serialClone that leaves error handling (for
2004	+	* e.g. NotSerializableException) up to the caller.
2005	+	*/
2006	+	@SuppressWarnings("unchecked")
2007	+	<T> T serialClonePossiblyFailing(T o)
2008	+	throws ReflectiveOperationException, java.io.IOException {
2009	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
2010	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
2011	+	oos.writeObject(o);
2012	+	oos.flush();
2013	+	oos.close();
2014	+	ObjectInputStream ois = new ObjectInputStream
2015	+	(new ByteArrayInputStream(bos.toByteArray()));
2016	+	T clone = (T) ois.readObject();
2017	+	if (o == clone) assertImmutable(o);
2018	+	else assertSame(o.getClass(), clone.getClass());
2019	+	return clone;
2020	+	}
2021	+
2022	+	/**
2023	+	* If o implements Cloneable and has a public clone method,
2024	+	* returns a clone of o, else null.
2025	+	*/
2026	+	@SuppressWarnings("unchecked")
2027	+	<T> T cloneableClone(T o) {
2028	+	if (!(o instanceof Cloneable)) return null;
2029	+	final T clone;
2030	+	try {
2031	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
2032	+	} catch (NoSuchMethodException ok) {
2033		return null;
2034	+	} catch (ReflectiveOperationException unexpected) {
2035	+	throw new Error(unexpected);
2036		}
2037	+	assertNotSame(o, clone); // not 100% guaranteed by spec
2038	+	assertSame(o.getClass(), clone.getClass());
2039	+	return clone;
2040		}
2041
2042		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
2043	<	Runnable... throwingActions) {
2044	<	for (Runnable throwingAction : throwingActions) {
2043	>	Action... throwingActions) {
2044	>	for (Action throwingAction : throwingActions) {
2045		boolean threw = false;
2046		try { throwingAction.run(); }
2047		catch (Throwable t) {
2048		threw = true;
2049	<	if (!expectedExceptionClass.isInstance(t)) {
2050	<	AssertionFailedError afe =
2051	<	new AssertionFailedError
2052	<	("Expected " + expectedExceptionClass.getName() +
2053	<	", got " + t.getClass().getName());
1624	<	afe.initCause(t);
1625	<	threadUnexpectedException(afe);
1626	<	}
2049	>	if (!expectedExceptionClass.isInstance(t))
2050	>	throw new AssertionError(
2051	>	"Expected " + expectedExceptionClass.getName() +
2052	>	", got " + t.getClass().getName(),
2053	>	t);
2054		}
2055		if (!threw)
2056		shouldThrow(expectedExceptionClass.getName());
#	Line 1637 | Line 2064 | public class JSR166TestCase extends Test
2064		} catch (NoSuchElementException success) {}
2065		assertFalse(it.hasNext());
2066		}
2067	+
2068	+	public <T> Callable<T> callableThrowing(final Exception ex) {
2069	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
2070	+	}
2071	+
2072	+	public Runnable runnableThrowing(final RuntimeException ex) {
2073	+	return new Runnable() { public void run() { throw ex; }};
2074	+	}
2075	+
2076	+	/** A reusable thread pool to be shared by tests. */
2077	+	static final ExecutorService cachedThreadPool =
2078	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
2079	+	1000L, MILLISECONDS,
2080	+	new SynchronousQueue<Runnable>());
2081	+
2082	+	static <T> void shuffle(T[] array) {
2083	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
2084	+	}
2085	+
2086	+	/**
2087	+	* Returns the same String as would be returned by {@link
2088	+	* Object#toString}, whether or not the given object's class
2089	+	* overrides toString().
2090	+	*
2091	+	* @see System#identityHashCode
2092	+	*/
2093	+	static String identityString(Object x) {
2094	+	return x.getClass().getName()
2095	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
2096	+	}
2097	+
2098	+	// --- Shared assertions for Executor tests ---
2099	+
2100	+	/**
2101	+	* Returns maximum number of tasks that can be submitted to given
2102	+	* pool (with bounded queue) before saturation (when submission
2103	+	* throws RejectedExecutionException).
