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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.107 by jsr166, Sun Apr 21 06:19:58 2013 UTC vs.
Revision 1.248 by jsr166, Sat Nov 24 21:14:51 2018 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
2	>	* Written by Doug Lea and Martin Buchholz with assistance from
3	>	* members of JCP JSR-166 Expert Group and released to the public
4	>	* domain, as explained at
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		* Other contributors include Andrew Wright, Jeffrey Hayes,
7		* Pat Fisher, Mike Judd.
8		*/
9
10	<	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;
103	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
104	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
105	<	import java.security.CodeSource;
106	<	import java.security.Permission;
107	<	import java.security.PermissionCollection;
108	<	import java.security.Permissions;
33	<	import java.security.Policy;
34	<	import java.security.ProtectionDomain;
35	<	import java.security.SecurityPermission;
103	>	import java.util.regex.Pattern;
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 44 | 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 66 | 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
87	<	* 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 115 | Line 195 | public class JSR166TestCase extends Test
195		Boolean.getBoolean("jsr166.expensiveTests");
196
197		/**
198	+	* If true, also run tests that are not part of the official tck
199	+	* because they test unspecified implementation details.
200	+	*/
201	+	protected static final boolean testImplementationDetails =
202	+	Boolean.getBoolean("jsr166.testImplementationDetails");
203	+
204	+	/**
205		* If true, report on stdout all "slow" tests, that is, ones that
206		* take more than profileThreshold milliseconds to execute.
207		*/
#	Line 134 | Line 221 | public class JSR166TestCase extends Test
221		private static final int runsPerTest =
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.
275	+	*/
276	+	private static final Pattern methodFilter = methodFilter();
277	+
278	+	private static Pattern methodFilter() {
279	+	String regex = System.getProperty("jsr166.methodFilter");
280	+	return (regex == null) ? null : Pattern.compile(regex);
281	+	}
282	+
283	+	// Instrumentation to debug very rare, but very annoying hung test runs.
284	+	static volatile TestCase currentTestCase;
285	+	// static volatile int currentRun = 0;
286	+	static {
287	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
288	+	// Avoid spurious reports with enormous runsPerTest.
289	+	// A single test case run should never take more than 1 second.
290	+	// But let's cap it at the high end too ...
291	+	final int timeoutMinutes =
292	+	Math.min(15, Math.max(runsPerTest / 60, 1));
293	+	for (TestCase lastTestCase = currentTestCase;;) {
294	+	try { MINUTES.sleep(timeoutMinutes); }
295	+	catch (InterruptedException unexpected) { break; }
296	+	if (lastTestCase == currentTestCase) {
297	+	System.err.printf(
298	+	"Looks like we're stuck running test: %s%n",
299	+	lastTestCase);
300	+	//                     System.err.printf(
301	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
302	+	//                         lastTestCase, currentRun, runsPerTest);
303	+	//                     System.err.println("availableProcessors=" +
304	+	//                         Runtime.getRuntime().availableProcessors());
305	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
306	+	dumpTestThreads();
307	+	// one stack dump is probably enough; more would be spam
308	+	break;
309	+	}
310	+	lastTestCase = currentTestCase;
311	+	}}};
312	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
313	+	thread.setDaemon(true);
314	+	thread.start();
315	+	}
316	+
317	+	//     public static String cpuModel() {
318	+	//         try {
319	+	//             java.util.regex.Matcher matcher
320	+	//               = Pattern.compile("model name\\s*: (.*)")
321	+	//                 .matcher(new String(
322	+	//                     java.nio.file.Files.readAllBytes(
323	+	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
324	+	//             matcher.find();
325	+	//             return matcher.group(1);
326	+	//         } catch (Exception ex) { return null; }
327	+	//     }
328	+
329	+	public void runBare() throws Throwable {
330	+	currentTestCase = this;
331	+	if (methodFilter == null
332	+	|| methodFilter.matcher(toString()).find())
333	+	super.runBare();
334	+	}
335	+
336		protected void runTest() throws Throwable {
337		for (int i = 0; i < runsPerTest; i++) {
338	+	// currentRun = i;
339		if (profileTests)
340		runTestProfiled();
341		else
#	Line 144 | Line 344 | public class JSR166TestCase extends Test
344		}
345
346		protected void runTestProfiled() throws Throwable {
347	<	long t0 = System.nanoTime();
348	<	try {
347	>	for (int i = 0; i < 2; i++) {
348	>	long startTime = System.nanoTime();
349		super.runTest();
350	<	} finally {
351	<	long elapsedMillis =
352	<	(System.nanoTime() - t0) / (1000L * 1000L);
353	<	if (elapsedMillis >= profileThreshold)
350	>	long elapsedMillis = millisElapsedSince(startTime);
351	>	if (elapsedMillis < profileThreshold)
352	>	break;
353	>	// Never report first run of any test; treat it as a
354	>	// warmup run, notably to trigger all needed classloading,
355	>	if (i > 0)
356		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
357		}
358		}
359
360		/**
361		* Runs all JSR166 unit tests using junit.textui.TestRunner.
160	–	* Optional command line arg provides the number of iterations to
161	–	* repeat running the tests.
362		*/
363		public static void main(String[] args) {
364	+	main(suite(), args);
365	+	}
366	+
367	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
368	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
369	+	long runTime;
370	+	public void startTest(Test test) {}
371	+	protected void printHeader(long runTime) {
372	+	this.runTime = runTime; // defer printing for later
373	+	}
374	+	protected void printFooter(TestResult result) {
375	+	if (result.wasSuccessful()) {
376	+	getWriter().println("OK (" + result.runCount() + " tests)"
377	+	+ "  Time: " + elapsedTimeAsString(runTime));
378	+	} else {
379	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
380	+	super.printFooter(result);
381	+	}
382	+	}
383	+	}
384	+
385	+	/**
386	+	* Returns a TestRunner that doesn't bother with unnecessary
387	+	* fluff, like printing a "." for each test case.
388	+	*/
389	+	static junit.textui.TestRunner newPithyTestRunner() {
390	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
391	+	runner.setPrinter(new PithyResultPrinter(System.out));
392	+	return runner;
393	+	}
394	+
395	+	/**
396	+	* Runs all unit tests in the given test suite.
397	+	* Actual behavior influenced by jsr166.* system properties.
398	+	*/
399	+	static void main(Test suite, String[] args) {
400		if (useSecurityManager) {
401		System.err.println("Setting a permissive security manager");
402		Policy.setPolicy(permissivePolicy());
403		System.setSecurityManager(new SecurityManager());
404		}
405	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
406	<
407	<	Test s = suite();
408	<	for (int i = 0; i < iters; ++i) {
173	<	junit.textui.TestRunner.run(s);
405	>	for (int i = 0; i < suiteRuns; i++) {
406	>	TestResult result = newPithyTestRunner().doRun(suite);
407	>	if (!result.wasSuccessful())
408	>	System.exit(1);
409		System.gc();
410		System.runFinalization();
411		}
177	–	System.exit(0);
412		}
413
414		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 195 | Line 429 | public class JSR166TestCase extends Test
429		for (String testClassName : testClassNames) {
430		try {
431		Class<?> testClass = Class.forName(testClassName);
432	<	Method m = testClass.getDeclaredMethod("suite",
199	<	new Class<?>[0]);
432	>	Method m = testClass.getDeclaredMethod("suite");
433		suite.addTest(newTestSuite((Test)m.invoke(null)));
434	<	} catch (Exception e) {
435	<	throw new Error("Missing test class", e);
434	>	} catch (ReflectiveOperationException e) {
435	>	throw new AssertionError("Missing test class", e);
436		}
437		}
438		}
439
440		public static final double JAVA_CLASS_VERSION;
441	+	public static final String JAVA_SPECIFICATION_VERSION;
442		static {
443		try {
444		JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
445		new java.security.PrivilegedAction<Double>() {
446		public Double run() {
447		return Double.valueOf(System.getProperty("java.class.version"));}});
448	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
449	+	new java.security.PrivilegedAction<String>() {
450	+	public String run() {
451	+	return System.getProperty("java.specification.version");}});
452		} catch (Throwable t) {
453		throw new Error(t);
454		}
455		}
456
457	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
458	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
459	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
457	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
458	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
459	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
460	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
461	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
462	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
463
464		/**
465		* Collects all JSR166 unit tests as one suite.
