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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.141 by jsr166, Tue Sep 8 16:49:16 2015 UTC vs.
Revision 1.243 by jsr166, Thu Apr 5 03:36:54 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
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>
126	>	* this way, but enough to live with.
127		*
128	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
128	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
129		* to invoke {@code super.setUp} and {@code super.tearDown} within
130		* them. These methods are used to clear and check for thread
131	<	* assertion failures.</li>
131	>	* assertion failures.
132		*
133		* <li>All delays and timeouts must use one of the constants {@code
134		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 89 | Line 139 | import junit.framework.TestSuite;
139		* is always discriminable as larger than SHORT and smaller than
140		* MEDIUM.  And so on. These constants are set to conservative values,
141		* but even so, if there is ever any doubt, they can all be increased
142	<	* in one spot to rerun tests on slower platforms.</li>
142	>	* in one spot to rerun tests on slower platforms.
143		*
144	<	* <li> All threads generated must be joined inside each test case
144	>	* <li>All threads generated must be joined inside each test case
145		* method (or {@code fail} to do so) before returning from the
146		* method. The {@code joinPool} method can be used to do this when
147	<	* using Executors.</li>
147	>	* using Executors.
148		*
149		* </ol>
150		*
151		* <p><b>Other notes</b>
152		* <ul>
153		*
154	<	* <li> Usually, there is one testcase method per JSR166 method
154	>	* <li>Usually, there is one testcase method per JSR166 method
155		* covering "normal" operation, and then as many exception-testing
156		* methods as there are exceptions the method can throw. Sometimes
157		* there are multiple tests per JSR166 method when the different
158		* "normal" behaviors differ significantly. And sometimes testcases
159	<	* cover multiple methods when they cannot be tested in
110	<	* isolation.</li>
159	>	* cover multiple methods when they cannot be tested in isolation.
160		*
161	<	* <li> The documentation style for testcases is to provide as javadoc
161	>	* <li>The documentation style for testcases is to provide as javadoc
162		* a simple sentence or two describing the property that the testcase
163		* method purports to test. The javadocs do not say anything about how
164	<	* the property is tested. To find out, read the code.</li>
164	>	* the property is tested. To find out, read the code.
165		*
166	<	* <li> These tests are "conformance tests", and do not attempt to
166	>	* <li>These tests are "conformance tests", and do not attempt to
167		* test throughput, latency, scalability or other performance factors
168		* (see the separate "jtreg" tests for a set intended to check these
169		* for the most central aspects of functionality.) So, most tests use
170		* the smallest sensible numbers of threads, collection sizes, etc
171	<	* needed to check basic conformance.</li>
171	>	* needed to check basic conformance.
172		*
173		* <li>The test classes currently do not declare inclusion in
174		* any particular package to simplify things for people integrating
175	<	* them in TCK test suites.</li>
175	>	* them in TCK test suites.
176		*
177	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
178	<	* runs all JSR166 unit tests.</li>
177	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
178	>	* runs all JSR166 unit tests.
179		*
180		* </ul>
181		*/
#	Line 170 | Line 219 | public class JSR166TestCase extends Test
219		private static final int suiteRuns =
220		Integer.getInteger("jsr166.suiteRuns", 1);
221
222	+	/**
223	+	* Returns the value of the system property, or NaN if not defined.
224	+	*/
225	+	private static float systemPropertyValue(String name) {
226	+	String floatString = System.getProperty(name);
227	+	if (floatString == null)
228	+	return Float.NaN;
229	+	try {
230	+	return Float.parseFloat(floatString);
231	+	} catch (NumberFormatException ex) {
232	+	throw new IllegalArgumentException(
233	+	String.format("Bad float value in system property %s=%s",
234	+	name, floatString));
235	+	}
236	+	}
237	+
238	+	/**
239	+	* The scaling factor to apply to standard delays used in tests.
240	+	* May be initialized from any of:
241	+	* - the "jsr166.delay.factor" system property
242	+	* - the "test.timeout.factor" system property (as used by jtreg)
243	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
244	+	* - hard-coded fuzz factor when using a known slowpoke VM
245	+	*/
246	+	private static final float delayFactor = delayFactor();
247	+
248	+	private static float delayFactor() {
249	+	float x;
250	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
251	+	return x;
252	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
253	+	return x;
254	+	String prop = System.getProperty("java.vm.version");
255	+	if (prop != null && prop.matches(".*debug.*"))
256	+	return 4.0f; // How much slower is fastdebug than product?!
257	+	return 1.0f;
258	+	}
259	+
260		public JSR166TestCase() { super(); }
261		public JSR166TestCase(String name) { super(name); }
262
#	Line 185 | Line 272 | public class JSR166TestCase extends Test
272		return (regex == null) ? null : Pattern.compile(regex);
273		}
274
275	<	protected void runTest() throws Throwable {
275	>	// Instrumentation to debug very rare, but very annoying hung test runs.
276	>	static volatile TestCase currentTestCase;
277	>	// static volatile int currentRun = 0;
278	>	static {
279	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
280	>	// Avoid spurious reports with enormous runsPerTest.
281	>	// A single test case run should never take more than 1 second.
282	>	// But let's cap it at the high end too ...
283	>	final int timeoutMinutes =
284	>	Math.min(15, Math.max(runsPerTest / 60, 1));
285	>	for (TestCase lastTestCase = currentTestCase;;) {
286	>	try { MINUTES.sleep(timeoutMinutes); }
287	>	catch (InterruptedException unexpected) { break; }
288	>	if (lastTestCase == currentTestCase) {
289	>	System.err.printf(
290	>	"Looks like we're stuck running test: %s%n",
291	>	lastTestCase);
292	>	//                     System.err.printf(
293	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
294	>	//                         lastTestCase, currentRun, runsPerTest);
295	>	//                     System.err.println("availableProcessors=" +
296	>	//                         Runtime.getRuntime().availableProcessors());
297	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
298	>	dumpTestThreads();
299	>	// one stack dump is probably enough; more would be spam
300	>	break;
301	>	}
302	>	lastTestCase = currentTestCase;
303	>	}}};
304	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
305	>	thread.setDaemon(true);
306	>	thread.start();
307	>	}
308	>
309	>	//     public static String cpuModel() {
310	>	//         try {
311	>	//             java.util.regex.Matcher matcher
312	>	//               = Pattern.compile("model name\\s*: (.*)")
313	>	//                 .matcher(new String(
314	>	//                     java.nio.file.Files.readAllBytes(
315	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
316	>	//             matcher.find();
317	>	//             return matcher.group(1);
318	>	//         } catch (Exception ex) { return null; }
319	>	//     }
320	>
321	>	public void runBare() throws Throwable {
322	>	currentTestCase = this;
323		if (methodFilter == null
324	<	|| methodFilter.matcher(toString()).find()) {
325	<	for (int i = 0; i < runsPerTest; i++) {
326	<	if (profileTests)
327	<	runTestProfiled();
328	<	else
329	<	super.runTest();
330	<	}
324	>	|| methodFilter.matcher(toString()).find())
325	>	super.runBare();
326	>	}
327	>
328	>	protected void runTest() throws Throwable {
329	>	for (int i = 0; i < runsPerTest; i++) {
330	>	// currentRun = i;
331	>	if (profileTests)
332	>	runTestProfiled();
333	>	else
334	>	super.runTest();
335		}
336		}
337
338		protected void runTestProfiled() throws Throwable {
339	<	// Warmup run, notably to trigger all needed classloading.
