ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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 1.237 by jsr166, Wed Aug 23 05:33:00 2017 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
2	>	* Written by Doug Lea and Martin Buchholz with assistance from
3	>	* members of JCP JSR-166 Expert Group and released to the public
4	>	* domain, as explained at
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		* Other contributors include Andrew Wright, Jeffrey Hayes,
7		* Pat Fisher, Mike Judd.
8		*/
9
10	+	/*
11	+	* @test
12	+	* @summary JSR-166 tck tests, in a number of variations.
13	+	*          The first is the conformance testing variant,
14	+	*          while others also test implementation details.
15	+	* @build *
16	+	* @modules java.management
17	+	* @run junit/othervm/timeout=1000 JSR166TestCase
18	+	* @run junit/othervm/timeout=1000
19	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
20	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
21	+	*      -Djsr166.testImplementationDetails=true
22	+	*      JSR166TestCase
23	+	* @run junit/othervm/timeout=1000
24	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
25	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
26	+	*      -Djsr166.testImplementationDetails=true
27	+	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
28	+	*      JSR166TestCase
29	+	* @run junit/othervm/timeout=1000
30	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
31	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
32	+	*      -Djsr166.testImplementationDetails=true
33	+	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
34	+	*      -Djava.util.secureRandomSeed=true
35	+	*      JSR166TestCase
36	+	* @run junit/othervm/timeout=1000/policy=tck.policy
37	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
38	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
39	+	*      -Djsr166.testImplementationDetails=true
40	+	*      JSR166TestCase
41	+	*/
42	+
43		import static java.util.concurrent.TimeUnit.MILLISECONDS;
44	+	import static java.util.concurrent.TimeUnit.MINUTES;
45		import static java.util.concurrent.TimeUnit.NANOSECONDS;
46
47		import java.io.ByteArrayInputStream;
#	Line 15 | Line 50 | import java.io.ObjectInputStream;
50		import java.io.ObjectOutputStream;
51		import java.lang.management.ManagementFactory;
52		import java.lang.management.ThreadInfo;
53	+	import java.lang.management.ThreadMXBean;
54		import java.lang.reflect.Constructor;
55		import java.lang.reflect.Method;
56		import java.lang.reflect.Modifier;
#	Line 27 | Line 63 | import java.security.ProtectionDomain;
63		import java.security.SecurityPermission;
64		import java.util.ArrayList;
65		import java.util.Arrays;
66	+	import java.util.Collection;
67	+	import java.util.Collections;
68		import java.util.Date;
69		import java.util.Enumeration;
70		import java.util.Iterator;
#	Line 38 | Line 76 | import java.util.concurrent.Callable;
76		import java.util.concurrent.CountDownLatch;
77		import java.util.concurrent.CyclicBarrier;
78		import java.util.concurrent.ExecutionException;
79	+	import java.util.concurrent.Executor;
80		import java.util.concurrent.Executors;
81		import java.util.concurrent.ExecutorService;
82	+	import java.util.concurrent.ForkJoinPool;
83		import java.util.concurrent.Future;
84	+	import java.util.concurrent.FutureTask;
85		import java.util.concurrent.RecursiveAction;
86		import java.util.concurrent.RecursiveTask;
87	+	import java.util.concurrent.RejectedExecutionException;
88		import java.util.concurrent.RejectedExecutionHandler;
89		import java.util.concurrent.Semaphore;
90	+	import java.util.concurrent.ScheduledExecutorService;
91	+	import java.util.concurrent.ScheduledFuture;
92	+	import java.util.concurrent.SynchronousQueue;
93		import java.util.concurrent.ThreadFactory;
94	+	import java.util.concurrent.ThreadLocalRandom;
95		import java.util.concurrent.ThreadPoolExecutor;
96	+	import java.util.concurrent.TimeUnit;
97		import java.util.concurrent.TimeoutException;
98	+	import java.util.concurrent.atomic.AtomicBoolean;
99		import java.util.concurrent.atomic.AtomicReference;
100		import java.util.regex.Pattern;
101
#	Line 67 | Line 115 | import junit.framework.TestSuite;
115		*
116		* <ol>
117		*
118	<	* <li> All assertions in code running in generated threads must use
118	>	* <li>All assertions in code running in generated threads must use
119		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
120		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
121		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
122		* particularly recommended) for other code to use these forms too.
123		* Only the most typically used JUnit assertion methods are defined
124	<	* this way, but enough to live with.</li>
124	>	* this way, but enough to live with.
125		*
126	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
126	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
127		* to invoke {@code super.setUp} and {@code super.tearDown} within
128		* them. These methods are used to clear and check for thread
129	<	* assertion failures.</li>
129	>	* assertion failures.
130		*
131		* <li>All delays and timeouts must use one of the constants {@code
132		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 89 | Line 137 | import junit.framework.TestSuite;
137		* is always discriminable as larger than SHORT and smaller than
138		* MEDIUM.  And so on. These constants are set to conservative values,
139		* but even so, if there is ever any doubt, they can all be increased
140	<	* in one spot to rerun tests on slower platforms.</li>
140	>	* in one spot to rerun tests on slower platforms.
141		*
142	<	* <li> All threads generated must be joined inside each test case
142	>	* <li>All threads generated must be joined inside each test case
143		* method (or {@code fail} to do so) before returning from the
144		* method. The {@code joinPool} method can be used to do this when
145	<	* using Executors.</li>
145	>	* using Executors.
146		*
147		* </ol>
148		*
149		* <p><b>Other notes</b>
150		* <ul>
151		*
152	<	* <li> Usually, there is one testcase method per JSR166 method
152	>	* <li>Usually, there is one testcase method per JSR166 method
153		* covering "normal" operation, and then as many exception-testing
154		* methods as there are exceptions the method can throw. Sometimes
155		* there are multiple tests per JSR166 method when the different
156		* "normal" behaviors differ significantly. And sometimes testcases
157	<	* cover multiple methods when they cannot be tested in
110	<	* isolation.</li>
157	>	* cover multiple methods when they cannot be tested in isolation.
