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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.139 by jsr166, Sun Sep 6 21:14:12 2015 UTC vs.
Revision 1.250 by jsr166, Sat Nov 24 21:48:19 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.Deque;
70		import java.util.Enumeration;
71	+	import java.util.HashSet;
72		import java.util.Iterator;
73		import java.util.List;
74		import java.util.NoSuchElementException;
75		import java.util.PropertyPermission;
76	+	import java.util.Set;
77		import java.util.concurrent.BlockingQueue;
78		import java.util.concurrent.Callable;
79		import java.util.concurrent.CountDownLatch;
80		import java.util.concurrent.CyclicBarrier;
81		import java.util.concurrent.ExecutionException;
82	+	import java.util.concurrent.Executor;
83		import java.util.concurrent.Executors;
84		import java.util.concurrent.ExecutorService;
85	+	import java.util.concurrent.ForkJoinPool;
86		import java.util.concurrent.Future;
87	+	import java.util.concurrent.FutureTask;
88		import java.util.concurrent.RecursiveAction;
89		import java.util.concurrent.RecursiveTask;
90	+	import java.util.concurrent.RejectedExecutionException;
91		import java.util.concurrent.RejectedExecutionHandler;
92		import java.util.concurrent.Semaphore;
93	+	import java.util.concurrent.ScheduledExecutorService;
94	+	import java.util.concurrent.ScheduledFuture;
95	+	import java.util.concurrent.SynchronousQueue;
96		import java.util.concurrent.ThreadFactory;
97	+	import java.util.concurrent.ThreadLocalRandom;
98		import java.util.concurrent.ThreadPoolExecutor;
99	+	import java.util.concurrent.TimeUnit;
100		import java.util.concurrent.TimeoutException;
101	+	import java.util.concurrent.atomic.AtomicBoolean;
102		import java.util.concurrent.atomic.AtomicReference;
103		import java.util.regex.Pattern;
104
54	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107		import junit.framework.TestResult;
#	Line 67 | Line 117 | import junit.framework.TestSuite;
117		*
118		* <ol>
119		*
120	<	* <li> All assertions in code running in generated threads must use
121	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
122	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
123	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
124	<	* particularly recommended) for other code to use these forms too.
125	<	* Only the most typically used JUnit assertion methods are defined
126	<	* this way, but enough to live with.</li>
120	>	* <li>All code not running in the main test thread (manually spawned threads
121	>	* or the common fork join pool) must be checked for failure (and completion!).
122	>	* Mechanisms that can be used to ensure this are:
123	>	*   <ol>
124	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
125	>	*    that the task completed normally, which is checked before returning from
126	>	*    the test method in the main thread.
127	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
128	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
129	>	*    Only the most typically used JUnit assertion methods are defined
130	>	*    this way, but enough to live with.
131	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
132	>	*    or {@link #threadRecordFailure}.
133	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
134	>	*   </ol>
135		*
136	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
136	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
137		* to invoke {@code super.setUp} and {@code super.tearDown} within
138		* them. These methods are used to clear and check for thread
139	<	* assertion failures.</li>
139	>	* assertion failures.
140		*
141		* <li>All delays and timeouts must use one of the constants {@code
142		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 89 | Line 147 | import junit.framework.TestSuite;
147		* is always discriminable as larger than SHORT and smaller than
148		* MEDIUM.  And so on. These constants are set to conservative values,
149		* but even so, if there is ever any doubt, they can all be increased
150	<	* in one spot to rerun tests on slower platforms.</li>
150	>	* in one spot to rerun tests on slower platforms.
151		*
152	<	* <li> All threads generated must be joined inside each test case
152	>	* <li>All threads generated must be joined inside each test case
153		* method (or {@code fail} to do so) before returning from the
154		* method. The {@code joinPool} method can be used to do this when
155	<	* using Executors.</li>
155	>	* using Executors.
156		*
157		* </ol>
158		*
159		* <p><b>Other notes</b>
160		* <ul>
161		*
162	<	* <li> Usually, there is one testcase method per JSR166 method
162	>	* <li>Usually, there is one testcase method per JSR166 method
163		* covering "normal" operation, and then as many exception-testing
164		* methods as there are exceptions the method can throw. Sometimes
165		* there are multiple tests per JSR166 method when the different
166		* "normal" behaviors differ significantly. And sometimes testcases
167	<	* cover multiple methods when they cannot be tested in
110	<	* isolation.</li>
167	>	* cover multiple methods when they cannot be tested in isolation.
168		*
169	<	* <li> The documentation style for testcases is to provide as javadoc
169	>	* <li>The documentation style for testcases is to provide as javadoc
170		* a simple sentence or two describing the property that the testcase
171		* method purports to test. The javadocs do not say anything about how
172	<	* the property is tested. To find out, read the code.</li>
172	>	* the property is tested. To find out, read the code.
173		*
174	<	* <li> These tests are "conformance tests", and do not attempt to
174	>	* <li>These tests are "conformance tests", and do not attempt to
175		* test throughput, latency, scalability or other performance factors
176		* (see the separate "jtreg" tests for a set intended to check these
177		* for the most central aspects of functionality.) So, most tests use
178		* the smallest sensible numbers of threads, collection sizes, etc
179	<	* needed to check basic conformance.</li>
179	>	* needed to check basic conformance.
180		*
181		* <li>The test classes currently do not declare inclusion in
182		* any particular package to simplify things for people integrating
183	<	* them in TCK test suites.</li>
183	>	* them in TCK test suites.
184		*
185	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
186	<	* runs all JSR166 unit tests.</li>
185	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
186	>	* runs all JSR166 unit tests.
187		*
188		* </ul>
189		*/
#	Line 170 | Line 227 | public class JSR166TestCase extends Test
227		private static final int suiteRuns =
228		Integer.getInteger("jsr166.suiteRuns", 1);
229
230	+	/**
231	+	* Returns the value of the system property, or NaN if not defined.
232	+	*/
233	+	private static float systemPropertyValue(String name) {
234	+	String floatString = System.getProperty(name);
235	+	if (floatString == null)
236	+	return Float.NaN;
237	+	try {
238	+	return Float.parseFloat(floatString);
239	+	} catch (NumberFormatException ex) {
240	+	throw new IllegalArgumentException(
241	+	String.format("Bad float value in system property %s=%s",
242	+	name, floatString));
243	+	}
244	+	}
245	+
246	+	/**
247	+	* The scaling factor to apply to standard delays used in tests.
248	+	* May be initialized from any of:
249	+	* - the "jsr166.delay.factor" system property
250	+	* - the "test.timeout.factor" system property (as used by jtreg)
251	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
252	+	* - hard-coded fuzz factor when using a known slowpoke VM
253	+	*/
254	+	private static final float delayFactor = delayFactor();
255	+
256	+	private static float delayFactor() {
257	+	float x;
258	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
259	+	return x;
260	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
261	+	return x;
262	+	String prop = System.getProperty("java.vm.version");
263	+	if (prop != null && prop.matches(".*debug.*"))
264	+	return 4.0f; // How much slower is fastdebug than product?!
265	+	return 1.0f;
266	+	}
267	+
268		public JSR166TestCase() { super(); }
269		public JSR166TestCase(String name) { super(name); }
270
#	Line 185 | Line 280 | public class JSR166TestCase extends Test
280		return (regex == null) ? null : Pattern.compile(regex);
281		}
282
283	<	protected void runTest() throws Throwable {
283	>	// Instrumentation to debug very rare, but very annoying hung test runs.
284	>	static volatile TestCase currentTestCase;
285	>	// static volatile int currentRun = 0;
286	>	static {
287	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
288	>	// Avoid spurious reports with enormous runsPerTest.
289	>	// A single test case run should never take more than 1 second.
290	>	// But let's cap it at the high end too ...
