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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.119 by jsr166, Mon Jun 16 20:13:54 2014 UTC vs.
Revision 1.266 by jsr166, Sat Sep 7 17:40:05 2019 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	<	import junit.framework.*;
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;
48		import java.io.ByteArrayOutputStream;
49		import java.io.ObjectInputStream;
50		import java.io.ObjectOutputStream;
51		import java.lang.management.ManagementFactory;
52		import java.lang.management.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;
57	+	import java.security.CodeSource;
58	+	import java.security.Permission;
59	+	import java.security.PermissionCollection;
60	+	import java.security.Permissions;
61	+	import java.security.Policy;
62	+	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.concurrent.*;
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;
27	–	import static java.util.concurrent.TimeUnit.MILLISECONDS;
28	–	import static java.util.concurrent.TimeUnit.NANOSECONDS;
103		import java.util.regex.Pattern;
104	<	import java.security.CodeSource;
105	<	import java.security.Permission;
106	<	import java.security.PermissionCollection;
107	<	import java.security.Permissions;
108	<	import java.security.Policy;
35	<	import java.security.ProtectionDomain;
36	<	import java.security.SecurityPermission;
104	>
105	>	import junit.framework.Test;
106	>	import junit.framework.TestCase;
107	>	import junit.framework.TestResult;
108	>	import junit.framework.TestSuite;
109
110		/**
111		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 45 | Line 117 | import java.security.SecurityPermission;
117		*
118		* <ol>
119		*
120	<	* <li> All assertions in code running in generated threads must use
121	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
122	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
123	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
124	<	* particularly recommended) for other code to use these forms too.
125	<	* Only the most typically used JUnit assertion methods are defined
126	<	* this way, but enough to live with.</li>
120	>	* <li>All code not running in the main test thread (manually spawned threads
121	>	* or the common fork join pool) must be checked for failure (and completion!).
122	>	* Mechanisms that can be used to ensure this are:
123	>	*   <ol>
124	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
125	>	*    that the task completed normally, which is checked before returning from
126	>	*    the test method in the main thread.
127	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
128	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
129	>	*    Only the most typically used JUnit assertion methods are defined
130	>	*    this way, but enough to live with.
131	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
132	>	*    or {@link #threadRecordFailure}.
133	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
134	>	*   </ol>
135		*
136	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
136	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
137		* to invoke {@code super.setUp} and {@code super.tearDown} within
138		* them. These methods are used to clear and check for thread
139	<	* assertion failures.</li>
139	>	* assertion failures.
140		*
141		* <li>All delays and timeouts must use one of the constants {@code
142		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 67 | Line 147 | import java.security.SecurityPermission;
147		* is always discriminable as larger than SHORT and smaller than
148		* MEDIUM.  And so on. These constants are set to conservative values,
149		* but even so, if there is ever any doubt, they can all be increased
150	<	* in one spot to rerun tests on slower platforms.</li>
150	>	* in one spot to rerun tests on slower platforms.
151		*
152	<	* <li> All threads generated must be joined inside each test case
152	>	* <li>All threads generated must be joined inside each test case
153		* method (or {@code fail} to do so) before returning from the
154		* method. The {@code joinPool} method can be used to do this when
155	<	* using Executors.</li>
155	>	* using Executors.
156		*
157		* </ol>
158		*
159		* <p><b>Other notes</b>
160		* <ul>
161		*
162	<	* <li> Usually, there is one testcase method per JSR166 method
162	>	* <li>Usually, there is one testcase method per JSR166 method
163		* covering "normal" operation, and then as many exception-testing
164		* methods as there are exceptions the method can throw. Sometimes
165		* there are multiple tests per JSR166 method when the different
166		* "normal" behaviors differ significantly. And sometimes testcases
167	<	* cover multiple methods when they cannot be tested in
88	<	* isolation.</li>
167	>	* cover multiple methods when they cannot be tested in isolation.
168		*
169	<	* <li> The documentation style for testcases is to provide as javadoc
169	>	* <li>The documentation style for testcases is to provide as javadoc
170		* a simple sentence or two describing the property that the testcase
171		* method purports to test. The javadocs do not say anything about how
172	<	* the property is tested. To find out, read the code.</li>
172	>	* the property is tested. To find out, read the code.
173		*
174	<	* <li> These tests are "conformance tests", and do not attempt to
174	>	* <li>These tests are "conformance tests", and do not attempt to
175		* test throughput, latency, scalability or other performance factors
176		* (see the separate "jtreg" tests for a set intended to check these
177		* for the most central aspects of functionality.) So, most tests use
178		* the smallest sensible numbers of threads, collection sizes, etc
179	<	* needed to check basic conformance.</li>
179	>	* needed to check basic conformance.
180		*
181		* <li>The test classes currently do not declare inclusion in
182		* any particular package to simplify things for people integrating
183	<	* them in TCK test suites.</li>
183	>	* them in TCK test suites.
184		*
185	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
186	<	* runs all JSR166 unit tests.</li>
185	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
186	>	* runs all JSR166 unit tests.
187		*
188		* </ul>
189		*/
#	Line 143 | Line 222 | public class JSR166TestCase extends Test
222		Integer.getInteger("jsr166.runsPerTest", 1);
223
224		/**
225	+	* The number of repetitions of the test suite (for finding leaks?).
226	+	*/
227	+	private static final int suiteRuns =
228	+	Integer.getInteger("jsr166.suiteRuns", 1);
229	+
230	+	/**
231	+	* Returns the value of the system property, or NaN if not defined.
232	+	*/
233	+	private static float systemPropertyValue(String name) {
234	+	String floatString = System.getProperty(name);
235	+	if (floatString == null)
236	+	return Float.NaN;
237	+	try {
238	+	return Float.parseFloat(floatString);
239	+	} catch (NumberFormatException ex) {
240	+	throw new IllegalArgumentException(
241	+	String.format("Bad float value in system property %s=%s",
242	+	name, floatString));
243	+	}
244	+	}
245	+
246	+	/**
247	+	* The scaling factor to apply to standard delays used in tests.
248	+	* May be initialized from any of:
249	+	* - the "jsr166.delay.factor" system property
250	+	* - the "test.timeout.factor" system property (as used by jtreg)
251	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
252	+	* - hard-coded fuzz factor when using a known slowpoke VM
253	+	*/
254	+	private static final float delayFactor = delayFactor();
255	+
256	+	private static float delayFactor() {
257	+	float x;
258	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
259	+	return x;
260	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
261	+	return x;
262	+	String prop = System.getProperty("java.vm.version");
263	+	if (prop != null && prop.matches(".*debug.*"))
264	+	return 4.0f; // How much slower is fastdebug than product?!
265	+	return 1.0f;
266	+	}
267	+
268	+	public JSR166TestCase() { super(); }
269	+	public JSR166TestCase(String name) { super(name); }
270	+
271	+	/**
272		* A filter for tests to run, matching strings of the form
273		* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
274		* Usefully combined with jsr166.runsPerTest.
#	Line 154 | Line 280 | public class JSR166TestCase extends Test
280		return (regex == null) ? null : Pattern.compile(regex);
281		}
282
283	<	protected void runTest() throws Throwable {
283	>	// Instrumentation to debug very rare, but very annoying hung test runs.
284	>	static volatile TestCase currentTestCase;
285	>	// static volatile int currentRun = 0;
286	>	static {
287	>	Runnable wedgedTestDetector = new Runnable() { public void run() {
288	>	// Avoid spurious reports with enormous runsPerTest.
289	>	// A single test case run should never take more than 1 second.
290	>	// But let's cap it at the high end too ...
291	>	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
292	>	* Math.max((int) delayFactor, 1);
293	>	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
294	>	for (TestCase lastTestCase = currentTestCase;;) {
295	>	try { MINUTES.sleep(timeoutMinutes); }
296	>	catch (InterruptedException unexpected) { break; }
297	>	if (lastTestCase == currentTestCase) {
298	>	System.err.printf(
299	>	"Looks like we're stuck running test: %s%n",
300	>	lastTestCase);
301	>	//                     System.err.printf(
302	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
303	>	//                         lastTestCase, currentRun, runsPerTest);
304	>	//                     System.err.println("availableProcessors=" +
305	>	//                         Runtime.getRuntime().availableProcessors());
306	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
307	>	dumpTestThreads();
308	>	// one stack dump is probably enough; more would be spam
309	>	break;
310	>	}
311	>	lastTestCase = currentTestCase;
312	>	}}};
313	>	Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
314	>	thread.setDaemon(true);
315	>	thread.start();
316	>	}
317	>
318	>	//     public static String cpuModel() {
319	>	//         try {
320	>	//             java.util.regex.Matcher matcher
321	>	//               = Pattern.compile("model name\\s*: (.*)")
322	>	//                 .matcher(new String(
323	>	//                     java.nio.file.Files.readAllBytes(
324	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
325	>	//             matcher.find();
326	>	//             return matcher.group(1);
327	>	//         } catch (Exception ex) { return null; }
328	>	//     }
329	>
330	>	public void runBare() throws Throwable {
331	>	currentTestCase = this;
332		if (methodFilter == null
333	<	|| methodFilter.matcher(toString()).find()) {
334	<	for (int i = 0; i < runsPerTest; i++) {
335	<	if (profileTests)
336	<	runTestProfiled();
337	<	else
338	<	super.runTest();
339	<	}
333	>	|| methodFilter.matcher(toString()).find())
334	>	super.runBare();
335	>	}
336	>
337	>	protected void runTest() throws Throwable {
338	>	for (int i = 0; i < runsPerTest; i++) {
339	>	// currentRun = i;
340	>	if (profileTests)
341	>	runTestProfiled();
342	>	else
343	>	super.runTest();
344		}
345		}
346
347		protected void runTestProfiled() throws Throwable {
348	<	// Warmup run, notably to trigger all needed classloading.