340	<	super.runTest();
203	<	long t0 = System.nanoTime();
204	<	try {
339	>	for (int i = 0; i < 2; i++) {
340	>	long startTime = System.nanoTime();
341		super.runTest();
342	<	} finally {
343	<	long elapsedMillis = millisElapsedSince(t0);
344	<	if (elapsedMillis >= profileThreshold)
342	>	long elapsedMillis = millisElapsedSince(startTime);
343	>	if (elapsedMillis < profileThreshold)
344	>	break;
345	>	// Never report first run of any test; treat it as a
346	>	// warmup run, notably to trigger all needed classloading,
347	>	if (i > 0)
348		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
349		}
350		}
#	Line 217 | Line 356 | public class JSR166TestCase extends Test
356		main(suite(), args);
357		}
358
359	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
360	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
361	+	long runTime;
362	+	public void startTest(Test test) {}
363	+	protected void printHeader(long runTime) {
364	+	this.runTime = runTime; // defer printing for later
365	+	}
366	+	protected void printFooter(TestResult result) {
367	+	if (result.wasSuccessful()) {
368	+	getWriter().println("OK (" + result.runCount() + " tests)"
369	+	+ "  Time: " + elapsedTimeAsString(runTime));
370	+	} else {
371	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
372	+	super.printFooter(result);
373	+	}
374	+	}
375	+	}
376	+
377	+	/**
378	+	* Returns a TestRunner that doesn't bother with unnecessary
379	+	* fluff, like printing a "." for each test case.
380	+	*/
381	+	static junit.textui.TestRunner newPithyTestRunner() {
382	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
383	+	runner.setPrinter(new PithyResultPrinter(System.out));
384	+	return runner;
385	+	}
386	+
387		/**
388		* Runs all unit tests in the given test suite.
389		* Actual behavior influenced by jsr166.* system properties.
#	Line 228 | Line 395 | public class JSR166TestCase extends Test
395		System.setSecurityManager(new SecurityManager());
396		}
397		for (int i = 0; i < suiteRuns; i++) {
398	<	TestResult result = junit.textui.TestRunner.run(suite);
398	>	TestResult result = newPithyTestRunner().doRun(suite);
399		if (!result.wasSuccessful())
400		System.exit(1);
401		System.gc();
#	Line 254 | Line 421 | public class JSR166TestCase extends Test
421		for (String testClassName : testClassNames) {
422		try {
423		Class<?> testClass = Class.forName(testClassName);
424	<	Method m = testClass.getDeclaredMethod("suite",
258	<	new Class<?>[0]);
424	>	Method m = testClass.getDeclaredMethod("suite");
425		suite.addTest(newTestSuite((Test)m.invoke(null)));
426	<	} catch (Exception e) {
427	<	throw new Error("Missing test class", e);
426	>	} catch (ReflectiveOperationException e) {
427	>	throw new AssertionError("Missing test class", e);
428		}
429		}
430		}
#	Line 280 | Line 446 | public class JSR166TestCase extends Test
446		}
447		}
448
449	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
450	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
451	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
452	<	public static boolean atLeastJava9() {
453	<	return JAVA_CLASS_VERSION >= 53.0
288	<	// 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	<	}
449	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
450	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
451	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
452	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
453	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
454
455		/**
456		* Collects all JSR166 unit tests as one suite.
#	Line 312 | Line 471 | public class JSR166TestCase extends Test
471		AbstractQueuedLongSynchronizerTest.suite(),
472		ArrayBlockingQueueTest.suite(),
473		ArrayDequeTest.suite(),
474	+	ArrayListTest.suite(),
475		AtomicBooleanTest.suite(),
476		AtomicIntegerArrayTest.suite(),
477		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 334 | Line 494 | public class JSR166TestCase extends Test
494		CopyOnWriteArrayListTest.suite(),
495		CopyOnWriteArraySetTest.suite(),
496		CountDownLatchTest.suite(),
497	+	CountedCompleterTest.suite(),
498		CyclicBarrierTest.suite(),
499		DelayQueueTest.suite(),
500		EntryTest.suite(),
#	Line 362 | Line 523 | public class JSR166TestCase extends Test
523		TreeMapTest.suite(),
524		TreeSetTest.suite(),
525		TreeSubMapTest.suite(),
526	<	TreeSubSetTest.suite());
526	>	TreeSubSetTest.suite(),
527	>	VectorTest.suite());
528
529		// Java8+ test classes
530		if (atLeastJava8()) {
531		String[] java8TestClassNames = {
532	+	"ArrayDeque8Test",
533		"Atomic8Test",
534		"CompletableFutureTest",
535		"ConcurrentHashMap8Test",
536	<	"CountedCompleterTest",
536	>	"CountedCompleter8Test",
537		"DoubleAccumulatorTest",
538		"DoubleAdderTest",
539		"ForkJoinPool8Test",
540		"ForkJoinTask8Test",
541	+	"HashMapTest",
542	+	"LinkedBlockingDeque8Test",
543	+	"LinkedBlockingQueue8Test",
544		"LongAccumulatorTest",
545		"LongAdderTest",
546		"SplittableRandomTest",
547		"StampedLockTest",
548		"SubmissionPublisherTest",
549		"ThreadLocalRandom8Test",
550	+	"TimeUnit8Test",
551		};
552		addNamedTestClasses(suite, java8TestClassNames);
553		}
#	Line 388 | Line 555 | public class JSR166TestCase extends Test
555		// Java9+ test classes
556		if (atLeastJava9()) {
557		String[] java9TestClassNames = {
558	<	// Currently empty
558	>	"AtomicBoolean9Test",
559	>	"AtomicInteger9Test",
560	>	"AtomicIntegerArray9Test",
561	>	"AtomicLong9Test",
562	>	"AtomicLongArray9Test",
563	>	"AtomicReference9Test",
564	>	"AtomicReferenceArray9Test",
565	>	"ExecutorCompletionService9Test",
566	>	"ForkJoinPool9Test",
567		};
568		addNamedTestClasses(suite, java9TestClassNames);
569		}
#	Line 399 | Line 574 | public class JSR166TestCase extends Test
574		/** Returns list of junit-style test method names in given class. */
575		public static ArrayList<String> testMethodNames(Class<?> testClass) {
576		Method[] methods = testClass.getDeclaredMethods();
577	<	ArrayList<String> names = new ArrayList<String>(methods.length);
577	>	ArrayList<String> names = new ArrayList<>(methods.length);
578		for (Method method : methods) {
579		if (method.getName().startsWith("test")
580		&& Modifier.isPublic(method.getModifiers())
#	Line 426 | Line 601 | public class JSR166TestCase extends Test
601		for (String methodName : testMethodNames(testClass))
602		suite.addTest((Test) c.newInstance(data, methodName));
603		return suite;
604	<	} catch (Exception e) {
605	<	throw new Error(e);
604	>	} catch (ReflectiveOperationException e) {
605	>	throw new AssertionError(e);
606		}
607		}
608
#	Line 443 | Line 618 | public class JSR166TestCase extends Test
618		if (atLeastJava8()) {
619		String name = testClass.getName();
620		String name8 = name.replaceAll("Test$", "8Test");
621	<	if (name.equals(name8)) throw new Error(name);
621	>	if (name.equals(name8)) throw new AssertionError(name);
622		try {
623		return (Test)
624		Class.forName(name8)
625	<	.getMethod("testSuite", new Class[] { dataClass })
625	>	.getMethod("testSuite", dataClass)
626		.invoke(null, data);
627	<	} catch (Exception e) {
628	<	throw new Error(e);
627	>	} catch (ReflectiveOperationException e) {
628	>	throw new AssertionError(e);
629		}
630		} else {
631		return new TestSuite();
632		}
458	–
633		}
634
635		// Delays for timing-dependent tests, in milliseconds.
#	Line 465 | Line 639 | public class JSR166TestCase extends Test
639		public static long MEDIUM_DELAY_MS;
640		public static long LONG_DELAY_MS;
641
642	+	private static final long RANDOM_TIMEOUT;
643	+	private static final long RANDOM_EXPIRED_TIMEOUT;
644	+	private static final TimeUnit RANDOM_TIMEUNIT;
645	+	static {
646	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
647	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
648	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
649	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
650	+	TimeUnit[] timeUnits = TimeUnit.values();
651	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
652	+	}
653	+
654	+	/**
655	+	* Returns a timeout for use when any value at all will do.
656	+	*/
657	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
658	+
659		/**
660	<	* Returns the shortest timed delay. This could
661	<	* be reimplemented to use for example a Property.
660	>	* Returns a timeout that means "no waiting", i.e. not positive.
661	>	*/
662	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
663	>
664	>	/**
665	>	* Returns a random non-null TimeUnit.
666	>	*/
667	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
668	>
669	>	/**
670	>	* Returns the shortest timed delay. This can be scaled up for
671	>	* slow machines using the jsr166.delay.factor system property,
672	>	* or via jtreg's -timeoutFactor: flag.
673	>	* http://openjdk.java.net/jtreg/command-help.html
674		*/
675		protected long getShortDelay() {
676	<	return 50;
676	>	return (long) (50 * delayFactor);
677		}
678
679		/**
#	Line 483 | Line 686 | public class JSR166TestCase extends Test
686		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
687		}
688
689	+	private static final long TIMEOUT_DELAY_MS
690	+	= (long) (12.0 * Math.cbrt(delayFactor));
691	+
692		/**
693	<	* Returns a timeout in milliseconds to be used in tests that
694	<	* verify that operations block or time out.
693	>	* Returns a timeout in milliseconds to be used in tests that verify
694	>	* that operations block or time out.  We want this to be longer
695	>	* than the OS scheduling quantum, but not too long, so don't scale
696	>	* linearly with delayFactor; we use "crazy" cube root instead.
697		*/
698	<	long timeoutMillis() {
699	<	return SHORT_DELAY_MS / 4;
698	>	static long timeoutMillis() {
699	>	return TIMEOUT_DELAY_MS;
700		}
701
702		/**
#	Line 504 | Line 712 | public class JSR166TestCase extends Test
712		* The first exception encountered if any threadAssertXXX method fails.
713		*/
714		private final AtomicReference<Throwable> threadFailure
715	<	= new AtomicReference<Throwable>(null);
715	>	= new AtomicReference<>(null);
716
717		/**
718		* Records an exception so that it can be rethrown later in the test
#	Line 513 | Line 721 | public class JSR166TestCase extends Test
721		* the same test have no effect.
722		*/
723		public void threadRecordFailure(Throwable t) {
724	+	System.err.println(t);
725	+	dumpTestThreads();
726		threadFailure.compareAndSet(null, t);
727		}
728
#	Line 520 | Line 730 | public class JSR166TestCase extends Test
730		setDelays();
731		}
732
733	+	void tearDownFail(String format, Object... args) {
734	+	String msg = toString() + ": " + String.format(format, args);
735	+	System.err.println(msg);
736	+	dumpTestThreads();
737	+	throw new AssertionError(msg);
738	+	}
739	+
740		/**
741		* Extra checks that get done for all test cases.
742		*
#	Line 538 | Line 755 | public class JSR166TestCase extends Test
755		throw (RuntimeException) t;
756		else if (t instanceof Exception)
757		throw (Exception) t;
758	<	else {
759	<	AssertionFailedError afe =
543	<	new AssertionFailedError(t.toString());
544	<	afe.initCause(t);
545	<	throw afe;
546	<	}
758	>	else
759	>	throw new AssertionError(t.toString(), t);
760		}
761
762		if (Thread.interrupted())
763	<	throw new AssertionFailedError("interrupt status set in main thread");
763	>	tearDownFail("interrupt status set in main thread");
764
765		checkForkJoinPoolThreadLeaks();
766		}
767
768		/**
769	<	* Finds missing try { ... } finally { joinPool(e); }
769	>	* Finds missing PoolCleaners
770		*/
771		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
772	<	Thread[] survivors = new Thread[5];
772	>	Thread[] survivors = new Thread[7];
773		int count = Thread.enumerate(survivors);
774		for (int i = 0; i < count; i++) {
775		Thread thread = survivors[i];
#	Line 564 | Line 777 | public class JSR166TestCase extends Test
777		if (name.startsWith("ForkJoinPool-")) {
778		// give thread some time to terminate
779		thread.join(LONG_DELAY_MS);
780	<	if (!thread.isAlive()) continue;
781	<	throw new AssertionFailedError
782	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
570	<	toString(), name));
780	>	if (thread.isAlive())
781	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
782	>	thread);
783		}
784		}
785	+
786	+	if (!ForkJoinPool.commonPool()
787	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
788	+	tearDownFail("ForkJoin common pool thread stuck");
789		}
790
791		/**
792		* Just like fail(reason), but additionally recording (using
793	<	* threadRecordFailure) any AssertionFailedError thrown, so that
794	<	* the current testcase will fail.
793	>	* threadRecordFailure) any AssertionError thrown, so that the
794	>	* current testcase will fail.
795		*/
796		public void threadFail(String reason) {
797		try {
798		fail(reason);
799	<	} catch (AssertionFailedError t) {
800	<	threadRecordFailure(t);
801	<	fail(reason);
799	>	} catch (AssertionError fail) {
800	>	threadRecordFailure(fail);
801	>	throw fail;
802		}
803		}
804
805		/**
806		* Just like assertTrue(b), but additionally recording (using
807	<	* threadRecordFailure) any AssertionFailedError thrown, so that
808	<	* the current testcase will fail.
807	>	* threadRecordFailure) any AssertionError thrown, so that the
808	>	* current testcase will fail.
809		*/
810		public void threadAssertTrue(boolean b) {
811		try {
812		assertTrue(b);
813	<	} catch (AssertionFailedError t) {
814	<	threadRecordFailure(t);
815	<	throw t;
813	>	} catch (AssertionError fail) {
814	>	threadRecordFailure(fail);
815	>	throw fail;
816		}
817		}
818
819		/**
820		* Just like assertFalse(b), but additionally recording (using
821	<	* threadRecordFailure) any AssertionFailedError thrown, so that
822	<	* the current testcase will fail.
821	>	* threadRecordFailure) any AssertionError thrown, so that the
822	>	* current testcase will fail.
823		*/
824		public void threadAssertFalse(boolean b) {
825		try {
826		assertFalse(b);
827	<	} catch (AssertionFailedError t) {
828	<	threadRecordFailure(t);
829	<	throw t;
827	>	} catch (AssertionError fail) {
828	>	threadRecordFailure(fail);
829	>	throw fail;
830		}
831		}
832
833		/**
834		* Just like assertNull(x), but additionally recording (using
835	<	* threadRecordFailure) any AssertionFailedError thrown, so that
836	<	* the current testcase will fail.
835	>	* threadRecordFailure) any AssertionError thrown, so that the
836	>	* current testcase will fail.
837		*/
838		public void threadAssertNull(Object x) {
839		try {
840		assertNull(x);
841	<	} catch (AssertionFailedError t) {
842	<	threadRecordFailure(t);
843	<	throw t;
841	>	} catch (AssertionError fail) {
842	>	threadRecordFailure(fail);
843	>	throw fail;
844		}
845		}
846
847		/**
848		* Just like assertEquals(x, y), but additionally recording (using
849	<	* threadRecordFailure) any AssertionFailedError thrown, so that
850	<	* the current testcase will fail.
849	>	* threadRecordFailure) any AssertionError thrown, so that the
850	>	* current testcase will fail.
851		*/
852		public void threadAssertEquals(long x, long y) {
853		try {
854		assertEquals(x, y);
855	<	} catch (AssertionFailedError t) {
856	<	threadRecordFailure(t);
857	<	throw t;
855	>	} catch (AssertionError fail) {
856	>	threadRecordFailure(fail);
857	>	throw fail;
858		}
859		}
860
861		/**
862		* Just like assertEquals(x, y), but additionally recording (using
863	<	* threadRecordFailure) any AssertionFailedError thrown, so that
864	<	* the current testcase will fail.
863	>	* threadRecordFailure) any AssertionError thrown, so that the
864	>	* current testcase will fail.
865		*/
866		public void threadAssertEquals(Object x, Object y) {
867		try {
868		assertEquals(x, y);
869	<	} catch (AssertionFailedError fail) {
869	>	} catch (AssertionError fail) {
870		threadRecordFailure(fail);
871		throw fail;
872		} catch (Throwable fail) {
#	Line 660 | Line 876 | public class JSR166TestCase extends Test
876
877		/**
878		* Just like assertSame(x, y), 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 threadAssertSame(Object x, Object y) {
883		try {
884		assertSame(x, y);
885	<	} catch (AssertionFailedError fail) {
885	>	} catch (AssertionError fail) {
886		threadRecordFailure(fail);
887		throw fail;
888		}
#	Line 688 | Line 904 | public class JSR166TestCase extends Test
904
905		/**
906		* Records the given exception using {@link #threadRecordFailure},
907	<	* then rethrows the exception, wrapping it in an
908	<	* AssertionFailedError if necessary.
907	>	* then rethrows the exception, wrapping it in an AssertionError
908	>	* if necessary.
909		*/
910		public void threadUnexpectedException(Throwable t) {
911		threadRecordFailure(t);
#	Line 698 | Line 914 | public class JSR166TestCase extends Test
914		throw (RuntimeException) t;
915		else if (t instanceof Error)
916		throw (Error) t;
917	<	else {
918	<	AssertionFailedError afe =
703	<	new AssertionFailedError("unexpected exception: " + t);
704	<	afe.initCause(t);
705	<	throw afe;
706	<	}
917	>	else
918	>	throw new AssertionError("unexpected exception: " + t, t);
919		}
920
921		/**
922		* Delays, via Thread.sleep, for the given millisecond delay, but
923		* if the sleep is shorter than specified, may re-sleep or yield
924	<	* until time elapses.
924	>	* until time elapses.  Ensures that the given time, as measured
925	>	* by System.nanoTime(), has elapsed.
926		*/
927		static void delay(long millis) throws InterruptedException {
928	<	long startTime = System.nanoTime();
929	<	long ns = millis * 1000 * 1000;
930	<	for (;;) {
928	>	long nanos = millis * (1000 * 1000);
929	>	final long wakeupTime = System.nanoTime() + nanos;
930	>	do {
931		if (millis > 0L)
932		Thread.sleep(millis);
933		else // too short to sleep
934		Thread.yield();
935	<	long d = ns - (System.nanoTime() - startTime);
936	<	if (d > 0L)
937	<	millis = d / (1000 * 1000);
938	<	else
939	<	break;
935	>	nanos = wakeupTime - System.nanoTime();
936	>	millis = nanos / (1000 * 1000);
937	>	} while (nanos >= 0L);
938	>	}
939	>
940	>	/**
941	>	* Allows use of try-with-resources with per-test thread pools.
942	>	*/
943	>	class PoolCleaner implements AutoCloseable {
944	>	private final ExecutorService pool;
945	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
946	>	public void close() { joinPool(pool); }
947	>	}
948	>
949	>	/**
950	>	* An extension of PoolCleaner that has an action to release the pool.
951	>	*/
952	>	class PoolCleanerWithReleaser extends PoolCleaner {
953	>	private final Runnable releaser;
954	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
955	>	super(pool);
956	>	this.releaser = releaser;
957	>	}
958	>	public void close() {
959	>	try {
960	>	releaser.run();
961	>	} finally {
962	>	super.close();
963	>	}
964		}
965		}
966
967	+	PoolCleaner cleaner(ExecutorService pool) {
968	+	return new PoolCleaner(pool);
969	+	}
970	+
971	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
972	+	return new PoolCleanerWithReleaser(pool, releaser);
973	+	}
974	+
975	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
976	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
977	+	}
978	+
979	+	Runnable releaser(final CountDownLatch latch) {
980	+	return new Runnable() { public void run() {
981	+	do { latch.countDown(); }
982	+	while (latch.getCount() > 0);
983	+	}};
984	+	}
985	+
986	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
987	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
988	+	}
989	+
990	+	Runnable releaser(final AtomicBoolean flag) {
991	+	return new Runnable() { public void run() { flag.set(true); }};
992	+	}
993	+
994		/**
995		* Waits out termination of a thread pool or fails doing so.
996		*/
997		void joinPool(ExecutorService pool) {
998		try {
999		pool.shutdown();
1000	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1001	<	fail("ExecutorService " + pool +
1002	<	" did not terminate in a timely manner");
1000	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1001	>	try {
1002	>	threadFail("ExecutorService " + pool +
1003	>	" did not terminate in a timely manner");
1004	>	} finally {
1005	>	// last resort, for the benefit of subsequent tests
1006	>	pool.shutdownNow();
1007	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1008	>	}
1009	>	}
1010		} catch (SecurityException ok) {
1011		// Allowed in case test doesn't have privs
1012		} catch (InterruptedException fail) {
1013	<	fail("Unexpected InterruptedException");
1013	>	threadFail("Unexpected InterruptedException");
1014		}
1015		}
1016
1017	<	/** Like Runnable, but with the freedom to throw anything */
1017	>	/**
1018	>	* Like Runnable, but with the freedom to throw anything.
1019	>	* junit folks had the same idea:
1020	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1021	>	*/
1022		interface Action { public void run() throws Throwable; }
1023
1024		/**
#	Line 753 | Line 1028 | public class JSR166TestCase extends Test
1028		*/
1029		void testInParallel(Action ... actions) {
1030		ExecutorService pool = Executors.newCachedThreadPool();
1031	<	try {
1031	>	try (PoolCleaner cleaner = cleaner(pool)) {
1032		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1033		for (final Action action : actions)
1034		futures.add(pool.submit(new CheckedRunnable() {
#	Line 766 | Line 1041 | public class JSR166TestCase extends Test
1041		} catch (Exception ex) {
1042		threadUnexpectedException(ex);
1043		}
769	–	} finally {
770	–	joinPool(pool);
1044		}
1045		}
1046
1047		/**
1048	<	* A debugging tool to print all stack traces, as jstack does.
1049	<	*/
777	<	static void printAllStackTraces() {
778	<	for (ThreadInfo info :
779	<	ManagementFactory.getThreadMXBean()
780	<	.dumpAllThreads(true, true))
781	<	System.err.print(info);
782	<	}
783	<
784	<	/**
785	<	* Checks that thread does not terminate within the default
786	<	* millisecond delay of {@code timeoutMillis()}.
1048	>	* A debugging tool to print stack traces of most threads, as jstack does.
1049	>	* Uninteresting threads are filtered out.
1050		*/
1051	<	void assertThreadStaysAlive(Thread thread) {
1052	<	assertThreadStaysAlive(thread, timeoutMillis());
1053	<	}
1051	>	static void dumpTestThreads() {
1052	>	SecurityManager sm = System.getSecurityManager();
1053	>	if (sm != null) {
1054	>	try {
1055	>	System.setSecurityManager(null);
1056	>	} catch (SecurityException giveUp) {
1057	>	return;
1058	>	}
1059	>	}
1060
1061	<	/**
1062	<	* Checks that thread does not terminate within the given millisecond delay.
1063	<	*/
1064	<	void assertThreadStaysAlive(Thread thread, long millis) {
1065	<	try {
1066	<	// No need to optimize the failing case via Thread.join.
1067	<	delay(millis);
1068	<	assertTrue(thread.isAlive());
1069	<	} catch (InterruptedException fail) {
1070	<	fail("Unexpected InterruptedException");
1061	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1062	>	System.err.println("------ stacktrace dump start ------");
1063	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1064	>	final String name = info.getThreadName();
1065	>	String lockName;
1066	>	if ("Signal Dispatcher".equals(name))
1067	>	continue;
1068	>	if ("Reference Handler".equals(name)
1069	>	&& (lockName = info.getLockName()) != null
1070	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1071	>	continue;
1072	>	if ("Finalizer".equals(name)
1073	>	&& (lockName = info.getLockName()) != null
1074	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1075	>	continue;
1076	>	if ("checkForWedgedTest".equals(name))
1077	>	continue;
1078	>	System.err.print(info);
1079		}
1080	<	}
1080	>	System.err.println("------ stacktrace dump end ------");
1081
1082	<	/**
806	<	* Checks that the threads do not terminate within the default
807	<	* millisecond delay of {@code timeoutMillis()}.
808	<	*/
809	<	void assertThreadsStayAlive(Thread... threads) {
810	<	assertThreadsStayAlive(timeoutMillis(), threads);
1082	>	if (sm != null) System.setSecurityManager(sm);
1083		}
1084
1085		/**
1086	<	* Checks that the threads do not terminate within the given millisecond delay.
1086	>	* Checks that thread eventually enters the expected blocked thread state.
1087		*/
1088	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1089	<	try {
1090	<	// No need to optimize the failing case via Thread.join.
1091	<	delay(millis);
1092	<	for (Thread thread : threads)
1093	<	assertTrue(thread.isAlive());
1094	<	} catch (InterruptedException fail) {
1095	<	fail("Unexpected InterruptedException");
1088	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1089	>	// always sleep at least 1 ms, with high probability avoiding
1090	>	// transitory states
1091	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1092	>	try { delay(1); }
1093	>	catch (InterruptedException fail) {
1094	>	throw new AssertionError("Unexpected InterruptedException", fail);
1095	>	}
1096	>	Thread.State s = thread.getState();
1097	>	if (s == expected)
1098	>	return;
1099	>	else if (s == Thread.State.TERMINATED)
1100	>	fail("Unexpected thread termination");
1101		}
1102	+	fail("timed out waiting for thread to enter thread state " + expected);
1103		}
1104
1105		/**
#	Line 862 | Line 1140 | public class JSR166TestCase extends Test
1140		}
1141
1142		/**
1143	+	* The maximum number of consecutive spurious wakeups we should
1144	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1145	+	*/
1146	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1147	+
1148	+	/**
1149		* The number of elements to place in collections, arrays, etc.
1150		*/
1151		public static final int SIZE = 20;
#	Line 965 | Line 1249 | public class JSR166TestCase extends Test
1249		}
1250		public void refresh() {}
1251		public String toString() {
1252	<	List<Permission> ps = new ArrayList<Permission>();
1252	>	List<Permission> ps = new ArrayList<>();
1253		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1254		ps.add(e.nextElement());
1255		return "AdjustablePolicy with permissions " + ps;
#	Line 993 | Line 1277 | public class JSR166TestCase extends Test
1277
1278		/**
1279		* Sleeps until the given time has elapsed.
1280	<	* Throws AssertionFailedError if interrupted.
1280	>	* Throws AssertionError if interrupted.
1281		*/
1282	<	void sleep(long millis) {
1282	>	static void sleep(long millis) {
1283		try {
1284		delay(millis);
1285		} catch (InterruptedException fail) {
1286	<	AssertionFailedError afe =
1003	<	new AssertionFailedError("Unexpected InterruptedException");
1004	<	afe.initCause(fail);
1005	<	throw afe;
1286	>	throw new AssertionError("Unexpected InterruptedException", fail);
1287		}
1288		}
1289
#	Line 1011 | Line 1292 | public class JSR166TestCase extends Test
1292		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1293		*/
1294		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1295	<	long startTime = System.nanoTime();
1295	>	long startTime = 0L;
1296		for (;;) {
1297		Thread.State s = thread.getState();
1298		if (s == Thread.State.BLOCKED ||
#	Line 1020 | Line 1301 | public class JSR166TestCase extends Test
1301		return;
1302		else if (s == Thread.State.TERMINATED)
1303		fail("Unexpected thread termination");
1304	+	else if (startTime == 0L)
1305	+	startTime = System.nanoTime();
1306		else if (millisElapsedSince(startTime) > timeoutMillis) {
1307		threadAssertTrue(thread.isAlive());
1308	<	return;
1308	>	fail("timed out waiting for thread to enter wait state");
1309		}
1310		Thread.yield();
1311		}
1312		}
1313
1314		/**
1315	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1316	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1315	>	* Spin-waits up to the specified number of milliseconds for the given
1316	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1317	>	* and additionally satisfy the given condition.
1318	>	*/
1319	>	void waitForThreadToEnterWaitState(
1320	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1321	>	long startTime = 0L;
1322	>	for (;;) {
1323	>	Thread.State s = thread.getState();
1324	>	if (s == Thread.State.BLOCKED ||
1325	>	s == Thread.State.WAITING ||
1326	>	s == Thread.State.TIMED_WAITING) {
1327	>	try {
1328	>	if (waitingForGodot.call())
1329	>	return;
1330	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1331	>	}
1332	>	else if (s == Thread.State.TERMINATED)
1333	>	fail("Unexpected thread termination");
1334	>	else if (startTime == 0L)
1335	>	startTime = System.nanoTime();
1336	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1337	>	threadAssertTrue(thread.isAlive());
1338	>	fail("timed out waiting for thread to enter wait state");
1339	>	}
1340	>	Thread.yield();
1341	>	}
1342	>	}
1343	>
1344	>	/**
1345	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1346	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1347		*/
1348		void waitForThreadToEnterWaitState(Thread thread) {
1349		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1350		}
1351
1352		/**
1353	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1354	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1355	+	* and additionally satisfy the given condition.
1356	+	*/
1357	+	void waitForThreadToEnterWaitState(
1358	+	Thread thread, Callable<Boolean> waitingForGodot) {
1359	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1360	+	}
1361	+
1362	+	/**
1363		* Returns the number of milliseconds since time given by
1364		* startNanoTime, which must have been previously returned from a
1365		* call to {@link System#nanoTime()}.
#	Line 1051 | Line 1374 | public class JSR166TestCase extends Test
1374		//             r.run();
1375		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1376		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1377	<	//             throw new AssertionFailedError("did not return promptly");
1377	>	//             throw new AssertionError("did not return promptly");
1378		//     }
1379
1380		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1068 | Line 1391 | public class JSR166TestCase extends Test
1391		assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1392		} catch (Throwable fail) { threadUnexpectedException(fail); }
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 1098 | 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 1126 | Line 1449 | public class JSR166TestCase extends Test
1449		}
1450		}
1451
1129	–	public abstract class RunnableShouldThrow implements Runnable {
1130	–	protected abstract void realRun() throws Throwable;
1131	–
1132	–	final Class<?> exceptionClass;
1133	–
1134	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1135	–	this.exceptionClass = exceptionClass;
1136	–	}
1137	–
1138	–	public final void run() {
1139	–	try {
1140	–	realRun();
1141	–	threadShouldThrow(exceptionClass.getSimpleName());
1142	–	} catch (Throwable t) {
1143	–	if (! exceptionClass.isInstance(t))
1144	–	threadUnexpectedException(t);
1145	–	}
1146	–	}
1147	–	}
1148	–
1452		public abstract class ThreadShouldThrow extends Thread {
1453		protected abstract void realRun() throws Throwable;
1454
#	Line 1223 | Line 1526 | public class JSR166TestCase extends Test
1526		public static final String TEST_STRING = "a test string";
1527
1528		public static class StringTask implements Callable<String> {
1529	<	public String call() { return TEST_STRING; }
1529	>	final String value;
1530	>	public StringTask() { this(TEST_STRING); }
1531	>	public StringTask(String value) { this.value = value; }
1532	>	public String call() { return value; }
1533		}
1534
1535		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 1236 | Line 1542 | public class JSR166TestCase extends Test
1542		}};
1543		}
1544
1545	<	public Runnable awaiter(final CountDownLatch latch) {
1545	>	public Runnable countDowner(final CountDownLatch latch) {
1546		return new CheckedRunnable() {
1547		public void realRun() throws InterruptedException {
1548	<	await(latch);
1548	>	latch.countDown();
1549		}};
1550		}
1551
1552	<	public void await(CountDownLatch latch) {
1552	>	class LatchAwaiter extends CheckedRunnable {
1553	>	static final int NEW = 0;
1554	>	static final int RUNNING = 1;
1555	>	static final int DONE = 2;
1556	>	final CountDownLatch latch;
1557	>	int state = NEW;
1558	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1559	>	public void realRun() throws InterruptedException {
1560	>	state = 1;
1561	>	await(latch);
1562	>	state = 2;
1563	>	}
1564	>	}
1565	>
1566	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1567	>	return new LatchAwaiter(latch);
1568	>	}
1569	>
1570	>	public void await(CountDownLatch latch, long timeoutMillis) {
1571		try {
1572	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1572	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1573	>	fail("timed out waiting for CountDownLatch for "
1574	>	+ (timeoutMillis/1000) + " sec");
1575		} catch (Throwable fail) {
1576		threadUnexpectedException(fail);
1577		}
1578		}
1579
1580	+	public void await(CountDownLatch latch) {
1581	+	await(latch, LONG_DELAY_MS);
1582	+	}
1583	+
1584		public void await(Semaphore semaphore) {
1585		try {
1586	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1586	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1587	>	fail("timed out waiting for Semaphore for "
1588	>	+ (LONG_DELAY_MS/1000) + " sec");
1589	>	} catch (Throwable fail) {
1590	>	threadUnexpectedException(fail);
1591	>	}
1592	>	}
1593	>
1594	>	public void await(CyclicBarrier barrier) {
1595	>	try {
1596	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1597		} catch (Throwable fail) {
1598		threadUnexpectedException(fail);
1599		}
#	Line 1273 | Line 1613 | public class JSR166TestCase extends Test
1613		//         long startTime = System.nanoTime();
1614		//         while (!flag.get()) {
1615		//             if (millisElapsedSince(startTime) > timeoutMillis)
1616	<	//                 throw new AssertionFailedError("timed out");
1616	>	//                 throw new AssertionError("timed out");
1617		//             Thread.yield();
1618		//         }
1619		//     }
#	Line 1282 | Line 1622 | public class JSR166TestCase extends Test
1622		public String call() { throw new NullPointerException(); }
1623		}
1624
1285	–	public static class CallableOne implements Callable<Integer> {
1286	–	public Integer call() { return one; }
1287	–	}
1288	–
1289	–	public class ShortRunnable extends CheckedRunnable {
1290	–	protected void realRun() throws Throwable {
1291	–	delay(SHORT_DELAY_MS);
1292	–	}
1293	–	}
1294	–
1295	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1296	–	protected void realRun() throws InterruptedException {
1297	–	delay(SHORT_DELAY_MS);
1298	–	}
1299	–	}
1300	–
1301	–	public class SmallRunnable extends CheckedRunnable {
1302	–	protected void realRun() throws Throwable {
1303	–	delay(SMALL_DELAY_MS);
1304	–	}
1305	–	}
1306	–
1625		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1626		protected void realRun() {
1627		try {
#	Line 1312 | Line 1630 | public class JSR166TestCase extends Test
1630		}
1631		}
1632
1315	–	public class SmallCallable extends CheckedCallable {
1316	–	protected Object realCall() throws InterruptedException {
1317	–	delay(SMALL_DELAY_MS);
1318	–	return Boolean.TRUE;
1319	–	}
1320	–	}
1321	–
1322	–	public class MediumRunnable extends CheckedRunnable {
1323	–	protected void realRun() throws Throwable {
1324	–	delay(MEDIUM_DELAY_MS);
1325	–	}
1326	–	}
1327	–
1328	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1329	–	protected void realRun() throws InterruptedException {
1330	–	delay(MEDIUM_DELAY_MS);
1331	–	}
1332	–	}
1333	–
1633		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1634		return new CheckedRunnable() {
1635		protected void realRun() {
#	Line 1340 | Line 1639 | public class JSR166TestCase extends Test
1639		}};
1640		}
1641
1343	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1344	–	protected void realRun() {
1345	–	try {
1346	–	delay(MEDIUM_DELAY_MS);
1347	–	} catch (InterruptedException ok) {}
1348	–	}
1349	–	}
1350	–
1351	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1352	–	protected void realRun() {
1353	–	try {
1354	–	delay(LONG_DELAY_MS);
1355	–	} catch (InterruptedException ok) {}
1356	–	}
1357	–	}
1358	–
1642		/**
1643		* For use as ThreadFactory in constructors
1644		*/
#	Line 1369 | Line 1652 | public class JSR166TestCase extends Test
1652		boolean isDone();
1653		}
1654
1372	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1373	–	return new TrackedRunnable() {
1374	–	private volatile boolean done = false;
1375	–	public boolean isDone() { return done; }
1376	–	public void run() {
1377	–	try {
1378	–	delay(timeoutMillis);
1379	–	done = true;
1380	–	} catch (InterruptedException ok) {}
1381	–	}
1382	–	};
1383	–	}
1384	–
1385	–	public static class TrackedShortRunnable implements Runnable {
1386	–	public volatile boolean done = false;
1387	–	public void run() {
1388	–	try {
1389	–	delay(SHORT_DELAY_MS);
1390	–	done = true;
1391	–	} catch (InterruptedException ok) {}
1392	–	}
1393	–	}
1394	–
1395	–	public static class TrackedSmallRunnable implements Runnable {
1396	–	public volatile boolean done = false;
1397	–	public void run() {
1398	–	try {
1399	–	delay(SMALL_DELAY_MS);
1400	–	done = true;
1401	–	} catch (InterruptedException ok) {}
1402	–	}
1403	–	}
1404	–
1405	–	public static class TrackedMediumRunnable implements Runnable {
1406	–	public volatile boolean done = false;
1407	–	public void run() {
1408	–	try {
1409	–	delay(MEDIUM_DELAY_MS);
1410	–	done = true;
1411	–	} catch (InterruptedException ok) {}
1412	–	}
1413	–	}
1414	–
1415	–	public static class TrackedLongRunnable implements Runnable {
1416	–	public volatile boolean done = false;
1417	–	public void run() {
1418	–	try {
1419	–	delay(LONG_DELAY_MS);
1420	–	done = true;
1421	–	} catch (InterruptedException ok) {}
1422	–	}
1423	–	}
1424	–
1655		public static class TrackedNoOpRunnable implements Runnable {
1656		public volatile boolean done = false;
1657		public void run() {
#	Line 1429 | Line 1659 | public class JSR166TestCase extends Test
1659		}
1660		}
1661
1432	–	public static class TrackedCallable implements Callable {
1433	–	public volatile boolean done = false;
1434	–	public Object call() {
1435	–	try {
1436	–	delay(SMALL_DELAY_MS);
1437	–	done = true;
1438	–	} catch (InterruptedException ok) {}
1439	–	return Boolean.TRUE;
1440	–	}
1441	–	}
1442	–
1662		/**
1663		* Analog of CheckedRunnable for RecursiveAction
1664		*/
#	Line 1481 | Line 1700 | public class JSR166TestCase extends Test
1700
1701		/**
1702		* A CyclicBarrier that uses timed await and fails with
1703	<	* AssertionFailedErrors instead of throwing checked exceptions.
1703	>	* AssertionErrors instead of throwing checked exceptions.
1704		*/
1705	<	public class CheckedBarrier extends CyclicBarrier {
1705	>	public static class CheckedBarrier extends CyclicBarrier {
1706		public CheckedBarrier(int parties) { super(parties); }
1707
1708		public int await() {
1709		try {
1710		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1711		} catch (TimeoutException timedOut) {
1712	<	throw new AssertionFailedError("timed out");
1712	>	throw new AssertionError("timed out");
1713		} catch (Exception fail) {
1714	<	AssertionFailedError afe =
1496	<	new AssertionFailedError("Unexpected exception: " + fail);
1497	<	afe.initCause(fail);
1498	<	throw afe;
1714	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1715		}
1716		}
1717		}
#	Line 1506 | Line 1722 | public class JSR166TestCase extends Test
1722		assertEquals(0, q.size());
1723		assertNull(q.peek());
1724		assertNull(q.poll());
1725	<	assertNull(q.poll(0, MILLISECONDS));
1725	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1726		assertEquals(q.toString(), "[]");
1727		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1728		assertFalse(q.iterator().hasNext());
#	Line 1547 | Line 1763 | public class JSR166TestCase extends Test
1763		}
1764		}
1765
1766	+	void assertImmutable(final Object o) {
1767	+	if (o instanceof Collection) {
1768	+	assertThrows(
1769	+	UnsupportedOperationException.class,
1770	+	new Runnable() { public void run() {
1771	+	((Collection) o).add(null);}});
1772	+	}
1773	+	}
1774	+
1775		@SuppressWarnings("unchecked")
1776		<T> T serialClone(T o) {
1777		try {
1778		ObjectInputStream ois = new ObjectInputStream
1779		(new ByteArrayInputStream(serialBytes(o)));
1780		T clone = (T) ois.readObject();
1781	+	if (o == clone) assertImmutable(o);
1782		assertSame(o.getClass(), clone.getClass());
1783		return clone;
1784		} catch (Throwable fail) {
#	Line 1561 | Line 1787 | public class JSR166TestCase extends Test
1787		}
1788		}
1789
1790	+	/**
1791	+	* A version of serialClone that leaves error handling (for
1792	+	* e.g. NotSerializableException) up to the caller.
1793	+	*/
1794	+	@SuppressWarnings("unchecked")
1795	+	<T> T serialClonePossiblyFailing(T o)
1796	+	throws ReflectiveOperationException, java.io.IOException {
1797	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1798	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1799	+	oos.writeObject(o);
1800	+	oos.flush();
1801	+	oos.close();
1802	+	ObjectInputStream ois = new ObjectInputStream
1803	+	(new ByteArrayInputStream(bos.toByteArray()));
1804	+	T clone = (T) ois.readObject();
1805	+	if (o == clone) assertImmutable(o);
1806	+	assertSame(o.getClass(), clone.getClass());
1807	+	return clone;
1808	+	}
1809	+
1810	+	/**
1811	+	* If o implements Cloneable and has a public clone method,
1812	+	* returns a clone of o, else null.
1813	+	*/
1814	+	@SuppressWarnings("unchecked")
1815	+	<T> T cloneableClone(T o) {
1816	+	if (!(o instanceof Cloneable)) return null;
1817	+	final T clone;
1818	+	try {
1819	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1820	+	} catch (NoSuchMethodException ok) {
1821	+	return null;
1822	+	} catch (ReflectiveOperationException unexpected) {
1823	+	throw new Error(unexpected);
1824	+	}
1825	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1826	+	assertSame(o.getClass(), clone.getClass());
1827	+	return clone;
1828	+	}
1829	+
1830		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1831		Runnable... throwingActions) {
1832		for (Runnable throwingAction : throwingActions) {
#	Line 1568 | Line 1834 | public class JSR166TestCase extends Test
1834		try { throwingAction.run(); }
1835		catch (Throwable t) {
1836		threw = true;
1837	<	if (!expectedExceptionClass.isInstance(t)) {
1838	<	AssertionFailedError afe =
1839	<	new AssertionFailedError
1840	<	("Expected " + expectedExceptionClass.getName() +
1841	<	", got " + t.getClass().getName());
1576	<	afe.initCause(t);
1577	<	threadUnexpectedException(afe);
1578	<	}
1837	>	if (!expectedExceptionClass.isInstance(t))
1838	>	throw new AssertionError(
1839	>	"Expected " + expectedExceptionClass.getName() +
1840	>	", got " + t.getClass().getName(),
1841	>	t);
1842		}
1843		if (!threw)
1844		shouldThrow(expectedExceptionClass.getName());
#	Line 1589 | Line 1852 | public class JSR166TestCase extends Test
1852		} catch (NoSuchElementException success) {}
1853		assertFalse(it.hasNext());
1854		}
1855	+
1856	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1857	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1858	+	}
1859	+
1860	+	public Runnable runnableThrowing(final RuntimeException ex) {
1861	+	return new Runnable() { public void run() { throw ex; }};
1862	+	}
1863	+
1864	+	/** A reusable thread pool to be shared by tests. */
1865	+	static final ExecutorService cachedThreadPool =
1866	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1867	+	1000L, MILLISECONDS,
1868	+	new SynchronousQueue<Runnable>());
1869	+
1870	+	static <T> void shuffle(T[] array) {
1871	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1872	+	}
1873	+
1874	+	/**
1875	+	* Returns the same String as would be returned by {@link
1876	+	* Object#toString}, whether or not the given object's class
1877	+	* overrides toString().
1878	+	*
1879	+	* @see System#identityHashCode
1880	+	*/
1881	+	static String identityString(Object x) {
1882	+	return x.getClass().getName()
1883	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1884	+	}
1885	+
1886	+	// --- Shared assertions for Executor tests ---
1887	+
1888	+	/**
1889	+	* Returns maximum number of tasks that can be submitted to given
1890	+	* pool (with bounded queue) before saturation (when submission
1891	+	* throws RejectedExecutionException).
1892	+	*/
1893	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1894	+	BlockingQueue<Runnable> q = pool.getQueue();
1895	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1896	+	}
1897	+
1898	+	@SuppressWarnings("FutureReturnValueIgnored")
1899	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1900	+	try {
1901	+	e.execute((Runnable) null);
1902	+	shouldThrow();
1903	+	} catch (NullPointerException success) {}
1904	+
1905	+	if (! (e instanceof ExecutorService)) return;
1906	+	ExecutorService es = (ExecutorService) e;
1907	+	try {
1908	+	es.submit((Runnable) null);
1909	+	shouldThrow();
1910	+	} catch (NullPointerException success) {}
1911	+	try {
1912	+	es.submit((Runnable) null, Boolean.TRUE);
1913	+	shouldThrow();
1914	+	} catch (NullPointerException success) {}
1915	+	try {
1916	+	es.submit((Callable) null);
1917	+	shouldThrow();
1918	+	} catch (NullPointerException success) {}
1919	+
1920	+	if (! (e instanceof ScheduledExecutorService)) return;
1921	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1922	+	try {
1923	+	ses.schedule((Runnable) null,
1924	+	randomTimeout(), randomTimeUnit());
1925	+	shouldThrow();
1926	+	} catch (NullPointerException success) {}
1927	+	try {
1928	+	ses.schedule((Callable) null,
1929	+	randomTimeout(), randomTimeUnit());
1930	+	shouldThrow();
1931	+	} catch (NullPointerException success) {}
1932	+	try {
1933	+	ses.scheduleAtFixedRate((Runnable) null,
1934	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1935	+	shouldThrow();
1936	+	} catch (NullPointerException success) {}
1937	+	try {
1938	+	ses.scheduleWithFixedDelay((Runnable) null,
1939	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1940	+	shouldThrow();
1941	+	} catch (NullPointerException success) {}
1942	+	}
1943	+
1944	+	void setRejectedExecutionHandler(
1945	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1946	+	p.setRejectedExecutionHandler(handler);
1947	+	assertSame(handler, p.getRejectedExecutionHandler());
1948	+	}
1949	+
1950	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1951	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1952	+	final long savedTaskCount = p.getTaskCount();
1953	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1954	+	final int savedQueueSize = p.getQueue().size();
1955	+	final boolean stock = (p.getClass().getClassLoader() == null);
1956	+
1957	+	Runnable r = () -> {};
1958	+	Callable<Boolean> c = () -> Boolean.TRUE;
1959	+
1960	+	class Recorder implements RejectedExecutionHandler {
1961	+	public volatile Runnable r = null;
1962	+	public volatile ThreadPoolExecutor p = null;
1963	+	public void reset() { r = null; p = null; }
1964	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1965	+	assertNull(this.r);
1966	+	assertNull(this.p);
1967	+	this.r = r;
1968	+	this.p = p;
1969	+	}
1970	+	}
1971	+
1972	+	// check custom handler is invoked exactly once per task
1973	+	Recorder recorder = new Recorder();
1974	+	setRejectedExecutionHandler(p, recorder);
1975	+	for (int i = 2; i--> 0; ) {
1976	+	recorder.reset();
1977	+	p.execute(r);
1978	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1979	+	assertSame(r, recorder.r);
1980	+	assertSame(p, recorder.p);
1981	+
1982	+	recorder.reset();
1983	+	assertFalse(p.submit(r).isDone());
1984	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1985	+	assertSame(p, recorder.p);
1986	+
1987	+	recorder.reset();
1988	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1989	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1990	+	assertSame(p, recorder.p);
1991	+
1992	+	recorder.reset();
1993	+	assertFalse(p.submit(c).isDone());
1994	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1995	+	assertSame(p, recorder.p);
1996	+
1997	+	if (p instanceof ScheduledExecutorService) {
1998	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1999	+	ScheduledFuture<?> future;
2000	+
2001	+	recorder.reset();
2002	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2003	+	assertFalse(future.isDone());
2004	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2005	+	assertSame(p, recorder.p);
2006	+
2007	+	recorder.reset();
2008	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2009	+	assertFalse(future.isDone());
2010	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2011	+	assertSame(p, recorder.p);
2012	+
2013	+	recorder.reset();
2014	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2015	+	assertFalse(future.isDone());
2016	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2017	+	assertSame(p, recorder.p);
2018	+
2019	+	recorder.reset();
2020	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2021	+	assertFalse(future.isDone());
2022	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2023	+	assertSame(p, recorder.p);
2024	+	}
2025	+	}
2026	+
2027	+	// Checking our custom handler above should be sufficient, but
2028	+	// we add some integration tests of standard handlers.
2029	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2030	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2031	+
2032	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2033	+	try {
2034	+	p.execute(setThread);
2035	+	shouldThrow();
2036	+	} catch (RejectedExecutionException success) {}
2037	+	assertNull(thread.get());
2038	+
2039	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2040	+	p.execute(setThread);
2041	+	assertNull(thread.get());
2042	+
2043	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2044	+	p.execute(setThread);
2045	+	if (p.isShutdown())
2046	+	assertNull(thread.get());
2047	+	else
2048	+	assertSame(Thread.currentThread(), thread.get());
2049	+
2050	+	setRejectedExecutionHandler(p, savedHandler);
2051	+
2052	+	// check that pool was not perturbed by handlers
2053	+	assertEquals(savedTaskCount, p.getTaskCount());
2054	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2055	+	assertEquals(savedQueueSize, p.getQueue().size());
2056	+	}
2057	+
2058	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2059	+	assertEquals(x, y);
2060	+	assertEquals(y, x);
2061	+	assertEquals(x.isEmpty(), y.isEmpty());
2062	+	assertEquals(x.size(), y.size());
2063	+	if (x instanceof List) {
2064	+	assertEquals(x.toString(), y.toString());
2065	+	}
2066	+	if (x instanceof List || x instanceof Set) {
2067	+	assertEquals(x.hashCode(), y.hashCode());
2068	+	}
2069	+	if (x instanceof List || x instanceof Deque) {
2070	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2071	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2072	+	y.toArray(new Object[0])));
2073	+	}
2074	+	}
2075	+
2076	+	/**
2077	+	* A weaker form of assertCollectionsEquals which does not insist
2078	+	* that the two collections satisfy Object#equals(Object), since
2079	+	* they may use identity semantics as Deques do.
2080	+	*/
2081	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2082	+	if (x instanceof List || x instanceof Set)
2083	+	assertCollectionsEquals(x, y);
2084	+	else {
2085	+	assertEquals(x.isEmpty(), y.isEmpty());
2086	+	assertEquals(x.size(), y.size());
2087	+	assertEquals(new HashSet(x), new HashSet(y));
2088	+	if (x instanceof Deque) {
2089	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2090	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2091	+	y.toArray(new Object[0])));
2092	+	}
2093	+	}
2094	+	}
2095		}

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