291	>	final int timeoutMinutes =
292	>	Math.min(15, Math.max(runsPerTest / 60, 1));
293	>	for (TestCase lastTestCase = currentTestCase;;) {
294	>	try { MINUTES.sleep(timeoutMinutes); }
295	>	catch (InterruptedException unexpected) { break; }
296	>	if (lastTestCase == currentTestCase) {
297	>	System.err.printf(
298	>	"Looks like we're stuck running test: %s%n",
299	>	lastTestCase);
300	>	//                     System.err.printf(
301	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
302	>	//                         lastTestCase, currentRun, runsPerTest);
303	>	//                     System.err.println("availableProcessors=" +
304	>	//                         Runtime.getRuntime().availableProcessors());
305	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
306	>	dumpTestThreads();
307	>	// one stack dump is probably enough; more would be spam
308	>	break;
309	>	}
310	>	lastTestCase = currentTestCase;
311	>	}}};
312	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
313	>	thread.setDaemon(true);
314	>	thread.start();
315	>	}
316	>
317	>	//     public static String cpuModel() {
318	>	//         try {
319	>	//             java.util.regex.Matcher matcher
320	>	//               = Pattern.compile("model name\\s*: (.*)")
321	>	//                 .matcher(new String(
322	>	//                     java.nio.file.Files.readAllBytes(
323	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
324	>	//             matcher.find();
325	>	//             return matcher.group(1);
326	>	//         } catch (Exception ex) { return null; }
327	>	//     }
328	>
329	>	public void runBare() throws Throwable {
330	>	currentTestCase = this;
331		if (methodFilter == null
332	<	|| methodFilter.matcher(toString()).find()) {
333	<	for (int i = 0; i < runsPerTest; i++) {
334	<	if (profileTests)
335	<	runTestProfiled();
336	<	else
337	<	super.runTest();
338	<	}
332	>	|| methodFilter.matcher(toString()).find())
333	>	super.runBare();
334	>	}
335	>
336	>	protected void runTest() throws Throwable {
337	>	for (int i = 0; i < runsPerTest; i++) {
338	>	// currentRun = i;
339	>	if (profileTests)
340	>	runTestProfiled();
341	>	else
342	>	super.runTest();
343		}
344		}
345
346		protected void runTestProfiled() throws Throwable {
347	<	// Warmup run, notably to trigger all needed classloading.
348	<	super.runTest();
203	<	long t0 = System.nanoTime();
204	<	try {
347	>	for (int i = 0; i < 2; i++) {
348	>	long startTime = System.nanoTime();
349		super.runTest();
350	<	} finally {
351	<	long elapsedMillis = millisElapsedSince(t0);
352	<	if (elapsedMillis >= profileThreshold)
350	>	long elapsedMillis = millisElapsedSince(startTime);
351	>	if (elapsedMillis < profileThreshold)
352	>	break;
353	>	// Never report first run of any test; treat it as a
354	>	// warmup run, notably to trigger all needed classloading,
355	>	if (i > 0)
356		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
357		}
358		}
#	Line 217 | Line 364 | public class JSR166TestCase extends Test
364		main(suite(), args);
365		}
366
367	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
368	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
369	+	long runTime;
370	+	public void startTest(Test test) {}
371	+	protected void printHeader(long runTime) {
372	+	this.runTime = runTime; // defer printing for later
373	+	}
374	+	protected void printFooter(TestResult result) {
375	+	if (result.wasSuccessful()) {
376	+	getWriter().println("OK (" + result.runCount() + " tests)"
377	+	+ "  Time: " + elapsedTimeAsString(runTime));
378	+	} else {
379	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
380	+	super.printFooter(result);
381	+	}
382	+	}
383	+	}
384	+
385	+	/**
386	+	* Returns a TestRunner that doesn't bother with unnecessary
387	+	* fluff, like printing a "." for each test case.
388	+	*/
389	+	static junit.textui.TestRunner newPithyTestRunner() {
390	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
391	+	runner.setPrinter(new PithyResultPrinter(System.out));
392	+	return runner;
393	+	}
394	+
395		/**
396		* Runs all unit tests in the given test suite.
397		* Actual behavior influenced by jsr166.* system properties.
#	Line 228 | Line 403 | public class JSR166TestCase extends Test
403		System.setSecurityManager(new SecurityManager());
404		}
405		for (int i = 0; i < suiteRuns; i++) {
406	<	TestResult result = junit.textui.TestRunner.run(suite);
406	>	TestResult result = newPithyTestRunner().doRun(suite);
407		if (!result.wasSuccessful())
408		System.exit(1);
409		System.gc();
#	Line 254 | Line 429 | public class JSR166TestCase extends Test
429		for (String testClassName : testClassNames) {
430		try {
431		Class<?> testClass = Class.forName(testClassName);
432	<	Method m = testClass.getDeclaredMethod("suite",
258	<	new Class<?>[0]);
432	>	Method m = testClass.getDeclaredMethod("suite");
433		suite.addTest(newTestSuite((Test)m.invoke(null)));
434	<	} catch (Exception e) {
435	<	throw new Error("Missing test class", e);
434	>	} catch (ReflectiveOperationException e) {
435	>	throw new AssertionError("Missing test class", e);
436		}
437		}
438		}
#	Line 280 | Line 454 | public class JSR166TestCase extends Test
454		}
455		}
456
457	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
458	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
459	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
460	<	public static boolean atLeastJava9() {
461	<	return JAVA_CLASS_VERSION >= 53.0
462	<	// As of 2015-09, java9 still uses 52.0 class file version
289	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
290	<	}
291	<	public static boolean atLeastJava10() {
292	<	return JAVA_CLASS_VERSION >= 54.0
293	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
294	<	}
457	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
458	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
459	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
460	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
461	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
462	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
463
464		/**
465		* Collects all JSR166 unit tests as one suite.
#	Line 312 | Line 480 | public class JSR166TestCase extends Test
480		AbstractQueuedLongSynchronizerTest.suite(),
481		ArrayBlockingQueueTest.suite(),
482		ArrayDequeTest.suite(),
483	+	ArrayListTest.suite(),
484		AtomicBooleanTest.suite(),
485		AtomicIntegerArrayTest.suite(),
486		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 334 | Line 503 | public class JSR166TestCase extends Test
503		CopyOnWriteArrayListTest.suite(),
504		CopyOnWriteArraySetTest.suite(),
505		CountDownLatchTest.suite(),
506	+	CountedCompleterTest.suite(),
507		CyclicBarrierTest.suite(),
508		DelayQueueTest.suite(),
509		EntryTest.suite(),
#	Line 362 | Line 532 | public class JSR166TestCase extends Test
532		TreeMapTest.suite(),
533		TreeSetTest.suite(),
534		TreeSubMapTest.suite(),
535	<	TreeSubSetTest.suite());
535	>	TreeSubSetTest.suite(),
536	>	VectorTest.suite());
537
538		// Java8+ test classes
539		if (atLeastJava8()) {
540		String[] java8TestClassNames = {
541	+	"ArrayDeque8Test",
542		"Atomic8Test",
543		"CompletableFutureTest",
544		"ConcurrentHashMap8Test",
545	<	"CountedCompleterTest",
545	>	"CountedCompleter8Test",
546		"DoubleAccumulatorTest",
547		"DoubleAdderTest",
548		"ForkJoinPool8Test",
549		"ForkJoinTask8Test",
550	+	"HashMapTest",
551	+	"LinkedBlockingDeque8Test",
552	+	"LinkedBlockingQueue8Test",
553		"LongAccumulatorTest",
554		"LongAdderTest",
555		"SplittableRandomTest",
556		"StampedLockTest",
557	+	"SubmissionPublisherTest",
558		"ThreadLocalRandom8Test",
559	+	"TimeUnit8Test",
560		};
561		addNamedTestClasses(suite, java8TestClassNames);
562		}
#	Line 387 | Line 564 | public class JSR166TestCase extends Test
564		// Java9+ test classes
565		if (atLeastJava9()) {
566		String[] java9TestClassNames = {
567	<	// Currently empty
567	>	"AtomicBoolean9Test",
568	>	"AtomicInteger9Test",
569	>	"AtomicIntegerArray9Test",
570	>	"AtomicLong9Test",
571	>	"AtomicLongArray9Test",
572	>	"AtomicReference9Test",
573	>	"AtomicReferenceArray9Test",
574	>	"ExecutorCompletionService9Test",
575	>	"ForkJoinPool9Test",
576		};
577		addNamedTestClasses(suite, java9TestClassNames);
578		}
#	Line 398 | Line 583 | public class JSR166TestCase extends Test
583		/** Returns list of junit-style test method names in given class. */
584		public static ArrayList<String> testMethodNames(Class<?> testClass) {
585		Method[] methods = testClass.getDeclaredMethods();
586	<	ArrayList<String> names = new ArrayList<String>(methods.length);
586	>	ArrayList<String> names = new ArrayList<>(methods.length);
587		for (Method method : methods) {
588		if (method.getName().startsWith("test")
589		&& Modifier.isPublic(method.getModifiers())
#	Line 425 | Line 610 | public class JSR166TestCase extends Test
610		for (String methodName : testMethodNames(testClass))
611		suite.addTest((Test) c.newInstance(data, methodName));
612		return suite;
613	<	} catch (Exception e) {
614	<	throw new Error(e);
613	>	} catch (ReflectiveOperationException e) {
614	>	throw new AssertionError(e);
615		}
616		}
617
#	Line 442 | Line 627 | public class JSR166TestCase extends Test
627		if (atLeastJava8()) {
628		String name = testClass.getName();
629		String name8 = name.replaceAll("Test$", "8Test");
630	<	if (name.equals(name8)) throw new Error(name);
630	>	if (name.equals(name8)) throw new AssertionError(name);
631		try {
632		return (Test)
633		Class.forName(name8)
634	<	.getMethod("testSuite", new Class[] { dataClass })
634	>	.getMethod("testSuite", dataClass)
635		.invoke(null, data);
636	<	} catch (Exception e) {
637	<	throw new Error(e);
636	>	} catch (ReflectiveOperationException e) {
637	>	throw new AssertionError(e);
638		}
639		} else {
640		return new TestSuite();
641		}
457	–
642		}
643
644		// Delays for timing-dependent tests, in milliseconds.
