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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.60 by jsr166, Wed Oct 6 07:49:22 2010 UTC vs.
Revision 1.266 by jsr166, Sat Sep 7 17:40:05 2019 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
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.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 18 | Line 61 | import java.security.Permissions;
61		import java.security.Policy;
62		import java.security.ProtectionDomain;
63		import java.security.SecurityPermission;
64	+	import java.util.ArrayList;
65	+	import java.util.Arrays;
66	+	import java.util.Collection;
67	+	import java.util.Collections;
68	+	import java.util.Date;
69	+	import java.util.Deque;
70	+	import java.util.Enumeration;
71	+	import java.util.HashSet;
72	+	import java.util.Iterator;
73	+	import java.util.List;
74	+	import java.util.NoSuchElementException;
75	+	import java.util.PropertyPermission;
76	+	import java.util.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	+
105	+	import junit.framework.Test;
106	+	import junit.framework.TestCase;
107	+	import junit.framework.TestResult;
108	+	import junit.framework.TestSuite;
109
110		/**
111		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 29 | Line 117 | import java.security.SecurityPermission;
117		*
118		* <ol>
119		*
120	<	* <li> All assertions in code running in generated threads must use
121	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
122	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
123	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
124	<	* particularly recommended) for other code to use these forms too.
125	<	* Only the most typically used JUnit assertion methods are defined
126	<	* this way, but enough to live with.</li>
120	>	* <li>All code not running in the main test thread (manually spawned threads
121	>	* or the common fork join pool) must be checked for failure (and completion!).
122	>	* Mechanisms that can be used to ensure this are:
123	>	*   <ol>
124	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
125	>	*    that the task completed normally, which is checked before returning from
126	>	*    the test method in the main thread.
127	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
128	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
129	>	*    Only the most typically used JUnit assertion methods are defined
130	>	*    this way, but enough to live with.
131	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
132	>	*    or {@link #threadRecordFailure}.
133	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
134	>	*   </ol>
135		*
136	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
136	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
137		* to invoke {@code super.setUp} and {@code super.tearDown} within
138		* them. These methods are used to clear and check for thread
139	<	* assertion failures.</li>
139	>	* assertion failures.
140		*
141		* <li>All delays and timeouts must use one of the constants {@code
142		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 147 | import java.security.SecurityPermission;
147		* is always discriminable as larger than SHORT and smaller than
148		* MEDIUM.  And so on. These constants are set to conservative values,
149		* but even so, if there is ever any doubt, they can all be increased
150	<	* in one spot to rerun tests on slower platforms.</li>
150	>	* in one spot to rerun tests on slower platforms.
151		*
152	<	* <li> All threads generated must be joined inside each test case
152	>	* <li>All threads generated must be joined inside each test case
153		* method (or {@code fail} to do so) before returning from the
154		* method. The {@code joinPool} method can be used to do this when
155	<	* using Executors.</li>
155	>	* using Executors.
156		*
157		* </ol>
158		*
159	<	* <p> <b>Other notes</b>
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
72	<	* 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 96 | Line 191 | public class JSR166TestCase extends Test
191		private static final boolean useSecurityManager =
192		Boolean.getBoolean("jsr166.useSecurityManager");
193
194	+	protected static final boolean expensiveTests =
195	+	Boolean.getBoolean("jsr166.expensiveTests");
196	+
197	+	/**
198	+	* If true, also run tests that are not part of the official tck
199	+	* because they test unspecified implementation details.
200	+	*/
201	+	protected static final boolean testImplementationDetails =
202	+	Boolean.getBoolean("jsr166.testImplementationDetails");
203	+
204		/**
205	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
205	>	* If true, report on stdout all "slow" tests, that is, ones that
206	>	* take more than profileThreshold milliseconds to execute.
207	>	*/
208	>	private static final boolean profileTests =
209	>	Boolean.getBoolean("jsr166.profileTests");
210	>
211	>	/**
212	>	* The number of milliseconds that tests are permitted for
213	>	* execution without being reported, when profileTests is set.
214	>	*/
215	>	private static final long profileThreshold =
216	>	Long.getLong("jsr166.profileThreshold", 100);
217	>
218	>	/**
219	>	* The number of repetitions per test (for tickling rare bugs).
220	>	*/
221	>	private static final int runsPerTest =
222	>	Integer.getInteger("jsr166.runsPerTest", 1);
223	>
224	>	/**
225	>	* The number of repetitions of the test suite (for finding leaks?).
226	>	*/
227	>	private static final int suiteRuns =
228	>	Integer.getInteger("jsr166.suiteRuns", 1);
229	>
230	>	/**
231	>	* Returns the value of the system property, or NaN if not defined.
232	>	*/
233	>	private static float systemPropertyValue(String name) {
234	>	String floatString = System.getProperty(name);
235	>	if (floatString == null)
236	>	return Float.NaN;
237	>	try {
238	>	return Float.parseFloat(floatString);
239	>	} catch (NumberFormatException ex) {
240	>	throw new IllegalArgumentException(
241	>	String.format("Bad float value in system property %s=%s",
242	>	name, floatString));
243	>	}
244	>	}
245	>
246	>	/**
247	>	* The scaling factor to apply to standard delays used in tests.
248	>	* May be initialized from any of:
249	>	* - the "jsr166.delay.factor" system property
250	>	* - the "test.timeout.factor" system property (as used by jtreg)
251	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
252	>	* - hard-coded fuzz factor when using a known slowpoke VM
253	>	*/
254	>	private static final float delayFactor = delayFactor();
255	>
256	>	private static float delayFactor() {
257	>	float x;
258	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
259	>	return x;
260	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
261	>	return x;
262	>	String prop = System.getProperty("java.vm.version");
263	>	if (prop != null && prop.matches(".*debug.*"))
264	>	return 4.0f; // How much slower is fastdebug than product?!
265	>	return 1.0f;
266	>	}
267	>
268	>	public JSR166TestCase() { super(); }
269	>	public JSR166TestCase(String name) { super(name); }
270	>
271	>	/**
272	>	* A filter for tests to run, matching strings of the form
273	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
274	>	* Usefully combined with jsr166.runsPerTest.
275	>	*/
276	>	private static final Pattern methodFilter = methodFilter();
277	>
278	>	private static Pattern methodFilter() {
279	>	String regex = System.getProperty("jsr166.methodFilter");
280	>	return (regex == null) ? null : Pattern.compile(regex);
281	>	}
282	>
283	>	// Instrumentation to debug very rare, but very annoying hung test runs.
284	>	static volatile TestCase currentTestCase;
285	>	// static volatile int currentRun = 0;
286	>	static {
287	>	Runnable wedgedTestDetector = new Runnable() { public void run() {
288	>	// Avoid spurious reports with enormous runsPerTest.
289	>	// A single test case run should never take more than 1 second.
290	>	// But let's cap it at the high end too ...
291	>	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
292	>	* Math.max((int) delayFactor, 1);
293	>	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
294	>	for (TestCase lastTestCase = currentTestCase;;) {
295	>	try { MINUTES.sleep(timeoutMinutes); }
296	>	catch (InterruptedException unexpected) { break; }
297	>	if (lastTestCase == currentTestCase) {
298	>	System.err.printf(
299	>	"Looks like we're stuck running test: %s%n",
300	>	lastTestCase);
301	>	//                     System.err.printf(
302	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
303	>	//                         lastTestCase, currentRun, runsPerTest);
304	>	//                     System.err.println("availableProcessors=" +
305	>	//                         Runtime.getRuntime().availableProcessors());
306	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
307	>	dumpTestThreads();
308	>	// one stack dump is probably enough; more would be spam
309	>	break;
310	>	}
311	>	lastTestCase = currentTestCase;
312	>	}}};
313	>	Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
314	>	thread.setDaemon(true);
315	>	thread.start();
316	>	}
317	>
318	>	//     public static String cpuModel() {
319	>	//         try {
320	>	//             java.util.regex.Matcher matcher
321	>	//               = Pattern.compile("model name\\s*: (.*)")
322	>	//                 .matcher(new String(
323	>	//                     java.nio.file.Files.readAllBytes(
324	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
325	>	//             matcher.find();
326	>	//             return matcher.group(1);
327	>	//         } catch (Exception ex) { return null; }
328	>	//     }
329	>
330	>	public void runBare() throws Throwable {
331	>	currentTestCase = this;
332	>	if (methodFilter == null
333	>	|| methodFilter.matcher(toString()).find())
334	>	super.runBare();
335	>	}
336	>
337	>	protected void runTest() throws Throwable {
338	>	for (int i = 0; i < runsPerTest; i++) {
339	>	// currentRun = i;
340	>	if (profileTests)
341	>	runTestProfiled();
342	>	else
343	>	super.runTest();
344	>	}
345	>	}
346	>
347	>	protected void runTestProfiled() throws Throwable {
348	>	for (int i = 0; i < 2; i++) {
349	>	long startTime = System.nanoTime();
350	>	super.runTest();
351	>	long elapsedMillis = millisElapsedSince(startTime);
352	>	if (elapsedMillis < profileThreshold)
353	>	break;
354	>	// Never report first run of any test; treat it as a
355	>	// warmup run, notably to trigger all needed classloading,
356	>	if (i > 0)
357	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
358	>	}
359	>	}
360	>
361	>	/**
362	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
363		*/
364		public static void main(String[] args) {
365	+	main(suite(), args);
366	+	}
367	+
368	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
369	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
370	+	long runTime;
371	+	public void startTest(Test test) {}
372	+	protected void printHeader(long runTime) {
373	+	this.runTime = runTime; // defer printing for later
374	+	}
375	+	protected void printFooter(TestResult result) {
376	+	if (result.wasSuccessful()) {
377	+	getWriter().println("OK (" + result.runCount() + " tests)"
378	+	+ "  Time: " + elapsedTimeAsString(runTime));
379	+	} else {
380	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
381	+	super.printFooter(result);
382	+	}
383	+	}
384	+	}
385	+
386	+	/**
387	+	* Returns a TestRunner that doesn't bother with unnecessary
388	+	* fluff, like printing a "." for each test case.
389	+	*/
390	+	static junit.textui.TestRunner newPithyTestRunner() {
391	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
392	+	runner.setPrinter(new PithyResultPrinter(System.out));
393	+	return runner;
394	+	}
395	+
396	+	/**
397	+	* Runs all unit tests in the given test suite.
398	+	* Actual behavior influenced by jsr166.* system properties.
399	+	*/
400	+	static void main(Test suite, String[] args) {
401		if (useSecurityManager) {
402		System.err.println("Setting a permissive security manager");
403		Policy.setPolicy(permissivePolicy());
404		System.setSecurityManager(new SecurityManager());
405		}
406	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
407	<
408	<	Test s = suite();
409	<	for (int i = 0; i < iters; ++i) {
112	<	junit.textui.TestRunner.run(s);
406	>	for (int i = 0; i < suiteRuns; i++) {
407	>	TestResult result = newPithyTestRunner().doRun(suite);
408	>	if (!result.wasSuccessful())
409	>	System.exit(1);
410		System.gc();
411		System.runFinalization();
412		}
116	–	System.exit(0);
413		}
414
415		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 129 | Line 425 | public class JSR166TestCase extends Test
425		return suite;
426		}
427
428	+	public static void addNamedTestClasses(TestSuite suite,
429	+	String... testClassNames) {
430	+	for (String testClassName : testClassNames) {
431	+	try {
432	+	Class<?> testClass = Class.forName(testClassName);
433	+	Method m = testClass.getDeclaredMethod("suite");
434	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
435	+	} catch (ReflectiveOperationException e) {
436	+	throw new AssertionError("Missing test class", e);
437	+	}
438	+	}
439	+	}
440	+
441	+	public static final double JAVA_CLASS_VERSION;
442	+	public static final String JAVA_SPECIFICATION_VERSION;
443	+	static {
444	+	try {
445	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
446	+	new java.security.PrivilegedAction<Double>() {
447	+	public Double run() {
448	+	return Double.valueOf(System.getProperty("java.class.version"));}});
449	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
450	+	new java.security.PrivilegedAction<String>() {
451	+	public String run() {
452	+	return System.getProperty("java.specification.version");}});
453	+	} catch (Throwable t) {
454	+	throw new Error(t);
455	+	}
456	+	}
457	+
458	+	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
459	+	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
460	+	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
461	+	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
462	+	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
463	+	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
464	+	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
465	+	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
466	+	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
467	+	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
468	+	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
469	+	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
470	+
471		/**
472		* Collects all JSR166 unit tests as one suite.
473		*/
474		public static Test suite() {
475	<	return newTestSuite(
475	>	// Java7+ test classes
476	>	TestSuite suite = newTestSuite(
477		ForkJoinPoolTest.suite(),
478		ForkJoinTaskTest.suite(),
479		RecursiveActionTest.suite(),
#	Line 147 | Line 487 | public class JSR166TestCase extends Test
487		AbstractQueuedLongSynchronizerTest.suite(),
488		ArrayBlockingQueueTest.suite(),
489		ArrayDequeTest.suite(),
490	+	ArrayListTest.suite(),
491		AtomicBooleanTest.suite(),
492		AtomicIntegerArrayTest.suite(),
493		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 169 | Line 510 | public class JSR166TestCase extends Test
510		CopyOnWriteArrayListTest.suite(),
511		CopyOnWriteArraySetTest.suite(),
512		CountDownLatchTest.suite(),
513	+	CountedCompleterTest.suite(),
514		CyclicBarrierTest.suite(),
515		DelayQueueTest.suite(),
516		EntryTest.suite(),
#	Line 176 | Line 518 | public class JSR166TestCase extends Test
518		ExecutorsTest.suite(),
519		ExecutorCompletionServiceTest.suite(),
520		FutureTaskTest.suite(),
521	+	HashtableTest.suite(),
522		LinkedBlockingDequeTest.suite(),
523		LinkedBlockingQueueTest.suite(),
524		LinkedListTest.suite(),
#	Line 197 | Line 540 | public class JSR166TestCase extends Test
540		TreeMapTest.suite(),
541		TreeSetTest.suite(),
542		TreeSubMapTest.suite(),
543	<	TreeSubSetTest.suite());
543	>	TreeSubSetTest.suite(),
544	>	VectorTest.suite());
545	>
546	>	// Java8+ test classes
547	>	if (atLeastJava8()) {
548	>	String[] java8TestClassNames = {
549	>	"ArrayDeque8Test",
550	>	"Atomic8Test",
551	>	"CompletableFutureTest",
552	>	"ConcurrentHashMap8Test",
553	>	"CountedCompleter8Test",
554	>	"DoubleAccumulatorTest",
555	>	"DoubleAdderTest",
556	>	"ForkJoinPool8Test",
557	>	"ForkJoinTask8Test",
558	>	"HashMapTest",
559	>	"LinkedBlockingDeque8Test",
560	>	"LinkedBlockingQueue8Test",
561	>	"LinkedHashMapTest",
562	>	"LongAccumulatorTest",
563	>	"LongAdderTest",
564	>	"SplittableRandomTest",
565	>	"StampedLockTest",
566	>	"SubmissionPublisherTest",
567	>	"ThreadLocalRandom8Test",
568	>	"TimeUnit8Test",
569	>	};
570	>	addNamedTestClasses(suite, java8TestClassNames);
571	>	}
572	>
573	>	// Java9+ test classes
574	>	if (atLeastJava9()) {
575	>	String[] java9TestClassNames = {
576	>	"AtomicBoolean9Test",
577	>	"AtomicInteger9Test",
578	>	"AtomicIntegerArray9Test",
579	>	"AtomicLong9Test",
580	>	"AtomicLongArray9Test",
581	>	"AtomicReference9Test",
582	>	"AtomicReferenceArray9Test",
583	>	"ExecutorCompletionService9Test",
584	>	"ForkJoinPool9Test",
585	>	};
586	>	addNamedTestClasses(suite, java9TestClassNames);
587	>	}
588	>
589	>	return suite;
590	>	}
591	>
592	>	/** Returns list of junit-style test method names in given class. */
593	>	public static ArrayList<String> testMethodNames(Class<?> testClass) {
594	>	Method[] methods = testClass.getDeclaredMethods();
595	>	ArrayList<String> names = new ArrayList<>(methods.length);
596	>	for (Method method : methods) {
597	>	if (method.getName().startsWith("test")
598	>	&& Modifier.isPublic(method.getModifiers())
599	>	// method.getParameterCount() requires jdk8+
600	>	&& method.getParameterTypes().length == 0) {
601	>	names.add(method.getName());
602	>	}
603	>	}
604	>	return names;
605	>	}
606	>
607	>	/**
608	>	* Returns junit-style testSuite for the given test class, but
609	>	* parameterized by passing extra data to each test.
610	>	*/
611	>	public static <ExtraData> Test parameterizedTestSuite
612	>	(Class<? extends JSR166TestCase> testClass,
613	>	Class<ExtraData> dataClass,
614	>	ExtraData data) {
615	>	try {
616	>	TestSuite suite = new TestSuite();
617	>	Constructor c =
618	>	testClass.getDeclaredConstructor(dataClass, String.class);
619	>	for (String methodName : testMethodNames(testClass))
620	>	suite.addTest((Test) c.newInstance(data, methodName));
621	>	return suite;
622	>	} catch (ReflectiveOperationException e) {
623	>	throw new AssertionError(e);
624	>	}
625	>	}
626	>
627	>	/**
628	>	* Returns junit-style testSuite for the jdk8 extension of the
629	>	* given test class, but parameterized by passing extra data to
630	>	* each test.  Uses reflection to allow compilation in jdk7.
631	>	*/
632	>	public static <ExtraData> Test jdk8ParameterizedTestSuite
633	>	(Class<? extends JSR166TestCase> testClass,
634	>	Class<ExtraData> dataClass,
635	>	ExtraData data) {
636	>	if (atLeastJava8()) {
637	>	String name = testClass.getName();
638	>	String name8 = name.replaceAll("Test$", "8Test");
639	>	if (name.equals(name8)) throw new AssertionError(name);
640	>	try {
641	>	return (Test)
642	>	Class.forName(name8)
643	>	.getMethod("testSuite", dataClass)
644	>	.invoke(null, data);
645	>	} catch (ReflectiveOperationException e) {
646	>	throw new AssertionError(e);
647	>	}
648	>	} else {
649	>	return new TestSuite();
650	>	}
651		}
652
653	+	// Delays for timing-dependent tests, in milliseconds.
654
655		public static long SHORT_DELAY_MS;
656		public static long SMALL_DELAY_MS;
657		public static long MEDIUM_DELAY_MS;
658		public static long LONG_DELAY_MS;
659
660	+	/**
661	+	* A delay significantly longer than LONG_DELAY_MS.
662	+	* Use this in a thread that is waited for via awaitTermination(Thread).
663	+	*/
664	+	public static long LONGER_DELAY_MS;
665	+
666	+	private static final long RANDOM_TIMEOUT;
667	+	private static final long RANDOM_EXPIRED_TIMEOUT;
668	+	private static final TimeUnit RANDOM_TIMEUNIT;
669	+	static {
670	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
671	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
672	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
673	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
674	+	TimeUnit[] timeUnits = TimeUnit.values();
675	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
676	+	}
677
678		/**
679	<	* Returns the shortest timed delay. This could
212	<	* be reimplemented to use for example a Property.
679	>	* Returns a timeout for use when any value at all will do.
680		*/
681	<	protected long getShortDelay() {
682	<	return 50;
681	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
682	>
683	>	/**
684	>	* Returns a timeout that means "no waiting", i.e. not positive.
685	>	*/
686	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
687	>
688	>	/**
689	>	* Returns a random non-null TimeUnit.
690	>	*/
691	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
692	>
693	>	/**
694	>	* Returns a random boolean; a "coin flip".
695	>	*/
696	>	static boolean randomBoolean() {
697	>	return ThreadLocalRandom.current().nextBoolean();
698	>	}
699	>
700	>	/**
701	>	* Returns a random element from given choices.
702	>	*/
703	>	<T> T chooseRandomly(T... choices) {
704	>	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
705		}
706
707	+	/**
708	+	* Returns the shortest timed delay. This can be scaled up for
709	+	* slow machines using the jsr166.delay.factor system property,
710	+	* or via jtreg's -timeoutFactor: flag.
711	+	* http://openjdk.java.net/jtreg/command-help.html
712	+	*/
713	+	protected long getShortDelay() {
714	+	return (long) (50 * delayFactor);
715	+	}
716
717		/**
718		* Sets delays as multiples of SHORT_DELAY.
#	Line 223 | Line 721 | public class JSR166TestCase extends Test
721		SHORT_DELAY_MS = getShortDelay();
722		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
723		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
724	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
724	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
725	>	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
726	>	}
727	>
728	>	private static final long TIMEOUT_DELAY_MS
729	>	= (long) (12.0 * Math.cbrt(delayFactor));
730	>
731	>	/**
732	>	* Returns a timeout in milliseconds to be used in tests that verify
733	>	* that operations block or time out.  We want this to be longer
734	>	* than the OS scheduling quantum, but not too long, so don't scale
735	>	* linearly with delayFactor; we use "crazy" cube root instead.
736	>	*/
737	>	static long timeoutMillis() {
738	>	return TIMEOUT_DELAY_MS;
739	>	}
740	>
741	>	/**
742	>	* Returns a new Date instance representing a time at least
743	>	* delayMillis milliseconds in the future.
744	>	*/
745	>	Date delayedDate(long delayMillis) {
746	>	// Add 1 because currentTimeMillis is known to round into the past.
747	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
748		}
749
750		/**
751		* The first exception encountered if any threadAssertXXX method fails.
752		*/
753		private final AtomicReference<Throwable> threadFailure
754	<	= new AtomicReference<Throwable>(null);
754	>	= new AtomicReference<>(null);
755
756		/**
757		* Records an exception so that it can be rethrown later in the test
#	Line 239 | Line 760 | public class JSR166TestCase extends Test
760		* the same test have no effect.
761		*/
762		public void threadRecordFailure(Throwable t) {
763	<	threadFailure.compareAndSet(null, t);
763	>	System.err.println(t);
764	>	if (threadFailure.compareAndSet(null, t))
765	>	dumpTestThreads();
766		}
767
768		public void setUp() {
769		setDelays();
770		}
771
772	+	void tearDownFail(String format, Object... args) {
773	+	String msg = toString() + ": " + String.format(format, args);
774	+	System.err.println(msg);
775	+	dumpTestThreads();
776	+	throw new AssertionError(msg);
777	+	}
778	+
779		/**
780	+	* Extra checks that get done for all test cases.
781	+	*
782		* Triggers test case failure if any thread assertions have failed,
783		* by rethrowing, in the test harness thread, any exception recorded
784		* earlier by threadRecordFailure.
785	+	*
786	+	* Triggers test case failure if interrupt status is set in the main thread.
787		*/
788		public void tearDown() throws Exception {
789	<	Throwable t = threadFailure.get();
789	>	Throwable t = threadFailure.getAndSet(null);
790		if (t != null) {
791		if (t instanceof Error)
792		throw (Error) t;
#	Line 260 | Line 794 | public class JSR166TestCase extends Test
794		throw (RuntimeException) t;
795		else if (t instanceof Exception)
796		throw (Exception) t;
797	<	else {
798	<	AssertionFailedError afe =
799	<	new AssertionFailedError(t.toString());
800	<	afe.initCause(t);
801	<	throw afe;
797	>	else
798	>	throw new AssertionError(t.toString(), t);
799	>	}
800	>
801	>	if (Thread.interrupted())
802	>	tearDownFail("interrupt status set in main thread");
803	>
804	>	checkForkJoinPoolThreadLeaks();
805	>	}
806	>
807	>	/**
808	>	* Finds missing PoolCleaners
809	>	*/
810	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
811	>	Thread[] survivors = new Thread[7];
812	>	int count = Thread.enumerate(survivors);
813	>	for (int i = 0; i < count; i++) {
814	>	Thread thread = survivors[i];
815	>	String name = thread.getName();
816	>	if (name.startsWith("ForkJoinPool-")) {
817	>	// give thread some time to terminate
818	>	thread.join(LONG_DELAY_MS);
819	>	if (thread.isAlive())
820	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
821	>	thread);
822		}
823		}
824	+
825	+	if (!ForkJoinPool.commonPool()
826	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
827	+	tearDownFail("ForkJoin common pool thread stuck");
828		}
829
830		/**
831		* Just like fail(reason), but additionally recording (using
832	<	* threadRecordFailure) any AssertionFailedError thrown, so that
833	<	* the current testcase will fail.
832	>	* threadRecordFailure) any AssertionError thrown, so that the
833	>	* current testcase will fail.
834		*/
835		public void threadFail(String reason) {
836		try {
837		fail(reason);
838	<	} catch (AssertionFailedError t) {
839	<	threadRecordFailure(t);
840	<	fail(reason);
838	>	} catch (AssertionError fail) {
839	>	threadRecordFailure(fail);
840	>	throw fail;
841		}
842		}
843
844		/**
845		* Just like assertTrue(b), but additionally recording (using
846	<	* threadRecordFailure) any AssertionFailedError thrown, so that
847	<	* the current testcase will fail.
846	>	* threadRecordFailure) any AssertionError thrown, so that the
847	>	* current testcase will fail.
848		*/
849		public void threadAssertTrue(boolean b) {
850		try {
851		assertTrue(b);
852	<	} catch (AssertionFailedError t) {
853	<	threadRecordFailure(t);
854	<	throw t;
852	>	} catch (AssertionError fail) {
853	>	threadRecordFailure(fail);
854	>	throw fail;
855		}
856		}
857
858		/**
859		* Just like assertFalse(b), but additionally recording (using
860	<	* threadRecordFailure) any AssertionFailedError thrown, so that
861	<	* the current testcase will fail.
860	>	* threadRecordFailure) any AssertionError thrown, so that the
861	>	* current testcase will fail.
862		*/
863		public void threadAssertFalse(boolean b) {
864		try {
865		assertFalse(b);
866	<	} catch (AssertionFailedError t) {
867	<	threadRecordFailure(t);
868	<	throw t;
866	>	} catch (AssertionError fail) {
867	>	threadRecordFailure(fail);
868	>	throw fail;
869		}
870		}
871
872		/**
873		* Just like assertNull(x), but additionally recording (using
874	<	* threadRecordFailure) any AssertionFailedError thrown, so that
875	<	* the current testcase will fail.
874	>	* threadRecordFailure) any AssertionError thrown, so that the
875	>	* current testcase will fail.
876		*/
877		public void threadAssertNull(Object x) {
878		try {
879		assertNull(x);
880	<	} catch (AssertionFailedError t) {
881	<	threadRecordFailure(t);
882	<	throw t;
880	>	} catch (AssertionError fail) {
881	>	threadRecordFailure(fail);
882	>	throw fail;
883		}
884		}
885
886		/**
887		* Just like assertEquals(x, y), but additionally recording (using
888	<	* threadRecordFailure) any AssertionFailedError thrown, so that
889	<	* the current testcase will fail.
888	>	* threadRecordFailure) any AssertionError thrown, so that the
889	>	* current testcase will fail.
890		*/
891		public void threadAssertEquals(long x, long y) {
892		try {
893		assertEquals(x, y);
894	<	} catch (AssertionFailedError t) {
895	<	threadRecordFailure(t);
896	<	throw t;
894	>	} catch (AssertionError fail) {
895	>	threadRecordFailure(fail);
896	>	throw fail;
897		}
898		}
899
900		/**
901		* Just like assertEquals(x, y), but additionally recording (using
902	<	* threadRecordFailure) any AssertionFailedError thrown, so that
903	<	* the current testcase will fail.
902	>	* threadRecordFailure) any AssertionError thrown, so that the
903	>	* current testcase will fail.
904		*/
905		public void threadAssertEquals(Object x, Object y) {
906		try {
907		assertEquals(x, y);
908	<	} catch (AssertionFailedError t) {
909	<	threadRecordFailure(t);
910	<	throw t;
911	<	} catch (Throwable t) {
912	<	threadUnexpectedException(t);
908	>	} catch (AssertionError fail) {
909	>	threadRecordFailure(fail);
910	>	throw fail;
911	>	} catch (Throwable fail) {
912	>	threadUnexpectedException(fail);
913		}
914		}
915
916		/**
917		* Just like assertSame(x, y), but additionally recording (using
918	<	* threadRecordFailure) any AssertionFailedError thrown, so that
919	<	* the current testcase will fail.
918	>	* threadRecordFailure) any AssertionError thrown, so that the
919	>	* current testcase will fail.
920		*/
921		public void threadAssertSame(Object x, Object y) {
922		try {
923		assertSame(x, y);
924	<	} catch (AssertionFailedError t) {
925	<	threadRecordFailure(t);
926	<	throw t;
924	>	} catch (AssertionError fail) {
925	>	threadRecordFailure(fail);
926	>	throw fail;
927		}
928		}
929
#	Line 385 | Line 943 | public class JSR166TestCase extends Test
943
944		/**
945		* Records the given exception using {@link #threadRecordFailure},
946	<	* then rethrows the exception, wrapping it in an
947	<	* AssertionFailedError if necessary.
946	>	* then rethrows the exception, wrapping it in an AssertionError
947	>	* if necessary.
948		*/
949		public void threadUnexpectedException(Throwable t) {
950		threadRecordFailure(t);
#	Line 395 | Line 953 | public class JSR166TestCase extends Test
953		throw (RuntimeException) t;
954		else if (t instanceof Error)
955		throw (Error) t;
956	<	else {
957	<	AssertionFailedError afe =
958	<	new AssertionFailedError("unexpected exception: " + t);
959	<	t.initCause(t);
960	<	throw afe;
956	>	else
957	>	throw new AssertionError("unexpected exception: " + t, t);
958	>	}
959	>
960	>	/**
961	>	* Delays, via Thread.sleep, for the given millisecond delay, but
962	>	* if the sleep is shorter than specified, may re-sleep or yield
963	>	* until time elapses.  Ensures that the given time, as measured
964	>	* by System.nanoTime(), has elapsed.
965	>	*/
966	>	static void delay(long millis) throws InterruptedException {
967	>	long nanos = millis * (1000 * 1000);
968	>	final long wakeupTime = System.nanoTime() + nanos;
969	>	do {
970	>	if (millis > 0L)
971	>	Thread.sleep(millis);
972	>	else // too short to sleep
973	>	Thread.yield();
974	>	nanos = wakeupTime - System.nanoTime();
975	>	millis = nanos / (1000 * 1000);
976	>	} while (nanos >= 0L);
977	>	}
978	>
979	>	/**
980	>	* Allows use of try-with-resources with per-test thread pools.
981	>	*/
982	>	class PoolCleaner implements AutoCloseable {
983	>	private final ExecutorService pool;
984	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
985	>	public void close() { joinPool(pool); }
986	>	}
987	>
988	>	/**
989	>	* An extension of PoolCleaner that has an action to release the pool.
990	>	*/
991	>	class PoolCleanerWithReleaser extends PoolCleaner {
992	>	private final Runnable releaser;
993	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
994	>	super(pool);
995	>	this.releaser = releaser;
996		}
997	+	public void close() {
998	+	try {
999	+	releaser.run();
1000	+	} finally {
1001	+	super.close();
1002	+	}
1003	+	}
1004	+	}
1005	+
1006	+	PoolCleaner cleaner(ExecutorService pool) {
1007	+	return new PoolCleaner(pool);
1008	+	}
1009	+
1010	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
1011	+	return new PoolCleanerWithReleaser(pool, releaser);
1012	+	}
1013	+
1014	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1015	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
1016	+	}
1017	+
1018	+	Runnable releaser(final CountDownLatch latch) {
1019	+	return new Runnable() { public void run() {
1020	+	do { latch.countDown(); }
1021	+	while (latch.getCount() > 0);
1022	+	}};
1023	+	}
1024	+
1025	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1026	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1027	+	}
1028	+
1029	+	Runnable releaser(final AtomicBoolean flag) {
1030	+	return new Runnable() { public void run() { flag.set(true); }};
1031		}
1032
1033		/**
1034		* Waits out termination of a thread pool or fails doing so.
1035		*/
1036	<	public void joinPool(ExecutorService exec) {
1036	>	void joinPool(ExecutorService pool) {
1037		try {
1038	<	exec.shutdown();
1039	<	assertTrue("ExecutorService did not terminate in a timely manner",
1040	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
1038	>	pool.shutdown();
1039	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1040	>	try {
1041	>	threadFail("ExecutorService " + pool +
1042	>	" did not terminate in a timely manner");
1043	>	} finally {
1044	>	// last resort, for the benefit of subsequent tests
1045	>	pool.shutdownNow();
1046	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1047	>	}
1048	>	}
1049		} catch (SecurityException ok) {
1050		// Allowed in case test doesn't have privs
1051	<	} catch (InterruptedException ie) {
1052	<	fail("Unexpected InterruptedException");
1051	>	} catch (InterruptedException fail) {
1052	>	threadFail("Unexpected InterruptedException");
1053	>	}
1054	>	}
1055	>
1056	>	/**
1057	>	* Like Runnable, but with the freedom to throw anything.
1058	>	* junit folks had the same idea:
1059	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1060	>	*/
1061	>	interface Action { public void run() throws Throwable; }
1062	>
1063	>	/**
1064	>	* Runs all the given actions in parallel, failing if any fail.
1065	>	* Useful for running multiple variants of tests that are
1066	>	* necessarily individually slow because they must block.
1067	>	*/
1068	>	void testInParallel(Action ... actions) {
1069	>	ExecutorService pool = Executors.newCachedThreadPool();
1070	>	try (PoolCleaner cleaner = cleaner(pool)) {
1071	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1072	>	for (final Action action : actions)
1073	>	futures.add(pool.submit(new CheckedRunnable() {
1074	>	public void realRun() throws Throwable { action.run();}}));
1075	>	for (Future<?> future : futures)
1076	>	try {
1077	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1078	>	} catch (ExecutionException ex) {
1079	>	threadUnexpectedException(ex.getCause());
1080	>	} catch (Exception ex) {
1081	>	threadUnexpectedException(ex);
1082	>	}
1083	>	}
1084	>	}
1085	>
1086	>	/** Returns true if thread info might be useful in a thread dump. */
1087	>	static boolean threadOfInterest(ThreadInfo info) {
1088	>	final String name = info.getThreadName();
1089	>	String lockName;
1090	>	if (name == null)
1091	>	return true;
1092	>	if (name.equals("Signal Dispatcher")
1093	>	|| name.equals("WedgedTestDetector"))
1094	>	return false;
1095	>	if (name.equals("Reference Handler")) {
1096	>	// Reference Handler stacktrace changed in JDK-8156500
1097	>	StackTraceElement[] stackTrace; String methodName;
1098	>	if ((stackTrace = info.getStackTrace()) != null
1099	>	&& stackTrace.length > 0
1100	>	&& (methodName = stackTrace[0].getMethodName()) != null
1101	>	&& methodName.equals("waitForReferencePendingList"))
1102	>	return false;
1103	>	// jdk8 Reference Handler stacktrace
1104	>	if ((lockName = info.getLockName()) != null
1105	>	&& lockName.startsWith("java.lang.ref"))
1106	>	return false;
1107	>	}
1108	>	if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1109	>	&& (lockName = info.getLockName()) != null
1110	>	&& lockName.startsWith("java.lang.ref"))
1111	>	return false;
1112	>	if (name.startsWith("ForkJoinPool.commonPool-worker")
1113	>	&& (lockName = info.getLockName()) != null
1114	>	&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1115	>	return false;
1116	>	return true;
1117	>	}
1118	>
1119	>	/**
1120	>	* A debugging tool to print stack traces of most threads, as jstack does.
1121	>	* Uninteresting threads are filtered out.
1122	>	*/
1123	>	static void dumpTestThreads() {
1124	>	SecurityManager sm = System.getSecurityManager();
1125	>	if (sm != null) {
1126	>	try {
1127	>	System.setSecurityManager(null);
1128	>	} catch (SecurityException giveUp) {
1129	>	return;
1130	>	}
1131	>	}
1132	>
1133	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1134	>	System.err.println("------ stacktrace dump start ------");
1135	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true))
1136	>	if (threadOfInterest(info))
1137	>	System.err.print(info);
1138	>	System.err.println("------ stacktrace dump end ------");
1139	>
1140	>	if (sm != null) System.setSecurityManager(sm);
1141	>	}
1142	>
1143	>	/**
1144	>	* Checks that thread eventually enters the expected blocked thread state.
1145	>	*/
1146	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1147	>	// always sleep at least 1 ms, with high probability avoiding
1148	>	// transitory states
1149	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1150	>	try { delay(1); }
1151	>	catch (InterruptedException fail) {
1152	>	throw new AssertionError("Unexpected InterruptedException", fail);
1153	>	}
1154	>	Thread.State s = thread.getState();
1155	>	if (s == expected)
1156	>	return;
1157	>	else if (s == Thread.State.TERMINATED)
1158	>	fail("Unexpected thread termination");
1159		}
1160	+	fail("timed out waiting for thread to enter thread state " + expected);
1161		}
1162
1163	+	/**
1164	+	* Checks that future.get times out, with the default timeout of
1165	+	* {@code timeoutMillis()}.
1166	+	*/
1167	+	void assertFutureTimesOut(Future future) {
1168	+	assertFutureTimesOut(future, timeoutMillis());
1169	+	}
1170	+
1171	+	/**
1172	+	* Checks that future.get times out, with the given millisecond timeout.
1173	+	*/
1174	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1175	+	long startTime = System.nanoTime();
1176	+	try {
1177	+	future.get(timeoutMillis, MILLISECONDS);
1178	+	shouldThrow();
1179	+	} catch (TimeoutException success) {
1180	+	} catch (Exception fail) {
1181	+	threadUnexpectedException(fail);
1182	+	} finally { future.cancel(true); }
1183	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1184	+	}
1185
1186		/**
1187		* Fails with message "should throw exception".
#	Line 434 | Line 1198 | public class JSR166TestCase extends Test
1198		}
1199
1200		/**
1201	+	* The maximum number of consecutive spurious wakeups we should
1202	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1203	+	*/
1204	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1205	+
1206	+	/**
1207		* The number of elements to place in collections, arrays, etc.
1208		*/
1209		public static final int SIZE = 20;
#	Line 458 | Line 1228 | public class JSR166TestCase extends Test
1228		public static final Integer m6  = new Integer(-6);
1229		public static final Integer m10 = new Integer(-10);
1230
461	–
1231		/**
1232		* Runs Runnable r with a security policy that permits precisely
1233		* the specified permissions.  If there is no current security
#	Line 470 | Line 1239 | public class JSR166TestCase extends Test
1239		SecurityManager sm = System.getSecurityManager();
1240		if (sm == null) {
1241		r.run();
1242	+	}
1243	+	runWithSecurityManagerWithPermissions(r, permissions);
1244	+	}
1245	+
1246	+	/**
1247	+	* Runs Runnable r with a security policy that permits precisely
1248	+	* the specified permissions.  If there is no current security
1249	+	* manager, a temporary one is set for the duration of the
1250	+	* Runnable.  We require that any security manager permit
1251	+	* getPolicy/setPolicy.
1252	+	*/
1253	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1254	+	Permission... permissions) {
1255	+	SecurityManager sm = System.getSecurityManager();
1256	+	if (sm == null) {
1257		Policy savedPolicy = Policy.getPolicy();
1258		try {
1259		Policy.setPolicy(permissivePolicy());
1260		System.setSecurityManager(new SecurityManager());
1261	<	runWithPermissions(r, permissions);
1261	>	runWithSecurityManagerWithPermissions(r, permissions);
1262		} finally {
1263		System.setSecurityManager(null);
1264		Policy.setPolicy(savedPolicy);
#	Line 522 | Line 1306 | public class JSR166TestCase extends Test
1306		return perms.implies(p);
1307		}
1308		public void refresh() {}
1309	+	public String toString() {
1310	+	List<Permission> ps = new ArrayList<>();
1311	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1312	+	ps.add(e.nextElement());
1313	+	return "AdjustablePolicy with permissions " + ps;
1314	+	}
1315		}
1316
1317		/**
#	Line 545 | Line 1335 | public class JSR166TestCase extends Test
1335
1336		/**
1337		* Sleeps until the given time has elapsed.
1338	<	* Throws AssertionFailedError if interrupted.
1338	>	* Throws AssertionError if interrupted.
1339		*/
1340	<	void sleep(long millis) {
1340	>	static void sleep(long millis) {
1341		try {
1342	<	Thread.sleep(millis);
1343	<	} catch (InterruptedException ie) {
1344	<	AssertionFailedError afe =
555	<	new AssertionFailedError("Unexpected InterruptedException");
556	<	afe.initCause(ie);
557	<	throw afe;
1342	>	delay(millis);
1343	>	} catch (InterruptedException fail) {
1344	>	throw new AssertionError("Unexpected InterruptedException", fail);
1345		}
1346		}
1347
1348		/**
1349	<	* Sleeps until the timeout has elapsed, or interrupted.
1350	<	* Does <em>NOT</em> throw InterruptedException.
1349	>	* Spin-waits up to the specified number of milliseconds for the given
1350	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1351	>	* @param waitingForGodot if non-null, an additional condition to satisfy
1352	>	*/
1353	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1354	>	Callable<Boolean> waitingForGodot) {
1355	>	for (long startTime = 0L;;) {
1356	>	switch (thread.getState()) {
1357	>	default: break;
1358	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1359	>	try {
1360	>	if (waitingForGodot == null || waitingForGodot.call())
1361	>	return;
1362	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1363	>	break;
1364	>	case TERMINATED:
1365	>	fail("Unexpected thread termination");
1366	>	}
1367	>
1368	>	if (startTime == 0L)
1369	>	startTime = System.nanoTime();
1370	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1371	>	assertTrue(thread.isAlive());
1372	>	if (waitingForGodot == null
1373	>	|| thread.getState() == Thread.State.RUNNABLE)
1374	>	fail("timed out waiting for thread to enter wait state");
1375	>	else
1376	>	fail("timed out waiting for condition, thread state="
1377	>	+ thread.getState());
1378	>	}
1379	>	Thread.yield();
1380	>	}
1381	>	}
1382	>
1383	>	/**
1384	>	* Spin-waits up to the specified number of milliseconds for the given
1385	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1386	>	*/
1387	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1388	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1389	>	}
1390	>
1391	>	/**
1392	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1393	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1394		*/
1395	<	void sleepTillInterrupted(long timeoutMillis) {
1395	>	void waitForThreadToEnterWaitState(Thread thread) {
1396	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1397	>	}
1398	>
1399	>	/**
1400	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1401	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1402	>	* and additionally satisfy the given condition.
1403	>	*/
1404	>	void waitForThreadToEnterWaitState(Thread thread,
1405	>	Callable<Boolean> waitingForGodot) {
1406	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1407	>	}
1408	>
1409	>	/**
1410	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1411	>	* be interrupted.  Clears the interrupt status before returning.
1412	>	*/
1413	>	void awaitInterrupted() {
1414	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1415	>	if (startTime == 0L)
1416	>	startTime = System.nanoTime();
1417	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1418	>	fail("timed out waiting for thread interrupt");
1419	>	Thread.yield();
1420	>	}
1421	>	}
1422	>
1423	>	/**
1424	>	* Returns the number of milliseconds since time given by
1425	>	* startNanoTime, which must have been previously returned from a
1426	>	* call to {@link System#nanoTime()}.
1427	>	*/
1428	>	static long millisElapsedSince(long startNanoTime) {
1429	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1430	>	}
1431	>
1432	>	/**
1433	>	* Checks that timed f.get() returns the expected value, and does not
1434	>	* wait for the timeout to elapse before returning.
1435	>	*/
1436	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1437	>	long startTime = System.nanoTime();
1438	>	T actual = null;
1439		try {
1440	<	Thread.sleep(timeoutMillis);
1441	<	} catch (InterruptedException wakeup) {}
1440	>	actual = f.get(timeoutMillis, MILLISECONDS);
1441	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1442	>	assertEquals(expectedValue, actual);
1443	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1444	>	throw new AssertionError("timed get did not return promptly");
1445	>	}
1446	>
1447	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1448	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1449		}
1450
1451		/**
#	Line 583 | Line 1463 | public class JSR166TestCase extends Test
1463		* to terminate (using {@link Thread#join(long)}), else interrupts
1464		* the thread (in the hope that it may terminate later) and fails.
1465		*/
1466	<	void awaitTermination(Thread t, long timeoutMillis) {
1466	>	void awaitTermination(Thread thread, long timeoutMillis) {
1467		try {
1468	<	t.join(timeoutMillis);
1469	<	} catch (InterruptedException ie) {
1470	<	threadUnexpectedException(ie);
1471	<	} finally {
1472	<	if (t.isAlive()) {
1473	<	t.interrupt();
1474	<	fail("Test timed out");
1468	>	thread.join(timeoutMillis);
1469	>	} catch (InterruptedException fail) {
1470	>	threadUnexpectedException(fail);
1471	>	}
1472	>	if (thread.getState() != Thread.State.TERMINATED) {
1473	>	String detail = String.format(
1474	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1475	>	thread, thread.getState());
1476	>	try {
1477	>	threadFail(detail);
1478	>	} finally {
1479	>	// Interrupt thread __after__ having reported its stack trace
1480	>	thread.interrupt();
1481		}
1482		}
1483		}
1484
1485	+	/**
1486	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1487	+	* terminate (using {@link Thread#join(long)}), else interrupts
1488	+	* the thread (in the hope that it may terminate later) and fails.
1489	+	*/
1490	+	void awaitTermination(Thread t) {
1491	+	awaitTermination(t, LONG_DELAY_MS);
1492	+	}
1493	+
1494		// Some convenient Runnable classes
1495
1496		public abstract class CheckedRunnable implements Runnable {
#	Line 604 | Line 1499 | public class JSR166TestCase extends Test
1499		public final void run() {
1500		try {
1501		realRun();
1502	<	} catch (Throwable t) {
1503	<	threadUnexpectedException(t);
609	<	}
610	<	}
611	<	}
612	<
613	<	public abstract class RunnableShouldThrow implements Runnable {
614	<	protected abstract void realRun() throws Throwable;
615	<
616	<	final Class<?> exceptionClass;
617	<
618	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
619	<	this.exceptionClass = exceptionClass;
620	<	}
621	<
622	<	public final void run() {
623	<	try {
624	<	realRun();
625	<	threadShouldThrow(exceptionClass.getSimpleName());
626	<	} catch (Throwable t) {
627	<	if (! exceptionClass.isInstance(t))
628	<	threadUnexpectedException(t);
1502	>	} catch (Throwable fail) {
1503	>	threadUnexpectedException(fail);
1504		}
1505		}
1506		}
#	Line 642 | Line 1517 | public class JSR166TestCase extends Test
1517		public final void run() {
1518		try {
1519		realRun();
645	–	threadShouldThrow(exceptionClass.getSimpleName());
1520		} catch (Throwable t) {
1521		if (! exceptionClass.isInstance(t))
1522		threadUnexpectedException(t);
1523	+	return;
1524		}
1525	+	threadShouldThrow(exceptionClass.getSimpleName());
1526		}
1527		}
1528
#	Line 656 | Line 1532 | public class JSR166TestCase extends Test
1532		public final void run() {
1533		try {
1534		realRun();
659	–	threadShouldThrow("InterruptedException");
1535		} catch (InterruptedException success) {
1536	<	} catch (Throwable t) {
1537	<	threadUnexpectedException(t);
1536	>	threadAssertFalse(Thread.interrupted());
1537	>	return;
1538	>	} catch (Throwable fail) {
1539	>	threadUnexpectedException(fail);
1540		}
1541	+	threadShouldThrow("InterruptedException");
1542		}
1543		}
1544
#	Line 670 | Line 1548 | public class JSR166TestCase extends Test
1548		public final T call() {
1549		try {
1550		return realCall();
1551	<	} catch (Throwable t) {
1552	<	threadUnexpectedException(t);
675	<	return null;
1551	>	} catch (Throwable fail) {
1552	>	threadUnexpectedException(fail);
1553		}
1554	<	}
678	<	}
679	<
680	<	public abstract class CheckedInterruptedCallable<T>
681	<	implements Callable<T> {
682	<	protected abstract T realCall() throws Throwable;
683	<
684	<	public final T call() {
685	<	try {
686	<	T result = realCall();
687	<	threadShouldThrow("InterruptedException");
688	<	return result;
689	<	} catch (InterruptedException success) {
690	<	} catch (Throwable t) {
691	<	threadUnexpectedException(t);
692	<	}
693	<	return null;
1554	>	throw new AssertionError("unreached");
1555		}
1556		}
1557
#	Line 705 | Line 1566 | public class JSR166TestCase extends Test
1566		public static final String TEST_STRING = "a test string";
1567
1568		public static class StringTask implements Callable<String> {
1569	<	public String call() { return TEST_STRING; }
1569	>	final String value;
1570	>	public StringTask() { this(TEST_STRING); }
1571	>	public StringTask(String value) { this.value = value; }
1572	>	public String call() { return value; }
1573		}
1574
1575		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1576		return new CheckedCallable<String>() {
1577	<	public String realCall() {
1577	>	protected String realCall() {
1578		try {
1579		latch.await();
1580		} catch (InterruptedException quittingTime) {}
#	Line 718 | Line 1582 | public class JSR166TestCase extends Test
1582		}};
1583		}
1584
1585	<	public static class NPETask implements Callable<String> {
1586	<	public String call() { throw new NullPointerException(); }
1587	<	}
1588	<
1589	<	public static class CallableOne implements Callable<Integer> {
726	<	public Integer call() { return one; }
1585	>	public Runnable countDowner(final CountDownLatch latch) {
1586	>	return new CheckedRunnable() {
1587	>	public void realRun() throws InterruptedException {
1588	>	latch.countDown();
1589	>	}};
1590		}
1591
1592	<	public class ShortRunnable extends CheckedRunnable {
1593	<	protected void realRun() throws Throwable {
1594	<	Thread.sleep(SHORT_DELAY_MS);
1592	>	class LatchAwaiter extends CheckedRunnable {
1593	>	static final int NEW = 0;
1594	>	static final int RUNNING = 1;
1595	>	static final int DONE = 2;
1596	>	final CountDownLatch latch;
1597	>	int state = NEW;
1598	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1599	>	public void realRun() throws InterruptedException {
1600	>	state = 1;
1601	>	await(latch);
1602	>	state = 2;
1603		}
1604		}
1605
1606	<	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1607	<	protected void realRun() throws InterruptedException {
737	<	Thread.sleep(SHORT_DELAY_MS);
738	<	}
1606	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1607	>	return new LatchAwaiter(latch);
1608		}
1609
1610	<	public class SmallRunnable extends CheckedRunnable {
1611	<	protected void realRun() throws Throwable {
1612	<	Thread.sleep(SMALL_DELAY_MS);
1610	>	public void await(CountDownLatch latch, long timeoutMillis) {
1611	>	boolean timedOut = false;
1612	>	try {
1613	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1614	>	} catch (Throwable fail) {
1615	>	threadUnexpectedException(fail);
1616		}
1617	+	if (timedOut)
1618	+	fail("timed out waiting for CountDownLatch for "
1619	+	+ (timeoutMillis/1000) + " sec");
1620		}
1621
1622	<	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1623	<	protected void realRun() {
749	<	try {
750	<	Thread.sleep(SMALL_DELAY_MS);
751	<	} catch (InterruptedException ok) {}
752	<	}
1622	>	public void await(CountDownLatch latch) {
1623	>	await(latch, LONG_DELAY_MS);
1624		}
1625
1626	<	public class SmallCallable extends CheckedCallable {
1627	<	protected Object realCall() throws InterruptedException {
1628	<	Thread.sleep(SMALL_DELAY_MS);
1629	<	return Boolean.TRUE;
1626	>	public void await(Semaphore semaphore) {
1627	>	boolean timedOut = false;
1628	>	try {
1629	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1630	>	} catch (Throwable fail) {
1631	>	threadUnexpectedException(fail);
1632		}
1633	+	if (timedOut)
1634	+	fail("timed out waiting for Semaphore for "
1635	+	+ (LONG_DELAY_MS/1000) + " sec");
1636		}
1637
1638	<	public class MediumRunnable extends CheckedRunnable {
1639	<	protected void realRun() throws Throwable {
1640	<	Thread.sleep(MEDIUM_DELAY_MS);
1638	>	public void await(CyclicBarrier barrier) {
1639	>	try {
1640	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1641	>	} catch (Throwable fail) {
1642	>	threadUnexpectedException(fail);
1643		}
1644		}
1645
1646	<	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1647	<	protected void realRun() throws InterruptedException {
1648	<	Thread.sleep(MEDIUM_DELAY_MS);
1649	<	}
1650	<	}
1646	>	//     /**
1647	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1648	>	//      */
1649	>	//     public void await(AtomicBoolean flag) {
1650	>	//         await(flag, LONG_DELAY_MS);
1651	>	//     }
1652	>
1653	>	//     /**
1654	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1655	>	//      */
1656	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1657	>	//         long startTime = System.nanoTime();
1658	>	//         while (!flag.get()) {
1659	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1660	>	//                 throw new AssertionError("timed out");
1661	>	//             Thread.yield();
1662	>	//         }
1663	>	//     }
1664
1665	<	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1666	<	protected void realRun() {
776	<	try {
777	<	Thread.sleep(MEDIUM_DELAY_MS);
778	<	} catch (InterruptedException ok) {}
779	<	}
1665	>	public static class NPETask implements Callable<String> {
1666	>	public String call() { throw new NullPointerException(); }
1667		}
1668
1669	<	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1670	<	protected void realRun() {
1671	<	try {
1672	<	Thread.sleep(LONG_DELAY_MS);
1673	<	} catch (InterruptedException ok) {}
1674	<	}
1669	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1670	>	return new CheckedRunnable() {
1671	>	protected void realRun() {
1672	>	try {
1673	>	delay(timeoutMillis);
1674	>	} catch (InterruptedException ok) {}
1675	>	}};
1676		}
1677
1678		/**
#	Line 796 | Line 1684 | public class JSR166TestCase extends Test
1684		}
1685		}
1686
1687	<	public static class TrackedShortRunnable implements Runnable {
1688	<	public volatile boolean done = false;
801	<	public void run() {
802	<	try {
803	<	Thread.sleep(SMALL_DELAY_MS);
804	<	done = true;
805	<	} catch (InterruptedException ok) {}
806	<	}
807	<	}
808	<
809	<	public static class TrackedMediumRunnable implements Runnable {
810	<	public volatile boolean done = false;
811	<	public void run() {
812	<	try {
813	<	Thread.sleep(MEDIUM_DELAY_MS);
814	<	done = true;
815	<	} catch (InterruptedException ok) {}
816	<	}
817	<	}
818	<
819	<	public static class TrackedLongRunnable implements Runnable {
820	<	public volatile boolean done = false;
821	<	public void run() {
822	<	try {
823	<	Thread.sleep(LONG_DELAY_MS);
824	<	done = true;
825	<	} catch (InterruptedException ok) {}
826	<	}
1687	>	public interface TrackedRunnable extends Runnable {
1688	>	boolean isDone();
1689		}
1690
1691		public static class TrackedNoOpRunnable implements Runnable {
#	Line 833 | Line 1695 | public class JSR166TestCase extends Test
1695		}
1696		}
1697
836	–	public static class TrackedCallable implements Callable {
837	–	public volatile boolean done = false;
838	–	public Object call() {
839	–	try {
840	–	Thread.sleep(SMALL_DELAY_MS);
841	–	done = true;
842	–	} catch (InterruptedException ok) {}
843	–	return Boolean.TRUE;
844	–	}
845	–	}
846	–
1698		/**
1699		* Analog of CheckedRunnable for RecursiveAction
1700		*/
1701		public abstract class CheckedRecursiveAction extends RecursiveAction {
1702		protected abstract void realCompute() throws Throwable;
1703
1704	<	public final void compute() {
1704	>	@Override protected final void compute() {
1705		try {
1706		realCompute();
1707	<	} catch (Throwable t) {
1708	<	threadUnexpectedException(t);
1707	>	} catch (Throwable fail) {
1708	>	threadUnexpectedException(fail);
1709		}
1710		}
1711		}
#	Line 865 | Line 1716 | public class JSR166TestCase extends Test
1716		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1717		protected abstract T realCompute() throws Throwable;
1718
1719	<	public final T compute() {
1719	>	@Override protected final T compute() {
1720		try {
1721		return realCompute();
1722	<	} catch (Throwable t) {
1723	<	threadUnexpectedException(t);
873	<	return null;
1722	>	} catch (Throwable fail) {
1723	>	threadUnexpectedException(fail);
1724		}
1725	+	throw new AssertionError("unreached");
1726		}
1727		}
1728
#	Line 884 | Line 1735 | public class JSR166TestCase extends Test
1735		}
1736
1737		/**
1738	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1739	<	* of throwing checked exceptions.
1738	>	* A CyclicBarrier that uses timed await and fails with
1739	>	* AssertionErrors instead of throwing checked exceptions.
1740		*/
1741	<	public class CheckedBarrier extends CyclicBarrier {
1741	>	public static class CheckedBarrier extends CyclicBarrier {
1742		public CheckedBarrier(int parties) { super(parties); }
1743
1744		public int await() {
1745		try {
1746	<	return super.await();
1747	<	} catch (Exception e) {
1748	<	AssertionFailedError afe =
1749	<	new AssertionFailedError("Unexpected exception: " + e);
1750	<	afe.initCause(e);
1751	<	throw afe;
1746	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1747	>	} catch (TimeoutException timedOut) {
1748	>	throw new AssertionError("timed out");
1749	>	} catch (Exception fail) {
1750	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1751	>	}
1752	>	}
1753	>	}
1754	>
1755	>	void checkEmpty(BlockingQueue q) {
1756	>	try {
1757	>	assertTrue(q.isEmpty());
1758	>	assertEquals(0, q.size());
1759	>	assertNull(q.peek());
1760	>	assertNull(q.poll());
1761	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1762	>	assertEquals(q.toString(), "[]");
1763	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1764	>	assertFalse(q.iterator().hasNext());
1765	>	try {
1766	>	q.element();
1767	>	shouldThrow();
1768	>	} catch (NoSuchElementException success) {}
1769	>	try {
1770	>	q.iterator().next();
1771	>	shouldThrow();
1772	>	} catch (NoSuchElementException success) {}
1773	>	try {
1774	>	q.remove();
1775	>	shouldThrow();
1776	>	} catch (NoSuchElementException success) {}
1777	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1778	>	}
1779	>
1780	>	void assertSerialEquals(Object x, Object y) {
1781	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1782	>	}
1783	>
1784	>	void assertNotSerialEquals(Object x, Object y) {
1785	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1786	>	}
1787	>
1788	>	byte[] serialBytes(Object o) {
1789	>	try {
1790	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1791	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1792	>	oos.writeObject(o);
1793	>	oos.flush();
1794	>	oos.close();
1795	>	return bos.toByteArray();
1796	>	} catch (Throwable fail) {
1797	>	threadUnexpectedException(fail);
1798	>	return new byte[0];
1799	>	}
1800	>	}
1801	>
1802	>	void assertImmutable(Object o) {
1803	>	if (o instanceof Collection) {
1804	>	assertThrows(
1805	>	UnsupportedOperationException.class,
1806	>	() -> ((Collection) o).add(null));
1807	>	}
1808	>	}
1809	>
1810	>	@SuppressWarnings("unchecked")
1811	>	<T> T serialClone(T o) {
1812	>	T clone = null;
1813	>	try {
1814	>	ObjectInputStream ois = new ObjectInputStream
1815	>	(new ByteArrayInputStream(serialBytes(o)));
1816	>	clone = (T) ois.readObject();
1817	>	} catch (Throwable fail) {
1818	>	threadUnexpectedException(fail);
1819	>	}
1820	>	if (o == clone) assertImmutable(o);
1821	>	else assertSame(o.getClass(), clone.getClass());
1822	>	return clone;
1823	>	}
1824	>
1825	>	/**
1826	>	* A version of serialClone that leaves error handling (for
1827	>	* e.g. NotSerializableException) up to the caller.
1828	>	*/
1829	>	@SuppressWarnings("unchecked")
1830	>	<T> T serialClonePossiblyFailing(T o)
1831	>	throws ReflectiveOperationException, java.io.IOException {
1832	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1833	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1834	>	oos.writeObject(o);
1835	>	oos.flush();
1836	>	oos.close();
1837	>	ObjectInputStream ois = new ObjectInputStream
1838	>	(new ByteArrayInputStream(bos.toByteArray()));
1839	>	T clone = (T) ois.readObject();
1840	>	if (o == clone) assertImmutable(o);
1841	>	else assertSame(o.getClass(), clone.getClass());
1842	>	return clone;
1843	>	}
1844	>
1845	>	/**
1846	>	* If o implements Cloneable and has a public clone method,
1847	>	* returns a clone of o, else null.
1848	>	*/
1849	>	@SuppressWarnings("unchecked")
1850	>	<T> T cloneableClone(T o) {
1851	>	if (!(o instanceof Cloneable)) return null;
1852	>	final T clone;
1853	>	try {
1854	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1855	>	} catch (NoSuchMethodException ok) {
1856	>	return null;
1857	>	} catch (ReflectiveOperationException unexpected) {
1858	>	throw new Error(unexpected);
1859	>	}
1860	>	assertNotSame(o, clone); // not 100% guaranteed by spec
1861	>	assertSame(o.getClass(), clone.getClass());
1862	>	return clone;
1863	>	}
1864	>
1865	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1866	>	Action... throwingActions) {
1867	>	for (Action throwingAction : throwingActions) {
1868	>	boolean threw = false;
1869	>	try { throwingAction.run(); }
1870	>	catch (Throwable t) {
1871	>	threw = true;
1872	>	if (!expectedExceptionClass.isInstance(t))
1873	>	throw new AssertionError(
1874	>	"Expected " + expectedExceptionClass.getName() +
1875	>	", got " + t.getClass().getName(),
1876	>	t);
1877	>	}
1878	>	if (!threw)
1879	>	shouldThrow(expectedExceptionClass.getName());
1880	>	}
1881	>	}
1882	>
1883	>	public void assertIteratorExhausted(Iterator<?> it) {
1884	>	try {
1885	>	it.next();
1886	>	shouldThrow();
1887	>	} catch (NoSuchElementException success) {}
1888	>	assertFalse(it.hasNext());
1889	>	}
1890	>
1891	>	public <T> Callable<T> callableThrowing(final Exception ex) {
1892	>	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1893	>	}
1894	>
1895	>	public Runnable runnableThrowing(final RuntimeException ex) {
1896	>	return new Runnable() { public void run() { throw ex; }};
1897	>	}
1898	>
1899	>	/** A reusable thread pool to be shared by tests. */
1900	>	static final ExecutorService cachedThreadPool =
1901	>	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1902	>	1000L, MILLISECONDS,
1903	>	new SynchronousQueue<Runnable>());
1904	>
1905	>	static <T> void shuffle(T[] array) {
1906	>	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1907	>	}
1908	>
1909	>	/**
1910	>	* Returns the same String as would be returned by {@link
1911	>	* Object#toString}, whether or not the given object's class
1912	>	* overrides toString().
1913	>	*
1914	>	* @see System#identityHashCode
1915	>	*/
1916	>	static String identityString(Object x) {
1917	>	return x.getClass().getName()
1918	>	+ "@" + Integer.toHexString(System.identityHashCode(x));
1919	>	}
1920	>
1921	>	// --- Shared assertions for Executor tests ---
1922	>
1923	>	/**
1924	>	* Returns maximum number of tasks that can be submitted to given
1925	>	* pool (with bounded queue) before saturation (when submission
1926	>	* throws RejectedExecutionException).
1927	>	*/
1928	>	static final int saturatedSize(ThreadPoolExecutor pool) {
1929	>	BlockingQueue<Runnable> q = pool.getQueue();
1930	>	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1931	>	}
1932	>
1933	>	@SuppressWarnings("FutureReturnValueIgnored")
1934	>	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1935	>	try {
1936	>	e.execute((Runnable) null);
1937	>	shouldThrow();
1938	>	} catch (NullPointerException success) {}
1939	>
1940	>	if (! (e instanceof ExecutorService)) return;
1941	>	ExecutorService es = (ExecutorService) e;
1942	>	try {
1943	>	es.submit((Runnable) null);
1944	>	shouldThrow();
1945	>	} catch (NullPointerException success) {}
1946	>	try {
1947	>	es.submit((Runnable) null, Boolean.TRUE);
1948	>	shouldThrow();
1949	>	} catch (NullPointerException success) {}
1950	>	try {
1951	>	es.submit((Callable) null);
1952	>	shouldThrow();
1953	>	} catch (NullPointerException success) {}
1954	>
1955	>	if (! (e instanceof ScheduledExecutorService)) return;
1956	>	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1957	>	try {
1958	>	ses.schedule((Runnable) null,
1959	>	randomTimeout(), randomTimeUnit());
1960	>	shouldThrow();
1961	>	} catch (NullPointerException success) {}
1962	>	try {
1963	>	ses.schedule((Callable) null,
1964	>	randomTimeout(), randomTimeUnit());
1965	>	shouldThrow();
1966	>	} catch (NullPointerException success) {}
1967	>	try {
1968	>	ses.scheduleAtFixedRate((Runnable) null,
1969	>	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1970	>	shouldThrow();
1971	>	} catch (NullPointerException success) {}
1972	>	try {
1973	>	ses.scheduleWithFixedDelay((Runnable) null,
1974	>	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1975	>	shouldThrow();
1976	>	} catch (NullPointerException success) {}
1977	>	}
1978	>
1979	>	void setRejectedExecutionHandler(
1980	>	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1981	>	p.setRejectedExecutionHandler(handler);
1982	>	assertSame(handler, p.getRejectedExecutionHandler());
1983	>	}
1984	>
1985	>	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1986	>	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1987	>	final long savedTaskCount = p.getTaskCount();
1988	>	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1989	>	final int savedQueueSize = p.getQueue().size();
1990	>	final boolean stock = (p.getClass().getClassLoader() == null);
1991	>
1992	>	Runnable r = () -> {};
1993	>	Callable<Boolean> c = () -> Boolean.TRUE;
1994	>
1995	>	class Recorder implements RejectedExecutionHandler {
1996	>	public volatile Runnable r = null;
1997	>	public volatile ThreadPoolExecutor p = null;
1998	>	public void reset() { r = null; p = null; }
1999	>	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2000	>	assertNull(this.r);
2001	>	assertNull(this.p);
2002	>	this.r = r;
2003	>	this.p = p;
2004	>	}
2005	>	}
2006	>
2007	>	// check custom handler is invoked exactly once per task
2008	>	Recorder recorder = new Recorder();
2009	>	setRejectedExecutionHandler(p, recorder);
2010	>	for (int i = 2; i--> 0; ) {
2011	>	recorder.reset();
2012	>	p.execute(r);
2013	>	if (stock && p.getClass() == ThreadPoolExecutor.class)
2014	>	assertSame(r, recorder.r);
2015	>	assertSame(p, recorder.p);
2016	>
2017	>	recorder.reset();
2018	>	assertFalse(p.submit(r).isDone());
2019	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2020	>	assertSame(p, recorder.p);
2021	>
2022	>	recorder.reset();
2023	>	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2024	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2025	>	assertSame(p, recorder.p);
2026	>
2027	>	recorder.reset();
2028	>	assertFalse(p.submit(c).isDone());
2029	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2030	>	assertSame(p, recorder.p);
2031	>
2032	>	if (p instanceof ScheduledExecutorService) {
2033	>	ScheduledExecutorService s = (ScheduledExecutorService) p;
2034	>	ScheduledFuture<?> future;
2035	>
2036	>	recorder.reset();
2037	>	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2038	>	assertFalse(future.isDone());
2039	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2040	>	assertSame(p, recorder.p);
2041	>
2042	>	recorder.reset();
2043	>	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2044	>	assertFalse(future.isDone());
2045	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2046	>	assertSame(p, recorder.p);
2047	>
2048	>	recorder.reset();
2049	>	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2050	>	assertFalse(future.isDone());
2051	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2052	>	assertSame(p, recorder.p);
2053	>
2054	>	recorder.reset();
2055	>	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2056	>	assertFalse(future.isDone());
2057	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2058	>	assertSame(p, recorder.p);
2059		}
2060		}
2061	+
2062	+	// Checking our custom handler above should be sufficient, but
2063	+	// we add some integration tests of standard handlers.
2064	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2065	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2066	+
2067	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2068	+	try {
2069	+	p.execute(setThread);
2070	+	shouldThrow();
2071	+	} catch (RejectedExecutionException success) {}
2072	+	assertNull(thread.get());
2073	+
2074	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2075	+	p.execute(setThread);
2076	+	assertNull(thread.get());
2077	+
2078	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2079	+	p.execute(setThread);
2080	+	if (p.isShutdown())
2081	+	assertNull(thread.get());
2082	+	else
2083	+	assertSame(Thread.currentThread(), thread.get());
2084	+
2085	+	setRejectedExecutionHandler(p, savedHandler);
2086	+
2087	+	// check that pool was not perturbed by handlers
2088	+	assertEquals(savedTaskCount, p.getTaskCount());
2089	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2090	+	assertEquals(savedQueueSize, p.getQueue().size());
2091	+	}
2092	+
2093	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2094	+	assertEquals(x, y);
2095	+	assertEquals(y, x);
2096	+	assertEquals(x.isEmpty(), y.isEmpty());
2097	+	assertEquals(x.size(), y.size());
2098	+	if (x instanceof List) {
2099	+	assertEquals(x.toString(), y.toString());
2100	+	}
2101	+	if (x instanceof List || x instanceof Set) {
2102	+	assertEquals(x.hashCode(), y.hashCode());
2103	+	}
2104	+	if (x instanceof List || x instanceof Deque) {
2105	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2106	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2107	+	y.toArray(new Object[0])));
2108	+	}
2109		}
2110
2111	+	/**
2112	+	* A weaker form of assertCollectionsEquals which does not insist
2113	+	* that the two collections satisfy Object#equals(Object), since
2114	+	* they may use identity semantics as Deques do.
2115	+	*/
2116	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2117	+	if (x instanceof List || x instanceof Set)
2118	+	assertCollectionsEquals(x, y);
2119	+	else {
2120	+	assertEquals(x.isEmpty(), y.isEmpty());
2121	+	assertEquals(x.size(), y.size());
2122	+	assertEquals(new HashSet(x), new HashSet(y));
2123	+	if (x instanceof Deque) {
2124	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2125	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2126	+	y.toArray(new Object[0])));
2127	+	}
2128	+	}
2129	+	}
2130		}

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