ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.100 by jsr166, Wed Feb 6 16:55:50 2013 UTC vs.
Revision 1.256 by jsr166, Sun Aug 11 22:29:26 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	<	import junit.framework.*;
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;
60	+	import java.security.Permissions;
61	+	import java.security.Policy;
62	+	import java.security.ProtectionDomain;
63	+	import java.security.SecurityPermission;
64		import java.util.ArrayList;
65		import java.util.Arrays;
66	+	import java.util.Collection;
67	+	import java.util.Collections;
68		import java.util.Date;
69	+	import java.util.Deque;
70		import java.util.Enumeration;
71	+	import java.util.HashSet;
72	+	import java.util.Iterator;
73		import java.util.List;
74		import java.util.NoSuchElementException;
75		import java.util.PropertyPermission;
76	<	import java.util.concurrent.*;
76	>	import java.util.Set;
77	>	import java.util.concurrent.BlockingQueue;
78	>	import java.util.concurrent.Callable;
79	>	import java.util.concurrent.CountDownLatch;
80	>	import java.util.concurrent.CyclicBarrier;
81	>	import java.util.concurrent.ExecutionException;
82	>	import java.util.concurrent.Executor;
83	>	import java.util.concurrent.Executors;
84	>	import java.util.concurrent.ExecutorService;
85	>	import java.util.concurrent.ForkJoinPool;
86	>	import java.util.concurrent.Future;
87	>	import java.util.concurrent.FutureTask;
88	>	import java.util.concurrent.RecursiveAction;
89	>	import java.util.concurrent.RecursiveTask;
90	>	import java.util.concurrent.RejectedExecutionException;
91	>	import java.util.concurrent.RejectedExecutionHandler;
92	>	import java.util.concurrent.Semaphore;
93	>	import java.util.concurrent.ScheduledExecutorService;
94	>	import java.util.concurrent.ScheduledFuture;
95	>	import java.util.concurrent.SynchronousQueue;
96	>	import java.util.concurrent.ThreadFactory;
97	>	import java.util.concurrent.ThreadLocalRandom;
98	>	import java.util.concurrent.ThreadPoolExecutor;
99	>	import java.util.concurrent.TimeUnit;
100	>	import java.util.concurrent.TimeoutException;
101		import java.util.concurrent.atomic.AtomicBoolean;
102		import java.util.concurrent.atomic.AtomicReference;
103	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
104	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
105	<	import java.security.CodeSource;
106	<	import java.security.Permission;
107	<	import java.security.PermissionCollection;
108	<	import java.security.Permissions;
33	<	import java.security.Policy;
34	<	import java.security.ProtectionDomain;
35	<	import java.security.SecurityPermission;
103	>	import java.util.regex.Pattern;
104	>
105	>	import junit.framework.Test;
106	>	import junit.framework.TestCase;
107	>	import junit.framework.TestResult;
108	>	import junit.framework.TestSuite;
109
110		/**
111		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 44 | Line 117 | import java.security.SecurityPermission;
117		*
118		* <ol>
119		*
120	<	* <li> All assertions in code running in generated threads must use
121	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
122	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
123	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
124	<	* particularly recommended) for other code to use these forms too.
125	<	* Only the most typically used JUnit assertion methods are defined
126	<	* this way, but enough to live with.</li>
120	>	* <li>All code not running in the main test thread (manually spawned threads
121	>	* or the common fork join pool) must be checked for failure (and completion!).
122	>	* Mechanisms that can be used to ensure this are:
123	>	*   <ol>
124	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
125	>	*    that the task completed normally, which is checked before returning from
126	>	*    the test method in the main thread.
127	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
128	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
129	>	*    Only the most typically used JUnit assertion methods are defined
130	>	*    this way, but enough to live with.
131	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
132	>	*    or {@link #threadRecordFailure}.
133	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
134	>	*   </ol>
135		*
136	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
136	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
137		* to invoke {@code super.setUp} and {@code super.tearDown} within
138		* them. These methods are used to clear and check for thread
139	<	* assertion failures.</li>
139	>	* assertion failures.
140		*
141		* <li>All delays and timeouts must use one of the constants {@code
142		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 66 | Line 147 | import java.security.SecurityPermission;
147		* is always discriminable as larger than SHORT and smaller than
148		* MEDIUM.  And so on. These constants are set to conservative values,
149		* but even so, if there is ever any doubt, they can all be increased
150	<	* in one spot to rerun tests on slower platforms.</li>
150	>	* in one spot to rerun tests on slower platforms.
151		*
152	<	* <li> All threads generated must be joined inside each test case
152	>	* <li>All threads generated must be joined inside each test case
153		* method (or {@code fail} to do so) before returning from the
154		* method. The {@code joinPool} method can be used to do this when
155	<	* using Executors.</li>
155	>	* using Executors.
156		*
157		* </ol>
158		*
159		* <p><b>Other notes</b>
160		* <ul>
161		*
162	<	* <li> Usually, there is one testcase method per JSR166 method
162	>	* <li>Usually, there is one testcase method per JSR166 method
163		* covering "normal" operation, and then as many exception-testing
164		* methods as there are exceptions the method can throw. Sometimes
165		* there are multiple tests per JSR166 method when the different
166		* "normal" behaviors differ significantly. And sometimes testcases
167	<	* cover multiple methods when they cannot be tested in
87	<	* isolation.</li>
167	>	* cover multiple methods when they cannot be tested in isolation.
168		*
169	<	* <li> The documentation style for testcases is to provide as javadoc
169	>	* <li>The documentation style for testcases is to provide as javadoc
170		* a simple sentence or two describing the property that the testcase
171		* method purports to test. The javadocs do not say anything about how
172	<	* the property is tested. To find out, read the code.</li>
172	>	* the property is tested. To find out, read the code.
173		*
174	<	* <li> These tests are "conformance tests", and do not attempt to
174	>	* <li>These tests are "conformance tests", and do not attempt to
175		* test throughput, latency, scalability or other performance factors
176		* (see the separate "jtreg" tests for a set intended to check these
177		* for the most central aspects of functionality.) So, most tests use
178		* the smallest sensible numbers of threads, collection sizes, etc
179	<	* needed to check basic conformance.</li>
179	>	* needed to check basic conformance.
180		*
181		* <li>The test classes currently do not declare inclusion in
182		* any particular package to simplify things for people integrating
183	<	* them in TCK test suites.</li>
183	>	* them in TCK test suites.
184		*
185	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
186	<	* runs all JSR166 unit tests.</li>
185	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
186	>	* runs all JSR166 unit tests.
187		*
188		* </ul>
189		*/
#	Line 115 | Line 195 | public class JSR166TestCase extends Test
195		Boolean.getBoolean("jsr166.expensiveTests");
196
197		/**
198	+	* If true, also run tests that are not part of the official tck
199	+	* because they test unspecified implementation details.
200	+	*/
201	+	protected static final boolean testImplementationDetails =
202	+	Boolean.getBoolean("jsr166.testImplementationDetails");
203	+
204	+	/**
205		* If true, report on stdout all "slow" tests, that is, ones that
206		* take more than profileThreshold milliseconds to execute.
207		*/
#	Line 128 | Line 215 | public class JSR166TestCase extends Test
215		private static final long profileThreshold =
216		Long.getLong("jsr166.profileThreshold", 100);
217
218	+	/**
219	+	* The number of repetitions per test (for tickling rare bugs).
220	+	*/
221	+	private static final int runsPerTest =
222	+	Integer.getInteger("jsr166.runsPerTest", 1);
223	+
224	+	/**
225	+	* The number of repetitions of the test suite (for finding leaks?).
226	+	*/
227	+	private static final int suiteRuns =
228	+	Integer.getInteger("jsr166.suiteRuns", 1);
229	+
230	+	/**
231	+	* Returns the value of the system property, or NaN if not defined.
232	+	*/
233	+	private static float systemPropertyValue(String name) {
234	+	String floatString = System.getProperty(name);
235	+	if (floatString == null)
236	+	return Float.NaN;
237	+	try {
238	+	return Float.parseFloat(floatString);
239	+	} catch (NumberFormatException ex) {
240	+	throw new IllegalArgumentException(
241	+	String.format("Bad float value in system property %s=%s",
242	+	name, floatString));
243	+	}
244	+	}
245	+
246	+	/**
247	+	* The scaling factor to apply to standard delays used in tests.
248	+	* May be initialized from any of:
249	+	* - the "jsr166.delay.factor" system property
250	+	* - the "test.timeout.factor" system property (as used by jtreg)
251	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
252	+	* - hard-coded fuzz factor when using a known slowpoke VM
253	+	*/
254	+	private static final float delayFactor = delayFactor();
255	+
256	+	private static float delayFactor() {
257	+	float x;
258	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
259	+	return x;
260	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
261	+	return x;
262	+	String prop = System.getProperty("java.vm.version");
263	+	if (prop != null && prop.matches(".*debug.*"))
264	+	return 4.0f; // How much slower is fastdebug than product?!
265	+	return 1.0f;
266	+	}
267	+
268	+	public JSR166TestCase() { super(); }
269	+	public JSR166TestCase(String name) { super(name); }
270	+
271	+	/**
272	+	* A filter for tests to run, matching strings of the form
273	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
274	+	* Usefully combined with jsr166.runsPerTest.