#	Line 464 | Line 648 | public class JSR166TestCase extends Test
648		public static long MEDIUM_DELAY_MS;
649		public static long LONG_DELAY_MS;
650
651	+	private static final long RANDOM_TIMEOUT;
652	+	private static final long RANDOM_EXPIRED_TIMEOUT;
653	+	private static final TimeUnit RANDOM_TIMEUNIT;
654	+	static {
655	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
656	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
657	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
658	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
659	+	TimeUnit[] timeUnits = TimeUnit.values();
660	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
661	+	}
662	+
663	+	/**
664	+	* Returns a timeout for use when any value at all will do.
665	+	*/
666	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
667	+
668		/**
669	<	* Returns the shortest timed delay. This could
670	<	* be reimplemented to use for example a Property.
669	>	* Returns a timeout that means "no waiting", i.e. not positive.
670	>	*/
671	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
672	>
673	>	/**
674	>	* Returns a random non-null TimeUnit.
675	>	*/
676	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
677	>
678	>	/**
679	>	* Returns the shortest timed delay. This can be scaled up for
680	>	* slow machines using the jsr166.delay.factor system property,
681	>	* or via jtreg's -timeoutFactor: flag.
682	>	* http://openjdk.java.net/jtreg/command-help.html
683		*/
684		protected long getShortDelay() {
685	<	return 50;
685	>	return (long) (50 * delayFactor);
686		}
687
688		/**
#	Line 482 | Line 695 | public class JSR166TestCase extends Test
695		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
696		}
697
698	+	private static final long TIMEOUT_DELAY_MS
699	+	= (long) (12.0 * Math.cbrt(delayFactor));
700	+
701		/**
702	<	* Returns a timeout in milliseconds to be used in tests that
703	<	* verify that operations block or time out.
702	>	* Returns a timeout in milliseconds to be used in tests that verify
703	>	* that operations block or time out.  We want this to be longer
704	>	* than the OS scheduling quantum, but not too long, so don't scale
705	>	* linearly with delayFactor; we use "crazy" cube root instead.
706		*/
707	<	long timeoutMillis() {
708	<	return SHORT_DELAY_MS / 4;
707	>	static long timeoutMillis() {
708	>	return TIMEOUT_DELAY_MS;
709		}
710
711		/**
#	Line 503 | Line 721 | public class JSR166TestCase extends Test
721		* The first exception encountered if any threadAssertXXX method fails.
722		*/
723		private final AtomicReference<Throwable> threadFailure
724	<	= new AtomicReference<Throwable>(null);
724	>	= new AtomicReference<>(null);
725
726		/**
727		* Records an exception so that it can be rethrown later in the test
#	Line 512 | Line 730 | public class JSR166TestCase extends Test
730		* the same test have no effect.
731		*/
732		public void threadRecordFailure(Throwable t) {
733	+	System.err.println(t);
734	+	dumpTestThreads();
735		threadFailure.compareAndSet(null, t);
736		}
737
#	Line 519 | Line 739 | public class JSR166TestCase extends Test
739		setDelays();
740		}
741
742	+	void tearDownFail(String format, Object... args) {
743	+	String msg = toString() + ": " + String.format(format, args);
744	+	System.err.println(msg);
745	+	dumpTestThreads();
746	+	throw new AssertionError(msg);
747	+	}
748	+
749		/**
750		* Extra checks that get done for all test cases.
751		*
#	Line 537 | Line 764 | public class JSR166TestCase extends Test
764		throw (RuntimeException) t;
765		else if (t instanceof Exception)
766		throw (Exception) t;
767	<	else {
768	<	AssertionFailedError afe =
542	<	new AssertionFailedError(t.toString());
543	<	afe.initCause(t);
544	<	throw afe;
545	<	}
767	>	else
768	>	throw new AssertionError(t.toString(), t);
769		}
770
771		if (Thread.interrupted())
772	<	throw new AssertionFailedError("interrupt status set in main thread");
772	>	tearDownFail("interrupt status set in main thread");
773
774		checkForkJoinPoolThreadLeaks();
775		}
776
777		/**
778	<	* Finds missing try { ... } finally { joinPool(e); }
778	>	* Finds missing PoolCleaners
779		*/
780		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
781	<	Thread[] survivors = new Thread[5];
781	>	Thread[] survivors = new Thread[7];
782		int count = Thread.enumerate(survivors);
783		for (int i = 0; i < count; i++) {
784		Thread thread = survivors[i];
#	Line 563 | Line 786 | public class JSR166TestCase extends Test
786		if (name.startsWith("ForkJoinPool-")) {
787		// give thread some time to terminate
788		thread.join(LONG_DELAY_MS);
789	<	if (!thread.isAlive()) continue;
790	<	throw new AssertionFailedError
791	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
569	<	toString(), name));
789	>	if (thread.isAlive())
790	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
791	>	thread);
792		}
793		}
794	+
795	+	if (!ForkJoinPool.commonPool()
796	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
797	+	tearDownFail("ForkJoin common pool thread stuck");
798		}
799
800		/**
801		* Just like fail(reason), but additionally recording (using
802	<	* threadRecordFailure) any AssertionFailedError thrown, so that
803	<	* the current testcase will fail.
802	>	* threadRecordFailure) any AssertionError thrown, so that the
803	>	* current testcase will fail.
804		*/
805		public void threadFail(String reason) {
806		try {
807		fail(reason);
808	<	} catch (AssertionFailedError t) {
809	<	threadRecordFailure(t);
810	<	fail(reason);
808	>	} catch (AssertionError fail) {
809	>	threadRecordFailure(fail);
810	>	throw fail;
811		}
812		}
813
814		/**
815		* Just like assertTrue(b), but additionally recording (using
816	<	* threadRecordFailure) any AssertionFailedError thrown, so that
817	<	* the current testcase will fail.
816	>	* threadRecordFailure) any AssertionError thrown, so that the
817	>	* current testcase will fail.
818		*/
819		public void threadAssertTrue(boolean b) {
820		try {
821		assertTrue(b);
822	<	} catch (AssertionFailedError t) {
823	<	threadRecordFailure(t);
824	<	throw t;
822	>	} catch (AssertionError fail) {
823	>	threadRecordFailure(fail);
824	>	throw fail;
825		}
826		}
827
828		/**
829		* Just like assertFalse(b), but additionally recording (using
830	<	* threadRecordFailure) any AssertionFailedError thrown, so that
831	<	* the current testcase will fail.
830	>	* threadRecordFailure) any AssertionError thrown, so that the
831	>	* current testcase will fail.
832		*/
833		public void threadAssertFalse(boolean b) {
834		try {
835		assertFalse(b);
836	<	} catch (AssertionFailedError t) {
837	<	threadRecordFailure(t);
838	<	throw t;
836	>	} catch (AssertionError fail) {
837	>	threadRecordFailure(fail);
838	>	throw fail;
839		}
840		}
841
842		/**
843		* Just like assertNull(x), but additionally recording (using
844	<	* threadRecordFailure) any AssertionFailedError thrown, so that
845	<	* the current testcase will fail.
844	>	* threadRecordFailure) any AssertionError thrown, so that the
845	>	* current testcase will fail.
846		*/
847		public void threadAssertNull(Object x) {
848		try {
849		assertNull(x);
850	<	} catch (AssertionFailedError t) {
851	<	threadRecordFailure(t);
852	<	throw t;
850	>	} catch (AssertionError fail) {
851	>	threadRecordFailure(fail);
852	>	throw fail;
853		}
854		}
855
856		/**
857		* Just like assertEquals(x, y), but additionally recording (using
858	<	* threadRecordFailure) any AssertionFailedError thrown, so that
859	<	* the current testcase will fail.
858	>	* threadRecordFailure) any AssertionError thrown, so that the
859	>	* current testcase will fail.
860		*/
861		public void threadAssertEquals(long x, long y) {
862		try {
863		assertEquals(x, y);
864	<	} catch (AssertionFailedError t) {
865	<	threadRecordFailure(t);
866	<	throw t;
864	>	} catch (AssertionError fail) {
865	>	threadRecordFailure(fail);
866	>	throw fail;
867		}
868		}
869
870		/**
871		* Just like assertEquals(x, y), but additionally recording (using
872	<	* threadRecordFailure) any AssertionFailedError thrown, so that
873	<	* the current testcase will fail.
872	>	* threadRecordFailure) any AssertionError thrown, so that the
873	>	* current testcase will fail.
874		*/
875		public void threadAssertEquals(Object x, Object y) {
876		try {
877		assertEquals(x, y);
878	<	} catch (AssertionFailedError fail) {
878	>	} catch (AssertionError fail) {
879		threadRecordFailure(fail);
880		throw fail;
881		} catch (Throwable fail) {
#	Line 659 | Line 885 | public class JSR166TestCase extends Test
885
886		/**
887		* Just like assertSame(x, y), but additionally recording (using
888	<	* threadRecordFailure) any AssertionFailedError thrown, so that
889	<	* the current testcase will fail.
888	>	* threadRecordFailure) any AssertionError thrown, so that the
889	>	* current testcase will fail.
890		*/
891		public void threadAssertSame(Object x, Object y) {
892		try {
893		assertSame(x, y);
894	<	} catch (AssertionFailedError fail) {
894	>	} catch (AssertionError fail) {
895		threadRecordFailure(fail);
896		throw fail;
897		}
#	Line 687 | Line 913 | public class JSR166TestCase extends Test
913
914		/**
915		* Records the given exception using {@link #threadRecordFailure},
916	<	* then rethrows the exception, wrapping it in an
917	<	* AssertionFailedError if necessary.
916	>	* then rethrows the exception, wrapping it in an AssertionError
917	>	* if necessary.
918		*/
919		public void threadUnexpectedException(Throwable t) {
920		threadRecordFailure(t);
#	Line 697 | Line 923 | public class JSR166TestCase extends Test
923		throw (RuntimeException) t;
924		else if (t instanceof Error)
925		throw (Error) t;
926	<	else {
927	<	AssertionFailedError afe =
702	<	new AssertionFailedError("unexpected exception: " + t);
703	<	afe.initCause(t);
704	<	throw afe;
705	<	}
926	>	else
927	>	throw new AssertionError("unexpected exception: " + t, t);
928		}
929
930		/**
931		* Delays, via Thread.sleep, for the given millisecond delay, but
932		* if the sleep is shorter than specified, may re-sleep or yield
933	<	* until time elapses.
933	>	* until time elapses.  Ensures that the given time, as measured
934	>	* by System.nanoTime(), has elapsed.
935		*/
936		static void delay(long millis) throws InterruptedException {
937	<	long startTime = System.nanoTime();
938	<	long ns = millis * 1000 * 1000;
939	<	for (;;) {
937	>	long nanos = millis * (1000 * 1000);
938	>	final long wakeupTime = System.nanoTime() + nanos;
939	>	do {
940		if (millis > 0L)
941		Thread.sleep(millis);
942		else // too short to sleep
943		Thread.yield();
944	<	long d = ns - (System.nanoTime() - startTime);
945	<	if (d > 0L)
946	<	millis = d / (1000 * 1000);
947	<	else
948	<	break;
944	>	nanos = wakeupTime - System.nanoTime();
945	>	millis = nanos / (1000 * 1000);
946	>	} while (nanos >= 0L);
947	>	}
948	>
949	>	/**
950	>	* Allows use of try-with-resources with per-test thread pools.
951	>	*/
952	>	class PoolCleaner implements AutoCloseable {
953	>	private final ExecutorService pool;
954	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
955	>	public void close() { joinPool(pool); }
956	>	}
957	>
958	>	/**
959	>	* An extension of PoolCleaner that has an action to release the pool.
960	>	*/
961	>	class PoolCleanerWithReleaser extends PoolCleaner {
962	>	private final Runnable releaser;
963	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
964	>	super(pool);
965	>	this.releaser = releaser;
966		}
967	+	public void close() {
968	+	try {
969	+	releaser.run();
970	+	} finally {
971	+	super.close();
972	+	}
973	+	}
974	+	}
975	+
976	+	PoolCleaner cleaner(ExecutorService pool) {
977	+	return new PoolCleaner(pool);
978	+	}
979	+
980	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
981	+	return new PoolCleanerWithReleaser(pool, releaser);
982	+	}
983	+
984	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
985	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
986	+	}
987	+
988	+	Runnable releaser(final CountDownLatch latch) {
989	+	return new Runnable() { public void run() {
990	+	do { latch.countDown(); }
991	+	while (latch.getCount() > 0);
992	+	}};
993	+	}
994	+
995	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
996	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
997	+	}
998	+
999	+	Runnable releaser(final AtomicBoolean flag) {
1000	+	return new Runnable() { public void run() { flag.set(true); }};
1001		}
1002
1003		/**
#	Line 732 | Line 1006 | public class JSR166TestCase extends Test
1006		void joinPool(ExecutorService pool) {
1007		try {
1008		pool.shutdown();
1009	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1010	<	fail("ExecutorService " + pool +
1011	<	" did not terminate in a timely manner");
1009	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1010	>	try {
1011	>	threadFail("ExecutorService " + pool +
1012	>	" did not terminate in a timely manner");
1013	>	} finally {
1014	>	// last resort, for the benefit of subsequent tests
1015	>	pool.shutdownNow();
1016	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1017	>	}
1018	>	}
1019		} catch (SecurityException ok) {
1020		// Allowed in case test doesn't have privs
1021		} catch (InterruptedException fail) {
1022	<	fail("Unexpected InterruptedException");
1022	>	threadFail("Unexpected InterruptedException");
1023		}
1024		}
1025
1026	<	/** Like Runnable, but with the freedom to throw anything */
1027	<	interface Thunk { public void run() throws Throwable; }
1026	>	/**
1027	>	* Like Runnable, but with the freedom to throw anything.
1028	>	* junit folks had the same idea:
1029	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1030	>	*/
1031	>	interface Action { public void run() throws Throwable; }
1032
1033		/**
1034	<	* Runs all the given tasks in parallel, failing if any fail.
1034	>	* Runs all the given actions in parallel, failing if any fail.
1035		* Useful for running multiple variants of tests that are
1036		* necessarily individually slow because they must block.
1037		*/
1038	<	void testInParallel(Thunk ... thunks) {
1038	>	void testInParallel(Action ... actions) {
1039		ExecutorService pool = Executors.newCachedThreadPool();
1040	<	try {
1041	<	ArrayList<Future<?>> futures = new ArrayList<>(thunks.length);
1042	<	for (final Thunk thunk : thunks)
1040	>	try (PoolCleaner cleaner = cleaner(pool)) {
1041	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1042	>	for (final Action action : actions)
1043		futures.add(pool.submit(new CheckedRunnable() {
1044	<	public void realRun() throws Throwable { thunk.run();}}));
1044	>	public void realRun() throws Throwable { action.run();}}));
1045		for (Future<?> future : futures)
1046		try {
1047		assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
#	Line 765 | Line 1050 | public class JSR166TestCase extends Test
1050		} catch (Exception ex) {
1051		threadUnexpectedException(ex);
1052		}
768	–	} finally {
769	–	joinPool(pool);
1053		}
1054		}
1055
1056		/**
1057	<	* A debugging tool to print all stack traces, as jstack does.
1057	>	* A debugging tool to print stack traces of most threads, as jstack does.
1058	>	* Uninteresting threads are filtered out.
1059		*/
1060	<	static void printAllStackTraces() {
1061	<	for (ThreadInfo info :
1062	<	ManagementFactory.getThreadMXBean()
1063	<	.dumpAllThreads(true, true))
1064	<	System.err.print(info);
1065	<	}
1066	<
1067	<	/**
1068	<	* Checks that thread does not terminate within the default
785	<	* millisecond delay of {@code timeoutMillis()}.
786	<	*/
787	<	void assertThreadStaysAlive(Thread thread) {
788	<	assertThreadStaysAlive(thread, timeoutMillis());
789	<	}
1060	>	static void dumpTestThreads() {
1061	>	SecurityManager sm = System.getSecurityManager();
1062	>	if (sm != null) {
1063	>	try {
1064	>	System.setSecurityManager(null);
1065	>	} catch (SecurityException giveUp) {
1066	>	return;
1067	>	}
1068	>	}
1069
1070	<	/**
1071	<	* Checks that thread does not terminate within the given millisecond delay.
1072	<	*/
1073	<	void assertThreadStaysAlive(Thread thread, long millis) {
1074	<	try {
1075	<	// No need to optimize the failing case via Thread.join.
1076	<	delay(millis);
1077	<	assertTrue(thread.isAlive());
1078	<	} catch (InterruptedException fail) {
1079	<	fail("Unexpected InterruptedException");
1070	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1071	>	System.err.println("------ stacktrace dump start ------");
1072	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1073	>	final String name = info.getThreadName();
1074	>	String lockName;
1075	>	if ("Signal Dispatcher".equals(name))
1076	>	continue;
1077	>	if ("Reference Handler".equals(name)
1078	>	&& (lockName = info.getLockName()) != null
1079	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1080	>	continue;
1081	>	if ("Finalizer".equals(name)
1082	>	&& (lockName = info.getLockName()) != null
1083	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1084	>	continue;
1085	>	if ("checkForWedgedTest".equals(name))
1086	>	continue;
1087	>	System.err.print(info);
1088		}
1089	<	}
1089	>	System.err.println("------ stacktrace dump end ------");
1090
1091	<	/**
805	<	* Checks that the threads do not terminate within the default
806	<	* millisecond delay of {@code timeoutMillis()}.
807	<	*/
808	<	void assertThreadsStayAlive(Thread... threads) {
809	<	assertThreadsStayAlive(timeoutMillis(), threads);
1091	>	if (sm != null) System.setSecurityManager(sm);
1092		}
1093
1094		/**
1095	<	* Checks that the threads do not terminate within the given millisecond delay.
1095	>	* Checks that thread eventually enters the expected blocked thread state.
1096		*/
1097	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1098	<	try {
1099	<	// No need to optimize the failing case via Thread.join.
1100	<	delay(millis);
1101	<	for (Thread thread : threads)
1102	<	assertTrue(thread.isAlive());
1103	<	} catch (InterruptedException fail) {
1104	<	fail("Unexpected InterruptedException");
1097	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1098	>	// always sleep at least 1 ms, with high probability avoiding
1099	>	// transitory states
1100	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1101	>	try { delay(1); }
1102	>	catch (InterruptedException fail) {
1103	>	throw new AssertionError("Unexpected InterruptedException", fail);
1104	>	}
1105	>	Thread.State s = thread.getState();
1106	>	if (s == expected)
1107	>	return;
1108	>	else if (s == Thread.State.TERMINATED)
1109	>	fail("Unexpected thread termination");
1110		}
1111	+	fail("timed out waiting for thread to enter thread state " + expected);
1112		}
1113
1114		/**
#	Line 861 | Line 1149 | public class JSR166TestCase extends Test
1149		}
1150
1151		/**
1152	+	* The maximum number of consecutive spurious wakeups we should
1153	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1154	+	*/
1155	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1156	+
1157	+	/**
1158		* The number of elements to place in collections, arrays, etc.
1159		*/
1160		public static final int SIZE = 20;
#	Line 964 | Line 1258 | public class JSR166TestCase extends Test
1258		}
1259		public void refresh() {}
1260		public String toString() {
1261	<	List<Permission> ps = new ArrayList<Permission>();
1261	>	List<Permission> ps = new ArrayList<>();
1262		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1263		ps.add(e.nextElement());
1264		return "AdjustablePolicy with permissions " + ps;
#	Line 992 | Line 1286 | public class JSR166TestCase extends Test
1286
1287		/**
1288		* Sleeps until the given time has elapsed.
1289	<	* Throws AssertionFailedError if interrupted.
1289	>	* Throws AssertionError if interrupted.
1290		*/
1291	<	void sleep(long millis) {
1291	>	static void sleep(long millis) {
1292		try {
1293		delay(millis);
1294		} catch (InterruptedException fail) {
1295	<	AssertionFailedError afe =
1002	<	new AssertionFailedError("Unexpected InterruptedException");
1003	<	afe.initCause(fail);
1004	<	throw afe;
1295	>	throw new AssertionError("Unexpected InterruptedException", fail);
1296		}
1297		}
1298
1299		/**
1300		* Spin-waits up to the specified number of milliseconds for the given
1301		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1302	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1303		*/
1304	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1305	<	long startTime = System.nanoTime();
1306	<	for (;;) {
1307	<	Thread.State s = thread.getState();
1308	<	if (s == Thread.State.BLOCKED ||
1309	<	s == Thread.State.WAITING ||
1310	<	s == Thread.State.TIMED_WAITING)
1311	<	return;
1312	<	else if (s == Thread.State.TERMINATED)
1304	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1305	>	Callable<Boolean> waitingForGodot) {
1306	>	for (long startTime = 0L;;) {
1307	>	switch (thread.getState()) {
1308	>	default: break;
1309	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1310	>	try {
1311	>	if (waitingForGodot == null || waitingForGodot.call())
1312	>	return;
1313	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1314	>	break;
1315	>	case TERMINATED:
1316		fail("Unexpected thread termination");
1317	+	}
1318	+
1319	+	if (startTime == 0L)
1320	+	startTime = System.nanoTime();
1321		else if (millisElapsedSince(startTime) > timeoutMillis) {
1322	<	threadAssertTrue(thread.isAlive());
1323	<	return;
1322	>	assertTrue(thread.isAlive());
1323	>	if (waitingForGodot == null
1324	>	|| thread.getState() == Thread.State.RUNNABLE)
1325	>	fail("timed out waiting for thread to enter wait state");
1326	>	else
1327	>	fail("timed out waiting for condition, thread state="
1328	>	+ thread.getState());
1329		}
1330		Thread.yield();
1331		}
1332		}
1333
1334		/**
1335	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1336	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1335	>	* Spin-waits up to the specified number of milliseconds for the given
1336	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1337	>	*/
1338	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1339	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1340	>	}
1341	>
1342	>	/**
1343	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1344	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1345		*/
1346		void waitForThreadToEnterWaitState(Thread thread) {
1347	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1347	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1348	>	}
1349	>
1350	>	/**
1351	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1352	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1353	>	* and additionally satisfy the given condition.
1354	>	*/
1355	>	void waitForThreadToEnterWaitState(Thread thread,
1356	>	Callable<Boolean> waitingForGodot) {
1357	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1358		}
1359
1360		/**
#	Line 1050 | Line 1372 | public class JSR166TestCase extends Test
1372		//             r.run();
1373		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1374		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1375	<	//             throw new AssertionFailedError("did not return promptly");
1375	>	//             throw new AssertionError("did not return promptly");
1376		//     }
1377
1378		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1063 | Line 1385 | public class JSR166TestCase extends Test
1385		*/
1386		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1387		long startTime = System.nanoTime();
1388	+	T actual = null;
1389		try {
1390	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1390	>	actual = f.get(timeoutMillis, MILLISECONDS);
1391		} catch (Throwable fail) { threadUnexpectedException(fail); }
1392	+	assertEquals(expectedValue, actual);
1393		if (millisElapsedSince(startTime) > timeoutMillis/2)
1394	<	throw new AssertionFailedError("timed get did not return promptly");
1394	>	throw new AssertionError("timed get did not return promptly");
1395		}
1396
1397		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1097 | Line 1421 | public class JSR166TestCase extends Test
1421		} finally {
1422		if (t.getState() != Thread.State.TERMINATED) {
1423		t.interrupt();
1424	<	fail("Test timed out");
1424	>	threadFail("timed out waiting for thread to terminate");
1425		}
1426		}
1427		}
#	Line 1125 | Line 1449 | public class JSR166TestCase extends Test
1449		}
1450		}
1451
1128	–	public abstract class RunnableShouldThrow implements Runnable {
1129	–	protected abstract void realRun() throws Throwable;
1130	–
1131	–	final Class<?> exceptionClass;
1132	–
1133	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1134	–	this.exceptionClass = exceptionClass;
1135	–	}
1136	–
1137	–	public final void run() {
1138	–	try {
1139	–	realRun();
1140	–	threadShouldThrow(exceptionClass.getSimpleName());
1141	–	} catch (Throwable t) {
1142	–	if (! exceptionClass.isInstance(t))
1143	–	threadUnexpectedException(t);
1144	–	}
1145	–	}
1146	–	}
1147	–
1452		public abstract class ThreadShouldThrow extends Thread {
1453		protected abstract void realRun() throws Throwable;
1454
#	Line 1157 | Line 1461 | public class JSR166TestCase extends Test
1461		public final void run() {
1462		try {
1463		realRun();
1160	–	threadShouldThrow(exceptionClass.getSimpleName());
1464		} catch (Throwable t) {
1465		if (! exceptionClass.isInstance(t))
1466		threadUnexpectedException(t);
1467	+	return;
1468		}
1469	+	threadShouldThrow(exceptionClass.getSimpleName());
1470		}
1471		}
1472
#	Line 1171 | Line 1476 | public class JSR166TestCase extends Test
1476		public final void run() {
1477		try {
1478		realRun();
1174	–	threadShouldThrow("InterruptedException");
1479		} catch (InterruptedException success) {
1480		threadAssertFalse(Thread.interrupted());
1481	+	return;
1482		} catch (Throwable fail) {
1483		threadUnexpectedException(fail);
1484		}
1485	+	threadShouldThrow("InterruptedException");
1486		}
1487		}
1488
#	Line 1188 | Line 1494 | public class JSR166TestCase extends Test
1494		return realCall();
1495		} catch (Throwable fail) {
1496		threadUnexpectedException(fail);
1191	–	return null;
1192	–	}
1193	–	}
1194	–	}
1195	–
1196	–	public abstract class CheckedInterruptedCallable<T>
1197	–	implements Callable<T> {
1198	–	protected abstract T realCall() throws Throwable;
1199	–
1200	–	public final T call() {
1201	–	try {
1202	–	T result = realCall();
1203	–	threadShouldThrow("InterruptedException");
1204	–	return result;
1205	–	} catch (InterruptedException success) {
1206	–	threadAssertFalse(Thread.interrupted());
1207	–	} catch (Throwable fail) {
1208	–	threadUnexpectedException(fail);
1497		}
1498	<	return null;
1498	>	throw new AssertionError("unreached");
1499		}
1500		}
1501
#	Line 1222 | Line 1510 | public class JSR166TestCase extends Test
1510		public static final String TEST_STRING = "a test string";
1511
1512		public static class StringTask implements Callable<String> {
1513	<	public String call() { return TEST_STRING; }
1513	>	final String value;
1514	>	public StringTask() { this(TEST_STRING); }
1515	>	public StringTask(String value) { this.value = value; }
1516	>	public String call() { return value; }
1517		}
1518
1519		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 1235 | Line 1526 | public class JSR166TestCase extends Test
1526		}};
1527		}
1528
1529	<	public Runnable awaiter(final CountDownLatch latch) {
1529	>	public Runnable countDowner(final CountDownLatch latch) {
1530		return new CheckedRunnable() {
1531		public void realRun() throws InterruptedException {
1532	<	await(latch);
1532	>	latch.countDown();
1533		}};
1534		}
1535
1536	<	public void await(CountDownLatch latch) {
1536	>	class LatchAwaiter extends CheckedRunnable {
1537	>	static final int NEW = 0;
1538	>	static final int RUNNING = 1;
1539	>	static final int DONE = 2;
1540	>	final CountDownLatch latch;
1541	>	int state = NEW;
1542	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1543	>	public void realRun() throws InterruptedException {
1544	>	state = 1;
1545	>	await(latch);
1546	>	state = 2;
1547	>	}
1548	>	}
1549	>
1550	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1551	>	return new LatchAwaiter(latch);
1552	>	}
1553	>
1554	>	public void await(CountDownLatch latch, long timeoutMillis) {
1555	>	boolean timedOut = false;
1556		try {
1557	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1557	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1558		} catch (Throwable fail) {
1559		threadUnexpectedException(fail);
1560		}
1561	+	if (timedOut)
1562	+	fail("timed out waiting for CountDownLatch for "
1563	+	+ (timeoutMillis/1000) + " sec");
1564	+	}
1565	+
1566	+	public void await(CountDownLatch latch) {
1567	+	await(latch, LONG_DELAY_MS);
1568		}
1569
1570		public void await(Semaphore semaphore) {
1571	+	boolean timedOut = false;
1572		try {
1573	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1573	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1574	>	} catch (Throwable fail) {
1575	>	threadUnexpectedException(fail);
1576	>	}
1577	>	if (timedOut)
1578	>	fail("timed out waiting for Semaphore for "
1579	>	+ (LONG_DELAY_MS/1000) + " sec");
1580	>	}
1581	>
1582	>	public void await(CyclicBarrier barrier) {
1583	>	try {
1584	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1585		} catch (Throwable fail) {
1586		threadUnexpectedException(fail);
1587		}
#	Line 1272 | Line 1601 | public class JSR166TestCase extends Test
1601		//         long startTime = System.nanoTime();
1602		//         while (!flag.get()) {
1603		//             if (millisElapsedSince(startTime) > timeoutMillis)
1604	<	//                 throw new AssertionFailedError("timed out");
1604	>	//                 throw new AssertionError("timed out");
1605		//             Thread.yield();
1606		//         }
1607		//     }
#	Line 1281 | Line 1610 | public class JSR166TestCase extends Test
1610		public String call() { throw new NullPointerException(); }
1611		}
1612
1284	–	public static class CallableOne implements Callable<Integer> {
1285	–	public Integer call() { return one; }
1286	–	}
1287	–
1288	–	public class ShortRunnable extends CheckedRunnable {
1289	–	protected void realRun() throws Throwable {
1290	–	delay(SHORT_DELAY_MS);
1291	–	}
1292	–	}
1293	–
1294	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1295	–	protected void realRun() throws InterruptedException {
1296	–	delay(SHORT_DELAY_MS);
1297	–	}
1298	–	}
1299	–
1300	–	public class SmallRunnable extends CheckedRunnable {
1301	–	protected void realRun() throws Throwable {
1302	–	delay(SMALL_DELAY_MS);
1303	–	}
1304	–	}
1305	–
1306	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1307	–	protected void realRun() {
1308	–	try {
1309	–	delay(SMALL_DELAY_MS);
1310	–	} catch (InterruptedException ok) {}
1311	–	}
1312	–	}
1313	–
1314	–	public class SmallCallable extends CheckedCallable {
1315	–	protected Object realCall() throws InterruptedException {
1316	–	delay(SMALL_DELAY_MS);
1317	–	return Boolean.TRUE;
1318	–	}
1319	–	}
1320	–
1321	–	public class MediumRunnable extends CheckedRunnable {
1322	–	protected void realRun() throws Throwable {
1323	–	delay(MEDIUM_DELAY_MS);
1324	–	}
1325	–	}
1326	–
1327	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1328	–	protected void realRun() throws InterruptedException {
1329	–	delay(MEDIUM_DELAY_MS);
1330	–	}
