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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.53 by jsr166, Thu Sep 16 00:52:49 2010 UTC vs.
Revision 1.275 by dl, Tue Mar 22 21:29:24 2022 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
2	>	* Written by Doug Lea and Martin Buchholz with assistance from
3	>	* members of JCP JSR-166 Expert Group and released to the public
4	>	* domain, as explained at
5	>	* http://creativecommons.org/publicdomain/zero/1.0/
6		* Other contributors include Andrew Wright, Jeffrey Hayes,
7		* Pat Fisher, Mike Judd.
8		*/
9
10	<	import junit.framework.*;
11	<	import java.util.PropertyPermission;
12	<	import java.util.concurrent.*;
13	<	import java.util.concurrent.atomic.AtomicReference;
10	>	/*
11	>	* @test
12	>	* @summary JSR-166 tck tests, in a number of variations.
13	>	*          The first is the conformance testing variant,
14	>	*          while others also test implementation details.
15	>	* @build *
16	>	* @modules java.management
17	>	* @run junit/othervm/timeout=1000 JSR166TestCase
18	>	* @run junit/othervm/timeout=1000
19	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
20	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
21	>	*      -Djsr166.testImplementationDetails=true
22	>	*      JSR166TestCase
23	>	* @run junit/othervm/timeout=1000
24	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
25	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
26	>	*      -Djsr166.testImplementationDetails=true
27	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
28	>	*      JSR166TestCase
29	>	* @run junit/othervm/timeout=1000
30	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
31	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
32	>	*      -Djsr166.testImplementationDetails=true
33	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
34	>	*      -Djava.util.secureRandomSeed=true
35	>	*      JSR166TestCase
36	>	* @run junit/othervm/timeout=1000/policy=tck.policy
37	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
38	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
39	>	*      -Djsr166.testImplementationDetails=true
40	>	*      JSR166TestCase
41	>	*/
42	>
43		import static java.util.concurrent.TimeUnit.MILLISECONDS;
44	+	import static java.util.concurrent.TimeUnit.MINUTES;
45	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
46	+
47	+	import java.io.ByteArrayInputStream;
48	+	import java.io.ByteArrayOutputStream;
49	+	import java.io.ObjectInputStream;
50	+	import java.io.ObjectOutputStream;
51	+	import java.lang.management.ManagementFactory;
52	+	import java.lang.management.LockInfo;
53	+	import java.lang.management.ThreadInfo;
54	+	import java.lang.management.ThreadMXBean;
55	+	import java.lang.reflect.Constructor;
56	+	import java.lang.reflect.Method;
57	+	import java.lang.reflect.Modifier;
58		import java.security.CodeSource;
59		import java.security.Permission;
60		import java.security.PermissionCollection;
#	Line 18 | Line 62 | import java.security.Permissions;
62		import java.security.Policy;
63		import java.security.ProtectionDomain;
64		import java.security.SecurityPermission;
65	+	import java.util.ArrayList;
66	+	import java.util.Arrays;
67	+	import java.util.Collection;
68	+	import java.util.Collections;
69	+	import java.util.Date;
70	+	import java.util.Deque;
71	+	import java.util.Enumeration;
72	+	import java.util.HashSet;
73	+	import java.util.Iterator;
74	+	import java.util.List;
75	+	import java.util.NoSuchElementException;
76	+	import java.util.PropertyPermission;
77	+	import java.util.Queue;
78	+	import java.util.Set;
79	+	import java.util.concurrent.BlockingQueue;
80	+	import java.util.concurrent.Callable;
81	+	import java.util.concurrent.CountDownLatch;
82	+	import java.util.concurrent.CyclicBarrier;
83	+	import java.util.concurrent.ExecutionException;
84	+	import java.util.concurrent.Executor;
85	+	import java.util.concurrent.Executors;
86	+	import java.util.concurrent.ExecutorService;
87	+	import java.util.concurrent.ForkJoinPool;
88	+	import java.util.concurrent.Future;
89	+	import java.util.concurrent.FutureTask;
90	+	import java.util.concurrent.RecursiveAction;
91	+	import java.util.concurrent.RecursiveTask;
92	+	import java.util.concurrent.RejectedExecutionException;
93	+	import java.util.concurrent.RejectedExecutionHandler;
94	+	import java.util.concurrent.Semaphore;
95	+	import java.util.concurrent.ScheduledExecutorService;
96	+	import java.util.concurrent.ScheduledFuture;
97	+	import java.util.concurrent.SynchronousQueue;
98	+	import java.util.concurrent.ThreadFactory;
99	+	import java.util.concurrent.ThreadLocalRandom;
100	+	import java.util.concurrent.ThreadPoolExecutor;
101	+	import java.util.concurrent.TimeUnit;
102	+	import java.util.concurrent.TimeoutException;
103	+	import java.util.concurrent.atomic.AtomicBoolean;
104	+	import java.util.concurrent.atomic.AtomicReference;
105	+	import java.util.regex.Pattern;
106	+
107	+	import junit.framework.Test;
108	+	import junit.framework.TestCase;
109	+	import junit.framework.TestResult;
110	+	import junit.framework.TestSuite;
111
112		/**
113		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 29 | Line 119 | import java.security.SecurityPermission;
119		*
120		* <ol>
121		*
122	<	* <li> All assertions in code running in generated threads must use
123	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
124	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
125	<	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
126	<	* particularly recommended) for other code to use these forms too.
127	<	* Only the most typically used JUnit assertion methods are defined
128	<	* this way, but enough to live with.</li>
122	>	* <li>All code not running in the main test thread (manually spawned threads
123	>	* or the common fork join pool) must be checked for failure (and completion!).
124	>	* Mechanisms that can be used to ensure this are:
125	>	*   <ol>
126	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
127	>	*    that the task completed normally, which is checked before returning from
128	>	*    the test method in the main thread.
129	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
130	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
131	>	*    Only the most typically used JUnit assertion methods are defined
132	>	*    this way, but enough to live with.
133	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
134	>	*    or {@link #threadRecordFailure}.
135	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
136	>	*   </ol>
137		*
138	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
138	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
139		* to invoke {@code super.setUp} and {@code super.tearDown} within
140		* them. These methods are used to clear and check for thread
141	<	* assertion failures.</li>
141	>	* assertion failures.
142		*
143		* <li>All delays and timeouts must use one of the constants {@code
144		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 149 | import java.security.SecurityPermission;
149		* is always discriminable as larger than SHORT and smaller than
150		* MEDIUM.  And so on. These constants are set to conservative values,
151		* but even so, if there is ever any doubt, they can all be increased
152	<	* in one spot to rerun tests on slower platforms.</li>
152	>	* in one spot to rerun tests on slower platforms.
153	>	*
154	>	* Class Item is used for elements of collections and related
155	>	* purposes. Many tests rely on their keys being equal to ints. To
156	>	* check these, methods mustEqual, mustContain, etc adapt the JUnit
157	>	* assert methods to intercept ints.
158		*
159	<	* <li> All threads generated must be joined inside each test case
159	>	* <li>All threads generated must be joined inside each test case
160		* method (or {@code fail} to do so) before returning from the
161		* method. The {@code joinPool} method can be used to do this when
162	<	* using Executors.</li>
162	>	* using Executors.
163		*
164		* </ol>
165		*
166	<	* <p> <b>Other notes</b>
166	>	* <p><b>Other notes</b>
167		* <ul>
168		*
169	<	* <li> Usually, there is one testcase method per JSR166 method
169	>	* <li>Usually, there is one testcase method per JSR166 method
170		* covering "normal" operation, and then as many exception-testing
171		* methods as there are exceptions the method can throw. Sometimes
172		* there are multiple tests per JSR166 method when the different
173		* "normal" behaviors differ significantly. And sometimes testcases
174	<	* cover multiple methods when they cannot be tested in
72	<	* isolation.</li>
174	>	* cover multiple methods when they cannot be tested in isolation.
175		*
176	<	* <li> The documentation style for testcases is to provide as javadoc
176	>	* <li>The documentation style for testcases is to provide as javadoc
177		* a simple sentence or two describing the property that the testcase
178		* method purports to test. The javadocs do not say anything about how
179	<	* the property is tested. To find out, read the code.</li>
179	>	* the property is tested. To find out, read the code.
180		*
181	<	* <li> These tests are "conformance tests", and do not attempt to
181	>	* <li>These tests are "conformance tests", and do not attempt to
182		* test throughput, latency, scalability or other performance factors
183		* (see the separate "jtreg" tests for a set intended to check these
184		* for the most central aspects of functionality.) So, most tests use
185		* the smallest sensible numbers of threads, collection sizes, etc
186	<	* needed to check basic conformance.</li>
186	>	* needed to check basic conformance.
187		*
188		* <li>The test classes currently do not declare inclusion in
189		* any particular package to simplify things for people integrating
190	<	* them in TCK test suites.</li>
190	>	* them in TCK test suites.
191		*
192	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
193	<	* runs all JSR166 unit tests.</li>
192	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
193	>	* runs all JSR166 unit tests.
194		*
195		* </ul>
196		*/
197		public class JSR166TestCase extends TestCase {
198	+	// No longer run with custom securityManagers
199		private static final boolean useSecurityManager =
200	<	Boolean.getBoolean("jsr166.useSecurityManager");
200	>	Boolean.getBoolean("jsr166.useSecurityManager");
201	>
202	>	protected static final boolean expensiveTests =
203	>	Boolean.getBoolean("jsr166.expensiveTests");
204	>
205	>	/**
206	>	* If true, also run tests that are not part of the official tck
207	>	* because they test unspecified implementation details.
208	>	*/
209	>	protected static final boolean testImplementationDetails =
210	>	Boolean.getBoolean("jsr166.testImplementationDetails");
211	>
212	>	/**
213	>	* If true, report on stdout all "slow" tests, that is, ones that
214	>	* take more than profileThreshold milliseconds to execute.
215	>	*/
216	>	private static final boolean profileTests =
217	>	Boolean.getBoolean("jsr166.profileTests");
218	>
219	>	/**
220	>	* The number of milliseconds that tests are permitted for
221	>	* execution without being reported, when profileTests is set.
222	>	*/
223	>	private static final long profileThreshold =
224	>	Long.getLong("jsr166.profileThreshold", 100);
225	>
226	>	/**
227	>	* The number of repetitions per test (for tickling rare bugs).
228	>	*/
229	>	private static final int runsPerTest =
230	>	Integer.getInteger("jsr166.runsPerTest", 1);
231
232		/**
233	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
233	>	* The number of repetitions of the test suite (for finding leaks?).
234	>	*/
235	>	private static final int suiteRuns =
236	>	Integer.getInteger("jsr166.suiteRuns", 1);
237	>
238	>	/**
239	>	* Returns the value of the system property, or NaN if not defined.
240	>	*/
241	>	private static float systemPropertyValue(String name) {
242	>	String floatString = System.getProperty(name);
243	>	if (floatString == null)
244	>	return Float.NaN;
245	>	try {
246	>	return Float.parseFloat(floatString);
247	>	} catch (NumberFormatException ex) {
248	>	throw new IllegalArgumentException(
249	>	String.format("Bad float value in system property %s=%s",
250	>	name, floatString));
251	>	}
252	>	}
253	>
254	>	private static final ThreadMXBean THREAD_MXBEAN
255	>	= ManagementFactory.getThreadMXBean();
256	>
257	>	/**
258	>	* The scaling factor to apply to standard delays used in tests.