349	<	super.runTest();
172	<	long t0 = System.nanoTime();
173	<	try {
348	>	for (int i = 0; i < 2; i++) {
349	>	long startTime = System.nanoTime();
350		super.runTest();
351	<	} finally {
352	<	long elapsedMillis = millisElapsedSince(t0);
353	<	if (elapsedMillis >= profileThreshold)
351	>	long elapsedMillis = millisElapsedSince(startTime);
352	>	if (elapsedMillis < profileThreshold)
353	>	break;
354	>	// Never report first run of any test; treat it as a
355	>	// warmup run, notably to trigger all needed classloading,
356	>	if (i > 0)
357		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
358		}
359		}
360
361		/**
362		* Runs all JSR166 unit tests using junit.textui.TestRunner.
184	–	* Optional command line arg provides the number of iterations to
185	–	* repeat running the tests.
363		*/
364		public static void main(String[] args) {
365	+	main(suite(), args);
366	+	}
367	+
368	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
369	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
370	+	long runTime;
371	+	public void startTest(Test test) {}
372	+	protected void printHeader(long runTime) {
373	+	this.runTime = runTime; // defer printing for later
374	+	}
375	+	protected void printFooter(TestResult result) {
376	+	if (result.wasSuccessful()) {
377	+	getWriter().println("OK (" + result.runCount() + " tests)"
378	+	+ "  Time: " + elapsedTimeAsString(runTime));
379	+	} else {
380	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
381	+	super.printFooter(result);
382	+	}
383	+	}
384	+	}
385	+
386	+	/**
387	+	* Returns a TestRunner that doesn't bother with unnecessary
388	+	* fluff, like printing a "." for each test case.
389	+	*/
390	+	static junit.textui.TestRunner newPithyTestRunner() {
391	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
392	+	runner.setPrinter(new PithyResultPrinter(System.out));
393	+	return runner;
394	+	}
395	+
396	+	/**
397	+	* Runs all unit tests in the given test suite.
398	+	* Actual behavior influenced by jsr166.* system properties.
399	+	*/
400	+	static void main(Test suite, String[] args) {
401		if (useSecurityManager) {
402		System.err.println("Setting a permissive security manager");
403		Policy.setPolicy(permissivePolicy());
404		System.setSecurityManager(new SecurityManager());
405		}
406	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
407	<
408	<	Test s = suite();
409	<	for (int i = 0; i < iters; ++i) {
197	<	junit.textui.TestRunner.run(s);
406	>	for (int i = 0; i < suiteRuns; i++) {
407	>	TestResult result = newPithyTestRunner().doRun(suite);
408	>	if (!result.wasSuccessful())
409	>	System.exit(1);
410		System.gc();
411		System.runFinalization();
412		}
201	–	System.exit(0);
413		}
414
415		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 219 | Line 430 | public class JSR166TestCase extends Test
430		for (String testClassName : testClassNames) {
431		try {
432		Class<?> testClass = Class.forName(testClassName);
433	<	Method m = testClass.getDeclaredMethod("suite",
223	<	new Class<?>[0]);
433	>	Method m = testClass.getDeclaredMethod("suite");
434		suite.addTest(newTestSuite((Test)m.invoke(null)));
435	<	} catch (Exception e) {
436	<	throw new Error("Missing test class", e);
435	>	} catch (ReflectiveOperationException e) {
436	>	throw new AssertionError("Missing test class", e);
437		}
438		}
439		}
#	Line 245 | Line 455 | public class JSR166TestCase extends Test
455		}
456		}
457
458	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
459	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
460	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
461	<	public static boolean atLeastJava9() {
462	<	// As of 2014-05, java9 still uses 52.0 class file version
463	<	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
464	<	}
458	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
459	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
460	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
461	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
462	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
463	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
464	>	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
465	>	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
466	>	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
467	>	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
468	>	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
469	>	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
470
471		/**
472		* Collects all JSR166 unit tests as one suite.
#	Line 272 | Line 487 | public class JSR166TestCase extends Test
487		AbstractQueuedLongSynchronizerTest.suite(),
488		ArrayBlockingQueueTest.suite(),
489		ArrayDequeTest.suite(),
490	+	ArrayListTest.suite(),
491		AtomicBooleanTest.suite(),
492		AtomicIntegerArrayTest.suite(),
493		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 294 | Line 510 | public class JSR166TestCase extends Test
510		CopyOnWriteArrayListTest.suite(),
511		CopyOnWriteArraySetTest.suite(),
512		CountDownLatchTest.suite(),
513	+	CountedCompleterTest.suite(),
514		CyclicBarrierTest.suite(),
515		DelayQueueTest.suite(),
516		EntryTest.suite(),
#	Line 301 | Line 518 | public class JSR166TestCase extends Test
518		ExecutorsTest.suite(),
519		ExecutorCompletionServiceTest.suite(),
520		FutureTaskTest.suite(),
521	+	HashtableTest.suite(),
522		LinkedBlockingDequeTest.suite(),
523		LinkedBlockingQueueTest.suite(),
524		LinkedListTest.suite(),
#	Line 322 | Line 540 | public class JSR166TestCase extends Test
540		TreeMapTest.suite(),
541		TreeSetTest.suite(),
542		TreeSubMapTest.suite(),
543	<	TreeSubSetTest.suite());
543	>	TreeSubSetTest.suite(),
544	>	VectorTest.suite());
545
546		// Java8+ test classes
547		if (atLeastJava8()) {
548		String[] java8TestClassNames = {
549	+	"ArrayDeque8Test",
550		"Atomic8Test",
551		"CompletableFutureTest",
552		"ConcurrentHashMap8Test",
553	<	"CountedCompleterTest",
553	>	"CountedCompleter8Test",
554		"DoubleAccumulatorTest",
555		"DoubleAdderTest",
556		"ForkJoinPool8Test",
557		"ForkJoinTask8Test",
558	+	"HashMapTest",
559	+	"LinkedBlockingDeque8Test",
560	+	"LinkedBlockingQueue8Test",
561	+	"LinkedHashMapTest",
562		"LongAccumulatorTest",
563		"LongAdderTest",
564		"SplittableRandomTest",
565		"StampedLockTest",
566	+	"SubmissionPublisherTest",
567		"ThreadLocalRandom8Test",
568	+	"TimeUnit8Test",
569		};
570		addNamedTestClasses(suite, java8TestClassNames);
571		}
#	Line 347 | Line 573 | public class JSR166TestCase extends Test
573		// Java9+ test classes
574		if (atLeastJava9()) {
575		String[] java9TestClassNames = {
576	<	"ThreadPoolExecutor9Test",
576	>	"AtomicBoolean9Test",
577	>	"AtomicInteger9Test",
578	>	"AtomicIntegerArray9Test",
579	>	"AtomicLong9Test",
580	>	"AtomicLongArray9Test",
581	>	"AtomicReference9Test",
582	>	"AtomicReferenceArray9Test",
583	>	"ExecutorCompletionService9Test",
584	>	"ForkJoinPool9Test",
585		};
586		addNamedTestClasses(suite, java9TestClassNames);
587		}
#	Line 355 | Line 589 | public class JSR166TestCase extends Test
589		return suite;
590		}
591
592	+	/** Returns list of junit-style test method names in given class. */
593	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
594	+	Method[] methods = testClass.getDeclaredMethods();
595	+	ArrayList<String> names = new ArrayList<>(methods.length);
596	+	for (Method method : methods) {
597	+	if (method.getName().startsWith("test")
598	+	&& Modifier.isPublic(method.getModifiers())
599	+	// method.getParameterCount() requires jdk8+
600	+	&& method.getParameterTypes().length == 0) {
601	+	names.add(method.getName());
602	+	}
603	+	}
604	+	return names;
605	+	}
606	+
607	+	/**
608	+	* Returns junit-style testSuite for the given test class, but
609	+	* parameterized by passing extra data to each test.
610	+	*/
611	+	public static <ExtraData> Test parameterizedTestSuite
612	+	(Class<? extends JSR166TestCase> testClass,
613	+	Class<ExtraData> dataClass,
614	+	ExtraData data) {
615	+	try {
616	+	TestSuite suite = new TestSuite();
617	+	Constructor c =
618	+	testClass.getDeclaredConstructor(dataClass, String.class);
619	+	for (String methodName : testMethodNames(testClass))
620	+	suite.addTest((Test) c.newInstance(data, methodName));
621	+	return suite;
622	+	} catch (ReflectiveOperationException e) {
623	+	throw new AssertionError(e);
624	+	}
625	+	}
626	+
627	+	/**
628	+	* Returns junit-style testSuite for the jdk8 extension of the
629	+	* given test class, but parameterized by passing extra data to
630	+	* each test.  Uses reflection to allow compilation in jdk7.
