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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.62 by jsr166, Mon Oct 11 05:40:41 2010 UTC vs.
Revision 1.270 by jsr166, Sun Sep 29 20:18:35 2019 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
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.*;
11	<	import java.util.PropertyPermission;
12	<	import java.util.concurrent.*;
13	<	import java.util.concurrent.atomic.AtomicReference;
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.LockInfo;
53	+	import java.lang.management.ThreadInfo;
54	+	import java.lang.management.ThreadMXBean;
55	+	import java.lang.reflect.Constructor;
56	+	import java.lang.reflect.Method;
57	+	import java.lang.reflect.Modifier;
58		import java.security.CodeSource;
59		import java.security.Permission;
60		import java.security.PermissionCollection;
#	Line 18 | Line 62 | import java.security.Permissions;
62		import java.security.Policy;
63		import java.security.ProtectionDomain;
64		import java.security.SecurityPermission;
65	+	import java.util.ArrayList;
66	+	import java.util.Arrays;
67	+	import java.util.Collection;
68	+	import java.util.Collections;
69	+	import java.util.Date;
70	+	import java.util.Deque;
71	+	import java.util.Enumeration;
72	+	import java.util.HashSet;
73	+	import java.util.Iterator;
74	+	import java.util.List;
75	+	import java.util.NoSuchElementException;
76	+	import java.util.PropertyPermission;
77	+	import java.util.Set;
78	+	import java.util.concurrent.BlockingQueue;
79	+	import java.util.concurrent.Callable;
80	+	import java.util.concurrent.CountDownLatch;
81	+	import java.util.concurrent.CyclicBarrier;
82	+	import java.util.concurrent.ExecutionException;
83	+	import java.util.concurrent.Executor;
84	+	import java.util.concurrent.Executors;
85	+	import java.util.concurrent.ExecutorService;
86	+	import java.util.concurrent.ForkJoinPool;
87	+	import java.util.concurrent.Future;
88	+	import java.util.concurrent.FutureTask;
89	+	import java.util.concurrent.RecursiveAction;
90	+	import java.util.concurrent.RecursiveTask;
91	+	import java.util.concurrent.RejectedExecutionException;
92	+	import java.util.concurrent.RejectedExecutionHandler;
93	+	import java.util.concurrent.Semaphore;
94	+	import java.util.concurrent.ScheduledExecutorService;
95	+	import java.util.concurrent.ScheduledFuture;
96	+	import java.util.concurrent.SynchronousQueue;
97	+	import java.util.concurrent.ThreadFactory;
98	+	import java.util.concurrent.ThreadLocalRandom;
99	+	import java.util.concurrent.ThreadPoolExecutor;
100	+	import java.util.concurrent.TimeUnit;
101	+	import java.util.concurrent.TimeoutException;
102	+	import java.util.concurrent.atomic.AtomicBoolean;
103	+	import java.util.concurrent.atomic.AtomicReference;
104	+	import java.util.regex.Pattern;
105	+
106	+	import junit.framework.Test;
107	+	import junit.framework.TestCase;
108	+	import junit.framework.TestResult;
109	+	import junit.framework.TestSuite;
110
111		/**
112		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 29 | Line 118 | import java.security.SecurityPermission;
118		*
119		* <ol>
120		*
121	<	* <li> All assertions in code running in generated threads must use
122	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
123	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
124	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
125	<	* particularly recommended) for other code to use these forms too.
126	<	* Only the most typically used JUnit assertion methods are defined
127	<	* this way, but enough to live with.</li>
121	>	* <li>All code not running in the main test thread (manually spawned threads
122	>	* or the common fork join pool) must be checked for failure (and completion!).
123	>	* Mechanisms that can be used to ensure this are:
124	>	*   <ol>
125	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
126	>	*    that the task completed normally, which is checked before returning from
127	>	*    the test method in the main thread.
128	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
129	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
130	>	*    Only the most typically used JUnit assertion methods are defined
131	>	*    this way, but enough to live with.
132	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
133	>	*    or {@link #threadRecordFailure}.
134	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
135	>	*   </ol>
136		*
137	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
137	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
138		* to invoke {@code super.setUp} and {@code super.tearDown} within
139		* them. These methods are used to clear and check for thread
140	<	* assertion failures.</li>
140	>	* assertion failures.
141		*
142		* <li>All delays and timeouts must use one of the constants {@code
143		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 148 | import java.security.SecurityPermission;
148		* is always discriminable as larger than SHORT and smaller than
149		* MEDIUM.  And so on. These constants are set to conservative values,
150		* but even so, if there is ever any doubt, they can all be increased
151	<	* in one spot to rerun tests on slower platforms.</li>
151	>	* in one spot to rerun tests on slower platforms.
152		*
153	<	* <li> All threads generated must be joined inside each test case
153	>	* <li>All threads generated must be joined inside each test case
154		* method (or {@code fail} to do so) before returning from the
155		* method. The {@code joinPool} method can be used to do this when
156	<	* using Executors.</li>
156	>	* using Executors.
157		*
158		* </ol>
159		*
160	<	* <p> <b>Other notes</b>
160	>	* <p><b>Other notes</b>
161		* <ul>
162		*
163	<	* <li> Usually, there is one testcase method per JSR166 method
163	>	* <li>Usually, there is one testcase method per JSR166 method
164		* covering "normal" operation, and then as many exception-testing
165		* methods as there are exceptions the method can throw. Sometimes
166		* there are multiple tests per JSR166 method when the different
167		* "normal" behaviors differ significantly. And sometimes testcases
168	<	* cover multiple methods when they cannot be tested in
72	<	* isolation.</li>
168	>	* cover multiple methods when they cannot be tested in isolation.
169		*
170	<	* <li> The documentation style for testcases is to provide as javadoc
170	>	* <li>The documentation style for testcases is to provide as javadoc
171		* a simple sentence or two describing the property that the testcase
172		* method purports to test. The javadocs do not say anything about how
173	<	* the property is tested. To find out, read the code.</li>
173	>	* the property is tested. To find out, read the code.
174		*
175	<	* <li> These tests are "conformance tests", and do not attempt to
175	>	* <li>These tests are "conformance tests", and do not attempt to
176		* test throughput, latency, scalability or other performance factors
177		* (see the separate "jtreg" tests for a set intended to check these
178		* for the most central aspects of functionality.) So, most tests use
179		* the smallest sensible numbers of threads, collection sizes, etc
180	<	* needed to check basic conformance.</li>
180	>	* needed to check basic conformance.
181		*
182		* <li>The test classes currently do not declare inclusion in
183		* any particular package to simplify things for people integrating
184	<	* them in TCK test suites.</li>
184	>	* them in TCK test suites.
185		*
186	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
187	<	* runs all JSR166 unit tests.</li>
186	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
187	>	* runs all JSR166 unit tests.
188		*
189		* </ul>
190		*/
#	Line 100 | Line 196 | public class JSR166TestCase extends Test
196		Boolean.getBoolean("jsr166.expensiveTests");
197
198		/**
199	+	* If true, also run tests that are not part of the official tck
200	+	* because they test unspecified implementation details.
201	+	*/
202	+	protected static final boolean testImplementationDetails =
203	+	Boolean.getBoolean("jsr166.testImplementationDetails");
204	+
205	+	/**
206		* If true, report on stdout all "slow" tests, that is, ones that
207		* take more than profileThreshold milliseconds to execute.
208		*/
#	Line 113 | Line 216 | public class JSR166TestCase extends Test
216		private static final long profileThreshold =
217		Long.getLong("jsr166.profileThreshold", 100);
218
219	+	/**
220	+	* The number of repetitions per test (for tickling rare bugs).
221	+	*/
222	+	private static final int runsPerTest =
223	+	Integer.getInteger("jsr166.runsPerTest", 1);
224	+
225	+	/**
226	+	* The number of repetitions of the test suite (for finding leaks?).
227	+	*/
228	+	private static final int suiteRuns =
229	+	Integer.getInteger("jsr166.suiteRuns", 1);
230	+
231	+	/**
232	+	* Returns the value of the system property, or NaN if not defined.
233	+	*/
234	+	private static float systemPropertyValue(String name) {
235	+	String floatString = System.getProperty(name);
236	+	if (floatString == null)
237	+	return Float.NaN;
238	+	try {
239	+	return Float.parseFloat(floatString);
240	+	} catch (NumberFormatException ex) {
241	+	throw new IllegalArgumentException(
242	+	String.format("Bad float value in system property %s=%s",
243	+	name, floatString));
244	+	}
245	+	}
246	+
247	+	private static final ThreadMXBean THREAD_MXBEAN
248	+	= ManagementFactory.getThreadMXBean();
249	+
250	+	/**
251	+	* The scaling factor to apply to standard delays used in tests.
252	+	* May be initialized from any of:
253	+	* - the "jsr166.delay.factor" system property
254	+	* - the "test.timeout.factor" system property (as used by jtreg)
255	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
256	+	* - hard-coded fuzz factor when using a known slowpoke VM
257	+	*/
258	+	private static final float delayFactor = delayFactor();
259	+
260	+	private static float delayFactor() {
261	+	float x;
262	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
263	+	return x;
264	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
265	+	return x;
266	+	String prop = System.getProperty("java.vm.version");
267	+	if (prop != null && prop.matches(".*debug.*"))
268	+	return 4.0f; // How much slower is fastdebug than product?!
269	+	return 1.0f;
270	+	}
271	+
272	+	public JSR166TestCase() { super(); }
273	+	public JSR166TestCase(String name) { super(name); }
274	+
275	+	/**
276	+	* A filter for tests to run, matching strings of the form
277	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
278	+	* Usefully combined with jsr166.runsPerTest.
279	+	*/
280	+	private static final Pattern methodFilter = methodFilter();
281	+
282	+	private static Pattern methodFilter() {
283	+	String regex = System.getProperty("jsr166.methodFilter");
284	+	return (regex == null) ? null : Pattern.compile(regex);
285	+	}
286	+
287	+	// Instrumentation to debug very rare, but very annoying hung test runs.
288	+	static volatile TestCase currentTestCase;
289	+	// static volatile int currentRun = 0;
290	+	static {
291	+	Runnable wedgedTestDetector = new Runnable() { public void run() {
292	+	// Avoid spurious reports with enormous runsPerTest.
293	+	// A single test case run should never take more than 1 second.
294	+	// But let's cap it at the high end too ...
295	+	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
296	+	* Math.max((int) delayFactor, 1);
297	+	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
298	+	for (TestCase lastTestCase = currentTestCase;;) {
299	+	try { MINUTES.sleep(timeoutMinutes); }
300	+	catch (InterruptedException unexpected) { break; }
301	+	if (lastTestCase == currentTestCase) {
302	+	System.err.printf(
303	+	"Looks like we're stuck running test: %s%n",
304	+	lastTestCase);
305	+	//                     System.err.printf(
306	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
307	+	//                         lastTestCase, currentRun, runsPerTest);
308	+	//                     System.err.println("availableProcessors=" +
309	+	//                         Runtime.getRuntime().availableProcessors());
310	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
311	+	dumpTestThreads();
312	+	// one stack dump is probably enough; more would be spam
313	+	break;
314	+	}
315	+	lastTestCase = currentTestCase;
316	+	}}};
317	+	Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
318	+	thread.setDaemon(true);
319	+	thread.start();
320	+	}
321	+
322	+	//     public static String cpuModel() {
323	+	//         try {
324	+	//             java.util.regex.Matcher matcher
325	+	//               = Pattern.compile("model name\\s*: (.*)")
326	+	//                 .matcher(new String(
327	+	//                     java.nio.file.Files.readAllBytes(
328	+	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
329	+	//             matcher.find();
330	+	//             return matcher.group(1);
331	+	//         } catch (Exception ex) { return null; }
332	+	//     }
333	+
334	+	public void runBare() throws Throwable {
335	+	currentTestCase = this;
336	+	if (methodFilter == null
337	+	|| methodFilter.matcher(toString()).find())
338	+	super.runBare();
339	+	}
340	+
341		protected void runTest() throws Throwable {
342	<	if (profileTests)
343	<	runTestProfiled();
344	<	else
345	<	super.runTest();
342	>	for (int i = 0; i < runsPerTest; i++) {
343	>	// currentRun = i;
344	>	if (profileTests)
345	>	runTestProfiled();
346	>	else
347	>	super.runTest();
348	>	}
349		}
350
351		protected void runTestProfiled() throws Throwable {
352	<	long t0 = System.nanoTime();
353	<	try {
352	>	for (int i = 0; i < 2; i++) {
353	>	long startTime = System.nanoTime();
354		super.runTest();
355	<	} finally {
356	<	long elapsedMillis =
357	<	(System.nanoTime() - t0) / (1000L * 1000L);
358	<	if (elapsedMillis >= profileThreshold)
359	<	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
355	>	long elapsedMillis = millisElapsedSince(startTime);
356	>	if (elapsedMillis < profileThreshold)
357	>	break;
358	>	// Never report first run of any test; treat it as a
359	>	// warmup run, notably to trigger all needed classloading,
360	>	if (i > 0)
361	>	System.out.printf("%s: %d%n", toString(), elapsedMillis);
362		}
363		}
364	<
364	>
365		/**
366	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
366	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
367		*/
368		public static void main(String[] args) {
369	+	main(suite(), args);
370	+	}
371	+
372	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
373	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
374	+	long runTime;
375	+	public void startTest(Test test) {}
376	+	protected void printHeader(long runTime) {
377	+	this.runTime = runTime; // defer printing for later
378	+	}
379	+	protected void printFooter(TestResult result) {
380	+	if (result.wasSuccessful()) {
381	+	getWriter().println("OK (" + result.runCount() + " tests)"
382	+	+ "  Time: " + elapsedTimeAsString(runTime));
383	+	} else {
384	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
385	+	super.printFooter(result);
386	+	}
387	+	}
388	+	}
389	+
390	+	/**
391	+	* Returns a TestRunner that doesn't bother with unnecessary
392	+	* fluff, like printing a "." for each test case.
393	+	*/
394	+	static junit.textui.TestRunner newPithyTestRunner() {
395	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
396	+	runner.setPrinter(new PithyResultPrinter(System.out));
397	+	return runner;
398	+	}
399	+
400	+	/**
401	+	* Runs all unit tests in the given test suite.
402	+	* Actual behavior influenced by jsr166.* system properties.
403	+	*/
404	+	static void main(Test suite, String[] args) {
405		if (useSecurityManager) {
406		System.err.println("Setting a permissive security manager");
407		Policy.setPolicy(permissivePolicy());
408		System.setSecurityManager(new SecurityManager());
409		}
410	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
411	<
412	<	Test s = suite();
413	<	for (int i = 0; i < iters; ++i) {
148	<	junit.textui.TestRunner.run(s);
410	>	for (int i = 0; i < suiteRuns; i++) {
411	>	TestResult result = newPithyTestRunner().doRun(suite);
412	>	if (!result.wasSuccessful())
413	>	System.exit(1);
414		System.gc();
415		System.runFinalization();
416		}
152	–	System.exit(0);
417		}
418
419		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 165 | Line 429 | public class JSR166TestCase extends Test
429		return suite;
430		}
431
432	+	public static void addNamedTestClasses(TestSuite suite,
433	+	String... testClassNames) {
434	+	for (String testClassName : testClassNames) {
435	+	try {
436	+	Class<?> testClass = Class.forName(testClassName);
437	+	Method m = testClass.getDeclaredMethod("suite");
438	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
439	+	} catch (ReflectiveOperationException e) {
440	+	throw new AssertionError("Missing test class", e);
441	+	}
442	+	}
443	+	}
444	+
445	+	public static final double JAVA_CLASS_VERSION;
446	+	public static final String JAVA_SPECIFICATION_VERSION;
447	+	static {
448	+	try {
449	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
450	+	new java.security.PrivilegedAction<Double>() {
451	+	public Double run() {
452	+	return Double.valueOf(System.getProperty("java.class.version"));}});
453	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
454	+	new java.security.PrivilegedAction<String>() {
455	+	public String run() {
456	+	return System.getProperty("java.specification.version");}});
457	+	} catch (Throwable t) {
458	+	throw new Error(t);
459	+	}
460	+	}
461	+
462	+	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
463	+	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
464	+	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
465	+	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
466	+	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
467	+	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
468	+	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
469	+	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
470	+	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
471	+	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
472	+	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
473	+	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
474	+
475		/**
476		* Collects all JSR166 unit tests as one suite.
477		*/
478		public static Test suite() {
479	<	return newTestSuite(
479	>	// Java7+ test classes
480	>	TestSuite suite = newTestSuite(
481		ForkJoinPoolTest.suite(),
482		ForkJoinTaskTest.suite(),
483		RecursiveActionTest.suite(),
#	Line 183 | Line 491 | public class JSR166TestCase extends Test
491		AbstractQueuedLongSynchronizerTest.suite(),
492		ArrayBlockingQueueTest.suite(),
493		ArrayDequeTest.suite(),
494	+	ArrayListTest.suite(),
495		AtomicBooleanTest.suite(),
496		AtomicIntegerArrayTest.suite(),
497		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 205 | Line 514 | public class JSR166TestCase extends Test
514		CopyOnWriteArrayListTest.suite(),
515		CopyOnWriteArraySetTest.suite(),
516		CountDownLatchTest.suite(),
517	+	CountedCompleterTest.suite(),
518		CyclicBarrierTest.suite(),
519		DelayQueueTest.suite(),
520		EntryTest.suite(),
#	Line 212 | Line 522 | public class JSR166TestCase extends Test
522		ExecutorsTest.suite(),
523		ExecutorCompletionServiceTest.suite(),
524		FutureTaskTest.suite(),
525	+	HashtableTest.suite(),
526		LinkedBlockingDequeTest.suite(),
527		LinkedBlockingQueueTest.suite(),
528		LinkedListTest.suite(),
#	Line 233 | Line 544 | public class JSR166TestCase extends Test
544		TreeMapTest.suite(),
545		TreeSetTest.suite(),
546		TreeSubMapTest.suite(),
547	<	TreeSubSetTest.suite());
547	>	TreeSubSetTest.suite(),
548	>	VectorTest.suite());
549	>
550	>	// Java8+ test classes
551	>	if (atLeastJava8()) {
552	>	String[] java8TestClassNames = {
553	>	"ArrayDeque8Test",
554	>	"Atomic8Test",
555	>	"CompletableFutureTest",
556	>	"ConcurrentHashMap8Test",
557	>	"CountedCompleter8Test",
558	>	"DoubleAccumulatorTest",
559	>	"DoubleAdderTest",
560	>	"ForkJoinPool8Test",
561	>	"ForkJoinTask8Test",
562	>	"HashMapTest",
563	>	"LinkedBlockingDeque8Test",
564	>	"LinkedBlockingQueue8Test",
565	>	"LinkedHashMapTest",
566	>	"LongAccumulatorTest",
567	>	"LongAdderTest",
568	>	"SplittableRandomTest",
569	>	"StampedLockTest",
570	>	"SubmissionPublisherTest",
571	>	"ThreadLocalRandom8Test",
572	>	"TimeUnit8Test",
573	>	};
574	>	addNamedTestClasses(suite, java8TestClassNames);
575	>	}
576	>
577	>	// Java9+ test classes
578	>	if (atLeastJava9()) {
579	>	String[] java9TestClassNames = {
580	>	"AtomicBoolean9Test",
581	>	"AtomicInteger9Test",
582	>	"AtomicIntegerArray9Test",
583	>	"AtomicLong9Test",
584	>	"AtomicLongArray9Test",
585	>	"AtomicReference9Test",
586	>	"AtomicReferenceArray9Test",
587	>	"ExecutorCompletionService9Test",
588	>	"ForkJoinPool9Test",
589	>	};
590	>	addNamedTestClasses(suite, java9TestClassNames);
591	>	}
592	>
593	>	return suite;
594		}
595
596	+	/** Returns list of junit-style test method names in given class. */
597	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
598	+	Method[] methods = testClass.getDeclaredMethods();
599	+	ArrayList<String> names = new ArrayList<>(methods.length);
600	+	for (Method method : methods) {
601	+	if (method.getName().startsWith("test")
602	+	&& Modifier.isPublic(method.getModifiers())
603	+	// method.getParameterCount() requires jdk8+
604	+	&& method.getParameterTypes().length == 0) {
605	+	names.add(method.getName());
606	+	}
607	+	}
608	+	return names;
609	+	}
610	+
611	+	/**
612	+	* Returns junit-style testSuite for the given test class, but
613	+	* parameterized by passing extra data to each test.
614	+	*/
615	+	public static <ExtraData> Test parameterizedTestSuite
616	+	(Class<? extends JSR166TestCase> testClass,
617	+	Class<ExtraData> dataClass,
618	+	ExtraData data) {
619	+	try {
620	+	TestSuite suite = new TestSuite();
621	+	Constructor c =
622	+	testClass.getDeclaredConstructor(dataClass, String.class);
623	+	for (String methodName : testMethodNames(testClass))
624	+	suite.addTest((Test) c.newInstance(data, methodName));
625	+	return suite;
626	+	} catch (ReflectiveOperationException e) {
627	+	throw new AssertionError(e);
628	+	}
629	+	}
630	+
631	+	/**
632	+	* Returns junit-style testSuite for the jdk8 extension of the
633	+	* given test class, but parameterized by passing extra data to
634	+	* each test.  Uses reflection to allow compilation in jdk7.
635	+	*/
636	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
637	+	(Class<? extends JSR166TestCase> testClass,
638	+	Class<ExtraData> dataClass,
639	+	ExtraData data) {
640	+	if (atLeastJava8()) {
641	+	String name = testClass.getName();
642	+	String name8 = name.replaceAll("Test$", "8Test");
643	+	if (name.equals(name8)) throw new AssertionError(name);
644	+	try {
645	+	return (Test)
646	+	Class.forName(name8)
647	+	.getMethod("testSuite", dataClass)
648	+	.invoke(null, data);
649	+	} catch (ReflectiveOperationException e) {
650	+	throw new AssertionError(e);
651	+	}
652	+	} else {
653	+	return new TestSuite();
654	+	}
655	+	}
656	+
657	+	// Delays for timing-dependent tests, in milliseconds.
658
659		public static long SHORT_DELAY_MS;
660		public static long SMALL_DELAY_MS;
661		public static long MEDIUM_DELAY_MS;
662		public static long LONG_DELAY_MS;
663
664	+	/**
665	+	* A delay significantly longer than LONG_DELAY_MS.
666	+	* Use this in a thread that is waited for via awaitTermination(Thread).
667	+	*/
668	+	public static long LONGER_DELAY_MS;
669	+
670	+	private static final long RANDOM_TIMEOUT;
671	+	private static final long RANDOM_EXPIRED_TIMEOUT;
672	+	private static final TimeUnit RANDOM_TIMEUNIT;
673	+	static {
674	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
675	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
676	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
677	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
678	+	TimeUnit[] timeUnits = TimeUnit.values();
679	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
680	+	}
681
682		/**
683	<	* Returns the shortest timed delay. This could
248	<	* be reimplemented to use for example a Property.
683	>	* Returns a timeout for use when any value at all will do.
684		*/
685	<	protected long getShortDelay() {
686	<	return 50;
685	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
686	>
687	>	/**
688	>	* Returns a timeout that means "no waiting", i.e. not positive.
689	>	*/
690	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
691	>
692	>	/**
693	>	* Returns a random non-null TimeUnit.
694	>	*/
695	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
696	>
697	>	/**
698	>	* Returns a random boolean; a "coin flip".
699	>	*/
700	>	static boolean randomBoolean() {
701	>	return ThreadLocalRandom.current().nextBoolean();
702		}
703
704	+	/**
705	+	* Returns a random element from given choices.
706	+	*/
707	+	<T> T chooseRandomly(List<T> choices) {
708	+	return choices.get(ThreadLocalRandom.current().nextInt(choices.size()));
709	+	}
710	+
711	+	/**
712	+	* Returns a random element from given choices.
713	+	*/
714	+	<T> T chooseRandomly(T... choices) {
715	+	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
716	+	}
717	+
718	+	/**
719	+	* Returns the shortest timed delay. This can be scaled up for
720	+	* slow machines using the jsr166.delay.factor system property,
721	+	* or via jtreg's -timeoutFactor: flag.
722	+	* http://openjdk.java.net/jtreg/command-help.html
723	+	*/
724	+	protected long getShortDelay() {
725	+	return (long) (50 * delayFactor);
726	+	}
727
728		/**
729		* Sets delays as multiples of SHORT_DELAY.
#	Line 259 | Line 732 | public class JSR166TestCase extends Test
732		SHORT_DELAY_MS = getShortDelay();
733		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
734		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
735	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
735	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
736	>	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
737	>	}
738	>
739	>	private static final long TIMEOUT_DELAY_MS
740	>	= (long) (12.0 * Math.cbrt(delayFactor));
741	>
742	>	/**
743	>	* Returns a timeout in milliseconds to be used in tests that verify
744	>	* that operations block or time out.  We want this to be longer
745	>	* than the OS scheduling quantum, but not too long, so don't scale
746	>	* linearly with delayFactor; we use "crazy" cube root instead.
747	>	*/
748	>	static long timeoutMillis() {
749	>	return TIMEOUT_DELAY_MS;
750	>	}
751	>
752	>	/**
753	>	* Returns a new Date instance representing a time at least
754	>	* delayMillis milliseconds in the future.
755	>	*/
756	>	Date delayedDate(long delayMillis) {
757	>	// Add 1 because currentTimeMillis is known to round into the past.
758	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
759		}
760
761		/**
762		* The first exception encountered if any threadAssertXXX method fails.
763		*/
764		private final AtomicReference<Throwable> threadFailure
765	<	= new AtomicReference<Throwable>(null);
765	>	= new AtomicReference<>(null);
766
767		/**
768		* Records an exception so that it can be rethrown later in the test
#	Line 275 | Line 771 | public class JSR166TestCase extends Test
771		* the same test have no effect.
772		*/
773		public void threadRecordFailure(Throwable t) {
774	<	threadFailure.compareAndSet(null, t);
774	>	System.err.println(t);
775	>	if (threadFailure.compareAndSet(null, t))
776	>	dumpTestThreads();
777		}
778
779		public void setUp() {
780		setDelays();
781		}
782
783	+	void tearDownFail(String format, Object... args) {
784	+	String msg = toString() + ": " + String.format(format, args);
785	+	System.err.println(msg);
786	+	dumpTestThreads();
787	+	throw new AssertionError(msg);
788	+	}
789	+
790		/**
791	+	* Extra checks that get done for all test cases.
792	+	*
793		* Triggers test case failure if any thread assertions have failed,
794		* by rethrowing, in the test harness thread, any exception recorded
795		* earlier by threadRecordFailure.
796	+	*
797	+	* Triggers test case failure if interrupt status is set in the main thread.
798		*/
799		public void tearDown() throws Exception {
800	<	Throwable t = threadFailure.get();
800	>	Throwable t = threadFailure.getAndSet(null);
801		if (t != null) {
802		if (t instanceof Error)
803		throw (Error) t;
#	Line 296 | Line 805 | public class JSR166TestCase extends Test
805		throw (RuntimeException) t;
806		else if (t instanceof Exception)
807		throw (Exception) t;
808	<	else {
809	<	AssertionFailedError afe =
810	<	new AssertionFailedError(t.toString());
811	<	afe.initCause(t);
812	<	throw afe;
808	>	else
809	>	throw new AssertionError(t.toString(), t);
810	>	}
811	>
812	>	if (Thread.interrupted())
813	>	tearDownFail("interrupt status set in main thread");
814	>
815	>	checkForkJoinPoolThreadLeaks();
816	>	}
817	>
818	>	/**
819	>	* Finds missing PoolCleaners
820	>	*/
821	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
822	>	Thread[] survivors = new Thread[7];
823	>	int count = Thread.enumerate(survivors);
824	>	for (int i = 0; i < count; i++) {
825	>	Thread thread = survivors[i];
826	>	String name = thread.getName();
827	>	if (name.startsWith("ForkJoinPool-")) {
828	>	// give thread some time to terminate
829	>	thread.join(LONG_DELAY_MS);
830	>	if (thread.isAlive())
831	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
832	>	thread);
833		}
834		}
835	+
836	+	if (!ForkJoinPool.commonPool()
837	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
838	+	tearDownFail("ForkJoin common pool thread stuck");
839		}
840
841		/**
842		* Just like fail(reason), but additionally recording (using
843	<	* threadRecordFailure) any AssertionFailedError thrown, so that
844	<	* the current testcase will fail.
843	>	* threadRecordFailure) any AssertionError thrown, so that the
844	>	* current testcase will fail.
845		*/
846		public void threadFail(String reason) {
847		try {
848		fail(reason);
849	<	} catch (AssertionFailedError t) {
850	<	threadRecordFailure(t);
851	<	fail(reason);
849	>	} catch (AssertionError fail) {
850	>	threadRecordFailure(fail);
851	>	throw fail;
852		}
853		}
854
855		/**
856		* Just like assertTrue(b), but additionally recording (using
857	<	* threadRecordFailure) any AssertionFailedError thrown, so that
858	<	* the current testcase will fail.
857	>	* threadRecordFailure) any AssertionError thrown, so that the
858	>	* current testcase will fail.
859		*/
860		public void threadAssertTrue(boolean b) {
861		try {
862		assertTrue(b);
863	<	} catch (AssertionFailedError t) {
864	<	threadRecordFailure(t);
865	<	throw t;
863	>	} catch (AssertionError fail) {
864	>	threadRecordFailure(fail);
865	>	throw fail;
866		}
867		}
868
869		/**
870		* Just like assertFalse(b), but additionally recording (using
871	<	* threadRecordFailure) any AssertionFailedError thrown, so that
872	<	* the current testcase will fail.
871	>	* threadRecordFailure) any AssertionError thrown, so that the
872	>	* current testcase will fail.
873		*/
874		public void threadAssertFalse(boolean b) {
875		try {
876		assertFalse(b);
877	<	} catch (AssertionFailedError t) {
878	<	threadRecordFailure(t);
879	<	throw t;
877	>	} catch (AssertionError fail) {
878	>	threadRecordFailure(fail);
879	>	throw fail;
880		}
881		}
882
883		/**
884		* Just like assertNull(x), but additionally recording (using
885	<	* threadRecordFailure) any AssertionFailedError thrown, so that
886	<	* the current testcase will fail.
885	>	* threadRecordFailure) any AssertionError thrown, so that the
886	>	* current testcase will fail.
887		*/
888		public void threadAssertNull(Object x) {
889		try {
890		assertNull(x);
891	<	} catch (AssertionFailedError t) {
892	<	threadRecordFailure(t);
893	<	throw t;
891	>	} catch (AssertionError fail) {
892	>	threadRecordFailure(fail);
893	>	throw fail;
894		}
895		}
896
897		/**
898		* Just like assertEquals(x, y), but additionally recording (using
899	<	* threadRecordFailure) any AssertionFailedError thrown, so that
900	<	* the current testcase will fail.
899	>	* threadRecordFailure) any AssertionError thrown, so that the
900	>	* current testcase will fail.
901		*/
902		public void threadAssertEquals(long x, long y) {
903		try {
904		assertEquals(x, y);
905	<	} catch (AssertionFailedError t) {
906	<	threadRecordFailure(t);
907	<	throw t;
905	>	} catch (AssertionError fail) {
906	>	threadRecordFailure(fail);
907	>	throw fail;
908		}
909		}
910
911		/**
912		* Just like assertEquals(x, y), but additionally recording (using
913	<	* threadRecordFailure) any AssertionFailedError thrown, so that
914	<	* the current testcase will fail.
913	>	* threadRecordFailure) any AssertionError thrown, so that the
914	>	* current testcase will fail.
915		*/
916		public void threadAssertEquals(Object x, Object y) {
917		try {
918		assertEquals(x, y);
919	<	} catch (AssertionFailedError t) {
920	<	threadRecordFailure(t);
921	<	throw t;
922	<	} catch (Throwable t) {
923	<	threadUnexpectedException(t);
919	>	} catch (AssertionError fail) {
920	>	threadRecordFailure(fail);
921	>	throw fail;
922	>	} catch (Throwable fail) {
923	>	threadUnexpectedException(fail);
924		}
925		}
926
927		/**
928		* Just like assertSame(x, y), but additionally recording (using
929	<	* threadRecordFailure) any AssertionFailedError thrown, so that
930	<	* the current testcase will fail.
929	>	* threadRecordFailure) any AssertionError thrown, so that the
930	>	* current testcase will fail.
931		*/
932		public void threadAssertSame(Object x, Object y) {
933		try {
934		assertSame(x, y);
935	<	} catch (AssertionFailedError t) {
936	<	threadRecordFailure(t);
937	<	throw t;
935	>	} catch (AssertionError fail) {
936	>	threadRecordFailure(fail);
937	>	throw fail;
938		}
939		}
940
#	Line 421 | Line 954 | public class JSR166TestCase extends Test
954
955		/**
956		* Records the given exception using {@link #threadRecordFailure},
957	<	* then rethrows the exception, wrapping it in an
958	<	* AssertionFailedError if necessary.
957	>	* then rethrows the exception, wrapping it in an AssertionError
958	>	* if necessary.
959		*/
960		public void threadUnexpectedException(Throwable t) {
961		threadRecordFailure(t);
#	Line 431 | Line 964 | public class JSR166TestCase extends Test
964		throw (RuntimeException) t;
965		else if (t instanceof Error)
966		throw (Error) t;
967	<	else {
968	<	AssertionFailedError afe =
969	<	new AssertionFailedError("unexpected exception: " + t);
970	<	t.initCause(t);
971	<	throw afe;
967	>	else
968	>	throw new AssertionError("unexpected exception: " + t, t);
969	>	}
970	>
971	>	/**
972	>	* Delays, via Thread.sleep, for the given millisecond delay, but
973	>	* if the sleep is shorter than specified, may re-sleep or yield
974	>	* until time elapses.  Ensures that the given time, as measured
975	>	* by System.nanoTime(), has elapsed.
976	>	*/
977	>	static void delay(long millis) throws InterruptedException {
978	>	long nanos = millis * (1000 * 1000);
979	>	final long wakeupTime = System.nanoTime() + nanos;
980	>	do {
981	>	if (millis > 0L)
982	>	Thread.sleep(millis);
983	>	else // too short to sleep
984	>	Thread.yield();
985	>	nanos = wakeupTime - System.nanoTime();
986	>	millis = nanos / (1000 * 1000);
987	>	} while (nanos >= 0L);
988	>	}
989	>
990	>	/**
991	>	* Allows use of try-with-resources with per-test thread pools.
992	>	*/
993	>	class PoolCleaner implements AutoCloseable {
994	>	private final ExecutorService pool;
995	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
996	>	public void close() { joinPool(pool); }
997	>	}
998	>
999	>	/**
1000	>	* An extension of PoolCleaner that has an action to release the pool.
1001	>	*/
1002	>	class PoolCleanerWithReleaser extends PoolCleaner {
1003	>	private final Runnable releaser;
1004	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
1005	>	super(pool);
1006	>	this.releaser = releaser;
1007	>	}
1008	>	public void close() {
1009	>	try {
1010	>	releaser.run();
1011	>	} finally {
1012	>	super.close();
1013	>	}
1014		}
1015		}
1016
1017	+	PoolCleaner cleaner(ExecutorService pool) {
1018	+	return new PoolCleaner(pool);
1019	+	}
1020	+
1021	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
1022	+	return new PoolCleanerWithReleaser(pool, releaser);
1023	+	}
1024	+
1025	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1026	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
1027	+	}
1028	+
1029	+	Runnable releaser(final CountDownLatch latch) {
1030	+	return new Runnable() { public void run() {
1031	+	do { latch.countDown(); }
1032	+	while (latch.getCount() > 0);
1033	+	}};
1034	+	}
1035	+
1036	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1037	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1038	+	}
1039	+
1040	+	Runnable releaser(final AtomicBoolean flag) {
1041	+	return new Runnable() { public void run() { flag.set(true); }};
1042	+	}
1043	+
1044		/**
1045		* Waits out termination of a thread pool or fails doing so.
1046		*/
1047	<	public void joinPool(ExecutorService exec) {
1047	>	void joinPool(ExecutorService pool) {
1048		try {
1049	<	exec.shutdown();
1050	<	assertTrue("ExecutorService did not terminate in a timely manner",
1051	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
1049	>	pool.shutdown();
1050	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1051	>	try {
1052	>	threadFail("ExecutorService " + pool +
1053	>	" did not terminate in a timely manner");
1054	>	} finally {
1055	>	// last resort, for the benefit of subsequent tests
1056	>	pool.shutdownNow();
1057	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1058	>	}
1059	>	}
1060		} catch (SecurityException ok) {
1061		// Allowed in case test doesn't have privs
1062	<	} catch (InterruptedException ie) {
1063	<	fail("Unexpected InterruptedException");
1062	>	} catch (InterruptedException fail) {
1063	>	threadFail("Unexpected InterruptedException");
1064		}
1065		}
1066
1067	+	/**
1068	+	* Like Runnable, but with the freedom to throw anything.
1069	+	* junit folks had the same idea:
1070	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1071	+	*/
1072	+	interface Action { public void run() throws Throwable; }
1073	+
1074	+	/**
1075	+	* Runs all the given actions in parallel, failing if any fail.
1076	+	* Useful for running multiple variants of tests that are
1077	+	* necessarily individually slow because they must block.
1078	+	*/
1079	+	void testInParallel(Action ... actions) {
1080	+	ExecutorService pool = Executors.newCachedThreadPool();
1081	+	try (PoolCleaner cleaner = cleaner(pool)) {
1082	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1083	+	for (final Action action : actions)
1084	+	futures.add(pool.submit(new CheckedRunnable() {
1085	+	public void realRun() throws Throwable { action.run();}}));
1086	+	for (Future<?> future : futures)
1087	+	try {
1088	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1089	+	} catch (ExecutionException ex) {
1090	+	threadUnexpectedException(ex.getCause());
1091	+	} catch (Exception ex) {
1092	+	threadUnexpectedException(ex);
1093	+	}
1094	+	}
1095	+	}
1096	+
1097	+	/** Returns true if thread info might be useful in a thread dump. */
1098	+	static boolean threadOfInterest(ThreadInfo info) {
1099	+	final String name = info.getThreadName();
1100	+	String lockName;
1101	+	if (name == null)
1102	+	return true;
1103	+	if (name.equals("Signal Dispatcher")
1104	+	|| name.equals("WedgedTestDetector"))
1105	+	return false;
1106	+	if (name.equals("Reference Handler")) {
1107	+	// Reference Handler stacktrace changed in JDK-8156500
1108	+	StackTraceElement[] stackTrace; String methodName;
1109	+	if ((stackTrace = info.getStackTrace()) != null
1110	+	&& stackTrace.length > 0
1111	+	&& (methodName = stackTrace[0].getMethodName()) != null
1112	+	&& methodName.equals("waitForReferencePendingList"))
1113	+	return false;
1114	+	// jdk8 Reference Handler stacktrace
1115	+	if ((lockName = info.getLockName()) != null
1116	+	&& lockName.startsWith("java.lang.ref"))
1117	+	return false;
1118	+	}
1119	+	if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1120	+	&& (lockName = info.getLockName()) != null
1121	+	&& lockName.startsWith("java.lang.ref"))
1122	+	return false;
1123	+	if (name.startsWith("ForkJoinPool.commonPool-worker")
1124	+	&& (lockName = info.getLockName()) != null
1125	+	&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1126	+	return false;
1127	+	return true;
1128	+	}
1129	+
1130	+	/**
1131	+	* A debugging tool to print stack traces of most threads, as jstack does.
1132	+	* Uninteresting threads are filtered out.
1133	+	*/
1134	+	static void dumpTestThreads() {
1135	+	SecurityManager sm = System.getSecurityManager();
1136	+	if (sm != null) {
1137	+	try {
1138	+	System.setSecurityManager(null);
1139	+	} catch (SecurityException giveUp) {
1140	+	return;
1141	+	}
1142	+	}
1143	+
1144	+	System.err.println("------ stacktrace dump start ------");
1145	+	for (ThreadInfo info : THREAD_MXBEAN.dumpAllThreads(true, true))
1146	+	if (threadOfInterest(info))
1147	+	System.err.print(info);
1148	+	System.err.println("------ stacktrace dump end ------");
1149	+
1150	+	if (sm != null) System.setSecurityManager(sm);
1151	+	}
1152	+
1153	+	/**
1154	+	* Checks that thread eventually enters the expected blocked thread state.
1155	+	*/
1156	+	void assertThreadBlocks(Thread thread, Thread.State expected) {
1157	+	// always sleep at least 1 ms, with high probability avoiding
1158	+	// transitory states
1159	+	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1160	+	try { delay(1); }
1161	+	catch (InterruptedException fail) {
1162	+	throw new AssertionError("Unexpected InterruptedException", fail);
1163	+	}
1164	+	Thread.State s = thread.getState();
1165	+	if (s == expected)
1166	+	return;
1167	+	else if (s == Thread.State.TERMINATED)
1168	+	fail("Unexpected thread termination");
1169	+	}
1170	+	fail("timed out waiting for thread to enter thread state " + expected);
1171	+	}
1172	+
1173	+	/**
1174	+	* Returns the thread's blocker's class name, if any, else null.
1175	+	*/
1176	+	String blockerClassName(Thread thread) {
1177	+	ThreadInfo threadInfo; LockInfo lockInfo;
1178	+	if ((threadInfo = THREAD_MXBEAN.getThreadInfo(thread.getId(), 0)) != null
1179	+	&& (lockInfo = threadInfo.getLockInfo()) != null)
1180	+	return lockInfo.getClassName();
1181	+	return null;
1182	+	}
1183	+
1184	+	/**
1185	+	* Checks that future.get times out, with the default timeout of
1186	+	* {@code timeoutMillis()}.
1187	+	*/
1188	+	void assertFutureTimesOut(Future future) {
1189	+	assertFutureTimesOut(future, timeoutMillis());
1190	+	}
1191	+
1192	+	/**
1193	+	* Checks that future.get times out, with the given millisecond timeout.
1194	+	*/
1195	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1196	+	long startTime = System.nanoTime();
1197	+	try {
1198	+	future.get(timeoutMillis, MILLISECONDS);
1199	+	shouldThrow();
1200	+	} catch (TimeoutException success) {
1201	+	} catch (Exception fail) {
1202	+	threadUnexpectedException(fail);
1203	+	} finally { future.cancel(true); }
1204	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1205	+	}
1206
1207		/**
1208		* Fails with message "should throw exception".
#	Line 470 | Line 1219 | public class JSR166TestCase extends Test
1219		}
1220
1221		/**
1222	+	* The maximum number of consecutive spurious wakeups we should
1223	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1224	+	*/
1225	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1226	+
1227	+	/**
1228		* The number of elements to place in collections, arrays, etc.
1229		*/
1230		public static final int SIZE = 20;
#	Line 494 | Line 1249 | public class JSR166TestCase extends Test
1249		public static final Integer m6  = new Integer(-6);
1250		public static final Integer m10 = new Integer(-10);
1251
497	–
1252		/**
1253		* Runs Runnable r with a security policy that permits precisely
1254		* the specified permissions.  If there is no current security
#	Line 506 | Line 1260 | public class JSR166TestCase extends Test
1260		SecurityManager sm = System.getSecurityManager();
1261		if (sm == null) {
1262		r.run();
1263	+	}
1264	+	runWithSecurityManagerWithPermissions(r, permissions);
1265	+	}
1266	+
1267	+	/**
1268	+	* Runs Runnable r with a security policy that permits precisely
1269	+	* the specified permissions.  If there is no current security
1270	+	* manager, a temporary one is set for the duration of the
1271	+	* Runnable.  We require that any security manager permit
1272	+	* getPolicy/setPolicy.
1273	+	*/
1274	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1275	+	Permission... permissions) {
1276	+	SecurityManager sm = System.getSecurityManager();
1277	+	if (sm == null) {
1278		Policy savedPolicy = Policy.getPolicy();
1279		try {
1280		Policy.setPolicy(permissivePolicy());
1281		System.setSecurityManager(new SecurityManager());
1282	<	runWithPermissions(r, permissions);
1282	>	runWithSecurityManagerWithPermissions(r, permissions);
1283		} finally {
1284		System.setSecurityManager(null);
1285		Policy.setPolicy(savedPolicy);
#	Line 558 | Line 1327 | public class JSR166TestCase extends Test
1327		return perms.implies(p);
1328		}
1329		public void refresh() {}
1330	+	public String toString() {
1331	+	List<Permission> ps = new ArrayList<>();
1332	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1333	+	ps.add(e.nextElement());
1334	+	return "AdjustablePolicy with permissions " + ps;
1335	+	}
1336		}
1337
1338		/**
#	Line 581 | Line 1356 | public class JSR166TestCase extends Test
1356
1357		/**
1358		* Sleeps until the given time has elapsed.
1359	<	* Throws AssertionFailedError if interrupted.
1359	>	* Throws AssertionError if interrupted.
1360		*/
1361	<	void sleep(long millis) {
1361	>	static void sleep(long millis) {
1362		try {
1363	<	Thread.sleep(millis);
1364	<	} catch (InterruptedException ie) {
1365	<	AssertionFailedError afe =
1366	<	new AssertionFailedError("Unexpected InterruptedException");
1367	<	afe.initCause(ie);
1368	<	throw afe;
1363	>	delay(millis);
1364	>	} catch (InterruptedException fail) {
1365	>	throw new AssertionError("Unexpected InterruptedException", fail);
1366	>	}
1367	>	}
1368	>
1369	>	/**
1370	>	* Spin-waits up to the specified number of milliseconds for the given
1371	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1372	>	* @param waitingForGodot if non-null, an additional condition to satisfy
1373	>	*/
1374	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1375	>	Callable<Boolean> waitingForGodot) {
1376	>	for (long startTime = 0L;;) {
1377	>	switch (thread.getState()) {
1378	>	default: break;
1379	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1380	>	try {
1381	>	if (waitingForGodot == null || waitingForGodot.call())
1382	>	return;
1383	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1384	>	break;
1385	>	case TERMINATED:
1386	>	fail("Unexpected thread termination");
1387	>	}
1388	>
1389	>	if (startTime == 0L)
1390	>	startTime = System.nanoTime();
1391	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1392	>	assertTrue(thread.isAlive());
1393	>	if (waitingForGodot == null
1394	>	|| thread.getState() == Thread.State.RUNNABLE)
1395	>	fail("timed out waiting for thread to enter wait state");
1396	>	else
1397	>	fail("timed out waiting for condition, thread state="
1398	>	+ thread.getState());
1399	>	}
1400	>	Thread.yield();
1401	>	}
1402	>	}
1403	>
1404	>	/**
1405	>	* Spin-waits up to the specified number of milliseconds for the given
1406	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1407	>	*/
1408	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1409	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1410	>	}
1411	>
1412	>	/**
1413	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1414	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1415	>	*/
1416	>	void waitForThreadToEnterWaitState(Thread thread) {
1417	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1418	>	}
1419	>
1420	>	/**
1421	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1422	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1423	>	* and additionally satisfy the given condition.
1424	>	*/
1425	>	void waitForThreadToEnterWaitState(Thread thread,
1426	>	Callable<Boolean> waitingForGodot) {
1427	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1428	>	}
1429	>
1430	>	/**
1431	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1432	>	* be interrupted.  Clears the interrupt status before returning.
1433	>	*/
1434	>	void awaitInterrupted() {
1435	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1436	>	if (startTime == 0L)
1437	>	startTime = System.nanoTime();
1438	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1439	>	fail("timed out waiting for thread interrupt");
1440	>	Thread.yield();
1441		}
1442		}
1443
1444		/**
1445	<	* Sleeps until the timeout has elapsed, or interrupted.
1446	<	* Does <em>NOT</em> throw InterruptedException.
1445	>	* Returns the number of milliseconds since time given by
1446	>	* startNanoTime, which must have been previously returned from a
1447	>	* call to {@link System#nanoTime()}.
1448		*/
1449	<	void sleepTillInterrupted(long timeoutMillis) {
1449	>	static long millisElapsedSince(long startNanoTime) {
1450	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1451	>	}
1452	>
1453	>	/**
1454	>	* Checks that timed f.get() returns the expected value, and does not
1455	>	* wait for the timeout to elapse before returning.
1456	>	*/
1457	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1458	>	long startTime = System.nanoTime();
1459	>	T actual = null;
1460		try {
1461	<	Thread.sleep(timeoutMillis);
1462	<	} catch (InterruptedException wakeup) {}
1461	>	actual = f.get(timeoutMillis, MILLISECONDS);
1462	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1463	>	assertEquals(expectedValue, actual);
1464	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1465	>	throw new AssertionError("timed get did not return promptly");
1466	>	}
1467	>
1468	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1469	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1470		}
1471
1472		/**
#	Line 615 | Line 1480 | public class JSR166TestCase extends Test
1480		}
1481
1482		/**
1483	+	* Returns a new started daemon Thread running the given action,
1484	+	* wrapped in a CheckedRunnable.
1485	+	*/
1486	+	Thread newStartedThread(Action action) {
1487	+	return newStartedThread(checkedRunnable(action));
1488	+	}
1489	+
1490	+	/**
1491		* Waits for the specified time (in milliseconds) for the thread
1492		* to terminate (using {@link Thread#join(long)}), else interrupts
1493		* the thread (in the hope that it may terminate later) and fails.
1494		*/
1495	<	void awaitTermination(Thread t, long timeoutMillis) {
1495	>	void awaitTermination(Thread thread, long timeoutMillis) {
1496		try {
1497	<	t.join(timeoutMillis);
1498	<	} catch (InterruptedException ie) {
1499	<	threadUnexpectedException(ie);
1500	<	} finally {
1501	<	if (t.isAlive()) {
1502	<	t.interrupt();
1503	<	fail("Test timed out");
1497	>	thread.join(timeoutMillis);
1498	>	} catch (InterruptedException fail) {
1499	>	threadUnexpectedException(fail);
1500	>	}
1501	>	if (thread.getState() != Thread.State.TERMINATED) {
1502	>	String detail = String.format(
1503	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1504	>	thread, thread.getState());
1505	>	try {
1506	>	threadFail(detail);
1507	>	} finally {
1508	>	// Interrupt thread __after__ having reported its stack trace
1509	>	thread.interrupt();
1510		}
1511		}
1512		}
1513
1514	+	/**
1515	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1516	+	* terminate (using {@link Thread#join(long)}), else interrupts
1517	+	* the thread (in the hope that it may terminate later) and fails.
1518	+	*/
1519	+	void awaitTermination(Thread t) {
1520	+	awaitTermination(t, LONG_DELAY_MS);
1521	+	}
1522	+
1523		// Some convenient Runnable classes
1524
1525		public abstract class CheckedRunnable implements Runnable {
#	Line 640 | Line 1528 | public class JSR166TestCase extends Test
1528		public final void run() {
1529		try {
1530		realRun();
1531	<	} catch (Throwable t) {
1532	<	threadUnexpectedException(t);
1531	>	} catch (Throwable fail) {
1532	>	threadUnexpectedException(fail);
1533		}
1534		}
1535		}
1536
1537	<	public abstract class RunnableShouldThrow implements Runnable {
1538	<	protected abstract void realRun() throws Throwable;
1539	<
1540	<	final Class<?> exceptionClass;
1541	<
654	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
655	<	this.exceptionClass = exceptionClass;
656	<	}
657	<
658	<	public final void run() {
659	<	try {
660	<	realRun();
661	<	threadShouldThrow(exceptionClass.getSimpleName());
662	<	} catch (Throwable t) {
663	<	if (! exceptionClass.isInstance(t))
664	<	threadUnexpectedException(t);
665	<	}
666	<	}
1537	>	Runnable checkedRunnable(Action action) {
1538	>	return new CheckedRunnable() {
1539	>	public void realRun() throws Throwable {
1540	>	action.run();
1541	>	}};
1542		}
1543
1544		public abstract class ThreadShouldThrow extends Thread {
#	Line 678 | Line 1553 | public class JSR166TestCase extends Test
1553		public final void run() {
1554		try {
1555		realRun();
681	–	threadShouldThrow(exceptionClass.getSimpleName());
1556		} catch (Throwable t) {
1557		if (! exceptionClass.isInstance(t))
1558		threadUnexpectedException(t);
1559	+	return;
1560		}
1561	+	threadShouldThrow(exceptionClass.getSimpleName());
1562		}
1563		}
1564
#	Line 692 | Line 1568 | public class JSR166TestCase extends Test
1568		public final void run() {
1569		try {
1570		realRun();
695	–	threadShouldThrow("InterruptedException");
1571		} catch (InterruptedException success) {
1572	<	} catch (Throwable t) {
1573	<	threadUnexpectedException(t);
1572	>	threadAssertFalse(Thread.interrupted());
1573	>	return;
1574	>	} catch (Throwable fail) {
1575	>	threadUnexpectedException(fail);
1576		}
1577	+	threadShouldThrow("InterruptedException");
1578		}
1579		}
1580
#	Line 706 | Line 1584 | public class JSR166TestCase extends Test
1584		public final T call() {
1585		try {
1586		return realCall();
1587	<	} catch (Throwable t) {
1588	<	threadUnexpectedException(t);
711	<	return null;
1587	>	} catch (Throwable fail) {
1588	>	threadUnexpectedException(fail);
1589		}
1590	<	}
714	<	}
715	<
716	<	public abstract class CheckedInterruptedCallable<T>
717	<	implements Callable<T> {
718	<	protected abstract T realCall() throws Throwable;
719	<
720	<	public final T call() {
721	<	try {
722	<	T result = realCall();
723	<	threadShouldThrow("InterruptedException");
724	<	return result;
725	<	} catch (InterruptedException success) {
726	<	} catch (Throwable t) {
727	<	threadUnexpectedException(t);
728	<	}
729	<	return null;
1590	>	throw new AssertionError("unreached");
1591		}
1592		}
1593
#	Line 741 | Line 1602 | public class JSR166TestCase extends Test
1602		public static final String TEST_STRING = "a test string";
1603
1604		public static class StringTask implements Callable<String> {
1605	<	public String call() { return TEST_STRING; }
1605	>	final String value;
1606	>	public StringTask() { this(TEST_STRING); }
1607	>	public StringTask(String value) { this.value = value; }
1608	>	public String call() { return value; }
1609		}
1610
1611		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1612		return new CheckedCallable<String>() {
1613	<	public String realCall() {
1613	>	protected String realCall() {
1614		try {
1615		latch.await();
1616		} catch (InterruptedException quittingTime) {}
#	Line 754 | Line 1618 | public class JSR166TestCase extends Test
1618		}};
1619		}
1620
1621	<	public static class NPETask implements Callable<String> {
1622	<	public String call() { throw new NullPointerException(); }
1623	<	}
1624	<
1625	<	public static class CallableOne implements Callable<Integer> {
762	<	public Integer call() { return one; }
1621	>	public Runnable countDowner(final CountDownLatch latch) {
1622	>	return new CheckedRunnable() {
1623	>	public void realRun() throws InterruptedException {
1624	>	latch.countDown();
1625	>	}};
1626		}
1627
1628	<	public class ShortRunnable extends CheckedRunnable {
1629	<	protected void realRun() throws Throwable {
1630	<	Thread.sleep(SHORT_DELAY_MS);
1628	>	class LatchAwaiter extends CheckedRunnable {
1629	>	static final int NEW = 0;
1630	>	static final int RUNNING = 1;
1631	>	static final int DONE = 2;
1632	>	final CountDownLatch latch;
1633	>	int state = NEW;
1634	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1635	>	public void realRun() throws InterruptedException {
1636	>	state = 1;
1637	>	await(latch);
1638	>	state = 2;
1639		}
1640		}
1641
1642	<	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1643	<	protected void realRun() throws InterruptedException {
773	<	Thread.sleep(SHORT_DELAY_MS);
774	<	}
1642	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1643	>	return new LatchAwaiter(latch);
1644		}
1645
1646	<	public class SmallRunnable extends CheckedRunnable {
1647	<	protected void realRun() throws Throwable {
1648	<	Thread.sleep(SMALL_DELAY_MS);
1646	>	public void await(CountDownLatch latch, long timeoutMillis) {
1647	>	boolean timedOut = false;
1648	>	try {
1649	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1650	>	} catch (Throwable fail) {
1651	>	threadUnexpectedException(fail);
1652		}
1653	+	if (timedOut)
1654	+	fail("timed out waiting for CountDownLatch for "
1655	+	+ (timeoutMillis/1000) + " sec");
1656		}
1657
1658	<	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1659	<	protected void realRun() {
785	<	try {
786	<	Thread.sleep(SMALL_DELAY_MS);
787	<	} catch (InterruptedException ok) {}
788	<	}
1658	>	public void await(CountDownLatch latch) {
1659	>	await(latch, LONG_DELAY_MS);
1660		}
1661
1662	<	public class SmallCallable extends CheckedCallable {
1663	<	protected Object realCall() throws InterruptedException {
1664	<	Thread.sleep(SMALL_DELAY_MS);
1665	<	return Boolean.TRUE;
1662	>	public void await(Semaphore semaphore) {
1663	>	boolean timedOut = false;
1664	>	try {
1665	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1666	>	} catch (Throwable fail) {
1667	>	threadUnexpectedException(fail);
1668		}
1669	+	if (timedOut)
1670	+	fail("timed out waiting for Semaphore for "
1671	+	+ (LONG_DELAY_MS/1000) + " sec");
1672		}
1673
1674	<	public class MediumRunnable extends CheckedRunnable {
1675	<	protected void realRun() throws Throwable {
1676	<	Thread.sleep(MEDIUM_DELAY_MS);
1674	>	public void await(CyclicBarrier barrier) {
1675	>	try {
1676	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1677	>	} catch (Throwable fail) {
1678	>	threadUnexpectedException(fail);
1679		}
1680		}
1681
1682	<	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1683	<	protected void realRun() throws InterruptedException {
1684	<	Thread.sleep(MEDIUM_DELAY_MS);
1685	<	}
1686	<	}
1682	>	//     /**
1683	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1684	>	//      */
1685	>	//     public void await(AtomicBoolean flag) {
1686	>	//         await(flag, LONG_DELAY_MS);
1687	>	//     }
1688	>
1689	>	//     /**
1690	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1691	>	//      */
1692	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1693	>	//         long startTime = System.nanoTime();
1694	>	//         while (!flag.get()) {
1695	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1696	>	//                 throw new AssertionError("timed out");
1697	>	//             Thread.yield();
1698	>	//         }
1699	>	//     }
1700
1701	<	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1702	<	protected void realRun() {
812	<	try {
813	<	Thread.sleep(MEDIUM_DELAY_MS);
814	<	} catch (InterruptedException ok) {}
815	<	}
1701	>	public static class NPETask implements Callable<String> {
1702	>	public String call() { throw new NullPointerException(); }
1703		}
1704
1705	<	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1706	<	protected void realRun() {
1707	<	try {
1708	<	Thread.sleep(LONG_DELAY_MS);
1709	<	} catch (InterruptedException ok) {}
1710	<	}
1705	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1706	>	return new CheckedRunnable() {
1707	>	protected void realRun() {
1708	>	try {
1709	>	delay(timeoutMillis);
1710	>	} catch (InterruptedException ok) {}
1711	>	}};
1712		}
1713
1714		/**
#	Line 836 | Line 1724 | public class JSR166TestCase extends Test
1724		boolean isDone();
1725		}
1726
839	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
840	–	return new TrackedRunnable() {
841	–	private volatile boolean done = false;
842	–	public boolean isDone() { return done; }
843	–	public void run() {
844	–	try {
845	–	Thread.sleep(timeoutMillis);
846	–	done = true;
847	–	} catch (InterruptedException ok) {}
848	–	}
849	–	};
850	–	}
851	–
852	–	public static class TrackedShortRunnable implements Runnable {
853	–	public volatile boolean done = false;
854	–	public void run() {
855	–	try {
856	–	Thread.sleep(SHORT_DELAY_MS);
857	–	done = true;
858	–	} catch (InterruptedException ok) {}
859	–	}
860	–	}
861	–
862	–	public static class TrackedSmallRunnable implements Runnable {
863	–	public volatile boolean done = false;
864	–	public void run() {
865	–	try {
866	–	Thread.sleep(SMALL_DELAY_MS);
867	–	done = true;
868	–	} catch (InterruptedException ok) {}
869	–	}
870	–	}
871	–
872	–	public static class TrackedMediumRunnable implements Runnable {
873	–	public volatile boolean done = false;
874	–	public void run() {
875	–	try {
876	–	Thread.sleep(MEDIUM_DELAY_MS);
877	–	done = true;
878	–	} catch (InterruptedException ok) {}
879	–	}
880	–	}
881	–
882	–	public static class TrackedLongRunnable implements Runnable {
883	–	public volatile boolean done = false;
884	–	public void run() {
885	–	try {
886	–	Thread.sleep(LONG_DELAY_MS);
887	–	done = true;
888	–	} catch (InterruptedException ok) {}
889	–	}
890	–	}
891	–
1727		public static class TrackedNoOpRunnable implements Runnable {
1728		public volatile boolean done = false;
1729		public void run() {
#	Line 896 | Line 1731 | public class JSR166TestCase extends Test
1731		}
1732		}
1733
899	–	public static class TrackedCallable implements Callable {
900	–	public volatile boolean done = false;
901	–	public Object call() {
902	–	try {
903	–	Thread.sleep(SMALL_DELAY_MS);
904	–	done = true;
905	–	} catch (InterruptedException ok) {}
906	–	return Boolean.TRUE;
907	–	}
908	–	}
909	–
1734		/**
1735		* Analog of CheckedRunnable for RecursiveAction
1736		*/
1737		public abstract class CheckedRecursiveAction extends RecursiveAction {
1738		protected abstract void realCompute() throws Throwable;
1739
1740	<	public final void compute() {
1740	>	@Override protected final void compute() {
1741		try {
1742		realCompute();
1743	<	} catch (Throwable t) {
1744	<	threadUnexpectedException(t);
1743	>	} catch (Throwable fail) {
1744	>	threadUnexpectedException(fail);
1745		}
1746		}
1747		}
#	Line 928 | Line 1752 | public class JSR166TestCase extends Test
1752		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1753		protected abstract T realCompute() throws Throwable;
1754
1755	<	public final T compute() {
1755	>	@Override protected final T compute() {
1756		try {
1757		return realCompute();
1758	<	} catch (Throwable t) {
1759	<	threadUnexpectedException(t);
936	<	return null;
1758	>	} catch (Throwable fail) {
1759	>	threadUnexpectedException(fail);
1760		}
1761	+	throw new AssertionError("unreached");
1762		}
1763		}
1764
#	Line 947 | Line 1771 | public class JSR166TestCase extends Test
1771		}
1772
1773		/**
1774	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1775	<	* of throwing checked exceptions.
1774	>	* A CyclicBarrier that uses timed await and fails with
1775	>	* AssertionErrors instead of throwing checked exceptions.
1776		*/
1777	<	public class CheckedBarrier extends CyclicBarrier {
1777	>	public static class CheckedBarrier extends CyclicBarrier {
1778		public CheckedBarrier(int parties) { super(parties); }
1779
1780		public int await() {
1781		try {
1782	<	return super.await();
1783	<	} catch (Exception e) {
1784	<	AssertionFailedError afe =
1785	<	new AssertionFailedError("Unexpected exception: " + e);
1786	<	afe.initCause(e);
1787	<	throw afe;
1782	>	return super.await(LONGER_DELAY_MS, MILLISECONDS);
1783	>	} catch (TimeoutException timedOut) {
1784	>	throw new AssertionError("timed out");
1785	>	} catch (Exception fail) {
1786	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1787	>	}
1788	>	}
1789	>	}
1790	>
1791	>	void checkEmpty(BlockingQueue q) {
1792	>	try {
1793	>	assertTrue(q.isEmpty());
1794	>	assertEquals(0, q.size());
1795	>	assertNull(q.peek());
1796	>	assertNull(q.poll());
1797	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1798	>	assertEquals(q.toString(), "[]");
1799	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1800	>	assertFalse(q.iterator().hasNext());
1801	>	try {
1802	>	q.element();
1803	>	shouldThrow();
1804	>	} catch (NoSuchElementException success) {}
1805	>	try {
1806	>	q.iterator().next();
1807	>	shouldThrow();
1808	>	} catch (NoSuchElementException success) {}
1809	>	try {
1810	>	q.remove();
1811	>	shouldThrow();
1812	>	} catch (NoSuchElementException success) {}
1813	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1814	>	}
1815	>
1816	>	void assertSerialEquals(Object x, Object y) {
1817	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1818	>	}
1819	>
1820	>	void assertNotSerialEquals(Object x, Object y) {
1821	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1822	>	}
1823	>
1824	>	byte[] serialBytes(Object o) {
1825	>	try {
1826	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1827	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1828	>	oos.writeObject(o);
1829	>	oos.flush();
1830	>	oos.close();
1831	>	return bos.toByteArray();
1832	>	} catch (Throwable fail) {
1833	>	threadUnexpectedException(fail);
1834	>	return new byte[0];
1835	>	}
1836	>	}
1837	>
1838	>	void assertImmutable(Object o) {
1839	>	if (o instanceof Collection) {
1840	>	assertThrows(
1841	>	UnsupportedOperationException.class,
1842	>	() -> ((Collection) o).add(null));
1843	>	}
1844	>	}
1845	>
1846	>	@SuppressWarnings("unchecked")
1847	>	<T> T serialClone(T o) {
1848	>	T clone = null;
1849	>	try {
1850	>	ObjectInputStream ois = new ObjectInputStream
1851	>	(new ByteArrayInputStream(serialBytes(o)));
1852	>	clone = (T) ois.readObject();
1853	>	} catch (Throwable fail) {
1854	>	threadUnexpectedException(fail);
1855	>	}
1856	>	if (o == clone) assertImmutable(o);
1857	>	else assertSame(o.getClass(), clone.getClass());
1858	>	return clone;
1859	>	}
1860	>
1861	>	/**
1862	>	* A version of serialClone that leaves error handling (for
1863	>	* e.g. NotSerializableException) up to the caller.
1864	>	*/
1865	>	@SuppressWarnings("unchecked")
1866	>	<T> T serialClonePossiblyFailing(T o)
1867	>	throws ReflectiveOperationException, java.io.IOException {
1868	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1869	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1870	>	oos.writeObject(o);
1871	>	oos.flush();
1872	>	oos.close();
1873	>	ObjectInputStream ois = new ObjectInputStream
1874	>	(new ByteArrayInputStream(bos.toByteArray()));
1875	>	T clone = (T) ois.readObject();
1876	>	if (o == clone) assertImmutable(o);
1877	>	else assertSame(o.getClass(), clone.getClass());
1878	>	return clone;
1879	>	}
1880	>
1881	>	/**
1882	>	* If o implements Cloneable and has a public clone method,
1883	>	* returns a clone of o, else null.
1884	>	*/
1885	>	@SuppressWarnings("unchecked")
1886	>	<T> T cloneableClone(T o) {
1887	>	if (!(o instanceof Cloneable)) return null;
1888	>	final T clone;
1889	>	try {
1890	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1891	>	} catch (NoSuchMethodException ok) {
1892	>	return null;
1893	>	} catch (ReflectiveOperationException unexpected) {
1894	>	throw new Error(unexpected);
1895	>	}
1896	>	assertNotSame(o, clone); // not 100% guaranteed by spec
1897	>	assertSame(o.getClass(), clone.getClass());
1898	>	return clone;
1899	>	}
1900	>
1901	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1902	>	Action... throwingActions) {
1903	>	for (Action throwingAction : throwingActions) {
1904	>	boolean threw = false;
1905	>	try { throwingAction.run(); }
1906	>	catch (Throwable t) {
1907	>	threw = true;
1908	>	if (!expectedExceptionClass.isInstance(t))
1909	>	throw new AssertionError(
1910	>	"Expected " + expectedExceptionClass.getName() +
1911	>	", got " + t.getClass().getName(),
1912	>	t);
1913		}
1914	+	if (!threw)
1915	+	shouldThrow(expectedExceptionClass.getName());
1916		}
1917		}
1918
1919	+	public void assertIteratorExhausted(Iterator<?> it) {
1920	+	try {
1921	+	it.next();
1922	+	shouldThrow();
1923	+	} catch (NoSuchElementException success) {}
1924	+	assertFalse(it.hasNext());
1925	+	}
1926	+
1927	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1928	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1929	+	}
1930	+
1931	+	public Runnable runnableThrowing(final RuntimeException ex) {
1932	+	return new Runnable() { public void run() { throw ex; }};
1933	+	}
1934	+
1935	+	/** A reusable thread pool to be shared by tests. */
1936	+	static final ExecutorService cachedThreadPool =
1937	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1938	+	1000L, MILLISECONDS,
1939	+	new SynchronousQueue<Runnable>());
1940	+
1941	+	static <T> void shuffle(T[] array) {
1942	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1943	+	}
1944	+
1945	+	/**
1946	+	* Returns the same String as would be returned by {@link
1947	+	* Object#toString}, whether or not the given object's class
1948	+	* overrides toString().
1949	+	*
1950	+	* @see System#identityHashCode
1951	+	*/
1952	+	static String identityString(Object x) {
1953	+	return x.getClass().getName()
1954	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1955	+	}
1956	+
1957	+	// --- Shared assertions for Executor tests ---
1958	+
1959	+	/**
1960	+	* Returns maximum number of tasks that can be submitted to given
1961	+	* pool (with bounded queue) before saturation (when submission
1962	+	* throws RejectedExecutionException).
1963	+	*/
1964	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1965	+	BlockingQueue<Runnable> q = pool.getQueue();
1966	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1967	+	}
1968	+
1969	+	@SuppressWarnings("FutureReturnValueIgnored")
1970	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1971	+	try {
1972	+	e.execute((Runnable) null);
1973	+	shouldThrow();
1974	+	} catch (NullPointerException success) {}
1975	+
1976	+	if (! (e instanceof ExecutorService)) return;
1977	+	ExecutorService es = (ExecutorService) e;
1978	+	try {
1979	+	es.submit((Runnable) null);
1980	+	shouldThrow();
1981	+	} catch (NullPointerException success) {}
1982	+	try {
1983	+	es.submit((Runnable) null, Boolean.TRUE);
1984	+	shouldThrow();
1985	+	} catch (NullPointerException success) {}
1986	+	try {
1987	+	es.submit((Callable) null);
1988	+	shouldThrow();
1989	+	} catch (NullPointerException success) {}
1990	+
1991	+	if (! (e instanceof ScheduledExecutorService)) return;
1992	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1993	+	try {
1994	+	ses.schedule((Runnable) null,
1995	+	randomTimeout(), randomTimeUnit());
1996	+	shouldThrow();
1997	+	} catch (NullPointerException success) {}
1998	+	try {
1999	+	ses.schedule((Callable) null,
2000	+	randomTimeout(), randomTimeUnit());
2001	+	shouldThrow();
2002	+	} catch (NullPointerException success) {}
2003	+	try {
2004	+	ses.scheduleAtFixedRate((Runnable) null,
2005	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2006	+	shouldThrow();
2007	+	} catch (NullPointerException success) {}
2008	+	try {
2009	+	ses.scheduleWithFixedDelay((Runnable) null,
2010	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2011	+	shouldThrow();
2012	+	} catch (NullPointerException success) {}
2013	+	}
2014	+
2015	+	void setRejectedExecutionHandler(
2016	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
2017	+	p.setRejectedExecutionHandler(handler);
2018	+	assertSame(handler, p.getRejectedExecutionHandler());
2019	+	}
2020	+
2021	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
2022	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
2023	+	final long savedTaskCount = p.getTaskCount();
2024	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
2025	+	final int savedQueueSize = p.getQueue().size();
2026	+	final boolean stock = (p.getClass().getClassLoader() == null);
2027	+
2028	+	Runnable r = () -> {};
2029	+	Callable<Boolean> c = () -> Boolean.TRUE;
2030	+
2031	+	class Recorder implements RejectedExecutionHandler {
2032	+	public volatile Runnable r = null;
2033	+	public volatile ThreadPoolExecutor p = null;
2034	+	public void reset() { r = null; p = null; }
2035	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2036	+	assertNull(this.r);
2037	+	assertNull(this.p);
2038	+	this.r = r;
2039	+	this.p = p;
2040	+	}
2041	+	}
2042	+
2043	+	// check custom handler is invoked exactly once per task
2044	+	Recorder recorder = new Recorder();
2045	+	setRejectedExecutionHandler(p, recorder);
2046	+	for (int i = 2; i--> 0; ) {
2047	+	recorder.reset();
2048	+	p.execute(r);
2049	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2050	+	assertSame(r, recorder.r);
2051	+	assertSame(p, recorder.p);
2052	+
2053	+	recorder.reset();
2054	+	assertFalse(p.submit(r).isDone());
2055	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2056	+	assertSame(p, recorder.p);
2057	+
2058	+	recorder.reset();
2059	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2060	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2061	+	assertSame(p, recorder.p);
2062	+
2063	+	recorder.reset();
2064	+	assertFalse(p.submit(c).isDone());
2065	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2066	+	assertSame(p, recorder.p);
2067	+
2068	+	if (p instanceof ScheduledExecutorService) {
2069	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2070	+	ScheduledFuture<?> future;
2071	+
2072	+	recorder.reset();
2073	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2074	+	assertFalse(future.isDone());
2075	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2076	+	assertSame(p, recorder.p);
2077	+
2078	+	recorder.reset();
2079	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2080	+	assertFalse(future.isDone());
2081	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2082	+	assertSame(p, recorder.p);
2083	+
2084	+	recorder.reset();
2085	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2086	+	assertFalse(future.isDone());
2087	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2088	+	assertSame(p, recorder.p);
2089	+
2090	+	recorder.reset();
2091	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2092	+	assertFalse(future.isDone());
2093	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2094	+	assertSame(p, recorder.p);
2095	+	}
2096	+	}
2097	+
2098	+	// Checking our custom handler above should be sufficient, but
2099	+	// we add some integration tests of standard handlers.
2100	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2101	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2102	+
2103	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2104	+	try {
2105	+	p.execute(setThread);
2106	+	shouldThrow();
2107	+	} catch (RejectedExecutionException success) {}
2108	+	assertNull(thread.get());
2109	+
2110	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2111	+	p.execute(setThread);
2112	+	assertNull(thread.get());
2113	+
2114	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2115	+	p.execute(setThread);
2116	+	if (p.isShutdown())
2117	+	assertNull(thread.get());
2118	+	else
2119	+	assertSame(Thread.currentThread(), thread.get());
2120	+
2121	+	setRejectedExecutionHandler(p, savedHandler);
2122	+
2123	+	// check that pool was not perturbed by handlers
2124	+	assertEquals(savedTaskCount, p.getTaskCount());
2125	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2126	+	assertEquals(savedQueueSize, p.getQueue().size());
2127	+	}
2128	+
2129	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2130	+	assertEquals(x, y);
2131	+	assertEquals(y, x);
2132	+	assertEquals(x.isEmpty(), y.isEmpty());
2133	+	assertEquals(x.size(), y.size());
2134	+	if (x instanceof List) {
2135	+	assertEquals(x.toString(), y.toString());
2136	+	}
2137	+	if (x instanceof List || x instanceof Set) {
2138	+	assertEquals(x.hashCode(), y.hashCode());
2139	+	}
2140	+	if (x instanceof List || x instanceof Deque) {
2141	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2142	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2143	+	y.toArray(new Object[0])));
2144	+	}
2145	+	}
2146	+
2147	+	/**
2148	+	* A weaker form of assertCollectionsEquals which does not insist
2149	+	* that the two collections satisfy Object#equals(Object), since
2150	+	* they may use identity semantics as Deques do.
2151	+	*/
2152	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2153	+	if (x instanceof List || x instanceof Set)
2154	+	assertCollectionsEquals(x, y);
2155	+	else {
2156	+	assertEquals(x.isEmpty(), y.isEmpty());
2157	+	assertEquals(x.size(), y.size());
2158	+	assertEquals(new HashSet(x), new HashSet(y));
2159	+	if (x instanceof Deque) {
2160	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2161	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2162	+	y.toArray(new Object[0])));
2163	+	}
2164	+	}
2165	+	}
2166		}

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