2104	+	*/
2105	+	static final int saturatedSize(ThreadPoolExecutor pool) {
2106	+	BlockingQueue<Runnable> q = pool.getQueue();
2107	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
2108	+	}
2109	+
2110	+	@SuppressWarnings("FutureReturnValueIgnored")
2111	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
2112	+	try {
2113	+	e.execute((Runnable) null);
2114	+	shouldThrow();
2115	+	} catch (NullPointerException success) {}
2116	+
2117	+	if (! (e instanceof ExecutorService)) return;
2118	+	ExecutorService es = (ExecutorService) e;
2119	+	try {
2120	+	es.submit((Runnable) null);
2121	+	shouldThrow();
2122	+	} catch (NullPointerException success) {}
2123	+	try {
2124	+	es.submit((Runnable) null, Boolean.TRUE);
2125	+	shouldThrow();
2126	+	} catch (NullPointerException success) {}
2127	+	try {
2128	+	es.submit((Callable<?>) null);
2129	+	shouldThrow();
2130	+	} catch (NullPointerException success) {}
2131	+
2132	+	if (! (e instanceof ScheduledExecutorService)) return;
2133	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
2134	+	try {
2135	+	ses.schedule((Runnable) null,
2136	+	randomTimeout(), randomTimeUnit());
2137	+	shouldThrow();
2138	+	} catch (NullPointerException success) {}
2139	+	try {
2140	+	ses.schedule((Callable<?>) null,
2141	+	randomTimeout(), randomTimeUnit());
2142	+	shouldThrow();
2143	+	} catch (NullPointerException success) {}
2144	+	try {
2145	+	ses.scheduleAtFixedRate((Runnable) null,
2146	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2147	+	shouldThrow();
2148	+	} catch (NullPointerException success) {}
2149	+	try {
2150	+	ses.scheduleWithFixedDelay((Runnable) null,
2151	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2152	+	shouldThrow();
2153	+	} catch (NullPointerException success) {}
2154	+	}
2155	+
2156	+	void setRejectedExecutionHandler(
2157	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
2158	+	p.setRejectedExecutionHandler(handler);
2159	+	assertSame(handler, p.getRejectedExecutionHandler());
2160	+	}
2161	+
2162	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
2163	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
2164	+	final long savedTaskCount = p.getTaskCount();
2165	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
2166	+	final int savedQueueSize = p.getQueue().size();
2167	+	final boolean stock = (p.getClass().getClassLoader() == null);
2168	+
2169	+	Runnable r = () -> {};
2170	+	Callable<Boolean> c = () -> Boolean.TRUE;
2171	+
2172	+	class Recorder implements RejectedExecutionHandler {
2173	+	public volatile Runnable r = null;
2174	+	public volatile ThreadPoolExecutor p = null;
2175	+	public void reset() { r = null; p = null; }
2176	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2177	+	assertNull(this.r);
2178	+	assertNull(this.p);
2179	+	this.r = r;
2180	+	this.p = p;
2181	+	}
2182	+	}
2183	+
2184	+	// check custom handler is invoked exactly once per task
2185	+	Recorder recorder = new Recorder();
2186	+	setRejectedExecutionHandler(p, recorder);
2187	+	for (int i = 2; i--> 0; ) {
2188	+	recorder.reset();
2189	+	p.execute(r);
2190	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2191	+	assertSame(r, recorder.r);
2192	+	assertSame(p, recorder.p);
2193	+
2194	+	recorder.reset();
2195	+	assertFalse(p.submit(r).isDone());
2196	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2197	+	assertSame(p, recorder.p);
2198	+
2199	+	recorder.reset();
2200	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2201	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2202	+	assertSame(p, recorder.p);
2203	+
2204	+	recorder.reset();
2205	+	assertFalse(p.submit(c).isDone());
2206	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2207	+	assertSame(p, recorder.p);
2208	+
2209	+	if (p instanceof ScheduledExecutorService) {
2210	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2211	+	ScheduledFuture<?> future;
2212	+
2213	+	recorder.reset();
2214	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2215	+	assertFalse(future.isDone());
2216	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2217	+	assertSame(p, recorder.p);
2218	+
2219	+	recorder.reset();
2220	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2221	+	assertFalse(future.isDone());
2222	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2223	+	assertSame(p, recorder.p);
2224	+
2225	+	recorder.reset();
2226	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2227	+	assertFalse(future.isDone());
2228	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2229	+	assertSame(p, recorder.p);
2230	+
2231	+	recorder.reset();
2232	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2233	+	assertFalse(future.isDone());
2234	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2235	+	assertSame(p, recorder.p);
2236	+	}
2237	+	}
2238	+
2239	+	// Checking our custom handler above should be sufficient, but
2240	+	// we add some integration tests of standard handlers.
2241	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2242	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2243	+
2244	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2245	+	try {
2246	+	p.execute(setThread);
2247	+	shouldThrow();
2248	+	} catch (RejectedExecutionException success) {}
2249	+	assertNull(thread.get());
2250	+
2251	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2252	+	p.execute(setThread);
2253	+	assertNull(thread.get());
2254	+
2255	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2256	+	p.execute(setThread);
2257	+	if (p.isShutdown())
2258	+	assertNull(thread.get());
2259	+	else
2260	+	assertSame(Thread.currentThread(), thread.get());
2261	+
2262	+	setRejectedExecutionHandler(p, savedHandler);
2263	+
2264	+	// check that pool was not perturbed by handlers
2265	+	assertEquals(savedTaskCount, p.getTaskCount());
2266	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2267	+	assertEquals(savedQueueSize, p.getQueue().size());
2268	+	}
2269	+
2270	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2271	+	assertEquals(x, y);
2272	+	assertEquals(y, x);
2273	+	assertEquals(x.isEmpty(), y.isEmpty());
2274	+	assertEquals(x.size(), y.size());
2275	+	if (x instanceof List) {
2276	+	assertEquals(x.toString(), y.toString());
2277	+	}
2278	+	if (x instanceof List || x instanceof Set) {
2279	+	assertEquals(x.hashCode(), y.hashCode());
2280	+	}
2281	+	if (x instanceof List || x instanceof Deque) {
2282	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2283	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2284	+	y.toArray(new Object[0])));
2285	+	}
2286	+	}
2287	+
2288	+	/**
2289	+	* A weaker form of assertCollectionsEquals which does not insist
2290	+	* that the two collections satisfy Object#equals(Object), since
2291	+	* they may use identity semantics as Deques do.
2292	+	*/
2293	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2294	+	if (x instanceof List || x instanceof Set)
2295	+	assertCollectionsEquals(x, y);
2296	+	else {
2297	+	assertEquals(x.isEmpty(), y.isEmpty());
2298	+	assertEquals(x.size(), y.size());
2299	+	assertEquals(new HashSet<Object>(x), new HashSet<Object>(y));
2300	+	if (x instanceof Deque) {
2301	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2302	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2303	+	y.toArray(new Object[0])));
2304	+	}
2305	+	}
2306	+	}
2307		}

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