631	+	*/
632	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
633	+	(Class<? extends JSR166TestCase> testClass,
634	+	Class<ExtraData> dataClass,
635	+	ExtraData data) {
636	+	if (atLeastJava8()) {
637	+	String name = testClass.getName();
638	+	String name8 = name.replaceAll("Test$", "8Test");
639	+	if (name.equals(name8)) throw new AssertionError(name);
640	+	try {
641	+	return (Test)
642	+	Class.forName(name8)
643	+	.getMethod("testSuite", dataClass)
644	+	.invoke(null, data);
645	+	} catch (ReflectiveOperationException e) {
646	+	throw new AssertionError(e);
647	+	}
648	+	} else {
649	+	return new TestSuite();
650	+	}
651	+	}
652	+
653		// Delays for timing-dependent tests, in milliseconds.
654
655		public static long SHORT_DELAY_MS;
#	Line 363 | Line 658 | public class JSR166TestCase extends Test
658		public static long LONG_DELAY_MS;
659
660		/**
661	<	* Returns the shortest timed delay. This could
662	<	* be reimplemented to use for example a Property.
661	>	* A delay significantly longer than LONG_DELAY_MS.
662	>	* Use this in a thread that is waited for via awaitTermination(Thread).
663	>	*/
664	>	public static long LONGER_DELAY_MS;
665	>
666	>	private static final long RANDOM_TIMEOUT;
667	>	private static final long RANDOM_EXPIRED_TIMEOUT;
668	>	private static final TimeUnit RANDOM_TIMEUNIT;
669	>	static {
670	>	ThreadLocalRandom rnd = ThreadLocalRandom.current();
671	>	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
672	>	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
673	>	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
674	>	TimeUnit[] timeUnits = TimeUnit.values();
675	>	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
676	>	}
677	>
678	>	/**
679	>	* Returns a timeout for use when any value at all will do.
680	>	*/
681	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
682	>
683	>	/**
684	>	* Returns a timeout that means "no waiting", i.e. not positive.
685	>	*/
686	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
687	>
688	>	/**
689	>	* Returns a random non-null TimeUnit.
690	>	*/
691	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
692	>
693	>	/**
694	>	* Returns a random boolean; a "coin flip".
695	>	*/
696	>	static boolean randomBoolean() {
697	>	return ThreadLocalRandom.current().nextBoolean();
698	>	}
699	>
700	>	/**
701	>	* Returns a random element from given choices.
702	>	*/
703	>	<T> T chooseRandomly(T... choices) {
704	>	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
705	>	}
706	>
707	>	/**
708	>	* Returns the shortest timed delay. This can be scaled up for
709	>	* slow machines using the jsr166.delay.factor system property,
710	>	* or via jtreg's -timeoutFactor: flag.
711	>	* http://openjdk.java.net/jtreg/command-help.html
712		*/
713		protected long getShortDelay() {
714	<	return 50;
714	>	return (long) (50 * delayFactor);
715		}
716
717		/**
#	Line 378 | Line 722 | public class JSR166TestCase extends Test
722		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
723		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
724		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
725	+	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
726		}
727
728	+	private static final long TIMEOUT_DELAY_MS
729	+	= (long) (12.0 * Math.cbrt(delayFactor));
730	+
731		/**
732	<	* Returns a timeout in milliseconds to be used in tests that
733	<	* verify that operations block or time out.
732	>	* Returns a timeout in milliseconds to be used in tests that verify
733	>	* that operations block or time out.  We want this to be longer
734	>	* than the OS scheduling quantum, but not too long, so don't scale
735	>	* linearly with delayFactor; we use "crazy" cube root instead.
736		*/
737	<	long timeoutMillis() {
738	<	return SHORT_DELAY_MS / 4;
737	>	static long timeoutMillis() {
738	>	return TIMEOUT_DELAY_MS;
739		}
740
741		/**
742	<	* Returns a new Date instance representing a time delayMillis
743	<	* milliseconds in the future.
742	>	* Returns a new Date instance representing a time at least
743	>	* delayMillis milliseconds in the future.
744		*/
745		Date delayedDate(long delayMillis) {
746	<	return new Date(System.currentTimeMillis() + delayMillis);
746	>	// Add 1 because currentTimeMillis is known to round into the past.
747	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
748		}
749
750		/**
751		* The first exception encountered if any threadAssertXXX method fails.
752		*/
753		private final AtomicReference<Throwable> threadFailure
754	<	= new AtomicReference<Throwable>(null);
754	>	= new AtomicReference<>(null);
755
756		/**
757		* Records an exception so that it can be rethrown later in the test
#	Line 409 | Line 760 | public class JSR166TestCase extends Test
760		* the same test have no effect.
761		*/
762		public void threadRecordFailure(Throwable t) {
763	<	threadFailure.compareAndSet(null, t);
763	>	System.err.println(t);
764	>	if (threadFailure.compareAndSet(null, t))
765	>	dumpTestThreads();
766		}
767
768		public void setUp() {
769		setDelays();
770		}
771
772	+	void tearDownFail(String format, Object... args) {
773	+	String msg = toString() + ": " + String.format(format, args);
774	+	System.err.println(msg);
775	+	dumpTestThreads();
776	+	throw new AssertionError(msg);
777	+	}
778	+
779		/**
780		* Extra checks that get done for all test cases.
781		*
#	Line 434 | Line 794 | public class JSR166TestCase extends Test
794		throw (RuntimeException) t;
795		else if (t instanceof Exception)
796		throw (Exception) t;
797	<	else {
798	<	AssertionFailedError afe =
439	<	new AssertionFailedError(t.toString());
440	<	afe.initCause(t);
441	<	throw afe;
442	<	}
797	>	else
798	>	throw new AssertionError(t.toString(), t);
799		}
800
801		if (Thread.interrupted())
802	<	throw new AssertionFailedError("interrupt status set in main thread");
802	>	tearDownFail("interrupt status set in main thread");
803
804		checkForkJoinPoolThreadLeaks();
805		}
806
807		/**
808	<	* Find missing try { ... } finally { joinPool(e); }
808	>	* Finds missing PoolCleaners
809		*/
810		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
811	<	Thread[] survivors = new Thread[5];
811	>	Thread[] survivors = new Thread[7];
812		int count = Thread.enumerate(survivors);
813		for (int i = 0; i < count; i++) {
814		Thread thread = survivors[i];
#	Line 460 | Line 816 | public class JSR166TestCase extends Test
816		if (name.startsWith("ForkJoinPool-")) {
817		// give thread some time to terminate
818		thread.join(LONG_DELAY_MS);
819	<	if (!thread.isAlive()) continue;
820	<	thread.stop();
821	<	throw new AssertionFailedError
466	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
467	<	toString(), name));
819	>	if (thread.isAlive())
820	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
821	>	thread);
822		}
823		}
824	+
825	+	if (!ForkJoinPool.commonPool()
826	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
827	+	tearDownFail("ForkJoin common pool thread stuck");
828		}
829
830		/**
831		* Just like fail(reason), but additionally recording (using
832	<	* threadRecordFailure) any AssertionFailedError thrown, so that
833	<	* the current testcase will fail.
832	>	* threadRecordFailure) any AssertionError thrown, so that the
833	>	* current testcase will fail.
834		*/
835		public void threadFail(String reason) {
836		try {
837		fail(reason);
838	<	} catch (AssertionFailedError t) {
839	<	threadRecordFailure(t);
840	<	fail(reason);
838	>	} catch (AssertionError fail) {
839	>	threadRecordFailure(fail);
840	>	throw fail;
841		}
842		}
843
844		/**
845		* Just like assertTrue(b), but additionally recording (using
846	<	* threadRecordFailure) any AssertionFailedError thrown, so that
847	<	* the current testcase will fail.
846	>	* threadRecordFailure) any AssertionError thrown, so that the
847	>	* current testcase will fail.
848		*/
849		public void threadAssertTrue(boolean b) {
850		try {
851		assertTrue(b);
852	<	} catch (AssertionFailedError t) {
853	<	threadRecordFailure(t);
854	<	throw t;
852	>	} catch (AssertionError fail) {
853	>	threadRecordFailure(fail);
854	>	throw fail;
855		}
856		}
857
858		/**
859		* Just like assertFalse(b), but additionally recording (using
860	<	* threadRecordFailure) any AssertionFailedError thrown, so that
861	<	* the current testcase will fail.
860	>	* threadRecordFailure) any AssertionError thrown, so that the
861	>	* current testcase will fail.
862		*/
863		public void threadAssertFalse(boolean b) {
864		try {
865		assertFalse(b);
866	<	} catch (AssertionFailedError t) {
867	<	threadRecordFailure(t);
868	<	throw t;
866	>	} catch (AssertionError fail) {
867	>	threadRecordFailure(fail);
868	>	throw fail;
869		}
870		}
871
872		/**
873		* Just like assertNull(x), but additionally recording (using
874	<	* threadRecordFailure) any AssertionFailedError thrown, so that
875	<	* the current testcase will fail.