158		*
159	<	* <li> The documentation style for testcases is to provide as javadoc
159	>	* <li>The documentation style for testcases is to provide as javadoc
160		* a simple sentence or two describing the property that the testcase
161		* method purports to test. The javadocs do not say anything about how
162	<	* the property is tested. To find out, read the code.</li>
162	>	* the property is tested. To find out, read the code.
163		*
164	<	* <li> These tests are "conformance tests", and do not attempt to
164	>	* <li>These tests are "conformance tests", and do not attempt to
165		* test throughput, latency, scalability or other performance factors
166		* (see the separate "jtreg" tests for a set intended to check these
167		* for the most central aspects of functionality.) So, most tests use
168		* the smallest sensible numbers of threads, collection sizes, etc
169	<	* needed to check basic conformance.</li>
169	>	* needed to check basic conformance.
170		*
171		* <li>The test classes currently do not declare inclusion in
172		* any particular package to simplify things for people integrating
173	<	* them in TCK test suites.</li>
173	>	* them in TCK test suites.
174		*
175	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
176	<	* runs all JSR166 unit tests.</li>
175	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
176	>	* runs all JSR166 unit tests.
177		*
178		* </ul>
179		*/
#	Line 170 | Line 217 | public class JSR166TestCase extends Test
217		private static final int suiteRuns =
218		Integer.getInteger("jsr166.suiteRuns", 1);
219
220	+	/**
221	+	* Returns the value of the system property, or NaN if not defined.
222	+	*/
223	+	private static float systemPropertyValue(String name) {
224	+	String floatString = System.getProperty(name);
225	+	if (floatString == null)
226	+	return Float.NaN;
227	+	try {
228	+	return Float.parseFloat(floatString);
229	+	} catch (NumberFormatException ex) {
230	+	throw new IllegalArgumentException(
231	+	String.format("Bad float value in system property %s=%s",
232	+	name, floatString));
233	+	}
234	+	}
235	+
236	+	/**
237	+	* The scaling factor to apply to standard delays used in tests.
238	+	* May be initialized from any of:
239	+	* - the "jsr166.delay.factor" system property
240	+	* - the "test.timeout.factor" system property (as used by jtreg)
241	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
242	+	* - hard-coded fuzz factor when using a known slowpoke VM
243	+	*/
244	+	private static final float delayFactor = delayFactor();
245	+
246	+	private static float delayFactor() {
247	+	float x;
248	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
249	+	return x;
250	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
251	+	return x;
252	+	String prop = System.getProperty("java.vm.version");
253	+	if (prop != null && prop.matches(".*debug.*"))
254	+	return 4.0f; // How much slower is fastdebug than product?!
255	+	return 1.0f;
256	+	}
257	+
258		public JSR166TestCase() { super(); }
259		public JSR166TestCase(String name) { super(name); }
260
#	Line 185 | Line 270 | public class JSR166TestCase extends Test
270		return (regex == null) ? null : Pattern.compile(regex);
271		}
272
273	<	protected void runTest() throws Throwable {
273	>	// Instrumentation to debug very rare, but very annoying hung test runs.
274	>	static volatile TestCase currentTestCase;
275	>	// static volatile int currentRun = 0;
276	>	static {
277	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
278	>	// Avoid spurious reports with enormous runsPerTest.
279	>	// A single test case run should never take more than 1 second.
280	>	// But let's cap it at the high end too ...
281	>	final int timeoutMinutes =
282	>	Math.min(15, Math.max(runsPerTest / 60, 1));
283	>	for (TestCase lastTestCase = currentTestCase;;) {
284	>	try { MINUTES.sleep(timeoutMinutes); }
285	>	catch (InterruptedException unexpected) { break; }
286	>	if (lastTestCase == currentTestCase) {
287	>	System.err.printf(
288	>	"Looks like we're stuck running test: %s%n",
289	>	lastTestCase);
290	>	//                     System.err.printf(
291	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
292	>	//                         lastTestCase, currentRun, runsPerTest);
293	>	//                     System.err.println("availableProcessors=" +
294	>	//                         Runtime.getRuntime().availableProcessors());
295	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
296	>	dumpTestThreads();
297	>	// one stack dump is probably enough; more would be spam
298	>	break;
299	>	}
300	>	lastTestCase = currentTestCase;
301	>	}}};
302	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
303	>	thread.setDaemon(true);
304	>	thread.start();
305	>	}
306	>
307	>	//     public static String cpuModel() {
308	>	//         try {
309	>	//             java.util.regex.Matcher matcher
310	>	//               = Pattern.compile("model name\\s*: (.*)")
311	>	//                 .matcher(new String(
312	>	//                     java.nio.file.Files.readAllBytes(
313	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
314	>	//             matcher.find();
315	>	//             return matcher.group(1);
316	>	//         } catch (Exception ex) { return null; }
317	>	//     }
318	>
319	>	public void runBare() throws Throwable {
320	>	currentTestCase = this;
321		if (methodFilter == null
322	<	|| methodFilter.matcher(toString()).find()) {
323	<	for (int i = 0; i < runsPerTest; i++) {
324	<	if (profileTests)
325	<	runTestProfiled();
326	<	else
327	<	super.runTest();
328	<	}
322	>	|| methodFilter.matcher(toString()).find())
323	>	super.runBare();
324	>	}
325	>
326	>	protected void runTest() throws Throwable {
327	>	for (int i = 0; i < runsPerTest; i++) {
328	>	// currentRun = i;
329	>	if (profileTests)
330	>	runTestProfiled();
331	>	else
332	>	super.runTest();
333		}
334		}
335
336		protected void runTestProfiled() throws Throwable {
337	<	// Warmup run, notably to trigger all needed classloading.
338	<	super.runTest();
203	<	long t0 = System.nanoTime();
204	<	try {
337	>	for (int i = 0; i < 2; i++) {
338	>	long startTime = System.nanoTime();
339		super.runTest();
340	<	} finally {
341	<	long elapsedMillis = millisElapsedSince(t0);
342	<	if (elapsedMillis >= profileThreshold)
340	>	long elapsedMillis = millisElapsedSince(startTime);
341	>	if (elapsedMillis < profileThreshold)
342	>	break;
343	>	// Never report first run of any test; treat it as a
344	>	// warmup run, notably to trigger all needed classloading,
345	>	if (i > 0)
346		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
347		}
348		}
#	Line 217 | Line 354 | public class JSR166TestCase extends Test
354		main(suite(), args);
355		}
356
357	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
358	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
359	+	long runTime;
360	+	public void startTest(Test test) {}
361	+	protected void printHeader(long runTime) {
362	+	this.runTime = runTime; // defer printing for later
363	+	}
364	+	protected void printFooter(TestResult result) {
365	+	if (result.wasSuccessful()) {
366	+	getWriter().println("OK (" + result.runCount() + " tests)"
367	+	+ "  Time: " + elapsedTimeAsString(runTime));
368	+	} else {
369	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
370	+	super.printFooter(result);
371	+	}
372	+	}
373	+	}
374	+
375	+	/**
376	+	* Returns a TestRunner that doesn't bother with unnecessary
377	+	* fluff, like printing a "." for each test case.
378	+	*/
379	+	static junit.textui.TestRunner newPithyTestRunner() {
380	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
381	+	runner.setPrinter(new PithyResultPrinter(System.out));
382	+	return runner;
383	+	}
384	+
385		/**
386		* Runs all unit tests in the given test suite.
387		* Actual behavior influenced by jsr166.* system properties.
#	Line 228 | Line 393 | public class JSR166TestCase extends Test
393		System.setSecurityManager(new SecurityManager());
394		}
395		for (int i = 0; i < suiteRuns; i++) {
396	<	TestResult result = junit.textui.TestRunner.run(suite);
396	>	TestResult result = newPithyTestRunner().doRun(suite);
397		if (!result.wasSuccessful())
398		System.exit(1);
399		System.gc();
#	Line 312 | Line 477 | public class JSR166TestCase extends Test
477		AbstractQueuedLongSynchronizerTest.suite(),
478		ArrayBlockingQueueTest.suite(),
479		ArrayDequeTest.suite(),
480	+	ArrayListTest.suite(),
481		AtomicBooleanTest.suite(),
482		AtomicIntegerArrayTest.suite(),
483		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 334 | Line 500 | public class JSR166TestCase extends Test
500		CopyOnWriteArrayListTest.suite(),
501		CopyOnWriteArraySetTest.suite(),
502		CountDownLatchTest.suite(),
503	+	CountedCompleterTest.suite(),
504		CyclicBarrierTest.suite(),
505		DelayQueueTest.suite(),
506		EntryTest.suite(),
#	Line 362 | Line 529 | public class JSR166TestCase extends Test
529		TreeMapTest.suite(),
530		TreeSetTest.suite(),
531		TreeSubMapTest.suite(),
532	<	TreeSubSetTest.suite());
532	>	TreeSubSetTest.suite(),
533	>	VectorTest.suite());
534
535		// Java8+ test classes
536		if (atLeastJava8()) {
537		String[] java8TestClassNames = {
538	+	"ArrayDeque8Test",
539		"Atomic8Test",
540		"CompletableFutureTest",
541		"ConcurrentHashMap8Test",
542	<	"CountedCompleterTest",
542	>	"CountedCompleter8Test",
543		"DoubleAccumulatorTest",
544		"DoubleAdderTest",
545		"ForkJoinPool8Test",
546		"ForkJoinTask8Test",
547	+	"HashMapTest",
548	+	"LinkedBlockingDeque8Test",
549	+	"LinkedBlockingQueue8Test",
550		"LongAccumulatorTest",
551		"LongAdderTest",
552		"SplittableRandomTest",
553		"StampedLockTest",
554		"SubmissionPublisherTest",
555		"ThreadLocalRandom8Test",
556	+	"TimeUnit8Test",
557		};
558		addNamedTestClasses(suite, java8TestClassNames);
559		}
#	Line 388 | Line 561 | public class JSR166TestCase extends Test
561		// Java9+ test classes
562		if (atLeastJava9()) {
563		String[] java9TestClassNames = {
564	<	// Currently empty
564	>	"AtomicBoolean9Test",
565	>	"AtomicInteger9Test",
566	>	"AtomicIntegerArray9Test",
567	>	"AtomicLong9Test",
568	>	"AtomicLongArray9Test",
569	>	"AtomicReference9Test",
570	>	"AtomicReferenceArray9Test",
571	>	"ExecutorCompletionService9Test",
572	>	"ForkJoinPool9Test",
573		};
574		addNamedTestClasses(suite, java9TestClassNames);
575		}
#	Line 399 | Line 580 | public class JSR166TestCase extends Test
580		/** Returns list of junit-style test method names in given class. */
581		public static ArrayList<String> testMethodNames(Class<?> testClass) {
582		Method[] methods = testClass.getDeclaredMethods();
583	<	ArrayList<String> names = new ArrayList<String>(methods.length);
583	>	ArrayList<String> names = new ArrayList<>(methods.length);
584		for (Method method : methods) {
585		if (method.getName().startsWith("test")
586		&& Modifier.isPublic(method.getModifiers())
#	Line 455 | Line 636 | public class JSR166TestCase extends Test
636		} else {
637		return new TestSuite();
638		}
458	–
639		}
640
641		// Delays for timing-dependent tests, in milliseconds.
#	Line 465 | Line 645 | public class JSR166TestCase extends Test
645		public static long MEDIUM_DELAY_MS;
646		public static long LONG_DELAY_MS;
647
648	+	private static final long RANDOM_TIMEOUT;
649	+	private static final long RANDOM_EXPIRED_TIMEOUT;
650	+	private static final TimeUnit RANDOM_TIMEUNIT;
651	+	static {
652	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
653	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
654	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
655	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
656	+	TimeUnit[] timeUnits = TimeUnit.values();
657	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
658	+	}
659	+
660	+	/**
661	+	* Returns a timeout for use when any value at all will do.
662	+	*/
663	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
664	+
665		/**
666	<	* Returns the shortest timed delay. This could
667	<	* be reimplemented to use for example a Property.
666	>	* Returns a timeout that means "no waiting", i.e. not positive.
667	>	*/
668	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
669	>
670	>	/**
671	>	* Returns a random non-null TimeUnit.
672	>	*/
673	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
674	>
675	>	/**
676	>	* Returns the shortest timed delay. This can be scaled up for
677	>	* slow machines using the jsr166.delay.factor system property,
678	>	* or via jtreg's -timeoutFactor: flag.
679	>	* http://openjdk.java.net/jtreg/command-help.html
680		*/
681		protected long getShortDelay() {
682	<	return 50;
682	>	return (long) (50 * delayFactor);
683		}
684
685		/**
#	Line 483 | Line 692 | public class JSR166TestCase extends Test
692		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
693		}
694
695	+	private static final long TIMEOUT_DELAY_MS
696	+	= (long) (12.0 * Math.cbrt(delayFactor));
697	+
698		/**
699	<	* Returns a timeout in milliseconds to be used in tests that
700	<	* verify that operations block or time out.
699	>	* Returns a timeout in milliseconds to be used in tests that verify
700	>	* that operations block or time out.  We want this to be longer
701	>	* than the OS scheduling quantum, but not too long, so don't scale
702	>	* linearly with delayFactor; we use "crazy" cube root instead.
703		*/
704	<	long timeoutMillis() {
705	<	return SHORT_DELAY_MS / 4;
704	>	static long timeoutMillis() {
705	>	return TIMEOUT_DELAY_MS;
706		}
707
708		/**
#	Line 504 | Line 718 | public class JSR166TestCase extends Test
718		* The first exception encountered if any threadAssertXXX method fails.
719		*/
720		private final AtomicReference<Throwable> threadFailure
721	<	= new AtomicReference<Throwable>(null);
721	>	= new AtomicReference<>(null);
722
723		/**
724		* Records an exception so that it can be rethrown later in the test
#	Line 513 | Line 727 | public class JSR166TestCase extends Test
727		* the same test have no effect.
728		*/
729		public void threadRecordFailure(Throwable t) {
730	+	System.err.println(t);
731	+	dumpTestThreads();
732		threadFailure.compareAndSet(null, t);
733		}
734
#	Line 520 | Line 736 | public class JSR166TestCase extends Test
736		setDelays();
737		}
738
739	+	void tearDownFail(String format, Object... args) {
740	+	String msg = toString() + ": " + String.format(format, args);
741	+	System.err.println(msg);
742	+	dumpTestThreads();
743	+	throw new AssertionFailedError(msg);
744	+	}
745	+
746		/**
747		* Extra checks that get done for all test cases.
748		*
#	Line 547 | Line 770 | public class JSR166TestCase extends Test
770		}
771
772		if (Thread.interrupted())
773	<	throw new AssertionFailedError("interrupt status set in main thread");
773	>	tearDownFail("interrupt status set in main thread");
774
775		checkForkJoinPoolThreadLeaks();
776		}
777
778		/**
779	<	* Finds missing try { ... } finally { joinPool(e); }
779	>	* Finds missing PoolCleaners
780		*/
781		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
782	<	Thread[] survivors = new Thread[5];
782	>	Thread[] survivors = new Thread[7];
783		int count = Thread.enumerate(survivors);
784		for (int i = 0; i < count; i++) {
785		Thread thread = survivors[i];
#	Line 564 | Line 787 | public class JSR166TestCase extends Test
787		if (name.startsWith("ForkJoinPool-")) {
788		// give thread some time to terminate
789		thread.join(LONG_DELAY_MS);
790	<	if (!thread.isAlive()) continue;
791	<	throw new AssertionFailedError
792	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
570	<	toString(), name));
790	>	if (thread.isAlive())
791	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
792	>	thread);
793		}
794		}
795	+
796	+	if (!ForkJoinPool.commonPool()
797	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
798	+	tearDownFail("ForkJoin common pool thread stuck");
799		}
800
801		/**
#	Line 582 | Line 808 | public class JSR166TestCase extends Test
808		fail(reason);
809		} catch (AssertionFailedError t) {
810		threadRecordFailure(t);
811	<	fail(reason);
811	>	throw t;
812		}
813		}
814
#	Line 709 | Line 935 | public class JSR166TestCase extends Test
935		/**
936		* Delays, via Thread.sleep, for the given millisecond delay, but
937		* if the sleep is shorter than specified, may re-sleep or yield
938	<	* until time elapses.
938	>	* until time elapses.  Ensures that the given time, as measured
939	>	* by System.nanoTime(), has elapsed.
940		*/
941		static void delay(long millis) throws InterruptedException {
942	<	long startTime = System.nanoTime();
943	<	long ns = millis * 1000 * 1000;
944	<	for (;;) {
942	>	long nanos = millis * (1000 * 1000);
943	>	final long wakeupTime = System.nanoTime() + nanos;
944	>	do {
945		if (millis > 0L)
946		Thread.sleep(millis);
947		else // too short to sleep
948		Thread.yield();
949	<	long d = ns - (System.nanoTime() - startTime);
950	<	if (d > 0L)
951	<	millis = d / (1000 * 1000);
952	<	else
953	<	break;
949	>	nanos = wakeupTime - System.nanoTime();
950	>	millis = nanos / (1000 * 1000);
951	>	} while (nanos >= 0L);
952	>	}
953	>
954	>	/**
955	>	* Allows use of try-with-resources with per-test thread pools.
956	>	*/
957	>	class PoolCleaner implements AutoCloseable {
958	>	private final ExecutorService pool;
959	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
960	>	public void close() { joinPool(pool); }
961	>	}
962	>
963	>	/**
964	>	* An extension of PoolCleaner that has an action to release the pool.
965	>	*/
966	>	class PoolCleanerWithReleaser extends PoolCleaner {
967	>	private final Runnable releaser;
968	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
969	>	super(pool);
970	>	this.releaser = releaser;
971	>	}
972	>	public void close() {
973	>	try {
974	>	releaser.run();
975	>	} finally {
976	>	super.close();
977	>	}
978		}
979		}
980
981	+	PoolCleaner cleaner(ExecutorService pool) {
982	+	return new PoolCleaner(pool);
983	+	}
984	+
985	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
986	+	return new PoolCleanerWithReleaser(pool, releaser);
987	+	}
988	+
989	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
990	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
991	+	}
992	+
993	+	Runnable releaser(final CountDownLatch latch) {
994	+	return new Runnable() { public void run() {
995	+	do { latch.countDown(); }
996	+	while (latch.getCount() > 0);
997	+	}};
998	+	}
999	+
1000	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1001	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1002	+	}
1003	+
1004	+	Runnable releaser(final AtomicBoolean flag) {
1005	+	return new Runnable() { public void run() { flag.set(true); }};
1006	+	}
1007	+
1008		/**
1009		* Waits out termination of a thread pool or fails doing so.
1010		*/
1011		void joinPool(ExecutorService pool) {
1012		try {
1013		pool.shutdown();
1014	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1015	<	fail("ExecutorService " + pool +
1016	<	" did not terminate in a timely manner");
1014	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1015	>	try {
1016	>	threadFail("ExecutorService " + pool +
1017	>	" did not terminate in a timely manner");
1018	>	} finally {
1019	>	// last resort, for the benefit of subsequent tests
1020	>	pool.shutdownNow();
1021	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1022	>	}
1023	>	}
1024		} catch (SecurityException ok) {
1025		// Allowed in case test doesn't have privs
1026		} catch (InterruptedException fail) {
1027	<	fail("Unexpected InterruptedException");
1027	>	threadFail("Unexpected InterruptedException");
1028		}
1029		}
1030
1031	<	/** Like Runnable, but with the freedom to throw anything */
1031	>	/**
1032	>	* Like Runnable, but with the freedom to throw anything.
1033	>	* junit folks had the same idea:
1034	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1035	>	*/
1036		interface Action { public void run() throws Throwable; }
1037
1038		/**
#	Line 753 | Line 1042 | public class JSR166TestCase extends Test
1042		*/
1043		void testInParallel(Action ... actions) {
1044		ExecutorService pool = Executors.newCachedThreadPool();
1045	<	try {
1045	>	try (PoolCleaner cleaner = cleaner(pool)) {
1046		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1047		for (final Action action : actions)
1048		futures.add(pool.submit(new CheckedRunnable() {
#	Line 766 | Line 1055 | public class JSR166TestCase extends Test
1055		} catch (Exception ex) {
1056		threadUnexpectedException(ex);
1057		}
769	–	} finally {
770	–	joinPool(pool);
1058		}
1059		}
1060
1061		/**
1062	<	* A debugging tool to print all stack traces, as jstack does.
1062	>	* A debugging tool to print stack traces of most threads, as jstack does.
1063	>	* Uninteresting threads are filtered out.
1064		*/
1065	<	static void printAllStackTraces() {
1066	<	for (ThreadInfo info :
1067	<	ManagementFactory.getThreadMXBean()
1068	<	.dumpAllThreads(true, true))
1069	<	System.err.print(info);
1070	<	}
1071	<
1072	<	/**
1073	<	* Checks that thread does not terminate within the default
786	<	* millisecond delay of {@code timeoutMillis()}.
787	<	*/
788	<	void assertThreadStaysAlive(Thread thread) {
789	<	assertThreadStaysAlive(thread, timeoutMillis());
790	<	}
1065	>	static void dumpTestThreads() {
1066	>	SecurityManager sm = System.getSecurityManager();
1067	>	if (sm != null) {
1068	>	try {
1069	>	System.setSecurityManager(null);
1070	>	} catch (SecurityException giveUp) {
1071	>	return;
1072	>	}
1073	>	}
1074
1075	<	/**
1076	<	* Checks that thread does not terminate within the given millisecond delay.
1077	<	*/
1078	<	void assertThreadStaysAlive(Thread thread, long millis) {
1079	<	try {
1080	<	// No need to optimize the failing case via Thread.join.
1081	<	delay(millis);
1082	<	assertTrue(thread.isAlive());
1083	<	} catch (InterruptedException fail) {
1084	<	fail("Unexpected InterruptedException");
1075	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1076	>	System.err.println("------ stacktrace dump start ------");
1077	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1078	>	final String name = info.getThreadName();
1079	>	String lockName;
1080	>	if ("Signal Dispatcher".equals(name))
1081	>	continue;
1082	>	if ("Reference Handler".equals(name)
1083	>	&& (lockName = info.getLockName()) != null
1084	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1085	>	continue;
1086	>	if ("Finalizer".equals(name)
1087	>	&& (lockName = info.getLockName()) != null
1088	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1089	>	continue;
1090	>	if ("checkForWedgedTest".equals(name))
1091	>	continue;
1092	>	System.err.print(info);
1093		}
1094	<	}
1094	>	System.err.println("------ stacktrace dump end ------");
1095
1096	<	/**
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);
1096	>	if (sm != null) System.setSecurityManager(sm);
1097		}
1098
1099		/**
1100	<	* Checks that the threads do not terminate within the given millisecond delay.
1100	>	* Checks that thread eventually enters the expected blocked thread state.
1101		*/
1102	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1103	<	try {
1104	<	// No need to optimize the failing case via Thread.join.
1105	<	delay(millis);
1106	<	for (Thread thread : threads)
1107	<	assertTrue(thread.isAlive());
1108	<	} catch (InterruptedException fail) {
1109	<	fail("Unexpected InterruptedException");
1102	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1103	>	// always sleep at least 1 ms, with high probability avoiding
1104	>	// transitory states
1105	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1106	>	try { delay(1); }
1107	>	catch (InterruptedException fail) {
1108	>	fail("Unexpected InterruptedException");
1109	>	}
1110	>	Thread.State s = thread.getState();
1111	>	if (s == expected)
1112	>	return;
1113	>	else if (s == Thread.State.TERMINATED)
1114	>	fail("Unexpected thread termination");
1115		}
1116	+	fail("timed out waiting for thread to enter thread state " + expected);
1117		}
1118
1119		/**
#	Line 862 | Line 1154 | public class JSR166TestCase extends Test
1154		}
1155
1156		/**
1157	+	* The maximum number of consecutive spurious wakeups we should
1158	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1159	+	*/
1160	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1161	+
1162	+	/**
1163		* The number of elements to place in collections, arrays, etc.
1164		*/
1165		public static final int SIZE = 20;
#	Line 965 | Line 1263 | public class JSR166TestCase extends Test
1263		}
1264		public void refresh() {}
1265		public String toString() {
1266	<	List<Permission> ps = new ArrayList<Permission>();
1266	>	List<Permission> ps = new ArrayList<>();
1267		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1268		ps.add(e.nextElement());
1269		return "AdjustablePolicy with permissions " + ps;
#	Line 995 | Line 1293 | public class JSR166TestCase extends Test
1293		* Sleeps until the given time has elapsed.
1294		* Throws AssertionFailedError if interrupted.
1295		*/
1296	<	void sleep(long millis) {
1296	>	static void sleep(long millis) {
1297		try {
1298		delay(millis);
1299		} catch (InterruptedException fail) {
#	Line 1011 | Line 1309 | public class JSR166TestCase extends Test
1309		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1310		*/
1311		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1312	<	long startTime = System.nanoTime();
1312	>	long startTime = 0L;
1313		for (;;) {
1314		Thread.State s = thread.getState();
1315		if (s == Thread.State.BLOCKED ||
#	Line 1020 | Line 1318 | public class JSR166TestCase extends Test
1318		return;
1319		else if (s == Thread.State.TERMINATED)
1320		fail("Unexpected thread termination");
1321	+	else if (startTime == 0L)
1322	+	startTime = System.nanoTime();
1323		else if (millisElapsedSince(startTime) > timeoutMillis) {
1324		threadAssertTrue(thread.isAlive());
1325	<	return;
1325	>	fail("timed out waiting for thread to enter wait state");
1326		}
1327		Thread.yield();
1328		}
1329		}
1330
1331		/**
1332	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1333	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1332	>	* Spin-waits up to the specified number of milliseconds for the given
1333	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1334	>	* and additionally satisfy the given condition.
1335	>	*/
1336	>	void waitForThreadToEnterWaitState(
1337	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1338	>	long startTime = 0L;
1339	>	for (;;) {
1340	>	Thread.State s = thread.getState();
1341	>	if (s == Thread.State.BLOCKED ||
1342	>	s == Thread.State.WAITING ||
1343	>	s == Thread.State.TIMED_WAITING) {
1344	>	try {
1345	>	if (waitingForGodot.call())
1346	>	return;
1347	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1348	>	}
1349	>	else if (s == Thread.State.TERMINATED)
1350	>	fail("Unexpected thread termination");
1351	>	else if (startTime == 0L)
1352	>	startTime = System.nanoTime();
1353	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1354	>	threadAssertTrue(thread.isAlive());
1355	>	fail("timed out waiting for thread to enter wait state");
1356	>	}
1357	>	Thread.yield();
1358	>	}
1359	>	}
1360	>
1361	>	/**
1362	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1363	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1364		*/
1365		void waitForThreadToEnterWaitState(Thread thread) {
1366		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1367		}
1368
1369		/**
1370	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1371	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1372	+	* and additionally satisfy the given condition.
1373	+	*/
1374	+	void waitForThreadToEnterWaitState(
1375	+	Thread thread, Callable<Boolean> waitingForGodot) {
1376	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1377	+	}
1378	+
1379	+	/**
1380		* Returns the number of milliseconds since time given by
1381		* startNanoTime, which must have been previously returned from a
1382		* call to {@link System#nanoTime()}.
#	Line 1098 | Line 1438 | public class JSR166TestCase extends Test
1438		} finally {
1439		if (t.getState() != Thread.State.TERMINATED) {
1440		t.interrupt();
1441	<	fail("Test timed out");
1441	>	threadFail("timed out waiting for thread to terminate");
1442		}
1443		}
1444		}
#	Line 1223 | Line 1563 | public class JSR166TestCase extends Test
1563		public static final String TEST_STRING = "a test string";
1564
1565		public static class StringTask implements Callable<String> {
1566	<	public String call() { return TEST_STRING; }
1566	>	final String value;
1567	>	public StringTask() { this(TEST_STRING); }
1568	>	public StringTask(String value) { this.value = value; }
1569	>	public String call() { return value; }
1570		}
1571
1572		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 1236 | Line 1579 | public class JSR166TestCase extends Test
1579		}};
1580		}
1581
1582	<	public Runnable awaiter(final CountDownLatch latch) {
1582	>	public Runnable countDowner(final CountDownLatch latch) {
1583		return new CheckedRunnable() {
1584		public void realRun() throws InterruptedException {
1585	<	await(latch);
1585	>	latch.countDown();
1586		}};
1587		}
1588
1589	<	public void await(CountDownLatch latch) {
1589	>	class LatchAwaiter extends CheckedRunnable {
1590	>	static final int NEW = 0;
1591	>	static final int RUNNING = 1;
1592	>	static final int DONE = 2;
1593	>	final CountDownLatch latch;
1594	>	int state = NEW;
1595	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1596	>	public void realRun() throws InterruptedException {
1597	>	state = 1;
1598	>	await(latch);
1599	>	state = 2;
1600	>	}
1601	>	}
1602	>
1603	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1604	>	return new LatchAwaiter(latch);
1605	>	}
1606	>
1607	>	public void await(CountDownLatch latch, long timeoutMillis) {
1608		try {
1609	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1609	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1610	>	fail("timed out waiting for CountDownLatch for "
1611	>	+ (timeoutMillis/1000) + " sec");
1612		} catch (Throwable fail) {
1613		threadUnexpectedException(fail);
1614		}
1615		}
1616
1617	+	public void await(CountDownLatch latch) {
1618	+	await(latch, LONG_DELAY_MS);
1619	+	}
1620	+
1621		public void await(Semaphore semaphore) {
1622		try {
1623	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1623	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1624	>	fail("timed out waiting for Semaphore for "
1625	>	+ (LONG_DELAY_MS/1000) + " sec");
1626	>	} catch (Throwable fail) {
1627	>	threadUnexpectedException(fail);
1628	>	}
1629	>	}
1630	>
1631	>	public void await(CyclicBarrier barrier) {
1632	>	try {
1633	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1634		} catch (Throwable fail) {
1635		threadUnexpectedException(fail);
1636		}
#	Line 1282 | Line 1659 | public class JSR166TestCase extends Test
1659		public String call() { throw new NullPointerException(); }
1660		}
1661
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	–
1662		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1663		protected void realRun() {
1664		try {
#	Line 1312 | Line 1667 | public class JSR166TestCase extends Test
1667		}
1668		}
1669
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	–
1670		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1671		return new CheckedRunnable() {
1672		protected void realRun() {
#	Line 1340 | Line 1676 | public class JSR166TestCase extends Test
1676		}};
1677		}
1678
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	–
1679		/**
1680		* For use as ThreadFactory in constructors
1681		*/
#	Line 1369 | Line 1689 | public class JSR166TestCase extends Test
1689		boolean isDone();
1690		}
1691
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	–
1692		public static class TrackedNoOpRunnable implements Runnable {
1693		public volatile boolean done = false;
1694		public void run() {
#	Line 1429 | Line 1696 | public class JSR166TestCase extends Test
1696		}
1697		}
1698
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	–
1699		/**
1700		* Analog of CheckedRunnable for RecursiveAction
1701		*/
#	Line 1483 | Line 1739 | public class JSR166TestCase extends Test
1739		* A CyclicBarrier that uses timed await and fails with
1740		* AssertionFailedErrors instead of throwing checked exceptions.
1741		*/
1742	<	public class CheckedBarrier extends CyclicBarrier {
1742	>	public static class CheckedBarrier extends CyclicBarrier {
1743		public CheckedBarrier(int parties) { super(parties); }
1744
1745		public int await() {
#	Line 1506 | Line 1762 | public class JSR166TestCase extends Test
1762		assertEquals(0, q.size());
1763		assertNull(q.peek());
1764		assertNull(q.poll());
1765	<	assertNull(q.poll(0, MILLISECONDS));
1765	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1766		assertEquals(q.toString(), "[]");
1767		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1768		assertFalse(q.iterator().hasNext());
#	Line 1547 | Line 1803 | public class JSR166TestCase extends Test
1803		}
1804		}
1805
1806	+	void assertImmutable(final Object o) {
1807	+	if (o instanceof Collection) {
1808	+	assertThrows(
1809	+	UnsupportedOperationException.class,
1810	+	new Runnable() { public void run() {
1811	+	((Collection) o).add(null);}});
1812	+	}
1813	+	}
1814	+
1815		@SuppressWarnings("unchecked")
1816		<T> T serialClone(T o) {
1817		try {
1818		ObjectInputStream ois = new ObjectInputStream
1819		(new ByteArrayInputStream(serialBytes(o)));
1820		T clone = (T) ois.readObject();
1821	+	if (o == clone) assertImmutable(o);
1822		assertSame(o.getClass(), clone.getClass());
1823		return clone;
1824		} catch (Throwable fail) {
#	Line 1561 | Line 1827 | public class JSR166TestCase extends Test
1827		}
1828		}
1829
1830	+	/**
1831	+	* A version of serialClone that leaves error handling (for
1832	+	* e.g. NotSerializableException) up to the caller.
1833	+	*/
1834	+	@SuppressWarnings("unchecked")
1835	+	<T> T serialClonePossiblyFailing(T o)
1836	+	throws ReflectiveOperationException, java.io.IOException {
1837	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1838	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1839	+	oos.writeObject(o);
1840	+	oos.flush();
1841	+	oos.close();
1842	+	ObjectInputStream ois = new ObjectInputStream
1843	+	(new ByteArrayInputStream(bos.toByteArray()));
1844	+	T clone = (T) ois.readObject();
1845	+	if (o == clone) assertImmutable(o);
1846	+	assertSame(o.getClass(), clone.getClass());
1847	+	return clone;
1848	+	}
1849	+
1850	+	/**
1851	+	* If o implements Cloneable and has a public clone method,
1852	+	* returns a clone of o, else null.
1853	+	*/
1854	+	@SuppressWarnings("unchecked")
1855	+	<T> T cloneableClone(T o) {
1856	+	if (!(o instanceof Cloneable)) return null;
1857	+	final T clone;
1858	+	try {
1859	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1860	+	} catch (NoSuchMethodException ok) {
1861	+	return null;
1862	+	} catch (ReflectiveOperationException unexpected) {
1863	+	throw new Error(unexpected);
1864	+	}
1865	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1866	+	assertSame(o.getClass(), clone.getClass());
1867	+	return clone;
1868	+	}
1869	+
1870		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1871		Runnable... throwingActions) {
1872		for (Runnable throwingAction : throwingActions) {
#	Line 1589 | Line 1895 | public class JSR166TestCase extends Test
1895		} catch (NoSuchElementException success) {}
1896		assertFalse(it.hasNext());
1897		}
1898	+
1899	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1900	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1901	+	}
1902	+
1903	+	public Runnable runnableThrowing(final RuntimeException ex) {
1904	+	return new Runnable() { public void run() { throw ex; }};
1905	+	}
1906	+
1907	+	/** A reusable thread pool to be shared by tests. */
1908	+	static final ExecutorService cachedThreadPool =
1909	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1910	+	1000L, MILLISECONDS,
1911	+	new SynchronousQueue<Runnable>());
1912	+
1913	+	static <T> void shuffle(T[] array) {
1914	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1915	+	}
1916	+
1917	+	/**
1918	+	* Returns the same String as would be returned by {@link
1919	+	* Object#toString}, whether or not the given object's class
1920	+	* overrides toString().
1921	+	*
1922	+	* @see System#identityHashCode
1923	+	*/
1924	+	static String identityString(Object x) {
1925	+	return x.getClass().getName()
1926	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1927	+	}
1928	+
1929	+	// --- Shared assertions for Executor tests ---
1930	+
1931	+	/**
1932	+	* Returns maximum number of tasks that can be submitted to given
1933	+	* pool (with bounded queue) before saturation (when submission
1934	+	* throws RejectedExecutionException).
1935	+	*/
1936	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1937	+	BlockingQueue<Runnable> q = pool.getQueue();
1938	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1939	+	}
1940	+
1941	+	@SuppressWarnings("FutureReturnValueIgnored")
1942	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1943	+	try {
1944	+	e.execute((Runnable) null);
1945	+	shouldThrow();
1946	+	} catch (NullPointerException success) {}
1947	+
1948	+	if (! (e instanceof ExecutorService)) return;
1949	+	ExecutorService es = (ExecutorService) e;
1950	+	try {
1951	+	es.submit((Runnable) null);
1952	+	shouldThrow();
1953	+	} catch (NullPointerException success) {}
1954	+	try {
1955	+	es.submit((Runnable) null, Boolean.TRUE);
1956	+	shouldThrow();
1957	+	} catch (NullPointerException success) {}
1958	+	try {
1959	+	es.submit((Callable) null);
1960	+	shouldThrow();
1961	+	} catch (NullPointerException success) {}
1962	+
1963	+	if (! (e instanceof ScheduledExecutorService)) return;
1964	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1965	+	try {
1966	+	ses.schedule((Runnable) null,
1967	+	randomTimeout(), randomTimeUnit());
1968	+	shouldThrow();
1969	+	} catch (NullPointerException success) {}
1970	+	try {
1971	+	ses.schedule((Callable) null,
1972	+	randomTimeout(), randomTimeUnit());
1973	+	shouldThrow();
1974	+	} catch (NullPointerException success) {}
1975	+	try {
1976	+	ses.scheduleAtFixedRate((Runnable) null,
1977	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1978	+	shouldThrow();
1979	+	} catch (NullPointerException success) {}
1980	+	try {
1981	+	ses.scheduleWithFixedDelay((Runnable) null,
1982	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1983	+	shouldThrow();
1984	+	} catch (NullPointerException success) {}
1985	+	}
1986	+
1987	+	void setRejectedExecutionHandler(
1988	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1989	+	p.setRejectedExecutionHandler(handler);
1990	+	assertSame(handler, p.getRejectedExecutionHandler());
1991	+	}
1992	+
1993	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1994	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1995	+	final long savedTaskCount = p.getTaskCount();
1996	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1997	+	final int savedQueueSize = p.getQueue().size();
1998	+	final boolean stock = (p.getClass().getClassLoader() == null);
1999	+
2000	+	Runnable r = () -> {};
2001	+	Callable<Boolean> c = () -> Boolean.TRUE;
2002	+
2003	+	class Recorder implements RejectedExecutionHandler {
2004	+	public volatile Runnable r = null;
2005	+	public volatile ThreadPoolExecutor p = null;
2006	+	public void reset() { r = null; p = null; }
2007	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2008	+	assertNull(this.r);
2009	+	assertNull(this.p);
2010	+	this.r = r;
2011	+	this.p = p;
2012	+	}
2013	+	}
2014	+
2015	+	// check custom handler is invoked exactly once per task
2016	+	Recorder recorder = new Recorder();
2017	+	setRejectedExecutionHandler(p, recorder);
2018	+	for (int i = 2; i--> 0; ) {
2019	+	recorder.reset();
2020	+	p.execute(r);
2021	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2022	+	assertSame(r, recorder.r);
2023	+	assertSame(p, recorder.p);
2024	+
2025	+	recorder.reset();
2026	+	assertFalse(p.submit(r).isDone());
2027	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2028	+	assertSame(p, recorder.p);
2029	+
2030	+	recorder.reset();
2031	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2032	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2033	+	assertSame(p, recorder.p);
2034	+
2035	+	recorder.reset();
2036	+	assertFalse(p.submit(c).isDone());
2037	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2038	+	assertSame(p, recorder.p);
2039	+
2040	+	if (p instanceof ScheduledExecutorService) {
2041	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2042	+	ScheduledFuture<?> future;
2043	+
2044	+	recorder.reset();
2045	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2046	+	assertFalse(future.isDone());
2047	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2048	+	assertSame(p, recorder.p);
2049	+
2050	+	recorder.reset();
2051	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2052	+	assertFalse(future.isDone());
2053	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2054	+	assertSame(p, recorder.p);
2055	+
2056	+	recorder.reset();
2057	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2058	+	assertFalse(future.isDone());
2059	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2060	+	assertSame(p, recorder.p);
2061	+
2062	+	recorder.reset();
2063	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2064	+	assertFalse(future.isDone());
2065	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2066	+	assertSame(p, recorder.p);
2067	+	}
2068	+	}
2069	+
2070	+	// Checking our custom handler above should be sufficient, but
2071	+	// we add some integration tests of standard handlers.
2072	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2073	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2074	+
2075	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2076	+	try {
2077	+	p.execute(setThread);
2078	+	shouldThrow();
2079	+	} catch (RejectedExecutionException success) {}
2080	+	assertNull(thread.get());
2081	+
2082	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2083	+	p.execute(setThread);
2084	+	assertNull(thread.get());
2085	+
2086	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2087	+	p.execute(setThread);
2088	+	if (p.isShutdown())
2089	+	assertNull(thread.get());
2090	+	else
2091	+	assertSame(Thread.currentThread(), thread.get());
2092	+
2093	+	setRejectedExecutionHandler(p, savedHandler);
2094	+
2095	+	// check that pool was not perturbed by handlers
2096	+	assertEquals(savedTaskCount, p.getTaskCount());
2097	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2098	+	assertEquals(savedQueueSize, p.getQueue().size());
2099	+	}
2100		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines