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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.136 by jsr166, Fri Sep 4 18:16:28 2015 UTC vs.
Revision 1.268 by jsr166, Sun Sep 22 01:59:57 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
2	>	* Written by Doug Lea and Martin Buchholz with assistance from
3	>	* members of JCP JSR-166 Expert Group and released to the public
4	>	* domain, as explained at
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		* Other contributors include Andrew Wright, Jeffrey Hayes,
7		* Pat Fisher, Mike Judd.
8		*/
9
10	+	/*
11	+	* @test
12	+	* @summary JSR-166 tck tests, in a number of variations.
13	+	*          The first is the conformance testing variant,
14	+	*          while others also test implementation details.
15	+	* @build *
16	+	* @modules java.management
17	+	* @run junit/othervm/timeout=1000 JSR166TestCase
18	+	* @run junit/othervm/timeout=1000
19	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
20	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
21	+	*      -Djsr166.testImplementationDetails=true
22	+	*      JSR166TestCase
23	+	* @run junit/othervm/timeout=1000
24	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
25	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
26	+	*      -Djsr166.testImplementationDetails=true
27	+	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
28	+	*      JSR166TestCase
29	+	* @run junit/othervm/timeout=1000
30	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
31	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
32	+	*      -Djsr166.testImplementationDetails=true
33	+	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
34	+	*      -Djava.util.secureRandomSeed=true
35	+	*      JSR166TestCase
36	+	* @run junit/othervm/timeout=1000/policy=tck.policy
37	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
38	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
39	+	*      -Djsr166.testImplementationDetails=true
40	+	*      JSR166TestCase
41	+	*/
42	+
43		import static java.util.concurrent.TimeUnit.MILLISECONDS;
44	+	import static java.util.concurrent.TimeUnit.MINUTES;
45		import static java.util.concurrent.TimeUnit.NANOSECONDS;
46
47		import java.io.ByteArrayInputStream;
#	Line 14 | Line 49 | import java.io.ByteArrayOutputStream;
49		import java.io.ObjectInputStream;
50		import java.io.ObjectOutputStream;
51		import java.lang.management.ManagementFactory;
52	+	import java.lang.management.LockInfo;
53		import java.lang.management.ThreadInfo;
54	+	import java.lang.management.ThreadMXBean;
55		import java.lang.reflect.Constructor;
56		import java.lang.reflect.Method;
57		import java.lang.reflect.Modifier;
#	Line 27 | Line 64 | import java.security.ProtectionDomain;
64		import java.security.SecurityPermission;
65		import java.util.ArrayList;
66		import java.util.Arrays;
67	+	import java.util.Collection;
68	+	import java.util.Collections;
69		import java.util.Date;
70	+	import java.util.Deque;
71		import java.util.Enumeration;
72	+	import java.util.HashSet;
73		import java.util.Iterator;
74		import java.util.List;
75		import java.util.NoSuchElementException;
76		import java.util.PropertyPermission;
77	+	import java.util.Set;
78		import java.util.concurrent.BlockingQueue;
79		import java.util.concurrent.Callable;
80		import java.util.concurrent.CountDownLatch;
81		import java.util.concurrent.CyclicBarrier;
82	+	import java.util.concurrent.ExecutionException;
83	+	import java.util.concurrent.Executor;
84	+	import java.util.concurrent.Executors;
85		import java.util.concurrent.ExecutorService;
86	+	import java.util.concurrent.ForkJoinPool;
87		import java.util.concurrent.Future;
88	+	import java.util.concurrent.FutureTask;
89		import java.util.concurrent.RecursiveAction;
90		import java.util.concurrent.RecursiveTask;
91	+	import java.util.concurrent.RejectedExecutionException;
92		import java.util.concurrent.RejectedExecutionHandler;
93		import java.util.concurrent.Semaphore;
94	+	import java.util.concurrent.ScheduledExecutorService;
95	+	import java.util.concurrent.ScheduledFuture;
96	+	import java.util.concurrent.SynchronousQueue;
97		import java.util.concurrent.ThreadFactory;
98	+	import java.util.concurrent.ThreadLocalRandom;
99		import java.util.concurrent.ThreadPoolExecutor;
100	+	import java.util.concurrent.TimeUnit;
101		import java.util.concurrent.TimeoutException;
102	+	import java.util.concurrent.atomic.AtomicBoolean;
103		import java.util.concurrent.atomic.AtomicReference;
104		import java.util.regex.Pattern;
105
52	–	import junit.framework.AssertionFailedError;
106		import junit.framework.Test;
107		import junit.framework.TestCase;
108		import junit.framework.TestResult;
#	Line 65 | Line 118 | import junit.framework.TestSuite;
118		*
119		* <ol>
120		*
121	<	* <li> All assertions in code running in generated threads must use
122	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
123	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
124	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
125	<	* particularly recommended) for other code to use these forms too.
126	<	* Only the most typically used JUnit assertion methods are defined
127	<	* this way, but enough to live with.</li>
121	>	* <li>All code not running in the main test thread (manually spawned threads
122	>	* or the common fork join pool) must be checked for failure (and completion!).
123	>	* Mechanisms that can be used to ensure this are:
124	>	*   <ol>
125	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
126	>	*    that the task completed normally, which is checked before returning from
127	>	*    the test method in the main thread.
128	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
129	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
130	>	*    Only the most typically used JUnit assertion methods are defined
131	>	*    this way, but enough to live with.
132	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
133	>	*    or {@link #threadRecordFailure}.
134	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
135	>	*   </ol>
136		*
137	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
137	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
138		* to invoke {@code super.setUp} and {@code super.tearDown} within
139		* them. These methods are used to clear and check for thread
140	<	* assertion failures.</li>
140	>	* assertion failures.
141		*
142		* <li>All delays and timeouts must use one of the constants {@code
143		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 87 | Line 148 | import junit.framework.TestSuite;
148		* is always discriminable as larger than SHORT and smaller than
149		* MEDIUM.  And so on. These constants are set to conservative values,
150		* but even so, if there is ever any doubt, they can all be increased
151	<	* in one spot to rerun tests on slower platforms.</li>
151	>	* in one spot to rerun tests on slower platforms.
152		*
153	<	* <li> All threads generated must be joined inside each test case
153	>	* <li>All threads generated must be joined inside each test case
154		* method (or {@code fail} to do so) before returning from the
155		* method. The {@code joinPool} method can be used to do this when
156	<	* using Executors.</li>
156	>	* using Executors.
157		*
158		* </ol>
159		*
160		* <p><b>Other notes</b>
161		* <ul>
162		*
163	<	* <li> Usually, there is one testcase method per JSR166 method
163	>	* <li>Usually, there is one testcase method per JSR166 method
164		* covering "normal" operation, and then as many exception-testing
165		* methods as there are exceptions the method can throw. Sometimes
166		* there are multiple tests per JSR166 method when the different
167		* "normal" behaviors differ significantly. And sometimes testcases
168	<	* cover multiple methods when they cannot be tested in
108	<	* isolation.</li>
168	>	* cover multiple methods when they cannot be tested in isolation.
169		*
170	<	* <li> The documentation style for testcases is to provide as javadoc
170	>	* <li>The documentation style for testcases is to provide as javadoc
171		* a simple sentence or two describing the property that the testcase
172		* method purports to test. The javadocs do not say anything about how
173	<	* the property is tested. To find out, read the code.</li>
173	>	* the property is tested. To find out, read the code.
174		*
175	<	* <li> These tests are "conformance tests", and do not attempt to
175	>	* <li>These tests are "conformance tests", and do not attempt to
176		* test throughput, latency, scalability or other performance factors
177		* (see the separate "jtreg" tests for a set intended to check these
178		* for the most central aspects of functionality.) So, most tests use
179		* the smallest sensible numbers of threads, collection sizes, etc
180	<	* needed to check basic conformance.</li>
180	>	* needed to check basic conformance.
181		*
182		* <li>The test classes currently do not declare inclusion in
183		* any particular package to simplify things for people integrating
184	<	* them in TCK test suites.</li>
184	>	* them in TCK test suites.
185		*
186	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
187	<	* runs all JSR166 unit tests.</li>
186	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
187	>	* runs all JSR166 unit tests.
188		*
189		* </ul>
190		*/
#	Line 168 | Line 228 | public class JSR166TestCase extends Test
228		private static final int suiteRuns =
229		Integer.getInteger("jsr166.suiteRuns", 1);
230
231	+	/**
232	+	* Returns the value of the system property, or NaN if not defined.
233	+	*/
234	+	private static float systemPropertyValue(String name) {
235	+	String floatString = System.getProperty(name);
236	+	if (floatString == null)
237	+	return Float.NaN;
238	+	try {
239	+	return Float.parseFloat(floatString);
240	+	} catch (NumberFormatException ex) {
241	+	throw new IllegalArgumentException(
242	+	String.format("Bad float value in system property %s=%s",
243	+	name, floatString));
244	+	}
245	+	}
246	+
247	+	private static final ThreadMXBean THREAD_MXBEAN
248	+	= ManagementFactory.getThreadMXBean();
249	+
250	+	/**
251	+	* The scaling factor to apply to standard delays used in tests.
252	+	* May be initialized from any of:
253	+	* - the "jsr166.delay.factor" system property
254	+	* - the "test.timeout.factor" system property (as used by jtreg)
255	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
256	+	* - hard-coded fuzz factor when using a known slowpoke VM
257	+	*/
258	+	private static final float delayFactor = delayFactor();
259	+
260	+	private static float delayFactor() {
261	+	float x;
262	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
263	+	return x;
264	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
265	+	return x;
266	+	String prop = System.getProperty("java.vm.version");
267	+	if (prop != null && prop.matches(".*debug.*"))
268	+	return 4.0f; // How much slower is fastdebug than product?!
269	+	return 1.0f;
270	+	}
271	+
272		public JSR166TestCase() { super(); }
273		public JSR166TestCase(String name) { super(name); }
274
#	Line 183 | Line 284 | public class JSR166TestCase extends Test
284		return (regex == null) ? null : Pattern.compile(regex);
285		}
286
287	<	protected void runTest() throws Throwable {
287	>	// Instrumentation to debug very rare, but very annoying hung test runs.
288	>	static volatile TestCase currentTestCase;
289	>	// static volatile int currentRun = 0;
290	>	static {
291	>	Runnable wedgedTestDetector = new Runnable() { public void run() {
292	>	// Avoid spurious reports with enormous runsPerTest.
293	>	// A single test case run should never take more than 1 second.
294	>	// But let's cap it at the high end too ...
295	>	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
296	>	* Math.max((int) delayFactor, 1);
297	>	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
298	>	for (TestCase lastTestCase = currentTestCase;;) {
299	>	try { MINUTES.sleep(timeoutMinutes); }
300	>	catch (InterruptedException unexpected) { break; }
301	>	if (lastTestCase == currentTestCase) {
302	>	System.err.printf(
303	>	"Looks like we're stuck running test: %s%n",
304	>	lastTestCase);
305	>	//                     System.err.printf(
306	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
307	>	//                         lastTestCase, currentRun, runsPerTest);
308	>	//                     System.err.println("availableProcessors=" +
309	>	//                         Runtime.getRuntime().availableProcessors());
310	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
311	>	dumpTestThreads();
312	>	// one stack dump is probably enough; more would be spam
313	>	break;
314	>	}
315	>	lastTestCase = currentTestCase;
316	>	}}};
317	>	Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
318	>	thread.setDaemon(true);
319	>	thread.start();
320	>	}
321	>
322	>	//     public static String cpuModel() {
323	>	//         try {
324	>	//             java.util.regex.Matcher matcher
325	>	//               = Pattern.compile("model name\\s*: (.*)")
326	>	//                 .matcher(new String(
327	>	//                     java.nio.file.Files.readAllBytes(
328	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
329	>	//             matcher.find();
330	>	//             return matcher.group(1);
331	>	//         } catch (Exception ex) { return null; }
332	>	//     }
333	>
334	>	public void runBare() throws Throwable {
335	>	currentTestCase = this;
336		if (methodFilter == null
337	<	|| methodFilter.matcher(toString()).find()) {
338	<	for (int i = 0; i < runsPerTest; i++) {
339	<	if (profileTests)
340	<	runTestProfiled();
341	<	else
342	<	super.runTest();
343	<	}
337	>	|| methodFilter.matcher(toString()).find())
338	>	super.runBare();
339	>	}
340	>
341	>	protected void runTest() throws Throwable {
342	>	for (int i = 0; i < runsPerTest; i++) {
343	>	// currentRun = i;
344	>	if (profileTests)
345	>	runTestProfiled();
346	>	else
347	>	super.runTest();
348		}
349		}
350
351		protected void runTestProfiled() throws Throwable {
352	<	// Warmup run, notably to trigger all needed classloading.
353	<	super.runTest();
201	<	long t0 = System.nanoTime();
202	<	try {
352	>	for (int i = 0; i < 2; i++) {
353	>	long startTime = System.nanoTime();
354		super.runTest();
355	<	} finally {
356	<	long elapsedMillis = millisElapsedSince(t0);
357	<	if (elapsedMillis >= profileThreshold)
358	<	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
355	>	long elapsedMillis = millisElapsedSince(startTime);
356	>	if (elapsedMillis < profileThreshold)
357	>	break;
358	>	// Never report first run of any test; treat it as a
359	>	// warmup run, notably to trigger all needed classloading,
360	>	if (i > 0)
361	>	System.out.printf("%s: %d%n", toString(), elapsedMillis);
362		}
363		}
364
#	Line 215 | Line 369 | public class JSR166TestCase extends Test
369		main(suite(), args);
370		}
371
372	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
373	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
374	+	long runTime;
375	+	public void startTest(Test test) {}
376	+	protected void printHeader(long runTime) {
377	+	this.runTime = runTime; // defer printing for later
378	+	}
379	+	protected void printFooter(TestResult result) {
380	+	if (result.wasSuccessful()) {
381	+	getWriter().println("OK (" + result.runCount() + " tests)"
382	+	+ "  Time: " + elapsedTimeAsString(runTime));
383	+	} else {
384	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
385	+	super.printFooter(result);
386	+	}
387	+	}
388	+	}
389	+
390	+	/**
391	+	* Returns a TestRunner that doesn't bother with unnecessary
392	+	* fluff, like printing a "." for each test case.
393	+	*/
394	+	static junit.textui.TestRunner newPithyTestRunner() {
395	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
396	+	runner.setPrinter(new PithyResultPrinter(System.out));
397	+	return runner;
398	+	}
399	+
400		/**
401		* Runs all unit tests in the given test suite.
402		* Actual behavior influenced by jsr166.* system properties.
#	Line 226 | Line 408 | public class JSR166TestCase extends Test
408		System.setSecurityManager(new SecurityManager());
409		}
410		for (int i = 0; i < suiteRuns; i++) {
411	<	TestResult result = junit.textui.TestRunner.run(suite);
411	>	TestResult result = newPithyTestRunner().doRun(suite);
412		if (!result.wasSuccessful())
413		System.exit(1);
414		System.gc();
#	Line 252 | Line 434 | public class JSR166TestCase extends Test
434		for (String testClassName : testClassNames) {
435		try {
436		Class<?> testClass = Class.forName(testClassName);
437	<	Method m = testClass.getDeclaredMethod("suite",
256	<	new Class<?>[0]);
437	>	Method m = testClass.getDeclaredMethod("suite");
438		suite.addTest(newTestSuite((Test)m.invoke(null)));
439	<	} catch (Exception e) {
440	<	throw new Error("Missing test class", e);
439	>	} catch (ReflectiveOperationException e) {
440	>	throw new AssertionError("Missing test class", e);
441		}
442		}
443		}
#	Line 278 | Line 459 | public class JSR166TestCase extends Test
459		}
460		}
461
462	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
463	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
464	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
465	<	public static boolean atLeastJava9() {
466	<	// As of 2015-09, java9 still uses 52.0 class file version
467	<	return JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
468	<	}
469	<	// public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; }
470	<	public static boolean atLeastJava10() {
471	<	return JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
472	<	}
462	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
463	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
464	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
465	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
466	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
467	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
468	>	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
469	>	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
470	>	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
471	>	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
472	>	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
473	>	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
474
475		/**
476		* Collects all JSR166 unit tests as one suite.
#	Line 309 | Line 491 | public class JSR166TestCase extends Test
491		AbstractQueuedLongSynchronizerTest.suite(),
492		ArrayBlockingQueueTest.suite(),
493		ArrayDequeTest.suite(),
494	+	ArrayListTest.suite(),
495		AtomicBooleanTest.suite(),
496		AtomicIntegerArrayTest.suite(),
497		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 331 | Line 514 | public class JSR166TestCase extends Test
514		CopyOnWriteArrayListTest.suite(),
515		CopyOnWriteArraySetTest.suite(),
516		CountDownLatchTest.suite(),
517	+	CountedCompleterTest.suite(),
518		CyclicBarrierTest.suite(),
519		DelayQueueTest.suite(),
520		EntryTest.suite(),
#	Line 338 | Line 522 | public class JSR166TestCase extends Test
522		ExecutorsTest.suite(),
523		ExecutorCompletionServiceTest.suite(),
524		FutureTaskTest.suite(),
525	+	HashtableTest.suite(),
526		LinkedBlockingDequeTest.suite(),
527		LinkedBlockingQueueTest.suite(),
528		LinkedListTest.suite(),
#	Line 359 | Line 544 | public class JSR166TestCase extends Test
544		TreeMapTest.suite(),
545		TreeSetTest.suite(),
546		TreeSubMapTest.suite(),
547	<	TreeSubSetTest.suite());
547	>	TreeSubSetTest.suite(),
548	>	VectorTest.suite());
549
550		// Java8+ test classes
551		if (atLeastJava8()) {
552		String[] java8TestClassNames = {
553	+	"ArrayDeque8Test",
554		"Atomic8Test",
555		"CompletableFutureTest",
556		"ConcurrentHashMap8Test",
557	<	"CountedCompleterTest",
557	>	"CountedCompleter8Test",
558		"DoubleAccumulatorTest",
559		"DoubleAdderTest",
560		"ForkJoinPool8Test",
561		"ForkJoinTask8Test",
562	+	"HashMapTest",
563	+	"LinkedBlockingDeque8Test",
564	+	"LinkedBlockingQueue8Test",
565	+	"LinkedHashMapTest",
566		"LongAccumulatorTest",
567		"LongAdderTest",
568		"SplittableRandomTest",
569		"StampedLockTest",
570	+	"SubmissionPublisherTest",
571		"ThreadLocalRandom8Test",
572	+	"TimeUnit8Test",
573		};
574		addNamedTestClasses(suite, java8TestClassNames);
575		}
#	Line 384 | Line 577 | public class JSR166TestCase extends Test
577		// Java9+ test classes
578		if (atLeastJava9()) {
579		String[] java9TestClassNames = {
580	<	"ThreadPoolExecutor9Test",
580	>	"AtomicBoolean9Test",
581	>	"AtomicInteger9Test",
582	>	"AtomicIntegerArray9Test",
583	>	"AtomicLong9Test",
584	>	"AtomicLongArray9Test",
585	>	"AtomicReference9Test",
586	>	"AtomicReferenceArray9Test",
587	>	"ExecutorCompletionService9Test",
588	>	"ForkJoinPool9Test",
589		};
590		addNamedTestClasses(suite, java9TestClassNames);
591		}
#	Line 395 | Line 596 | public class JSR166TestCase extends Test
596		/** Returns list of junit-style test method names in given class. */
597		public static ArrayList<String> testMethodNames(Class<?> testClass) {
598		Method[] methods = testClass.getDeclaredMethods();
599	<	ArrayList<String> names = new ArrayList<String>(methods.length);
599	>	ArrayList<String> names = new ArrayList<>(methods.length);
600		for (Method method : methods) {
601		if (method.getName().startsWith("test")
602		&& Modifier.isPublic(method.getModifiers())
#	Line 422 | Line 623 | public class JSR166TestCase extends Test
623		for (String methodName : testMethodNames(testClass))
624		suite.addTest((Test) c.newInstance(data, methodName));
625		return suite;
626	<	} catch (Exception e) {
627	<	throw new Error(e);
626	>	} catch (ReflectiveOperationException e) {
627	>	throw new AssertionError(e);
628		}
629		}
630
#	Line 439 | Line 640 | public class JSR166TestCase extends Test
640		if (atLeastJava8()) {
641		String name = testClass.getName();
642		String name8 = name.replaceAll("Test$", "8Test");
643	<	if (name.equals(name8)) throw new Error(name);
643	>	if (name.equals(name8)) throw new AssertionError(name);
644		try {
645		return (Test)
646		Class.forName(name8)
647	<	.getMethod("testSuite", new Class[] { dataClass })
647	>	.getMethod("testSuite", dataClass)
648		.invoke(null, data);
649	<	} catch (Exception e) {
650	<	throw new Error(e);
649	>	} catch (ReflectiveOperationException e) {
650	>	throw new AssertionError(e);
651		}
652		} else {
653		return new TestSuite();
654		}
454	–
655		}
656
657		// Delays for timing-dependent tests, in milliseconds.
#	Line 462 | Line 662 | public class JSR166TestCase extends Test
662		public static long LONG_DELAY_MS;
663
664		/**
665	<	* Returns the shortest timed delay. This could
666	<	* be reimplemented to use for example a Property.
665	>	* A delay significantly longer than LONG_DELAY_MS.
666	>	* Use this in a thread that is waited for via awaitTermination(Thread).
667	>	*/
668	>	public static long LONGER_DELAY_MS;
669	>
670	>	private static final long RANDOM_TIMEOUT;
671	>	private static final long RANDOM_EXPIRED_TIMEOUT;
672	>	private static final TimeUnit RANDOM_TIMEUNIT;
673	>	static {
674	>	ThreadLocalRandom rnd = ThreadLocalRandom.current();
675	>	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
676	>	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
677	>	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
678	>	TimeUnit[] timeUnits = TimeUnit.values();
679	>	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
680	>	}
681	>
682	>	/**
683	>	* Returns a timeout for use when any value at all will do.
684	>	*/
685	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
686	>
687	>	/**
688	>	* Returns a timeout that means "no waiting", i.e. not positive.
689	>	*/
690	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
691	>
692	>	/**
693	>	* Returns a random non-null TimeUnit.
694	>	*/
695	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
696	>
697	>	/**
698	>	* Returns a random boolean; a "coin flip".
699	>	*/
700	>	static boolean randomBoolean() {
701	>	return ThreadLocalRandom.current().nextBoolean();
702	>	}
703	>
704	>	/**
705	>	* Returns a random element from given choices.
706	>	*/
707	>	<T> T chooseRandomly(T... choices) {
708	>	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
709	>	}
710	>
711	>	/**
712	>	* Returns the shortest timed delay. This can be scaled up for
713	>	* slow machines using the jsr166.delay.factor system property,
714	>	* or via jtreg's -timeoutFactor: flag.
715	>	* http://openjdk.java.net/jtreg/command-help.html
716		*/
717		protected long getShortDelay() {
718	<	return 50;
718	>	return (long) (50 * delayFactor);
719		}
720
721		/**
#	Line 477 | Line 726 | public class JSR166TestCase extends Test
726		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
727		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
728		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
729	+	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
730		}
731
732	+	private static final long TIMEOUT_DELAY_MS
733	+	= (long) (12.0 * Math.cbrt(delayFactor));
734	+
735		/**
736	<	* Returns a timeout in milliseconds to be used in tests that
737	<	* verify that operations block or time out.
736	>	* Returns a timeout in milliseconds to be used in tests that verify
737	>	* that operations block or time out.  We want this to be longer
738	>	* than the OS scheduling quantum, but not too long, so don't scale
739	>	* linearly with delayFactor; we use "crazy" cube root instead.
740		*/
741	<	long timeoutMillis() {
742	<	return SHORT_DELAY_MS / 4;
741	>	static long timeoutMillis() {
742	>	return TIMEOUT_DELAY_MS;
743		}
744
745		/**
#	Line 500 | Line 755 | public class JSR166TestCase extends Test
755		* The first exception encountered if any threadAssertXXX method fails.
756		*/
757		private final AtomicReference<Throwable> threadFailure
758	<	= new AtomicReference<Throwable>(null);
758	>	= new AtomicReference<>(null);
759
760		/**
761		* Records an exception so that it can be rethrown later in the test
#	Line 509 | Line 764 | public class JSR166TestCase extends Test
764		* the same test have no effect.
765		*/
766		public void threadRecordFailure(Throwable t) {
767	<	threadFailure.compareAndSet(null, t);
767	>	System.err.println(t);
768	>	if (threadFailure.compareAndSet(null, t))
769	>	dumpTestThreads();
770		}
771
772		public void setUp() {
773		setDelays();
774		}
775
776	+	void tearDownFail(String format, Object... args) {
777	+	String msg = toString() + ": " + String.format(format, args);
778	+	System.err.println(msg);
779	+	dumpTestThreads();
780	+	throw new AssertionError(msg);
781	+	}
782	+
783		/**
784		* Extra checks that get done for all test cases.
785		*
#	Line 534 | Line 798 | public class JSR166TestCase extends Test
798		throw (RuntimeException) t;
799		else if (t instanceof Exception)
800		throw (Exception) t;
801	<	else {
802	<	AssertionFailedError afe =
539	<	new AssertionFailedError(t.toString());
540	<	afe.initCause(t);
541	<	throw afe;
542	<	}
801	>	else
802	>	throw new AssertionError(t.toString(), t);
803		}
804
805		if (Thread.interrupted())
806	<	throw new AssertionFailedError("interrupt status set in main thread");
806	>	tearDownFail("interrupt status set in main thread");
807
808		checkForkJoinPoolThreadLeaks();
809		}
810
811		/**
812	<	* Finds missing try { ... } finally { joinPool(e); }
812	>	* Finds missing PoolCleaners
813		*/
814		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
815	<	Thread[] survivors = new Thread[5];
815	>	Thread[] survivors = new Thread[7];
816		int count = Thread.enumerate(survivors);
817		for (int i = 0; i < count; i++) {
818		Thread thread = survivors[i];
#	Line 560 | Line 820 | public class JSR166TestCase extends Test
820		if (name.startsWith("ForkJoinPool-")) {
821		// give thread some time to terminate
822		thread.join(LONG_DELAY_MS);
823	<	if (!thread.isAlive()) continue;
824	<	throw new AssertionFailedError
825	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
566	<	toString(), name));
823	>	if (thread.isAlive())
824	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
825	>	thread);
826		}
827		}
828	+
829	+	if (!ForkJoinPool.commonPool()
830	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
831	+	tearDownFail("ForkJoin common pool thread stuck");
832		}
833
834		/**
835		* Just like fail(reason), but additionally recording (using
836	<	* threadRecordFailure) any AssertionFailedError thrown, so that
837	<	* the current testcase will fail.
836	>	* threadRecordFailure) any AssertionError thrown, so that the
837	>	* current testcase will fail.
838		*/
839		public void threadFail(String reason) {
840		try {
841		fail(reason);
842	<	} catch (AssertionFailedError t) {
843	<	threadRecordFailure(t);
844	<	fail(reason);
842	>	} catch (AssertionError fail) {
843	>	threadRecordFailure(fail);
844	>	throw fail;
845		}
846		}
847
848		/**
849		* Just like assertTrue(b), but additionally recording (using
850	<	* threadRecordFailure) any AssertionFailedError thrown, so that
851	<	* the current testcase will fail.
850	>	* threadRecordFailure) any AssertionError thrown, so that the
851	>	* current testcase will fail.
852		*/
853		public void threadAssertTrue(boolean b) {
854		try {
855		assertTrue(b);
856	<	} catch (AssertionFailedError t) {
857	<	threadRecordFailure(t);
858	<	throw t;
856	>	} catch (AssertionError fail) {
857	>	threadRecordFailure(fail);
858	>	throw fail;
859		}
860		}
861
862		/**
863		* Just like assertFalse(b), but additionally recording (using
864	<	* threadRecordFailure) any AssertionFailedError thrown, so that
865	<	* the current testcase will fail.
864	>	* threadRecordFailure) any AssertionError thrown, so that the
865	>	* current testcase will fail.
866		*/
867		public void threadAssertFalse(boolean b) {
868		try {
869		assertFalse(b);
870	<	} catch (AssertionFailedError t) {
871	<	threadRecordFailure(t);
872	<	throw t;
870	>	} catch (AssertionError fail) {
871	>	threadRecordFailure(fail);
872	>	throw fail;
873		}
874		}
875
876		/**
877		* Just like assertNull(x), but additionally recording (using
878	<	* threadRecordFailure) any AssertionFailedError thrown, so that
879	<	* the current testcase will fail.
878	>	* threadRecordFailure) any AssertionError thrown, so that the
879	>	* current testcase will fail.
880		*/
881		public void threadAssertNull(Object x) {
882		try {
883		assertNull(x);
884	<	} catch (AssertionFailedError t) {
885	<	threadRecordFailure(t);
886	<	throw t;
884	>	} catch (AssertionError fail) {
885	>	threadRecordFailure(fail);
886	>	throw fail;
887		}
888		}
889
890		/**
891		* Just like assertEquals(x, y), but additionally recording (using
892	<	* threadRecordFailure) any AssertionFailedError thrown, so that
893	<	* the current testcase will fail.
892	>	* threadRecordFailure) any AssertionError thrown, so that the
893	>	* current testcase will fail.
894		*/
895		public void threadAssertEquals(long x, long y) {
896		try {
897		assertEquals(x, y);
898	<	} catch (AssertionFailedError t) {
899	<	threadRecordFailure(t);
900	<	throw t;
898	>	} catch (AssertionError fail) {
899	>	threadRecordFailure(fail);
900	>	throw fail;
901		}
902		}
903
904		/**
905		* Just like assertEquals(x, y), but additionally recording (using
906	<	* threadRecordFailure) any AssertionFailedError thrown, so that
907	<	* the current testcase will fail.
906	>	* threadRecordFailure) any AssertionError thrown, so that the
907	>	* current testcase will fail.
908		*/
909		public void threadAssertEquals(Object x, Object y) {
910		try {
911		assertEquals(x, y);
912	<	} catch (AssertionFailedError fail) {
912	>	} catch (AssertionError fail) {
913		threadRecordFailure(fail);
914		throw fail;
915		} catch (Throwable fail) {
#	Line 656 | Line 919 | public class JSR166TestCase extends Test
919
920		/**
921		* Just like assertSame(x, y), but additionally recording (using
922	<	* threadRecordFailure) any AssertionFailedError thrown, so that
923	<	* the current testcase will fail.
922	>	* threadRecordFailure) any AssertionError thrown, so that the
923	>	* current testcase will fail.
924		*/
925		public void threadAssertSame(Object x, Object y) {
926		try {
927		assertSame(x, y);
928	<	} catch (AssertionFailedError fail) {
928	>	} catch (AssertionError fail) {
929		threadRecordFailure(fail);
930		throw fail;
931		}
#	Line 684 | Line 947 | public class JSR166TestCase extends Test
947
948		/**
949		* Records the given exception using {@link #threadRecordFailure},
950	<	* then rethrows the exception, wrapping it in an
951	<	* AssertionFailedError if necessary.
950	>	* then rethrows the exception, wrapping it in an AssertionError
951	>	* if necessary.
952		*/
953		public void threadUnexpectedException(Throwable t) {
954		threadRecordFailure(t);
#	Line 694 | Line 957 | public class JSR166TestCase extends Test
957		throw (RuntimeException) t;
958		else if (t instanceof Error)
959		throw (Error) t;
960	<	else {
961	<	AssertionFailedError afe =
699	<	new AssertionFailedError("unexpected exception: " + t);
700	<	afe.initCause(t);
701	<	throw afe;
702	<	}
960	>	else
961	>	throw new AssertionError("unexpected exception: " + t, t);
962		}
963
964		/**
965		* Delays, via Thread.sleep, for the given millisecond delay, but
966		* if the sleep is shorter than specified, may re-sleep or yield
967	<	* until time elapses.
967	>	* until time elapses.  Ensures that the given time, as measured
968	>	* by System.nanoTime(), has elapsed.
969		*/
970		static void delay(long millis) throws InterruptedException {
971	<	long startTime = System.nanoTime();
972	<	long ns = millis * 1000 * 1000;
973	<	for (;;) {
971	>	long nanos = millis * (1000 * 1000);
972	>	final long wakeupTime = System.nanoTime() + nanos;
973	>	do {
974		if (millis > 0L)
975		Thread.sleep(millis);
976		else // too short to sleep
977		Thread.yield();
978	<	long d = ns - (System.nanoTime() - startTime);
979	<	if (d > 0L)
980	<	millis = d / (1000 * 1000);
981	<	else
982	<	break;
978	>	nanos = wakeupTime - System.nanoTime();
979	>	millis = nanos / (1000 * 1000);
980	>	} while (nanos >= 0L);
981	>	}
982	>
983	>	/**
984	>	* Allows use of try-with-resources with per-test thread pools.
985	>	*/
986	>	class PoolCleaner implements AutoCloseable {
987	>	private final ExecutorService pool;
988	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
989	>	public void close() { joinPool(pool); }
990	>	}
991	>
992	>	/**
993	>	* An extension of PoolCleaner that has an action to release the pool.
994	>	*/
995	>	class PoolCleanerWithReleaser extends PoolCleaner {
996	>	private final Runnable releaser;
997	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
998	>	super(pool);
999	>	this.releaser = releaser;
1000	>	}
1001	>	public void close() {
1002	>	try {
1003	>	releaser.run();
1004	>	} finally {
1005	>	super.close();
1006	>	}
1007		}
1008		}
1009
1010	+	PoolCleaner cleaner(ExecutorService pool) {
1011	+	return new PoolCleaner(pool);
1012	+	}
1013	+
1014	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
1015	+	return new PoolCleanerWithReleaser(pool, releaser);
1016	+	}
1017	+
1018	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1019	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
1020	+	}
1021	+
1022	+	Runnable releaser(final CountDownLatch latch) {
1023	+	return new Runnable() { public void run() {
1024	+	do { latch.countDown(); }
1025	+	while (latch.getCount() > 0);
1026	+	}};
1027	+	}
1028	+
1029	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1030	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1031	+	}
1032	+
1033	+	Runnable releaser(final AtomicBoolean flag) {
1034	+	return new Runnable() { public void run() { flag.set(true); }};
1035	+	}
1036	+
1037		/**
1038		* Waits out termination of a thread pool or fails doing so.
1039		*/
1040	<	void joinPool(ExecutorService exec) {
1040	>	void joinPool(ExecutorService pool) {
1041		try {
1042	<	exec.shutdown();
1043	<	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
1044	<	fail("ExecutorService " + exec +
1045	<	" did not terminate in a timely manner");
1042	>	pool.shutdown();
1043	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1044	>	try {
1045	>	threadFail("ExecutorService " + pool +
1046	>	" did not terminate in a timely manner");
1047	>	} finally {
1048	>	// last resort, for the benefit of subsequent tests
1049	>	pool.shutdownNow();
1050	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1051	>	}
1052	>	}
1053		} catch (SecurityException ok) {
1054		// Allowed in case test doesn't have privs
1055		} catch (InterruptedException fail) {
1056	<	fail("Unexpected InterruptedException");
1056	>	threadFail("Unexpected InterruptedException");
1057		}
1058		}
1059
1060		/**
1061	<	* A debugging tool to print all stack traces, as jstack does.
1061	>	* Like Runnable, but with the freedom to throw anything.
1062	>	* junit folks had the same idea:
1063	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1064		*/
1065	<	static void printAllStackTraces() {
746	<	for (ThreadInfo info :
747	<	ManagementFactory.getThreadMXBean()
748	<	.dumpAllThreads(true, true))
749	<	System.err.print(info);
750	<	}
1065	>	interface Action { public void run() throws Throwable; }
1066
1067		/**
1068	<	* Checks that thread does not terminate within the default
1069	<	* millisecond delay of {@code timeoutMillis()}.
1068	>	* Runs all the given actions in parallel, failing if any fail.
1069	>	* Useful for running multiple variants of tests that are
1070	>	* necessarily individually slow because they must block.
1071		*/
1072	<	void assertThreadStaysAlive(Thread thread) {
1073	<	assertThreadStaysAlive(thread, timeoutMillis());
1072	>	void testInParallel(Action ... actions) {
1073	>	ExecutorService pool = Executors.newCachedThreadPool();
1074	>	try (PoolCleaner cleaner = cleaner(pool)) {
1075	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1076	>	for (final Action action : actions)
1077	>	futures.add(pool.submit(new CheckedRunnable() {
1078	>	public void realRun() throws Throwable { action.run();}}));
1079	>	for (Future<?> future : futures)
1080	>	try {
1081	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1082	>	} catch (ExecutionException ex) {
1083	>	threadUnexpectedException(ex.getCause());
1084	>	} catch (Exception ex) {
1085	>	threadUnexpectedException(ex);
1086	>	}
1087	>	}
1088	>	}
1089	>
1090	>	/** Returns true if thread info might be useful in a thread dump. */
1091	>	static boolean threadOfInterest(ThreadInfo info) {
1092	>	final String name = info.getThreadName();
1093	>	String lockName;
1094	>	if (name == null)
1095	>	return true;
1096	>	if (name.equals("Signal Dispatcher")
1097	>	|| name.equals("WedgedTestDetector"))
1098	>	return false;
1099	>	if (name.equals("Reference Handler")) {
1100	>	// Reference Handler stacktrace changed in JDK-8156500
1101	>	StackTraceElement[] stackTrace; String methodName;
1102	>	if ((stackTrace = info.getStackTrace()) != null
1103	>	&& stackTrace.length > 0
1104	>	&& (methodName = stackTrace[0].getMethodName()) != null
1105	>	&& methodName.equals("waitForReferencePendingList"))
1106	>	return false;
1107	>	// jdk8 Reference Handler stacktrace
1108	>	if ((lockName = info.getLockName()) != null
1109	>	&& lockName.startsWith("java.lang.ref"))
1110	>	return false;
1111	>	}
1112	>	if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1113	>	&& (lockName = info.getLockName()) != null
1114	>	&& lockName.startsWith("java.lang.ref"))
1115	>	return false;
1116	>	if (name.startsWith("ForkJoinPool.commonPool-worker")
1117	>	&& (lockName = info.getLockName()) != null
1118	>	&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1119	>	return false;
1120	>	return true;
1121		}
1122
1123		/**
1124	<	* Checks that thread does not terminate within the given millisecond delay.
1124	>	* A debugging tool to print stack traces of most threads, as jstack does.
1125	>	* Uninteresting threads are filtered out.
1126		*/
1127	<	void assertThreadStaysAlive(Thread thread, long millis) {
1128	<	try {
1129	<	// No need to optimize the failing case via Thread.join.
1130	<	delay(millis);
1131	<	assertTrue(thread.isAlive());
1132	<	} catch (InterruptedException fail) {
1133	<	fail("Unexpected InterruptedException");
1127	>	static void dumpTestThreads() {
1128	>	SecurityManager sm = System.getSecurityManager();
1129	>	if (sm != null) {
1130	>	try {
1131	>	System.setSecurityManager(null);
1132	>	} catch (SecurityException giveUp) {
1133	>	return;
1134	>	}
1135		}
1136	+
1137	+	System.err.println("------ stacktrace dump start ------");
1138	+	for (ThreadInfo info : THREAD_MXBEAN.dumpAllThreads(true, true))
1139	+	if (threadOfInterest(info))
1140	+	System.err.print(info);
1141	+	System.err.println("------ stacktrace dump end ------");
1142	+
1143	+	if (sm != null) System.setSecurityManager(sm);
1144		}
1145
1146		/**
1147	<	* Checks that the threads do not terminate within the default
775	<	* millisecond delay of {@code timeoutMillis()}.
1147	>	* Checks that thread eventually enters the expected blocked thread state.
1148		*/
1149	<	void assertThreadsStayAlive(Thread... threads) {
1150	<	assertThreadsStayAlive(timeoutMillis(), threads);
1149	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1150	>	// always sleep at least 1 ms, with high probability avoiding
1151	>	// transitory states
1152	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1153	>	try { delay(1); }
1154	>	catch (InterruptedException fail) {
1155	>	throw new AssertionError("Unexpected InterruptedException", fail);
1156	>	}
1157	>	Thread.State s = thread.getState();
1158	>	if (s == expected)
1159	>	return;
1160	>	else if (s == Thread.State.TERMINATED)
1161	>	fail("Unexpected thread termination");
1162	>	}
1163	>	fail("timed out waiting for thread to enter thread state " + expected);
1164		}
1165
1166		/**
1167	<	* Checks that the threads do not terminate within the given millisecond delay.
1167	>	* Returns the thread's blocker's class name, if any, else null.
1168		*/
1169	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1170	<	try {
1171	<	// No need to optimize the failing case via Thread.join.
1172	<	delay(millis);
1173	<	for (Thread thread : threads)
1174	<	assertTrue(thread.isAlive());
790	<	} catch (InterruptedException fail) {
791	<	fail("Unexpected InterruptedException");
792	<	}
1169	>	String blockerClassName(Thread thread) {
1170	>	ThreadInfo threadInfo; LockInfo lockInfo;
1171	>	if ((threadInfo = THREAD_MXBEAN.getThreadInfo(thread.getId(), 0)) != null
1172	>	&& (lockInfo = threadInfo.getLockInfo()) != null)
1173	>	return lockInfo.getClassName();
1174	>	return null;
1175		}
1176
1177		/**
#	Line 830 | Line 1212 | public class JSR166TestCase extends Test
1212		}
1213
1214		/**
1215	+	* The maximum number of consecutive spurious wakeups we should
1216	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1217	+	*/
1218	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1219	+
1220	+	/**
1221		* The number of elements to place in collections, arrays, etc.
1222		*/
1223		public static final int SIZE = 20;
#	Line 933 | Line 1321 | public class JSR166TestCase extends Test
1321		}
1322		public void refresh() {}
1323		public String toString() {
1324	<	List<Permission> ps = new ArrayList<Permission>();
1324	>	List<Permission> ps = new ArrayList<>();
1325		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1326		ps.add(e.nextElement());
1327		return "AdjustablePolicy with permissions " + ps;
#	Line 961 | Line 1349 | public class JSR166TestCase extends Test
1349
1350		/**
1351		* Sleeps until the given time has elapsed.
1352	<	* Throws AssertionFailedError if interrupted.
1352	>	* Throws AssertionError if interrupted.
1353		*/
1354	<	void sleep(long millis) {
1354	>	static void sleep(long millis) {
1355		try {
1356		delay(millis);
1357		} catch (InterruptedException fail) {
1358	<	AssertionFailedError afe =
971	<	new AssertionFailedError("Unexpected InterruptedException");
972	<	afe.initCause(fail);
973	<	throw afe;
1358	>	throw new AssertionError("Unexpected InterruptedException", fail);
1359		}
1360		}
1361
1362		/**
1363		* Spin-waits up to the specified number of milliseconds for the given
1364		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1365	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1366		*/
1367	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1368	<	long startTime = System.nanoTime();
1369	<	for (;;) {
1370	<	Thread.State s = thread.getState();
1371	<	if (s == Thread.State.BLOCKED ||
1372	<	s == Thread.State.WAITING ||
1373	<	s == Thread.State.TIMED_WAITING)
1374	<	return;
1375	<	else if (s == Thread.State.TERMINATED)
1367	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1368	>	Callable<Boolean> waitingForGodot) {
1369	>	for (long startTime = 0L;;) {
1370	>	switch (thread.getState()) {
1371	>	default: break;
1372	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1373	>	try {
1374	>	if (waitingForGodot == null || waitingForGodot.call())
1375	>	return;
1376	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1377	>	break;
1378	>	case TERMINATED:
1379		fail("Unexpected thread termination");
1380	+	}
1381	+
1382	+	if (startTime == 0L)
1383	+	startTime = System.nanoTime();
1384		else if (millisElapsedSince(startTime) > timeoutMillis) {
1385	<	threadAssertTrue(thread.isAlive());
1386	<	return;
1385	>	assertTrue(thread.isAlive());
1386	>	if (waitingForGodot == null
1387	>	|| thread.getState() == Thread.State.RUNNABLE)
1388	>	fail("timed out waiting for thread to enter wait state");
1389	>	else
1390	>	fail("timed out waiting for condition, thread state="
1391	>	+ thread.getState());
1392		}
1393		Thread.yield();
1394		}
1395		}
1396
1397		/**
1398	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1399	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1398	>	* Spin-waits up to the specified number of milliseconds for the given
1399	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1400	>	*/
1401	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1402	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1403	>	}
1404	>
1405	>	/**
1406	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1407	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1408		*/
1409		void waitForThreadToEnterWaitState(Thread thread) {
1410	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1410	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1411	>	}
1412	>
1413	>	/**
1414	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1415	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1416	>	* and additionally satisfy the given condition.
1417	>	*/
1418	>	void waitForThreadToEnterWaitState(Thread thread,
1419	>	Callable<Boolean> waitingForGodot) {
1420	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1421	>	}
1422	>
1423	>	/**
1424	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1425	>	* be interrupted.  Clears the interrupt status before returning.
1426	>	*/
1427	>	void awaitInterrupted() {
1428	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1429	>	if (startTime == 0L)
1430	>	startTime = System.nanoTime();
1431	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1432	>	fail("timed out waiting for thread interrupt");
1433	>	Thread.yield();
1434	>	}
1435		}
1436
1437		/**
#	Line 1013 | Line 1443 | public class JSR166TestCase extends Test
1443		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1444		}
1445
1016	–	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1017	–	//         long startTime = System.nanoTime();
1018	–	//         try {
1019	–	//             r.run();
1020	–	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1021	–	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1022	–	//             throw new AssertionFailedError("did not return promptly");
1023	–	//     }
1024	–
1025	–	//     void assertTerminatesPromptly(Runnable r) {
1026	–	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1027	–	//     }
1028	–
1446		/**
1447		* Checks that timed f.get() returns the expected value, and does not
1448		* wait for the timeout to elapse before returning.
1449		*/
1450		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1451		long startTime = System.nanoTime();
1452	+	T actual = null;
1453		try {
1454	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1454	>	actual = f.get(timeoutMillis, MILLISECONDS);
1455		} catch (Throwable fail) { threadUnexpectedException(fail); }
1456	+	assertEquals(expectedValue, actual);
1457		if (millisElapsedSince(startTime) > timeoutMillis/2)
1458	<	throw new AssertionFailedError("timed get did not return promptly");
1458	>	throw new AssertionError("timed get did not return promptly");
1459		}
1460
1461		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1054 | Line 1473 | public class JSR166TestCase extends Test
1473		}
1474
1475		/**
1476	+	* Returns a new started daemon Thread running the given action,
1477	+	* wrapped in a CheckedRunnable.
1478	+	*/
1479	+	Thread newStartedThread(Action action) {
1480	+	return newStartedThread(checkedRunnable(action));
1481	+	}
1482	+
1483	+	/**
1484		* Waits for the specified time (in milliseconds) for the thread
1485		* to terminate (using {@link Thread#join(long)}), else interrupts
1486		* the thread (in the hope that it may terminate later) and fails.
1487		*/
1488	<	void awaitTermination(Thread t, long timeoutMillis) {
1488	>	void awaitTermination(Thread thread, long timeoutMillis) {
1489		try {
1490	<	t.join(timeoutMillis);
1490	>	thread.join(timeoutMillis);
1491		} catch (InterruptedException fail) {
1492		threadUnexpectedException(fail);
1493	<	} finally {
1494	<	if (t.getState() != Thread.State.TERMINATED) {
1495	<	t.interrupt();
1496	<	fail("Test timed out");
1493	>	}
1494	>	if (thread.getState() != Thread.State.TERMINATED) {
1495	>	String detail = String.format(
1496	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1497	>	thread, thread.getState());
1498	>	try {
1499	>	threadFail(detail);
1500	>	} finally {
1501	>	// Interrupt thread __after__ having reported its stack trace
1502	>	thread.interrupt();
1503		}
1504		}
1505		}
#	Line 1094 | Line 1527 | public class JSR166TestCase extends Test
1527		}
1528		}
1529
1530	<	public abstract class RunnableShouldThrow implements Runnable {
1531	<	protected abstract void realRun() throws Throwable;
1532	<
1533	<	final Class<?> exceptionClass;
1534	<
1102	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1103	<	this.exceptionClass = exceptionClass;
1104	<	}
1105	<
1106	<	public final void run() {
1107	<	try {
1108	<	realRun();
1109	<	threadShouldThrow(exceptionClass.getSimpleName());
1110	<	} catch (Throwable t) {
1111	<	if (! exceptionClass.isInstance(t))
1112	<	threadUnexpectedException(t);
1113	<	}
1114	<	}
1530	>	Runnable checkedRunnable(Action action) {
1531	>	return new CheckedRunnable() {
1532	>	public void realRun() throws Throwable {
1533	>	action.run();
1534	>	}};
1535		}
1536
1537		public abstract class ThreadShouldThrow extends Thread {
#	Line 1126 | Line 1546 | public class JSR166TestCase extends Test
1546		public final void run() {
1547		try {
1548		realRun();
1129	–	threadShouldThrow(exceptionClass.getSimpleName());
1549		} catch (Throwable t) {
1550		if (! exceptionClass.isInstance(t))
1551		threadUnexpectedException(t);
1552	+	return;
1553		}
1554	+	threadShouldThrow(exceptionClass.getSimpleName());
1555		}
1556		}
1557
#	Line 1140 | Line 1561 | public class JSR166TestCase extends Test
1561		public final void run() {
1562		try {
1563		realRun();
1143	–	threadShouldThrow("InterruptedException");
1564		} catch (InterruptedException success) {
1565		threadAssertFalse(Thread.interrupted());
1566	+	return;
1567		} catch (Throwable fail) {
1568		threadUnexpectedException(fail);
1569		}
1570	+	threadShouldThrow("InterruptedException");
1571		}
1572		}
1573
#	Line 1157 | Line 1579 | public class JSR166TestCase extends Test
1579		return realCall();
1580		} catch (Throwable fail) {
1581		threadUnexpectedException(fail);
1160	–	return null;
1582		}
1583	<	}
1163	<	}
1164	<
1165	<	public abstract class CheckedInterruptedCallable<T>
1166	<	implements Callable<T> {
1167	<	protected abstract T realCall() throws Throwable;
1168	<
1169	<	public final T call() {
1170	<	try {
1171	<	T result = realCall();
1172	<	threadShouldThrow("InterruptedException");
1173	<	return result;
1174	<	} catch (InterruptedException success) {
1175	<	threadAssertFalse(Thread.interrupted());
1176	<	} catch (Throwable fail) {
1177	<	threadUnexpectedException(fail);
1178	<	}
1179	<	return null;
1583	>	throw new AssertionError("unreached");
1584		}
1585		}
1586
#	Line 1191 | Line 1595 | public class JSR166TestCase extends Test
1595		public static final String TEST_STRING = "a test string";
1596
1597		public static class StringTask implements Callable<String> {
1598	<	public String call() { return TEST_STRING; }
1598	>	final String value;
1599	>	public StringTask() { this(TEST_STRING); }
1600	>	public StringTask(String value) { this.value = value; }
1601	>	public String call() { return value; }
1602		}
1603
1604		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 1204 | Line 1611 | public class JSR166TestCase extends Test
1611		}};
1612		}
1613
1614	<	public Runnable awaiter(final CountDownLatch latch) {
1614	>	public Runnable countDowner(final CountDownLatch latch) {
1615		return new CheckedRunnable() {
1616		public void realRun() throws InterruptedException {
1617	<	await(latch);
1617	>	latch.countDown();
1618		}};
1619		}
1620
1621	<	public void await(CountDownLatch latch) {
1621	>	class LatchAwaiter extends CheckedRunnable {
1622	>	static final int NEW = 0;
1623	>	static final int RUNNING = 1;
1624	>	static final int DONE = 2;
1625	>	final CountDownLatch latch;
1626	>	int state = NEW;
1627	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1628	>	public void realRun() throws InterruptedException {
1629	>	state = 1;
1630	>	await(latch);
1631	>	state = 2;
1632	>	}
1633	>	}
1634	>
1635	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1636	>	return new LatchAwaiter(latch);
1637	>	}
1638	>
1639	>	public void await(CountDownLatch latch, long timeoutMillis) {
1640	>	boolean timedOut = false;
1641		try {
1642	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1642	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1643		} catch (Throwable fail) {
1644		threadUnexpectedException(fail);
1645		}
1646	+	if (timedOut)
1647	+	fail("timed out waiting for CountDownLatch for "
1648	+	+ (timeoutMillis/1000) + " sec");
1649	+	}
1650	+
1651	+	public void await(CountDownLatch latch) {
1652	+	await(latch, LONG_DELAY_MS);
1653		}
1654
1655		public void await(Semaphore semaphore) {
1656	+	boolean timedOut = false;
1657		try {
1658	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1658	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1659	>	} catch (Throwable fail) {
1660	>	threadUnexpectedException(fail);
1661	>	}
1662	>	if (timedOut)
1663	>	fail("timed out waiting for Semaphore for "
1664	>	+ (LONG_DELAY_MS/1000) + " sec");
1665	>	}
1666	>
1667	>	public void await(CyclicBarrier barrier) {
1668	>	try {
1669	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1670		} catch (Throwable fail) {
1671		threadUnexpectedException(fail);
1672		}
#	Line 1241 | Line 1686 | public class JSR166TestCase extends Test
1686		//         long startTime = System.nanoTime();
1687		//         while (!flag.get()) {
1688		//             if (millisElapsedSince(startTime) > timeoutMillis)
1689	<	//                 throw new AssertionFailedError("timed out");
1689	>	//                 throw new AssertionError("timed out");
1690		//             Thread.yield();
1691		//         }
1692		//     }
#	Line 1250 | Line 1695 | public class JSR166TestCase extends Test
1695		public String call() { throw new NullPointerException(); }
1696		}
1697
1253	–	public static class CallableOne implements Callable<Integer> {
1254	–	public Integer call() { return one; }
1255	–	}
1256	–
1257	–	public class ShortRunnable extends CheckedRunnable {
1258	–	protected void realRun() throws Throwable {
1259	–	delay(SHORT_DELAY_MS);
1260	–	}
1261	–	}
1262	–
1263	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1264	–	protected void realRun() throws InterruptedException {
1265	–	delay(SHORT_DELAY_MS);
1266	–	}
1267	–	}
1268	–
1269	–	public class SmallRunnable extends CheckedRunnable {
1270	–	protected void realRun() throws Throwable {
1271	–	delay(SMALL_DELAY_MS);
1272	–	}
1273	–	}
1274	–
1275	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1276	–	protected void realRun() {
1277	–	try {
1278	–	delay(SMALL_DELAY_MS);
1279	–	} catch (InterruptedException ok) {}
1280	–	}
1281	–	}
1282	–
1283	–	public class SmallCallable extends CheckedCallable {
1284	–	protected Object realCall() throws InterruptedException {
1285	–	delay(SMALL_DELAY_MS);
1286	–	return Boolean.TRUE;
1287	–	}
1288	–	}
1289	–
1290	–	public class MediumRunnable extends CheckedRunnable {
1291	–	protected void realRun() throws Throwable {
1292	–	delay(MEDIUM_DELAY_MS);
1293	–	}
1294	–	}
1295	–
1296	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1297	–	protected void realRun() throws InterruptedException {
1298	–	delay(MEDIUM_DELAY_MS);
1299	–	}
1300	–	}
1301	–
1698		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1699		return new CheckedRunnable() {
1700		protected void realRun() {
#	Line 1308 | Line 1704 | public class JSR166TestCase extends Test
1704		}};
1705		}
1706
1311	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1312	–	protected void realRun() {
1313	–	try {
1314	–	delay(MEDIUM_DELAY_MS);
1315	–	} catch (InterruptedException ok) {}
1316	–	}
1317	–	}
1318	–
1319	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1320	–	protected void realRun() {
1321	–	try {
1322	–	delay(LONG_DELAY_MS);
1323	–	} catch (InterruptedException ok) {}
1324	–	}
1325	–	}
1326	–
1707		/**
1708		* For use as ThreadFactory in constructors
1709		*/
#	Line 1337 | Line 1717 | public class JSR166TestCase extends Test
1717		boolean isDone();
1718		}
1719
1340	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1341	–	return new TrackedRunnable() {
1342	–	private volatile boolean done = false;
1343	–	public boolean isDone() { return done; }
1344	–	public void run() {
1345	–	try {
1346	–	delay(timeoutMillis);
1347	–	done = true;
1348	–	} catch (InterruptedException ok) {}
1349	–	}
1350	–	};
1351	–	}
1352	–
1353	–	public static class TrackedShortRunnable implements Runnable {
1354	–	public volatile boolean done = false;
1355	–	public void run() {
1356	–	try {
1357	–	delay(SHORT_DELAY_MS);
1358	–	done = true;
1359	–	} catch (InterruptedException ok) {}
1360	–	}
1361	–	}
1362	–
1363	–	public static class TrackedSmallRunnable implements Runnable {
1364	–	public volatile boolean done = false;
1365	–	public void run() {
1366	–	try {
1367	–	delay(SMALL_DELAY_MS);
1368	–	done = true;
1369	–	} catch (InterruptedException ok) {}
1370	–	}
1371	–	}
1372	–
1373	–	public static class TrackedMediumRunnable implements Runnable {
1374	–	public volatile boolean done = false;
1375	–	public void run() {
1376	–	try {
1377	–	delay(MEDIUM_DELAY_MS);
1378	–	done = true;
1379	–	} catch (InterruptedException ok) {}
1380	–	}
1381	–	}
1382	–
1383	–	public static class TrackedLongRunnable implements Runnable {
1384	–	public volatile boolean done = false;
1385	–	public void run() {
1386	–	try {
1387	–	delay(LONG_DELAY_MS);
1388	–	done = true;
1389	–	} catch (InterruptedException ok) {}
1390	–	}
1391	–	}
1392	–
1720		public static class TrackedNoOpRunnable implements Runnable {
1721		public volatile boolean done = false;
1722		public void run() {
#	Line 1397 | Line 1724 | public class JSR166TestCase extends Test
1724		}
1725		}
1726
1400	–	public static class TrackedCallable implements Callable {
1401	–	public volatile boolean done = false;
1402	–	public Object call() {
1403	–	try {
1404	–	delay(SMALL_DELAY_MS);
1405	–	done = true;
1406	–	} catch (InterruptedException ok) {}
1407	–	return Boolean.TRUE;
1408	–	}
1409	–	}
1410	–
1727		/**
1728		* Analog of CheckedRunnable for RecursiveAction
1729		*/
#	Line 1434 | Line 1750 | public class JSR166TestCase extends Test
1750		return realCompute();
1751		} catch (Throwable fail) {
1752		threadUnexpectedException(fail);
1437	–	return null;
1753		}
1754	+	throw new AssertionError("unreached");
1755		}
1756		}
1757
#	Line 1449 | Line 1765 | public class JSR166TestCase extends Test
1765
1766		/**
1767		* A CyclicBarrier that uses timed await and fails with
1768	<	* AssertionFailedErrors instead of throwing checked exceptions.
1768	>	* AssertionErrors instead of throwing checked exceptions.
1769		*/
1770	<	public class CheckedBarrier extends CyclicBarrier {
1770	>	public static class CheckedBarrier extends CyclicBarrier {
1771		public CheckedBarrier(int parties) { super(parties); }
1772
1773		public int await() {
1774		try {
1775		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1776		} catch (TimeoutException timedOut) {
1777	<	throw new AssertionFailedError("timed out");
1777	>	throw new AssertionError("timed out");
1778		} catch (Exception fail) {
1779	<	AssertionFailedError afe =
1464	<	new AssertionFailedError("Unexpected exception: " + fail);
1465	<	afe.initCause(fail);
1466	<	throw afe;
1779	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1780		}
1781		}
1782		}
#	Line 1474 | Line 1787 | public class JSR166TestCase extends Test
1787		assertEquals(0, q.size());
1788		assertNull(q.peek());
1789		assertNull(q.poll());
1790	<	assertNull(q.poll(0, MILLISECONDS));
1790	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1791		assertEquals(q.toString(), "[]");
1792		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1793		assertFalse(q.iterator().hasNext());
#	Line 1515 | Line 1828 | public class JSR166TestCase extends Test
1828		}
1829		}
1830
1831	+	void assertImmutable(Object o) {
1832	+	if (o instanceof Collection) {
1833	+	assertThrows(
1834	+	UnsupportedOperationException.class,
1835	+	() -> ((Collection) o).add(null));
1836	+	}
1837	+	}
1838	+
1839		@SuppressWarnings("unchecked")
1840		<T> T serialClone(T o) {
1841	+	T clone = null;
1842		try {
1843		ObjectInputStream ois = new ObjectInputStream
1844		(new ByteArrayInputStream(serialBytes(o)));
1845	<	T clone = (T) ois.readObject();
1524	<	assertSame(o.getClass(), clone.getClass());
1525	<	return clone;
1845	>	clone = (T) ois.readObject();
1846		} catch (Throwable fail) {
1847		threadUnexpectedException(fail);
1848	+	}
1849	+	if (o == clone) assertImmutable(o);
1850	+	else assertSame(o.getClass(), clone.getClass());
1851	+	return clone;
1852	+	}
1853	+
1854	+	/**
1855	+	* A version of serialClone that leaves error handling (for
1856	+	* e.g. NotSerializableException) up to the caller.
1857	+	*/
1858	+	@SuppressWarnings("unchecked")
1859	+	<T> T serialClonePossiblyFailing(T o)
1860	+	throws ReflectiveOperationException, java.io.IOException {
1861	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1862	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1863	+	oos.writeObject(o);
1864	+	oos.flush();
1865	+	oos.close();
1866	+	ObjectInputStream ois = new ObjectInputStream
1867	+	(new ByteArrayInputStream(bos.toByteArray()));
1868	+	T clone = (T) ois.readObject();
1869	+	if (o == clone) assertImmutable(o);
1870	+	else assertSame(o.getClass(), clone.getClass());
1871	+	return clone;
1872	+	}
1873	+
1874	+	/**
1875	+	* If o implements Cloneable and has a public clone method,
1876	+	* returns a clone of o, else null.
1877	+	*/
1878	+	@SuppressWarnings("unchecked")
1879	+	<T> T cloneableClone(T o) {
1880	+	if (!(o instanceof Cloneable)) return null;
1881	+	final T clone;
1882	+	try {
1883	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1884	+	} catch (NoSuchMethodException ok) {
1885		return null;
1886	+	} catch (ReflectiveOperationException unexpected) {
1887	+	throw new Error(unexpected);
1888		}
1889	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1890	+	assertSame(o.getClass(), clone.getClass());
1891	+	return clone;
1892		}
1893
1894		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1895	<	Runnable... throwingActions) {
1896	<	for (Runnable throwingAction : throwingActions) {
1895	>	Action... throwingActions) {
1896	>	for (Action throwingAction : throwingActions) {
1897		boolean threw = false;
1898		try { throwingAction.run(); }
1899		catch (Throwable t) {
1900		threw = true;
1901	<	if (!expectedExceptionClass.isInstance(t)) {
1902	<	AssertionFailedError afe =
1903	<	new AssertionFailedError
1904	<	("Expected " + expectedExceptionClass.getName() +
1905	<	", got " + t.getClass().getName());
1544	<	afe.initCause(t);
1545	<	threadUnexpectedException(afe);
1546	<	}
1901	>	if (!expectedExceptionClass.isInstance(t))
1902	>	throw new AssertionError(
1903	>	"Expected " + expectedExceptionClass.getName() +
1904	>	", got " + t.getClass().getName(),
1905	>	t);
1906		}
1907		if (!threw)
1908		shouldThrow(expectedExceptionClass.getName());
#	Line 1557 | Line 1916 | public class JSR166TestCase extends Test
1916		} catch (NoSuchElementException success) {}
1917		assertFalse(it.hasNext());
1918		}
1919	+
1920	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1921	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1922	+	}
1923	+
1924	+	public Runnable runnableThrowing(final RuntimeException ex) {
1925	+	return new Runnable() { public void run() { throw ex; }};
1926	+	}
1927	+
1928	+	/** A reusable thread pool to be shared by tests. */
1929	+	static final ExecutorService cachedThreadPool =
1930	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1931	+	1000L, MILLISECONDS,
1932	+	new SynchronousQueue<Runnable>());
1933	+
1934	+	static <T> void shuffle(T[] array) {
1935	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1936	+	}
1937	+
1938	+	/**
1939	+	* Returns the same String as would be returned by {@link
1940	+	* Object#toString}, whether or not the given object's class
1941	+	* overrides toString().
1942	+	*
1943	+	* @see System#identityHashCode
1944	+	*/
1945	+	static String identityString(Object x) {
1946	+	return x.getClass().getName()
1947	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1948	+	}
1949	+
1950	+	// --- Shared assertions for Executor tests ---
1951	+
1952	+	/**
1953	+	* Returns maximum number of tasks that can be submitted to given
1954	+	* pool (with bounded queue) before saturation (when submission
1955	+	* throws RejectedExecutionException).
1956	+	*/
1957	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1958	+	BlockingQueue<Runnable> q = pool.getQueue();
1959	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1960	+	}
1961	+
1962	+	@SuppressWarnings("FutureReturnValueIgnored")
1963	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1964	+	try {
1965	+	e.execute((Runnable) null);
1966	+	shouldThrow();
1967	+	} catch (NullPointerException success) {}
1968	+
1969	+	if (! (e instanceof ExecutorService)) return;
1970	+	ExecutorService es = (ExecutorService) e;
1971	+	try {
1972	+	es.submit((Runnable) null);
1973	+	shouldThrow();
1974	+	} catch (NullPointerException success) {}
1975	+	try {
1976	+	es.submit((Runnable) null, Boolean.TRUE);
1977	+	shouldThrow();
1978	+	} catch (NullPointerException success) {}
1979	+	try {
1980	+	es.submit((Callable) null);
1981	+	shouldThrow();
1982	+	} catch (NullPointerException success) {}
1983	+
1984	+	if (! (e instanceof ScheduledExecutorService)) return;
1985	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1986	+	try {
1987	+	ses.schedule((Runnable) null,
1988	+	randomTimeout(), randomTimeUnit());
1989	+	shouldThrow();
1990	+	} catch (NullPointerException success) {}
1991	+	try {
1992	+	ses.schedule((Callable) null,
1993	+	randomTimeout(), randomTimeUnit());
1994	+	shouldThrow();
1995	+	} catch (NullPointerException success) {}
1996	+	try {
1997	+	ses.scheduleAtFixedRate((Runnable) null,
1998	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1999	+	shouldThrow();
2000	+	} catch (NullPointerException success) {}
2001	+	try {
2002	+	ses.scheduleWithFixedDelay((Runnable) null,
2003	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2004	+	shouldThrow();
2005	+	} catch (NullPointerException success) {}
2006	+	}
2007	+
2008	+	void setRejectedExecutionHandler(
2009	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
2010	+	p.setRejectedExecutionHandler(handler);
2011	+	assertSame(handler, p.getRejectedExecutionHandler());
2012	+	}
2013	+
2014	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
2015	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
2016	+	final long savedTaskCount = p.getTaskCount();
2017	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
2018	+	final int savedQueueSize = p.getQueue().size();
2019	+	final boolean stock = (p.getClass().getClassLoader() == null);
2020	+
2021	+	Runnable r = () -> {};
2022	+	Callable<Boolean> c = () -> Boolean.TRUE;
2023	+
2024	+	class Recorder implements RejectedExecutionHandler {
2025	+	public volatile Runnable r = null;
2026	+	public volatile ThreadPoolExecutor p = null;
2027	+	public void reset() { r = null; p = null; }
2028	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2029	+	assertNull(this.r);
2030	+	assertNull(this.p);
2031	+	this.r = r;
2032	+	this.p = p;
2033	+	}
2034	+	}
2035	+
2036	+	// check custom handler is invoked exactly once per task
2037	+	Recorder recorder = new Recorder();
2038	+	setRejectedExecutionHandler(p, recorder);
2039	+	for (int i = 2; i--> 0; ) {
2040	+	recorder.reset();
2041	+	p.execute(r);
2042	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2043	+	assertSame(r, recorder.r);
2044	+	assertSame(p, recorder.p);
2045	+
2046	+	recorder.reset();
2047	+	assertFalse(p.submit(r).isDone());
2048	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2049	+	assertSame(p, recorder.p);
2050	+
2051	+	recorder.reset();
2052	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2053	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2054	+	assertSame(p, recorder.p);
2055	+
2056	+	recorder.reset();
2057	+	assertFalse(p.submit(c).isDone());
2058	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2059	+	assertSame(p, recorder.p);
2060	+
2061	+	if (p instanceof ScheduledExecutorService) {
2062	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2063	+	ScheduledFuture<?> future;
2064	+
2065	+	recorder.reset();
2066	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2067	+	assertFalse(future.isDone());
2068	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2069	+	assertSame(p, recorder.p);
2070	+
2071	+	recorder.reset();
2072	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2073	+	assertFalse(future.isDone());
2074	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2075	+	assertSame(p, recorder.p);
2076	+
2077	+	recorder.reset();
2078	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2079	+	assertFalse(future.isDone());
2080	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2081	+	assertSame(p, recorder.p);
2082	+
2083	+	recorder.reset();
2084	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2085	+	assertFalse(future.isDone());
2086	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2087	+	assertSame(p, recorder.p);
2088	+	}
2089	+	}
2090	+
2091	+	// Checking our custom handler above should be sufficient, but
2092	+	// we add some integration tests of standard handlers.
2093	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2094	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2095	+
2096	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2097	+	try {
2098	+	p.execute(setThread);
2099	+	shouldThrow();
2100	+	} catch (RejectedExecutionException success) {}
2101	+	assertNull(thread.get());
2102	+
2103	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2104	+	p.execute(setThread);
2105	+	assertNull(thread.get());
2106	+
2107	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2108	+	p.execute(setThread);
2109	+	if (p.isShutdown())
2110	+	assertNull(thread.get());
2111	+	else
2112	+	assertSame(Thread.currentThread(), thread.get());
2113	+
2114	+	setRejectedExecutionHandler(p, savedHandler);
2115	+
2116	+	// check that pool was not perturbed by handlers
2117	+	assertEquals(savedTaskCount, p.getTaskCount());
2118	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2119	+	assertEquals(savedQueueSize, p.getQueue().size());
2120	+	}
2121	+
2122	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2123	+	assertEquals(x, y);
2124	+	assertEquals(y, x);
2125	+	assertEquals(x.isEmpty(), y.isEmpty());
2126	+	assertEquals(x.size(), y.size());
2127	+	if (x instanceof List) {
2128	+	assertEquals(x.toString(), y.toString());
2129	+	}
2130	+	if (x instanceof List || x instanceof Set) {
2131	+	assertEquals(x.hashCode(), y.hashCode());
2132	+	}
2133	+	if (x instanceof List || x instanceof Deque) {
2134	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2135	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2136	+	y.toArray(new Object[0])));
2137	+	}
2138	+	}
2139	+
2140	+	/**
2141	+	* A weaker form of assertCollectionsEquals which does not insist
2142	+	* that the two collections satisfy Object#equals(Object), since
2143	+	* they may use identity semantics as Deques do.
2144	+	*/
2145	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2146	+	if (x instanceof List || x instanceof Set)
2147	+	assertCollectionsEquals(x, y);
2148	+	else {
2149	+	assertEquals(x.isEmpty(), y.isEmpty());
2150	+	assertEquals(x.size(), y.size());
2151	+	assertEquals(new HashSet(x), new HashSet(y));
2152	+	if (x instanceof Deque) {
2153	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2154	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2155	+	y.toArray(new Object[0])));
2156	+	}
2157	+	}
2158	+	}
2159		}

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