275	+	*/
276	+	private static final Pattern methodFilter = methodFilter();
277	+
278	+	private static Pattern methodFilter() {
279	+	String regex = System.getProperty("jsr166.methodFilter");
280	+	return (regex == null) ? null : Pattern.compile(regex);
281	+	}
282	+
283	+	// Instrumentation to debug very rare, but very annoying hung test runs.
284	+	static volatile TestCase currentTestCase;
285	+	// static volatile int currentRun = 0;
286	+	static {
287	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
288	+	// Avoid spurious reports with enormous runsPerTest.
289	+	// A single test case run should never take more than 1 second.
290	+	// But let's cap it at the high end too ...
291	+	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
292	+	* Math.max((int) delayFactor, 1);
293	+	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
294	+	for (TestCase lastTestCase = currentTestCase;;) {
295	+	try { MINUTES.sleep(timeoutMinutes); }
296	+	catch (InterruptedException unexpected) { break; }
297	+	if (lastTestCase == currentTestCase) {
298	+	System.err.printf(
299	+	"Looks like we're stuck running test: %s%n",
300	+	lastTestCase);
301	+	//                     System.err.printf(
302	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
303	+	//                         lastTestCase, currentRun, runsPerTest);
304	+	//                     System.err.println("availableProcessors=" +
305	+	//                         Runtime.getRuntime().availableProcessors());
306	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
307	+	dumpTestThreads();
308	+	// one stack dump is probably enough; more would be spam
309	+	break;
310	+	}
311	+	lastTestCase = currentTestCase;
312	+	}}};
313	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
314	+	thread.setDaemon(true);
315	+	thread.start();
316	+	}
317	+
318	+	//     public static String cpuModel() {
319	+	//         try {
320	+	//             java.util.regex.Matcher matcher
321	+	//               = Pattern.compile("model name\\s*: (.*)")
322	+	//                 .matcher(new String(
323	+	//                     java.nio.file.Files.readAllBytes(
324	+	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
325	+	//             matcher.find();
326	+	//             return matcher.group(1);
327	+	//         } catch (Exception ex) { return null; }
328	+	//     }
329	+
330	+	public void runBare() throws Throwable {
331	+	currentTestCase = this;
332	+	if (methodFilter == null
333	+	|| methodFilter.matcher(toString()).find())
334	+	super.runBare();
335	+	}
336	+
337		protected void runTest() throws Throwable {
338	<	if (profileTests)
339	<	runTestProfiled();
340	<	else
341	<	super.runTest();
338	>	for (int i = 0; i < runsPerTest; i++) {
339	>	// currentRun = i;
340	>	if (profileTests)
341	>	runTestProfiled();
342	>	else
343	>	super.runTest();
344	>	}
345		}
346
347		protected void runTestProfiled() throws Throwable {
348	<	long t0 = System.nanoTime();
349	<	try {
348	>	for (int i = 0; i < 2; i++) {
349	>	long startTime = System.nanoTime();
350		super.runTest();
351	<	} finally {
352	<	long elapsedMillis =
353	<	(System.nanoTime() - t0) / (1000L * 1000L);
354	<	if (elapsedMillis >= profileThreshold)
351	>	long elapsedMillis = millisElapsedSince(startTime);
352	>	if (elapsedMillis < profileThreshold)
353	>	break;
354	>	// Never report first run of any test; treat it as a
355	>	// warmup run, notably to trigger all needed classloading,
356	>	if (i > 0)
357		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
358		}
359		}
360
361		/**
362		* Runs all JSR166 unit tests using junit.textui.TestRunner.
152	–	* Optional command line arg provides the number of iterations to
153	–	* repeat running the tests.
363		*/
364		public static void main(String[] args) {
365	+	main(suite(), args);
366	+	}
367	+
368	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
369	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
370	+	long runTime;
371	+	public void startTest(Test test) {}
372	+	protected void printHeader(long runTime) {
373	+	this.runTime = runTime; // defer printing for later
374	+	}
375	+	protected void printFooter(TestResult result) {
376	+	if (result.wasSuccessful()) {
377	+	getWriter().println("OK (" + result.runCount() + " tests)"
378	+	+ "  Time: " + elapsedTimeAsString(runTime));
379	+	} else {
380	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
381	+	super.printFooter(result);
382	+	}
383	+	}
384	+	}
385	+
386	+	/**
387	+	* Returns a TestRunner that doesn't bother with unnecessary
388	+	* fluff, like printing a "." for each test case.
389	+	*/
390	+	static junit.textui.TestRunner newPithyTestRunner() {
391	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
392	+	runner.setPrinter(new PithyResultPrinter(System.out));
393	+	return runner;
394	+	}
395	+
396	+	/**
397	+	* Runs all unit tests in the given test suite.
398	+	* Actual behavior influenced by jsr166.* system properties.
399	+	*/
400	+	static void main(Test suite, String[] args) {
401		if (useSecurityManager) {
402		System.err.println("Setting a permissive security manager");
403		Policy.setPolicy(permissivePolicy());
404		System.setSecurityManager(new SecurityManager());
405		}
406	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
407	<
408	<	Test s = suite();
409	<	for (int i = 0; i < iters; ++i) {
165	<	junit.textui.TestRunner.run(s);
406	>	for (int i = 0; i < suiteRuns; i++) {
407	>	TestResult result = newPithyTestRunner().doRun(suite);
408	>	if (!result.wasSuccessful())
409	>	System.exit(1);
410		System.gc();
411		System.runFinalization();
412		}
169	–	System.exit(0);
413		}
414
415		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 187 | Line 430 | public class JSR166TestCase extends Test
430		for (String testClassName : testClassNames) {
431		try {
432		Class<?> testClass = Class.forName(testClassName);
433	<	Method m = testClass.getDeclaredMethod("suite",
191	<	new Class<?>[0]);
433	>	Method m = testClass.getDeclaredMethod("suite");
434		suite.addTest(newTestSuite((Test)m.invoke(null)));
435	<	} catch (Exception e) {
436	<	throw new Error("Missing test class", e);
435	>	} catch (ReflectiveOperationException e) {
436	>	throw new AssertionError("Missing test class", e);
437		}
438		}
439		}
440
441		public static final double JAVA_CLASS_VERSION;
442	+	public static final String JAVA_SPECIFICATION_VERSION;
443		static {
444		try {
445		JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
446		new java.security.PrivilegedAction<Double>() {
447		public Double run() {
448		return Double.valueOf(System.getProperty("java.class.version"));}});
449	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
450	+	new java.security.PrivilegedAction<String>() {
451	+	public String run() {
452	+	return System.getProperty("java.specification.version");}});
453		} catch (Throwable t) {
454		throw new Error(t);
455		}
456		}
457
458	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
459	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
460	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
458	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
459	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
460	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
461	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
462	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
463	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
464	>	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
465	>	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
466	>	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
467	>	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
468	>	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
469	>	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
470
471		/**
472		* Collects all JSR166 unit tests as one suite.
#	Line 231 | Line 487 | public class JSR166TestCase extends Test
487		AbstractQueuedLongSynchronizerTest.suite(),
488		ArrayBlockingQueueTest.suite(),
489		ArrayDequeTest.suite(),
490	+	ArrayListTest.suite(),
491		AtomicBooleanTest.suite(),
492		AtomicIntegerArrayTest.suite(),
493		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 253 | Line 510 | public class JSR166TestCase extends Test
510		CopyOnWriteArrayListTest.suite(),
511		CopyOnWriteArraySetTest.suite(),
512		CountDownLatchTest.suite(),
513	+	CountedCompleterTest.suite(),
514		CyclicBarrierTest.suite(),
515		DelayQueueTest.suite(),
516		EntryTest.suite(),
#	Line 260 | Line 518 | public class JSR166TestCase extends Test
518		ExecutorsTest.suite(),
519		ExecutorCompletionServiceTest.suite(),
520		FutureTaskTest.suite(),
521	+	HashtableTest.suite(),
522		LinkedBlockingDequeTest.suite(),
523		LinkedBlockingQueueTest.suite(),
524		LinkedListTest.suite(),
#	Line 281 | Line 540 | public class JSR166TestCase extends Test
540		TreeMapTest.suite(),
541		TreeSetTest.suite(),
542		TreeSubMapTest.suite(),
543	<	TreeSubSetTest.suite());
543	>	TreeSubSetTest.suite(),
544	>	VectorTest.suite());
545
546		// Java8+ test classes
547		if (atLeastJava8()) {
548		String[] java8TestClassNames = {
549	<	"StampedLockTest",
549	>	"ArrayDeque8Test",
550	>	"Atomic8Test",
551	>	"CompletableFutureTest",
552	>	"ConcurrentHashMap8Test",
553	>	"CountedCompleter8Test",
554	>	"DoubleAccumulatorTest",
555	>	"DoubleAdderTest",
556		"ForkJoinPool8Test",
557	+	"ForkJoinTask8Test",
558	+	"HashMapTest",
559	+	"LinkedBlockingDeque8Test",
560	+	"LinkedBlockingQueue8Test",
561	+	"LinkedHashMapTest",
562	+	"LongAccumulatorTest",
563	+	"LongAdderTest",
564	+	"SplittableRandomTest",
565	+	"StampedLockTest",
566	+	"SubmissionPublisherTest",
567	+	"ThreadLocalRandom8Test",
568	+	"TimeUnit8Test",
569		};
570		addNamedTestClasses(suite, java8TestClassNames);
571		}
572
573	+	// Java9+ test classes
574	+	if (atLeastJava9()) {
575	+	String[] java9TestClassNames = {
576	+	"AtomicBoolean9Test",
577	+	"AtomicInteger9Test",
578	+	"AtomicIntegerArray9Test",
579	+	"AtomicLong9Test",
580	+	"AtomicLongArray9Test",
581	+	"AtomicReference9Test",
582	+	"AtomicReferenceArray9Test",
583	+	"ExecutorCompletionService9Test",
584	+	"ForkJoinPool9Test",
585	+	};
586	+	addNamedTestClasses(suite, java9TestClassNames);
587	+	}
588	+
589		return suite;
590		}
591
592	+	/** Returns list of junit-style test method names in given class. */
593	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
594	+	Method[] methods = testClass.getDeclaredMethods();
595	+	ArrayList<String> names = new ArrayList<>(methods.length);
596	+	for (Method method : methods) {
597	+	if (method.getName().startsWith("test")
598	+	&& Modifier.isPublic(method.getModifiers())
599	+	// method.getParameterCount() requires jdk8+
600	+	&& method.getParameterTypes().length == 0) {
601	+	names.add(method.getName());
602	+	}
603	+	}
604	+	return names;
605	+	}
606	+
607	+	/**
608	+	* Returns junit-style testSuite for the given test class, but
609	+	* parameterized by passing extra data to each test.
610	+	*/
611	+	public static <ExtraData> Test parameterizedTestSuite
612	+	(Class<? extends JSR166TestCase> testClass,
613	+	Class<ExtraData> dataClass,
614	+	ExtraData data) {
615	+	try {
616	+	TestSuite suite = new TestSuite();
617	+	Constructor c =
618	+	testClass.getDeclaredConstructor(dataClass, String.class);
619	+	for (String methodName : testMethodNames(testClass))
620	+	suite.addTest((Test) c.newInstance(data, methodName));
621	+	return suite;
622	+	} catch (ReflectiveOperationException e) {
623	+	throw new AssertionError(e);
624	+	}
625	+	}
626	+
627	+	/**
628	+	* Returns junit-style testSuite for the jdk8 extension of the
629	+	* given test class, but parameterized by passing extra data to
630	+	* each test.  Uses reflection to allow compilation in jdk7.
631	+	*/
632	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
633	+	(Class<? extends JSR166TestCase> testClass,
634	+	Class<ExtraData> dataClass,
635	+	ExtraData data) {
636	+	if (atLeastJava8()) {
637	+	String name = testClass.getName();
638	+	String name8 = name.replaceAll("Test$", "8Test");
639	+	if (name.equals(name8)) throw new AssertionError(name);
640	+	try {
641	+	return (Test)
642	+	Class.forName(name8)
643	+	.getMethod("testSuite", dataClass)
644	+	.invoke(null, data);
645	+	} catch (ReflectiveOperationException e) {
646	+	throw new AssertionError(e);
647	+	}
648	+	} else {
649	+	return new TestSuite();
650	+	}
651	+	}
652	+
653	+	// Delays for timing-dependent tests, in milliseconds.
654
655		public static long SHORT_DELAY_MS;
656		public static long SMALL_DELAY_MS;
657		public static long MEDIUM_DELAY_MS;
658		public static long LONG_DELAY_MS;
659
660	+	private static final long RANDOM_TIMEOUT;
661	+	private static final long RANDOM_EXPIRED_TIMEOUT;
662	+	private static final TimeUnit RANDOM_TIMEUNIT;
663	+	static {
664	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
665	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
666	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
667	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
668	+	TimeUnit[] timeUnits = TimeUnit.values();
669	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
670	+	}
671
672		/**
673	<	* Returns the shortest timed delay. This could
674	<	* be reimplemented to use for example a Property.
673	>	* Returns a timeout for use when any value at all will do.
674	>	*/
675	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
676	>
677	>	/**
678	>	* Returns a timeout that means "no waiting", i.e. not positive.
679	>	*/
680	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
681	>
682	>	/**
683	>	* Returns a random non-null TimeUnit.
684	>	*/
685	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
686	>
687	>	/**
688	>	* Returns a random boolean; a "coin flip".
689	>	*/
690	>	static boolean randomBoolean() {
691	>	return ThreadLocalRandom.current().nextBoolean();
692	>	}
693	>
694	>	/**
695	>	* Returns the shortest timed delay. This can be scaled up for
696	>	* slow machines using the jsr166.delay.factor system property,
697	>	* or via jtreg's -timeoutFactor: flag.
698	>	* http://openjdk.java.net/jtreg/command-help.html
699		*/
700		protected long getShortDelay() {
701	<	return 50;
701	>	return (long) (50 * delayFactor);
702		}
703
704		/**
#	Line 320 | Line 711 | public class JSR166TestCase extends Test
711		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
712		}
713
714	+	private static final long TIMEOUT_DELAY_MS
715	+	= (long) (12.0 * Math.cbrt(delayFactor));
716	+
717		/**
718	<	* Returns a timeout in milliseconds to be used in tests that
719	<	* verify that operations block or time out.
718	>	* Returns a timeout in milliseconds to be used in tests that verify
719	>	* that operations block or time out.  We want this to be longer
720	>	* than the OS scheduling quantum, but not too long, so don't scale
721	>	* linearly with delayFactor; we use "crazy" cube root instead.
722		*/
723	<	long timeoutMillis() {
724	<	return SHORT_DELAY_MS / 4;
723	>	static long timeoutMillis() {
724	>	return TIMEOUT_DELAY_MS;
725		}
726
727		/**
728	<	* Returns a new Date instance representing a time delayMillis
729	<	* milliseconds in the future.
728	>	* Returns a new Date instance representing a time at least
729	>	* delayMillis milliseconds in the future.
730		*/
731		Date delayedDate(long delayMillis) {
732	<	return new Date(System.currentTimeMillis() + delayMillis);
732	>	// Add 1 because currentTimeMillis is known to round into the past.
733	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
734		}
735
736		/**
737		* The first exception encountered if any threadAssertXXX method fails.
738		*/
739		private final AtomicReference<Throwable> threadFailure
740	<	= new AtomicReference<Throwable>(null);
740	>	= new AtomicReference<>(null);
741
742		/**
743		* Records an exception so that it can be rethrown later in the test
#	Line 349 | Line 746 | public class JSR166TestCase extends Test
746		* the same test have no effect.
747		*/
748		public void threadRecordFailure(Throwable t) {
749	+	System.err.println(t);
750	+	dumpTestThreads();
751		threadFailure.compareAndSet(null, t);
752		}
753
#	Line 356 | Line 755 | public class JSR166TestCase extends Test
755		setDelays();
756		}
757
758	+	void tearDownFail(String format, Object... args) {
759	+	String msg = toString() + ": " + String.format(format, args);
760	+	System.err.println(msg);
761	+	dumpTestThreads();
762	+	throw new AssertionError(msg);
763	+	}
764	+
765		/**
766		* Extra checks that get done for all test cases.
767		*
#	Line 374 | Line 780 | public class JSR166TestCase extends Test
780		throw (RuntimeException) t;
781		else if (t instanceof Exception)
782		throw (Exception) t;
783	<	else {
784	<	AssertionFailedError afe =
379	<	new AssertionFailedError(t.toString());
380	<	afe.initCause(t);
381	<	throw afe;
382	<	}
783	>	else
784	>	throw new AssertionError(t.toString(), t);
785		}
786
787		if (Thread.interrupted())
788	<	throw new AssertionFailedError("interrupt status set in main thread");
788	>	tearDownFail("interrupt status set in main thread");
789
790		checkForkJoinPoolThreadLeaks();
791		}
792
793		/**
794	<	* Find missing try { ... } finally { joinPool(e); }
794	>	* Finds missing PoolCleaners
795		*/
796		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
797	<	Thread[] survivors = new Thread[5];
797	>	Thread[] survivors = new Thread[7];
798		int count = Thread.enumerate(survivors);
799		for (int i = 0; i < count; i++) {
800		Thread thread = survivors[i];
#	Line 400 | Line 802 | public class JSR166TestCase extends Test
802		if (name.startsWith("ForkJoinPool-")) {
803		// give thread some time to terminate
804		thread.join(LONG_DELAY_MS);
805	<	if (!thread.isAlive()) continue;
806	<	thread.stop();
807	<	throw new AssertionFailedError
406	<	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
407	<	toString(), name));
805	>	if (thread.isAlive())
806	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
807	>	thread);
808		}
809		}
810	+
811	+	if (!ForkJoinPool.commonPool()
812	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
813	+	tearDownFail("ForkJoin common pool thread stuck");
814		}
815	<
815	>
816		/**
817		* Just like fail(reason), but additionally recording (using
818	<	* threadRecordFailure) any AssertionFailedError thrown, so that
819	<	* the current testcase will fail.
818	>	* threadRecordFailure) any AssertionError thrown, so that the
819	>	* current testcase will fail.
820		*/
821		public void threadFail(String reason) {
822		try {
823		fail(reason);
824	<	} catch (AssertionFailedError t) {
825	<	threadRecordFailure(t);
826	<	fail(reason);
824	>	} catch (AssertionError fail) {
825	>	threadRecordFailure(fail);
826	>	throw fail;
827		}
828		}
829
830		/**
831		* Just like assertTrue(b), but additionally recording (using
832	<	* threadRecordFailure) any AssertionFailedError thrown, so that
833	<	* the current testcase will fail.
832	>	* threadRecordFailure) any AssertionError thrown, so that the
833	>	* current testcase will fail.
834		*/
835		public void threadAssertTrue(boolean b) {
836		try {
837		assertTrue(b);
838	<	} catch (AssertionFailedError t) {
839	<	threadRecordFailure(t);
840	<	throw t;
838	>	} catch (AssertionError fail) {
839	>	threadRecordFailure(fail);
840	>	throw fail;
841		}
842		}
843
844		/**
845		* Just like assertFalse(b), but additionally recording (using
846	<	* threadRecordFailure) any AssertionFailedError thrown, so that
847	<	* the current testcase will fail.
846	>	* threadRecordFailure) any AssertionError thrown, so that the
847	>	* current testcase will fail.
848		*/
849		public void threadAssertFalse(boolean b) {
850		try {
851		assertFalse(b);
852	<	} catch (AssertionFailedError t) {
853	<	threadRecordFailure(t);
854	<	throw t;
852	>	} catch (AssertionError fail) {
853	>	threadRecordFailure(fail);
854	>	throw fail;
855		}
856		}
857
858		/**
859		* Just like assertNull(x), but additionally recording (using
860	<	* threadRecordFailure) any AssertionFailedError thrown, so that
861	<	* the current testcase will fail.
860	>	* threadRecordFailure) any AssertionError thrown, so that the
861	>	* current testcase will fail.
862		*/
863		public void threadAssertNull(Object x) {
864		try {
865		assertNull(x);
866	<	} catch (AssertionFailedError t) {
867	<	threadRecordFailure(t);
868	<	throw t;
866	>	} catch (AssertionError fail) {
867	>	threadRecordFailure(fail);
868	>	throw fail;
869		}
870		}
871
872		/**
873		* Just like assertEquals(x, y), but additionally recording (using
874	<	* threadRecordFailure) any AssertionFailedError thrown, so that
875	<	* the current testcase will fail.
874	>	* threadRecordFailure) any AssertionError thrown, so that the
875	>	* current testcase will fail.
876		*/
877		public void threadAssertEquals(long x, long y) {
878		try {
879		assertEquals(x, y);
880	<	} catch (AssertionFailedError t) {
881	<	threadRecordFailure(t);
882	<	throw t;
880	>	} catch (AssertionError fail) {
881	>	threadRecordFailure(fail);
882	>	throw fail;
883		}
884		}
885
886		/**
887		* Just like assertEquals(x, y), but additionally recording (using
888	<	* threadRecordFailure) any AssertionFailedError thrown, so that
889	<	* the current testcase will fail.
888	>	* threadRecordFailure) any AssertionError thrown, so that the
889	>	* current testcase will fail.
890		*/
891		public void threadAssertEquals(Object x, Object y) {
892		try {
893		assertEquals(x, y);
894	<	} catch (AssertionFailedError t) {
895	<	threadRecordFailure(t);
896	<	throw t;
897	<	} catch (Throwable t) {
898	<	threadUnexpectedException(t);
894	>	} catch (AssertionError fail) {
895	>	threadRecordFailure(fail);
896	>	throw fail;
897	>	} catch (Throwable fail) {
898	>	threadUnexpectedException(fail);
899		}
900		}
901
902		/**
903		* Just like assertSame(x, y), but additionally recording (using
904	<	* threadRecordFailure) any AssertionFailedError thrown, so that
905	<	* the current testcase will fail.
904	>	* threadRecordFailure) any AssertionError thrown, so that the
905	>	* current testcase will fail.
906		*/
907		public void threadAssertSame(Object x, Object y) {
908		try {
909		assertSame(x, y);
910	<	} catch (AssertionFailedError t) {
911	<	threadRecordFailure(t);
912	<	throw t;
910	>	} catch (AssertionError fail) {
911	>	threadRecordFailure(fail);
912	>	throw fail;
913		}
914		}
915
#	Line 525 | Line 929 | public class JSR166TestCase extends Test
929
930		/**
931		* Records the given exception using {@link #threadRecordFailure},
932	<	* then rethrows the exception, wrapping it in an
933	<	* AssertionFailedError if necessary.
932	>	* then rethrows the exception, wrapping it in an AssertionError
933	>	* if necessary.
934		*/
935		public void threadUnexpectedException(Throwable t) {
936		threadRecordFailure(t);
#	Line 535 | Line 939 | public class JSR166TestCase extends Test
939		throw (RuntimeException) t;
940		else if (t instanceof Error)
941		throw (Error) t;
942	<	else {
943	<	AssertionFailedError afe =
540	<	new AssertionFailedError("unexpected exception: " + t);
541	<	afe.initCause(t);
542	<	throw afe;
543	<	}
942	>	else
943	>	throw new AssertionError("unexpected exception: " + t, t);
944		}
945
946		/**
947		* Delays, via Thread.sleep, for the given millisecond delay, but
948		* if the sleep is shorter than specified, may re-sleep or yield
949	<	* until time elapses.
949	>	* until time elapses.  Ensures that the given time, as measured
950	>	* by System.nanoTime(), has elapsed.
951		*/
952		static void delay(long millis) throws InterruptedException {
953	<	long startTime = System.nanoTime();
954	<	long ns = millis * 1000 * 1000;
955	<	for (;;) {
953	>	long nanos = millis * (1000 * 1000);
954	>	final long wakeupTime = System.nanoTime() + nanos;
955	>	do {
956		if (millis > 0L)
957		Thread.sleep(millis);
958		else // too short to sleep
959		Thread.yield();
960	<	long d = ns - (System.nanoTime() - startTime);
961	<	if (d > 0L)
962	<	millis = d / (1000 * 1000);
963	<	else
964	<	break;
960	>	nanos = wakeupTime - System.nanoTime();
961	>	millis = nanos / (1000 * 1000);
962	>	} while (nanos >= 0L);
963	>	}
964	>
965	>	/**
966	>	* Allows use of try-with-resources with per-test thread pools.
967	>	*/
968	>	class PoolCleaner implements AutoCloseable {
969	>	private final ExecutorService pool;
970	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
971	>	public void close() { joinPool(pool); }
972	>	}
973	>
974	>	/**
975	>	* An extension of PoolCleaner that has an action to release the pool.
976	>	*/
977	>	class PoolCleanerWithReleaser extends PoolCleaner {
978	>	private final Runnable releaser;
979	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
980	>	super(pool);
981	>	this.releaser = releaser;
982		}
983	+	public void close() {
984	+	try {
985	+	releaser.run();
986	+	} finally {
987	+	super.close();
988	+	}
989	+	}
990	+	}
991	+
992	+	PoolCleaner cleaner(ExecutorService pool) {
993	+	return new PoolCleaner(pool);
994	+	}
995	+
996	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
997	+	return new PoolCleanerWithReleaser(pool, releaser);
998	+	}
999	+
1000	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1001	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
1002	+	}
1003	+
1004	+	Runnable releaser(final CountDownLatch latch) {
1005	+	return new Runnable() { public void run() {
1006	+	do { latch.countDown(); }
1007	+	while (latch.getCount() > 0);
1008	+	}};
1009	+	}
1010	+
1011	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1012	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
1013	+	}
1014	+
1015	+	Runnable releaser(final AtomicBoolean flag) {
1016	+	return new Runnable() { public void run() { flag.set(true); }};
1017		}
1018
1019		/**
1020		* Waits out termination of a thread pool or fails doing so.
1021		*/
1022	<	void joinPool(ExecutorService exec) {
1022	>	void joinPool(ExecutorService pool) {
1023		try {
1024	<	exec.shutdown();
1025	<	assertTrue("ExecutorService did not terminate in a timely manner",
1026	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
1024	>	pool.shutdown();
1025	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1026	>	try {
1027	>	threadFail("ExecutorService " + pool +
1028	>	" did not terminate in a timely manner");
1029	>	} finally {
1030	>	// last resort, for the benefit of subsequent tests
1031	>	pool.shutdownNow();
1032	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1033	>	}
1034	>	}
1035		} catch (SecurityException ok) {
1036		// Allowed in case test doesn't have privs
1037	<	} catch (InterruptedException ie) {
1038	<	fail("Unexpected InterruptedException");
1037	>	} catch (InterruptedException fail) {
1038	>	threadFail("Unexpected InterruptedException");
1039		}
1040		}
1041
1042		/**
1043	<	* A debugging tool to print all stack traces, as jstack does.
1043	>	* Like Runnable, but with the freedom to throw anything.
1044	>	* junit folks had the same idea:
1045	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1046		*/
1047	<	static void printAllStackTraces() {
586	<	for (ThreadInfo info :
587	<	ManagementFactory.getThreadMXBean()
588	<	.dumpAllThreads(true, true))
589	<	System.err.print(info);
590	<	}
1047	>	interface Action { public void run() throws Throwable; }
1048
1049		/**
1050	<	* Checks that thread does not terminate within the default
1051	<	* millisecond delay of {@code timeoutMillis()}.
1050	>	* Runs all the given actions in parallel, failing if any fail.
1051	>	* Useful for running multiple variants of tests that are
1052	>	* necessarily individually slow because they must block.
1053		*/
1054	<	void assertThreadStaysAlive(Thread thread) {
1055	<	assertThreadStaysAlive(thread, timeoutMillis());
1054	>	void testInParallel(Action ... actions) {
1055	>	ExecutorService pool = Executors.newCachedThreadPool();
1056	>	try (PoolCleaner cleaner = cleaner(pool)) {
1057	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1058	>	for (final Action action : actions)
1059	>	futures.add(pool.submit(new CheckedRunnable() {
1060	>	public void realRun() throws Throwable { action.run();}}));
1061	>	for (Future<?> future : futures)
1062	>	try {
1063	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1064	>	} catch (ExecutionException ex) {
1065	>	threadUnexpectedException(ex.getCause());
1066	>	} catch (Exception ex) {
1067	>	threadUnexpectedException(ex);
1068	>	}
1069	>	}
1070		}
1071
1072		/**
1073	<	* Checks that thread does not terminate within the given millisecond delay.
1073	>	* A debugging tool to print stack traces of most threads, as jstack does.
1074	>	* Uninteresting threads are filtered out.
1075		*/
1076	<	void assertThreadStaysAlive(Thread thread, long millis) {
1077	<	try {
1078	<	// No need to optimize the failing case via Thread.join.
1079	<	delay(millis);
1080	<	assertTrue(thread.isAlive());
1081	<	} catch (InterruptedException ie) {
1082	<	fail("Unexpected InterruptedException");
1076	>	static void dumpTestThreads() {
1077	>	SecurityManager sm = System.getSecurityManager();
1078	>	if (sm != null) {
1079	>	try {
1080	>	System.setSecurityManager(null);
1081	>	} catch (SecurityException giveUp) {
1082	>	return;
1083	>	}
1084		}
611	–	}
1085
1086	<	/**
1087	<	* Checks that the threads do not terminate within the default
1088	<	* millisecond delay of {@code timeoutMillis()}.
1089	<	*/
1090	<	void assertThreadsStayAlive(Thread... threads) {
1091	<	assertThreadsStayAlive(timeoutMillis(), threads);
1086	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1087	>	System.err.println("------ stacktrace dump start ------");
1088	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1089	>	final String name = info.getThreadName();
1090	>	String lockName;
1091	>	if ("Signal Dispatcher".equals(name))
1092	>	continue;
1093	>	if ("Reference Handler".equals(name)
1094	>	&& (lockName = info.getLockName()) != null
1095	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1096	>	continue;
1097	>	if ("Finalizer".equals(name)
1098	>	&& (lockName = info.getLockName()) != null
1099	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1100	>	continue;
1101	>	if ("checkForWedgedTest".equals(name))
1102	>	continue;
1103	>	System.err.print(info);
1104	>	}
1105	>	System.err.println("------ stacktrace dump end ------");
1106	>
1107	>	if (sm != null) System.setSecurityManager(sm);
1108		}
1109
1110		/**
1111	<	* Checks that the threads do not terminate within the given millisecond delay.
1111	>	* Checks that thread eventually enters the expected blocked thread state.
1112		*/
1113	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1114	<	try {
1115	<	// No need to optimize the failing case via Thread.join.
1116	<	delay(millis);
1117	<	for (Thread thread : threads)
1118	<	assertTrue(thread.isAlive());
1119	<	} catch (InterruptedException ie) {
1120	<	fail("Unexpected InterruptedException");
1113	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1114	>	// always sleep at least 1 ms, with high probability avoiding
1115	>	// transitory states
1116	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1117	>	try { delay(1); }
1118	>	catch (InterruptedException fail) {
1119	>	throw new AssertionError("Unexpected InterruptedException", fail);
1120	>	}
1121	>	Thread.State s = thread.getState();
1122	>	if (s == expected)
1123	>	return;
1124	>	else if (s == Thread.State.TERMINATED)
1125	>	fail("Unexpected thread termination");
1126		}
1127	+	fail("timed out waiting for thread to enter thread state " + expected);
1128		}
1129
1130		/**
#	Line 649 | Line 1144 | public class JSR166TestCase extends Test
1144		future.get(timeoutMillis, MILLISECONDS);
1145		shouldThrow();
1146		} catch (TimeoutException success) {
1147	<	} catch (Exception e) {
1148	<	threadUnexpectedException(e);
1147	>	} catch (Exception fail) {
1148	>	threadUnexpectedException(fail);
1149		} finally { future.cancel(true); }
1150		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1151		}
#	Line 670 | Line 1165 | public class JSR166TestCase extends Test
1165		}
1166
1167		/**
1168	+	* The maximum number of consecutive spurious wakeups we should
1169	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1170	+	*/
1171	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1172	+
1173	+	/**
1174		* The number of elements to place in collections, arrays, etc.
1175		*/
1176		public static final int SIZE = 20;
#	Line 694 | Line 1195 | public class JSR166TestCase extends Test
1195		public static final Integer m6  = new Integer(-6);
1196		public static final Integer m10 = new Integer(-10);
1197
697	–
1198		/**
1199		* Runs Runnable r with a security policy that permits precisely
1200		* the specified permissions.  If there is no current security
#	Line 774 | Line 1274 | public class JSR166TestCase extends Test
1274		}
1275		public void refresh() {}
1276		public String toString() {
1277	<	List<Permission> ps = new ArrayList<Permission>();
1277	>	List<Permission> ps = new ArrayList<>();
1278		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1279		ps.add(e.nextElement());
1280		return "AdjustablePolicy with permissions " + ps;
#	Line 802 | Line 1302 | public class JSR166TestCase extends Test
1302
1303		/**
1304		* Sleeps until the given time has elapsed.
1305	<	* Throws AssertionFailedError if interrupted.
1305	>	* Throws AssertionError if interrupted.
1306		*/
1307	<	void sleep(long millis) {
1307	>	static void sleep(long millis) {
1308		try {
1309		delay(millis);
1310	<	} catch (InterruptedException ie) {
1311	<	AssertionFailedError afe =
812	<	new AssertionFailedError("Unexpected InterruptedException");
813	<	afe.initCause(ie);
814	<	throw afe;
1310	>	} catch (InterruptedException fail) {
1311	>	throw new AssertionError("Unexpected InterruptedException", fail);
1312		}
1313		}
1314
1315		/**
1316		* Spin-waits up to the specified number of milliseconds for the given
1317		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1318	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1319		*/
1320	<	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1321	<	long startTime = System.nanoTime();
1322	<	for (;;) {
1323	<	Thread.State s = thread.getState();
1324	<	if (s == Thread.State.BLOCKED ||
1325	<	s == Thread.State.WAITING ||
1326	<	s == Thread.State.TIMED_WAITING)
1327	<	return;
1328	<	else if (s == Thread.State.TERMINATED)
1320	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1321	>	Callable<Boolean> waitingForGodot) {
1322	>	for (long startTime = 0L;;) {
1323	>	switch (thread.getState()) {
1324	>	default: break;
1325	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1326	>	try {
1327	>	if (waitingForGodot == null || waitingForGodot.call())
1328	>	return;
1329	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1330	>	break;
1331	>	case TERMINATED:
1332		fail("Unexpected thread termination");
1333	+	}
1334	+
1335	+	if (startTime == 0L)
1336	+	startTime = System.nanoTime();
1337		else if (millisElapsedSince(startTime) > timeoutMillis) {
1338	<	threadAssertTrue(thread.isAlive());
1339	<	return;
1338	>	assertTrue(thread.isAlive());
1339	>	if (waitingForGodot == null
1340	>	|| thread.getState() == Thread.State.RUNNABLE)
1341	>	fail("timed out waiting for thread to enter wait state");
1342	>	else
1343	>	fail("timed out waiting for condition, thread state="
1344	>	+ thread.getState());
1345		}
1346		Thread.yield();
1347		}
1348		}
1349
1350		/**
1351	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1352	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1351	>	* Spin-waits up to the specified number of milliseconds for the given
1352	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1353	>	*/
1354	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1355	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1356	>	}
1357	>
1358	>	/**
1359	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1360	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1361		*/
1362		void waitForThreadToEnterWaitState(Thread thread) {
1363	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1363	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1364	>	}
1365	>
1366	>	/**
1367	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1368	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1369	>	* and additionally satisfy the given condition.
1370	>	*/
1371	>	void waitForThreadToEnterWaitState(Thread thread,
1372	>	Callable<Boolean> waitingForGodot) {
1373	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1374		}
1375
1376		/**
1377		* Returns the number of milliseconds since time given by
1378		* startNanoTime, which must have been previously returned from a
1379	<	* call to {@link System.nanoTime()}.
1379	>	* call to {@link System#nanoTime()}.
1380		*/
1381	<	long millisElapsedSince(long startNanoTime) {
1381	>	static long millisElapsedSince(long startNanoTime) {
1382		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1383		}
1384
1385	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1386	+	//         long startTime = System.nanoTime();
1387	+	//         try {
1388	+	//             r.run();
1389	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1390	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1391	+	//             throw new AssertionError("did not return promptly");
1392	+	//     }
1393	+
1394	+	//     void assertTerminatesPromptly(Runnable r) {
1395	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1396	+	//     }
1397	+
1398	+	/**
1399	+	* Checks that timed f.get() returns the expected value, and does not
1400	+	* wait for the timeout to elapse before returning.
1401	+	*/
1402	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1403	+	long startTime = System.nanoTime();
1404	+	T actual = null;
1405	+	try {
1406	+	actual = f.get(timeoutMillis, MILLISECONDS);
1407	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1408	+	assertEquals(expectedValue, actual);
1409	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1410	+	throw new AssertionError("timed get did not return promptly");
1411	+	}
1412	+
1413	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1414	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1415	+	}
1416	+
1417		/**
1418		* Returns a new started daemon Thread running the given runnable.
1419		*/
#	Line 872 | Line 1432 | public class JSR166TestCase extends Test
1432		void awaitTermination(Thread t, long timeoutMillis) {
1433		try {
1434		t.join(timeoutMillis);
1435	<	} catch (InterruptedException ie) {
1436	<	threadUnexpectedException(ie);
1435	>	} catch (InterruptedException fail) {
1436	>	threadUnexpectedException(fail);
1437		} finally {
1438		if (t.getState() != Thread.State.TERMINATED) {
1439		t.interrupt();
1440	<	fail("Test timed out");
1440	>	threadFail("timed out waiting for thread to terminate");
1441		}
1442		}
1443		}
#	Line 899 | Line 1459 | public class JSR166TestCase extends Test
1459		public final void run() {
1460		try {
1461		realRun();
1462	<	} catch (Throwable t) {
1463	<	threadUnexpectedException(t);
904	<	}
905	<	}
906	<	}
907	<
908	<	public abstract class RunnableShouldThrow implements Runnable {
909	<	protected abstract void realRun() throws Throwable;
910	<
911	<	final Class<?> exceptionClass;
912	<
913	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
914	<	this.exceptionClass = exceptionClass;
915	<	}
916	<
917	<	public final void run() {
918	<	try {
919	<	realRun();
920	<	threadShouldThrow(exceptionClass.getSimpleName());
921	<	} catch (Throwable t) {
922	<	if (! exceptionClass.isInstance(t))
923	<	threadUnexpectedException(t);
1462	>	} catch (Throwable fail) {
1463	>	threadUnexpectedException(fail);
1464		}
1465		}
1466		}
#	Line 937 | Line 1477 | public class JSR166TestCase extends Test
1477		public final void run() {
1478		try {
1479		realRun();
940	–	threadShouldThrow(exceptionClass.getSimpleName());
1480		} catch (Throwable t) {
1481		if (! exceptionClass.isInstance(t))
1482		threadUnexpectedException(t);
1483	+	return;
1484		}
1485	+	threadShouldThrow(exceptionClass.getSimpleName());
1486		}
1487		}
1488
#	Line 951 | Line 1492 | public class JSR166TestCase extends Test
1492		public final void run() {
1493		try {
1494		realRun();
954	–	threadShouldThrow("InterruptedException");
1495		} catch (InterruptedException success) {
1496		threadAssertFalse(Thread.interrupted());
1497	<	} catch (Throwable t) {
1498	<	threadUnexpectedException(t);
1497	>	return;
1498	>	} catch (Throwable fail) {
1499	>	threadUnexpectedException(fail);
1500		}
1501	+	threadShouldThrow("InterruptedException");
1502		}
1503		}
1504
#	Line 966 | Line 1508 | public class JSR166TestCase extends Test
1508		public final T call() {
1509		try {
1510		return realCall();
1511	<	} catch (Throwable t) {
1512	<	threadUnexpectedException(t);
971	<	return null;
972	<	}
973	<	}
974	<	}
975	<
976	<	public abstract class CheckedInterruptedCallable<T>
977	<	implements Callable<T> {
978	<	protected abstract T realCall() throws Throwable;
979	<
980	<	public final T call() {
981	<	try {
982	<	T result = realCall();
983	<	threadShouldThrow("InterruptedException");
984	<	return result;
985	<	} catch (InterruptedException success) {
986	<	threadAssertFalse(Thread.interrupted());
987	<	} catch (Throwable t) {
988	<	threadUnexpectedException(t);
1511	>	} catch (Throwable fail) {
1512	>	threadUnexpectedException(fail);
1513		}
1514	<	return null;
1514	>	throw new AssertionError("unreached");
1515		}
1516		}
1517
#	Line 1002 | Line 1526 | public class JSR166TestCase extends Test
1526		public static final String TEST_STRING = "a test string";
1527
1528		public static class StringTask implements Callable<String> {
1529	<	public String call() { return TEST_STRING; }
1529	>	final String value;
1530	>	public StringTask() { this(TEST_STRING); }
1531	>	public StringTask(String value) { this.value = value; }
1532	>	public String call() { return value; }
1533		}
1534
1535		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 1015 | Line 1542 | public class JSR166TestCase extends Test
1542		}};
1543		}
1544
1545	<	public Runnable awaiter(final CountDownLatch latch) {
1545	>	public Runnable countDowner(final CountDownLatch latch) {
1546		return new CheckedRunnable() {
1547		public void realRun() throws InterruptedException {
1548	<	await(latch);
1548	>	latch.countDown();
1549		}};
1550		}
1551
1552	+	class LatchAwaiter extends CheckedRunnable {
1553	+	static final int NEW = 0;
1554	+	static final int RUNNING = 1;
1555	+	static final int DONE = 2;
1556	+	final CountDownLatch latch;
1557	+	int state = NEW;
1558	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1559	+	public void realRun() throws InterruptedException {
1560	+	state = 1;
1561	+	await(latch);
1562	+	state = 2;
1563	+	}
1564	+	}
1565	+
1566	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1567	+	return new LatchAwaiter(latch);
1568	+	}
1569	+
1570	+	public void await(CountDownLatch latch, long timeoutMillis) {
1571	+	boolean timedOut = false;
1572	+	try {
1573	+	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1574	+	} catch (Throwable fail) {
1575	+	threadUnexpectedException(fail);
1576	+	}
1577	+	if (timedOut)
1578	+	fail("timed out waiting for CountDownLatch for "
1579	+	+ (timeoutMillis/1000) + " sec");
1580	+	}
1581	+
1582		public void await(CountDownLatch latch) {
1583	+	await(latch, LONG_DELAY_MS);
1584	+	}
1585	+
1586	+	public void await(Semaphore semaphore) {
1587	+	boolean timedOut = false;
1588		try {
1589	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1590	<	} catch (Throwable t) {
1591	<	threadUnexpectedException(t);
1589	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1590	>	} catch (Throwable fail) {
1591	>	threadUnexpectedException(fail);
1592		}
1593	+	if (timedOut)
1594	+	fail("timed out waiting for Semaphore for "
1595	+	+ (LONG_DELAY_MS/1000) + " sec");
1596		}
1597
1598	<	public void await(Semaphore semaphore) {
1598	>	public void await(CyclicBarrier barrier) {
1599		try {
1600	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1601	<	} catch (Throwable t) {
1602	<	threadUnexpectedException(t);
1600	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1601	>	} catch (Throwable fail) {
1602	>	threadUnexpectedException(fail);
1603		}
1604		}
1605
#	Line 1052 | Line 1617 | public class JSR166TestCase extends Test
1617		//         long startTime = System.nanoTime();
1618		//         while (!flag.get()) {
1619		//             if (millisElapsedSince(startTime) > timeoutMillis)
1620	<	//                 throw new AssertionFailedError("timed out");
1620	>	//                 throw new AssertionError("timed out");
1621		//             Thread.yield();
1622		//         }
1623		//     }
#	Line 1061 | Line 1626 | public class JSR166TestCase extends Test
1626		public String call() { throw new NullPointerException(); }
1627		}
1628
1064	–	public static class CallableOne implements Callable<Integer> {
1065	–	public Integer call() { return one; }
1066	–	}
1067	–
1068	–	public class ShortRunnable extends CheckedRunnable {
1069	–	protected void realRun() throws Throwable {
1070	–	delay(SHORT_DELAY_MS);
1071	–	}
1072	–	}
1073	–
1074	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1075	–	protected void realRun() throws InterruptedException {
1076	–	delay(SHORT_DELAY_MS);
1077	–	}
1078	–	}
1079	–
1080	–	public class SmallRunnable extends CheckedRunnable {
1081	–	protected void realRun() throws Throwable {
1082	–	delay(SMALL_DELAY_MS);
1083	–	}
1084	–	}
1085	–
1086	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1087	–	protected void realRun() {
1088	–	try {
1089	–	delay(SMALL_DELAY_MS);
1090	–	} catch (InterruptedException ok) {}
1091	–	}
1092	–	}
1093	–
1094	–	public class SmallCallable extends CheckedCallable {
1095	–	protected Object realCall() throws InterruptedException {
1096	–	delay(SMALL_DELAY_MS);
1097	–	return Boolean.TRUE;
1098	–	}
1099	–	}
1100	–
1101	–	public class MediumRunnable extends CheckedRunnable {
1102	–	protected void realRun() throws Throwable {
1103	–	delay(MEDIUM_DELAY_MS);
1104	–	}
1105	–	}
1106	–
1107	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1108	–	protected void realRun() throws InterruptedException {
1109	–	delay(MEDIUM_DELAY_MS);
1110	–	}
1111	–	}
1112	–
1629		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1630		return new CheckedRunnable() {
1631		protected void realRun() {
#	Line 1119 | Line 1635 | public class JSR166TestCase extends Test
1635		}};
1636		}
1637
1122	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1123	–	protected void realRun() {
1124	–	try {
1125	–	delay(MEDIUM_DELAY_MS);
1126	–	} catch (InterruptedException ok) {}
1127	–	}
1128	–	}
1129	–
1130	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1131	–	protected void realRun() {
1132	–	try {
1133	–	delay(LONG_DELAY_MS);
1134	–	} catch (InterruptedException ok) {}
1135	–	}
1136	–	}
1137	–
1638		/**
1639		* For use as ThreadFactory in constructors
1640		*/
#	Line 1148 | Line 1648 | public class JSR166TestCase extends Test
1648		boolean isDone();
1649		}
1650
1151	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1152	–	return new TrackedRunnable() {
1153	–	private volatile boolean done = false;
1154	–	public boolean isDone() { return done; }
1155	–	public void run() {
1156	–	try {
1157	–	delay(timeoutMillis);
1158	–	done = true;
1159	–	} catch (InterruptedException ok) {}
1160	–	}
1161	–	};
1162	–	}
1163	–
1164	–	public static class TrackedShortRunnable implements Runnable {
1165	–	public volatile boolean done = false;
1166	–	public void run() {
1167	–	try {
1168	–	delay(SHORT_DELAY_MS);
1169	–	done = true;
1170	–	} catch (InterruptedException ok) {}
1171	–	}
1172	–	}
1173	–
1174	–	public static class TrackedSmallRunnable implements Runnable {
1175	–	public volatile boolean done = false;
1176	–	public void run() {
1177	–	try {
1178	–	delay(SMALL_DELAY_MS);
1179	–	done = true;
1180	–	} catch (InterruptedException ok) {}
1181	–	}
1182	–	}
1183	–
1184	–	public static class TrackedMediumRunnable implements Runnable {
1185	–	public volatile boolean done = false;
1186	–	public void run() {
1187	–	try {
1188	–	delay(MEDIUM_DELAY_MS);
1189	–	done = true;
1190	–	} catch (InterruptedException ok) {}
1191	–	}
1192	–	}
1193	–
1194	–	public static class TrackedLongRunnable implements Runnable {
1195	–	public volatile boolean done = false;
1196	–	public void run() {
1197	–	try {
1198	–	delay(LONG_DELAY_MS);
1199	–	done = true;
1200	–	} catch (InterruptedException ok) {}
1201	–	}
1202	–	}
1203	–
1651		public static class TrackedNoOpRunnable implements Runnable {
1652		public volatile boolean done = false;
1653		public void run() {
#	Line 1208 | Line 1655 | public class JSR166TestCase extends Test
1655		}
1656		}
1657
1211	–	public static class TrackedCallable implements Callable {
1212	–	public volatile boolean done = false;
1213	–	public Object call() {
1214	–	try {
1215	–	delay(SMALL_DELAY_MS);
1216	–	done = true;
1217	–	} catch (InterruptedException ok) {}
1218	–	return Boolean.TRUE;
1219	–	}
1220	–	}
1221	–
1658		/**
1659		* Analog of CheckedRunnable for RecursiveAction
1660		*/
1661		public abstract class CheckedRecursiveAction extends RecursiveAction {
1662		protected abstract void realCompute() throws Throwable;
1663
1664	<	public final void compute() {
1664	>	@Override protected final void compute() {
1665		try {
1666		realCompute();
1667	<	} catch (Throwable t) {
1668	<	threadUnexpectedException(t);
1667	>	} catch (Throwable fail) {
1668	>	threadUnexpectedException(fail);
1669		}
1670		}
1671		}
#	Line 1240 | Line 1676 | public class JSR166TestCase extends Test
1676		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1677		protected abstract T realCompute() throws Throwable;
1678
1679	<	public final T compute() {
1679	>	@Override protected final T compute() {
1680		try {
1681		return realCompute();
1682	<	} catch (Throwable t) {
1683	<	threadUnexpectedException(t);
1248	<	return null;
1682	>	} catch (Throwable fail) {
1683	>	threadUnexpectedException(fail);
1684		}
1685	+	throw new AssertionError("unreached");
1686		}
1687		}
1688
#	Line 1260 | Line 1696 | public class JSR166TestCase extends Test
1696
1697		/**
1698		* A CyclicBarrier that uses timed await and fails with
1699	<	* AssertionFailedErrors instead of throwing checked exceptions.
1699	>	* AssertionErrors instead of throwing checked exceptions.
1700		*/
1701	<	public class CheckedBarrier extends CyclicBarrier {
1701	>	public static class CheckedBarrier extends CyclicBarrier {
1702		public CheckedBarrier(int parties) { super(parties); }
1703
1704		public int await() {
1705		try {
1706		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1707	<	} catch (TimeoutException e) {
1708	<	throw new AssertionFailedError("timed out");
1709	<	} catch (Exception e) {
1710	<	AssertionFailedError afe =
1275	<	new AssertionFailedError("Unexpected exception: " + e);
1276	<	afe.initCause(e);
1277	<	throw afe;
1707	>	} catch (TimeoutException timedOut) {
1708	>	throw new AssertionError("timed out");
1709	>	} catch (Exception fail) {
1710	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1711		}
1712		}
1713		}
#	Line 1285 | Line 1718 | public class JSR166TestCase extends Test
1718		assertEquals(0, q.size());
1719		assertNull(q.peek());
1720		assertNull(q.poll());
1721	<	assertNull(q.poll(0, MILLISECONDS));
1721	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1722		assertEquals(q.toString(), "[]");
1723		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1724		assertFalse(q.iterator().hasNext());
#	Line 1301 | Line 1734 | public class JSR166TestCase extends Test
1734		q.remove();
1735		shouldThrow();
1736		} catch (NoSuchElementException success) {}
1737	<	} catch (InterruptedException ie) {
1305	<	threadUnexpectedException(ie);
1306	<	}
1737	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1738		}
1739
1740		void assertSerialEquals(Object x, Object y) {
#	Line 1322 | Line 1753 | public class JSR166TestCase extends Test
1753		oos.flush();
1754		oos.close();
1755		return bos.toByteArray();
1756	<	} catch (Throwable t) {
1757	<	threadUnexpectedException(t);
1756	>	} catch (Throwable fail) {
1757	>	threadUnexpectedException(fail);
1758		return new byte[0];
1759		}
1760		}
1761
1762	+	void assertImmutable(Object o) {
1763	+	if (o instanceof Collection) {
1764	+	assertThrows(
1765	+	UnsupportedOperationException.class,
1766	+	() -> ((Collection) o).add(null));
1767	+	}
1768	+	}
1769	+
1770		@SuppressWarnings("unchecked")
1771		<T> T serialClone(T o) {
1772	+	T clone = null;
1773		try {
1774		ObjectInputStream ois = new ObjectInputStream
1775		(new ByteArrayInputStream(serialBytes(o)));
1776	<	T clone = (T) ois.readObject();
1777	<	assertSame(o.getClass(), clone.getClass());
1778	<	return clone;
1779	<	} catch (Throwable t) {
1780	<	threadUnexpectedException(t);
1776	>	clone = (T) ois.readObject();
1777	>	} catch (Throwable fail) {
1778	>	threadUnexpectedException(fail);
1779	>	}
1780	>	if (o == clone) assertImmutable(o);
1781	>	else assertSame(o.getClass(), clone.getClass());
1782	>	return clone;
1783	>	}
1784	>
1785	>	/**
1786	>	* A version of serialClone that leaves error handling (for
1787	>	* e.g. NotSerializableException) up to the caller.
1788	>	*/
1789	>	@SuppressWarnings("unchecked")
1790	>	<T> T serialClonePossiblyFailing(T o)
1791	>	throws ReflectiveOperationException, java.io.IOException {
1792	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1793	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1794	>	oos.writeObject(o);
1795	>	oos.flush();
1796	>	oos.close();
1797	>	ObjectInputStream ois = new ObjectInputStream
1798	>	(new ByteArrayInputStream(bos.toByteArray()));
1799	>	T clone = (T) ois.readObject();
1800	>	if (o == clone) assertImmutable(o);
1801	>	else assertSame(o.getClass(), clone.getClass());
1802	>	return clone;
1803	>	}
1804	>
1805	>	/**
1806	>	* If o implements Cloneable and has a public clone method,
1807	>	* returns a clone of o, else null.
1808	>	*/
1809	>	@SuppressWarnings("unchecked")
1810	>	<T> T cloneableClone(T o) {
1811	>	if (!(o instanceof Cloneable)) return null;
1812	>	final T clone;
1813	>	try {
1814	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1815	>	} catch (NoSuchMethodException ok) {
1816		return null;
1817	+	} catch (ReflectiveOperationException unexpected) {
1818	+	throw new Error(unexpected);
1819	+	}
1820	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1821	+	assertSame(o.getClass(), clone.getClass());
1822	+	return clone;
1823	+	}
1824	+
1825	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1826	+	Action... throwingActions) {
1827	+	for (Action throwingAction : throwingActions) {
1828	+	boolean threw = false;
1829	+	try { throwingAction.run(); }
1830	+	catch (Throwable t) {
1831	+	threw = true;
1832	+	if (!expectedExceptionClass.isInstance(t))
1833	+	throw new AssertionError(
1834	+	"Expected " + expectedExceptionClass.getName() +
1835	+	", got " + t.getClass().getName(),
1836	+	t);
1837	+	}
1838	+	if (!threw)
1839	+	shouldThrow(expectedExceptionClass.getName());
1840	+	}
1841	+	}
1842	+
1843	+	public void assertIteratorExhausted(Iterator<?> it) {
1844	+	try {
1845	+	it.next();
1846	+	shouldThrow();
1847	+	} catch (NoSuchElementException success) {}
1848	+	assertFalse(it.hasNext());
1849	+	}
1850	+
1851	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1852	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1853	+	}
1854	+
1855	+	public Runnable runnableThrowing(final RuntimeException ex) {
1856	+	return new Runnable() { public void run() { throw ex; }};
1857	+	}
1858	+
1859	+	/** A reusable thread pool to be shared by tests. */
1860	+	static final ExecutorService cachedThreadPool =
1861	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1862	+	1000L, MILLISECONDS,
1863	+	new SynchronousQueue<Runnable>());
1864	+
1865	+	static <T> void shuffle(T[] array) {
1866	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1867	+	}
1868	+
1869	+	/**
1870	+	* Returns the same String as would be returned by {@link
1871	+	* Object#toString}, whether or not the given object's class
1872	+	* overrides toString().
1873	+	*
1874	+	* @see System#identityHashCode
1875	+	*/
1876	+	static String identityString(Object x) {
1877	+	return x.getClass().getName()
1878	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1879	+	}
1880	+
1881	+	// --- Shared assertions for Executor tests ---
1882	+
1883	+	/**
1884	+	* Returns maximum number of tasks that can be submitted to given
1885	+	* pool (with bounded queue) before saturation (when submission
1886	+	* throws RejectedExecutionException).
1887	+	*/
1888	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1889	+	BlockingQueue<Runnable> q = pool.getQueue();
1890	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1891	+	}
1892	+
1893	+	@SuppressWarnings("FutureReturnValueIgnored")
1894	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1895	+	try {
1896	+	e.execute((Runnable) null);
1897	+	shouldThrow();
1898	+	} catch (NullPointerException success) {}
1899	+
1900	+	if (! (e instanceof ExecutorService)) return;
1901	+	ExecutorService es = (ExecutorService) e;
1902	+	try {
1903	+	es.submit((Runnable) null);
1904	+	shouldThrow();
1905	+	} catch (NullPointerException success) {}
1906	+	try {
1907	+	es.submit((Runnable) null, Boolean.TRUE);
1908	+	shouldThrow();
1909	+	} catch (NullPointerException success) {}
1910	+	try {
1911	+	es.submit((Callable) null);
1912	+	shouldThrow();
1913	+	} catch (NullPointerException success) {}
1914	+
1915	+	if (! (e instanceof ScheduledExecutorService)) return;
1916	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1917	+	try {
1918	+	ses.schedule((Runnable) null,
1919	+	randomTimeout(), randomTimeUnit());
1920	+	shouldThrow();
1921	+	} catch (NullPointerException success) {}
1922	+	try {
1923	+	ses.schedule((Callable) null,
1924	+	randomTimeout(), randomTimeUnit());
1925	+	shouldThrow();
1926	+	} catch (NullPointerException success) {}
1927	+	try {
1928	+	ses.scheduleAtFixedRate((Runnable) null,
1929	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1930	+	shouldThrow();
1931	+	} catch (NullPointerException success) {}
1932	+	try {
1933	+	ses.scheduleWithFixedDelay((Runnable) null,
1934	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1935	+	shouldThrow();
1936	+	} catch (NullPointerException success) {}
1937	+	}
1938	+
1939	+	void setRejectedExecutionHandler(
1940	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1941	+	p.setRejectedExecutionHandler(handler);
1942	+	assertSame(handler, p.getRejectedExecutionHandler());
1943	+	}
1944	+
1945	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1946	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1947	+	final long savedTaskCount = p.getTaskCount();
1948	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1949	+	final int savedQueueSize = p.getQueue().size();
1950	+	final boolean stock = (p.getClass().getClassLoader() == null);
1951	+
1952	+	Runnable r = () -> {};
1953	+	Callable<Boolean> c = () -> Boolean.TRUE;
1954	+
1955	+	class Recorder implements RejectedExecutionHandler {
1956	+	public volatile Runnable r = null;
1957	+	public volatile ThreadPoolExecutor p = null;
1958	+	public void reset() { r = null; p = null; }
1959	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1960	+	assertNull(this.r);
1961	+	assertNull(this.p);
1962	+	this.r = r;
1963	+	this.p = p;
1964	+	}
1965	+	}
1966	+
1967	+	// check custom handler is invoked exactly once per task
1968	+	Recorder recorder = new Recorder();
1969	+	setRejectedExecutionHandler(p, recorder);
1970	+	for (int i = 2; i--> 0; ) {
1971	+	recorder.reset();
1972	+	p.execute(r);
1973	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1974	+	assertSame(r, recorder.r);
1975	+	assertSame(p, recorder.p);
1976	+
1977	+	recorder.reset();
1978	+	assertFalse(p.submit(r).isDone());
1979	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1980	+	assertSame(p, recorder.p);
1981	+
1982	+	recorder.reset();
1983	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1984	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1985	+	assertSame(p, recorder.p);
1986	+
1987	+	recorder.reset();
1988	+	assertFalse(p.submit(c).isDone());
1989	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1990	+	assertSame(p, recorder.p);
1991	+
1992	+	if (p instanceof ScheduledExecutorService) {
1993	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1994	+	ScheduledFuture<?> future;
1995	+
1996	+	recorder.reset();
1997	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
1998	+	assertFalse(future.isDone());
1999	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2000	+	assertSame(p, recorder.p);
2001	+
2002	+	recorder.reset();
2003	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2004	+	assertFalse(future.isDone());
2005	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2006	+	assertSame(p, recorder.p);
2007	+
2008	+	recorder.reset();
2009	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2010	+	assertFalse(future.isDone());
2011	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2012	+	assertSame(p, recorder.p);
2013	+
2014	+	recorder.reset();
2015	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2016	+	assertFalse(future.isDone());
2017	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2018	+	assertSame(p, recorder.p);
2019	+	}
2020	+	}
2021	+
2022	+	// Checking our custom handler above should be sufficient, but
2023	+	// we add some integration tests of standard handlers.
2024	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2025	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2026	+
2027	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2028	+	try {
2029	+	p.execute(setThread);
2030	+	shouldThrow();
2031	+	} catch (RejectedExecutionException success) {}
2032	+	assertNull(thread.get());
2033	+
2034	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2035	+	p.execute(setThread);
2036	+	assertNull(thread.get());
2037	+
2038	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2039	+	p.execute(setThread);
2040	+	if (p.isShutdown())
2041	+	assertNull(thread.get());
2042	+	else
2043	+	assertSame(Thread.currentThread(), thread.get());
2044	+
2045	+	setRejectedExecutionHandler(p, savedHandler);
2046	+
2047	+	// check that pool was not perturbed by handlers
2048	+	assertEquals(savedTaskCount, p.getTaskCount());
2049	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2050	+	assertEquals(savedQueueSize, p.getQueue().size());
2051	+	}
2052	+
2053	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2054	+	assertEquals(x, y);
2055	+	assertEquals(y, x);
2056	+	assertEquals(x.isEmpty(), y.isEmpty());
2057	+	assertEquals(x.size(), y.size());
2058	+	if (x instanceof List) {
2059	+	assertEquals(x.toString(), y.toString());
2060	+	}
2061	+	if (x instanceof List || x instanceof Set) {
2062	+	assertEquals(x.hashCode(), y.hashCode());
2063	+	}
2064	+	if (x instanceof List || x instanceof Deque) {
2065	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2066	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2067	+	y.toArray(new Object[0])));
2068	+	}
2069	+	}
2070	+
2071	+	/**
2072	+	* A weaker form of assertCollectionsEquals which does not insist
2073	+	* that the two collections satisfy Object#equals(Object), since
2074	+	* they may use identity semantics as Deques do.
2075	+	*/
2076	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2077	+	if (x instanceof List || x instanceof Set)
2078	+	assertCollectionsEquals(x, y);
2079	+	else {
2080	+	assertEquals(x.isEmpty(), y.isEmpty());
2081	+	assertEquals(x.size(), y.size());
2082	+	assertEquals(new HashSet(x), new HashSet(y));
2083	+	if (x instanceof Deque) {
2084	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2085	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2086	+	y.toArray(new Object[0])));
2087	+	}
2088		}
2089		}
2090		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines