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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.126 by jsr166, Sat Jan 17 22:55:06 2015 UTC vs.
Revision 1.249 by jsr166, Sat Nov 24 21:41:20 2018 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
2	>	* Written by Doug Lea and Martin Buchholz with assistance from
3	>	* members of JCP JSR-166 Expert Group and released to the public
4	>	* domain, as explained at
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		* Other contributors include Andrew Wright, Jeffrey Hayes,
7		* Pat Fisher, Mike Judd.
8		*/
9
10	+	/*
11	+	* @test
12	+	* @summary JSR-166 tck tests, in a number of variations.
13	+	*          The first is the conformance testing variant,
14	+	*          while others also test implementation details.
15	+	* @build *
16	+	* @modules java.management
17	+	* @run junit/othervm/timeout=1000 JSR166TestCase
18	+	* @run junit/othervm/timeout=1000
19	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
20	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
21	+	*      -Djsr166.testImplementationDetails=true
22	+	*      JSR166TestCase
23	+	* @run junit/othervm/timeout=1000
24	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
25	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
26	+	*      -Djsr166.testImplementationDetails=true
27	+	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
28	+	*      JSR166TestCase
29	+	* @run junit/othervm/timeout=1000
30	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
31	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
32	+	*      -Djsr166.testImplementationDetails=true
33	+	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
34	+	*      -Djava.util.secureRandomSeed=true
35	+	*      JSR166TestCase
36	+	* @run junit/othervm/timeout=1000/policy=tck.policy
37	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
38	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
39	+	*      -Djsr166.testImplementationDetails=true
40	+	*      JSR166TestCase
41	+	*/
42	+
43		import static java.util.concurrent.TimeUnit.MILLISECONDS;
44	+	import static java.util.concurrent.TimeUnit.MINUTES;
45		import static java.util.concurrent.TimeUnit.NANOSECONDS;
46
47		import java.io.ByteArrayInputStream;
#	Line 15 | Line 50 | import java.io.ObjectInputStream;
50		import java.io.ObjectOutputStream;
51		import java.lang.management.ManagementFactory;
52		import java.lang.management.ThreadInfo;
53	+	import java.lang.management.ThreadMXBean;
54	+	import java.lang.reflect.Constructor;
55		import java.lang.reflect.Method;
56	+	import java.lang.reflect.Modifier;
57		import java.security.CodeSource;
58		import java.security.Permission;
59		import java.security.PermissionCollection;
#	Line 25 | Line 63 | import java.security.ProtectionDomain;
63		import java.security.SecurityPermission;
64		import java.util.ArrayList;
65		import java.util.Arrays;
66	+	import java.util.Collection;
67	+	import java.util.Collections;
68		import java.util.Date;
69	+	import java.util.Deque;
70		import java.util.Enumeration;
71	+	import java.util.HashSet;
72		import java.util.Iterator;
73		import java.util.List;
74		import java.util.NoSuchElementException;
75		import java.util.PropertyPermission;
76	+	import java.util.Set;
77		import java.util.concurrent.BlockingQueue;
78		import java.util.concurrent.Callable;
79		import java.util.concurrent.CountDownLatch;
80		import java.util.concurrent.CyclicBarrier;
81	+	import java.util.concurrent.ExecutionException;
82	+	import java.util.concurrent.Executor;
83	+	import java.util.concurrent.Executors;
84		import java.util.concurrent.ExecutorService;
85	+	import java.util.concurrent.ForkJoinPool;
86		import java.util.concurrent.Future;
87	+	import java.util.concurrent.FutureTask;
88		import java.util.concurrent.RecursiveAction;
89		import java.util.concurrent.RecursiveTask;
90	+	import java.util.concurrent.RejectedExecutionException;
91		import java.util.concurrent.RejectedExecutionHandler;
92		import java.util.concurrent.Semaphore;
93	+	import java.util.concurrent.ScheduledExecutorService;
94	+	import java.util.concurrent.ScheduledFuture;
95	+	import java.util.concurrent.SynchronousQueue;
96		import java.util.concurrent.ThreadFactory;
97	+	import java.util.concurrent.ThreadLocalRandom;
98		import java.util.concurrent.ThreadPoolExecutor;
99	+	import java.util.concurrent.TimeUnit;
100		import java.util.concurrent.TimeoutException;
101	+	import java.util.concurrent.atomic.AtomicBoolean;
102		import java.util.concurrent.atomic.AtomicReference;
103		import java.util.regex.Pattern;
104
50	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107	+	import junit.framework.TestResult;
108		import junit.framework.TestSuite;
109
110		/**
#	Line 62 | Line 117 | import junit.framework.TestSuite;
117		*
118		* <ol>
119		*
120	<	* <li> All assertions in code running in generated threads must use
121	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
122	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
123	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
124	<	* particularly recommended) for other code to use these forms too.
125	<	* Only the most typically used JUnit assertion methods are defined
126	<	* this way, but enough to live with.</li>
120	>	* <li>All code not running in the main test thread (manually spawned threads
121	>	* or the common fork join pool) must be checked for failure (and completion!).
122	>	* Mechanisms that can be used to ensure this are:
123	>	*   <ol>
124	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
125	>	*    that the task completed normally, which is checked before returning from
126	>	*    the test method in the main thread.
127	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
128	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
129	>	*    Only the most typically used JUnit assertion methods are defined
130	>	*    this way, but enough to live with.
131	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
132	>	*    or {@link #threadRecordFailure}.
133	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
134	>	*   </ol>
135		*
136	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
136	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
137		* to invoke {@code super.setUp} and {@code super.tearDown} within
138		* them. These methods are used to clear and check for thread
139	<	* assertion failures.</li>
139	>	* assertion failures.
140		*
141		* <li>All delays and timeouts must use one of the constants {@code
142		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 84 | Line 147 | import junit.framework.TestSuite;
147		* is always discriminable as larger than SHORT and smaller than
148		* MEDIUM.  And so on. These constants are set to conservative values,
149		* but even so, if there is ever any doubt, they can all be increased
150	<	* in one spot to rerun tests on slower platforms.</li>
150	>	* in one spot to rerun tests on slower platforms.
151		*
152	<	* <li> All threads generated must be joined inside each test case
152	>	* <li>All threads generated must be joined inside each test case
153		* method (or {@code fail} to do so) before returning from the
154		* method. The {@code joinPool} method can be used to do this when
155	<	* using Executors.</li>
155	>	* using Executors.
156		*
157		* </ol>
158		*
159		* <p><b>Other notes</b>
160		* <ul>
161		*
162	<	* <li> Usually, there is one testcase method per JSR166 method
162	>	* <li>Usually, there is one testcase method per JSR166 method
163		* covering "normal" operation, and then as many exception-testing
164		* methods as there are exceptions the method can throw. Sometimes
165		* there are multiple tests per JSR166 method when the different
166		* "normal" behaviors differ significantly. And sometimes testcases
167	<	* cover multiple methods when they cannot be tested in
105	<	* 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 160 | 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 171 | Line 280 | public class JSR166TestCase extends Test
280		return (regex == null) ? null : Pattern.compile(regex);
281		}
282
283	<	protected void runTest() throws Throwable {
283	>	// Instrumentation to debug very rare, but very annoying hung test runs.
284	>	static volatile TestCase currentTestCase;
285	>	// static volatile int currentRun = 0;
286	>	static {
287	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
288	>	// Avoid spurious reports with enormous runsPerTest.
289	>	// A single test case run should never take more than 1 second.
290	>	// But let's cap it at the high end too ...
291	>	final int timeoutMinutes =
292	>	Math.min(15, Math.max(runsPerTest / 60, 1));
293	>	for (TestCase lastTestCase = currentTestCase;;) {
294	>	try { MINUTES.sleep(timeoutMinutes); }
295	>	catch (InterruptedException unexpected) { break; }
296	>	if (lastTestCase == currentTestCase) {
297	>	System.err.printf(
298	>	"Looks like we're stuck running test: %s%n",
299	>	lastTestCase);
300	>	//                     System.err.printf(
301	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
302	>	//                         lastTestCase, currentRun, runsPerTest);
303	>	//                     System.err.println("availableProcessors=" +
304	>	//                         Runtime.getRuntime().availableProcessors());
305	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
306	>	dumpTestThreads();
307	>	// one stack dump is probably enough; more would be spam
308	>	break;
309	>	}
310	>	lastTestCase = currentTestCase;
311	>	}}};
312	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
313	>	thread.setDaemon(true);
314	>	thread.start();
315	>	}
316	>
317	>	//     public static String cpuModel() {
318	>	//         try {
319	>	//             java.util.regex.Matcher matcher
320	>	//               = Pattern.compile("model name\\s*: (.*)")
321	>	//                 .matcher(new String(
322	>	//                     java.nio.file.Files.readAllBytes(
323	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
324	>	//             matcher.find();
325	>	//             return matcher.group(1);
326	>	//         } catch (Exception ex) { return null; }
327	>	//     }
328	>
329	>	public void runBare() throws Throwable {
330	>	currentTestCase = this;
331		if (methodFilter == null
332	<	|| methodFilter.matcher(toString()).find()) {
333	<	for (int i = 0; i < runsPerTest; i++) {
334	<	if (profileTests)
335	<	runTestProfiled();
336	<	else
337	<	super.runTest();
338	<	}
332	>	|| methodFilter.matcher(toString()).find())
333	>	super.runBare();
334	>	}
335	>
336	>	protected void runTest() throws Throwable {
337	>	for (int i = 0; i < runsPerTest; i++) {
338	>	// currentRun = i;
339	>	if (profileTests)
340	>	runTestProfiled();
341	>	else
342	>	super.runTest();
343		}
344		}
345
346		protected void runTestProfiled() throws Throwable {
347	<	// Warmup run, notably to trigger all needed classloading.
348	<	super.runTest();
189	<	long t0 = System.nanoTime();
190	<	try {
347	>	for (int i = 0; i < 2; i++) {
348	>	long startTime = System.nanoTime();
349		super.runTest();
350	<	} finally {
351	<	long elapsedMillis = millisElapsedSince(t0);
352	<	if (elapsedMillis >= profileThreshold)
350	>	long elapsedMillis = millisElapsedSince(startTime);
351	>	if (elapsedMillis < profileThreshold)
352	>	break;
353	>	// Never report first run of any test; treat it as a
354	>	// warmup run, notably to trigger all needed classloading,
355	>	if (i > 0)
356		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
357		}
358		}
359
360		/**
361		* Runs all JSR166 unit tests using junit.textui.TestRunner.
201	–	* Optional command line arg provides the number of iterations to
202	–	* 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) {
214	<	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		}
218	–	System.exit(0);
412		}
413
414		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 236 | 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",
240	<	new Class<?>[0]);
432	>	Method m = testClass.getDeclaredMethod("suite");
433		suite.addTest(newTestSuite((Test)m.invoke(null)));
434	<	} catch (Exception e) {
435	<	throw new Error("Missing test class", e);
434	>	} catch (ReflectiveOperationException e) {
435	>	throw new AssertionError("Missing test class", e);
436		}
437		}
438		}
#	Line 262 | Line 454 | public class JSR166TestCase extends Test
454		}
455		}
456
457	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
458	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
459	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
460	<	public static boolean atLeastJava9() {
461	<	// As of 2014-05, java9 still uses 52.0 class file version
462	<	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
271	<	}
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 289 | 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 311 | 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 339 | Line 532 | public class JSR166TestCase extends Test
532		TreeMapTest.suite(),
533		TreeSetTest.suite(),
534		TreeSubMapTest.suite(),
535	<	TreeSubSetTest.suite());
535	>	TreeSubSetTest.suite(),
536	>	VectorTest.suite());
537
538		// Java8+ test classes
539		if (atLeastJava8()) {
540		String[] java8TestClassNames = {
541	+	"ArrayDeque8Test",
542		"Atomic8Test",
543		"CompletableFutureTest",
544		"ConcurrentHashMap8Test",
545	<	"CountedCompleterTest",
545	>	"CountedCompleter8Test",
546		"DoubleAccumulatorTest",
547		"DoubleAdderTest",
548		"ForkJoinPool8Test",
549		"ForkJoinTask8Test",
550	+	"HashMapTest",
551	+	"LinkedBlockingDeque8Test",
552	+	"LinkedBlockingQueue8Test",
553		"LongAccumulatorTest",
554		"LongAdderTest",
555		"SplittableRandomTest",
556		"StampedLockTest",
557	+	"SubmissionPublisherTest",
558		"ThreadLocalRandom8Test",
559	+	"TimeUnit8Test",
560		};
561		addNamedTestClasses(suite, java8TestClassNames);
562		}
#	Line 364 | Line 564 | public class JSR166TestCase extends Test
564		// Java9+ test classes
565		if (atLeastJava9()) {
566		String[] java9TestClassNames = {
567	<	"ThreadPoolExecutor9Test",
567	>	"AtomicBoolean9Test",
568	>	"AtomicInteger9Test",
569	>	"AtomicIntegerArray9Test",
570	>	"AtomicLong9Test",
571	>	"AtomicLongArray9Test",
572	>	"AtomicReference9Test",
573	>	"AtomicReferenceArray9Test",
574	>	"ExecutorCompletionService9Test",
575	>	"ForkJoinPool9Test",
576		};
577		addNamedTestClasses(suite, java9TestClassNames);
578		}
#	Line 372 | Line 580 | public class JSR166TestCase extends Test
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;
#	Line 379 | Line 648 | public class JSR166TestCase extends Test
648		public static long MEDIUM_DELAY_MS;
649		public static long LONG_DELAY_MS;
650
651	+	private static final long RANDOM_TIMEOUT;
652	+	private static final long RANDOM_EXPIRED_TIMEOUT;
653	+	private static final TimeUnit RANDOM_TIMEUNIT;
654	+	static {
655	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
656	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
657	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
658	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
659	+	TimeUnit[] timeUnits = TimeUnit.values();
660	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
661	+	}
662	+
663	+	/**
664	+	* Returns a timeout for use when any value at all will do.
665	+	*/
666	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
667	+
668	+	/**
669	+	* Returns 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 could
680	<	* be reimplemented to use for example a Property.
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 397 | 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 426 | 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 433 | 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 451 | 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 =
456	<	new AssertionFailedError(t.toString());
457	<	afe.initCause(t);
458	<	throw afe;
459	<	}
767	>	else
768	>	throw new AssertionError(t.toString(), t);
769		}
770
771		if (Thread.interrupted())
772	<	throw new AssertionFailedError("interrupt status set in main thread");
772	>	tearDownFail("interrupt status set in main thread");
773
774		checkForkJoinPoolThreadLeaks();
775		}
776
777		/**
778	<	* Finds missing try { ... } finally { joinPool(e); }
778	>	* Finds missing PoolCleaners
779		*/
780		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
781	<	Thread[] survivors = new Thread[5];
781	>	Thread[] survivors = new Thread[7];
782		int count = Thread.enumerate(survivors);
783		for (int i = 0; i < count; i++) {
784		Thread thread = survivors[i];
#	Line 477 | 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
483	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
484	<	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 602 | 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 612 | 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 =
617	<	new AssertionFailedError("unexpected exception: " + t);
618	<	afe.initCause(t);
619	<	throw afe;
620	<	}
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	<	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1010	<	fail("ExecutorService " + exec +
1011	<	" did not terminate in a timely manner");
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() {
664	<	for (ThreadInfo info :
665	<	ManagementFactory.getThreadMXBean()
666	<	.dumpAllThreads(true, true))
667	<	System.err.print(info);
668	<	}
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		}
689	–	}
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 727 | 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 748 | 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 851 | 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 879 | 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 =
889	<	new AssertionFailedError("Unexpected InterruptedException");
890	<	afe.initCause(ie);
891	<	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		/**
#	Line 937 | Line 1371 | public class JSR166TestCase extends Test
1371		//             r.run();
1372		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1373		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1374	<	//             throw new AssertionFailedError("did not return promptly");
1374	>	//             throw new AssertionError("did not return promptly");
1375		//     }
1376
1377		//     void assertTerminatesPromptly(Runnable r) {
#	Line 950 | Line 1384 | public class JSR166TestCase extends Test
1384		*/
1385		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1386		long startTime = System.nanoTime();
1387	+	T actual = null;
1388		try {
1389	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
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 AssertionFailedError("timed get did not return promptly");
1393	>	throw new AssertionError("timed get did not return promptly");
1394		}
1395
1396		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 979 | 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 1006 | Line 1442 | public class JSR166TestCase extends Test
1442		public final void run() {
1443		try {
1444		realRun();
1445	<	} catch (Throwable t) {
1446	<	threadUnexpectedException(t);
1011	<	}
1012	<	}
1013	<	}
1014	<
1015	<	public abstract class RunnableShouldThrow implements Runnable {
1016	<	protected abstract void realRun() throws Throwable;
1017	<
1018	<	final Class<?> exceptionClass;
1019	<
1020	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1021	<	this.exceptionClass = exceptionClass;
1022	<	}
1023	<
1024	<	public final void run() {
1025	<	try {
1026	<	realRun();
1027	<	threadShouldThrow(exceptionClass.getSimpleName());
1028	<	} catch (Throwable t) {
1029	<	if (! exceptionClass.isInstance(t))
1030	<	threadUnexpectedException(t);
1445	>	} catch (Throwable fail) {
1446	>	threadUnexpectedException(fail);
1447		}
1448		}
1449		}
#	Line 1044 | Line 1460 | public class JSR166TestCase extends Test
1460		public final void run() {
1461		try {
1462		realRun();
1047	–	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 1058 | Line 1475 | public class JSR166TestCase extends Test
1475		public final void run() {
1476		try {
1477		realRun();
1061	–	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 1073 | Line 1491 | public class JSR166TestCase extends Test
1491		public final T call() {
1492		try {
1493		return realCall();
1494	<	} catch (Throwable t) {
1495	<	threadUnexpectedException(t);
1078	<	return null;
1494	>	} catch (Throwable fail) {
1495	>	threadUnexpectedException(fail);
1496		}
1497	<	}
1081	<	}
1082	<
1083	<	public abstract class CheckedInterruptedCallable<T>
1084	<	implements Callable<T> {
1085	<	protected abstract T realCall() throws Throwable;
1086	<
1087	<	public final T call() {
1088	<	try {
1089	<	T result = realCall();
1090	<	threadShouldThrow("InterruptedException");
1091	<	return result;
1092	<	} catch (InterruptedException success) {
1093	<	threadAssertFalse(Thread.interrupted());
1094	<	} catch (Throwable t) {
1095	<	threadUnexpectedException(t);
1096	<	}
1097	<	return null;
1497	>	throw new AssertionError("unreached");
1498		}
1499		}
1500
#	Line 1109 | 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 1122 | 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 1159 | 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 1168 | Line 1609 | public class JSR166TestCase extends Test
1609		public String call() { throw new NullPointerException(); }
1610		}
1611
1171	–	public static class CallableOne implements Callable<Integer> {
1172	–	public Integer call() { return one; }
1173	–	}
1174	–
1175	–	public class ShortRunnable extends CheckedRunnable {
1176	–	protected void realRun() throws Throwable {
1177	–	delay(SHORT_DELAY_MS);
1178	–	}
1179	–	}
1180	–
1181	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1182	–	protected void realRun() throws InterruptedException {
1183	–	delay(SHORT_DELAY_MS);
1184	–	}
1185	–	}
1186	–
1187	–	public class SmallRunnable extends CheckedRunnable {
1188	–	protected void realRun() throws Throwable {
1189	–	delay(SMALL_DELAY_MS);
1190	–	}
1191	–	}
1192	–
1193	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1194	–	protected void realRun() {
1195	–	try {
1196	–	delay(SMALL_DELAY_MS);
1197	–	} catch (InterruptedException ok) {}
1198	–	}
1199	–	}
1200	–
1201	–	public class SmallCallable extends CheckedCallable {
1202	–	protected Object realCall() throws InterruptedException {
1203	–	delay(SMALL_DELAY_MS);
1204	–	return Boolean.TRUE;
1205	–	}
1206	–	}
1207	–
1208	–	public class MediumRunnable extends CheckedRunnable {
1209	–	protected void realRun() throws Throwable {
1210	–	delay(MEDIUM_DELAY_MS);
1211	–	}
1212	–	}
1213	–
1214	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1215	–	protected void realRun() throws InterruptedException {
1216	–	delay(MEDIUM_DELAY_MS);
1217	–	}
1218	–	}
1219	–
1612		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1613		return new CheckedRunnable() {
1614		protected void realRun() {
#	Line 1226 | Line 1618 | public class JSR166TestCase extends Test
1618		}};
1619		}
1620
1229	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1230	–	protected void realRun() {
1231	–	try {
1232	–	delay(MEDIUM_DELAY_MS);
1233	–	} catch (InterruptedException ok) {}
1234	–	}
1235	–	}
1236	–
1237	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1238	–	protected void realRun() {
1239	–	try {
1240	–	delay(LONG_DELAY_MS);
1241	–	} catch (InterruptedException ok) {}
1242	–	}
1243	–	}
1244	–
1621		/**
1622		* For use as ThreadFactory in constructors
1623		*/
#	Line 1255 | Line 1631 | public class JSR166TestCase extends Test
1631		boolean isDone();
1632		}
1633
1258	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1259	–	return new TrackedRunnable() {
1260	–	private volatile boolean done = false;
1261	–	public boolean isDone() { return done; }
1262	–	public void run() {
1263	–	try {
1264	–	delay(timeoutMillis);
1265	–	done = true;
1266	–	} catch (InterruptedException ok) {}
1267	–	}
1268	–	};
1269	–	}
1270	–
1271	–	public static class TrackedShortRunnable implements Runnable {
1272	–	public volatile boolean done = false;
1273	–	public void run() {
1274	–	try {
1275	–	delay(SHORT_DELAY_MS);
1276	–	done = true;
1277	–	} catch (InterruptedException ok) {}
1278	–	}
1279	–	}
1280	–
1281	–	public static class TrackedSmallRunnable implements Runnable {
1282	–	public volatile boolean done = false;
1283	–	public void run() {
1284	–	try {
1285	–	delay(SMALL_DELAY_MS);
1286	–	done = true;
1287	–	} catch (InterruptedException ok) {}
1288	–	}
1289	–	}
1290	–
1291	–	public static class TrackedMediumRunnable implements Runnable {
1292	–	public volatile boolean done = false;
1293	–	public void run() {
1294	–	try {
1295	–	delay(MEDIUM_DELAY_MS);
1296	–	done = true;
1297	–	} catch (InterruptedException ok) {}
1298	–	}
1299	–	}
1300	–
1301	–	public static class TrackedLongRunnable implements Runnable {
1302	–	public volatile boolean done = false;
1303	–	public void run() {
1304	–	try {
1305	–	delay(LONG_DELAY_MS);
1306	–	done = true;
1307	–	} catch (InterruptedException ok) {}
1308	–	}
1309	–	}
1310	–
1634		public static class TrackedNoOpRunnable implements Runnable {
1635		public volatile boolean done = false;
1636		public void run() {
#	Line 1315 | Line 1638 | public class JSR166TestCase extends Test
1638		}
1639		}
1640
1318	–	public static class TrackedCallable implements Callable {
1319	–	public volatile boolean done = false;
1320	–	public Object call() {
1321	–	try {
1322	–	delay(SMALL_DELAY_MS);
1323	–	done = true;
1324	–	} catch (InterruptedException ok) {}
1325	–	return Boolean.TRUE;
1326	–	}
1327	–	}
1328	–
1641		/**
1642		* Analog of CheckedRunnable for RecursiveAction
1643		*/
#	Line 1335 | Line 1647 | public class JSR166TestCase extends Test
1647		@Override protected final void compute() {
1648		try {
1649		realCompute();
1650	<	} catch (Throwable t) {
1651	<	threadUnexpectedException(t);
1650	>	} catch (Throwable fail) {
1651	>	threadUnexpectedException(fail);
1652		}
1653		}
1654		}
#	Line 1350 | Line 1662 | public class JSR166TestCase extends Test
1662		@Override protected final T compute() {
1663		try {
1664		return realCompute();
1665	<	} catch (Throwable t) {
1666	<	threadUnexpectedException(t);
1355	<	return null;
1665	>	} catch (Throwable fail) {
1666	>	threadUnexpectedException(fail);
1667		}
1668	+	throw new AssertionError("unreached");
1669		}
1670		}
1671
#	Line 1367 | Line 1679 | public class JSR166TestCase extends Test
1679
1680		/**
1681		* A CyclicBarrier that uses timed await and fails with
1682	<	* AssertionFailedErrors instead of throwing checked exceptions.
1682	>	* AssertionErrors instead of throwing checked exceptions.
1683		*/
1684	<	public class CheckedBarrier extends CyclicBarrier {
1684	>	public static class CheckedBarrier extends CyclicBarrier {
1685		public CheckedBarrier(int parties) { super(parties); }
1686
1687		public int await() {
1688		try {
1689		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1690	<	} catch (TimeoutException e) {
1691	<	throw new AssertionFailedError("timed out");
1692	<	} catch (Exception e) {
1693	<	AssertionFailedError afe =
1382	<	new AssertionFailedError("Unexpected exception: " + e);
1383	<	afe.initCause(e);
1384	<	throw afe;
1690	>	} catch (TimeoutException timedOut) {
1691	>	throw new AssertionError("timed out");
1692	>	} catch (Exception fail) {
1693	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1694		}
1695		}
1696		}
#	Line 1392 | Line 1701 | public class JSR166TestCase extends Test
1701		assertEquals(0, q.size());
1702		assertNull(q.peek());
1703		assertNull(q.poll());
1704	<	assertNull(q.poll(0, MILLISECONDS));
1704	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1705		assertEquals(q.toString(), "[]");
1706		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1707		assertFalse(q.iterator().hasNext());
#	Line 1408 | Line 1717 | public class JSR166TestCase extends Test
1717		q.remove();
1718		shouldThrow();
1719		} catch (NoSuchElementException success) {}
1720	<	} catch (InterruptedException ie) {
1412	<	threadUnexpectedException(ie);
1413	<	}
1720	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1721		}
1722
1723		void assertSerialEquals(Object x, Object y) {
#	Line 1429 | Line 1736 | public class JSR166TestCase extends Test
1736		oos.flush();
1737		oos.close();
1738		return bos.toByteArray();
1739	<	} catch (Throwable t) {
1740	<	threadUnexpectedException(t);
1739	>	} catch (Throwable fail) {
1740	>	threadUnexpectedException(fail);
1741		return new byte[0];
1742		}
1743		}
1744
1745	+	void assertImmutable(final Object o) {
1746	+	if (o instanceof Collection) {
1747	+	assertThrows(
1748	+	UnsupportedOperationException.class,
1749	+	new Runnable() { public void run() {
1750	+	((Collection) o).add(null);}});
1751	+	}
1752	+	}
1753	+
1754		@SuppressWarnings("unchecked")
1755		<T> T serialClone(T o) {
1756	+	T clone = null;
1757		try {
1758		ObjectInputStream ois = new ObjectInputStream
1759		(new ByteArrayInputStream(serialBytes(o)));
1760	<	T clone = (T) ois.readObject();
1761	<	assertSame(o.getClass(), clone.getClass());
1762	<	return clone;
1763	<	} catch (Throwable t) {
1764	<	threadUnexpectedException(t);
1760	>	clone = (T) ois.readObject();
1761	>	} catch (Throwable fail) {
1762	>	threadUnexpectedException(fail);
1763	>	}
1764	>	if (o == clone) assertImmutable(o);
1765	>	else assertSame(o.getClass(), clone.getClass());
1766	>	return clone;
1767	>	}
1768	>
1769	>	/**
1770	>	* A version of serialClone that leaves error handling (for
1771	>	* e.g. NotSerializableException) up to the caller.
1772	>	*/
1773	>	@SuppressWarnings("unchecked")
1774	>	<T> T serialClonePossiblyFailing(T o)
1775	>	throws ReflectiveOperationException, java.io.IOException {
1776	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1777	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1778	>	oos.writeObject(o);
1779	>	oos.flush();
1780	>	oos.close();
1781	>	ObjectInputStream ois = new ObjectInputStream
1782	>	(new ByteArrayInputStream(bos.toByteArray()));
1783	>	T clone = (T) ois.readObject();
1784	>	if (o == clone) assertImmutable(o);
1785	>	else assertSame(o.getClass(), clone.getClass());
1786	>	return clone;
1787	>	}
1788	>
1789	>	/**
1790	>	* If o implements Cloneable and has a public clone method,
1791	>	* returns a clone of o, else null.
1792	>	*/
1793	>	@SuppressWarnings("unchecked")
1794	>	<T> T cloneableClone(T o) {
1795	>	if (!(o instanceof Cloneable)) return null;
1796	>	final T clone;
1797	>	try {
1798	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1799	>	} catch (NoSuchMethodException ok) {
1800		return null;
1801	+	} catch (ReflectiveOperationException unexpected) {
1802	+	throw new Error(unexpected);
1803		}
1804	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1805	+	assertSame(o.getClass(), clone.getClass());
1806	+	return clone;
1807		}
1808
1809		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
#	Line 1456 | Line 1813 | public class JSR166TestCase extends Test
1813		try { throwingAction.run(); }
1814		catch (Throwable t) {
1815		threw = true;
1816	<	if (!expectedExceptionClass.isInstance(t)) {
1817	<	AssertionFailedError afe =
1818	<	new AssertionFailedError
1819	<	("Expected " + expectedExceptionClass.getName() +
1820	<	", got " + t.getClass().getName());
1464	<	afe.initCause(t);
1465	<	threadUnexpectedException(afe);
1466	<	}
1816	>	if (!expectedExceptionClass.isInstance(t))
1817	>	throw new AssertionError(
1818	>	"Expected " + expectedExceptionClass.getName() +
1819	>	", got " + t.getClass().getName(),
1820	>	t);
1821		}
1822		if (!threw)
1823		shouldThrow(expectedExceptionClass.getName());
#	Line 1476 | Line 1830 | public class JSR166TestCase extends Test
1830		shouldThrow();
1831		} catch (NoSuchElementException success) {}
1832		assertFalse(it.hasNext());
1833	<	}
1833	>	}
1834	>
1835	>	public <T> Callable<T> callableThrowing(final Exception ex) {
1836	>	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1837	>	}
1838	>
1839	>	public Runnable runnableThrowing(final RuntimeException ex) {
1840	>	return new Runnable() { public void run() { throw ex; }};
1841	>	}
1842	>
1843	>	/** A reusable thread pool to be shared by tests. */
1844	>	static final ExecutorService cachedThreadPool =
1845	>	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1846	>	1000L, MILLISECONDS,
1847	>	new SynchronousQueue<Runnable>());
1848	>
1849	>	static <T> void shuffle(T[] array) {
1850	>	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1851	>	}
1852	>
1853	>	/**
1854	>	* Returns the same String as would be returned by {@link
1855	>	* Object#toString}, whether or not the given object's class
1856	>	* overrides toString().
1857	>	*
1858	>	* @see System#identityHashCode
1859	>	*/
1860	>	static String identityString(Object x) {
1861	>	return x.getClass().getName()
1862	>	+ "@" + Integer.toHexString(System.identityHashCode(x));
1863	>	}
1864	>
1865	>	// --- Shared assertions for Executor tests ---
1866	>
1867	>	/**
1868	>	* Returns maximum number of tasks that can be submitted to given
1869	>	* pool (with bounded queue) before saturation (when submission
1870	>	* throws RejectedExecutionException).
1871	>	*/
1872	>	static final int saturatedSize(ThreadPoolExecutor pool) {
1873	>	BlockingQueue<Runnable> q = pool.getQueue();
1874	>	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1875	>	}
1876	>
1877	>	@SuppressWarnings("FutureReturnValueIgnored")
1878	>	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1879	>	try {
1880	>	e.execute((Runnable) null);
1881	>	shouldThrow();
1882	>	} catch (NullPointerException success) {}
1883	>
1884	>	if (! (e instanceof ExecutorService)) return;
1885	>	ExecutorService es = (ExecutorService) e;
1886	>	try {
1887	>	es.submit((Runnable) null);
1888	>	shouldThrow();
1889	>	} catch (NullPointerException success) {}
1890	>	try {
1891	>	es.submit((Runnable) null, Boolean.TRUE);
1892	>	shouldThrow();
1893	>	} catch (NullPointerException success) {}
1894	>	try {
1895	>	es.submit((Callable) null);
1896	>	shouldThrow();
1897	>	} catch (NullPointerException success) {}
1898	>
1899	>	if (! (e instanceof ScheduledExecutorService)) return;
1900	>	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1901	>	try {
1902	>	ses.schedule((Runnable) null,
1903	>	randomTimeout(), randomTimeUnit());
1904	>	shouldThrow();
1905	>	} catch (NullPointerException success) {}
1906	>	try {
1907	>	ses.schedule((Callable) null,
1908	>	randomTimeout(), randomTimeUnit());
1909	>	shouldThrow();
1910	>	} catch (NullPointerException success) {}
1911	>	try {
1912	>	ses.scheduleAtFixedRate((Runnable) null,
1913	>	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1914	>	shouldThrow();
1915	>	} catch (NullPointerException success) {}
1916	>	try {
1917	>	ses.scheduleWithFixedDelay((Runnable) null,
1918	>	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1919	>	shouldThrow();
1920	>	} catch (NullPointerException success) {}
1921	>	}
1922	>
1923	>	void setRejectedExecutionHandler(
1924	>	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1925	>	p.setRejectedExecutionHandler(handler);
1926	>	assertSame(handler, p.getRejectedExecutionHandler());
1927	>	}
1928	>
1929	>	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1930	>	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1931	>	final long savedTaskCount = p.getTaskCount();
1932	>	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1933	>	final int savedQueueSize = p.getQueue().size();
1934	>	final boolean stock = (p.getClass().getClassLoader() == null);
1935	>
1936	>	Runnable r = () -> {};
1937	>	Callable<Boolean> c = () -> Boolean.TRUE;
1938	>
1939	>	class Recorder implements RejectedExecutionHandler {
1940	>	public volatile Runnable r = null;
1941	>	public volatile ThreadPoolExecutor p = null;
1942	>	public void reset() { r = null; p = null; }
1943	>	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1944	>	assertNull(this.r);
1945	>	assertNull(this.p);
1946	>	this.r = r;
1947	>	this.p = p;
1948	>	}
1949	>	}
1950	>
1951	>	// check custom handler is invoked exactly once per task
1952	>	Recorder recorder = new Recorder();
1953	>	setRejectedExecutionHandler(p, recorder);
1954	>	for (int i = 2; i--> 0; ) {
1955	>	recorder.reset();
1956	>	p.execute(r);
1957	>	if (stock && p.getClass() == ThreadPoolExecutor.class)
1958	>	assertSame(r, recorder.r);
1959	>	assertSame(p, recorder.p);
1960	>
1961	>	recorder.reset();
1962	>	assertFalse(p.submit(r).isDone());
1963	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1964	>	assertSame(p, recorder.p);
1965	>
1966	>	recorder.reset();
1967	>	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1968	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1969	>	assertSame(p, recorder.p);
1970	>
1971	>	recorder.reset();
1972	>	assertFalse(p.submit(c).isDone());
1973	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1974	>	assertSame(p, recorder.p);
1975	>
1976	>	if (p instanceof ScheduledExecutorService) {
1977	>	ScheduledExecutorService s = (ScheduledExecutorService) p;
1978	>	ScheduledFuture<?> future;
1979	>
1980	>	recorder.reset();
1981	>	future = s.schedule(r, randomTimeout(), randomTimeUnit());
1982	>	assertFalse(future.isDone());
1983	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1984	>	assertSame(p, recorder.p);
1985	>
1986	>	recorder.reset();
1987	>	future = s.schedule(c, randomTimeout(), randomTimeUnit());
1988	>	assertFalse(future.isDone());
1989	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1990	>	assertSame(p, recorder.p);
1991	>
1992	>	recorder.reset();
1993	>	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1994	>	assertFalse(future.isDone());
1995	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1996	>	assertSame(p, recorder.p);
1997	>
1998	>	recorder.reset();
1999	>	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2000	>	assertFalse(future.isDone());
2001	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2002	>	assertSame(p, recorder.p);
2003	>	}
2004	>	}
2005	>
2006	>	// Checking our custom handler above should be sufficient, but
2007	>	// we add some integration tests of standard handlers.
2008	>	final AtomicReference<Thread> thread = new AtomicReference<>();
2009	>	final Runnable setThread = () -> thread.set(Thread.currentThread());
2010	>
2011	>	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2012	>	try {
2013	>	p.execute(setThread);
2014	>	shouldThrow();
2015	>	} catch (RejectedExecutionException success) {}
2016	>	assertNull(thread.get());
2017	>
2018	>	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2019	>	p.execute(setThread);
2020	>	assertNull(thread.get());
2021	>
2022	>	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2023	>	p.execute(setThread);
2024	>	if (p.isShutdown())
2025	>	assertNull(thread.get());
2026	>	else
2027	>	assertSame(Thread.currentThread(), thread.get());
2028	>
2029	>	setRejectedExecutionHandler(p, savedHandler);
2030	>
2031	>	// check that pool was not perturbed by handlers
2032	>	assertEquals(savedTaskCount, p.getTaskCount());
2033	>	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2034	>	assertEquals(savedQueueSize, p.getQueue().size());
2035	>	}
2036	>
2037	>	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2038	>	assertEquals(x, y);
2039	>	assertEquals(y, x);
2040	>	assertEquals(x.isEmpty(), y.isEmpty());
2041	>	assertEquals(x.size(), y.size());
2042	>	if (x instanceof List) {
2043	>	assertEquals(x.toString(), y.toString());
2044	>	}
2045	>	if (x instanceof List || x instanceof Set) {
2046	>	assertEquals(x.hashCode(), y.hashCode());
2047	>	}
2048	>	if (x instanceof List || x instanceof Deque) {
2049	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2050	>	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2051	>	y.toArray(new Object[0])));
2052	>	}
2053	>	}
2054	>
2055	>	/**
2056	>	* A weaker form of assertCollectionsEquals which does not insist
2057	>	* that the two collections satisfy Object#equals(Object), since
2058	>	* they may use identity semantics as Deques do.
2059	>	*/
2060	>	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2061	>	if (x instanceof List || x instanceof Set)
2062	>	assertCollectionsEquals(x, y);
2063	>	else {
2064	>	assertEquals(x.isEmpty(), y.isEmpty());
2065	>	assertEquals(x.size(), y.size());
2066	>	assertEquals(new HashSet(x), new HashSet(y));
2067	>	if (x instanceof Deque) {
2068	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2069	>	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2070	>	y.toArray(new Object[0])));
2071	>	}
2072	>	}
2073	>	}
2074		}

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