1331	–	}
1332	–
1613		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1614		return new CheckedRunnable() {
1615		protected void realRun() {
#	Line 1339 | Line 1619 | public class JSR166TestCase extends Test
1619		}};
1620		}
1621
1342	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1343	–	protected void realRun() {
1344	–	try {
1345	–	delay(MEDIUM_DELAY_MS);
1346	–	} catch (InterruptedException ok) {}
1347	–	}
1348	–	}
1349	–
1350	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1351	–	protected void realRun() {
1352	–	try {
1353	–	delay(LONG_DELAY_MS);
1354	–	} catch (InterruptedException ok) {}
1355	–	}
1356	–	}
1357	–
1622		/**
1623		* For use as ThreadFactory in constructors
1624		*/
#	Line 1368 | Line 1632 | public class JSR166TestCase extends Test
1632		boolean isDone();
1633		}
1634
1371	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1372	–	return new TrackedRunnable() {
1373	–	private volatile boolean done = false;
1374	–	public boolean isDone() { return done; }
1375	–	public void run() {
1376	–	try {
1377	–	delay(timeoutMillis);
1378	–	done = true;
1379	–	} catch (InterruptedException ok) {}
1380	–	}
1381	–	};
1382	–	}
1383	–
1384	–	public static class TrackedShortRunnable implements Runnable {
1385	–	public volatile boolean done = false;
1386	–	public void run() {
1387	–	try {
1388	–	delay(SHORT_DELAY_MS);
1389	–	done = true;
1390	–	} catch (InterruptedException ok) {}
1391	–	}
1392	–	}
1393	–
1394	–	public static class TrackedSmallRunnable implements Runnable {
1395	–	public volatile boolean done = false;
1396	–	public void run() {
1397	–	try {
1398	–	delay(SMALL_DELAY_MS);
1399	–	done = true;
1400	–	} catch (InterruptedException ok) {}
1401	–	}
1402	–	}
1403	–
1404	–	public static class TrackedMediumRunnable implements Runnable {
1405	–	public volatile boolean done = false;
1406	–	public void run() {
1407	–	try {
1408	–	delay(MEDIUM_DELAY_MS);
1409	–	done = true;
1410	–	} catch (InterruptedException ok) {}
1411	–	}
1412	–	}
1413	–
1414	–	public static class TrackedLongRunnable implements Runnable {
1415	–	public volatile boolean done = false;
1416	–	public void run() {
1417	–	try {
1418	–	delay(LONG_DELAY_MS);
1419	–	done = true;
1420	–	} catch (InterruptedException ok) {}
1421	–	}
1422	–	}
1423	–
1635		public static class TrackedNoOpRunnable implements Runnable {
1636		public volatile boolean done = false;
1637		public void run() {
#	Line 1428 | Line 1639 | public class JSR166TestCase extends Test
1639		}
1640		}
1641
1431	–	public static class TrackedCallable implements Callable {
1432	–	public volatile boolean done = false;
1433	–	public Object call() {
1434	–	try {
1435	–	delay(SMALL_DELAY_MS);
1436	–	done = true;
1437	–	} catch (InterruptedException ok) {}
1438	–	return Boolean.TRUE;
1439	–	}
1440	–	}
1441	–
1642		/**
1643		* Analog of CheckedRunnable for RecursiveAction
1644		*/
#	Line 1465 | Line 1665 | public class JSR166TestCase extends Test
1665		return realCompute();
1666		} catch (Throwable fail) {
1667		threadUnexpectedException(fail);
1468	–	return null;
1668		}
1669	+	throw new AssertionError("unreached");
1670		}
1671		}
1672
#	Line 1480 | Line 1680 | public class JSR166TestCase extends Test
1680
1681		/**
1682		* A CyclicBarrier that uses timed await and fails with
1683	<	* AssertionFailedErrors instead of throwing checked exceptions.
1683	>	* AssertionErrors instead of throwing checked exceptions.
1684		*/
1685	<	public class CheckedBarrier extends CyclicBarrier {
1685	>	public static class CheckedBarrier extends CyclicBarrier {
1686		public CheckedBarrier(int parties) { super(parties); }
1687
1688		public int await() {
1689		try {
1690		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1691		} catch (TimeoutException timedOut) {
1692	<	throw new AssertionFailedError("timed out");
1692	>	throw new AssertionError("timed out");
1693		} catch (Exception fail) {
1694	<	AssertionFailedError afe =
1495	<	new AssertionFailedError("Unexpected exception: " + fail);
1496	<	afe.initCause(fail);
1497	<	throw afe;
1694	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1695		}
1696		}
1697		}
#	Line 1505 | Line 1702 | public class JSR166TestCase extends Test
1702		assertEquals(0, q.size());
1703		assertNull(q.peek());
1704		assertNull(q.poll());
1705	<	assertNull(q.poll(0, MILLISECONDS));
1705	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1706		assertEquals(q.toString(), "[]");
1707		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1708		assertFalse(q.iterator().hasNext());
#	Line 1546 | Line 1743 | public class JSR166TestCase extends Test
1743		}
1744		}
1745
1746	+	void assertImmutable(final Object o) {
1747	+	if (o instanceof Collection) {
1748	+	assertThrows(
1749	+	UnsupportedOperationException.class,
1750	+	new Runnable() { public void run() {
1751	+	((Collection) o).add(null);}});
1752	+	}
1753	+	}
1754	+
1755		@SuppressWarnings("unchecked")
1756		<T> T serialClone(T o) {
1757	+	T clone = null;
1758		try {
1759		ObjectInputStream ois = new ObjectInputStream
1760		(new ByteArrayInputStream(serialBytes(o)));
1761	<	T clone = (T) ois.readObject();
1555	<	assertSame(o.getClass(), clone.getClass());
1556	<	return clone;
1761	>	clone = (T) ois.readObject();
1762		} catch (Throwable fail) {
1763		threadUnexpectedException(fail);
1764	+	}
1765	+	if (o == clone) assertImmutable(o);
1766	+	else assertSame(o.getClass(), clone.getClass());
1767	+	return clone;
1768	+	}
1769	+
1770	+	/**
1771	+	* A version of serialClone that leaves error handling (for
1772	+	* e.g. NotSerializableException) up to the caller.
1773	+	*/
1774	+	@SuppressWarnings("unchecked")
1775	+	<T> T serialClonePossiblyFailing(T o)
1776	+	throws ReflectiveOperationException, java.io.IOException {
1777	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1778	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1779	+	oos.writeObject(o);
1780	+	oos.flush();
1781	+	oos.close();
1782	+	ObjectInputStream ois = new ObjectInputStream
1783	+	(new ByteArrayInputStream(bos.toByteArray()));
1784	+	T clone = (T) ois.readObject();
1785	+	if (o == clone) assertImmutable(o);
1786	+	else assertSame(o.getClass(), clone.getClass());
1787	+	return clone;
1788	+	}
1789	+
1790	+	/**
1791	+	* If o implements Cloneable and has a public clone method,
1792	+	* returns a clone of o, else null.
1793	+	*/
1794	+	@SuppressWarnings("unchecked")
1795	+	<T> T cloneableClone(T o) {
1796	+	if (!(o instanceof Cloneable)) return null;
1797	+	final T clone;
1798	+	try {
1799	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1800	+	} catch (NoSuchMethodException ok) {
1801		return null;
1802	+	} catch (ReflectiveOperationException unexpected) {
1803	+	throw new Error(unexpected);
1804		}
1805	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1806	+	assertSame(o.getClass(), clone.getClass());
1807	+	return clone;
1808		}
1809
1810		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
#	Line 1567 | Line 1814 | public class JSR166TestCase extends Test
1814		try { throwingAction.run(); }
1815		catch (Throwable t) {
1816		threw = true;
1817	<	if (!expectedExceptionClass.isInstance(t)) {
1818	<	AssertionFailedError afe =
1819	<	new AssertionFailedError
1820	<	("Expected " + expectedExceptionClass.getName() +
1821	<	", got " + t.getClass().getName());
1575	<	afe.initCause(t);
1576	<	threadUnexpectedException(afe);
1577	<	}
1817	>	if (!expectedExceptionClass.isInstance(t))
1818	>	throw new AssertionError(
1819	>	"Expected " + expectedExceptionClass.getName() +
1820	>	", got " + t.getClass().getName(),
1821	>	t);
1822		}
1823		if (!threw)
1824		shouldThrow(expectedExceptionClass.getName());
#	Line 1588 | Line 1832 | public class JSR166TestCase extends Test
1832		} catch (NoSuchElementException success) {}
1833		assertFalse(it.hasNext());
1834		}
1835	+
1836	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1837	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1838	+	}
1839	+
1840	+	public Runnable runnableThrowing(final RuntimeException ex) {
1841	+	return new Runnable() { public void run() { throw ex; }};
1842	+	}
1843	+
1844	+	/** A reusable thread pool to be shared by tests. */
1845	+	static final ExecutorService cachedThreadPool =
1846	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1847	+	1000L, MILLISECONDS,
1848	+	new SynchronousQueue<Runnable>());
1849	+
1850	+	static <T> void shuffle(T[] array) {
1851	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1852	+	}
1853	+
1854	+	/**
1855	+	* Returns the same String as would be returned by {@link
1856	+	* Object#toString}, whether or not the given object's class
1857	+	* overrides toString().