259	>	* May be initialized from any of:
260	>	* - the "jsr166.delay.factor" system property
261	>	* - the "test.timeout.factor" system property (as used by jtreg)
262	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
263	>	* - hard-coded fuzz factor when using a known slowpoke VM
264	>	*/
265	>	private static final float delayFactor = delayFactor();
266	>
267	>	private static float delayFactor() {
268	>	float x;
269	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
270	>	return x;
271	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
272	>	return x;
273	>	String prop = System.getProperty("java.vm.version");
274	>	if (prop != null && prop.matches(".*debug.*"))
275	>	return 4.0f; // How much slower is fastdebug than product?!
276	>	return 1.0f;
277	>	}
278	>
279	>	public JSR166TestCase() { super(); }
280	>	public JSR166TestCase(String name) { super(name); }
281	>
282	>	/**
283	>	* A filter for tests to run, matching strings of the form
284	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
285	>	* Usefully combined with jsr166.runsPerTest.
286	>	*/
287	>	private static final Pattern methodFilter = methodFilter();
288	>
289	>	private static Pattern methodFilter() {
290	>	String regex = System.getProperty("jsr166.methodFilter");
291	>	return (regex == null) ? null : Pattern.compile(regex);
292	>	}
293	>
294	>	// Instrumentation to debug very rare, but very annoying hung test runs.
295	>	static volatile TestCase currentTestCase;
296	>	// static volatile int currentRun = 0;
297	>	static {
298	>	Runnable wedgedTestDetector = new Runnable() { public void run() {
299	>	// Avoid spurious reports with enormous runsPerTest.
300	>	// A single test case run should never take more than 1 second.
301	>	// But let's cap it at the high end too ...
302	>	final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
303	>	* Math.max((int) delayFactor, 1);
304	>	final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
305	>	for (TestCase lastTestCase = currentTestCase;;) {
306	>	try { MINUTES.sleep(timeoutMinutes); }
307	>	catch (InterruptedException unexpected) { break; }
308	>	if (lastTestCase == currentTestCase) {
309	>	System.err.printf(
310	>	"Looks like we're stuck running test: %s%n",
311	>	lastTestCase);
312	>	//                     System.err.printf(
313	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
314	>	//                         lastTestCase, currentRun, runsPerTest);
315	>	//                     System.err.println("availableProcessors=" +
316	>	//                         Runtime.getRuntime().availableProcessors());
317	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
318	>	dumpTestThreads();
319	>	// one stack dump is probably enough; more would be spam
320	>	break;
321	>	}
322	>	lastTestCase = currentTestCase;
323	>	}}};
324	>	Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
325	>	thread.setDaemon(true);
326	>	thread.start();
327	>	}
328	>
329	>	//     public static String cpuModel() {
330	>	//         try {
331	>	//             java.util.regex.Matcher matcher
332	>	//               = Pattern.compile("model name\\s*: (.*)")
333	>	//                 .matcher(new String(
334	>	//                     java.nio.file.Files.readAllBytes(
335	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
336	>	//             matcher.find();
337	>	//             return matcher.group(1);
338	>	//         } catch (Exception ex) { return null; }
339	>	//     }
340	>
341	>	public void runBare() throws Throwable {
342	>	currentTestCase = this;
343	>	if (methodFilter == null
344	>	|| methodFilter.matcher(toString()).find())
345	>	super.runBare();
346	>	}
347	>
348	>	protected void runTest() throws Throwable {
349	>	for (int i = 0; i < runsPerTest; i++) {
350	>	// currentRun = i;
351	>	if (profileTests)
352	>	runTestProfiled();
353	>	else
354	>	super.runTest();
355	>	}
356	>	}
357	>
358	>	protected void runTestProfiled() throws Throwable {
359	>	for (int i = 0; i < 2; i++) {
360	>	long startTime = System.nanoTime();
361	>	super.runTest();
362	>	long elapsedMillis = millisElapsedSince(startTime);
363	>	if (elapsedMillis < profileThreshold)
364	>	break;
365	>	// Never report first run of any test; treat it as a
366	>	// warmup run, notably to trigger all needed classloading,
367	>	if (i > 0)
368	>	System.out.printf("%s: %d%n", toString(), elapsedMillis);
369	>	}
370	>	}
371	>
372	>	/**
373	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
374		*/
375		public static void main(String[] args) {
376	+	main(suite(), args);
377	+	}
378	+
379	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
380	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
381	+	long runTime;
382	+	public void startTest(Test test) {}
383	+	protected void printHeader(long runTime) {
384	+	this.runTime = runTime; // defer printing for later
385	+	}
386	+	protected void printFooter(TestResult result) {
387	+	if (result.wasSuccessful()) {
388	+	getWriter().println("OK (" + result.runCount() + " tests)"
389	+	+ "  Time: " + elapsedTimeAsString(runTime));
390	+	} else {
391	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
392	+	super.printFooter(result);
393	+	}
394	+	}
395	+	}
396	+
397	+	/**
398	+	* Returns a TestRunner that doesn't bother with unnecessary
399	+	* fluff, like printing a "." for each test case.
400	+	*/
401	+	static junit.textui.TestRunner newPithyTestRunner() {
402	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
403	+	runner.setPrinter(new PithyResultPrinter(System.out));
404	+	return runner;
405	+	}
406	+
407	+	/**
408	+	* Runs all unit tests in the given test suite.
409	+	* Actual behavior influenced by jsr166.* system properties.
410	+	*/
411	+	@SuppressWarnings("removal")
412	+	static void main(Test suite, String[] args) {
413		if (useSecurityManager) {
414		System.err.println("Setting a permissive security manager");
415		Policy.setPolicy(permissivePolicy());
416	<	System.setSecurityManager(new SecurityManager());
416	>	try {
417	>	System.setSecurityManager(new SecurityManager());
418	>	} catch(Throwable ok) {  // failure OK during deprecation
419	>	}
420		}
421	<	int iters = 1;
422	<	if (args.length > 0)
423	<	iters = Integer.parseInt(args[0]);
424	<	Test s = suite();
112	<	for (int i = 0; i < iters; ++i) {
113	<	junit.textui.TestRunner.run(s);
421	>	for (int i = 0; i < suiteRuns; i++) {
422	>	TestResult result = newPithyTestRunner().doRun(suite);
423	>	if (!result.wasSuccessful())
424	>	System.exit(1);
425		System.gc();
426		System.runFinalization();
427		}
117	–	System.exit(0);
428		}
429
430	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
431	+	TestSuite suite = new TestSuite();
432	+	for (Object suiteOrClass : suiteOrClasses) {
433	+	if (suiteOrClass instanceof TestSuite)
434	+	suite.addTest((TestSuite) suiteOrClass);
435	+	else if (suiteOrClass instanceof Class)
436	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
437	+	else
438	+	throw new ClassCastException("not a test suite or class");
439	+	}
440	+	return suite;
441	+	}
442	+
443	+	public static void addNamedTestClasses(TestSuite suite,
444	+	String... testClassNames) {
445	+	for (String testClassName : testClassNames) {
446	+	try {
447	+	Class<?> testClass = Class.forName(testClassName);
448	+	Method m = testClass.getDeclaredMethod("suite");
449	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
450	+	} catch (ReflectiveOperationException e) {
451	+	throw new AssertionError("Missing test class", e);
452	+	}
453	+	}
454	+	}
455	+
456	+	public static final double JAVA_CLASS_VERSION;
457	+	public static final String JAVA_SPECIFICATION_VERSION;
458	+	static {
459	+	try {
460	+	@SuppressWarnings("removal") double jcv =
461	+	java.security.AccessController.doPrivileged(
462	+	new java.security.PrivilegedAction<Double>() {
463	+	public Double run() {
464	+	return Double.valueOf(System.getProperty("java.class.version"));}});
465	+	JAVA_CLASS_VERSION = jcv;
466	+	@SuppressWarnings("removal") String jsv =
467	+	java.security.AccessController.doPrivileged(
468	+	new java.security.PrivilegedAction<String>() {
469	+	public String run() {
470	+	return System.getProperty("java.specification.version");}});
471	+	JAVA_SPECIFICATION_VERSION = jsv;
472	+	} catch (Throwable t) {
473	+	throw new Error(t);
474	+	}
475	+	}
476	+
477	+	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
478	+	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
479	+	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
480	+	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
481	+	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
482	+	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
483	+	public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
484	+	public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
485	+	public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
486	+	public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
487	+	public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
488	+	public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; }
489	+
490		/**
491	<	* Collects all JSR166 unit tests as one suite
491	>	* Collects all JSR166 unit tests as one suite.
492		*/
493		public static Test suite() {
494	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
494	>	// Java7+ test classes
495	>	TestSuite suite = newTestSuite(
496	>	ForkJoinPoolTest.suite(),
497	>	ForkJoinTaskTest.suite(),
498	>	RecursiveActionTest.suite(),
499	>	RecursiveTaskTest.suite(),
500	>	LinkedTransferQueueTest.suite(),
501	>	PhaserTest.suite(),
502	>	ThreadLocalRandomTest.suite(),
503	>	AbstractExecutorServiceTest.suite(),
504	>	AbstractQueueTest.suite(),
505	>	AbstractQueuedSynchronizerTest.suite(),
506	>	AbstractQueuedLongSynchronizerTest.suite(),
507	>	ArrayBlockingQueueTest.suite(),
508	>	ArrayDequeTest.suite(),
509	>	ArrayListTest.suite(),
510	>	AtomicBooleanTest.suite(),
511	>	AtomicIntegerArrayTest.suite(),
512	>	AtomicIntegerFieldUpdaterTest.suite(),
513	>	AtomicIntegerTest.suite(),
514	>	AtomicLongArrayTest.suite(),
515	>	AtomicLongFieldUpdaterTest.suite(),
516	>	AtomicLongTest.suite(),
517	>	AtomicMarkableReferenceTest.suite(),
518	>	AtomicReferenceArrayTest.suite(),
519	>	AtomicReferenceFieldUpdaterTest.suite(),
520	>	AtomicReferenceTest.suite(),
521	>	AtomicStampedReferenceTest.suite(),
522	>	ConcurrentHashMapTest.suite(),
523	>	ConcurrentLinkedDequeTest.suite(),
524	>	ConcurrentLinkedQueueTest.suite(),
525	>	ConcurrentSkipListMapTest.suite(),
526	>	ConcurrentSkipListSubMapTest.suite(),
527	>	ConcurrentSkipListSetTest.suite(),
528	>	ConcurrentSkipListSubSetTest.suite(),
529	>	CopyOnWriteArrayListTest.suite(),
530	>	CopyOnWriteArraySetTest.suite(),
531	>	CountDownLatchTest.suite(),
532	>	CountedCompleterTest.suite(),
533	>	CyclicBarrierTest.suite(),
534	>	DelayQueueTest.suite(),
535	>	EntryTest.suite(),
536	>	ExchangerTest.suite(),
537	>	ExecutorsTest.suite(),
538	>	ExecutorCompletionServiceTest.suite(),
539	>	FutureTaskTest.suite(),
540	>	HashtableTest.suite(),
541	>	LinkedBlockingDequeTest.suite(),
542	>	LinkedBlockingQueueTest.suite(),
543	>	LinkedListTest.suite(),
544	>	LockSupportTest.suite(),
545	>	PriorityBlockingQueueTest.suite(),
546	>	PriorityQueueTest.suite(),
547	>	ReentrantLockTest.suite(),
548	>	ReentrantReadWriteLockTest.suite(),
549	>	ScheduledExecutorTest.suite(),
550	>	ScheduledExecutorSubclassTest.suite(),
551	>	SemaphoreTest.suite(),
552	>	SynchronousQueueTest.suite(),
553	>	SystemTest.suite(),
554	>	ThreadLocalTest.suite(),
555	>	ThreadPoolExecutorTest.suite(),
556	>	ThreadPoolExecutorSubclassTest.suite(),
557	>	ThreadTest.suite(),
558	>	TimeUnitTest.suite(),
559	>	TreeMapTest.suite(),
560	>	TreeSetTest.suite(),
561	>	TreeSubMapTest.suite(),
562	>	TreeSubSetTest.suite(),
563	>	VectorTest.suite());
564	>
565	>	// Java8+ test classes
566	>	if (atLeastJava8()) {
567	>	String[] java8TestClassNames = {
568	>	"ArrayDeque8Test",
569	>	"Atomic8Test",
570	>	"CompletableFutureTest",
571	>	"ConcurrentHashMap8Test",
572	>	"CountedCompleter8Test",
573	>	"DoubleAccumulatorTest",
574	>	"DoubleAdderTest",
575	>	"ForkJoinPool8Test",
576	>	"ForkJoinTask8Test",
577	>	"HashMapTest",
578	>	"LinkedBlockingDeque8Test",
579	>	"LinkedBlockingQueue8Test",
580	>	"LinkedHashMapTest",
581	>	"LongAccumulatorTest",
582	>	"LongAdderTest",
583	>	"SplittableRandomTest",
584	>	"StampedLockTest",
585	>	"SubmissionPublisherTest",
586	>	"ThreadLocalRandom8Test",
587	>	"TimeUnit8Test",
588	>	};
589	>	addNamedTestClasses(suite, java8TestClassNames);
590	>	}
591	>
592	>	// Java9+ test classes
593	>	if (atLeastJava9()) {
594	>	String[] java9TestClassNames = {
595	>	"AtomicBoolean9Test",
596	>	"AtomicInteger9Test",
597	>	"AtomicIntegerArray9Test",
598	>	"AtomicLong9Test",
599	>	"AtomicLongArray9Test",
600	>	"AtomicReference9Test",
601	>	"AtomicReferenceArray9Test",
602	>	"ExecutorCompletionService9Test",
603	>	"ForkJoinPool9Test",
604	>	};
605	>	addNamedTestClasses(suite, java9TestClassNames);
606	>	}
607	>
608	>	if (atLeastJava17()) {
609	>	String[] java17TestClassNames = {
610	>	"ForkJoinPool19Test",
611	>	};
612	>	addNamedTestClasses(suite, java17TestClassNames);
613	>	}
614	>	return suite;
615	>	}
616
617	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
618	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
619	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
620	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
621	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
622	<	suite.addTest(new TestSuite(PhaserTest.class));
623	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
624	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
625	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
626	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
627	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
628	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
629	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
630	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
140	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
141	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
142	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
143	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
144	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
145	<	suite.addTest(new TestSuite(AtomicLongTest.class));
146	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
147	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
148	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
149	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
150	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
151	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
152	<	suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
153	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
154	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
155	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
156	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
157	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
158	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
159	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
160	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
161	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
162	<	suite.addTest(new TestSuite(DelayQueueTest.class));
163	<	suite.addTest(new TestSuite(EntryTest.class));
164	<	suite.addTest(new TestSuite(ExchangerTest.class));
165	<	suite.addTest(new TestSuite(ExecutorsTest.class));
166	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
167	<	suite.addTest(new TestSuite(FutureTaskTest.class));
168	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
169	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
170	<	suite.addTest(new TestSuite(LinkedListTest.class));
171	<	suite.addTest(new TestSuite(LockSupportTest.class));
172	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
173	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
174	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
175	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
176	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
177	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
178	<	suite.addTest(new TestSuite(SemaphoreTest.class));
179	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
180	<	suite.addTest(new TestSuite(SystemTest.class));
181	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
182	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
183	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
184	<	suite.addTest(new TestSuite(ThreadTest.class));
185	<	suite.addTest(new TestSuite(TimeUnitTest.class));
186	<	suite.addTest(new TestSuite(TreeMapTest.class));
187	<	suite.addTest(new TestSuite(TreeSetTest.class));
188	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
189	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
617	>	/** Returns list of junit-style test method names in given class. */
618	>	public static ArrayList<String> testMethodNames(Class<?> testClass) {
619	>	Method[] methods = testClass.getDeclaredMethods();
620	>	ArrayList<String> names = new ArrayList<>(methods.length);
621	>	for (Method method : methods) {
622	>	if (method.getName().startsWith("test")
623	>	&& Modifier.isPublic(method.getModifiers())
624	>	// method.getParameterCount() requires jdk8+
625	>	&& method.getParameterTypes().length == 0) {
626	>	names.add(method.getName());
627	>	}
628	>	}
629	>	return names;
630	>	}
631
632	<	return suite;
632	>	/**
633	>	* Returns junit-style testSuite for the given test class, but
634	>	* parameterized by passing extra data to each test.
635	>	*/
636	>	public static <ExtraData> Test parameterizedTestSuite
637	>	(Class<? extends JSR166TestCase> testClass,
638	>	Class<ExtraData> dataClass,
639	>	ExtraData data) {
640	>	try {
641	>	TestSuite suite = new TestSuite();
642	>	Constructor c =
643	>	testClass.getDeclaredConstructor(dataClass, String.class);
644	>	for (String methodName : testMethodNames(testClass))
645	>	suite.addTest((Test) c.newInstance(data, methodName));
646	>	return suite;
647	>	} catch (ReflectiveOperationException e) {
648	>	throw new AssertionError(e);
649	>	}
650		}
651
652	+	/**
653	+	* Returns junit-style testSuite for the jdk8 extension of the
654	+	* given test class, but parameterized by passing extra data to
655	+	* each test.  Uses reflection to allow compilation in jdk7.
656	+	*/
657	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
658	+	(Class<? extends JSR166TestCase> testClass,
659	+	Class<ExtraData> dataClass,
660	+	ExtraData data) {
661	+	if (atLeastJava8()) {
662	+	String name = testClass.getName();
663	+	String name8 = name.replaceAll("Test$", "8Test");
664	+	if (name.equals(name8)) throw new AssertionError(name);
665	+	try {
666	+	return (Test)
667	+	Class.forName(name8)
668	+	.getMethod("testSuite", dataClass)
669	+	.invoke(null, data);
670	+	} catch (ReflectiveOperationException e) {
671	+	throw new AssertionError(e);
672	+	}
673	+	} else {
674	+	return new TestSuite();
675	+	}
676	+	}
677	+
678	+	// Delays for timing-dependent tests, in milliseconds.
679
680		public static long SHORT_DELAY_MS;
681		public static long SMALL_DELAY_MS;
682		public static long MEDIUM_DELAY_MS;
683		public static long LONG_DELAY_MS;
684
685	+	/**
686	+	* A delay significantly longer than LONG_DELAY_MS.
687	+	* Use this in a thread that is waited for via awaitTermination(Thread).
688	+	*/
689	+	public static long LONGER_DELAY_MS;
690	+
691	+	private static final long RANDOM_TIMEOUT;
692	+	private static final long RANDOM_EXPIRED_TIMEOUT;
693	+	private static final TimeUnit RANDOM_TIMEUNIT;
694	+	static {
695	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
696	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
697	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
698	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
699	+	TimeUnit[] timeUnits = TimeUnit.values();
700	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
701	+	}
702
703		/**
704	<	* Returns the shortest timed delay. This could
203	<	* be reimplemented to use for example a Property.
704	>	* Returns a timeout for use when any value at all will do.
705		*/
706	<	protected long getShortDelay() {
707	<	return 50;
706	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
707	>
708	>	/**
709	>	* Returns a timeout that means "no waiting", i.e. not positive.
710	>	*/
711	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
712	>
713	>	/**
714	>	* Returns a random non-null TimeUnit.
715	>	*/
716	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
717	>
718	>	/**
719	>	* Returns a random boolean; a "coin flip".
720	>	*/
721	>	static boolean randomBoolean() {
722	>	return ThreadLocalRandom.current().nextBoolean();
723		}
724
725	+	/**
726	+	* Returns a random element from given choices.
727	+	*/
728	+	<T> T chooseRandomly(List<T> choices) {
729	+	return choices.get(ThreadLocalRandom.current().nextInt(choices.size()));
730	+	}
731	+
732	+	/**
733	+	* Returns a random element from given choices.
734	+	*/
735	+	@SuppressWarnings("unchecked")
736	+	<T> T chooseRandomly(T... choices) {
737	+	return choices[ThreadLocalRandom.current().nextInt(choices.length)];
738	+	}
739	+
740	+	/**
741	+	* Returns the shortest timed delay. This can be scaled up for
742	+	* slow machines using the jsr166.delay.factor system property,
743	+	* or via jtreg's -timeoutFactor: flag.
744	+	* http://openjdk.java.net/jtreg/command-help.html
745	+	*/
746	+	protected long getShortDelay() {
747	+	return (long) (50 * delayFactor);
748	+	}
749
750		/**
751		* Sets delays as multiples of SHORT_DELAY.
#	Line 214 | Line 754 | public class JSR166TestCase extends Test
754		SHORT_DELAY_MS = getShortDelay();
755		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
756		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
757	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
757	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
758	>	LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
759	>	}
760	>
761	>	private static final long TIMEOUT_DELAY_MS
762	>	= (long) (12.0 * Math.cbrt(delayFactor));
763	>
764	>	/**
765	>	* Returns a timeout in milliseconds to be used in tests that verify
766	>	* that operations block or time out.  We want this to be longer
767	>	* than the OS scheduling quantum, but not too long, so don't scale
768	>	* linearly with delayFactor; we use "crazy" cube root instead.
769	>	*/
770	>	static long timeoutMillis() {
771	>	return TIMEOUT_DELAY_MS;
772	>	}
773	>
774	>	/**
775	>	* Returns a new Date instance representing a time at least
776	>	* delayMillis milliseconds in the future.
777	>	*/
778	>	Date delayedDate(long delayMillis) {
779	>	// Add 1 because currentTimeMillis is known to round into the past.
780	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
781		}
782
783		/**
784		* The first exception encountered if any threadAssertXXX method fails.
785		*/
786		private final AtomicReference<Throwable> threadFailure
787	<	= new AtomicReference<Throwable>(null);
787	>	= new AtomicReference<>(null);
788
789		/**
790		* Records an exception so that it can be rethrown later in the test
#	Line 230 | Line 793 | public class JSR166TestCase extends Test
793		* the same test have no effect.
794		*/
795		public void threadRecordFailure(Throwable t) {
796	<	threadFailure.compareAndSet(null, t);
796	>	System.err.println(t);
797	>	if (threadFailure.compareAndSet(null, t))
798	>	dumpTestThreads();
799		}
800
801		public void setUp() {
802		setDelays();
803		}
804
805	+	void tearDownFail(String format, Object... args) {
806	+	String msg = toString() + ": " + String.format(format, args);
807	+	System.err.println(msg);
808	+	dumpTestThreads();
809	+	throw new AssertionError(msg);
810	+	}
811	+
812		/**
813	+	* Extra checks that get done for all test cases.
814	+	*
815		* Triggers test case failure if any thread assertions have failed,
816		* by rethrowing, in the test harness thread, any exception recorded
817		* earlier by threadRecordFailure.
818	+	*
819	+	* Triggers test case failure if interrupt status is set in the main thread.
820		*/
821		public void tearDown() throws Exception {
822	<	Throwable t = threadFailure.get();
822	>	Throwable t = threadFailure.getAndSet(null);
823		if (t != null) {
824		if (t instanceof Error)
825		throw (Error) t;
#	Line 252 | Line 828 | public class JSR166TestCase extends Test
828		else if (t instanceof Exception)
829		throw (Exception) t;
830		else
831	<	throw new AssertionError(t);
831	>	throw new AssertionError(t.toString(), t);
832		}
833	+
834	+	if (Thread.interrupted())
835	+	tearDownFail("interrupt status set in main thread");
836	+
837	+	checkForkJoinPoolThreadLeaks();
838	+	}
839	+
840	+	/**
841	+	* Finds missing PoolCleaners
842	+	*/
843	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
844	+	Thread[] survivors = new Thread[7];
845	+	int count = Thread.enumerate(survivors);
846	+	for (int i = 0; i < count; i++) {
847	+	Thread thread = survivors[i];
848	+	String name = thread.getName();
849	+	if (name.startsWith("ForkJoinPool-")) {
850	+	// give thread some time to terminate
851	+	thread.join(LONG_DELAY_MS);
852	+	if (thread.isAlive())
853	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
854	+	thread);
855	+	}
856	+	}
857	+
858	+	if (!ForkJoinPool.commonPool()
859	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
860	+	tearDownFail("ForkJoin common pool thread stuck");
861		}
862
863		/**
864		* Just like fail(reason), but additionally recording (using
865	<	* threadRecordFailure) any AssertionError thrown, so that the current
866	<	* testcase will fail.
865	>	* threadRecordFailure) any AssertionError thrown, so that the
866	>	* current testcase will fail.
867		*/
868		public void threadFail(String reason) {
869		try {
870		fail(reason);
871	<	} catch (Throwable t) {
872	<	threadRecordFailure(t);
873	<	fail(reason);
871	>	} catch (AssertionError fail) {
872	>	threadRecordFailure(fail);
873	>	throw fail;
874		}
875		}
876
877		/**
878		* Just like assertTrue(b), but additionally recording (using
879	<	* threadRecordFailure) any AssertionError thrown, so that the current
880	<	* testcase will fail.
879	>	* threadRecordFailure) any AssertionError thrown, so that the
880	>	* current testcase will fail.
881		*/
882		public void threadAssertTrue(boolean b) {
883		try {
884		assertTrue(b);
885	<	} catch (AssertionError t) {
886	<	threadRecordFailure(t);
887	<	throw t;
885	>	} catch (AssertionError fail) {
886	>	threadRecordFailure(fail);
887	>	throw fail;
888		}
889		}
890
#	Line 292 | Line 896 | public class JSR166TestCase extends Test
896		public void threadAssertFalse(boolean b) {
897		try {
898		assertFalse(b);
899	<	} catch (AssertionError t) {
900	<	threadRecordFailure(t);
901	<	throw t;
899	>	} catch (AssertionError fail) {
900	>	threadRecordFailure(fail);
901	>	throw fail;
902		}
903		}
904
#	Line 306 | Line 910 | public class JSR166TestCase extends Test
910		public void threadAssertNull(Object x) {
911		try {
912		assertNull(x);
913	<	} catch (AssertionError t) {
914	<	threadRecordFailure(t);
915	<	throw t;
913	>	} catch (AssertionError fail) {
914	>	threadRecordFailure(fail);
915	>	throw fail;
916		}
917		}
918
#	Line 320 | Line 924 | public class JSR166TestCase extends Test
924		public void threadAssertEquals(long x, long y) {
925		try {
926		assertEquals(x, y);
927	<	} catch (AssertionError t) {
928	<	threadRecordFailure(t);
929	<	throw t;
927	>	} catch (AssertionError fail) {
928	>	threadRecordFailure(fail);
929	>	throw fail;
930		}
931		}
932
#	Line 334 | Line 938 | public class JSR166TestCase extends Test
938		public void threadAssertEquals(Object x, Object y) {
939		try {
940		assertEquals(x, y);
941	<	} catch (AssertionError t) {
942	<	threadRecordFailure(t);
943	<	throw t;
941	>	} catch (AssertionError fail) {
942	>	threadRecordFailure(fail);
943	>	throw fail;
944	>	} catch (Throwable fail) {
945	>	threadUnexpectedException(fail);
946		}
947		}
948
#	Line 348 | Line 954 | public class JSR166TestCase extends Test
954		public void threadAssertSame(Object x, Object y) {
955		try {
956		assertSame(x, y);
957	<	} catch (AssertionError t) {
958	<	threadRecordFailure(t);
959	<	throw t;
957	>	} catch (AssertionError fail) {
958	>	threadRecordFailure(fail);
959	>	throw fail;
960		}
961		}
962
#	Line 369 | Line 975 | public class JSR166TestCase extends Test
975		}
976
977		/**
978	<	* Calls threadFail with message "Unexpected exception" + ex.
978	>	* Records the given exception using {@link #threadRecordFailure},
979	>	* then rethrows the exception, wrapping it in an AssertionError
980	>	* if necessary.
981		*/
982		public void threadUnexpectedException(Throwable t) {
983		threadRecordFailure(t);
984		t.printStackTrace();
377	–	// Rethrow, wrapping in an AssertionError if necessary
985		if (t instanceof RuntimeException)
986		throw (RuntimeException) t;
987		else if (t instanceof Error)
988		throw (Error) t;
989	<	else {
990	<	AssertionError ae = new AssertionError("unexpected exception: " + t);
991	<	t.initCause(t);
992	<	throw ae;
993	<	}
989	>	else
990	>	throw new AssertionError("unexpected exception: " + t, t);
991	>	}
992	>
993	>	/**
994	>	* Delays, via Thread.sleep, for the given millisecond delay, but
995	>	* if the sleep is shorter than specified, may re-sleep or yield
996	>	* until time elapses.  Ensures that the given time, as measured
997	>	* by System.nanoTime(), has elapsed.
998	>	*/
999	>	static void delay(long millis) throws InterruptedException {
1000	>	long nanos = millis * (1000 * 1000);
1001	>	final long wakeupTime = System.nanoTime() + nanos;
1002	>	do {
1003	>	if (millis > 0L)
1004	>	Thread.sleep(millis);
1005	>	else // too short to sleep
1006	>	Thread.yield();
1007	>	nanos = wakeupTime - System.nanoTime();
1008	>	millis = nanos / (1000 * 1000);
1009	>	} while (nanos >= 0L);
1010	>	}
1011	>
1012	>	/**
1013	>	* Allows use of try-with-resources with per-test thread pools.
1014	>	*/
1015	>	class PoolCleaner implements AutoCloseable {
1016	>	private final ExecutorService pool;
1017	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
1018	>	public void close() { joinPool(pool); }
1019	>	}
1020	>
1021	>	/**
1022	>	* An extension of PoolCleaner that has an action to release the pool.
1023	>	*/
1024	>	class PoolCleanerWithReleaser extends PoolCleaner {
1025	>	private final Runnable releaser;
1026	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
1027	>	super(pool);
1028	>	this.releaser = releaser;
1029	>	}
1030	>	public void close() {
1031	>	try {
1032	>	releaser.run();
1033	>	} finally {
1034	>	super.close();
1035	>	}
1036	>	}
1037	>	}
1038	>
1039	>	PoolCleaner cleaner(ExecutorService pool) {
1040	>	return new PoolCleaner(pool);
1041	>	}
1042	>
1043	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
1044	>	return new PoolCleanerWithReleaser(pool, releaser);
1045	>	}
1046	>
1047	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
1048	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
1049	>	}
1050	>
1051	>	Runnable releaser(final CountDownLatch latch) {
1052	>	return new Runnable() { public void run() {
1053	>	do { latch.countDown(); }
1054	>	while (latch.getCount() > 0);
1055	>	}};
1056	>	}
1057	>
1058	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1059	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
1060	>	}
1061	>
1062	>	Runnable releaser(final AtomicBoolean flag) {
1063	>	return new Runnable() { public void run() { flag.set(true); }};
1064		}
1065
1066		/**
1067		* Waits out termination of a thread pool or fails doing so.
1068		*/
1069	<	public void joinPool(ExecutorService exec) {
1069	>	void joinPool(ExecutorService pool) {
1070		try {
1071	<	exec.shutdown();
1072	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
1071	>	pool.shutdown();
1072	>	if (!pool.awaitTermination(20 * LONG_DELAY_MS, MILLISECONDS)) {
1073	>	try {
1074	>	threadFail("ExecutorService " + pool +
1075	>	" did not terminate in a timely manner");
1076	>	} finally {
1077	>	// last resort, for the benefit of subsequent tests
1078	>	pool.shutdownNow();
1079	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1080	>	}
1081	>	}
1082		} catch (SecurityException ok) {
1083		// Allowed in case test doesn't have privs
1084	<	} catch (InterruptedException ie) {
1085	<	fail("Unexpected InterruptedException");
1084	>	} catch (InterruptedException fail) {
1085	>	threadFail("Unexpected InterruptedException");
1086	>	}
1087	>	}
1088	>
1089	>	/**
1090	>	* Like Runnable, but with the freedom to throw anything.
1091	>	* junit folks had the same idea:
1092	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1093	>	*/
1094	>	interface Action { public void run() throws Throwable; }
1095	>
1096	>	/**
1097	>	* Runs all the given actions in parallel, failing if any fail.
1098	>	* Useful for running multiple variants of tests that are
1099	>	* necessarily individually slow because they must block.
1100	>	*/
1101	>	void testInParallel(Action ... actions) {
1102	>	ExecutorService pool = Executors.newCachedThreadPool();
1103	>	try (PoolCleaner cleaner = cleaner(pool)) {
1104	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1105	>	for (final Action action : actions)
1106	>	futures.add(pool.submit(new CheckedRunnable() {
1107	>	public void realRun() throws Throwable { action.run();}}));
1108	>	for (Future<?> future : futures)
1109	>	try {
1110	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1111	>	} catch (ExecutionException ex) {
1112	>	threadUnexpectedException(ex.getCause());
1113	>	} catch (Exception ex) {
1114	>	threadUnexpectedException(ex);
1115	>	}
1116	>	}
1117	>	}
1118	>
1119	>	/** Returns true if thread info might be useful in a thread dump. */
1120	>	static boolean threadOfInterest(ThreadInfo info) {
1121	>	final String name = info.getThreadName();
1122	>	String lockName;
1123	>	if (name == null)
1124	>	return true;
1125	>	if (name.equals("Signal Dispatcher")
1126	>	|| name.equals("WedgedTestDetector"))
1127	>	return false;
1128	>	if (name.equals("Reference Handler")) {
1129	>	// Reference Handler stacktrace changed in JDK-8156500
1130	>	StackTraceElement[] stackTrace; String methodName;
1131	>	if ((stackTrace = info.getStackTrace()) != null
1132	>	&& stackTrace.length > 0
1133	>	&& (methodName = stackTrace[0].getMethodName()) != null
1134	>	&& methodName.equals("waitForReferencePendingList"))
1135	>	return false;
1136	>	// jdk8 Reference Handler stacktrace
1137	>	if ((lockName = info.getLockName()) != null
1138	>	&& lockName.startsWith("java.lang.ref"))
1139	>	return false;
1140	>	}
1141	>	if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1142	>	&& (lockName = info.getLockName()) != null
1143	>	&& lockName.startsWith("java.lang.ref"))
1144	>	return false;
1145	>	if (name.startsWith("ForkJoinPool.commonPool-worker")
1146	>	&& (lockName = info.getLockName()) != null
1147	>	&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1148	>	return false;
1149	>	return true;
1150	>	}
1151	>
1152	>	/**
1153	>	* A debugging tool to print stack traces of most threads, as jstack does.
1154	>	* Uninteresting threads are filtered out.
1155	>	*/
1156	>	@SuppressWarnings("removal")
1157	>	static void dumpTestThreads() {
1158	>	SecurityManager sm = System.getSecurityManager();
1159	>	if (sm != null) {
1160	>	try {
1161	>	System.setSecurityManager(null);
1162	>	} catch (SecurityException giveUp) {
1163	>	return;
1164	>	}
1165	>	}
1166	>
1167	>	System.err.println("------ stacktrace dump start ------");
1168	>	for (ThreadInfo info : THREAD_MXBEAN.dumpAllThreads(true, true))
1169	>	if (threadOfInterest(info))
1170	>	System.err.print(info);
1171	>	System.err.println("------ stacktrace dump end ------");
1172	>
1173	>	if (sm != null) System.setSecurityManager(sm);
1174	>	}
1175	>
1176	>	/**
1177	>	* Checks that thread eventually enters the expected blocked thread state.
1178	>	*/
1179	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1180	>	// always sleep at least 1 ms, with high probability avoiding
1181	>	// transitory states
1182	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1183	>	try { delay(1); }
1184	>	catch (InterruptedException fail) {
1185	>	throw new AssertionError("Unexpected InterruptedException", fail);
1186	>	}
1187	>	Thread.State s = thread.getState();
1188	>	if (s == expected)
1189	>	return;
1190	>	else if (s == Thread.State.TERMINATED)
1191	>	fail("Unexpected thread termination");
1192		}
1193	+	fail("timed out waiting for thread to enter thread state " + expected);
1194		}
1195
1196	+	/**
1197	+	* Returns the thread's blocker's class name, if any, else null.
1198	+	*/
1199	+	String blockerClassName(Thread thread) {
1200	+	ThreadInfo threadInfo; LockInfo lockInfo;
1201	+	if ((threadInfo = THREAD_MXBEAN.getThreadInfo(thread.getId(), 0)) != null
1202	+	&& (lockInfo = threadInfo.getLockInfo()) != null)
1203	+	return lockInfo.getClassName();
1204	+	return null;
1205	+	}
1206	+
1207	+	/**
1208	+	* Checks that future.get times out, with the default timeout of
1209	+	* {@code timeoutMillis()}.
1210	+	*/
1211	+	void assertFutureTimesOut(Future<?> future) {
1212	+	assertFutureTimesOut(future, timeoutMillis());
1213	+	}
1214	+
1215	+	/**
1216	+	* Checks that future.get times out, with the given millisecond timeout.
1217	+	*/
1218	+	void assertFutureTimesOut(Future<?> future, long timeoutMillis) {
1219	+	long startTime = System.nanoTime();
1220	+	try {
1221	+	future.get(timeoutMillis, MILLISECONDS);
1222	+	shouldThrow();
1223	+	} catch (TimeoutException success) {
1224	+	} catch (Exception fail) {
1225	+	threadUnexpectedException(fail);
1226	+	}
1227	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1228	+	assertFalse(future.isDone());
1229	+	}
1230
1231		/**
1232		* Fails with message "should throw exception".
#	Line 416 | Line 1243 | public class JSR166TestCase extends Test
1243		}
1244
1245		/**
1246	<	* Fails with message "Unexpected exception: " + ex.
1246	>	* The maximum number of consecutive spurious wakeups we should
1247	>	* tolerate (from APIs like LockSupport.park) before failing a test.
1248		*/
1249	<	public void unexpectedException(Throwable ex) {
422	<	ex.printStackTrace();
423	<	fail("Unexpected exception: " + ex);
424	<	}
425	<
1249	>	static final int MAX_SPURIOUS_WAKEUPS = 10;
1250
1251		/**
1252		* The number of elements to place in collections, arrays, etc.
1253	+	* Must be at least ten;
1254		*/
1255	<	public static final int SIZE = 20;
431	<
432	<	// Some convenient Integer constants
433	<
434	<	public static final Integer zero  = new Integer(0);
435	<	public static final Integer one   = new Integer(1);
436	<	public static final Integer two   = new Integer(2);
437	<	public static final Integer three = new Integer(3);
438	<	public static final Integer four  = new Integer(4);
439	<	public static final Integer five  = new Integer(5);
440	<	public static final Integer six   = new Integer(6);
441	<	public static final Integer seven = new Integer(7);
442	<	public static final Integer eight = new Integer(8);
443	<	public static final Integer nine  = new Integer(9);
444	<	public static final Integer m1  = new Integer(-1);
445	<	public static final Integer m2  = new Integer(-2);
446	<	public static final Integer m3  = new Integer(-3);
447	<	public static final Integer m4  = new Integer(-4);
448	<	public static final Integer m5  = new Integer(-5);
449	<	public static final Integer m6  = new Integer(-6);
450	<	public static final Integer m10 = new Integer(-10);
1255	>	public static final int SIZE = 32;
1256
1257	+	static Item[] seqItems(int size) {
1258	+	Item[] s = new Item[size];
1259	+	for (int i = 0; i < size; ++i)
1260	+	s[i] = new Item(i);
1261	+	return s;
1262	+	}
1263	+	static Item[] negativeSeqItems(int size) {
1264	+	Item[] s = new Item[size];
1265	+	for (int i = 0; i < size; ++i)
1266	+	s[i] = new Item(-i);
1267	+	return s;
1268	+	}
1269	+
1270	+	// Many tests rely on defaultItems all being sequential nonnegative
1271	+	public static final Item[] defaultItems = seqItems(SIZE);
1272	+
1273	+	static Item itemFor(int i) { // check cache for defaultItems
1274	+	Item[] items = defaultItems;
1275	+	return (i >= 0 && i < items.length) ? items[i] : new Item(i);
1276	+	}
1277	+
1278	+	public static final Item zero  = defaultItems[0];
1279	+	public static final Item one   = defaultItems[1];
1280	+	public static final Item two   = defaultItems[2];
1281	+	public static final Item three = defaultItems[3];
1282	+	public static final Item four  = defaultItems[4];
1283	+	public static final Item five  = defaultItems[5];
1284	+	public static final Item six   = defaultItems[6];
1285	+	public static final Item seven = defaultItems[7];
1286	+	public static final Item eight = defaultItems[8];
1287	+	public static final Item nine  = defaultItems[9];
1288	+	public static final Item ten   = defaultItems[10];
1289	+
1290	+	public static final Item[] negativeItems = negativeSeqItems(SIZE);
1291	+
1292	+	public static final Item minusOne   = negativeItems[1];
1293	+	public static final Item minusTwo   = negativeItems[2];
1294	+	public static final Item minusThree = negativeItems[3];
1295	+	public static final Item minusFour  = negativeItems[4];
1296	+	public static final Item minusFive  = negativeItems[5];
1297	+	public static final Item minusSix   = negativeItems[6];
1298	+	public static final Item minusSeven = negativeItems[7];
1299	+	public static final Item minusEight = negativeItems[8];
1300	+	public static final Item minusNone  = negativeItems[9];
1301	+	public static final Item minusTen   = negativeItems[10];
1302	+
1303	+	// elements expected to be missing
1304	+	public static final Item fortytwo = new Item(42);
1305	+	public static final Item eightysix = new Item(86);
1306	+	public static final Item ninetynine = new Item(99);
1307	+
1308	+	// Interop across Item, int
1309	+
1310	+	static void mustEqual(Item x, Item y) {
1311	+	if (x != y)
1312	+	assertEquals(x.value, y.value);
1313	+	}
1314	+	static void mustEqual(Item x, int y) {
1315	+	assertEquals(x.value, y);
1316	+	}
1317	+	static void mustEqual(int x, Item y) {
1318	+	assertEquals(x, y.value);
1319	+	}
1320	+	static void mustEqual(int x, int y) {
1321	+	assertEquals(x, y);
1322	+	}
1323	+	static void mustEqual(Object x, Object y) {
1324	+	if (x != y)
1325	+	assertEquals(x, y);
1326	+	}
1327	+	static void mustEqual(int x, Object y) {
1328	+	if (y instanceof Item)
1329	+	assertEquals(x, ((Item)y).value);
1330	+	else fail();
1331	+	}
1332	+	static void mustEqual(Object x, int y) {
1333	+	if (x instanceof Item)
1334	+	assertEquals(((Item)x).value, y);
1335	+	else fail();
1336	+	}
1337	+	static void mustEqual(boolean x, boolean y) {
1338	+	assertEquals(x, y);
1339	+	}
1340	+	static void mustEqual(long x, long y) {
1341	+	assertEquals(x, y);
1342	+	}
1343	+	static void mustEqual(double x, double y) {
1344	+	assertEquals(x, y);
1345	+	}
1346	+	static void mustContain(Collection<Item> c, int i) {
1347	+	assertTrue(c.contains(itemFor(i)));
1348	+	}
1349	+	static void mustContain(Collection<Item> c, Item i) {
1350	+	assertTrue(c.contains(i));
1351	+	}
1352	+	static void mustNotContain(Collection<Item> c, int i) {
1353	+	assertFalse(c.contains(itemFor(i)));
1354	+	}
1355	+	static void mustNotContain(Collection<Item> c, Item i) {
1356	+	assertFalse(c.contains(i));
1357	+	}
1358	+	static void mustRemove(Collection<Item> c, int i) {
1359	+	assertTrue(c.remove(itemFor(i)));
1360	+	}
1361	+	static void mustRemove(Collection<Item> c, Item i) {
1362	+	assertTrue(c.remove(i));
1363	+	}
1364	+	static void mustNotRemove(Collection<Item> c, int i) {
1365	+	assertFalse(c.remove(itemFor(i)));
1366	+	}
1367	+	static void mustNotRemove(Collection<Item> c, Item i) {
1368	+	assertFalse(c.remove(i));
1369	+	}
1370	+	static void mustAdd(Collection<Item> c, int i) {
1371	+	assertTrue(c.add(itemFor(i)));
1372	+	}
1373	+	static void mustAdd(Collection<Item> c, Item i) {
1374	+	assertTrue(c.add(i));
1375	+	}
1376	+	static void mustOffer(Queue<Item> c, int i) {
1377	+	assertTrue(c.offer(itemFor(i)));
1378	+	}
1379	+	static void mustOffer(Queue<Item> c, Item i) {
1380	+	assertTrue(c.offer(i));
1381	+	}
1382
1383		/**
1384		* Runs Runnable r with a security policy that permits precisely
#	Line 457 | Line 1387 | public class JSR166TestCase extends Test
1387		* security manager.  We require that any security manager permit
1388		* getPolicy/setPolicy.
1389		*/
1390	+	@SuppressWarnings("removal")
1391		public void runWithPermissions(Runnable r, Permission... permissions) {
1392		SecurityManager sm = System.getSecurityManager();
1393		if (sm == null) {
1394		r.run();
1395	+	}
1396	+	runWithSecurityManagerWithPermissions(r, permissions);
1397	+	}
1398	+
1399	+	/**
1400	+	* Runs Runnable r with a security policy that permits precisely
1401	+	* the specified permissions.  If there is no current security
1402	+	* manager, a temporary one is set for the duration of the
1403	+	* Runnable.  We require that any security manager permit
1404	+	* getPolicy/setPolicy.
1405	+	*/
1406	+	@SuppressWarnings("removal")
1407	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1408	+	Permission... permissions) {
1409	+	if (!useSecurityManager) return;
1410	+	SecurityManager sm = System.getSecurityManager();
1411	+	if (sm == null) {
1412		Policy savedPolicy = Policy.getPolicy();
1413		try {
1414		Policy.setPolicy(permissivePolicy());
1415		System.setSecurityManager(new SecurityManager());
1416	<	runWithPermissions(r, permissions);
1416	>	runWithSecurityManagerWithPermissions(r, permissions);
1417	>	} catch (UnsupportedOperationException ok) {
1418		} finally {
1419	<	System.setSecurityManager(null);
1420	<	Policy.setPolicy(savedPolicy);
1419	>	try {
1420	>	System.setSecurityManager(null);
1421	>	Policy.setPolicy(savedPolicy);
1422	>	} catch (Exception ok) {
1423	>	}
1424		}
1425		} else {
1426		Policy savedPolicy = Policy.getPolicy();
#	Line 495 | Line 1447 | public class JSR166TestCase extends Test
1447		* A security policy where new permissions can be dynamically added
1448		* or all cleared.
1449		*/
1450	+	@SuppressWarnings("removal")
1451		public static class AdjustablePolicy extends java.security.Policy {
1452		Permissions perms = new Permissions();
1453		AdjustablePolicy(Permission... permissions) {
#	Line 513 | Line 1466 | public class JSR166TestCase extends Test
1466		return perms.implies(p);
1467		}
1468		public void refresh() {}
1469	+	public String toString() {
1470	+	List<Permission> ps = new ArrayList<>();
1471	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1472	+	ps.add(e.nextElement());
1473	+	return "AdjustablePolicy with permissions " + ps;
1474	+	}
1475		}
1476
1477		/**
1478		* Returns a policy containing all the permissions we ever need.
1479		*/
1480	+	@SuppressWarnings("removal")
1481		public static Policy permissivePolicy() {
1482		return new AdjustablePolicy
1483		// Permissions j.u.c. needs directly
#	Line 535 | Line 1495 | public class JSR166TestCase extends Test
1495		}
1496
1497		/**
1498	<	* Sleep until the timeout has elapsed, or interrupted.
1499	<	* Does <em>NOT</em> throw InterruptedException.
1498	>	* Sleeps until the given time has elapsed.
1499	>	* Throws AssertionError if interrupted.
1500		*/
1501	<	void sleepTillInterrupted(long timeoutMillis) {
1501	>	static void sleep(long millis) {
1502		try {
1503	<	Thread.sleep(timeoutMillis);
1504	<	} catch (InterruptedException wakeup) {}
1503	>	delay(millis);
1504	>	} catch (InterruptedException fail) {
1505	>	throw new AssertionError("Unexpected InterruptedException", fail);
1506	>	}
1507		}
1508
1509		/**
1510	<	* Returns a new started Thread running the given runnable.
1510	>	* Spin-waits up to the specified number of milliseconds for the given
1511	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1512	>	* @param waitingForGodot if non-null, an additional condition to satisfy
1513	>	*/
1514	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1515	>	Callable<Boolean> waitingForGodot) {
1516	>	for (long startTime = 0L;;) {
1517	>	switch (thread.getState()) {
1518	>	default: break;
1519	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1520	>	try {
1521	>	if (waitingForGodot == null || waitingForGodot.call())
1522	>	return;
1523	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1524	>	break;
1525	>	case TERMINATED:
1526	>	fail("Unexpected thread termination");
1527	>	}
1528	>
1529	>	if (startTime == 0L)
1530	>	startTime = System.nanoTime();
1531	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1532	>	assertTrue(thread.isAlive());
1533	>	if (waitingForGodot == null
1534	>	|| thread.getState() == Thread.State.RUNNABLE)
1535	>	fail("timed out waiting for thread to enter wait state");
1536	>	else
1537	>	fail("timed out waiting for condition, thread state="
1538	>	+ thread.getState());
1539	>	}
1540	>	Thread.yield();
1541	>	}
1542	>	}
1543	>
1544	>	/**
1545	>	* Spin-waits up to the specified number of milliseconds for the given
1546	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1547	>	*/
1548	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1549	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1550	>	}
1551	>
1552	>	/**
1553	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1554	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1555	>	*/
1556	>	void waitForThreadToEnterWaitState(Thread thread) {
1557	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1558	>	}
1559	>
1560	>	/**
1561	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1562	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1563	>	* and additionally satisfy the given condition.
1564	>	*/
1565	>	void waitForThreadToEnterWaitState(Thread thread,
1566	>	Callable<Boolean> waitingForGodot) {
1567	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1568	>	}
1569	>
1570	>	/**
1571	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
1572	>	* be interrupted.  Clears the interrupt status before returning.
1573	>	*/
1574	>	void awaitInterrupted() {
1575	>	for (long startTime = 0L; !Thread.interrupted(); ) {
1576	>	if (startTime == 0L)
1577	>	startTime = System.nanoTime();
1578	>	else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
1579	>	fail("timed out waiting for thread interrupt");
1580	>	Thread.yield();
1581	>	}
1582	>	}
1583	>
1584	>	/**
1585	>	* Returns the number of milliseconds since time given by
1586	>	* startNanoTime, which must have been previously returned from a
1587	>	* call to {@link System#nanoTime()}.
1588	>	*/
1589	>	static long millisElapsedSince(long startNanoTime) {
1590	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1591	>	}
1592	>
1593	>	/**
1594	>	* Checks that timed f.get() returns the expected value, and does not
1595	>	* wait for the timeout to elapse before returning.
1596	>	*/
1597	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1598	>	long startTime = System.nanoTime();
1599	>	T actual = null;
1600	>	try {
1601	>	actual = f.get(timeoutMillis, MILLISECONDS);
1602	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1603	>	assertEquals(expectedValue, actual);
1604	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1605	>	throw new AssertionError("timed get did not return promptly");
1606	>	}
1607	>
1608	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1609	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1610	>	}
1611	>
1612	>	/**
1613	>	* Returns a new started daemon Thread running the given runnable.
1614		*/
1615		Thread newStartedThread(Runnable runnable) {
1616		Thread t = new Thread(runnable);
1617	+	t.setDaemon(true);
1618		t.start();
1619		return t;
1620		}
1621
1622	<	// Some convenient Runnable classes
1623	<
1624	<	public abstract class CheckedRunnable implements Runnable {
1625	<	protected abstract void realRun() throws Throwable;
1622	>	/**
1623	>	* Returns a new started daemon Thread running the given action,
1624	>	* wrapped in a CheckedRunnable.
1625	>	*/
1626	>	Thread newStartedThread(Action action) {
1627	>	return newStartedThread(checkedRunnable(action));
1628	>	}
1629
1630	<	public final void run() {
1630	>	/**
1631	>	* Waits for the specified time (in milliseconds) for the thread
1632	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1633	>	* the thread (in the hope that it may terminate later) and fails.
1634	>	*/
1635	>	void awaitTermination(Thread thread, long timeoutMillis) {
1636	>	try {
1637	>	thread.join(timeoutMillis);
1638	>	} catch (InterruptedException fail) {
1639	>	threadUnexpectedException(fail);
1640	>	}
1641	>	if (thread.getState() != Thread.State.TERMINATED) {
1642	>	String detail = String.format(
1643	>	"timed out waiting for thread to terminate, thread=%s, state=%s" ,
1644	>	thread, thread.getState());
1645		try {
1646	<	realRun();
1647	<	} catch (Throwable t) {
1648	<	threadUnexpectedException(t);
1646	>	threadFail(detail);
1647	>	} finally {
1648	>	// Interrupt thread __after__ having reported its stack trace
1649	>	thread.interrupt();
1650		}
1651		}
1652		}
1653
1654	<	public abstract class RunnableShouldThrow implements Runnable {
1655	<	protected abstract void realRun() throws Throwable;
1654	>	/**
1655	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1656	>	* terminate (using {@link Thread#join(long)}), else interrupts
1657	>	* the thread (in the hope that it may terminate later) and fails.
1658	>	*/
1659	>	void awaitTermination(Thread t) {
1660	>	awaitTermination(t, LONG_DELAY_MS);
1661	>	}
1662
1663	<	final Class<?> exceptionClass;
1663	>	// Some convenient Runnable classes
1664
1665	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1666	<	this.exceptionClass = exceptionClass;
577	<	}
1665	>	public abstract class CheckedRunnable implements Runnable {
1666	>	protected abstract void realRun() throws Throwable;
1667
1668		public final void run() {
1669		try {
1670		realRun();
1671	<	threadShouldThrow(exceptionClass.getSimpleName());
1672	<	} catch (Throwable t) {
584	<	if (! exceptionClass.isInstance(t))
585	<	threadUnexpectedException(t);
1671	>	} catch (Throwable fail) {
1672	>	threadUnexpectedException(fail);
1673		}
1674		}
1675		}
1676
1677	+	Runnable checkedRunnable(Action action) {
1678	+	return new CheckedRunnable() {
1679	+	public void realRun() throws Throwable {
1680	+	action.run();
1681	+	}};
1682	+	}
1683	+
1684		public abstract class ThreadShouldThrow extends Thread {
1685		protected abstract void realRun() throws Throwable;
1686
#	Line 599 | Line 1693 | public class JSR166TestCase extends Test
1693		public final void run() {
1694		try {
1695		realRun();
602	–	threadShouldThrow(exceptionClass.getSimpleName());
1696		} catch (Throwable t) {
1697		if (! exceptionClass.isInstance(t))
1698		threadUnexpectedException(t);
1699	+	return;
1700		}
1701	+	threadShouldThrow(exceptionClass.getSimpleName());
1702		}
1703		}
1704
#	Line 613 | Line 1708 | public class JSR166TestCase extends Test
1708		public final void run() {
1709		try {
1710		realRun();
616	–	threadShouldThrow("InterruptedException");
1711		} catch (InterruptedException success) {
1712	<	} catch (Throwable t) {
1713	<	threadUnexpectedException(t);
1712	>	threadAssertFalse(Thread.interrupted());
1713	>	return;
1714	>	} catch (Throwable fail) {
1715	>	threadUnexpectedException(fail);
1716		}
1717	+	threadShouldThrow("InterruptedException");
1718		}
1719		}
1720
#	Line 627 | Line 1724 | public class JSR166TestCase extends Test
1724		public final T call() {
1725		try {
1726		return realCall();
1727	<	} catch (Throwable t) {
1728	<	threadUnexpectedException(t);
632	<	return null;
1727	>	} catch (Throwable fail) {
1728	>	threadUnexpectedException(fail);
1729		}
1730	<	}
635	<	}
636	<
637	<	public abstract class CheckedInterruptedCallable<T>
638	<	implements Callable<T> {
639	<	protected abstract T realCall() throws Throwable;
640	<
641	<	public final T call() {
642	<	try {
643	<	T result = realCall();
644	<	threadShouldThrow("InterruptedException");
645	<	return result;
646	<	} catch (InterruptedException success) {
647	<	} catch (Throwable t) {
648	<	threadUnexpectedException(t);
649	<	}
650	<	return null;
1730	>	throw new AssertionError("unreached");
1731		}
1732		}
1733
#	Line 655 | Line 1735 | public class JSR166TestCase extends Test
1735		public void run() {}
1736		}
1737
1738	<	public static class NoOpCallable implements Callable {
1738	>	public static class NoOpCallable implements Callable<Object> {
1739		public Object call() { return Boolean.TRUE; }
1740		}
1741
1742		public static final String TEST_STRING = "a test string";
1743
1744		public static class StringTask implements Callable<String> {
1745	<	public String call() { return TEST_STRING; }
1745	>	final String value;
1746	>	public StringTask() { this(TEST_STRING); }
1747	>	public StringTask(String value) { this.value = value; }
1748	>	public String call() { return value; }
1749		}
1750
1751		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1752		return new CheckedCallable<String>() {
1753	<	public String realCall() {
1753	>	protected String realCall() {
1754		try {
1755		latch.await();
1756		} catch (InterruptedException quittingTime) {}
#	Line 675 | Line 1758 | public class JSR166TestCase extends Test
1758		}};
1759		}
1760
1761	<	public static class NPETask implements Callable<String> {
1762	<	public String call() { throw new NullPointerException(); }
1763	<	}
1764	<
1765	<	public static class CallableOne implements Callable<Integer> {
683	<	public Integer call() { return one; }
684	<	}
685	<
686	<	public class ShortRunnable extends CheckedRunnable {
687	<	protected void realRun() throws Throwable {
688	<	Thread.sleep(SHORT_DELAY_MS);
689	<	}
1761	>	public Runnable countDowner(final CountDownLatch latch) {
1762	>	return new CheckedRunnable() {
1763	>	public void realRun() throws InterruptedException {
1764	>	latch.countDown();
1765	>	}};
1766		}
1767
1768	<	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1769	<	protected void realRun() throws InterruptedException {
1770	<	Thread.sleep(SHORT_DELAY_MS);
1768	>	class LatchAwaiter extends CheckedRunnable {
1769	>	static final int NEW = 0;
1770	>	static final int RUNNING = 1;
1771	>	static final int DONE = 2;
1772	>	final CountDownLatch latch;
1773	>	int state = NEW;
1774	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1775	>	public void realRun() throws InterruptedException {
1776	>	state = 1;
1777	>	await(latch);
1778	>	state = 2;
1779		}
1780		}
1781
1782	<	public class SmallRunnable extends CheckedRunnable {
1783	<	protected void realRun() throws Throwable {
700	<	Thread.sleep(SMALL_DELAY_MS);
701	<	}
1782	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1783	>	return new LatchAwaiter(latch);
1784		}
1785
1786	<	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1787	<	protected void realRun() {
1788	<	try {
1789	<	Thread.sleep(SMALL_DELAY_MS);
1790	<	} catch (InterruptedException ok) {}
1786	>	public void await(CountDownLatch latch, long timeoutMillis) {
1787	>	boolean timedOut = false;
1788	>	try {
1789	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1790	>	} catch (Throwable fail) {
1791	>	threadUnexpectedException(fail);
1792		}
1793	+	if (timedOut)
1794	+	fail("timed out waiting for CountDownLatch for "
1795	+	+ (timeoutMillis/1000) + " sec");
1796		}
1797
1798	<	public class SmallCallable extends CheckedCallable {
1799	<	protected Object realCall() throws InterruptedException {
714	<	Thread.sleep(SMALL_DELAY_MS);
715	<	return Boolean.TRUE;
716	<	}
1798	>	public void await(CountDownLatch latch) {
1799	>	await(latch, LONG_DELAY_MS);
1800		}
1801
1802	<	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
1803	<	protected void realRun() throws InterruptedException {
1804	<	Thread.sleep(SMALL_DELAY_MS);
1802	>	public void await(Semaphore semaphore) {
1803	>	boolean timedOut = false;
1804	>	try {
1805	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1806	>	} catch (Throwable fail) {
1807	>	threadUnexpectedException(fail);
1808		}
1809	+	if (timedOut)
1810	+	fail("timed out waiting for Semaphore for "
1811	+	+ (LONG_DELAY_MS/1000) + " sec");
1812		}
1813
1814	<	public class MediumRunnable extends CheckedRunnable {
1815	<	protected void realRun() throws Throwable {
1816	<	Thread.sleep(MEDIUM_DELAY_MS);
1814	>	public void await(CyclicBarrier barrier) {
1815	>	try {
1816	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1817	>	} catch (Throwable fail) {
1818	>	threadUnexpectedException(fail);
1819		}
1820		}
1821
1822	<	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1823	<	protected void realRun() throws InterruptedException {
1824	<	Thread.sleep(MEDIUM_DELAY_MS);
1825	<	}
1826	<	}
1822	>	//     /**
1823	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1824	>	//      */
1825	>	//     public void await(AtomicBoolean flag) {
1826	>	//         await(flag, LONG_DELAY_MS);
1827	>	//     }
1828	>
1829	>	//     /**
1830	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1831	>	//      */
1832	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1833	>	//         long startTime = System.nanoTime();
1834	>	//         while (!flag.get()) {
1835	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1836	>	//                 throw new AssertionError("timed out");
1837	>	//             Thread.yield();
1838	>	//         }
1839	>	//     }
1840
1841	<	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1842	<	protected void realRun() {
739	<	try {
740	<	Thread.sleep(MEDIUM_DELAY_MS);
741	<	} catch (InterruptedException ok) {}
742	<	}
1841	>	public static class NPETask implements Callable<String> {
1842	>	public String call() { throw new NullPointerException(); }
1843		}
1844
1845	<	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1846	<	protected void realRun() {
1847	<	try {
1848	<	Thread.sleep(LONG_DELAY_MS);
1849	<	} catch (InterruptedException ok) {}
1850	<	}
1845	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1846	>	return new CheckedRunnable() {
1847	>	protected void realRun() {
1848	>	try {
1849	>	delay(timeoutMillis);
1850	>	} catch (InterruptedException ok) {}
1851	>	}};
1852		}
1853
1854		/**
#	Line 759 | Line 1860 | public class JSR166TestCase extends Test
1860		}
1861		}
1862
1863	<	public static class TrackedShortRunnable implements Runnable {
1864	<	public volatile boolean done = false;
764	<	public void run() {
765	<	try {
766	<	Thread.sleep(SMALL_DELAY_MS);
767	<	done = true;
768	<	} catch (InterruptedException ok) {}
769	<	}
770	<	}
771	<
772	<	public static class TrackedMediumRunnable implements Runnable {
773	<	public volatile boolean done = false;
774	<	public void run() {
775	<	try {
776	<	Thread.sleep(MEDIUM_DELAY_MS);
777	<	done = true;
778	<	} catch (InterruptedException ok) {}
779	<	}
780	<	}
781	<
782	<	public static class TrackedLongRunnable implements Runnable {
783	<	public volatile boolean done = false;
784	<	public void run() {
785	<	try {
786	<	Thread.sleep(LONG_DELAY_MS);
787	<	done = true;
788	<	} catch (InterruptedException ok) {}
789	<	}
1863	>	public interface TrackedRunnable extends Runnable {
1864	>	boolean isDone();
1865		}
1866
1867		public static class TrackedNoOpRunnable implements Runnable {
#	Line 796 | Line 1871 | public class JSR166TestCase extends Test
1871		}
1872		}
1873
799	–	public static class TrackedCallable implements Callable {
800	–	public volatile boolean done = false;
801	–	public Object call() {
802	–	try {
803	–	Thread.sleep(SMALL_DELAY_MS);
804	–	done = true;
805	–	} catch (InterruptedException ok) {}
806	–	return Boolean.TRUE;
807	–	}
808	–	}
809	–
1874		/**
1875		* Analog of CheckedRunnable for RecursiveAction
1876		*/
1877		public abstract class CheckedRecursiveAction extends RecursiveAction {
1878		protected abstract void realCompute() throws Throwable;
1879
1880	<	public final void compute() {
1880	>	@Override protected final void compute() {
1881		try {
1882		realCompute();
1883	<	} catch (Throwable t) {
1884	<	threadUnexpectedException(t);
1883	>	} catch (Throwable fail) {
1884	>	threadUnexpectedException(fail);
1885		}
1886		}
1887		}
#	Line 828 | Line 1892 | public class JSR166TestCase extends Test
1892		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1893		protected abstract T realCompute() throws Throwable;
1894
1895	<	public final T compute() {
1895	>	@Override protected final T compute() {
1896		try {
1897		return realCompute();
1898	<	} catch (Throwable t) {
1899	<	threadUnexpectedException(t);
836	<	return null;
1898	>	} catch (Throwable fail) {
1899	>	threadUnexpectedException(fail);
1900		}
1901	+	throw new AssertionError("unreached");
1902		}
1903		}
1904
#	Line 846 | Line 1910 | public class JSR166TestCase extends Test
1910		ThreadPoolExecutor executor) {}
1911		}
1912
1913	+	/**
1914	+	* A CyclicBarrier that uses timed await and fails with
1915	+	* AssertionErrors instead of throwing checked exceptions.
1916	+	*/
1917	+	public static class CheckedBarrier extends CyclicBarrier {
1918	+	public CheckedBarrier(int parties) { super(parties); }
1919	+
1920	+	public int await() {
1921	+	try {
1922	+	return super.await(LONGER_DELAY_MS, MILLISECONDS);
1923	+	} catch (TimeoutException timedOut) {
1924	+	throw new AssertionError("timed out");
1925	+	} catch (Exception fail) {
1926	+	throw new AssertionError("Unexpected exception: " + fail, fail);
1927	+	}
1928	+	}
1929	+	}
1930	+
1931	+	void checkEmpty(BlockingQueue<?> q) {
1932	+	try {
1933	+	assertTrue(q.isEmpty());
1934	+	assertEquals(0, q.size());
1935	+	assertNull(q.peek());
1936	+	assertNull(q.poll());
1937	+	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1938	+	assertEquals(q.toString(), "[]");
1939	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1940	+	assertFalse(q.iterator().hasNext());
1941	+	try {
1942	+	q.element();
1943	+	shouldThrow();
1944	+	} catch (NoSuchElementException success) {}
1945	+	try {
1946	+	q.iterator().next();
1947	+	shouldThrow();
1948	+	} catch (NoSuchElementException success) {}
1949	+	try {
1950	+	q.remove();
1951	+	shouldThrow();
1952	+	} catch (NoSuchElementException success) {}
1953	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1954	+	}
1955	+
1956	+	void assertSerialEquals(Object x, Object y) {
1957	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1958	+	}
1959	+
1960	+	void assertNotSerialEquals(Object x, Object y) {
1961	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1962	+	}
1963	+
1964	+	byte[] serialBytes(Object o) {
1965	+	try {
1966	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1967	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1968	+	oos.writeObject(o);
1969	+	oos.flush();
1970	+	oos.close();
1971	+	return bos.toByteArray();
1972	+	} catch (Throwable fail) {
1973	+	threadUnexpectedException(fail);
1974	+	return new byte[0];
1975	+	}
1976	+	}
1977	+
1978	+	@SuppressWarnings("unchecked")
1979	+	void assertImmutable(Object o) {
1980	+	if (o instanceof Collection) {
1981	+	assertThrows(
1982	+	UnsupportedOperationException.class,
1983	+	() -> ((Collection) o).add(null));
1984	+	}
1985	+	}
1986	+
1987	+	@SuppressWarnings("unchecked")
1988	+	<T> T serialClone(T o) {
1989	+	T clone = null;
1990	+	try {
1991	+	ObjectInputStream ois = new ObjectInputStream
1992	+	(new ByteArrayInputStream(serialBytes(o)));
1993	+	clone = (T) ois.readObject();
1994	+	} catch (Throwable fail) {
1995	+	threadUnexpectedException(fail);
1996	+	}
1997	+	if (o == clone) assertImmutable(o);
1998	+	else assertSame(o.getClass(), clone.getClass());
1999	+	return clone;
2000	+	}
2001	+
2002	+	/**
2003	+	* A version of serialClone that leaves error handling (for
2004	+	* e.g. NotSerializableException) up to the caller.
2005	+	*/
2006	+	@SuppressWarnings("unchecked")
2007	+	<T> T serialClonePossiblyFailing(T o)
2008	+	throws ReflectiveOperationException, java.io.IOException {
2009	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
2010	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
2011	+	oos.writeObject(o);
2012	+	oos.flush();
2013	+	oos.close();
2014	+	ObjectInputStream ois = new ObjectInputStream
2015	+	(new ByteArrayInputStream(bos.toByteArray()));
2016	+	T clone = (T) ois.readObject();
2017	+	if (o == clone) assertImmutable(o);
2018	+	else assertSame(o.getClass(), clone.getClass());
2019	+	return clone;
2020	+	}
2021	+
2022	+	/**
2023	+	* If o implements Cloneable and has a public clone method,
2024	+	* returns a clone of o, else null.
2025	+	*/
2026	+	@SuppressWarnings("unchecked")
2027	+	<T> T cloneableClone(T o) {
2028	+	if (!(o instanceof Cloneable)) return null;
2029	+	final T clone;
2030	+	try {
2031	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
2032	+	} catch (NoSuchMethodException ok) {
2033	+	return null;
2034	+	} catch (ReflectiveOperationException unexpected) {
2035	+	throw new Error(unexpected);
2036	+	}
2037	+	assertNotSame(o, clone); // not 100% guaranteed by spec
2038	+	assertSame(o.getClass(), clone.getClass());
2039	+	return clone;
2040	+	}
2041	+
2042	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
2043	+	Action... throwingActions) {
2044	+	for (Action throwingAction : throwingActions) {
2045	+	boolean threw = false;
2046	+	try { throwingAction.run(); }
2047	+	catch (Throwable t) {
2048	+	threw = true;
2049	+	if (!expectedExceptionClass.isInstance(t))
2050	+	throw new AssertionError(
2051	+	"Expected " + expectedExceptionClass.getName() +
2052	+	", got " + t.getClass().getName(),
2053	+	t);
2054	+	}
2055	+	if (!threw)
2056	+	shouldThrow(expectedExceptionClass.getName());
2057	+	}
2058	+	}
2059	+
2060	+	public void assertIteratorExhausted(Iterator<?> it) {
2061	+	try {
2062	+	it.next();
2063	+	shouldThrow();
2064	+	} catch (NoSuchElementException success) {}
2065	+	assertFalse(it.hasNext());
2066	+	}
2067	+
2068	+	public <T> Callable<T> callableThrowing(final Exception ex) {
2069	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
2070	+	}
2071	+
2072	+	public Runnable runnableThrowing(final RuntimeException ex) {
2073	+	return new Runnable() { public void run() { throw ex; }};
2074	+	}
2075	+
2076	+	/** A reusable thread pool to be shared by tests. */
2077	+	static final ExecutorService cachedThreadPool =
2078	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
2079	+	1000L, MILLISECONDS,
2080	+	new SynchronousQueue<Runnable>());
2081	+
2082	+	static <T> void shuffle(T[] array) {
2083	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
2084	+	}
2085	+
2086	+	/**
2087	+	* Returns the same String as would be returned by {@link
2088	+	* Object#toString}, whether or not the given object's class
2089	+	* overrides toString().
2090	+	*
2091	+	* @see System#identityHashCode
2092	+	*/
2093	+	static String identityString(Object x) {
2094	+	return x.getClass().getName()
2095	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
2096	+	}
2097	+
2098	+	// --- Shared assertions for Executor tests ---
2099	+
2100	+	/**
2101	+	* Returns maximum number of tasks that can be submitted to given
2102	+	* pool (with bounded queue) before saturation (when submission
2103	+	* throws RejectedExecutionException).
2104	+	*/
2105	+	static final int saturatedSize(ThreadPoolExecutor pool) {
2106	+	BlockingQueue<Runnable> q = pool.getQueue();
2107	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
2108	+	}
2109	+
2110	+	@SuppressWarnings("FutureReturnValueIgnored")
2111	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
2112	+	try {
2113	+	e.execute((Runnable) null);
2114	+	shouldThrow();
2115	+	} catch (NullPointerException success) {}
2116	+
2117	+	if (! (e instanceof ExecutorService)) return;
2118	+	ExecutorService es = (ExecutorService) e;
2119	+	try {
2120	+	es.submit((Runnable) null);
2121	+	shouldThrow();
2122	+	} catch (NullPointerException success) {}
2123	+	try {
2124	+	es.submit((Runnable) null, Boolean.TRUE);
2125	+	shouldThrow();
2126	+	} catch (NullPointerException success) {}
2127	+	try {
2128	+	es.submit((Callable<?>) null);
2129	+	shouldThrow();
2130	+	} catch (NullPointerException success) {}
2131	+
2132	+	if (! (e instanceof ScheduledExecutorService)) return;
2133	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
2134	+	try {
2135	+	ses.schedule((Runnable) null,
2136	+	randomTimeout(), randomTimeUnit());
2137	+	shouldThrow();
2138	+	} catch (NullPointerException success) {}
2139	+	try {
2140	+	ses.schedule((Callable<?>) null,
2141	+	randomTimeout(), randomTimeUnit());
2142	+	shouldThrow();
2143	+	} catch (NullPointerException success) {}
2144	+	try {
2145	+	ses.scheduleAtFixedRate((Runnable) null,
2146	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2147	+	shouldThrow();
2148	+	} catch (NullPointerException success) {}
2149	+	try {
2150	+	ses.scheduleWithFixedDelay((Runnable) null,
2151	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2152	+	shouldThrow();
2153	+	} catch (NullPointerException success) {}
2154	+	}
2155	+
2156	+	void setRejectedExecutionHandler(
2157	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
2158	+	p.setRejectedExecutionHandler(handler);
2159	+	assertSame(handler, p.getRejectedExecutionHandler());
2160	+	}
2161	+
2162	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
2163	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
2164	+	final long savedTaskCount = p.getTaskCount();
2165	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
2166	+	final int savedQueueSize = p.getQueue().size();
2167	+	final boolean stock = (p.getClass().getClassLoader() == null);
2168	+
2169	+	Runnable r = () -> {};
2170	+	Callable<Boolean> c = () -> Boolean.TRUE;
2171	+
2172	+	class Recorder implements RejectedExecutionHandler {
2173	+	public volatile Runnable r = null;
2174	+	public volatile ThreadPoolExecutor p = null;
2175	+	public void reset() { r = null; p = null; }
2176	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2177	+	assertNull(this.r);
2178	+	assertNull(this.p);
2179	+	this.r = r;
2180	+	this.p = p;
2181	+	}
2182	+	}
2183	+
2184	+	// check custom handler is invoked exactly once per task
2185	+	Recorder recorder = new Recorder();
2186	+	setRejectedExecutionHandler(p, recorder);
2187	+	for (int i = 2; i--> 0; ) {
2188	+	recorder.reset();
2189	+	p.execute(r);
2190	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2191	+	assertSame(r, recorder.r);
2192	+	assertSame(p, recorder.p);
2193	+
2194	+	recorder.reset();
2195	+	assertFalse(p.submit(r).isDone());
2196	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2197	+	assertSame(p, recorder.p);
2198	+
2199	+	recorder.reset();
2200	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2201	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2202	+	assertSame(p, recorder.p);
2203	+
2204	+	recorder.reset();
2205	+	assertFalse(p.submit(c).isDone());
2206	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2207	+	assertSame(p, recorder.p);
2208	+
2209	+	if (p instanceof ScheduledExecutorService) {
2210	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2211	+	ScheduledFuture<?> future;
2212	+
2213	+	recorder.reset();
2214	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2215	+	assertFalse(future.isDone());
2216	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2217	+	assertSame(p, recorder.p);
2218	+
2219	+	recorder.reset();
2220	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2221	+	assertFalse(future.isDone());
2222	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2223	+	assertSame(p, recorder.p);
2224	+
2225	+	recorder.reset();
2226	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2227	+	assertFalse(future.isDone());
2228	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2229	+	assertSame(p, recorder.p);
2230	+
2231	+	recorder.reset();
2232	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2233	+	assertFalse(future.isDone());
2234	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2235	+	assertSame(p, recorder.p);
2236	+	}
2237	+	}
2238	+
2239	+	// Checking our custom handler above should be sufficient, but
2240	+	// we add some integration tests of standard handlers.
2241	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2242	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2243	+
2244	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2245	+	try {
2246	+	p.execute(setThread);
2247	+	shouldThrow();
2248	+	} catch (RejectedExecutionException success) {}
2249	+	assertNull(thread.get());
2250	+
2251	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2252	+	p.execute(setThread);
2253	+	assertNull(thread.get());
2254	+
2255	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2256	+	p.execute(setThread);
2257	+	if (p.isShutdown())
2258	+	assertNull(thread.get());
2259	+	else
2260	+	assertSame(Thread.currentThread(), thread.get());
2261	+
2262	+	setRejectedExecutionHandler(p, savedHandler);
2263	+
2264	+	// check that pool was not perturbed by handlers
2265	+	assertEquals(savedTaskCount, p.getTaskCount());
2266	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2267	+	assertEquals(savedQueueSize, p.getQueue().size());
2268	+	}
2269	+
2270	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2271	+	assertEquals(x, y);
2272	+	assertEquals(y, x);
2273	+	assertEquals(x.isEmpty(), y.isEmpty());
2274	+	assertEquals(x.size(), y.size());
2275	+	if (x instanceof List) {
2276	+	assertEquals(x.toString(), y.toString());
2277	+	}
2278	+	if (x instanceof List || x instanceof Set) {
2279	+	assertEquals(x.hashCode(), y.hashCode());
2280	+	}
2281	+	if (x instanceof List || x instanceof Deque) {
2282	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2283	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2284	+	y.toArray(new Object[0])));
2285	+	}
2286	+	}
2287	+
2288	+	/**
2289	+	* A weaker form of assertCollectionsEquals which does not insist
2290	+	* that the two collections satisfy Object#equals(Object), since
2291	+	* they may use identity semantics as Deques do.
2292	+	*/
2293	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2294	+	if (x instanceof List || x instanceof Set)
2295	+	assertCollectionsEquals(x, y);
2296	+	else {
2297	+	assertEquals(x.isEmpty(), y.isEmpty());
2298	+	assertEquals(x.size(), y.size());
2299	+	assertEquals(new HashSet<Object>(x), new HashSet<Object>(y));
2300	+	if (x instanceof Deque) {
2301	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2302	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2303	+	y.toArray(new Object[0])));
2304	+	}
2305	+	}
2306	+	}
2307		}

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