#	Line 239 | Line 480 | public class JSR166TestCase extends Test
480		AbstractQueuedLongSynchronizerTest.suite(),
481		ArrayBlockingQueueTest.suite(),
482		ArrayDequeTest.suite(),
483	+	ArrayListTest.suite(),
484		AtomicBooleanTest.suite(),
485		AtomicIntegerArrayTest.suite(),
486		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 261 | Line 503 | public class JSR166TestCase extends Test
503		CopyOnWriteArrayListTest.suite(),
504		CopyOnWriteArraySetTest.suite(),
505		CountDownLatchTest.suite(),
506	+	CountedCompleterTest.suite(),
507		CyclicBarrierTest.suite(),
508		DelayQueueTest.suite(),
509		EntryTest.suite(),
#	Line 289 | Line 532 | public class JSR166TestCase extends Test
532		TreeMapTest.suite(),
533		TreeSetTest.suite(),
534		TreeSubMapTest.suite(),
535	<	TreeSubSetTest.suite());
535	>	TreeSubSetTest.suite(),
536	>	VectorTest.suite());
537
538		// Java8+ test classes
539		if (atLeastJava8()) {
540		String[] java8TestClassNames = {
541	+	"ArrayDeque8Test",
542	+	"Atomic8Test",
543		"CompletableFutureTest",
544		"ConcurrentHashMap8Test",
545	<	"CountedCompleterTest",
545	>	"CountedCompleter8Test",
546		"DoubleAccumulatorTest",
547		"DoubleAdderTest",
548		"ForkJoinPool8Test",
549	+	"ForkJoinTask8Test",
550	+	"HashMapTest",
551	+	"LinkedBlockingDeque8Test",
552	+	"LinkedBlockingQueue8Test",
553		"LongAccumulatorTest",
554		"LongAdderTest",
555	+	"SplittableRandomTest",
556		"StampedLockTest",
557	+	"SubmissionPublisherTest",
558	+	"ThreadLocalRandom8Test",
559	+	"TimeUnit8Test",
560		};
561		addNamedTestClasses(suite, java8TestClassNames);
562		}
563
564	+	// Java9+ test classes
565	+	if (atLeastJava9()) {
566	+	String[] java9TestClassNames = {
567	+	"AtomicBoolean9Test",
568	+	"AtomicInteger9Test",
569	+	"AtomicIntegerArray9Test",
570	+	"AtomicLong9Test",
571	+	"AtomicLongArray9Test",
572	+	"AtomicReference9Test",
573	+	"AtomicReferenceArray9Test",
574	+	"ExecutorCompletionService9Test",
575	+	"ForkJoinPool9Test",
576	+	};
577	+	addNamedTestClasses(suite, java9TestClassNames);
578	+	}
579	+
580		return suite;
581		}
582
583	+	/** Returns list of junit-style test method names in given class. */
584	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
585	+	Method[] methods = testClass.getDeclaredMethods();
586	+	ArrayList<String> names = new ArrayList<>(methods.length);
587	+	for (Method method : methods) {
588	+	if (method.getName().startsWith("test")
589	+	&& Modifier.isPublic(method.getModifiers())
590	+	// method.getParameterCount() requires jdk8+
591	+	&& method.getParameterTypes().length == 0) {
592	+	names.add(method.getName());
593	+	}
594	+	}
595	+	return names;
596	+	}
597	+
598	+	/**
599	+	* Returns junit-style testSuite for the given test class, but
600	+	* parameterized by passing extra data to each test.
601	+	*/
602	+	public static <ExtraData> Test parameterizedTestSuite
603	+	(Class<? extends JSR166TestCase> testClass,
604	+	Class<ExtraData> dataClass,
605	+	ExtraData data) {
606	+	try {
607	+	TestSuite suite = new TestSuite();
608	+	Constructor c =
609	+	testClass.getDeclaredConstructor(dataClass, String.class);
610	+	for (String methodName : testMethodNames(testClass))
611	+	suite.addTest((Test) c.newInstance(data, methodName));
612	+	return suite;
613	+	} catch (ReflectiveOperationException e) {
614	+	throw new AssertionError(e);
615	+	}
616	+	}
617	+
618	+	/**
619	+	* Returns junit-style testSuite for the jdk8 extension of the
620	+	* given test class, but parameterized by passing extra data to
621	+	* each test.  Uses reflection to allow compilation in jdk7.
622	+	*/
623	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
624	+	(Class<? extends JSR166TestCase> testClass,
625	+	Class<ExtraData> dataClass,
626	+	ExtraData data) {
627	+	if (atLeastJava8()) {
628	+	String name = testClass.getName();
629	+	String name8 = name.replaceAll("Test$", "8Test");
630	+	if (name.equals(name8)) throw new AssertionError(name);
631	+	try {
632	+	return (Test)
633	+	Class.forName(name8)
634	+	.getMethod("testSuite", dataClass)
635	+	.invoke(null, data);
636	+	} catch (ReflectiveOperationException e) {
637	+	throw new AssertionError(e);
638	+	}
639	+	} else {
640	+	return new TestSuite();
641	+	}
642	+	}
643	+
644	+	// Delays for timing-dependent tests, in milliseconds.
645
646		public static long SHORT_DELAY_MS;
647		public static long SMALL_DELAY_MS;
648		public static long MEDIUM_DELAY_MS;
649		public static long LONG_DELAY_MS;
650
651	+	private static final long RANDOM_TIMEOUT;
652	+	private static final long RANDOM_EXPIRED_TIMEOUT;
653	+	private static final TimeUnit RANDOM_TIMEUNIT;
654	+	static {
655	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
656	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
657	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
658	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
659	+	TimeUnit[] timeUnits = TimeUnit.values();
660	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
661	+	}
662	+
663	+	/**
664	+	* Returns a timeout for use when any value at all will do.
665	+	*/
666	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
667
668		/**
669	<	* Returns the shortest timed delay. This could
670	<	* be reimplemented to use for example a Property.
669	>	* Returns a timeout that means "no waiting", i.e. not positive.
670	>	*/
671	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
672	>
673	>	/**
674	>	* Returns a random non-null TimeUnit.
675	>	*/
676	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
677	>
678	>	/**
679	>	* Returns the shortest timed delay. This can be scaled up for
680	>	* slow machines using the jsr166.delay.factor system property,
681	>	* or via jtreg's -timeoutFactor: flag.
682	>	* http://openjdk.java.net/jtreg/command-help.html
683		*/
684		protected long getShortDelay() {
685	<	return 50;
685	>	return (long) (50 * delayFactor);
686		}
687
688		/**
#	Line 335 | Line 695 | public class JSR166TestCase extends Test
695		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
696		}
697
698	+	private static final long TIMEOUT_DELAY_MS
699	+	= (long) (12.0 * Math.cbrt(delayFactor));
700	+
701		/**
702	<	* Returns a timeout in milliseconds to be used in tests that
703	<	* verify that operations block or time out.
702	>	* Returns a timeout in milliseconds to be used in tests that verify
703	>	* that operations block or time out.  We want this to be longer
704	>	* than the OS scheduling quantum, but not too long, so don't scale
705	>	* linearly with delayFactor; we use "crazy" cube root instead.
706		*/
707	<	long timeoutMillis() {
708	<	return SHORT_DELAY_MS / 4;
707	>	static long timeoutMillis() {
708	>	return TIMEOUT_DELAY_MS;
709		}
710
711		/**
712	<	* Returns a new Date instance representing a time delayMillis
713	<	* milliseconds in the future.
712	>	* Returns a new Date instance representing a time at least
713	>	* delayMillis milliseconds in the future.
714		*/
715		Date delayedDate(long delayMillis) {
716	<	return new Date(System.currentTimeMillis() + delayMillis);
716	>	// Add 1 because currentTimeMillis is known to round into the past.
717	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
718		}
719
720		/**
721		* The first exception encountered if any threadAssertXXX method fails.
722		*/
723		private final AtomicReference<Throwable> threadFailure
724	<	= new AtomicReference<Throwable>(null);
724	>	= new AtomicReference<>(null);
725
726		/**
727		* Records an exception so that it can be rethrown later in the test
#	Line 364 | Line 730 | public class JSR166TestCase extends Test
730		* the same test have no effect.
731		*/
732		public void threadRecordFailure(Throwable t) {
733	+	System.err.println(t);
734	+	dumpTestThreads();
735		threadFailure.compareAndSet(null, t);
736		}
737
#	Line 371 | Line 739 | public class JSR166TestCase extends Test
739		setDelays();
740		}
741
742	+	void tearDownFail(String format, Object... args) {
743	+	String msg = toString() + ": " + String.format(format, args);
744	+	System.err.println(msg);
745	+	dumpTestThreads();
746	+	throw new AssertionError(msg);
747	+	}
748	+
749		/**
750		* Extra checks that get done for all test cases.
751		*
#	Line 389 | Line 764 | public class JSR166TestCase extends Test
764		throw (RuntimeException) t;
765		else if (t instanceof Exception)
766		throw (Exception) t;
767	<	else {
768	<	AssertionFailedError afe =
394	<	new AssertionFailedError(t.toString());
395	<	afe.initCause(t);
396	<	throw afe;
397	<	}
767	>	else
768	>	throw new AssertionError(t.toString(), t);
769		}
770
771		if (Thread.interrupted())
772	<	throw new AssertionFailedError("interrupt status set in main thread");
772	>	tearDownFail("interrupt status set in main thread");
773
774		checkForkJoinPoolThreadLeaks();
775		}
776
777		/**
778	<	* Find missing try { ... } finally { joinPool(e); }
778	>	* Finds missing PoolCleaners
779		*/
780		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
781	<	Thread[] survivors = new Thread[5];
781	>	Thread[] survivors = new Thread[7];
782		int count = Thread.enumerate(survivors);
783		for (int i = 0; i < count; i++) {
784		Thread thread = survivors[i];
#	Line 415 | Line 786 | public class JSR166TestCase extends Test
786		if (name.startsWith("ForkJoinPool-")) {
787		// give thread some time to terminate
788		thread.join(LONG_DELAY_MS);
789	<	if (!thread.isAlive()) continue;
790	<	thread.stop();
791	<	throw new AssertionFailedError
421	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
422	<	toString(), name));
789	>	if (thread.isAlive())
790	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
791	>	thread);
792		}
793		}
794	+
795	+	if (!ForkJoinPool.commonPool()
796	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
797	+	tearDownFail("ForkJoin common pool thread stuck");
798		}
799
800		/**
801		* Just like fail(reason), but additionally recording (using
802	<	* threadRecordFailure) any AssertionFailedError thrown, so that
803	<	* the current testcase will fail.
802	>	* threadRecordFailure) any AssertionError thrown, so that the
803	>	* current testcase will fail.
804		*/
805		public void threadFail(String reason) {
806		try {
807		fail(reason);
808	<	} catch (AssertionFailedError t) {
809	<	threadRecordFailure(t);
810	<	fail(reason);
808	>	} catch (AssertionError fail) {
809	>	threadRecordFailure(fail);
810	>	throw fail;
811		}
812		}
813
814		/**
815		* Just like assertTrue(b), but additionally recording (using
816	<	* threadRecordFailure) any AssertionFailedError thrown, so that
817	<	* the current testcase will fail.
816	>	* threadRecordFailure) any AssertionError thrown, so that the
817	>	* current testcase will fail.
818		*/
819		public void threadAssertTrue(boolean b) {
820		try {
821		assertTrue(b);
822	<	} catch (AssertionFailedError t) {
823	<	threadRecordFailure(t);
824	<	throw t;
822	>	} catch (AssertionError fail) {
823	>	threadRecordFailure(fail);
824	>	throw fail;
825		}
826		}
827
828		/**
829		* Just like assertFalse(b), but additionally recording (using
830	<	* threadRecordFailure) any AssertionFailedError thrown, so that
831	<	* the current testcase will fail.
830	>	* threadRecordFailure) any AssertionError thrown, so that the
831	>	* current testcase will fail.
832		*/
833		public void threadAssertFalse(boolean b) {
834		try {
835		assertFalse(b);
836	<	} catch (AssertionFailedError t) {
837	<	threadRecordFailure(t);
838	<	throw t;
836	>	} catch (AssertionError fail) {
837	>	threadRecordFailure(fail);
838	>	throw fail;
839		}
840		}
841
842		/**
843		* Just like assertNull(x), but additionally recording (using
844	<	* threadRecordFailure) any AssertionFailedError thrown, so that
845	<	* the current testcase will fail.
844	>	* threadRecordFailure) any AssertionError thrown, so that the
845	>	* current testcase will fail.
846		*/
847		public void threadAssertNull(Object x) {
848		try {
849		assertNull(x);
850	<	} catch (AssertionFailedError t) {
851	<	threadRecordFailure(t);
852	<	throw t;
850	>	} catch (AssertionError fail) {
851	>	threadRecordFailure(fail);
852	>	throw fail;
853		}
854		}
855
856		/**
857		* Just like assertEquals(x, y), but additionally recording (using
858	<	* threadRecordFailure) any AssertionFailedError thrown, so that
859	<	* the current testcase will fail.
858	>	* threadRecordFailure) any AssertionError thrown, so that the
859	>	* current testcase will fail.
860		*/
861		public void threadAssertEquals(long x, long y) {
862		try {
863		assertEquals(x, y);
864	<	} catch (AssertionFailedError t) {
865	<	threadRecordFailure(t);
866	<	throw t;
864	>	} catch (AssertionError fail) {
865	>	threadRecordFailure(fail);
866	>	throw fail;
867		}
868		}
869
870		/**
871		* Just like assertEquals(x, y), but additionally recording (using
872	<	* threadRecordFailure) any AssertionFailedError thrown, so that
873	<	* the current testcase will fail.
872	>	* threadRecordFailure) any AssertionError thrown, so that the
873	>	* current testcase will fail.
874		*/
875		public void threadAssertEquals(Object x, Object y) {
876		try {
877		assertEquals(x, y);
878	<	} catch (AssertionFailedError t) {
879	<	threadRecordFailure(t);
880	<	throw t;
881	<	} catch (Throwable t) {
882	<	threadUnexpectedException(t);
878	>	} catch (AssertionError fail) {
879	>	threadRecordFailure(fail);
880	>	throw fail;
881	>	} catch (Throwable fail) {
882	>	threadUnexpectedException(fail);
883		}
884		}
885
886		/**
887		* Just like assertSame(x, y), but additionally recording (using
888	<	* threadRecordFailure) any AssertionFailedError thrown, so that
889	<	* the current testcase will fail.
888	>	* threadRecordFailure) any AssertionError thrown, so that the
889	>	* current testcase will fail.
890		*/
891		public void threadAssertSame(Object x, Object y) {
892		try {
893		assertSame(x, y);
894	<	} catch (AssertionFailedError t) {
895	<	threadRecordFailure(t);
896	<	throw t;
894	>	} catch (AssertionError fail) {
895	>	threadRecordFailure(fail);
896	>	throw fail;
897		}
898		}
899
#	Line 540 | Line 913 | public class JSR166TestCase extends Test
913
914		/**
915		* Records the given exception using {@link #threadRecordFailure},
916	<	* then rethrows the exception, wrapping it in an
917	<	* AssertionFailedError if necessary.
916	>	* then rethrows the exception, wrapping it in an AssertionError
917	>	* if necessary.
918		*/
919		public void threadUnexpectedException(Throwable t) {
920		threadRecordFailure(t);
#	Line 550 | Line 923 | public class JSR166TestCase extends Test
923		throw (RuntimeException) t;
924		else if (t instanceof Error)
925		throw (Error) t;
926	<	else {
927	<	AssertionFailedError afe =
555	<	new AssertionFailedError("unexpected exception: " + t);
556	<	afe.initCause(t);
557	<	throw afe;
558	<	}
926	>	else
927	>	throw new AssertionError("unexpected exception: " + t, t);
928		}
929
930		/**
931		* Delays, via Thread.sleep, for the given millisecond delay, but
932		* if the sleep is shorter than specified, may re-sleep or yield
933	<	* until time elapses.
933	>	* until time elapses.  Ensures that the given time, as measured
934	>	* by System.nanoTime(), has elapsed.
935		*/
936		static void delay(long millis) throws InterruptedException {
937	<	long startTime = System.nanoTime();
938	<	long ns = millis * 1000 * 1000;
939	<	for (;;) {
937	>	long nanos = millis * (1000 * 1000);
938	>	final long wakeupTime = System.nanoTime() + nanos;
939	>	do {
940		if (millis > 0L)
941		Thread.sleep(millis);
942		else // too short to sleep
943		Thread.yield();
944	<	long d = ns - (System.nanoTime() - startTime);
945	<	if (d > 0L)
946	<	millis = d / (1000 * 1000);
947	<	else
948	<	break;
944	>	nanos = wakeupTime - System.nanoTime();
945	>	millis = nanos / (1000 * 1000);
946	>	} while (nanos >= 0L);
947	>	}
948	>
949	>	/**
950	>	* Allows use of try-with-resources with per-test thread pools.
951	>	*/
952	>	class PoolCleaner implements AutoCloseable {
953	>	private final ExecutorService pool;
954	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
955	>	public void close() { joinPool(pool); }
956	>	}
957	>
958	>	/**
959	>	* An extension of PoolCleaner that has an action to release the pool.
960	>	*/
961	>	class PoolCleanerWithReleaser extends PoolCleaner {
962	>	private final Runnable releaser;
963	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
964	>	super(pool);
965	>	this.releaser = releaser;
966	>	}
967	>	public void close() {
968	>	try {
969	>	releaser.run();
970	>	} finally {
971	>	super.close();
972	>	}
973		}
974		}
975
976	+	PoolCleaner cleaner(ExecutorService pool) {
977	+	return new PoolCleaner(pool);
978	+	}
979	+
980	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
981	+	return new PoolCleanerWithReleaser(pool, releaser);
982	+	}
983	+
984	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
985	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
986	+	}
987	+
988	+	Runnable releaser(final CountDownLatch latch) {
989	+	return new Runnable() { public void run() {
990	+	do { latch.countDown(); }
991	+	while (latch.getCount() > 0);
992	+	}};
993	+	}
994	+
995	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
996	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
997	+	}
998	+
999	+	Runnable releaser(final AtomicBoolean flag) {
1000	+	return new Runnable() { public void run() { flag.set(true); }};
1001	+	}
1002	+
1003		/**
1004		* Waits out termination of a thread pool or fails doing so.
1005		*/
1006	<	void joinPool(ExecutorService exec) {
1006	>	void joinPool(ExecutorService pool) {
1007		try {
1008	<	exec.shutdown();
1009	<	assertTrue("ExecutorService did not terminate in a timely manner",
1010	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
1008	>	pool.shutdown();
1009	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1010	>	try {
1011	>	threadFail("ExecutorService " + pool +
1012	>	" did not terminate in a timely manner");
1013	>	} finally {
1014	>	// last resort, for the benefit of subsequent tests
1015	>	pool.shutdownNow();
1016	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1017	>	}
1018	>	}
1019		} catch (SecurityException ok) {
1020		// Allowed in case test doesn't have privs
1021	<	} catch (InterruptedException ie) {
1022	<	fail("Unexpected InterruptedException");
1021	>	} catch (InterruptedException fail) {
1022	>	threadFail("Unexpected InterruptedException");
1023		}
1024		}
1025
1026		/**
1027	<	* A debugging tool to print all stack traces, as jstack does.
1027	>	* Like Runnable, but with the freedom to throw anything.
1028	>	* junit folks had the same idea:
1029	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1030		*/
1031	<	static void printAllStackTraces() {
601	<	for (ThreadInfo info :
602	<	ManagementFactory.getThreadMXBean()
603	<	.dumpAllThreads(true, true))
604	<	System.err.print(info);
605	<	}
1031	>	interface Action { public void run() throws Throwable; }
1032
1033		/**
1034	<	* Checks that thread does not terminate within the default
1035	<	* millisecond delay of {@code timeoutMillis()}.
1034	>	* Runs all the given actions in parallel, failing if any fail.
1035	>	* Useful for running multiple variants of tests that are
1036	>	* necessarily individually slow because they must block.
1037		*/
1038	<	void assertThreadStaysAlive(Thread thread) {
1039	<	assertThreadStaysAlive(thread, timeoutMillis());
1038	>	void testInParallel(Action ... actions) {
1039	>	ExecutorService pool = Executors.newCachedThreadPool();
1040	>	try (PoolCleaner cleaner = cleaner(pool)) {
1041	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1042	>	for (final Action action : actions)
1043	>	futures.add(pool.submit(new CheckedRunnable() {
1044	>	public void realRun() throws Throwable { action.run();}}));
1045	>	for (Future<?> future : futures)
1046	>	try {
1047	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1048	>	} catch (ExecutionException ex) {
1049	>	threadUnexpectedException(ex.getCause());
1050	>	} catch (Exception ex) {
1051	>	threadUnexpectedException(ex);
1052	>	}
1053	>	}
1054		}
1055
1056		/**
1057	<	* Checks that thread does not terminate within the given millisecond delay.
1057	>	* A debugging tool to print stack traces of most threads, as jstack does.
1058	>	* Uninteresting threads are filtered out.
1059		*/
1060	<	void assertThreadStaysAlive(Thread thread, long millis) {
1061	<	try {
1062	<	// No need to optimize the failing case via Thread.join.
1063	<	delay(millis);
1064	<	assertTrue(thread.isAlive());
1065	<	} catch (InterruptedException ie) {
1066	<	fail("Unexpected InterruptedException");
1060	>	static void dumpTestThreads() {
1061	>	SecurityManager sm = System.getSecurityManager();
1062	>	if (sm != null) {
1063	>	try {
1064	>	System.setSecurityManager(null);
1065	>	} catch (SecurityException giveUp) {
1066	>	return;
1067	>	}
1068		}
626	–	}
1069
1070	<	/**
1071	<	* Checks that the threads do not terminate within the default
1072	<	* millisecond delay of {@code timeoutMillis()}.
1073	<	*/
1074	<	void assertThreadsStayAlive(Thread... threads) {
1075	<	assertThreadsStayAlive(timeoutMillis(), threads);
1070	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1071	>	System.err.println("------ stacktrace dump start ------");
1072	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1073	>	final String name = info.getThreadName();
1074	>	String lockName;
1075	>	if ("Signal Dispatcher".equals(name))
1076	>	continue;
1077	>	if ("Reference Handler".equals(name)
1078	>	&& (lockName = info.getLockName()) != null
1079	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1080	>	continue;
1081	>	if ("Finalizer".equals(name)
1082	>	&& (lockName = info.getLockName()) != null
1083	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1084	>	continue;
1085	>	if ("checkForWedgedTest".equals(name))
1086	>	continue;
1087	>	System.err.print(info);
1088	>	}
1089	>	System.err.println("------ stacktrace dump end ------");
1090	>
1091	>	if (sm != null) System.setSecurityManager(sm);
1092		}
1093
1094		/**
1095	<	* Checks that the threads do not terminate within the given millisecond delay.
1095	>	* Checks that thread eventually enters the expected blocked thread state.
1096		*/
1097	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1098	<	try {
1099	<	// No need to optimize the failing case via Thread.join.
1100	<	delay(millis);
1101	<	for (Thread thread : threads)
1102	<	assertTrue(thread.isAlive());
1103	<	} catch (InterruptedException ie) {
1104	<	fail("Unexpected InterruptedException");
1097	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1098	>	// always sleep at least 1 ms, with high probability avoiding
1099	>	// transitory states
1100	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1101	>	try { delay(1); }
1102	>	catch (InterruptedException fail) {
1103	>	throw new AssertionError("Unexpected InterruptedException", fail);
1104	>	}
1105	>	Thread.State s = thread.getState();
1106	>	if (s == expected)
1107	>	return;
1108	>	else if (s == Thread.State.TERMINATED)
1109	>	fail("Unexpected thread termination");
1110		}
1111	+	fail("timed out waiting for thread to enter thread state " + expected);
1112		}
1113
1114		/**
#	Line 664 | Line 1128 | public class JSR166TestCase extends Test
1128		future.get(timeoutMillis, MILLISECONDS);
1129		shouldThrow();
1130		} catch (TimeoutException success) {
1131	<	} catch (Exception e) {
1132	<	threadUnexpectedException(e);
1131	>	} catch (Exception fail) {
1132	>	threadUnexpectedException(fail);
1133		} finally { future.cancel(true); }
1134		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1135		}
#	Line 685 | Line 1149 | public class JSR166TestCase extends Test
1149		}
1150
1151		/**
1152	+	* The maximum number of consecutive spurious wakeups we should
1153	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1154	+	*/
1155	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1156	+
1157	+	/**
1158		* The number of elements to place in collections, arrays, etc.
1159		*/
1160		public static final int SIZE = 20;
#	Line 709 | Line 1179 | public class JSR166TestCase extends Test
1179		public static final Integer m6  = new Integer(-6);
1180		public static final Integer m10 = new Integer(-10);
1181
712	–
1182		/**
1183		* Runs Runnable r with a security policy that permits precisely
1184		* the specified permissions.  If there is no current security
#	Line 789 | Line 1258 | public class JSR166TestCase extends Test
1258		}
1259		public void refresh() {}
1260		public String toString() {
1261	<	List<Permission> ps = new ArrayList<Permission>();
1261	>	List<Permission> ps = new ArrayList<>();
1262		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1263		ps.add(e.nextElement());
1264		return "AdjustablePolicy with permissions " + ps;
#	Line 817 | Line 1286 | public class JSR166TestCase extends Test
1286
1287		/**
1288		* Sleeps until the given time has elapsed.
1289	<	* Throws AssertionFailedError if interrupted.
1289	>	* Throws AssertionError if interrupted.
1290		*/
1291	<	void sleep(long millis) {
1291	>	static void sleep(long millis) {
1292		try {
1293		delay(millis);
1294	<	} catch (InterruptedException ie) {
1295	<	AssertionFailedError afe =
827	<	new AssertionFailedError("Unexpected InterruptedException");
828	<	afe.initCause(ie);
829	<	throw afe;
1294	>	} catch (InterruptedException fail) {
1295	>	throw new AssertionError("Unexpected InterruptedException", fail);
1296		}
1297		}
1298
1299		/**
1300		* Spin-waits up to the specified number of milliseconds for the given
1301		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1302	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1303		*/
1304	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1305	<	long startTime = System.nanoTime();
1306	<	for (;;) {
1307	<	Thread.State s = thread.getState();
1308	<	if (s == Thread.State.BLOCKED ||
1309	<	s == Thread.State.WAITING ||
1310	<	s == Thread.State.TIMED_WAITING)
1311	<	return;
1312	<	else if (s == Thread.State.TERMINATED)
1304	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1305	>	Callable<Boolean> waitingForGodot) {
1306	>	for (long startTime = 0L;;) {
1307	>	switch (thread.getState()) {
1308	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1309	>	try {
1310	>	if (waitingForGodot == null || waitingForGodot.call())
1311	>	return;
1312	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1313	>	break;
1314	>	case TERMINATED:
1315		fail("Unexpected thread termination");
1316	+	}
1317	+
1318	+	if (startTime == 0L)
1319	+	startTime = System.nanoTime();
1320		else if (millisElapsedSince(startTime) > timeoutMillis) {
1321	<	threadAssertTrue(thread.isAlive());
1322	<	return;
1321	>	assertTrue(thread.isAlive());
1322	>	if (waitingForGodot == null
1323	>	|| thread.getState() == Thread.State.RUNNABLE)
1324	>	fail("timed out waiting for thread to enter wait state");
1325	>	else
1326	>	fail("timed out waiting for condition, thread state="
1327	>	+ thread.getState());
1328		}
1329		Thread.yield();
1330		}
1331		}
1332
1333		/**
1334	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1335	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1334	>	* Spin-waits up to the specified number of milliseconds for the given
1335	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1336	>	*/
1337	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1338	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1339	>	}
1340	>
1341	>	/**
1342	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1343	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1344		*/
1345		void waitForThreadToEnterWaitState(Thread thread) {
1346	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1346	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1347	>	}
1348	>
1349	>	/**
1350	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1351	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1352	>	* and additionally satisfy the given condition.
1353	>	*/
1354	>	void waitForThreadToEnterWaitState(Thread thread,
1355	>	Callable<Boolean> waitingForGodot) {
1356	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1357		}
1358
1359		/**
1360		* Returns the number of milliseconds since time given by
1361		* startNanoTime, which must have been previously returned from a
1362	<	* call to {@link System.nanoTime()}.
1362	>	* call to {@link System#nanoTime()}.
1363		*/
1364	<	long millisElapsedSince(long startNanoTime) {
1364	>	static long millisElapsedSince(long startNanoTime) {
1365		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1366		}
1367
1368	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1369	+	//         long startTime = System.nanoTime();
1370	+	//         try {
1371	+	//             r.run();
1372	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1373	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1374	+	//             throw new AssertionError("did not return promptly");
1375	+	//     }
1376	+
1377	+	//     void assertTerminatesPromptly(Runnable r) {
1378	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1379	+	//     }
1380	+
1381	+	/**
1382	+	* Checks that timed f.get() returns the expected value, and does not
1383	+	* wait for the timeout to elapse before returning.
1384	+	*/
1385	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1386	+	long startTime = System.nanoTime();
1387	+	T actual = null;
1388	+	try {
1389	+	actual = f.get(timeoutMillis, MILLISECONDS);
1390	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1391	+	assertEquals(expectedValue, actual);
1392	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1393	+	throw new AssertionError("timed get did not return promptly");
1394	+	}
1395	+
1396	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1397	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1398	+	}
1399	+
1400		/**
1401		* Returns a new started daemon Thread running the given runnable.
1402		*/
#	Line 887 | Line 1415 | public class JSR166TestCase extends Test
1415		void awaitTermination(Thread t, long timeoutMillis) {
1416		try {
1417		t.join(timeoutMillis);
1418	<	} catch (InterruptedException ie) {
1419	<	threadUnexpectedException(ie);
1418	>	} catch (InterruptedException fail) {
1419	>	threadUnexpectedException(fail);
1420		} finally {
1421		if (t.getState() != Thread.State.TERMINATED) {
1422		t.interrupt();
1423	<	fail("Test timed out");
1423	>	threadFail("timed out waiting for thread to terminate");
1424		}
1425		}
1426		}
#	Line 914 | Line 1442 | public class JSR166TestCase extends Test
1442		public final void run() {
1443		try {
1444		realRun();
1445	<	} catch (Throwable t) {
1446	<	threadUnexpectedException(t);
919	<	}
920	<	}
921	<	}
922	<
923	<	public abstract class RunnableShouldThrow implements Runnable {
924	<	protected abstract void realRun() throws Throwable;
925	<
926	<	final Class<?> exceptionClass;
927	<
928	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
929	<	this.exceptionClass = exceptionClass;
930	<	}
931	<
932	<	public final void run() {
933	<	try {
934	<	realRun();
935	<	threadShouldThrow(exceptionClass.getSimpleName());
936	<	} catch (Throwable t) {
937	<	if (! exceptionClass.isInstance(t))
938	<	threadUnexpectedException(t);
1445	>	} catch (Throwable fail) {
1446	>	threadUnexpectedException(fail);
1447		}
1448		}
1449		}
#	Line 952 | Line 1460 | public class JSR166TestCase extends Test
1460		public final void run() {
1461		try {
1462		realRun();
955	–	threadShouldThrow(exceptionClass.getSimpleName());
1463		} catch (Throwable t) {
1464		if (! exceptionClass.isInstance(t))
1465		threadUnexpectedException(t);
1466	+	return;
1467		}
1468	+	threadShouldThrow(exceptionClass.getSimpleName());
1469		}
1470		}
1471
#	Line 966 | Line 1475 | public class JSR166TestCase extends Test
1475		public final void run() {
1476		try {
1477		realRun();
969	–	threadShouldThrow("InterruptedException");
1478		} catch (InterruptedException success) {
1479		threadAssertFalse(Thread.interrupted());
1480	<	} catch (Throwable t) {
1481	<	threadUnexpectedException(t);
1480	>	return;
1481	>	} catch (Throwable fail) {
1482	>	threadUnexpectedException(fail);
1483		}
1484	+	threadShouldThrow("InterruptedException");
1485		}
1486		}
1487
#	Line 981 | Line 1491 | public class JSR166TestCase extends Test
1491		public final T call() {
1492		try {
1493		return realCall();
1494	<	} catch (Throwable t) {
1495	<	threadUnexpectedException(t);
986	<	return null;
987	<	}
988	<	}
989	<	}
990	<
991	<	public abstract class CheckedInterruptedCallable<T>
992	<	implements Callable<T> {
993	<	protected abstract T realCall() throws Throwable;
994	<
995	<	public final T call() {
996	<	try {
997	<	T result = realCall();
998	<	threadShouldThrow("InterruptedException");
999	<	return result;
1000	<	} catch (InterruptedException success) {
1001	<	threadAssertFalse(Thread.interrupted());
1002	<	} catch (Throwable t) {
1003	<	threadUnexpectedException(t);
1494	>	} catch (Throwable fail) {
1495	>	threadUnexpectedException(fail);
1496		}
1497	<	return null;
1497	>	throw new AssertionError("unreached");
1498		}
1499		}
1500
#	Line 1017 | Line 1509 | public class JSR166TestCase extends Test
1509		public static final String TEST_STRING = "a test string";
1510
1511		public static class StringTask implements Callable<String> {
1512	<	public String call() { return TEST_STRING; }
1512	>	final String value;
1513	>	public StringTask() { this(TEST_STRING); }
1514	>	public StringTask(String value) { this.value = value; }
1515	>	public String call() { return value; }
1516		}
1517
1518		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 1030 | Line 1525 | public class JSR166TestCase extends Test
1525		}};
1526		}
1527
1528	<	public Runnable awaiter(final CountDownLatch latch) {
1528	>	public Runnable countDowner(final CountDownLatch latch) {
1529		return new CheckedRunnable() {
1530		public void realRun() throws InterruptedException {
1531	<	await(latch);
1531	>	latch.countDown();
1532		}};
1533		}
1534
1535	+	class LatchAwaiter extends CheckedRunnable {
1536	+	static final int NEW = 0;
1537	+	static final int RUNNING = 1;
1538	+	static final int DONE = 2;
1539	+	final CountDownLatch latch;
1540	+	int state = NEW;
1541	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1542	+	public void realRun() throws InterruptedException {
1543	+	state = 1;
1544	+	await(latch);
1545	+	state = 2;
1546	+	}
1547	+	}
1548	+
1549	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1550	+	return new LatchAwaiter(latch);
1551	+	}
1552	+
1553	+	public void await(CountDownLatch latch, long timeoutMillis) {
1554	+	boolean timedOut = false;
1555	+	try {
1556	+	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1557	+	} catch (Throwable fail) {
1558	+	threadUnexpectedException(fail);
1559	+	}
1560	+	if (timedOut)
1561	+	fail("timed out waiting for CountDownLatch for "
1562	+	+ (timeoutMillis/1000) + " sec");
1563	+	}
1564	+
1565		public void await(CountDownLatch latch) {
1566	+	await(latch, LONG_DELAY_MS);
1567	+	}
1568	+
1569	+	public void await(Semaphore semaphore) {
1570	+	boolean timedOut = false;
1571		try {
1572	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1573	<	} catch (Throwable t) {
1574	<	threadUnexpectedException(t);
1572	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1573	>	} catch (Throwable fail) {
1574	>	threadUnexpectedException(fail);
1575		}
1576	+	if (timedOut)
1577	+	fail("timed out waiting for Semaphore for "
1578	+	+ (LONG_DELAY_MS/1000) + " sec");
1579		}
1580
1581	<	public void await(Semaphore semaphore) {
1581	>	public void await(CyclicBarrier barrier) {
1582		try {
1583	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1584	<	} catch (Throwable t) {
1585	<	threadUnexpectedException(t);
1583	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1584	>	} catch (Throwable fail) {
1585	>	threadUnexpectedException(fail);
1586		}
1587		}
1588
#	Line 1067 | Line 1600 | public class JSR166TestCase extends Test
1600		//         long startTime = System.nanoTime();
1601		//         while (!flag.get()) {
1602		//             if (millisElapsedSince(startTime) > timeoutMillis)
1603	<	//                 throw new AssertionFailedError("timed out");
1603	>	//                 throw new AssertionError("timed out");
1604		//             Thread.yield();
1605		//         }
1606		//     }
#	Line 1076 | Line 1609 | public class JSR166TestCase extends Test
1609		public String call() { throw new NullPointerException(); }
1610		}
1611
1079	–	public static class CallableOne implements Callable<Integer> {
1080	–	public Integer call() { return one; }
1081	–	}
1082	–
1083	–	public class ShortRunnable extends CheckedRunnable {
1084	–	protected void realRun() throws Throwable {
1085	–	delay(SHORT_DELAY_MS);
1086	–	}
1087	–	}
1088	–
1089	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1090	–	protected void realRun() throws InterruptedException {
1091	–	delay(SHORT_DELAY_MS);
1092	–	}
1093	–	}
1094	–
1095	–	public class SmallRunnable extends CheckedRunnable {
1096	–	protected void realRun() throws Throwable {
1097	–	delay(SMALL_DELAY_MS);
1098	–	}
1099	–	}
1100	–
1612		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1613		protected void realRun() {
1614		try {
#	Line 1106 | Line 1617 | public class JSR166TestCase extends Test
1617		}
1618		}
1619
1109	–	public class SmallCallable extends CheckedCallable {
1110	–	protected Object realCall() throws InterruptedException {
1111	–	delay(SMALL_DELAY_MS);
1112	–	return Boolean.TRUE;
1113	–	}
1114	–	}
1115	–
1116	–	public class MediumRunnable extends CheckedRunnable {
1117	–	protected void realRun() throws Throwable {
1118	–	delay(MEDIUM_DELAY_MS);
1119	–	}
1120	–	}
1121	–
1122	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1123	–	protected void realRun() throws InterruptedException {
1124	–	delay(MEDIUM_DELAY_MS);
1125	–	}
1126	–	}
1127	–
1620		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1621		return new CheckedRunnable() {
1622		protected void realRun() {
#	Line 1134 | Line 1626 | public class JSR166TestCase extends Test
1626		}};
1627		}
1628
1137	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1138	–	protected void realRun() {
1139	–	try {
1140	–	delay(MEDIUM_DELAY_MS);
1141	–	} catch (InterruptedException ok) {}
1142	–	}
1143	–	}
1144	–
1145	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1146	–	protected void realRun() {
1147	–	try {
1148	–	delay(LONG_DELAY_MS);
1149	–	} catch (InterruptedException ok) {}
1150	–	}
1151	–	}
1152	–
1629		/**
1630		* For use as ThreadFactory in constructors
1631		*/
#	Line 1163 | Line 1639 | public class JSR166TestCase extends Test
1639		boolean isDone();
1640		}
1641
1166	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1167	–	return new TrackedRunnable() {
1168	–	private volatile boolean done = false;
1169	–	public boolean isDone() { return done; }
1170	–	public void run() {
1171	–	try {
1172	–	delay(timeoutMillis);
1173	–	done = true;
1174	–	} catch (InterruptedException ok) {}
1175	–	}
1176	–	};
1177	–	}
1178	–
1179	–	public static class TrackedShortRunnable implements Runnable {
1180	–	public volatile boolean done = false;
1181	–	public void run() {
1182	–	try {
1183	–	delay(SHORT_DELAY_MS);
1184	–	done = true;
1185	–	} catch (InterruptedException ok) {}
1186	–	}
1187	–	}
1188	–
1189	–	public static class TrackedSmallRunnable implements Runnable {
1190	–	public volatile boolean done = false;
1191	–	public void run() {
1192	–	try {
1193	–	delay(SMALL_DELAY_MS);
1194	–	done = true;
1195	–	} catch (InterruptedException ok) {}
1196	–	}
1197	–	}
1198	–
1199	–	public static class TrackedMediumRunnable implements Runnable {
1200	–	public volatile boolean done = false;
1201	–	public void run() {
1202	–	try {
1203	–	delay(MEDIUM_DELAY_MS);
1204	–	done = true;
1205	–	} catch (InterruptedException ok) {}
1206	–	}
1207	–	}
1208	–
1209	–	public static class TrackedLongRunnable implements Runnable {
1210	–	public volatile boolean done = false;
1211	–	public void run() {
1212	–	try {
1213	–	delay(LONG_DELAY_MS);
1214	–	done = true;
1215	–	} catch (InterruptedException ok) {}
1216	–	}
1217	–	}
1218	–
1642		public static class TrackedNoOpRunnable implements Runnable {
1643		public volatile boolean done = false;
1644		public void run() {
#	Line 1223 | Line 1646 | public class JSR166TestCase extends Test
1646		}
1647		}
1648
1226	–	public static class TrackedCallable implements Callable {
1227	–	public volatile boolean done = false;
1228	–	public Object call() {
1229	–	try {
1230	–	delay(SMALL_DELAY_MS);
1231	–	done = true;
1232	–	} catch (InterruptedException ok) {}
1233	–	return Boolean.TRUE;
1234	–	}
1235	–	}
1236	–
1649		/**
1650		* Analog of CheckedRunnable for RecursiveAction
1651		*/
1652		public abstract class CheckedRecursiveAction extends RecursiveAction {
1653		protected abstract void realCompute() throws Throwable;
1654
1655	<	public final void compute() {
1655	>	@Override protected final void compute() {
1656		try {
1657		realCompute();
1658	<	} catch (Throwable t) {
1659	<	threadUnexpectedException(t);
1658	>	} catch (Throwable fail) {
1659	>	threadUnexpectedException(fail);
1660		}
1661		}
1662		}
#	Line 1255 | Line 1667 | public class JSR166TestCase extends Test
1667		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1668		protected abstract T realCompute() throws Throwable;
1669
1670	<	public final T compute() {
1670	>	@Override protected final T compute() {
1671		try {
1672		return realCompute();
1673	<	} catch (Throwable t) {
1674	<	threadUnexpectedException(t);
1263	<	return null;
1673	>	} catch (Throwable fail) {
1674	>	threadUnexpectedException(fail);
1675		}
1676	+	throw new AssertionError("unreached");
1677		}
1678		}
1679
#	Line 1275 | Line 1687 | public class JSR166TestCase extends Test
1687
1688		/**
1689		* A CyclicBarrier that uses timed await and fails with
1690	<	* AssertionFailedErrors instead of throwing checked exceptions.
1690	>	* AssertionErrors instead of throwing checked exceptions.
1691		*/
1692	<	public class CheckedBarrier extends CyclicBarrier {
1692	>	public static class CheckedBarrier extends CyclicBarrier {
1693		public CheckedBarrier(int parties) { super(parties); }
1694
1695		public int await() {
1696		try {
1697		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1698	<	} catch (TimeoutException e) {
1699	<	throw new AssertionFailedError("timed out");
1700	<	} catch (Exception e) {
1701	<	AssertionFailedError afe =
1290	<	new AssertionFailedError("Unexpected exception: " + e);
1291	<	afe.initCause(e);
1292	<	throw afe;
1698	>	} catch (TimeoutException timedOut) {
1699	>	throw new AssertionError("timed out");
1700	>	} catch (Exception fail) {
1701	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1702		}
1703		}
1704		}
#	Line 1300 | Line 1709 | public class JSR166TestCase extends Test
1709		assertEquals(0, q.size());
1710		assertNull(q.peek());
1711		assertNull(q.poll());
1712	<	assertNull(q.poll(0, MILLISECONDS));
1712	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1713		assertEquals(q.toString(), "[]");
1714		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1715		assertFalse(q.iterator().hasNext());
#	Line 1316 | Line 1725 | public class JSR166TestCase extends Test
1725		q.remove();
1726		shouldThrow();
1727		} catch (NoSuchElementException success) {}
1728	<	} catch (InterruptedException ie) {
1320	<	threadUnexpectedException(ie);
1321	<	}
1728	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1729		}
1730
1731		void assertSerialEquals(Object x, Object y) {
#	Line 1337 | Line 1744 | public class JSR166TestCase extends Test
1744		oos.flush();
1745		oos.close();
1746		return bos.toByteArray();
1747	<	} catch (Throwable t) {
1748	<	threadUnexpectedException(t);
1747	>	} catch (Throwable fail) {
1748	>	threadUnexpectedException(fail);
1749		return new byte[0];
1750		}
1751		}
1752
1753	+	void assertImmutable(final Object o) {
1754	+	if (o instanceof Collection) {
1755	+	assertThrows(
1756	+	UnsupportedOperationException.class,
1757	+	new Runnable() { public void run() {
1758	+	((Collection) o).add(null);}});
1759	+	}
1760	+	}
1761	+
1762		@SuppressWarnings("unchecked")
1763		<T> T serialClone(T o) {
1764	+	T clone = null;
1765		try {
1766		ObjectInputStream ois = new ObjectInputStream
1767		(new ByteArrayInputStream(serialBytes(o)));
1768	<	T clone = (T) ois.readObject();
1769	<	assertSame(o.getClass(), clone.getClass());
1770	<	return clone;
1771	<	} catch (Throwable t) {
1772	<	threadUnexpectedException(t);
1768	>	clone = (T) ois.readObject();
1769	>	} catch (Throwable fail) {
1770	>	threadUnexpectedException(fail);
1771	>	}
1772	>	if (o == clone) assertImmutable(o);
1773	>	else assertSame(o.getClass(), clone.getClass());
1774	>	return clone;
1775	>	}
1776	>
1777	>	/**
1778	>	* A version of serialClone that leaves error handling (for
1779	>	* e.g. NotSerializableException) up to the caller.
1780	>	*/
1781	>	@SuppressWarnings("unchecked")
1782	>	<T> T serialClonePossiblyFailing(T o)
1783	>	throws ReflectiveOperationException, java.io.IOException {
1784	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1785	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1786	>	oos.writeObject(o);
1787	>	oos.flush();
1788	>	oos.close();
1789	>	ObjectInputStream ois = new ObjectInputStream
1790	>	(new ByteArrayInputStream(bos.toByteArray()));
1791	>	T clone = (T) ois.readObject();
1792	>	if (o == clone) assertImmutable(o);
1793	>	else assertSame(o.getClass(), clone.getClass());
1794	>	return clone;
1795	>	}
1796	>
1797	>	/**
1798	>	* If o implements Cloneable and has a public clone method,
1799	>	* returns a clone of o, else null.
1800	>	*/
1801	>	@SuppressWarnings("unchecked")
1802	>	<T> T cloneableClone(T o) {
1803	>	if (!(o instanceof Cloneable)) return null;
1804	>	final T clone;
1805	>	try {
1806	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1807	>	} catch (NoSuchMethodException ok) {
1808		return null;
1809	+	} catch (ReflectiveOperationException unexpected) {
1810	+	throw new Error(unexpected);
1811		}
1812	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1813	+	assertSame(o.getClass(), clone.getClass());
1814	+	return clone;
1815		}
1816
1817		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
#	Line 1364 | Line 1821 | public class JSR166TestCase extends Test
1821		try { throwingAction.run(); }
1822		catch (Throwable t) {
1823		threw = true;
1824	<	if (!expectedExceptionClass.isInstance(t)) {
1825	<	AssertionFailedError afe =
1826	<	new AssertionFailedError
1827	<	("Expected " + expectedExceptionClass.getName() +
1828	<	", got " + t.getClass().getName());
1372	<	afe.initCause(t);
1373	<	threadUnexpectedException(afe);
1374	<	}
1824	>	if (!expectedExceptionClass.isInstance(t))
1825	>	throw new AssertionError(
1826	>	"Expected " + expectedExceptionClass.getName() +
1827	>	", got " + t.getClass().getName(),
1828	>	t);
1829		}
1830		if (!threw)
1831		shouldThrow(expectedExceptionClass.getName());
1832		}
1833		}
1834	+
1835	+	public void assertIteratorExhausted(Iterator<?> it) {
1836	+	try {
1837	+	it.next();
1838	+	shouldThrow();
1839	+	} catch (NoSuchElementException success) {}
1840	+	assertFalse(it.hasNext());
1841	+	}
1842	+
1843	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1844	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1845	+	}
1846	+
1847	+	public Runnable runnableThrowing(final RuntimeException ex) {
1848	+	return new Runnable() { public void run() { throw ex; }};
1849	+	}
1850	+
1851	+	/** A reusable thread pool to be shared by tests. */
1852	+	static final ExecutorService cachedThreadPool =
1853	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1854	+	1000L, MILLISECONDS,
1855	+	new SynchronousQueue<Runnable>());
1856	+
1857	+	static <T> void shuffle(T[] array) {
1858	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1859	+	}
1860	+
1861	+	/**
1862	+	* Returns the same String as would be returned by {@link
1863	+	* Object#toString}, whether or not the given object's class
1864	+	* overrides toString().
1865	+	*
1866	+	* @see System#identityHashCode
1867	+	*/
1868	+	static String identityString(Object x) {
1869	+	return x.getClass().getName()
1870	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1871	+	}
1872	+
1873	+	// --- Shared assertions for Executor tests ---
1874	+
1875	+	/**
1876	+	* Returns maximum number of tasks that can be submitted to given
1877	+	* pool (with bounded queue) before saturation (when submission
1878	+	* throws RejectedExecutionException).
1879	+	*/
1880	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1881	+	BlockingQueue<Runnable> q = pool.getQueue();
1882	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1883	+	}
1884	+
1885	+	@SuppressWarnings("FutureReturnValueIgnored")
1886	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1887	+	try {
1888	+	e.execute((Runnable) null);
1889	+	shouldThrow();
1890	+	} catch (NullPointerException success) {}
1891	+
1892	+	if (! (e instanceof ExecutorService)) return;
1893	+	ExecutorService es = (ExecutorService) e;
1894	+	try {
1895	+	es.submit((Runnable) null);
1896	+	shouldThrow();
1897	+	} catch (NullPointerException success) {}
1898	+	try {
1899	+	es.submit((Runnable) null, Boolean.TRUE);
1900	+	shouldThrow();
1901	+	} catch (NullPointerException success) {}
1902	+	try {
1903	+	es.submit((Callable) null);
1904	+	shouldThrow();
1905	+	} catch (NullPointerException success) {}
1906	+
1907	+	if (! (e instanceof ScheduledExecutorService)) return;
1908	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1909	+	try {
1910	+	ses.schedule((Runnable) null,
1911	+	randomTimeout(), randomTimeUnit());
1912	+	shouldThrow();
1913	+	} catch (NullPointerException success) {}
1914	+	try {
1915	+	ses.schedule((Callable) null,
1916	+	randomTimeout(), randomTimeUnit());
1917	+	shouldThrow();
1918	+	} catch (NullPointerException success) {}
1919	+	try {
1920	+	ses.scheduleAtFixedRate((Runnable) null,
1921	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1922	+	shouldThrow();
1923	+	} catch (NullPointerException success) {}
1924	+	try {
1925	+	ses.scheduleWithFixedDelay((Runnable) null,
1926	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1927	+	shouldThrow();
1928	+	} catch (NullPointerException success) {}
1929	+	}
1930	+
1931	+	void setRejectedExecutionHandler(
1932	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1933	+	p.setRejectedExecutionHandler(handler);
1934	+	assertSame(handler, p.getRejectedExecutionHandler());
1935	+	}
1936	+
1937	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1938	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1939	+	final long savedTaskCount = p.getTaskCount();
1940	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1941	+	final int savedQueueSize = p.getQueue().size();
1942	+	final boolean stock = (p.getClass().getClassLoader() == null);
1943	+
1944	+	Runnable r = () -> {};
1945	+	Callable<Boolean> c = () -> Boolean.TRUE;
1946	+
1947	+	class Recorder implements RejectedExecutionHandler {
1948	+	public volatile Runnable r = null;
1949	+	public volatile ThreadPoolExecutor p = null;
1950	+	public void reset() { r = null; p = null; }
1951	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1952	+	assertNull(this.r);
1953	+	assertNull(this.p);
1954	+	this.r = r;
1955	+	this.p = p;
1956	+	}
1957	+	}
1958	+
1959	+	// check custom handler is invoked exactly once per task
1960	+	Recorder recorder = new Recorder();
1961	+	setRejectedExecutionHandler(p, recorder);
1962	+	for (int i = 2; i--> 0; ) {
1963	+	recorder.reset();
1964	+	p.execute(r);
1965	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1966	+	assertSame(r, recorder.r);
1967	+	assertSame(p, recorder.p);
1968	+
1969	+	recorder.reset();
1970	+	assertFalse(p.submit(r).isDone());
1971	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1972	+	assertSame(p, recorder.p);
1973	+
1974	+	recorder.reset();
1975	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1976	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1977	+	assertSame(p, recorder.p);
1978	+
1979	+	recorder.reset();
1980	+	assertFalse(p.submit(c).isDone());
1981	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1982	+	assertSame(p, recorder.p);
1983	+
1984	+	if (p instanceof ScheduledExecutorService) {
1985	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1986	+	ScheduledFuture<?> future;
1987	+
1988	+	recorder.reset();
1989	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
1990	+	assertFalse(future.isDone());
1991	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1992	+	assertSame(p, recorder.p);
1993	+
1994	+	recorder.reset();
1995	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
1996	+	assertFalse(future.isDone());
1997	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1998	+	assertSame(p, recorder.p);
1999	+
2000	+	recorder.reset();
2001	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2002	+	assertFalse(future.isDone());
2003	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2004	+	assertSame(p, recorder.p);
2005	+
2006	+	recorder.reset();
2007	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2008	+	assertFalse(future.isDone());
2009	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2010	+	assertSame(p, recorder.p);
2011	+	}
2012	+	}
2013	+
2014	+	// Checking our custom handler above should be sufficient, but
2015	+	// we add some integration tests of standard handlers.
2016	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2017	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2018	+
2019	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2020	+	try {
2021	+	p.execute(setThread);
2022	+	shouldThrow();
2023	+	} catch (RejectedExecutionException success) {}
2024	+	assertNull(thread.get());
2025	+
2026	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2027	+	p.execute(setThread);
2028	+	assertNull(thread.get());
2029	+
2030	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2031	+	p.execute(setThread);
2032	+	if (p.isShutdown())
2033	+	assertNull(thread.get());
2034	+	else
2035	+	assertSame(Thread.currentThread(), thread.get());
2036	+
2037	+	setRejectedExecutionHandler(p, savedHandler);
2038	+
2039	+	// check that pool was not perturbed by handlers
2040	+	assertEquals(savedTaskCount, p.getTaskCount());
2041	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2042	+	assertEquals(savedQueueSize, p.getQueue().size());
2043	+	}
2044	+
2045	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2046	+	assertEquals(x, y);
2047	+	assertEquals(y, x);
2048	+	assertEquals(x.isEmpty(), y.isEmpty());
2049	+	assertEquals(x.size(), y.size());
2050	+	if (x instanceof List) {
2051	+	assertEquals(x.toString(), y.toString());
2052	+	}
2053	+	if (x instanceof List || x instanceof Set) {
2054	+	assertEquals(x.hashCode(), y.hashCode());
2055	+	}
2056	+	if (x instanceof List || x instanceof Deque) {
2057	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2058	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2059	+	y.toArray(new Object[0])));
2060	+	}
2061	+	}
2062	+
2063	+	/**
2064	+	* A weaker form of assertCollectionsEquals which does not insist
2065	+	* that the two collections satisfy Object#equals(Object), since
2066	+	* they may use identity semantics as Deques do.
2067	+	*/
2068	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2069	+	if (x instanceof List || x instanceof Set)
2070	+	assertCollectionsEquals(x, y);
2071	+	else {
2072	+	assertEquals(x.isEmpty(), y.isEmpty());
2073	+	assertEquals(x.size(), y.size());
2074	+	assertEquals(new HashSet(x), new HashSet(y));
2075	+	if (x instanceof Deque) {
2076	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2077	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2078	+	y.toArray(new Object[0])));
2079	+	}
2080	+	}
2081	+	}
2082		}

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