1858	+	*
1859	+	* @see System#identityHashCode
1860	+	*/
1861	+	static String identityString(Object x) {
1862	+	return x.getClass().getName()
1863	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1864	+	}
1865	+
1866	+	// --- Shared assertions for Executor tests ---
1867	+
1868	+	/**
1869	+	* Returns maximum number of tasks that can be submitted to given
1870	+	* pool (with bounded queue) before saturation (when submission
1871	+	* throws RejectedExecutionException).
1872	+	*/
1873	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1874	+	BlockingQueue<Runnable> q = pool.getQueue();
1875	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1876	+	}
1877	+
1878	+	@SuppressWarnings("FutureReturnValueIgnored")
1879	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1880	+	try {
1881	+	e.execute((Runnable) null);
1882	+	shouldThrow();
1883	+	} catch (NullPointerException success) {}
1884	+
1885	+	if (! (e instanceof ExecutorService)) return;
1886	+	ExecutorService es = (ExecutorService) e;
1887	+	try {
1888	+	es.submit((Runnable) null);
1889	+	shouldThrow();
1890	+	} catch (NullPointerException success) {}
1891	+	try {
1892	+	es.submit((Runnable) null, Boolean.TRUE);
1893	+	shouldThrow();
1894	+	} catch (NullPointerException success) {}
1895	+	try {
1896	+	es.submit((Callable) null);
1897	+	shouldThrow();
1898	+	} catch (NullPointerException success) {}
1899	+
1900	+	if (! (e instanceof ScheduledExecutorService)) return;
1901	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1902	+	try {
1903	+	ses.schedule((Runnable) null,
1904	+	randomTimeout(), randomTimeUnit());
1905	+	shouldThrow();
1906	+	} catch (NullPointerException success) {}
1907	+	try {
1908	+	ses.schedule((Callable) null,
1909	+	randomTimeout(), randomTimeUnit());
1910	+	shouldThrow();
1911	+	} catch (NullPointerException success) {}
1912	+	try {
1913	+	ses.scheduleAtFixedRate((Runnable) null,
1914	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1915	+	shouldThrow();
1916	+	} catch (NullPointerException success) {}
1917	+	try {
1918	+	ses.scheduleWithFixedDelay((Runnable) null,
1919	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1920	+	shouldThrow();
1921	+	} catch (NullPointerException success) {}
1922	+	}
1923	+
1924	+	void setRejectedExecutionHandler(
1925	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1926	+	p.setRejectedExecutionHandler(handler);
1927	+	assertSame(handler, p.getRejectedExecutionHandler());
1928	+	}
1929	+
1930	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1931	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1932	+	final long savedTaskCount = p.getTaskCount();
1933	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1934	+	final int savedQueueSize = p.getQueue().size();
1935	+	final boolean stock = (p.getClass().getClassLoader() == null);
1936	+
1937	+	Runnable r = () -> {};
1938	+	Callable<Boolean> c = () -> Boolean.TRUE;
1939	+
1940	+	class Recorder implements RejectedExecutionHandler {
1941	+	public volatile Runnable r = null;
1942	+	public volatile ThreadPoolExecutor p = null;
1943	+	public void reset() { r = null; p = null; }
1944	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1945	+	assertNull(this.r);
1946	+	assertNull(this.p);
1947	+	this.r = r;
1948	+	this.p = p;
1949	+	}
1950	+	}
1951	+
1952	+	// check custom handler is invoked exactly once per task
1953	+	Recorder recorder = new Recorder();
1954	+	setRejectedExecutionHandler(p, recorder);
1955	+	for (int i = 2; i--> 0; ) {
1956	+	recorder.reset();
1957	+	p.execute(r);
1958	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1959	+	assertSame(r, recorder.r);
1960	+	assertSame(p, recorder.p);
1961	+
1962	+	recorder.reset();
1963	+	assertFalse(p.submit(r).isDone());
1964	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1965	+	assertSame(p, recorder.p);
1966	+
1967	+	recorder.reset();
1968	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1969	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1970	+	assertSame(p, recorder.p);
1971	+
1972	+	recorder.reset();
1973	+	assertFalse(p.submit(c).isDone());
1974	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1975	+	assertSame(p, recorder.p);
1976	+
1977	+	if (p instanceof ScheduledExecutorService) {
1978	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1979	+	ScheduledFuture<?> future;
1980	+
1981	+	recorder.reset();
1982	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
1983	+	assertFalse(future.isDone());
1984	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1985	+	assertSame(p, recorder.p);
1986	+
1987	+	recorder.reset();
1988	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
1989	+	assertFalse(future.isDone());
1990	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1991	+	assertSame(p, recorder.p);
1992	+
1993	+	recorder.reset();
1994	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1995	+	assertFalse(future.isDone());
1996	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1997	+	assertSame(p, recorder.p);
1998	+
1999	+	recorder.reset();
2000	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2001	+	assertFalse(future.isDone());
2002	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2003	+	assertSame(p, recorder.p);
2004	+	}
2005	+	}
2006	+
2007	+	// Checking our custom handler above should be sufficient, but
2008	+	// we add some integration tests of standard handlers.
2009	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2010	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2011	+
2012	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2013	+	try {
2014	+	p.execute(setThread);
2015	+	shouldThrow();
2016	+	} catch (RejectedExecutionException success) {}
2017	+	assertNull(thread.get());
2018	+
2019	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2020	+	p.execute(setThread);
2021	+	assertNull(thread.get());
2022	+
2023	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2024	+	p.execute(setThread);
2025	+	if (p.isShutdown())
2026	+	assertNull(thread.get());
2027	+	else
2028	+	assertSame(Thread.currentThread(), thread.get());
2029	+
2030	+	setRejectedExecutionHandler(p, savedHandler);
2031	+
2032	+	// check that pool was not perturbed by handlers
2033	+	assertEquals(savedTaskCount, p.getTaskCount());
2034	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2035	+	assertEquals(savedQueueSize, p.getQueue().size());
2036	+	}
2037	+
2038	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2039	+	assertEquals(x, y);
2040	+	assertEquals(y, x);
2041	+	assertEquals(x.isEmpty(), y.isEmpty());
2042	+	assertEquals(x.size(), y.size());
2043	+	if (x instanceof List) {
2044	+	assertEquals(x.toString(), y.toString());
2045	+	}
2046	+	if (x instanceof List || x instanceof Set) {
2047	+	assertEquals(x.hashCode(), y.hashCode());
2048	+	}
2049	+	if (x instanceof List || x instanceof Deque) {
2050	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2051	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2052	+	y.toArray(new Object[0])));
2053	+	}
2054	+	}
2055	+
2056	+	/**
2057	+	* A weaker form of assertCollectionsEquals which does not insist
2058	+	* that the two collections satisfy Object#equals(Object), since
2059	+	* they may use identity semantics as Deques do.
2060	+	*/
2061	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2062	+	if (x instanceof List || x instanceof Set)
2063	+	assertCollectionsEquals(x, y);
2064	+	else {
2065	+	assertEquals(x.isEmpty(), y.isEmpty());
2066	+	assertEquals(x.size(), y.size());
2067	+	assertEquals(new HashSet(x), new HashSet(y));
2068	+	if (x instanceof Deque) {
2069	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2070	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2071	+	y.toArray(new Object[0])));
2072	+	}
2073	+	}
2074	+	}
2075		}

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