874	>	* threadRecordFailure) any AssertionError thrown, so that the
875	>	* current testcase will fail.
876		*/
877		public void threadAssertNull(Object x) {
878		try {
879		assertNull(x);
880	<	} catch (AssertionFailedError t) {
881	<	threadRecordFailure(t);
882	<	throw t;
880	>	} catch (AssertionError fail) {
881	>	threadRecordFailure(fail);
882	>	throw fail;
883		}
884		}
885
886		/**
887		* Just like assertEquals(x, y), but additionally recording (using
888	<	* threadRecordFailure) any AssertionFailedError thrown, so that
889	<	* the current testcase will fail.
888	>	* threadRecordFailure) any AssertionError thrown, so that the
889	>	* current testcase will fail.
890		*/
891		public void threadAssertEquals(long x, long y) {
892		try {
893		assertEquals(x, y);
894	<	} catch (AssertionFailedError t) {
895	<	threadRecordFailure(t);
896	<	throw t;
894	>	} catch (AssertionError fail) {
895	>	threadRecordFailure(fail);
896	>	throw fail;
897		}
898		}
899
900		/**
901		* Just like assertEquals(x, y), but additionally recording (using
902	<	* threadRecordFailure) any AssertionFailedError thrown, so that
903	<	* the current testcase will fail.
902	>	* threadRecordFailure) any AssertionError thrown, so that the
903	>	* current testcase will fail.
904		*/
905		public void threadAssertEquals(Object x, Object y) {
906		try {
907		assertEquals(x, y);
908	<	} catch (AssertionFailedError t) {
909	<	threadRecordFailure(t);
910	<	throw t;
911	<	} catch (Throwable t) {
912	<	threadUnexpectedException(t);
908	>	} catch (AssertionError fail) {
909	>	threadRecordFailure(fail);
910	>	throw fail;
911	>	} catch (Throwable fail) {
912	>	threadUnexpectedException(fail);
913		}
914		}
915
916		/**
917		* Just like assertSame(x, y), but additionally recording (using
918	<	* threadRecordFailure) any AssertionFailedError thrown, so that
919	<	* the current testcase will fail.
918	>	* threadRecordFailure) any AssertionError thrown, so that the
919	>	* current testcase will fail.
920		*/
921		public void threadAssertSame(Object x, Object y) {
922		try {
923		assertSame(x, y);
924	<	} catch (AssertionFailedError t) {
925	<	threadRecordFailure(t);
926	<	throw t;
924	>	} catch (AssertionError fail) {
925	>	threadRecordFailure(fail);
926	>	throw fail;
927		}
928		}
929
#	Line 585 | Line 943 | public class JSR166TestCase extends Test
943
944		/**
945		* Records the given exception using {@link #threadRecordFailure},
946	<	* then rethrows the exception, wrapping it in an
947	<	* AssertionFailedError if necessary.
946	>	* then rethrows the exception, wrapping it in an AssertionError
947	>	* if necessary.
948		*/
949		public void threadUnexpectedException(Throwable t) {
950		threadRecordFailure(t);
#	Line 595 | Line 953 | public class JSR166TestCase extends Test
953		throw (RuntimeException) t;
954		else if (t instanceof Error)
955		throw (Error) t;
956	<	else {
957	<	AssertionFailedError afe =
600	<	new AssertionFailedError("unexpected exception: " + t);
601	<	afe.initCause(t);
602	<	throw afe;
603	<	}
956	>	else
957	>	throw new AssertionError("unexpected exception: " + t, t);
958		}
959
960		/**
961		* Delays, via Thread.sleep, for the given millisecond delay, but
962		* if the sleep is shorter than specified, may re-sleep or yield
963	<	* until time elapses.
963	>	* until time elapses.  Ensures that the given time, as measured
964	>	* by System.nanoTime(), has elapsed.
965		*/
966		static void delay(long millis) throws InterruptedException {
967	<	long startTime = System.nanoTime();
968	<	long ns = millis * 1000 * 1000;
969	<	for (;;) {
967	>	long nanos = millis * (1000 * 1000);
968	>	final long wakeupTime = System.nanoTime() + nanos;
969	>	do {
970		if (millis > 0L)
971		Thread.sleep(millis);
972		else // too short to sleep
973		Thread.yield();
974	<	long d = ns - (System.nanoTime() - startTime);
975	<	if (d > 0L)
976	<	millis = d / (1000 * 1000);
977	<	else
978	<	break;
974	>	nanos = wakeupTime - System.nanoTime();
975	>	millis = nanos / (1000 * 1000);
976	>	} while (nanos >= 0L);
977	>	}
978	>
979	>	/**
980	>	* Allows use of try-with-resources with per-test thread pools.
981	>	*/
982	>	class PoolCleaner implements AutoCloseable {
983	>	private final ExecutorService pool;
984	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
985	>	public void close() { joinPool(pool); }
986	>	}
987	>
988	>	/**
989	>	* An extension of PoolCleaner that has an action to release the pool.
990	>	*/
991	>	class PoolCleanerWithReleaser extends PoolCleaner {
992	>	private final Runnable releaser;
993	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
994	>	super(pool);
995	>	this.releaser = releaser;
996	>	}
997	>	public void close() {
998	>	try {
999	>	releaser.run();
1000	>	} finally {
1001	>	super.close();
1002	>	}
1003		}
1004		}
1005
1006	+	PoolCleaner cleaner(ExecutorService pool) {
1007	+	return new PoolCleaner(pool);
1008	+	}
1009	+
1010	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
1011	+	return new PoolCleanerWithReleaser(pool, releaser);
1012	+	}
1013	+
1014	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1015	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
1016	+	}
1017	+
1018	+	Runnable releaser(final CountDownLatch latch) {
1019	+	return new Runnable() { public void run() {
1020	+	do { latch.countDown(); }
1021	+	while (latch.getCount() > 0);
1022	+	}};
1023	+	}
1024	+
1025	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1026	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1027	+	}
1028	+
1029	+	Runnable releaser(final AtomicBoolean flag) {
1030	+	return new Runnable() { public void run() { flag.set(true); }};
1031	+	}
1032	+
1033		/**
1034		* Waits out termination of a thread pool or fails doing so.
1035		*/
1036	<	void joinPool(ExecutorService exec) {
1036	>	void joinPool(ExecutorService pool) {
1037		try {
1038	<	exec.shutdown();
1039	<	assertTrue("ExecutorService did not terminate in a timely manner",
1040	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
1038	>	pool.shutdown();
1039	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1040	>	try {
1041	>	threadFail("ExecutorService " + pool +
1042	>	" did not terminate in a timely manner");
1043	>	} finally {
1044	>	// last resort, for the benefit of subsequent tests
1045	>	pool.shutdownNow();
1046	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1047	>	}
1048	>	}
1049		} catch (SecurityException ok) {
1050		// Allowed in case test doesn't have privs
1051	<	} catch (InterruptedException ie) {
1052	<	fail("Unexpected InterruptedException");
1051	>	} catch (InterruptedException fail) {
1052	>	threadFail("Unexpected InterruptedException");
1053		}
1054		}
1055
1056		/**
1057	<	* A debugging tool to print all stack traces, as jstack does.
1057	>	* Like Runnable, but with the freedom to throw anything.
1058	>	* junit folks had the same idea:
1059	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1060		*/
1061	<	static void printAllStackTraces() {
646	<	for (ThreadInfo info :
647	<	ManagementFactory.getThreadMXBean()
648	<	.dumpAllThreads(true, true))
649	<	System.err.print(info);
650	<	}
1061	>	interface Action { public void run() throws Throwable; }
1062
1063		/**
1064	<	* Checks that thread does not terminate within the default
1065	<	* millisecond delay of {@code timeoutMillis()}.
1064	>	* Runs all the given actions in parallel, failing if any fail.
1065	>	* Useful for running multiple variants of tests that are
1066	>	* necessarily individually slow because they must block.
1067		*/
1068	<	void assertThreadStaysAlive(Thread thread) {
1069	<	assertThreadStaysAlive(thread, timeoutMillis());
1068	>	void testInParallel(Action ... actions) {
1069	>	ExecutorService pool = Executors.newCachedThreadPool();
1070	>	try (PoolCleaner cleaner = cleaner(pool)) {
1071	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1072	>	for (final Action action : actions)
1073	>	futures.add(pool.submit(new CheckedRunnable() {
1074	>	public void realRun() throws Throwable { action.run();}}));
1075	>	for (Future<?> future : futures)
1076	>	try {
1077	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1078	>	} catch (ExecutionException ex) {
1079	>	threadUnexpectedException(ex.getCause());
1080	>	} catch (Exception ex) {
1081	>	threadUnexpectedException(ex);
1082	>	}
1083	>	}
1084		}
1085
1086	<	/**
1087	<	* Checks that thread does not terminate within the given millisecond delay.
1088	<	*/
1089	<	void assertThreadStaysAlive(Thread thread, long millis) {
1090	<	try {
1091	<	// No need to optimize the failing case via Thread.join.
1092	<	delay(millis);
1093	<	assertTrue(thread.isAlive());
1094	<	} catch (InterruptedException ie) {
1095	<	fail("Unexpected InterruptedException");
1096	<	}
1086	>	/** Returns true if thread info might be useful in a thread dump. */
1087	>	static boolean threadOfInterest(ThreadInfo info) {
1088	>	final String name = info.getThreadName();
1089	>	String lockName;
1090	>	if (name == null)
1091	>	return true;
1092	>	if (name.equals("Signal Dispatcher")
1093	>	|| name.equals("WedgedTestDetector"))
1094	>	return false;
1095	>	if (name.equals("Reference Handler")) {
1096	>	// Reference Handler stacktrace changed in JDK-8156500
1097	>	StackTraceElement[] stackTrace; String methodName;
1098	>	if ((stackTrace = info.getStackTrace()) != null
1099	>	&& stackTrace.length > 0
1100	>	&& (methodName = stackTrace[0].getMethodName()) != null
1101	>	&& methodName.equals("waitForReferencePendingList"))
1102	>	return false;
1103	>	// jdk8 Reference Handler stacktrace
1104	>	if ((lockName = info.getLockName()) != null
1105	>	&& lockName.startsWith("java.lang.ref"))
1106	>	return false;
1107	>	}
1108	>	if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1109	>	&& (lockName = info.getLockName()) != null
1110	>	&& lockName.startsWith("java.lang.ref"))
1111	>	return false;
1112	>	if (name.startsWith("ForkJoinPool.commonPool-worker")
1113	>	&& (lockName = info.getLockName()) != null
1114	>	&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1115	>	return false;
1116	>	return true;
1117		}
1118
1119		/**
1120	<	* Checks that the threads do not terminate within the default
1121	<	* millisecond delay of {@code timeoutMillis()}.
1120	>	* A debugging tool to print stack traces of most threads, as jstack does.
1121	>	* Uninteresting threads are filtered out.
1122		*/
1123	<	void assertThreadsStayAlive(Thread... threads) {
1124	<	assertThreadsStayAlive(timeoutMillis(), threads);
1123	>	static void dumpTestThreads() {
1124	>	SecurityManager sm = System.getSecurityManager();
1125	>	if (sm != null) {
1126	>	try {
1127	>	System.setSecurityManager(null);
1128	>	} catch (SecurityException giveUp) {
1129	>	return;
1130	>	}
1131	>	}
1132	>
1133	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1134	>	System.err.println("------ stacktrace dump start ------");
1135	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true))
1136	>	if (threadOfInterest(info))
1137	>	System.err.print(info);
1138	>	System.err.println("------ stacktrace dump end ------");
1139	>
1140	>	if (sm != null) System.setSecurityManager(sm);
1141		}
1142
1143		/**
1144	<	* Checks that the threads do not terminate within the given millisecond delay.
1145	<	*/
1146	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1147	<	try {
1148	<	// No need to optimize the failing case via Thread.join.
1149	<	delay(millis);
1150	<	for (Thread thread : threads)
1151	<	assertTrue(thread.isAlive());
1152	<	} catch (InterruptedException ie) {
1153	<	fail("Unexpected InterruptedException");
1144	>	* Checks that thread eventually enters the expected blocked thread state.
1145	>	*/
1146	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1147	>	// always sleep at least 1 ms, with high probability avoiding
1148	>	// transitory states
1149	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1150	>	try { delay(1); }
1151	>	catch (InterruptedException fail) {
1152	>	throw new AssertionError("Unexpected InterruptedException", fail);
1153	>	}
1154	>	Thread.State s = thread.getState();
1155	>	if (s == expected)
1156	>	return;
1157	>	else if (s == Thread.State.TERMINATED)
1158	>	fail("Unexpected thread termination");
1159		}
1160	+	fail("timed out waiting for thread to enter thread state " + expected);
1161		}
1162
1163		/**
#	Line 709 | Line 1177 | public class JSR166TestCase extends Test
1177		future.get(timeoutMillis, MILLISECONDS);
1178		shouldThrow();
1179		} catch (TimeoutException success) {
1180	<	} catch (Exception e) {
1181	<	threadUnexpectedException(e);
1180	>	} catch (Exception fail) {
1181	>	threadUnexpectedException(fail);
1182		} finally { future.cancel(true); }
1183		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1184		}
#	Line 730 | Line 1198 | public class JSR166TestCase extends Test
1198		}
1199
1200		/**
1201	+	* The maximum number of consecutive spurious wakeups we should
1202	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1203	+	*/
1204	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1205	+
1206	+	/**
1207		* The number of elements to place in collections, arrays, etc.
1208		*/
1209		public static final int SIZE = 20;
#	Line 833 | Line 1307 | public class JSR166TestCase extends Test
1307		}
1308		public void refresh() {}
1309		public String toString() {
1310	<	List<Permission> ps = new ArrayList<Permission>();
1310	>	List<Permission> ps = new ArrayList<>();
1311		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1312		ps.add(e.nextElement());
1313		return "AdjustablePolicy with permissions " + ps;
#	Line 861 | Line 1335 | public class JSR166TestCase extends Test
1335
1336		/**
1337		* Sleeps until the given time has elapsed.
1338	<	* Throws AssertionFailedError if interrupted.
1338	>	* Throws AssertionError if interrupted.
1339		*/
1340	<	void sleep(long millis) {
1340	>	static void sleep(long millis) {
1341		try {
1342		delay(millis);
1343	<	} catch (InterruptedException ie) {
1344	<	AssertionFailedError afe =
871	<	new AssertionFailedError("Unexpected InterruptedException");
872	<	afe.initCause(ie);
873	<	throw afe;
1343	>	} catch (InterruptedException fail) {
1344	>	throw new AssertionError("Unexpected InterruptedException", fail);
1345		}
1346		}
1347
1348		/**
1349		* Spin-waits up to the specified number of milliseconds for the given
1350		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1351	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1352		*/
1353	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1354	<	long startTime = System.nanoTime();
1355	<	for (;;) {
1356	<	Thread.State s = thread.getState();
1357	<	if (s == Thread.State.BLOCKED ||
1358	<	s == Thread.State.WAITING ||
1359	<	s == Thread.State.TIMED_WAITING)
1360	<	return;
1361	<	else if (s == Thread.State.TERMINATED)
1353	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1354	>	Callable<Boolean> waitingForGodot) {
1355	>	for (long startTime = 0L;;) {
1356	>	switch (thread.getState()) {
1357	>	default: break;
1358	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1359	>	try {
1360	>	if (waitingForGodot == null || waitingForGodot.call())
1361	>	return;
1362	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1363	>	break;
1364	>	case TERMINATED:
1365		fail("Unexpected thread termination");
1366	+	}
1367	+
1368	+	if (startTime == 0L)
1369	+	startTime = System.nanoTime();
1370		else if (millisElapsedSince(startTime) > timeoutMillis) {
1371	<	threadAssertTrue(thread.isAlive());
1372	<	return;
1371	>	assertTrue(thread.isAlive());
1372	>	if (waitingForGodot == null
1373	>	|| thread.getState() == Thread.State.RUNNABLE)
1374	>	fail("timed out waiting for thread to enter wait state");
1375	>	else
1376	>	fail("timed out waiting for condition, thread state="
1377	>	+ thread.getState());
1378		}
1379		Thread.yield();
1380		}
1381		}
1382
1383		/**
1384	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1385	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1384	>	* Spin-waits up to the specified number of milliseconds for the given
1385	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1386	>	*/
1387	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1388	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1389	>	}
1390	>
1391	>	/**
1392	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1393	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1394		*/
1395		void waitForThreadToEnterWaitState(Thread thread) {
1396	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1396	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1397	>	}
1398	>
1399	>	/**
1400	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1401	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1402	>	* and additionally satisfy the given condition.
1403	>	*/
1404	>	void waitForThreadToEnterWaitState(Thread thread,
1405	>	Callable<Boolean> waitingForGodot) {
1406	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1407	>	}
1408	>
1409	>	/**
1410	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1411	>	* be interrupted.  Clears the interrupt status before returning.
1412	>	*/
1413	>	void awaitInterrupted() {
1414	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1415	>	if (startTime == 0L)
1416	>	startTime = System.nanoTime();
1417	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1418	>	fail("timed out waiting for thread interrupt");
1419	>	Thread.yield();
1420	>	}
1421		}
1422
1423		/**
1424		* Returns the number of milliseconds since time given by
1425		* startNanoTime, which must have been previously returned from a
1426	<	* call to {@link System.nanoTime()}.
1426	>	* call to {@link System#nanoTime()}.
1427		*/
1428		static long millisElapsedSince(long startNanoTime) {
1429		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1430		}
1431
1432		/**
1433	+	* Checks that timed f.get() returns the expected value, and does not
1434	+	* wait for the timeout to elapse before returning.
1435	+	*/
1436	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1437	+	long startTime = System.nanoTime();
1438	+	T actual = null;
1439	+	try {
1440	+	actual = f.get(timeoutMillis, MILLISECONDS);
1441	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1442	+	assertEquals(expectedValue, actual);
1443	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1444	+	throw new AssertionError("timed get did not return promptly");
1445	+	}
1446	+
1447	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1448	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1449	+	}
1450	+
1451	+	/**
1452		* Returns a new started daemon Thread running the given runnable.
1453		*/
1454		Thread newStartedThread(Runnable runnable) {
#	Line 928 | Line 1463 | public class JSR166TestCase extends Test
1463		* to terminate (using {@link Thread#join(long)}), else interrupts
1464		* the thread (in the hope that it may terminate later) and fails.
1465		*/
1466	<	void awaitTermination(Thread t, long timeoutMillis) {
1466	>	void awaitTermination(Thread thread, long timeoutMillis) {
1467		try {
1468	<	t.join(timeoutMillis);
1469	<	} catch (InterruptedException ie) {
1470	<	threadUnexpectedException(ie);
1471	<	} finally {
1472	<	if (t.getState() != Thread.State.TERMINATED) {
1473	<	t.interrupt();
1474	<	fail("Test timed out");
1468	>	thread.join(timeoutMillis);
1469	>	} catch (InterruptedException fail) {
1470	>	threadUnexpectedException(fail);
1471	>	}
1472	>	if (thread.getState() != Thread.State.TERMINATED) {
1473	>	String detail = String.format(
1474	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1475	>	thread, thread.getState());
1476	>	try {
1477	>	threadFail(detail);
1478	>	} finally {
1479	>	// Interrupt thread __after__ having reported its stack trace
1480	>	thread.interrupt();
1481		}
1482		}
1483		}
#	Line 958 | Line 1499 | public class JSR166TestCase extends Test
1499		public final void run() {
1500		try {
1501		realRun();
1502	<	} catch (Throwable t) {
1503	<	threadUnexpectedException(t);
963	<	}
964	<	}
965	<	}
966	<
967	<	public abstract class RunnableShouldThrow implements Runnable {
968	<	protected abstract void realRun() throws Throwable;
969	<
970	<	final Class<?> exceptionClass;
971	<
972	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
973	<	this.exceptionClass = exceptionClass;
974	<	}
975	<
976	<	public final void run() {
977	<	try {
978	<	realRun();
979	<	threadShouldThrow(exceptionClass.getSimpleName());
980	<	} catch (Throwable t) {
981	<	if (! exceptionClass.isInstance(t))
982	<	threadUnexpectedException(t);
1502	>	} catch (Throwable fail) {
1503	>	threadUnexpectedException(fail);
1504		}
1505		}
1506		}
#	Line 996 | Line 1517 | public class JSR166TestCase extends Test
1517		public final void run() {
1518		try {
1519		realRun();
999	–	threadShouldThrow(exceptionClass.getSimpleName());
1520		} catch (Throwable t) {
1521		if (! exceptionClass.isInstance(t))
1522		threadUnexpectedException(t);
1523	+	return;
1524		}
1525	+	threadShouldThrow(exceptionClass.getSimpleName());
1526		}
1527		}
1528
#	Line 1010 | Line 1532 | public class JSR166TestCase extends Test
1532		public final void run() {
1533		try {
1534		realRun();
1013	–	threadShouldThrow("InterruptedException");
1535		} catch (InterruptedException success) {
1536		threadAssertFalse(Thread.interrupted());
1537	<	} catch (Throwable t) {
1538	<	threadUnexpectedException(t);
1537	>	return;
1538	>	} catch (Throwable fail) {
1539	>	threadUnexpectedException(fail);
1540		}
1541	+	threadShouldThrow("InterruptedException");
1542		}
1543		}
1544
#	Line 1025 | Line 1548 | public class JSR166TestCase extends Test
1548		public final T call() {
1549		try {
1550		return realCall();
1551	<	} catch (Throwable t) {
1552	<	threadUnexpectedException(t);
1030	<	return null;
1551	>	} catch (Throwable fail) {
1552	>	threadUnexpectedException(fail);
1553		}
1554	<	}
1033	<	}
1034	<
1035	<	public abstract class CheckedInterruptedCallable<T>
1036	<	implements Callable<T> {
1037	<	protected abstract T realCall() throws Throwable;
1038	<
1039	<	public final T call() {
1040	<	try {
1041	<	T result = realCall();
1042	<	threadShouldThrow("InterruptedException");
1043	<	return result;
1044	<	} catch (InterruptedException success) {
1045	<	threadAssertFalse(Thread.interrupted());
1046	<	} catch (Throwable t) {
1047	<	threadUnexpectedException(t);
1048	<	}
1049	<	return null;
1554	>	throw new AssertionError("unreached");
1555		}
1556		}
1557
#	Line 1061 | Line 1566 | public class JSR166TestCase extends Test
1566		public static final String TEST_STRING = "a test string";
1567
1568		public static class StringTask implements Callable<String> {
1569	<	public String call() { return TEST_STRING; }
1569	>	final String value;
1570	>	public StringTask() { this(TEST_STRING); }
1571	>	public StringTask(String value) { this.value = value; }
1572	>	public String call() { return value; }
1573		}
1574
1575		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 1074 | Line 1582 | public class JSR166TestCase extends Test
1582		}};
1583		}
1584
1585	<	public Runnable awaiter(final CountDownLatch latch) {
1585	>	public Runnable countDowner(final CountDownLatch latch) {
1586		return new CheckedRunnable() {
1587		public void realRun() throws InterruptedException {
1588	<	await(latch);
1588	>	latch.countDown();
1589		}};
1590		}
1591
1592	+	class LatchAwaiter extends CheckedRunnable {
1593	+	static final int NEW = 0;
1594	+	static final int RUNNING = 1;
1595	+	static final int DONE = 2;
1596	+	final CountDownLatch latch;
1597	+	int state = NEW;
1598	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1599	+	public void realRun() throws InterruptedException {
1600	+	state = 1;
1601	+	await(latch);
1602	+	state = 2;
1603	+	}
1604	+	}
1605	+
1606	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1607	+	return new LatchAwaiter(latch);
1608	+	}
1609	+
1610	+	public void await(CountDownLatch latch, long timeoutMillis) {
1611	+	boolean timedOut = false;
1612	+	try {
1613	+	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1614	+	} catch (Throwable fail) {
1615	+	threadUnexpectedException(fail);
1616	+	}
1617	+	if (timedOut)
1618	+	fail("timed out waiting for CountDownLatch for "
1619	+	+ (timeoutMillis/1000) + " sec");
1620	+	}
1621	+
1622		public void await(CountDownLatch latch) {
1623	+	await(latch, LONG_DELAY_MS);
1624	+	}
1625	+
1626	+	public void await(Semaphore semaphore) {
1627	+	boolean timedOut = false;
1628		try {
1629	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1630	<	} catch (Throwable t) {
1631	<	threadUnexpectedException(t);
1629	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1630	>	} catch (Throwable fail) {
1631	>	threadUnexpectedException(fail);
1632		}
1633	+	if (timedOut)
1634	+	fail("timed out waiting for Semaphore for "
1635	+	+ (LONG_DELAY_MS/1000) + " sec");
1636		}
1637
1638	<	public void await(Semaphore semaphore) {
1638	>	public void await(CyclicBarrier barrier) {
1639		try {
1640	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1641	<	} catch (Throwable t) {
1642	<	threadUnexpectedException(t);
1640	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1641	>	} catch (Throwable fail) {
1642	>	threadUnexpectedException(fail);
1643		}
1644		}
1645
#	Line 1111 | Line 1657 | public class JSR166TestCase extends Test
1657		//         long startTime = System.nanoTime();
1658		//         while (!flag.get()) {
1659		//             if (millisElapsedSince(startTime) > timeoutMillis)
1660	<	//                 throw new AssertionFailedError("timed out");
1660	>	//                 throw new AssertionError("timed out");
1661		//             Thread.yield();
1662		//         }
1663		//     }
#	Line 1120 | Line 1666 | public class JSR166TestCase extends Test
1666		public String call() { throw new NullPointerException(); }
1667		}
1668
1123	–	public static class CallableOne implements Callable<Integer> {
1124	–	public Integer call() { return one; }
1125	–	}
1126	–
1127	–	public class ShortRunnable extends CheckedRunnable {
1128	–	protected void realRun() throws Throwable {
1129	–	delay(SHORT_DELAY_MS);
1130	–	}
1131	–	}
1132	–
1133	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1134	–	protected void realRun() throws InterruptedException {
1135	–	delay(SHORT_DELAY_MS);
1136	–	}
1137	–	}
1138	–
1139	–	public class SmallRunnable extends CheckedRunnable {
1140	–	protected void realRun() throws Throwable {
1141	–	delay(SMALL_DELAY_MS);
1142	–	}
1143	–	}
1144	–
1145	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1146	–	protected void realRun() {
1147	–	try {
1148	–	delay(SMALL_DELAY_MS);
1149	–	} catch (InterruptedException ok) {}
1150	–	}
1151	–	}
1152	–
1153	–	public class SmallCallable extends CheckedCallable {
1154	–	protected Object realCall() throws InterruptedException {
1155	–	delay(SMALL_DELAY_MS);
1156	–	return Boolean.TRUE;
1157	–	}
1158	–	}
1159	–
1160	–	public class MediumRunnable extends CheckedRunnable {
1161	–	protected void realRun() throws Throwable {
1162	–	delay(MEDIUM_DELAY_MS);
1163	–	}
1164	–	}
1165	–
1166	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1167	–	protected void realRun() throws InterruptedException {
1168	–	delay(MEDIUM_DELAY_MS);
1169	–	}
1170	–	}
1171	–
1669		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1670		return new CheckedRunnable() {
1671		protected void realRun() {
#	Line 1178 | Line 1675 | public class JSR166TestCase extends Test
1675		}};
1676		}
1677
1181	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1182	–	protected void realRun() {
1183	–	try {
1184	–	delay(MEDIUM_DELAY_MS);
1185	–	} catch (InterruptedException ok) {}
1186	–	}
1187	–	}
1188	–
1189	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1190	–	protected void realRun() {
1191	–	try {
1192	–	delay(LONG_DELAY_MS);
1193	–	} catch (InterruptedException ok) {}
1194	–	}
1195	–	}
1196	–
1678		/**
1679		* For use as ThreadFactory in constructors
1680		*/
#	Line 1207 | Line 1688 | public class JSR166TestCase extends Test
1688		boolean isDone();
1689		}
1690
1210	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1211	–	return new TrackedRunnable() {
1212	–	private volatile boolean done = false;
1213	–	public boolean isDone() { return done; }
1214	–	public void run() {
1215	–	try {
1216	–	delay(timeoutMillis);
1217	–	done = true;
1218	–	} catch (InterruptedException ok) {}
1219	–	}
1220	–	};
1221	–	}
1222	–
1223	–	public static class TrackedShortRunnable implements Runnable {
1224	–	public volatile boolean done = false;
1225	–	public void run() {
1226	–	try {
1227	–	delay(SHORT_DELAY_MS);
1228	–	done = true;
1229	–	} catch (InterruptedException ok) {}
1230	–	}
1231	–	}
1232	–
1233	–	public static class TrackedSmallRunnable implements Runnable {
1234	–	public volatile boolean done = false;
1235	–	public void run() {
1236	–	try {
1237	–	delay(SMALL_DELAY_MS);
1238	–	done = true;
1239	–	} catch (InterruptedException ok) {}
1240	–	}
1241	–	}
1242	–
1243	–	public static class TrackedMediumRunnable implements Runnable {
1244	–	public volatile boolean done = false;
1245	–	public void run() {
1246	–	try {
1247	–	delay(MEDIUM_DELAY_MS);
1248	–	done = true;
1249	–	} catch (InterruptedException ok) {}
1250	–	}
1251	–	}
1252	–
1253	–	public static class TrackedLongRunnable implements Runnable {
1254	–	public volatile boolean done = false;
1255	–	public void run() {
1256	–	try {
1257	–	delay(LONG_DELAY_MS);
1258	–	done = true;
1259	–	} catch (InterruptedException ok) {}
1260	–	}
1261	–	}
1262	–
1691		public static class TrackedNoOpRunnable implements Runnable {
1692		public volatile boolean done = false;
1693		public void run() {
#	Line 1267 | Line 1695 | public class JSR166TestCase extends Test
1695		}
1696		}
1697
1270	–	public static class TrackedCallable implements Callable {
1271	–	public volatile boolean done = false;
1272	–	public Object call() {
1273	–	try {
1274	–	delay(SMALL_DELAY_MS);
1275	–	done = true;
1276	–	} catch (InterruptedException ok) {}
1277	–	return Boolean.TRUE;
1278	–	}
1279	–	}
1280	–
1698		/**
1699		* Analog of CheckedRunnable for RecursiveAction
1700		*/
#	Line 1287 | Line 1704 | public class JSR166TestCase extends Test
1704		@Override protected final void compute() {
1705		try {
1706		realCompute();
1707	<	} catch (Throwable t) {
1708	<	threadUnexpectedException(t);
1707	>	} catch (Throwable fail) {
1708	>	threadUnexpectedException(fail);
1709		}
1710		}
1711		}
#	Line 1302 | Line 1719 | public class JSR166TestCase extends Test
1719		@Override protected final T compute() {
1720		try {
1721		return realCompute();
1722	<	} catch (Throwable t) {
1723	<	threadUnexpectedException(t);
1307	<	return null;
1722	>	} catch (Throwable fail) {
1723	>	threadUnexpectedException(fail);
1724		}
1725	+	throw new AssertionError("unreached");
1726		}
1727		}
1728
#	Line 1319 | Line 1736 | public class JSR166TestCase extends Test
1736
1737		/**
1738		* A CyclicBarrier that uses timed await and fails with
1739	<	* AssertionFailedErrors instead of throwing checked exceptions.
1739	>	* AssertionErrors instead of throwing checked exceptions.
1740		*/
1741	<	public class CheckedBarrier extends CyclicBarrier {
1741	>	public static class CheckedBarrier extends CyclicBarrier {
1742		public CheckedBarrier(int parties) { super(parties); }
1743
1744		public int await() {
1745		try {
1746		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1747	<	} catch (TimeoutException e) {
1748	<	throw new AssertionFailedError("timed out");
1749	<	} catch (Exception e) {
1750	<	AssertionFailedError afe =
1334	<	new AssertionFailedError("Unexpected exception: " + e);
1335	<	afe.initCause(e);
1336	<	throw afe;
1747	>	} catch (TimeoutException timedOut) {
1748	>	throw new AssertionError("timed out");
1749	>	} catch (Exception fail) {
1750	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1751		}
1752		}
1753		}
#	Line 1344 | Line 1758 | public class JSR166TestCase extends Test
1758		assertEquals(0, q.size());
1759		assertNull(q.peek());
1760		assertNull(q.poll());
1761	<	assertNull(q.poll(0, MILLISECONDS));
1761	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1762		assertEquals(q.toString(), "[]");
1763		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1764		assertFalse(q.iterator().hasNext());
#	Line 1360 | Line 1774 | public class JSR166TestCase extends Test
1774		q.remove();
1775		shouldThrow();
1776		} catch (NoSuchElementException success) {}
1777	<	} catch (InterruptedException ie) {
1364	<	threadUnexpectedException(ie);
1365	<	}
1777	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1778		}
1779
1780		void assertSerialEquals(Object x, Object y) {
#	Line 1381 | Line 1793 | public class JSR166TestCase extends Test
1793		oos.flush();
1794		oos.close();
1795		return bos.toByteArray();
1796	<	} catch (Throwable t) {
1797	<	threadUnexpectedException(t);
1796	>	} catch (Throwable fail) {
1797	>	threadUnexpectedException(fail);
1798		return new byte[0];
1799		}
1800		}
1801
1802	+	void assertImmutable(Object o) {
1803	+	if (o instanceof Collection) {
1804	+	assertThrows(
1805	+	UnsupportedOperationException.class,
1806	+	() -> ((Collection) o).add(null));
1807	+	}
1808	+	}
1809	+
1810		@SuppressWarnings("unchecked")
1811		<T> T serialClone(T o) {
1812	+	T clone = null;
1813		try {
1814		ObjectInputStream ois = new ObjectInputStream
1815		(new ByteArrayInputStream(serialBytes(o)));
1816	<	T clone = (T) ois.readObject();
1817	<	assertSame(o.getClass(), clone.getClass());
1818	<	return clone;
1819	<	} catch (Throwable t) {
1820	<	threadUnexpectedException(t);
1816	>	clone = (T) ois.readObject();
1817	>	} catch (Throwable fail) {
1818	>	threadUnexpectedException(fail);
1819	>	}
1820	>	if (o == clone) assertImmutable(o);
1821	>	else assertSame(o.getClass(), clone.getClass());
1822	>	return clone;
1823	>	}
1824	>
1825	>	/**
1826	>	* A version of serialClone that leaves error handling (for
1827	>	* e.g. NotSerializableException) up to the caller.
1828	>	*/
1829	>	@SuppressWarnings("unchecked")
1830	>	<T> T serialClonePossiblyFailing(T o)
1831	>	throws ReflectiveOperationException, java.io.IOException {
1832	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1833	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1834	>	oos.writeObject(o);
1835	>	oos.flush();
1836	>	oos.close();
1837	>	ObjectInputStream ois = new ObjectInputStream
1838	>	(new ByteArrayInputStream(bos.toByteArray()));
1839	>	T clone = (T) ois.readObject();
1840	>	if (o == clone) assertImmutable(o);
1841	>	else assertSame(o.getClass(), clone.getClass());
1842	>	return clone;
1843	>	}
1844	>
1845	>	/**
1846	>	* If o implements Cloneable and has a public clone method,
1847	>	* returns a clone of o, else null.
1848	>	*/
1849	>	@SuppressWarnings("unchecked")
1850	>	<T> T cloneableClone(T o) {
1851	>	if (!(o instanceof Cloneable)) return null;
1852	>	final T clone;
1853	>	try {
1854	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1855	>	} catch (NoSuchMethodException ok) {
1856		return null;
1857	+	} catch (ReflectiveOperationException unexpected) {
1858	+	throw new Error(unexpected);
1859		}
1860	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1861	+	assertSame(o.getClass(), clone.getClass());
1862	+	return clone;
1863		}
1864
1865		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1866	<	Runnable... throwingActions) {
1867	<	for (Runnable throwingAction : throwingActions) {
1866	>	Action... throwingActions) {
1867	>	for (Action throwingAction : throwingActions) {
1868		boolean threw = false;
1869		try { throwingAction.run(); }
1870		catch (Throwable t) {
1871		threw = true;
1872	<	if (!expectedExceptionClass.isInstance(t)) {
1873	<	AssertionFailedError afe =
1874	<	new AssertionFailedError
1875	<	("Expected " + expectedExceptionClass.getName() +
1876	<	", got " + t.getClass().getName());
1416	<	afe.initCause(t);
1417	<	threadUnexpectedException(afe);
1418	<	}
1872	>	if (!expectedExceptionClass.isInstance(t))
1873	>	throw new AssertionError(
1874	>	"Expected " + expectedExceptionClass.getName() +
1875	>	", got " + t.getClass().getName(),
1876	>	t);
1877		}
1878		if (!threw)
1879		shouldThrow(expectedExceptionClass.getName());
1880		}
1881		}
1882	+
1883	+	public void assertIteratorExhausted(Iterator<?> it) {
1884	+	try {
1885	+	it.next();
1886	+	shouldThrow();
1887	+	} catch (NoSuchElementException success) {}
1888	+	assertFalse(it.hasNext());
1889	+	}
1890	+
1891	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1892	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1893	+	}
1894	+
1895	+	public Runnable runnableThrowing(final RuntimeException ex) {
1896	+	return new Runnable() { public void run() { throw ex; }};
1897	+	}
1898	+
1899	+	/** A reusable thread pool to be shared by tests. */
1900	+	static final ExecutorService cachedThreadPool =
1901	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1902	+	1000L, MILLISECONDS,
1903	+	new SynchronousQueue<Runnable>());
1904	+
1905	+	static <T> void shuffle(T[] array) {
1906	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1907	+	}
1908	+
1909	+	/**
1910	+	* Returns the same String as would be returned by {@link
1911	+	* Object#toString}, whether or not the given object's class
1912	+	* overrides toString().
1913	+	*
1914	+	* @see System#identityHashCode
1915	+	*/
1916	+	static String identityString(Object x) {
1917	+	return x.getClass().getName()
1918	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1919	+	}
1920	+
1921	+	// --- Shared assertions for Executor tests ---
1922	+
1923	+	/**
1924	+	* Returns maximum number of tasks that can be submitted to given
1925	+	* pool (with bounded queue) before saturation (when submission
1926	+	* throws RejectedExecutionException).
1927	+	*/
1928	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1929	+	BlockingQueue<Runnable> q = pool.getQueue();
1930	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1931	+	}
1932	+
1933	+	@SuppressWarnings("FutureReturnValueIgnored")
1934	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1935	+	try {
1936	+	e.execute((Runnable) null);
1937	+	shouldThrow();
1938	+	} catch (NullPointerException success) {}
1939	+
1940	+	if (! (e instanceof ExecutorService)) return;
1941	+	ExecutorService es = (ExecutorService) e;
1942	+	try {
1943	+	es.submit((Runnable) null);
1944	+	shouldThrow();
1945	+	} catch (NullPointerException success) {}
1946	+	try {
1947	+	es.submit((Runnable) null, Boolean.TRUE);
1948	+	shouldThrow();
1949	+	} catch (NullPointerException success) {}
1950	+	try {
1951	+	es.submit((Callable) null);
1952	+	shouldThrow();
1953	+	} catch (NullPointerException success) {}
1954	+
1955	+	if (! (e instanceof ScheduledExecutorService)) return;
1956	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1957	+	try {
1958	+	ses.schedule((Runnable) null,
1959	+	randomTimeout(), randomTimeUnit());
1960	+	shouldThrow();
1961	+	} catch (NullPointerException success) {}
1962	+	try {
1963	+	ses.schedule((Callable) null,
1964	+	randomTimeout(), randomTimeUnit());
1965	+	shouldThrow();
1966	+	} catch (NullPointerException success) {}
1967	+	try {
1968	+	ses.scheduleAtFixedRate((Runnable) null,
1969	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1970	+	shouldThrow();
1971	+	} catch (NullPointerException success) {}
1972	+	try {
1973	+	ses.scheduleWithFixedDelay((Runnable) null,
1974	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1975	+	shouldThrow();
1976	+	} catch (NullPointerException success) {}
1977	+	}
1978	+
1979	+	void setRejectedExecutionHandler(
1980	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1981	+	p.setRejectedExecutionHandler(handler);
1982	+	assertSame(handler, p.getRejectedExecutionHandler());
1983	+	}
1984	+
1985	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1986	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1987	+	final long savedTaskCount = p.getTaskCount();
1988	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1989	+	final int savedQueueSize = p.getQueue().size();
1990	+	final boolean stock = (p.getClass().getClassLoader() == null);
1991	+
1992	+	Runnable r = () -> {};
1993	+	Callable<Boolean> c = () -> Boolean.TRUE;
1994	+
1995	+	class Recorder implements RejectedExecutionHandler {
1996	+	public volatile Runnable r = null;
1997	+	public volatile ThreadPoolExecutor p = null;
1998	+	public void reset() { r = null; p = null; }
1999	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2000	+	assertNull(this.r);
2001	+	assertNull(this.p);
2002	+	this.r = r;
2003	+	this.p = p;
2004	+	}
2005	+	}
2006	+
2007	+	// check custom handler is invoked exactly once per task
2008	+	Recorder recorder = new Recorder();
2009	+	setRejectedExecutionHandler(p, recorder);
2010	+	for (int i = 2; i--> 0; ) {
2011	+	recorder.reset();
2012	+	p.execute(r);
2013	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2014	+	assertSame(r, recorder.r);
2015	+	assertSame(p, recorder.p);
2016	+
2017	+	recorder.reset();
2018	+	assertFalse(p.submit(r).isDone());
2019	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2020	+	assertSame(p, recorder.p);
2021	+
2022	+	recorder.reset();
2023	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2024	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2025	+	assertSame(p, recorder.p);
2026	+
2027	+	recorder.reset();
2028	+	assertFalse(p.submit(c).isDone());
2029	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2030	+	assertSame(p, recorder.p);
2031	+
2032	+	if (p instanceof ScheduledExecutorService) {
2033	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2034	+	ScheduledFuture<?> future;
2035	+
2036	+	recorder.reset();
2037	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2038	+	assertFalse(future.isDone());
2039	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2040	+	assertSame(p, recorder.p);
2041	+
2042	+	recorder.reset();
2043	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2044	+	assertFalse(future.isDone());
2045	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2046	+	assertSame(p, recorder.p);
2047	+
2048	+	recorder.reset();
2049	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2050	+	assertFalse(future.isDone());
2051	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2052	+	assertSame(p, recorder.p);
2053	+
2054	+	recorder.reset();
2055	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2056	+	assertFalse(future.isDone());
2057	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2058	+	assertSame(p, recorder.p);
2059	+	}
2060	+	}
2061	+
2062	+	// Checking our custom handler above should be sufficient, but
2063	+	// we add some integration tests of standard handlers.
2064	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2065	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2066	+
2067	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2068	+	try {
2069	+	p.execute(setThread);
2070	+	shouldThrow();
2071	+	} catch (RejectedExecutionException success) {}
2072	+	assertNull(thread.get());
2073	+
2074	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2075	+	p.execute(setThread);
2076	+	assertNull(thread.get());
2077	+
2078	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2079	+	p.execute(setThread);
2080	+	if (p.isShutdown())
2081	+	assertNull(thread.get());
2082	+	else
2083	+	assertSame(Thread.currentThread(), thread.get());
2084	+
2085	+	setRejectedExecutionHandler(p, savedHandler);
2086	+
2087	+	// check that pool was not perturbed by handlers
2088	+	assertEquals(savedTaskCount, p.getTaskCount());
2089	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2090	+	assertEquals(savedQueueSize, p.getQueue().size());
2091	+	}
2092	+
2093	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2094	+	assertEquals(x, y);
2095	+	assertEquals(y, x);
2096	+	assertEquals(x.isEmpty(), y.isEmpty());
2097	+	assertEquals(x.size(), y.size());
2098	+	if (x instanceof List) {
2099	+	assertEquals(x.toString(), y.toString());
2100	+	}
2101	+	if (x instanceof List || x instanceof Set) {
2102	+	assertEquals(x.hashCode(), y.hashCode());
2103	+	}
2104	+	if (x instanceof List || x instanceof Deque) {
2105	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2106	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2107	+	y.toArray(new Object[0])));
2108	+	}
2109	+	}
2110	+
2111	+	/**
2112	+	* A weaker form of assertCollectionsEquals which does not insist
2113	+	* that the two collections satisfy Object#equals(Object), since
2114	+	* they may use identity semantics as Deques do.
2115	+	*/
2116	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2117	+	if (x instanceof List || x instanceof Set)
2118	+	assertCollectionsEquals(x, y);
2119	+	else {
2120	+	assertEquals(x.isEmpty(), y.isEmpty());
2121	+	assertEquals(x.size(), y.size());
2122	+	assertEquals(new HashSet(x), new HashSet(y));
2123	+	if (x instanceof Deque) {
2124	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2125	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2126	+	y.toArray(new Object[0])));
2127	+	}
2128	+	}
2129	+	}
2130		}

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