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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.64 by jsr166, Fri Oct 15 22:30:07 2010 UTC vs.
Revision 1.240 by jsr166, Tue Jan 23 22:56:37 2018 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
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.Enumeration;
70	+	import java.util.Iterator;
71	+	import java.util.List;
72	+	import java.util.NoSuchElementException;
73	+	import java.util.PropertyPermission;
74	+	import java.util.concurrent.BlockingQueue;
75	+	import java.util.concurrent.Callable;
76	+	import java.util.concurrent.CountDownLatch;
77	+	import java.util.concurrent.CyclicBarrier;
78	+	import java.util.concurrent.ExecutionException;
79	+	import java.util.concurrent.Executor;
80	+	import java.util.concurrent.Executors;
81	+	import java.util.concurrent.ExecutorService;
82	+	import java.util.concurrent.ForkJoinPool;
83	+	import java.util.concurrent.Future;
84	+	import java.util.concurrent.FutureTask;
85	+	import java.util.concurrent.RecursiveAction;
86	+	import java.util.concurrent.RecursiveTask;
87	+	import java.util.concurrent.RejectedExecutionException;
88	+	import java.util.concurrent.RejectedExecutionHandler;
89	+	import java.util.concurrent.Semaphore;
90	+	import java.util.concurrent.ScheduledExecutorService;
91	+	import java.util.concurrent.ScheduledFuture;
92	+	import java.util.concurrent.SynchronousQueue;
93	+	import java.util.concurrent.ThreadFactory;
94	+	import java.util.concurrent.ThreadLocalRandom;
95	+	import java.util.concurrent.ThreadPoolExecutor;
96	+	import java.util.concurrent.TimeUnit;
97	+	import java.util.concurrent.TimeoutException;
98	+	import java.util.concurrent.atomic.AtomicBoolean;
99	+	import java.util.concurrent.atomic.AtomicReference;
100	+	import java.util.regex.Pattern;
101	+
102	+	import junit.framework.Test;
103	+	import junit.framework.TestCase;
104	+	import junit.framework.TestResult;
105	+	import junit.framework.TestSuite;
106
107		/**
108		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 29 | Line 114 | import java.security.SecurityPermission;
114		*
115		* <ol>
116		*
117	<	* <li> All assertions in code running in generated threads must use
117	>	* <li>All assertions in code running in generated threads must use
118		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
119		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
120		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
121		* particularly recommended) for other code to use these forms too.
122		* Only the most typically used JUnit assertion methods are defined
123	<	* this way, but enough to live with.</li>
123	>	* this way, but enough to live with.
124		*
125	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
125	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
126		* to invoke {@code super.setUp} and {@code super.tearDown} within
127		* them. These methods are used to clear and check for thread
128	<	* assertion failures.</li>
128	>	* assertion failures.
129		*
130		* <li>All delays and timeouts must use one of the constants {@code
131		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 136 | import java.security.SecurityPermission;
136		* is always discriminable as larger than SHORT and smaller than
137		* MEDIUM.  And so on. These constants are set to conservative values,
138		* but even so, if there is ever any doubt, they can all be increased
139	<	* in one spot to rerun tests on slower platforms.</li>
139	>	* in one spot to rerun tests on slower platforms.
140		*
141	<	* <li> All threads generated must be joined inside each test case
141	>	* <li>All threads generated must be joined inside each test case
142		* method (or {@code fail} to do so) before returning from the
143		* method. The {@code joinPool} method can be used to do this when
144	<	* using Executors.</li>
144	>	* using Executors.
145		*
146		* </ol>
147		*
148	<	* <p> <b>Other notes</b>
148	>	* <p><b>Other notes</b>
149		* <ul>
150		*
151	<	* <li> Usually, there is one testcase method per JSR166 method
151	>	* <li>Usually, there is one testcase method per JSR166 method
152		* covering "normal" operation, and then as many exception-testing
153		* methods as there are exceptions the method can throw. Sometimes
154		* there are multiple tests per JSR166 method when the different
155		* "normal" behaviors differ significantly. And sometimes testcases
156	<	* cover multiple methods when they cannot be tested in
72	<	* isolation.</li>
156	>	* cover multiple methods when they cannot be tested in isolation.
157		*
158	<	* <li> The documentation style for testcases is to provide as javadoc
158	>	* <li>The documentation style for testcases is to provide as javadoc
159		* a simple sentence or two describing the property that the testcase
160		* method purports to test. The javadocs do not say anything about how
161	<	* the property is tested. To find out, read the code.</li>
161	>	* the property is tested. To find out, read the code.
162		*
163	<	* <li> These tests are "conformance tests", and do not attempt to
163	>	* <li>These tests are "conformance tests", and do not attempt to
164		* test throughput, latency, scalability or other performance factors
165		* (see the separate "jtreg" tests for a set intended to check these
166		* for the most central aspects of functionality.) So, most tests use
167		* the smallest sensible numbers of threads, collection sizes, etc
168	<	* needed to check basic conformance.</li>
168	>	* needed to check basic conformance.
169		*
170		* <li>The test classes currently do not declare inclusion in
171		* any particular package to simplify things for people integrating
172	<	* them in TCK test suites.</li>
172	>	* them in TCK test suites.
173		*
174	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
175	<	* runs all JSR166 unit tests.</li>
174	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
175	>	* runs all JSR166 unit tests.
176		*
177		* </ul>
178		*/
#	Line 100 | Line 184 | public class JSR166TestCase extends Test
184		Boolean.getBoolean("jsr166.expensiveTests");
185
186		/**
187	+	* If true, also run tests that are not part of the official tck
188	+	* because they test unspecified implementation details.
189	+	*/
190	+	protected static final boolean testImplementationDetails =
191	+	Boolean.getBoolean("jsr166.testImplementationDetails");
192	+
193	+	/**
194		* If true, report on stdout all "slow" tests, that is, ones that
195		* take more than profileThreshold milliseconds to execute.
196		*/
#	Line 113 | Line 204 | public class JSR166TestCase extends Test
204		private static final long profileThreshold =
205		Long.getLong("jsr166.profileThreshold", 100);
206
207	+	/**
208	+	* The number of repetitions per test (for tickling rare bugs).
209	+	*/
210	+	private static final int runsPerTest =
211	+	Integer.getInteger("jsr166.runsPerTest", 1);
212	+
213	+	/**
214	+	* The number of repetitions of the test suite (for finding leaks?).
215	+	*/
216	+	private static final int suiteRuns =
217	+	Integer.getInteger("jsr166.suiteRuns", 1);
218	+
219	+	/**
220	+	* Returns the value of the system property, or NaN if not defined.
221	+	*/
222	+	private static float systemPropertyValue(String name) {
223	+	String floatString = System.getProperty(name);
224	+	if (floatString == null)
225	+	return Float.NaN;
226	+	try {
227	+	return Float.parseFloat(floatString);
228	+	} catch (NumberFormatException ex) {
229	+	throw new IllegalArgumentException(
230	+	String.format("Bad float value in system property %s=%s",
231	+	name, floatString));
232	+	}
233	+	}
234	+
235	+	/**
236	+	* The scaling factor to apply to standard delays used in tests.
237	+	* May be initialized from any of:
238	+	* - the "jsr166.delay.factor" system property
239	+	* - the "test.timeout.factor" system property (as used by jtreg)
240	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
241	+	* - hard-coded fuzz factor when using a known slowpoke VM
242	+	*/
243	+	private static final float delayFactor = delayFactor();
244	+
245	+	private static float delayFactor() {
246	+	float x;
247	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
248	+	return x;
249	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
250	+	return x;
251	+	String prop = System.getProperty("java.vm.version");
252	+	if (prop != null && prop.matches(".*debug.*"))
253	+	return 4.0f; // How much slower is fastdebug than product?!
254	+	return 1.0f;
255	+	}
256	+
257	+	public JSR166TestCase() { super(); }
258	+	public JSR166TestCase(String name) { super(name); }
259	+
260	+	/**
261	+	* A filter for tests to run, matching strings of the form
262	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
263	+	* Usefully combined with jsr166.runsPerTest.
264	+	*/
265	+	private static final Pattern methodFilter = methodFilter();
266	+
267	+	private static Pattern methodFilter() {
268	+	String regex = System.getProperty("jsr166.methodFilter");
269	+	return (regex == null) ? null : Pattern.compile(regex);
270	+	}
271	+
272	+	// Instrumentation to debug very rare, but very annoying hung test runs.
273	+	static volatile TestCase currentTestCase;
274	+	// static volatile int currentRun = 0;
275	+	static {
276	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
277	+	// Avoid spurious reports with enormous runsPerTest.
278	+	// A single test case run should never take more than 1 second.
279	+	// But let's cap it at the high end too ...
280	+	final int timeoutMinutes =
281	+	Math.min(15, Math.max(runsPerTest / 60, 1));
282	+	for (TestCase lastTestCase = currentTestCase;;) {
283	+	try { MINUTES.sleep(timeoutMinutes); }
284	+	catch (InterruptedException unexpected) { break; }
285	+	if (lastTestCase == currentTestCase) {
286	+	System.err.printf(
287	+	"Looks like we're stuck running test: %s%n",
288	+	lastTestCase);
289	+	//                     System.err.printf(
290	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
291	+	//                         lastTestCase, currentRun, runsPerTest);
292	+	//                     System.err.println("availableProcessors=" +
293	+	//                         Runtime.getRuntime().availableProcessors());
294	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
295	+	dumpTestThreads();
296	+	// one stack dump is probably enough; more would be spam
297	+	break;
298	+	}
299	+	lastTestCase = currentTestCase;
300	+	}}};
301	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
302	+	thread.setDaemon(true);
303	+	thread.start();
304	+	}
305	+
306	+	//     public static String cpuModel() {
307	+	//         try {
308	+	//             java.util.regex.Matcher matcher
309	+	//               = Pattern.compile("model name\\s*: (.*)")
310	+	//                 .matcher(new String(
311	+	//                     java.nio.file.Files.readAllBytes(
312	+	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
313	+	//             matcher.find();
314	+	//             return matcher.group(1);
315	+	//         } catch (Exception ex) { return null; }
316	+	//     }
317	+
318	+	public void runBare() throws Throwable {
319	+	currentTestCase = this;
320	+	if (methodFilter == null
321	+	|| methodFilter.matcher(toString()).find())
322	+	super.runBare();
323	+	}
324	+
325		protected void runTest() throws Throwable {
326	<	if (profileTests)
327	<	runTestProfiled();
328	<	else
329	<	super.runTest();
326	>	for (int i = 0; i < runsPerTest; i++) {
327	>	// currentRun = i;
328	>	if (profileTests)
329	>	runTestProfiled();
330	>	else
331	>	super.runTest();
332	>	}
333		}
334
335		protected void runTestProfiled() throws Throwable {
336	<	long t0 = System.nanoTime();
337	<	try {
336	>	for (int i = 0; i < 2; i++) {
337	>	long startTime = System.nanoTime();
338		super.runTest();
339	<	} finally {
340	<	long elapsedMillis =
341	<	(System.nanoTime() - t0) / (1000L * 1000L);
342	<	if (elapsedMillis >= profileThreshold)
339	>	long elapsedMillis = millisElapsedSince(startTime);
340	>	if (elapsedMillis < profileThreshold)
341	>	break;
342	>	// Never report first run of any test; treat it as a
343	>	// warmup run, notably to trigger all needed classloading,
344	>	if (i > 0)
345		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
346		}
347		}
348
349		/**
350	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
350	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
351		*/
352		public static void main(String[] args) {
353	+	main(suite(), args);
354	+	}
355	+
356	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
357	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
358	+	long runTime;
359	+	public void startTest(Test test) {}
360	+	protected void printHeader(long runTime) {
361	+	this.runTime = runTime; // defer printing for later
362	+	}
363	+	protected void printFooter(TestResult result) {
364	+	if (result.wasSuccessful()) {
365	+	getWriter().println("OK (" + result.runCount() + " tests)"
366	+	+ "  Time: " + elapsedTimeAsString(runTime));
367	+	} else {
368	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
369	+	super.printFooter(result);
370	+	}
371	+	}
372	+	}
373	+
374	+	/**
375	+	* Returns a TestRunner that doesn't bother with unnecessary
376	+	* fluff, like printing a "." for each test case.
377	+	*/
378	+	static junit.textui.TestRunner newPithyTestRunner() {
379	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
380	+	runner.setPrinter(new PithyResultPrinter(System.out));
381	+	return runner;
382	+	}
383	+
384	+	/**
385	+	* Runs all unit tests in the given test suite.
386	+	* Actual behavior influenced by jsr166.* system properties.
387	+	*/
388	+	static void main(Test suite, String[] args) {
389		if (useSecurityManager) {
390		System.err.println("Setting a permissive security manager");
391		Policy.setPolicy(permissivePolicy());
392		System.setSecurityManager(new SecurityManager());
393		}
394	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
395	<
396	<	Test s = suite();
397	<	for (int i = 0; i < iters; ++i) {
148	<	junit.textui.TestRunner.run(s);
394	>	for (int i = 0; i < suiteRuns; i++) {
395	>	TestResult result = newPithyTestRunner().doRun(suite);
396	>	if (!result.wasSuccessful())
397	>	System.exit(1);
398		System.gc();
399		System.runFinalization();
400		}
152	–	System.exit(0);
401		}
402
403		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 165 | Line 413 | public class JSR166TestCase extends Test
413		return suite;
414		}
415
416	+	public static void addNamedTestClasses(TestSuite suite,
417	+	String... testClassNames) {
418	+	for (String testClassName : testClassNames) {
419	+	try {
420	+	Class<?> testClass = Class.forName(testClassName);
421	+	Method m = testClass.getDeclaredMethod("suite",
422	+	new Class<?>[0]);
423	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
424	+	} catch (Exception e) {
425	+	throw new Error("Missing test class", e);
426	+	}
427	+	}
428	+	}
429	+
430	+	public static final double JAVA_CLASS_VERSION;
431	+	public static final String JAVA_SPECIFICATION_VERSION;
432	+	static {
433	+	try {
434	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
435	+	new java.security.PrivilegedAction<Double>() {
436	+	public Double run() {
437	+	return Double.valueOf(System.getProperty("java.class.version"));}});
438	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
439	+	new java.security.PrivilegedAction<String>() {
440	+	public String run() {
441	+	return System.getProperty("java.specification.version");}});
442	+	} catch (Throwable t) {
443	+	throw new Error(t);
444	+	}
445	+	}
446	+
447	+	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
448	+	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
449	+	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
450	+	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
451	+	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
452	+
453		/**
454		* Collects all JSR166 unit tests as one suite.
455		*/
456		public static Test suite() {
457	<	return newTestSuite(
457	>	// Java7+ test classes
458	>	TestSuite suite = newTestSuite(
459		ForkJoinPoolTest.suite(),
460		ForkJoinTaskTest.suite(),
461		RecursiveActionTest.suite(),
#	Line 183 | Line 469 | public class JSR166TestCase extends Test
469		AbstractQueuedLongSynchronizerTest.suite(),
470		ArrayBlockingQueueTest.suite(),
471		ArrayDequeTest.suite(),
472	+	ArrayListTest.suite(),
473		AtomicBooleanTest.suite(),
474		AtomicIntegerArrayTest.suite(),
475		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 205 | Line 492 | public class JSR166TestCase extends Test
492		CopyOnWriteArrayListTest.suite(),
493		CopyOnWriteArraySetTest.suite(),
494		CountDownLatchTest.suite(),
495	+	CountedCompleterTest.suite(),
496		CyclicBarrierTest.suite(),
497		DelayQueueTest.suite(),
498		EntryTest.suite(),
#	Line 233 | Line 521 | public class JSR166TestCase extends Test
521		TreeMapTest.suite(),
522		TreeSetTest.suite(),
523		TreeSubMapTest.suite(),
524	<	TreeSubSetTest.suite());
524	>	TreeSubSetTest.suite(),
525	>	VectorTest.suite());
526	>
527	>	// Java8+ test classes
528	>	if (atLeastJava8()) {
529	>	String[] java8TestClassNames = {
530	>	"ArrayDeque8Test",
531	>	"Atomic8Test",
532	>	"CompletableFutureTest",
533	>	"ConcurrentHashMap8Test",
534	>	"CountedCompleter8Test",
535	>	"DoubleAccumulatorTest",
536	>	"DoubleAdderTest",
537	>	"ForkJoinPool8Test",
538	>	"ForkJoinTask8Test",
539	>	"HashMapTest",
540	>	"LinkedBlockingDeque8Test",
541	>	"LinkedBlockingQueue8Test",
542	>	"LongAccumulatorTest",
543	>	"LongAdderTest",
544	>	"SplittableRandomTest",
545	>	"StampedLockTest",
546	>	"SubmissionPublisherTest",
547	>	"ThreadLocalRandom8Test",
548	>	"TimeUnit8Test",
549	>	};
550	>	addNamedTestClasses(suite, java8TestClassNames);
551	>	}
552	>
553	>	// Java9+ test classes
554	>	if (atLeastJava9()) {
555	>	String[] java9TestClassNames = {
556	>	"AtomicBoolean9Test",
557	>	"AtomicInteger9Test",
558	>	"AtomicIntegerArray9Test",
559	>	"AtomicLong9Test",
560	>	"AtomicLongArray9Test",
561	>	"AtomicReference9Test",
562	>	"AtomicReferenceArray9Test",
563	>	"ExecutorCompletionService9Test",
564	>	"ForkJoinPool9Test",
565	>	};
566	>	addNamedTestClasses(suite, java9TestClassNames);
567	>	}
568	>
569	>	return suite;
570	>	}
571	>
572	>	/** Returns list of junit-style test method names in given class. */
573	>	public static ArrayList<String> testMethodNames(Class<?> testClass) {
574	>	Method[] methods = testClass.getDeclaredMethods();
575	>	ArrayList<String> names = new ArrayList<>(methods.length);
576	>	for (Method method : methods) {
577	>	if (method.getName().startsWith("test")
578	>	&& Modifier.isPublic(method.getModifiers())
579	>	// method.getParameterCount() requires jdk8+
580	>	&& method.getParameterTypes().length == 0) {
581	>	names.add(method.getName());
582	>	}
583	>	}
584	>	return names;
585	>	}
586	>
587	>	/**
588	>	* Returns junit-style testSuite for the given test class, but
589	>	* parameterized by passing extra data to each test.
590	>	*/
591	>	public static <ExtraData> Test parameterizedTestSuite
592	>	(Class<? extends JSR166TestCase> testClass,
593	>	Class<ExtraData> dataClass,
594	>	ExtraData data) {
595	>	try {
596	>	TestSuite suite = new TestSuite();
597	>	Constructor c =
598	>	testClass.getDeclaredConstructor(dataClass, String.class);
599	>	for (String methodName : testMethodNames(testClass))
600	>	suite.addTest((Test) c.newInstance(data, methodName));
601	>	return suite;
602	>	} catch (Exception e) {
603	>	throw new Error(e);
604	>	}
605	>	}
606	>
607	>	/**
608	>	* Returns junit-style testSuite for the jdk8 extension of the
609	>	* given test class, but parameterized by passing extra data to
610	>	* each test.  Uses reflection to allow compilation in jdk7.
611	>	*/
612	>	public static <ExtraData> Test jdk8ParameterizedTestSuite
613	>	(Class<? extends JSR166TestCase> testClass,
614	>	Class<ExtraData> dataClass,
615	>	ExtraData data) {
616	>	if (atLeastJava8()) {
617	>	String name = testClass.getName();
618	>	String name8 = name.replaceAll("Test$", "8Test");
619	>	if (name.equals(name8)) throw new Error(name);
620	>	try {
621	>	return (Test)
622	>	Class.forName(name8)
623	>	.getMethod("testSuite", new Class[] { dataClass })
624	>	.invoke(null, data);
625	>	} catch (Exception e) {
626	>	throw new Error(e);
627	>	}
628	>	} else {
629	>	return new TestSuite();
630	>	}
631		}
632
633	+	// Delays for timing-dependent tests, in milliseconds.
634
635		public static long SHORT_DELAY_MS;
636		public static long SMALL_DELAY_MS;
637		public static long MEDIUM_DELAY_MS;
638		public static long LONG_DELAY_MS;
639
640	+	private static final long RANDOM_TIMEOUT;
641	+	private static final long RANDOM_EXPIRED_TIMEOUT;
642	+	private static final TimeUnit RANDOM_TIMEUNIT;
643	+	static {
644	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
645	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
646	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
647	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
648	+	TimeUnit[] timeUnits = TimeUnit.values();
649	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
650	+	}
651	+
652	+	/**
653	+	* Returns a timeout for use when any value at all will do.
654	+	*/
655	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
656	+
657	+	/**
658	+	* Returns a timeout that means "no waiting", i.e. not positive.
659	+	*/
660	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
661	+
662	+	/**
663	+	* Returns a random non-null TimeUnit.
664	+	*/
665	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
666
667		/**
668	<	* Returns the shortest timed delay. This could
669	<	* be reimplemented to use for example a Property.
668	>	* Returns the shortest timed delay. This can be scaled up for
669	>	* slow machines using the jsr166.delay.factor system property,
670	>	* or via jtreg's -timeoutFactor: flag.
671	>	* http://openjdk.java.net/jtreg/command-help.html
672		*/
673		protected long getShortDelay() {
674	<	return 50;
674	>	return (long) (50 * delayFactor);
675		}
676
254	–
677		/**
678		* Sets delays as multiples of SHORT_DELAY.
679		*/
#	Line 259 | Line 681 | public class JSR166TestCase extends Test
681		SHORT_DELAY_MS = getShortDelay();
682		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
683		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
684	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
684	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
685	>	}
686	>
687	>	private static final long TIMEOUT_DELAY_MS
688	>	= (long) (12.0 * Math.cbrt(delayFactor));
689	>
690	>	/**
691	>	* Returns a timeout in milliseconds to be used in tests that verify
692	>	* that operations block or time out.  We want this to be longer
693	>	* than the OS scheduling quantum, but not too long, so don't scale
694	>	* linearly with delayFactor; we use "crazy" cube root instead.
695	>	*/
696	>	static long timeoutMillis() {
697	>	return TIMEOUT_DELAY_MS;
698	>	}
699	>
700	>	/**
701	>	* Returns a new Date instance representing a time at least
702	>	* delayMillis milliseconds in the future.
703	>	*/
704	>	Date delayedDate(long delayMillis) {
705	>	// Add 1 because currentTimeMillis is known to round into the past.
706	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
707		}
708
709		/**
710		* The first exception encountered if any threadAssertXXX method fails.
711		*/
712		private final AtomicReference<Throwable> threadFailure
713	<	= new AtomicReference<Throwable>(null);
713	>	= new AtomicReference<>(null);
714
715		/**
716		* Records an exception so that it can be rethrown later in the test
#	Line 275 | Line 719 | public class JSR166TestCase extends Test
719		* the same test have no effect.
720		*/
721		public void threadRecordFailure(Throwable t) {
722	+	System.err.println(t);
723	+	dumpTestThreads();
724		threadFailure.compareAndSet(null, t);
725		}
726
#	Line 282 | Line 728 | public class JSR166TestCase extends Test
728		setDelays();
729		}
730
731	+	void tearDownFail(String format, Object... args) {
732	+	String msg = toString() + ": " + String.format(format, args);
733	+	System.err.println(msg);
734	+	dumpTestThreads();
735	+	throw new AssertionError(msg);
736	+	}
737	+
738		/**
739	+	* Extra checks that get done for all test cases.
740	+	*
741		* Triggers test case failure if any thread assertions have failed,
742		* by rethrowing, in the test harness thread, any exception recorded
743		* earlier by threadRecordFailure.
744	+	*
745	+	* Triggers test case failure if interrupt status is set in the main thread.
746		*/
747		public void tearDown() throws Exception {
748	<	Throwable t = threadFailure.get();
748	>	Throwable t = threadFailure.getAndSet(null);
749		if (t != null) {
750		if (t instanceof Error)
751		throw (Error) t;
#	Line 296 | Line 753 | public class JSR166TestCase extends Test
753		throw (RuntimeException) t;
754		else if (t instanceof Exception)
755		throw (Exception) t;
756	<	else {
757	<	AssertionFailedError afe =
758	<	new AssertionFailedError(t.toString());
759	<	afe.initCause(t);
760	<	throw afe;
756	>	else
757	>	throw new AssertionError(t.toString(), t);
758	>	}
759	>
760	>	if (Thread.interrupted())
761	>	tearDownFail("interrupt status set in main thread");
762	>
763	>	checkForkJoinPoolThreadLeaks();
764	>	}
765	>
766	>	/**
767	>	* Finds missing PoolCleaners
768	>	*/
769	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
770	>	Thread[] survivors = new Thread[7];
771	>	int count = Thread.enumerate(survivors);
772	>	for (int i = 0; i < count; i++) {
773	>	Thread thread = survivors[i];
774	>	String name = thread.getName();
775	>	if (name.startsWith("ForkJoinPool-")) {
776	>	// give thread some time to terminate
777	>	thread.join(LONG_DELAY_MS);
778	>	if (thread.isAlive())
779	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
780	>	thread);
781		}
782		}
783	+
784	+	if (!ForkJoinPool.commonPool()
785	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
786	+	tearDownFail("ForkJoin common pool thread stuck");
787		}
788
789		/**
790		* Just like fail(reason), but additionally recording (using
791	<	* threadRecordFailure) any AssertionFailedError thrown, so that
792	<	* the current testcase will fail.
791	>	* threadRecordFailure) any AssertionError thrown, so that the
792	>	* current testcase will fail.
793		*/
794		public void threadFail(String reason) {
795		try {
796		fail(reason);
797	<	} catch (AssertionFailedError t) {
798	<	threadRecordFailure(t);
799	<	fail(reason);
797	>	} catch (AssertionError fail) {
798	>	threadRecordFailure(fail);
799	>	throw fail;
800		}
801		}
802
803		/**
804		* Just like assertTrue(b), but additionally recording (using
805	<	* threadRecordFailure) any AssertionFailedError thrown, so that
806	<	* the current testcase will fail.
805	>	* threadRecordFailure) any AssertionError thrown, so that the
806	>	* current testcase will fail.
807		*/
808		public void threadAssertTrue(boolean b) {
809		try {
810		assertTrue(b);
811	<	} catch (AssertionFailedError t) {
812	<	threadRecordFailure(t);
813	<	throw t;
811	>	} catch (AssertionError fail) {
812	>	threadRecordFailure(fail);
813	>	throw fail;
814		}
815		}
816
817		/**
818		* Just like assertFalse(b), but additionally recording (using
819	<	* threadRecordFailure) any AssertionFailedError thrown, so that
820	<	* the current testcase will fail.
819	>	* threadRecordFailure) any AssertionError thrown, so that the
820	>	* current testcase will fail.
821		*/
822		public void threadAssertFalse(boolean b) {
823		try {
824		assertFalse(b);
825	<	} catch (AssertionFailedError t) {
826	<	threadRecordFailure(t);
827	<	throw t;
825	>	} catch (AssertionError fail) {
826	>	threadRecordFailure(fail);
827	>	throw fail;
828		}
829		}
830
831		/**
832		* Just like assertNull(x), but additionally recording (using
833	<	* threadRecordFailure) any AssertionFailedError thrown, so that
834	<	* the current testcase will fail.
833	>	* threadRecordFailure) any AssertionError thrown, so that the
834	>	* current testcase will fail.
835		*/
836		public void threadAssertNull(Object x) {
837		try {
838		assertNull(x);
839	<	} catch (AssertionFailedError t) {
840	<	threadRecordFailure(t);
841	<	throw t;
839	>	} catch (AssertionError fail) {
840	>	threadRecordFailure(fail);
841	>	throw fail;
842		}
843		}
844
845		/**
846		* Just like assertEquals(x, y), but additionally recording (using
847	<	* threadRecordFailure) any AssertionFailedError thrown, so that
848	<	* the current testcase will fail.
847	>	* threadRecordFailure) any AssertionError thrown, so that the
848	>	* current testcase will fail.
849		*/
850		public void threadAssertEquals(long x, long y) {
851		try {
852		assertEquals(x, y);
853	<	} catch (AssertionFailedError t) {
854	<	threadRecordFailure(t);
855	<	throw t;
853	>	} catch (AssertionError fail) {
854	>	threadRecordFailure(fail);
855	>	throw fail;
856		}
857		}
858
859		/**
860		* Just like assertEquals(x, y), but additionally recording (using
861	<	* threadRecordFailure) any AssertionFailedError thrown, so that
862	<	* the current testcase will fail.
861	>	* threadRecordFailure) any AssertionError thrown, so that the
862	>	* current testcase will fail.
863		*/
864		public void threadAssertEquals(Object x, Object y) {
865		try {
866		assertEquals(x, y);
867	<	} catch (AssertionFailedError t) {
868	<	threadRecordFailure(t);
869	<	throw t;
870	<	} catch (Throwable t) {
871	<	threadUnexpectedException(t);
867	>	} catch (AssertionError fail) {
868	>	threadRecordFailure(fail);
869	>	throw fail;
870	>	} catch (Throwable fail) {
871	>	threadUnexpectedException(fail);
872		}
873		}
874
875		/**
876		* Just like assertSame(x, y), but additionally recording (using
877	<	* threadRecordFailure) any AssertionFailedError thrown, so that
878	<	* the current testcase will fail.
877	>	* threadRecordFailure) any AssertionError thrown, so that the
878	>	* current testcase will fail.
879		*/
880		public void threadAssertSame(Object x, Object y) {
881		try {
882		assertSame(x, y);
883	<	} catch (AssertionFailedError t) {
884	<	threadRecordFailure(t);
885	<	throw t;
883	>	} catch (AssertionError fail) {
884	>	threadRecordFailure(fail);
885	>	throw fail;
886		}
887		}
888
#	Line 421 | Line 902 | public class JSR166TestCase extends Test
902
903		/**
904		* Records the given exception using {@link #threadRecordFailure},
905	<	* then rethrows the exception, wrapping it in an
906	<	* AssertionFailedError if necessary.
905	>	* then rethrows the exception, wrapping it in an AssertionError
906	>	* if necessary.
907		*/
908		public void threadUnexpectedException(Throwable t) {
909		threadRecordFailure(t);
#	Line 431 | Line 912 | public class JSR166TestCase extends Test
912		throw (RuntimeException) t;
913		else if (t instanceof Error)
914		throw (Error) t;
915	<	else {
916	<	AssertionFailedError afe =
917	<	new AssertionFailedError("unexpected exception: " + t);
918	<	t.initCause(t);
919	<	throw afe;
915	>	else
916	>	throw new AssertionError("unexpected exception: " + t, t);
917	>	}
918	>
919	>	/**
920	>	* Delays, via Thread.sleep, for the given millisecond delay, but
921	>	* if the sleep is shorter than specified, may re-sleep or yield
922	>	* until time elapses.  Ensures that the given time, as measured
923	>	* by System.nanoTime(), has elapsed.
924	>	*/
925	>	static void delay(long millis) throws InterruptedException {
926	>	long nanos = millis * (1000 * 1000);
927	>	final long wakeupTime = System.nanoTime() + nanos;
928	>	do {
929	>	if (millis > 0L)
930	>	Thread.sleep(millis);
931	>	else // too short to sleep
932	>	Thread.yield();
933	>	nanos = wakeupTime - System.nanoTime();
934	>	millis = nanos / (1000 * 1000);
935	>	} while (nanos >= 0L);
936	>	}
937	>
938	>	/**
939	>	* Allows use of try-with-resources with per-test thread pools.
940	>	*/
941	>	class PoolCleaner implements AutoCloseable {
942	>	private final ExecutorService pool;
943	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
944	>	public void close() { joinPool(pool); }
945	>	}
946	>
947	>	/**
948	>	* An extension of PoolCleaner that has an action to release the pool.
949	>	*/
950	>	class PoolCleanerWithReleaser extends PoolCleaner {
951	>	private final Runnable releaser;
952	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
953	>	super(pool);
954	>	this.releaser = releaser;
955	>	}
956	>	public void close() {
957	>	try {
958	>	releaser.run();
959	>	} finally {
960	>	super.close();
961	>	}
962		}
963		}
964
965	+	PoolCleaner cleaner(ExecutorService pool) {
966	+	return new PoolCleaner(pool);
967	+	}
968	+
969	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
970	+	return new PoolCleanerWithReleaser(pool, releaser);
971	+	}
972	+
973	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
974	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
975	+	}
976	+
977	+	Runnable releaser(final CountDownLatch latch) {
978	+	return new Runnable() { public void run() {
979	+	do { latch.countDown(); }
980	+	while (latch.getCount() > 0);
981	+	}};
982	+	}
983	+
984	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
985	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
986	+	}
987	+
988	+	Runnable releaser(final AtomicBoolean flag) {
989	+	return new Runnable() { public void run() { flag.set(true); }};
990	+	}
991	+
992		/**
993		* Waits out termination of a thread pool or fails doing so.
994		*/
995	<	public void joinPool(ExecutorService exec) {
995	>	void joinPool(ExecutorService pool) {
996		try {
997	<	exec.shutdown();
998	<	assertTrue("ExecutorService did not terminate in a timely manner",
999	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
997	>	pool.shutdown();
998	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
999	>	try {
1000	>	threadFail("ExecutorService " + pool +
1001	>	" did not terminate in a timely manner");
1002	>	} finally {
1003	>	// last resort, for the benefit of subsequent tests
1004	>	pool.shutdownNow();
1005	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1006	>	}
1007	>	}
1008		} catch (SecurityException ok) {
1009		// Allowed in case test doesn't have privs
1010	<	} catch (InterruptedException ie) {
1011	<	fail("Unexpected InterruptedException");
1010	>	} catch (InterruptedException fail) {
1011	>	threadFail("Unexpected InterruptedException");
1012	>	}
1013	>	}
1014	>
1015	>	/**
1016	>	* Like Runnable, but with the freedom to throw anything.
1017	>	* junit folks had the same idea:
1018	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1019	>	*/
1020	>	interface Action { public void run() throws Throwable; }
1021	>
1022	>	/**
1023	>	* Runs all the given actions in parallel, failing if any fail.
1024	>	* Useful for running multiple variants of tests that are
1025	>	* necessarily individually slow because they must block.
1026	>	*/
1027	>	void testInParallel(Action ... actions) {
1028	>	ExecutorService pool = Executors.newCachedThreadPool();
1029	>	try (PoolCleaner cleaner = cleaner(pool)) {
1030	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1031	>	for (final Action action : actions)
1032	>	futures.add(pool.submit(new CheckedRunnable() {
1033	>	public void realRun() throws Throwable { action.run();}}));
1034	>	for (Future<?> future : futures)
1035	>	try {
1036	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1037	>	} catch (ExecutionException ex) {
1038	>	threadUnexpectedException(ex.getCause());
1039	>	} catch (Exception ex) {
1040	>	threadUnexpectedException(ex);
1041	>	}
1042		}
1043		}
1044
1045	+	/**
1046	+	* A debugging tool to print stack traces of most threads, as jstack does.
1047	+	* Uninteresting threads are filtered out.
1048	+	*/
1049	+	static void dumpTestThreads() {
1050	+	SecurityManager sm = System.getSecurityManager();
1051	+	if (sm != null) {
1052	+	try {
1053	+	System.setSecurityManager(null);
1054	+	} catch (SecurityException giveUp) {
1055	+	return;
1056	+	}
1057	+	}
1058	+
1059	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1060	+	System.err.println("------ stacktrace dump start ------");
1061	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1062	+	final String name = info.getThreadName();
1063	+	String lockName;
1064	+	if ("Signal Dispatcher".equals(name))
1065	+	continue;
1066	+	if ("Reference Handler".equals(name)
1067	+	&& (lockName = info.getLockName()) != null
1068	+	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1069	+	continue;
1070	+	if ("Finalizer".equals(name)
1071	+	&& (lockName = info.getLockName()) != null
1072	+	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1073	+	continue;
1074	+	if ("checkForWedgedTest".equals(name))
1075	+	continue;
1076	+	System.err.print(info);
1077	+	}
1078	+	System.err.println("------ stacktrace dump end ------");
1079	+
1080	+	if (sm != null) System.setSecurityManager(sm);
1081	+	}
1082	+
1083	+	/**
1084	+	* Checks that thread eventually enters the expected blocked thread state.
1085	+	*/
1086	+	void assertThreadBlocks(Thread thread, Thread.State expected) {
1087	+	// always sleep at least 1 ms, with high probability avoiding
1088	+	// transitory states
1089	+	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1090	+	try { delay(1); }
1091	+	catch (InterruptedException fail) {
1092	+	throw new AssertionError("Unexpected InterruptedException", fail);
1093	+	}
1094	+	Thread.State s = thread.getState();
1095	+	if (s == expected)
1096	+	return;
1097	+	else if (s == Thread.State.TERMINATED)
1098	+	fail("Unexpected thread termination");
1099	+	}
1100	+	fail("timed out waiting for thread to enter thread state " + expected);
1101	+	}
1102	+
1103	+	/**
1104	+	* Checks that future.get times out, with the default timeout of
1105	+	* {@code timeoutMillis()}.
1106	+	*/
1107	+	void assertFutureTimesOut(Future future) {
1108	+	assertFutureTimesOut(future, timeoutMillis());
1109	+	}
1110	+
1111	+	/**
1112	+	* Checks that future.get times out, with the given millisecond timeout.
1113	+	*/
1114	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1115	+	long startTime = System.nanoTime();
1116	+	try {
1117	+	future.get(timeoutMillis, MILLISECONDS);
1118	+	shouldThrow();
1119	+	} catch (TimeoutException success) {
1120	+	} catch (Exception fail) {
1121	+	threadUnexpectedException(fail);
1122	+	} finally { future.cancel(true); }
1123	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1124	+	}
1125
1126		/**
1127		* Fails with message "should throw exception".
#	Line 470 | Line 1138 | public class JSR166TestCase extends Test
1138		}
1139
1140		/**
1141	+	* The maximum number of consecutive spurious wakeups we should
1142	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1143	+	*/
1144	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1145	+
1146	+	/**
1147		* The number of elements to place in collections, arrays, etc.
1148		*/
1149		public static final int SIZE = 20;
#	Line 494 | Line 1168 | public class JSR166TestCase extends Test
1168		public static final Integer m6  = new Integer(-6);
1169		public static final Integer m10 = new Integer(-10);
1170
497	–
1171		/**
1172		* Runs Runnable r with a security policy that permits precisely
1173		* the specified permissions.  If there is no current security
#	Line 506 | Line 1179 | public class JSR166TestCase extends Test
1179		SecurityManager sm = System.getSecurityManager();
1180		if (sm == null) {
1181		r.run();
1182	+	}
1183	+	runWithSecurityManagerWithPermissions(r, permissions);
1184	+	}
1185	+
1186	+	/**
1187	+	* Runs Runnable r with a security policy that permits precisely
1188	+	* the specified permissions.  If there is no current security
1189	+	* manager, a temporary one is set for the duration of the
1190	+	* Runnable.  We require that any security manager permit
1191	+	* getPolicy/setPolicy.
1192	+	*/
1193	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1194	+	Permission... permissions) {
1195	+	SecurityManager sm = System.getSecurityManager();
1196	+	if (sm == null) {
1197		Policy savedPolicy = Policy.getPolicy();
1198		try {
1199		Policy.setPolicy(permissivePolicy());
1200		System.setSecurityManager(new SecurityManager());
1201	<	runWithPermissions(r, permissions);
1201	>	runWithSecurityManagerWithPermissions(r, permissions);
1202		} finally {
1203		System.setSecurityManager(null);
1204		Policy.setPolicy(savedPolicy);
#	Line 558 | Line 1246 | public class JSR166TestCase extends Test
1246		return perms.implies(p);
1247		}
1248		public void refresh() {}
1249	+	public String toString() {
1250	+	List<Permission> ps = new ArrayList<>();
1251	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1252	+	ps.add(e.nextElement());
1253	+	return "AdjustablePolicy with permissions " + ps;
1254	+	}
1255		}
1256
1257		/**
#	Line 581 | Line 1275 | public class JSR166TestCase extends Test
1275
1276		/**
1277		* Sleeps until the given time has elapsed.
1278	<	* Throws AssertionFailedError if interrupted.
1278	>	* Throws AssertionError if interrupted.
1279		*/
1280	<	void sleep(long millis) {
1280	>	static void sleep(long millis) {
1281		try {
1282	<	Thread.sleep(millis);
1283	<	} catch (InterruptedException ie) {
1284	<	AssertionFailedError afe =
1285	<	new AssertionFailedError("Unexpected InterruptedException");
1286	<	afe.initCause(ie);
1287	<	throw afe;
1282	>	delay(millis);
1283	>	} catch (InterruptedException fail) {
1284	>	throw new AssertionError("Unexpected InterruptedException", fail);
1285	>	}
1286	>	}
1287	>
1288	>	/**
1289	>	* Spin-waits up to the specified number of milliseconds for the given
1290	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1291	>	*/
1292	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1293	>	long startTime = 0L;
1294	>	for (;;) {
1295	>	Thread.State s = thread.getState();
1296	>	if (s == Thread.State.BLOCKED ||
1297	>	s == Thread.State.WAITING ||
1298	>	s == Thread.State.TIMED_WAITING)
1299	>	return;
1300	>	else if (s == Thread.State.TERMINATED)
1301	>	fail("Unexpected thread termination");
1302	>	else if (startTime == 0L)
1303	>	startTime = System.nanoTime();
1304	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1305	>	threadAssertTrue(thread.isAlive());
1306	>	fail("timed out waiting for thread to enter wait state");
1307	>	}
1308	>	Thread.yield();
1309	>	}
1310	>	}
1311	>
1312	>	/**
1313	>	* Spin-waits up to the specified number of milliseconds for the given
1314	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1315	>	* and additionally satisfy the given condition.
1316	>	*/
1317	>	void waitForThreadToEnterWaitState(
1318	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1319	>	long startTime = 0L;
1320	>	for (;;) {
1321	>	Thread.State s = thread.getState();
1322	>	if (s == Thread.State.BLOCKED ||
1323	>	s == Thread.State.WAITING ||
1324	>	s == Thread.State.TIMED_WAITING) {
1325	>	try {
1326	>	if (waitingForGodot.call())
1327	>	return;
1328	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1329	>	}
1330	>	else if (s == Thread.State.TERMINATED)
1331	>	fail("Unexpected thread termination");
1332	>	else if (startTime == 0L)
1333	>	startTime = System.nanoTime();
1334	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1335	>	threadAssertTrue(thread.isAlive());
1336	>	fail("timed out waiting for thread to enter wait state");
1337	>	}
1338	>	Thread.yield();
1339		}
1340		}
1341
1342		/**
1343	<	* Sleeps until the timeout has elapsed, or interrupted.
1344	<	* Does <em>NOT</em> throw InterruptedException.
1343	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1344	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1345	>	*/
1346	>	void waitForThreadToEnterWaitState(Thread thread) {
1347	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1348	>	}
1349	>
1350	>	/**
1351	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1352	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1353	>	* and additionally satisfy the given condition.
1354	>	*/
1355	>	void waitForThreadToEnterWaitState(
1356	>	Thread thread, Callable<Boolean> waitingForGodot) {
1357	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1358	>	}
1359	>
1360	>	/**
1361	>	* Returns the number of milliseconds since time given by
1362	>	* startNanoTime, which must have been previously returned from a
1363	>	* call to {@link System#nanoTime()}.
1364		*/
1365	<	void sleepTillInterrupted(long timeoutMillis) {
1365	>	static long millisElapsedSince(long startNanoTime) {
1366	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1367	>	}
1368	>
1369	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1370	>	//         long startTime = System.nanoTime();
1371	>	//         try {
1372	>	//             r.run();
1373	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1374	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1375	>	//             throw new AssertionError("did not return promptly");
1376	>	//     }
1377	>
1378	>	//     void assertTerminatesPromptly(Runnable r) {
1379	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1380	>	//     }
1381	>
1382	>	/**
1383	>	* Checks that timed f.get() returns the expected value, and does not
1384	>	* wait for the timeout to elapse before returning.
1385	>	*/
1386	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1387	>	long startTime = System.nanoTime();
1388		try {
1389	<	Thread.sleep(timeoutMillis);
1390	<	} catch (InterruptedException wakeup) {}
1389	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1390	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1391	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1392	>	throw new AssertionError("timed get did not return promptly");
1393	>	}
1394	>
1395	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1396	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1397		}
1398
1399		/**
#	Line 622 | Line 1414 | public class JSR166TestCase extends Test
1414		void awaitTermination(Thread t, long timeoutMillis) {
1415		try {
1416		t.join(timeoutMillis);
1417	<	} catch (InterruptedException ie) {
1418	<	threadUnexpectedException(ie);
1417	>	} catch (InterruptedException fail) {
1418	>	threadUnexpectedException(fail);
1419		} finally {
1420	<	if (t.isAlive()) {
1420	>	if (t.getState() != Thread.State.TERMINATED) {
1421		t.interrupt();
1422	<	fail("Test timed out");
1422	>	threadFail("timed out waiting for thread to terminate");
1423		}
1424		}
1425		}
1426
1427	+	/**
1428	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1429	+	* terminate (using {@link Thread#join(long)}), else interrupts
1430	+	* the thread (in the hope that it may terminate later) and fails.
1431	+	*/
1432	+	void awaitTermination(Thread t) {
1433	+	awaitTermination(t, LONG_DELAY_MS);
1434	+	}
1435	+
1436		// Some convenient Runnable classes
1437
1438		public abstract class CheckedRunnable implements Runnable {
#	Line 640 | Line 1441 | public class JSR166TestCase extends Test
1441		public final void run() {
1442		try {
1443		realRun();
1444	<	} catch (Throwable t) {
1445	<	threadUnexpectedException(t);
1444	>	} catch (Throwable fail) {
1445	>	threadUnexpectedException(fail);
1446		}
1447		}
1448		}
#	Line 694 | Line 1495 | public class JSR166TestCase extends Test
1495		realRun();
1496		threadShouldThrow("InterruptedException");
1497		} catch (InterruptedException success) {
1498	<	} catch (Throwable t) {
1499	<	threadUnexpectedException(t);
1498	>	threadAssertFalse(Thread.interrupted());
1499	>	} catch (Throwable fail) {
1500	>	threadUnexpectedException(fail);
1501		}
1502		}
1503		}
#	Line 706 | Line 1508 | public class JSR166TestCase extends Test
1508		public final T call() {
1509		try {
1510		return realCall();
1511	<	} catch (Throwable t) {
1512	<	threadUnexpectedException(t);
1511	>	} catch (Throwable fail) {
1512	>	threadUnexpectedException(fail);
1513		return null;
1514		}
1515		}
#	Line 723 | Line 1525 | public class JSR166TestCase extends Test
1525		threadShouldThrow("InterruptedException");
1526		return result;
1527		} catch (InterruptedException success) {
1528	<	} catch (Throwable t) {
1529	<	threadUnexpectedException(t);
1528	>	threadAssertFalse(Thread.interrupted());
1529	>	} catch (Throwable fail) {
1530	>	threadUnexpectedException(fail);
1531		}
1532		return null;
1533		}
#	Line 741 | Line 1544 | public class JSR166TestCase extends Test
1544		public static final String TEST_STRING = "a test string";
1545
1546		public static class StringTask implements Callable<String> {
1547	<	public String call() { return TEST_STRING; }
1547	>	final String value;
1548	>	public StringTask() { this(TEST_STRING); }
1549	>	public StringTask(String value) { this.value = value; }
1550	>	public String call() { return value; }
1551		}
1552
1553		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 754 | Line 1560 | public class JSR166TestCase extends Test
1560		}};
1561		}
1562
1563	<	public static class NPETask implements Callable<String> {
1564	<	public String call() { throw new NullPointerException(); }
1563	>	public Runnable countDowner(final CountDownLatch latch) {
1564	>	return new CheckedRunnable() {
1565	>	public void realRun() throws InterruptedException {
1566	>	latch.countDown();
1567	>	}};
1568		}
1569
1570	<	public static class CallableOne implements Callable<Integer> {
1571	<	public Integer call() { return one; }
1570	>	class LatchAwaiter extends CheckedRunnable {
1571	>	static final int NEW = 0;
1572	>	static final int RUNNING = 1;
1573	>	static final int DONE = 2;
1574	>	final CountDownLatch latch;
1575	>	int state = NEW;
1576	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1577	>	public void realRun() throws InterruptedException {
1578	>	state = 1;
1579	>	await(latch);
1580	>	state = 2;
1581	>	}
1582		}
1583
1584	<	public class ShortRunnable extends CheckedRunnable {
1585	<	protected void realRun() throws Throwable {
767	<	Thread.sleep(SHORT_DELAY_MS);
768	<	}
1584	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1585	>	return new LatchAwaiter(latch);
1586		}
1587
1588	<	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1589	<	protected void realRun() throws InterruptedException {
1590	<	Thread.sleep(SHORT_DELAY_MS);
1588	>	public void await(CountDownLatch latch, long timeoutMillis) {
1589	>	try {
1590	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1591	>	fail("timed out waiting for CountDownLatch for "
1592	>	+ (timeoutMillis/1000) + " sec");
1593	>	} catch (Throwable fail) {
1594	>	threadUnexpectedException(fail);
1595		}
1596		}
1597
1598	<	public class SmallRunnable extends CheckedRunnable {
1599	<	protected void realRun() throws Throwable {
779	<	Thread.sleep(SMALL_DELAY_MS);
780	<	}
1598	>	public void await(CountDownLatch latch) {
1599	>	await(latch, LONG_DELAY_MS);
1600		}
1601
1602	<	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1603	<	protected void realRun() {
1604	<	try {
1605	<	Thread.sleep(SMALL_DELAY_MS);
1606	<	} catch (InterruptedException ok) {}
1602	>	public void await(Semaphore semaphore) {
1603	>	try {
1604	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1605	>	fail("timed out waiting for Semaphore for "
1606	>	+ (LONG_DELAY_MS/1000) + " sec");
1607	>	} catch (Throwable fail) {
1608	>	threadUnexpectedException(fail);
1609		}
1610		}
1611
1612	<	public class SmallCallable extends CheckedCallable {
1613	<	protected Object realCall() throws InterruptedException {
1614	<	Thread.sleep(SMALL_DELAY_MS);
1615	<	return Boolean.TRUE;
1612	>	public void await(CyclicBarrier barrier) {
1613	>	try {
1614	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1615	>	} catch (Throwable fail) {
1616	>	threadUnexpectedException(fail);
1617		}
1618		}
1619
1620	<	public class MediumRunnable extends CheckedRunnable {
1621	<	protected void realRun() throws Throwable {
1622	<	Thread.sleep(MEDIUM_DELAY_MS);
1623	<	}
1620	>	//     /**
1621	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1622	>	//      */
1623	>	//     public void await(AtomicBoolean flag) {
1624	>	//         await(flag, LONG_DELAY_MS);
1625	>	//     }
1626	>
1627	>	//     /**
1628	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1629	>	//      */
1630	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1631	>	//         long startTime = System.nanoTime();
1632	>	//         while (!flag.get()) {
1633	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1634	>	//                 throw new AssertionError("timed out");
1635	>	//             Thread.yield();
1636	>	//         }
1637	>	//     }
1638	>
1639	>	public static class NPETask implements Callable<String> {
1640	>	public String call() { throw new NullPointerException(); }
1641		}
1642
1643	<	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1644	<	protected void realRun() throws InterruptedException {
1645	<	Thread.sleep(MEDIUM_DELAY_MS);
1643	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1644	>	protected void realRun() {
1645	>	try {
1646	>	delay(SMALL_DELAY_MS);
1647	>	} catch (InterruptedException ok) {}
1648		}
1649		}
1650
#	Line 811 | Line 1652 | public class JSR166TestCase extends Test
1652		return new CheckedRunnable() {
1653		protected void realRun() {
1654		try {
1655	<	Thread.sleep(timeoutMillis);
1655	>	delay(timeoutMillis);
1656		} catch (InterruptedException ok) {}
1657		}};
1658		}
1659
819	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
820	–	protected void realRun() {
821	–	try {
822	–	Thread.sleep(MEDIUM_DELAY_MS);
823	–	} catch (InterruptedException ok) {}
824	–	}
825	–	}
826	–
827	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
828	–	protected void realRun() {
829	–	try {
830	–	Thread.sleep(LONG_DELAY_MS);
831	–	} catch (InterruptedException ok) {}
832	–	}
833	–	}
834	–
1660		/**
1661		* For use as ThreadFactory in constructors
1662		*/
#	Line 845 | Line 1670 | public class JSR166TestCase extends Test
1670		boolean isDone();
1671		}
1672
848	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
849	–	return new TrackedRunnable() {
850	–	private volatile boolean done = false;
851	–	public boolean isDone() { return done; }
852	–	public void run() {
853	–	try {
854	–	Thread.sleep(timeoutMillis);
855	–	done = true;
856	–	} catch (InterruptedException ok) {}
857	–	}
858	–	};
859	–	}
860	–
861	–	public static class TrackedShortRunnable implements Runnable {
862	–	public volatile boolean done = false;
863	–	public void run() {
864	–	try {
865	–	Thread.sleep(SHORT_DELAY_MS);
866	–	done = true;
867	–	} catch (InterruptedException ok) {}
868	–	}
869	–	}
870	–
871	–	public static class TrackedSmallRunnable implements Runnable {
872	–	public volatile boolean done = false;
873	–	public void run() {
874	–	try {
875	–	Thread.sleep(SMALL_DELAY_MS);
876	–	done = true;
877	–	} catch (InterruptedException ok) {}
878	–	}
879	–	}
880	–
881	–	public static class TrackedMediumRunnable implements Runnable {
882	–	public volatile boolean done = false;
883	–	public void run() {
884	–	try {
885	–	Thread.sleep(MEDIUM_DELAY_MS);
886	–	done = true;
887	–	} catch (InterruptedException ok) {}
888	–	}
889	–	}
890	–
891	–	public static class TrackedLongRunnable implements Runnable {
892	–	public volatile boolean done = false;
893	–	public void run() {
894	–	try {
895	–	Thread.sleep(LONG_DELAY_MS);
896	–	done = true;
897	–	} catch (InterruptedException ok) {}
898	–	}
899	–	}
900	–
1673		public static class TrackedNoOpRunnable implements Runnable {
1674		public volatile boolean done = false;
1675		public void run() {
#	Line 905 | Line 1677 | public class JSR166TestCase extends Test
1677		}
1678		}
1679
908	–	public static class TrackedCallable implements Callable {
909	–	public volatile boolean done = false;
910	–	public Object call() {
911	–	try {
912	–	Thread.sleep(SMALL_DELAY_MS);
913	–	done = true;
914	–	} catch (InterruptedException ok) {}
915	–	return Boolean.TRUE;
916	–	}
917	–	}
918	–
1680		/**
1681		* Analog of CheckedRunnable for RecursiveAction
1682		*/
1683		public abstract class CheckedRecursiveAction extends RecursiveAction {
1684		protected abstract void realCompute() throws Throwable;
1685
1686	<	public final void compute() {
1686	>	@Override protected final void compute() {
1687		try {
1688		realCompute();
1689	<	} catch (Throwable t) {
1690	<	threadUnexpectedException(t);
1689	>	} catch (Throwable fail) {
1690	>	threadUnexpectedException(fail);
1691		}
1692		}
1693		}
#	Line 937 | Line 1698 | public class JSR166TestCase extends Test
1698		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1699		protected abstract T realCompute() throws Throwable;
1700
1701	<	public final T compute() {
1701	>	@Override protected final T compute() {
1702		try {
1703		return realCompute();
1704	<	} catch (Throwable t) {
1705	<	threadUnexpectedException(t);
1704	>	} catch (Throwable fail) {
1705	>	threadUnexpectedException(fail);
1706		return null;
1707		}
1708		}
#	Line 956 | Line 1717 | public class JSR166TestCase extends Test
1717		}
1718
1719		/**
1720	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1721	<	* of throwing checked exceptions.
1720	>	* A CyclicBarrier that uses timed await and fails with
1721	>	* AssertionErrors instead of throwing checked exceptions.
1722		*/
1723	<	public class CheckedBarrier extends CyclicBarrier {
1723	>	public static class CheckedBarrier extends CyclicBarrier {
1724		public CheckedBarrier(int parties) { super(parties); }
1725
1726		public int await() {
1727		try {
1728	<	return super.await();
1729	<	} catch (Exception e) {
1730	<	AssertionFailedError afe =
1731	<	new AssertionFailedError("Unexpected exception: " + e);
1732	<	afe.initCause(e);
972	<	throw afe;
1728	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1729	>	} catch (TimeoutException timedOut) {
1730	>	throw new AssertionError("timed out");
1731	>	} catch (Exception fail) {
1732	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1733		}
1734		}
1735		}
1736
1737	+	void checkEmpty(BlockingQueue q) {
1738	+	try {
1739	+	assertTrue(q.isEmpty());
1740	+	assertEquals(0, q.size());
1741	+	assertNull(q.peek());
1742	+	assertNull(q.poll());
1743	+	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1744	+	assertEquals(q.toString(), "[]");
1745	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1746	+	assertFalse(q.iterator().hasNext());
1747	+	try {
1748	+	q.element();
1749	+	shouldThrow();
1750	+	} catch (NoSuchElementException success) {}
1751	+	try {
1752	+	q.iterator().next();
1753	+	shouldThrow();
1754	+	} catch (NoSuchElementException success) {}
1755	+	try {
1756	+	q.remove();
1757	+	shouldThrow();
1758	+	} catch (NoSuchElementException success) {}
1759	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1760	+	}
1761	+
1762	+	void assertSerialEquals(Object x, Object y) {
1763	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1764	+	}
1765	+
1766	+	void assertNotSerialEquals(Object x, Object y) {
1767	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1768	+	}
1769	+
1770	+	byte[] serialBytes(Object o) {
1771	+	try {
1772	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1773	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1774	+	oos.writeObject(o);
1775	+	oos.flush();
1776	+	oos.close();
1777	+	return bos.toByteArray();
1778	+	} catch (Throwable fail) {
1779	+	threadUnexpectedException(fail);
1780	+	return new byte[0];
1781	+	}
1782	+	}
1783	+
1784	+	void assertImmutable(final Object o) {
1785	+	if (o instanceof Collection) {
1786	+	assertThrows(
1787	+	UnsupportedOperationException.class,
1788	+	new Runnable() { public void run() {
1789	+	((Collection) o).add(null);}});
1790	+	}
1791	+	}
1792	+
1793	+	@SuppressWarnings("unchecked")
1794	+	<T> T serialClone(T o) {
1795	+	try {
1796	+	ObjectInputStream ois = new ObjectInputStream
1797	+	(new ByteArrayInputStream(serialBytes(o)));
1798	+	T clone = (T) ois.readObject();
1799	+	if (o == clone) assertImmutable(o);
1800	+	assertSame(o.getClass(), clone.getClass());
1801	+	return clone;
1802	+	} catch (Throwable fail) {
1803	+	threadUnexpectedException(fail);
1804	+	return null;
1805	+	}
1806	+	}
1807	+
1808	+	/**
1809	+	* A version of serialClone that leaves error handling (for
1810	+	* e.g. NotSerializableException) up to the caller.
1811	+	*/
1812	+	@SuppressWarnings("unchecked")
1813	+	<T> T serialClonePossiblyFailing(T o)
1814	+	throws ReflectiveOperationException, java.io.IOException {
1815	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1816	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1817	+	oos.writeObject(o);
1818	+	oos.flush();
1819	+	oos.close();
1820	+	ObjectInputStream ois = new ObjectInputStream
1821	+	(new ByteArrayInputStream(bos.toByteArray()));
1822	+	T clone = (T) ois.readObject();
1823	+	if (o == clone) assertImmutable(o);
1824	+	assertSame(o.getClass(), clone.getClass());
1825	+	return clone;
1826	+	}
1827	+
1828	+	/**
1829	+	* If o implements Cloneable and has a public clone method,
1830	+	* returns a clone of o, else null.
1831	+	*/
1832	+	@SuppressWarnings("unchecked")
1833	+	<T> T cloneableClone(T o) {
1834	+	if (!(o instanceof Cloneable)) return null;
1835	+	final T clone;
1836	+	try {
1837	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1838	+	} catch (NoSuchMethodException ok) {
1839	+	return null;
1840	+	} catch (ReflectiveOperationException unexpected) {
1841	+	throw new Error(unexpected);
1842	+	}
1843	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1844	+	assertSame(o.getClass(), clone.getClass());
1845	+	return clone;
1846	+	}
1847	+
1848	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1849	+	Runnable... throwingActions) {
1850	+	for (Runnable throwingAction : throwingActions) {
1851	+	boolean threw = false;
1852	+	try { throwingAction.run(); }
1853	+	catch (Throwable t) {
1854	+	threw = true;
1855	+	if (!expectedExceptionClass.isInstance(t))
1856	+	throw new AssertionError(
1857	+	"Expected " + expectedExceptionClass.getName() +
1858	+	", got " + t.getClass().getName(),
1859	+	t);
1860	+	}
1861	+	if (!threw)
1862	+	shouldThrow(expectedExceptionClass.getName());
1863	+	}
1864	+	}
1865	+
1866	+	public void assertIteratorExhausted(Iterator<?> it) {
1867	+	try {
1868	+	it.next();
1869	+	shouldThrow();
1870	+	} catch (NoSuchElementException success) {}
1871	+	assertFalse(it.hasNext());
1872	+	}
1873	+
1874	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1875	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1876	+	}
1877	+
1878	+	public Runnable runnableThrowing(final RuntimeException ex) {
1879	+	return new Runnable() { public void run() { throw ex; }};
1880	+	}
1881	+
1882	+	/** A reusable thread pool to be shared by tests. */
1883	+	static final ExecutorService cachedThreadPool =
1884	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1885	+	1000L, MILLISECONDS,
1886	+	new SynchronousQueue<Runnable>());
1887	+
1888	+	static <T> void shuffle(T[] array) {
1889	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1890	+	}
1891	+
1892	+	/**
1893	+	* Returns the same String as would be returned by {@link
1894	+	* Object#toString}, whether or not the given object's class
1895	+	* overrides toString().
1896	+	*
1897	+	* @see System#identityHashCode
1898	+	*/
1899	+	static String identityString(Object x) {
1900	+	return x.getClass().getName()
1901	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1902	+	}
1903	+
1904	+	// --- Shared assertions for Executor tests ---
1905	+
1906	+	/**
1907	+	* Returns maximum number of tasks that can be submitted to given
1908	+	* pool (with bounded queue) before saturation (when submission
1909	+	* throws RejectedExecutionException).
1910	+	*/
1911	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1912	+	BlockingQueue<Runnable> q = pool.getQueue();
1913	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1914	+	}
1915	+
1916	+	@SuppressWarnings("FutureReturnValueIgnored")
1917	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1918	+	try {
1919	+	e.execute((Runnable) null);
1920	+	shouldThrow();
1921	+	} catch (NullPointerException success) {}
1922	+
1923	+	if (! (e instanceof ExecutorService)) return;
1924	+	ExecutorService es = (ExecutorService) e;
1925	+	try {
1926	+	es.submit((Runnable) null);
1927	+	shouldThrow();
1928	+	} catch (NullPointerException success) {}
1929	+	try {
1930	+	es.submit((Runnable) null, Boolean.TRUE);
1931	+	shouldThrow();
1932	+	} catch (NullPointerException success) {}
1933	+	try {
1934	+	es.submit((Callable) null);
1935	+	shouldThrow();
1936	+	} catch (NullPointerException success) {}
1937	+
1938	+	if (! (e instanceof ScheduledExecutorService)) return;
1939	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1940	+	try {
1941	+	ses.schedule((Runnable) null,
1942	+	randomTimeout(), randomTimeUnit());
1943	+	shouldThrow();
1944	+	} catch (NullPointerException success) {}
1945	+	try {
1946	+	ses.schedule((Callable) null,
1947	+	randomTimeout(), randomTimeUnit());
1948	+	shouldThrow();
1949	+	} catch (NullPointerException success) {}
1950	+	try {
1951	+	ses.scheduleAtFixedRate((Runnable) null,
1952	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1953	+	shouldThrow();
1954	+	} catch (NullPointerException success) {}
1955	+	try {
1956	+	ses.scheduleWithFixedDelay((Runnable) null,
1957	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1958	+	shouldThrow();
1959	+	} catch (NullPointerException success) {}
1960	+	}
1961	+
1962	+	void setRejectedExecutionHandler(
1963	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1964	+	p.setRejectedExecutionHandler(handler);
1965	+	assertSame(handler, p.getRejectedExecutionHandler());
1966	+	}
1967	+
1968	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1969	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1970	+	final long savedTaskCount = p.getTaskCount();
1971	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1972	+	final int savedQueueSize = p.getQueue().size();
1973	+	final boolean stock = (p.getClass().getClassLoader() == null);
1974	+
1975	+	Runnable r = () -> {};
1976	+	Callable<Boolean> c = () -> Boolean.TRUE;
1977	+
1978	+	class Recorder implements RejectedExecutionHandler {
1979	+	public volatile Runnable r = null;
1980	+	public volatile ThreadPoolExecutor p = null;
1981	+	public void reset() { r = null; p = null; }
1982	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1983	+	assertNull(this.r);
1984	+	assertNull(this.p);
1985	+	this.r = r;
1986	+	this.p = p;
1987	+	}
1988	+	}
1989	+
1990	+	// check custom handler is invoked exactly once per task
1991	+	Recorder recorder = new Recorder();
1992	+	setRejectedExecutionHandler(p, recorder);
1993	+	for (int i = 2; i--> 0; ) {
1994	+	recorder.reset();
1995	+	p.execute(r);
1996	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1997	+	assertSame(r, recorder.r);
1998	+	assertSame(p, recorder.p);
1999	+
2000	+	recorder.reset();
2001	+	assertFalse(p.submit(r).isDone());
2002	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2003	+	assertSame(p, recorder.p);
2004	+
2005	+	recorder.reset();
2006	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2007	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2008	+	assertSame(p, recorder.p);
2009	+
2010	+	recorder.reset();
2011	+	assertFalse(p.submit(c).isDone());
2012	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2013	+	assertSame(p, recorder.p);
2014	+
2015	+	if (p instanceof ScheduledExecutorService) {
2016	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2017	+	ScheduledFuture<?> future;
2018	+
2019	+	recorder.reset();
2020	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2021	+	assertFalse(future.isDone());
2022	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2023	+	assertSame(p, recorder.p);
2024	+
2025	+	recorder.reset();
2026	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2027	+	assertFalse(future.isDone());
2028	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2029	+	assertSame(p, recorder.p);
2030	+
2031	+	recorder.reset();
2032	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2033	+	assertFalse(future.isDone());
2034	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2035	+	assertSame(p, recorder.p);
2036	+
2037	+	recorder.reset();
2038	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2039	+	assertFalse(future.isDone());
2040	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2041	+	assertSame(p, recorder.p);
2042	+	}
2043	+	}
2044	+
2045	+	// Checking our custom handler above should be sufficient, but
2046	+	// we add some integration tests of standard handlers.
2047	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2048	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2049	+
2050	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2051	+	try {
2052	+	p.execute(setThread);
2053	+	shouldThrow();
2054	+	} catch (RejectedExecutionException success) {}
2055	+	assertNull(thread.get());
2056	+
2057	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2058	+	p.execute(setThread);
2059	+	assertNull(thread.get());
2060	+
2061	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2062	+	p.execute(setThread);
2063	+	if (p.isShutdown())
2064	+	assertNull(thread.get());
2065	+	else
2066	+	assertSame(Thread.currentThread(), thread.get());
2067	+
2068	+	setRejectedExecutionHandler(p, savedHandler);
2069	+
2070	+	// check that pool was not perturbed by handlers
2071	+	assertEquals(savedTaskCount, p.getTaskCount());
2072	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2073	+	assertEquals(savedQueueSize, p.getQueue().size());
2074	+	}
2075		}

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