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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.49 by jsr166, Tue Jan 5 02:08:37 2010 UTC vs.
Revision 1.237 by jsr166, Wed Aug 23 05:33:00 2017 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.*;
12	<	import java.util.concurrent.*;
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 java.io.*;
45	<	import java.security.*;
44	>	import static java.util.concurrent.TimeUnit.MINUTES;
45	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
46	>
47	>	import java.io.ByteArrayInputStream;
48	>	import java.io.ByteArrayOutputStream;
49	>	import java.io.ObjectInputStream;
50	>	import java.io.ObjectOutputStream;
51	>	import java.lang.management.ManagementFactory;
52	>	import java.lang.management.ThreadInfo;
53	>	import java.lang.management.ThreadMXBean;
54	>	import java.lang.reflect.Constructor;
55	>	import java.lang.reflect.Method;
56	>	import java.lang.reflect.Modifier;
57	>	import java.security.CodeSource;
58	>	import java.security.Permission;
59	>	import java.security.PermissionCollection;
60	>	import java.security.Permissions;
61	>	import java.security.Policy;
62	>	import java.security.ProtectionDomain;
63	>	import java.security.SecurityPermission;
64	>	import java.util.ArrayList;
65	>	import java.util.Arrays;
66	>	import java.util.Collection;
67	>	import java.util.Collections;
68	>	import java.util.Date;
69	>	import java.util.Enumeration;
70	>	import java.util.Iterator;
71	>	import java.util.List;
72	>	import java.util.NoSuchElementException;
73	>	import java.util.PropertyPermission;
74	>	import java.util.concurrent.BlockingQueue;
75	>	import java.util.concurrent.Callable;
76	>	import java.util.concurrent.CountDownLatch;
77	>	import java.util.concurrent.CyclicBarrier;
78	>	import java.util.concurrent.ExecutionException;
79	>	import java.util.concurrent.Executor;
80	>	import java.util.concurrent.Executors;
81	>	import java.util.concurrent.ExecutorService;
82	>	import java.util.concurrent.ForkJoinPool;
83	>	import java.util.concurrent.Future;
84	>	import java.util.concurrent.FutureTask;
85	>	import java.util.concurrent.RecursiveAction;
86	>	import java.util.concurrent.RecursiveTask;
87	>	import java.util.concurrent.RejectedExecutionException;
88	>	import java.util.concurrent.RejectedExecutionHandler;
89	>	import java.util.concurrent.Semaphore;
90	>	import java.util.concurrent.ScheduledExecutorService;
91	>	import java.util.concurrent.ScheduledFuture;
92	>	import java.util.concurrent.SynchronousQueue;
93	>	import java.util.concurrent.ThreadFactory;
94	>	import java.util.concurrent.ThreadLocalRandom;
95	>	import java.util.concurrent.ThreadPoolExecutor;
96	>	import java.util.concurrent.TimeUnit;
97	>	import java.util.concurrent.TimeoutException;
98	>	import java.util.concurrent.atomic.AtomicBoolean;
99	>	import java.util.concurrent.atomic.AtomicReference;
100	>	import java.util.regex.Pattern;
101	>
102	>	import junit.framework.AssertionFailedError;
103	>	import junit.framework.Test;
104	>	import junit.framework.TestCase;
105	>	import junit.framework.TestResult;
106	>	import junit.framework.TestSuite;
107
108		/**
109		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 115 | import java.security.*;
115		*
116		* <ol>
117		*
118	<	* <li> All assertions in code running in generated threads must use
118	>	* <li>All assertions in code running in generated threads must use
119		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
120		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
121	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
121	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
122		* particularly recommended) for other code to use these forms too.
123		* Only the most typically used JUnit assertion methods are defined
124	<	* this way, but enough to live with.</li>
124	>	* this way, but enough to live with.
125		*
126	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
127	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
126	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
127	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
128		* them. These methods are used to clear and check for thread
129	<	* assertion failures.</li>
129	>	* assertion failures.
130		*
131	<	* <li>All delays and timeouts must use one of the constants <tt>
132	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
133	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
131	>	* <li>All delays and timeouts must use one of the constants {@code
132	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
133	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
134		* discriminable from zero time, and always allows enough time for the
135		* small amounts of computation (creating a thread, calling a few
136		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
137		* is always discriminable as larger than SHORT and smaller than
138		* MEDIUM.  And so on. These constants are set to conservative values,
139		* but even so, if there is ever any doubt, they can all be increased
140	<	* in one spot to rerun tests on slower platforms.</li>
140	>	* in one spot to rerun tests on slower platforms.
141		*
142	<	* <li> All threads generated must be joined inside each test case
143	<	* method (or <tt>fail</tt> to do so) before returning from the
144	<	* method. The <tt> joinPool</tt> method can be used to do this when
145	<	* using Executors.</li>
142	>	* <li>All threads generated must be joined inside each test case
143	>	* method (or {@code fail} to do so) before returning from the
144	>	* method. The {@code joinPool} method can be used to do this when
145	>	* using Executors.
146		*
147		* </ol>
148		*
149	<	* <p> <b>Other notes</b>
149	>	* <p><b>Other notes</b>
150		* <ul>
151		*
152	<	* <li> Usually, there is one testcase method per JSR166 method
152	>	* <li>Usually, there is one testcase method per JSR166 method
153		* covering "normal" operation, and then as many exception-testing
154		* methods as there are exceptions the method can throw. Sometimes
155		* there are multiple tests per JSR166 method when the different
156		* "normal" behaviors differ significantly. And sometimes testcases
157	<	* cover multiple methods when they cannot be tested in
66	<	* isolation.</li>
157	>	* cover multiple methods when they cannot be tested in isolation.
158		*
159	<	* <li> The documentation style for testcases is to provide as javadoc
159	>	* <li>The documentation style for testcases is to provide as javadoc
160		* a simple sentence or two describing the property that the testcase
161		* method purports to test. The javadocs do not say anything about how
162	<	* the property is tested. To find out, read the code.</li>
162	>	* the property is tested. To find out, read the code.
163		*
164	<	* <li> These tests are "conformance tests", and do not attempt to
164	>	* <li>These tests are "conformance tests", and do not attempt to
165		* test throughput, latency, scalability or other performance factors
166		* (see the separate "jtreg" tests for a set intended to check these
167		* for the most central aspects of functionality.) So, most tests use
168		* the smallest sensible numbers of threads, collection sizes, etc
169	<	* needed to check basic conformance.</li>
169	>	* needed to check basic conformance.
170		*
171		* <li>The test classes currently do not declare inclusion in
172		* any particular package to simplify things for people integrating
173	<	* them in TCK test suites.</li>
173	>	* them in TCK test suites.
174		*
175	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
176	<	* runs all JSR166 unit tests.</li>
175	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
176	>	* runs all JSR166 unit tests.
177		*
178		* </ul>
179		*/
#	Line 90 | Line 181 | public class JSR166TestCase extends Test
181		private static final boolean useSecurityManager =
182		Boolean.getBoolean("jsr166.useSecurityManager");
183
184	+	protected static final boolean expensiveTests =
185	+	Boolean.getBoolean("jsr166.expensiveTests");
186	+
187	+	/**
188	+	* If true, also run tests that are not part of the official tck
189	+	* because they test unspecified implementation details.
190	+	*/
191	+	protected static final boolean testImplementationDetails =
192	+	Boolean.getBoolean("jsr166.testImplementationDetails");
193	+
194	+	/**
195	+	* If true, report on stdout all "slow" tests, that is, ones that
196	+	* take more than profileThreshold milliseconds to execute.
197	+	*/
198	+	private static final boolean profileTests =
199	+	Boolean.getBoolean("jsr166.profileTests");
200	+
201	+	/**
202	+	* The number of milliseconds that tests are permitted for
203	+	* execution without being reported, when profileTests is set.
204	+	*/
205	+	private static final long profileThreshold =
206	+	Long.getLong("jsr166.profileThreshold", 100);
207	+
208	+	/**
209	+	* The number of repetitions per test (for tickling rare bugs).
210	+	*/
211	+	private static final int runsPerTest =
212	+	Integer.getInteger("jsr166.runsPerTest", 1);
213	+
214	+	/**
215	+	* The number of repetitions of the test suite (for finding leaks?).
216	+	*/
217	+	private static final int suiteRuns =
218	+	Integer.getInteger("jsr166.suiteRuns", 1);
219	+
220		/**
221	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
221	>	* Returns the value of the system property, or NaN if not defined.
222	>	*/
223	>	private static float systemPropertyValue(String name) {
224	>	String floatString = System.getProperty(name);
225	>	if (floatString == null)
226	>	return Float.NaN;
227	>	try {
228	>	return Float.parseFloat(floatString);
229	>	} catch (NumberFormatException ex) {
230	>	throw new IllegalArgumentException(
231	>	String.format("Bad float value in system property %s=%s",
232	>	name, floatString));
233	>	}
234	>	}
235	>
236	>	/**
237	>	* The scaling factor to apply to standard delays used in tests.
238	>	* May be initialized from any of:
239	>	* - the "jsr166.delay.factor" system property
240	>	* - the "test.timeout.factor" system property (as used by jtreg)
241	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
242	>	* - hard-coded fuzz factor when using a known slowpoke VM
243	>	*/
244	>	private static final float delayFactor = delayFactor();
245	>
246	>	private static float delayFactor() {
247	>	float x;
248	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
249	>	return x;
250	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
251	>	return x;
252	>	String prop = System.getProperty("java.vm.version");
253	>	if (prop != null && prop.matches(".*debug.*"))
254	>	return 4.0f; // How much slower is fastdebug than product?!
255	>	return 1.0f;
256	>	}
257	>
258	>	public JSR166TestCase() { super(); }
259	>	public JSR166TestCase(String name) { super(name); }
260	>
261	>	/**
262	>	* A filter for tests to run, matching strings of the form
263	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
264	>	* Usefully combined with jsr166.runsPerTest.
265	>	*/
266	>	private static final Pattern methodFilter = methodFilter();
267	>
268	>	private static Pattern methodFilter() {
269	>	String regex = System.getProperty("jsr166.methodFilter");
270	>	return (regex == null) ? null : Pattern.compile(regex);
271	>	}
272	>
273	>	// Instrumentation to debug very rare, but very annoying hung test runs.
274	>	static volatile TestCase currentTestCase;
275	>	// static volatile int currentRun = 0;
276	>	static {
277	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
278	>	// Avoid spurious reports with enormous runsPerTest.
279	>	// A single test case run should never take more than 1 second.
280	>	// But let's cap it at the high end too ...
281	>	final int timeoutMinutes =
282	>	Math.min(15, Math.max(runsPerTest / 60, 1));
283	>	for (TestCase lastTestCase = currentTestCase;;) {
284	>	try { MINUTES.sleep(timeoutMinutes); }
285	>	catch (InterruptedException unexpected) { break; }
286	>	if (lastTestCase == currentTestCase) {
287	>	System.err.printf(
288	>	"Looks like we're stuck running test: %s%n",
289	>	lastTestCase);
290	>	//                     System.err.printf(
291	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
292	>	//                         lastTestCase, currentRun, runsPerTest);
293	>	//                     System.err.println("availableProcessors=" +
294	>	//                         Runtime.getRuntime().availableProcessors());
295	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
296	>	dumpTestThreads();
297	>	// one stack dump is probably enough; more would be spam
298	>	break;
299	>	}
300	>	lastTestCase = currentTestCase;
301	>	}}};
302	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
303	>	thread.setDaemon(true);
304	>	thread.start();
305	>	}
306	>
307	>	//     public static String cpuModel() {
308	>	//         try {
309	>	//             java.util.regex.Matcher matcher
310	>	//               = Pattern.compile("model name\\s*: (.*)")
311	>	//                 .matcher(new String(
312	>	//                     java.nio.file.Files.readAllBytes(
313	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
314	>	//             matcher.find();
315	>	//             return matcher.group(1);
316	>	//         } catch (Exception ex) { return null; }
317	>	//     }
318	>
319	>	public void runBare() throws Throwable {
320	>	currentTestCase = this;
321	>	if (methodFilter == null
322	>	|| methodFilter.matcher(toString()).find())
323	>	super.runBare();
324	>	}
325	>
326	>	protected void runTest() throws Throwable {
327	>	for (int i = 0; i < runsPerTest; i++) {
328	>	// currentRun = i;
329	>	if (profileTests)
330	>	runTestProfiled();
331	>	else
332	>	super.runTest();
333	>	}
334	>	}
335	>
336	>	protected void runTestProfiled() throws Throwable {
337	>	for (int i = 0; i < 2; i++) {
338	>	long startTime = System.nanoTime();
339	>	super.runTest();
340	>	long elapsedMillis = millisElapsedSince(startTime);
341	>	if (elapsedMillis < profileThreshold)
342	>	break;
343	>	// Never report first run of any test; treat it as a
344	>	// warmup run, notably to trigger all needed classloading,
345	>	if (i > 0)
346	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
347	>	}
348	>	}
349	>
350	>	/**
351	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
352		*/
353		public static void main(String[] args) {
354	+	main(suite(), args);
355	+	}
356	+
357	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
358	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
359	+	long runTime;
360	+	public void startTest(Test test) {}
361	+	protected void printHeader(long runTime) {
362	+	this.runTime = runTime; // defer printing for later
363	+	}
364	+	protected void printFooter(TestResult result) {
365	+	if (result.wasSuccessful()) {
366	+	getWriter().println("OK (" + result.runCount() + " tests)"
367	+	+ "  Time: " + elapsedTimeAsString(runTime));
368	+	} else {
369	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
370	+	super.printFooter(result);
371	+	}
372	+	}
373	+	}
374	+
375	+	/**
376	+	* Returns a TestRunner that doesn't bother with unnecessary
377	+	* fluff, like printing a "." for each test case.
378	+	*/
379	+	static junit.textui.TestRunner newPithyTestRunner() {
380	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
381	+	runner.setPrinter(new PithyResultPrinter(System.out));
382	+	return runner;
383	+	}
384	+
385	+	/**
386	+	* Runs all unit tests in the given test suite.
387	+	* Actual behavior influenced by jsr166.* system properties.
388	+	*/
389	+	static void main(Test suite, String[] args) {
390		if (useSecurityManager) {
391		System.err.println("Setting a permissive security manager");
392		Policy.setPolicy(permissivePolicy());
393		System.setSecurityManager(new SecurityManager());
394		}
395	<	int iters = 1;
396	<	if (args.length > 0)
397	<	iters = Integer.parseInt(args[0]);
398	<	Test s = suite();
106	<	for (int i = 0; i < iters; ++i) {
107	<	junit.textui.TestRunner.run(s);
395	>	for (int i = 0; i < suiteRuns; i++) {
396	>	TestResult result = newPithyTestRunner().doRun(suite);
397	>	if (!result.wasSuccessful())
398	>	System.exit(1);
399		System.gc();
400		System.runFinalization();
401		}
402	<	System.exit(0);
402	>	}
403	>
404	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
405	>	TestSuite suite = new TestSuite();
406	>	for (Object suiteOrClass : suiteOrClasses) {
407	>	if (suiteOrClass instanceof TestSuite)
408	>	suite.addTest((TestSuite) suiteOrClass);
409	>	else if (suiteOrClass instanceof Class)
410	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
411	>	else
412	>	throw new ClassCastException("not a test suite or class");
413	>	}
414	>	return suite;
415	>	}
416	>
417	>	public static void addNamedTestClasses(TestSuite suite,
418	>	String... testClassNames) {
419	>	for (String testClassName : testClassNames) {
420	>	try {
421	>	Class<?> testClass = Class.forName(testClassName);
422	>	Method m = testClass.getDeclaredMethod("suite",
423	>	new Class<?>[0]);
424	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
425	>	} catch (Exception e) {
426	>	throw new Error("Missing test class", e);
427	>	}
428	>	}
429	>	}
430	>
431	>	public static final double JAVA_CLASS_VERSION;
432	>	public static final String JAVA_SPECIFICATION_VERSION;
433	>	static {
434	>	try {
435	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
436	>	new java.security.PrivilegedAction<Double>() {
437	>	public Double run() {
438	>	return Double.valueOf(System.getProperty("java.class.version"));}});
439	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
440	>	new java.security.PrivilegedAction<String>() {
441	>	public String run() {
442	>	return System.getProperty("java.specification.version");}});
443	>	} catch (Throwable t) {
444	>	throw new Error(t);
445	>	}
446	>	}
447	>
448	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
449	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
450	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
451	>	public static boolean atLeastJava9() {
452	>	return JAVA_CLASS_VERSION >= 53.0
453	>	// As of 2015-09, java9 still uses 52.0 class file version
454	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
455	>	}
456	>	public static boolean atLeastJava10() {
457	>	return JAVA_CLASS_VERSION >= 54.0
458	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
459		}
460
461		/**
462	<	* Collects all JSR166 unit tests as one suite
462	>	* Collects all JSR166 unit tests as one suite.
463		*/
464		public static Test suite() {
465	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
466	<
467	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
468	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
469	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
470	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
471	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
472	<	suite.addTest(new TestSuite(PhaserTest.class));
473	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
474	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
475	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
476	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
477	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
478	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
479	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
480	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
481	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
482	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
483	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
484	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
485	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
486	<	suite.addTest(new TestSuite(AtomicLongTest.class));
487	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
488	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
489	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
490	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
491	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
492	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
493	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
494	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
495	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
496	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
497	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
498	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
499	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
500	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
501	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
502	<	suite.addTest(new TestSuite(DelayQueueTest.class));
503	<	suite.addTest(new TestSuite(EntryTest.class));
504	<	suite.addTest(new TestSuite(ExchangerTest.class));
505	<	suite.addTest(new TestSuite(ExecutorsTest.class));
506	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
507	<	suite.addTest(new TestSuite(FutureTaskTest.class));
508	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
509	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
510	<	suite.addTest(new TestSuite(LinkedListTest.class));
511	<	suite.addTest(new TestSuite(LockSupportTest.class));
512	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
513	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
514	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
515	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
516	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
517	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
518	<	suite.addTest(new TestSuite(SemaphoreTest.class));
519	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
520	<	suite.addTest(new TestSuite(SystemTest.class));
521	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
522	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
523	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
524	<	suite.addTest(new TestSuite(ThreadTest.class));
525	<	suite.addTest(new TestSuite(TimeUnitTest.class));
526	<	suite.addTest(new TestSuite(TreeMapTest.class));
527	<	suite.addTest(new TestSuite(TreeSetTest.class));
528	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
529	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
465	>	// Java7+ test classes
466	>	TestSuite suite = newTestSuite(
467	>	ForkJoinPoolTest.suite(),
468	>	ForkJoinTaskTest.suite(),
469	>	RecursiveActionTest.suite(),
470	>	RecursiveTaskTest.suite(),
471	>	LinkedTransferQueueTest.suite(),
472	>	PhaserTest.suite(),
473	>	ThreadLocalRandomTest.suite(),
474	>	AbstractExecutorServiceTest.suite(),
475	>	AbstractQueueTest.suite(),
476	>	AbstractQueuedSynchronizerTest.suite(),
477	>	AbstractQueuedLongSynchronizerTest.suite(),
478	>	ArrayBlockingQueueTest.suite(),
479	>	ArrayDequeTest.suite(),
480	>	ArrayListTest.suite(),
481	>	AtomicBooleanTest.suite(),
482	>	AtomicIntegerArrayTest.suite(),
483	>	AtomicIntegerFieldUpdaterTest.suite(),
484	>	AtomicIntegerTest.suite(),
485	>	AtomicLongArrayTest.suite(),
486	>	AtomicLongFieldUpdaterTest.suite(),
487	>	AtomicLongTest.suite(),
488	>	AtomicMarkableReferenceTest.suite(),
489	>	AtomicReferenceArrayTest.suite(),
490	>	AtomicReferenceFieldUpdaterTest.suite(),
491	>	AtomicReferenceTest.suite(),
492	>	AtomicStampedReferenceTest.suite(),
493	>	ConcurrentHashMapTest.suite(),
494	>	ConcurrentLinkedDequeTest.suite(),
495	>	ConcurrentLinkedQueueTest.suite(),
496	>	ConcurrentSkipListMapTest.suite(),
497	>	ConcurrentSkipListSubMapTest.suite(),
498	>	ConcurrentSkipListSetTest.suite(),
499	>	ConcurrentSkipListSubSetTest.suite(),
500	>	CopyOnWriteArrayListTest.suite(),
501	>	CopyOnWriteArraySetTest.suite(),
502	>	CountDownLatchTest.suite(),
503	>	CountedCompleterTest.suite(),
504	>	CyclicBarrierTest.suite(),
505	>	DelayQueueTest.suite(),
506	>	EntryTest.suite(),
507	>	ExchangerTest.suite(),
508	>	ExecutorsTest.suite(),
509	>	ExecutorCompletionServiceTest.suite(),
510	>	FutureTaskTest.suite(),
511	>	LinkedBlockingDequeTest.suite(),
512	>	LinkedBlockingQueueTest.suite(),
513	>	LinkedListTest.suite(),
514	>	LockSupportTest.suite(),
515	>	PriorityBlockingQueueTest.suite(),
516	>	PriorityQueueTest.suite(),
517	>	ReentrantLockTest.suite(),
518	>	ReentrantReadWriteLockTest.suite(),
519	>	ScheduledExecutorTest.suite(),
520	>	ScheduledExecutorSubclassTest.suite(),
521	>	SemaphoreTest.suite(),
522	>	SynchronousQueueTest.suite(),
523	>	SystemTest.suite(),
524	>	ThreadLocalTest.suite(),
525	>	ThreadPoolExecutorTest.suite(),
526	>	ThreadPoolExecutorSubclassTest.suite(),
527	>	ThreadTest.suite(),
528	>	TimeUnitTest.suite(),
529	>	TreeMapTest.suite(),
530	>	TreeSetTest.suite(),
531	>	TreeSubMapTest.suite(),
532	>	TreeSubSetTest.suite(),
533	>	VectorTest.suite());
534	>
535	>	// Java8+ test classes
536	>	if (atLeastJava8()) {
537	>	String[] java8TestClassNames = {
538	>	"ArrayDeque8Test",
539	>	"Atomic8Test",
540	>	"CompletableFutureTest",
541	>	"ConcurrentHashMap8Test",
542	>	"CountedCompleter8Test",
543	>	"DoubleAccumulatorTest",
544	>	"DoubleAdderTest",
545	>	"ForkJoinPool8Test",
546	>	"ForkJoinTask8Test",
547	>	"HashMapTest",
548	>	"LinkedBlockingDeque8Test",
549	>	"LinkedBlockingQueue8Test",
550	>	"LongAccumulatorTest",
551	>	"LongAdderTest",
552	>	"SplittableRandomTest",
553	>	"StampedLockTest",
554	>	"SubmissionPublisherTest",
555	>	"ThreadLocalRandom8Test",
556	>	"TimeUnit8Test",
557	>	};
558	>	addNamedTestClasses(suite, java8TestClassNames);
559	>	}
560	>
561	>	// Java9+ test classes
562	>	if (atLeastJava9()) {
563	>	String[] java9TestClassNames = {
564	>	"AtomicBoolean9Test",
565	>	"AtomicInteger9Test",
566	>	"AtomicIntegerArray9Test",
567	>	"AtomicLong9Test",
568	>	"AtomicLongArray9Test",
569	>	"AtomicReference9Test",
570	>	"AtomicReferenceArray9Test",
571	>	"ExecutorCompletionService9Test",
572	>	"ForkJoinPool9Test",
573	>	};
574	>	addNamedTestClasses(suite, java9TestClassNames);
575	>	}
576
577		return suite;
578		}
579
580	+	/** Returns list of junit-style test method names in given class. */
581	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
582	+	Method[] methods = testClass.getDeclaredMethods();
583	+	ArrayList<String> names = new ArrayList<>(methods.length);
584	+	for (Method method : methods) {
585	+	if (method.getName().startsWith("test")
586	+	&& Modifier.isPublic(method.getModifiers())
587	+	// method.getParameterCount() requires jdk8+
588	+	&& method.getParameterTypes().length == 0) {
589	+	names.add(method.getName());
590	+	}
591	+	}
592	+	return names;
593	+	}
594	+
595	+	/**
596	+	* Returns junit-style testSuite for the given test class, but
597	+	* parameterized by passing extra data to each test.
598	+	*/
599	+	public static <ExtraData> Test parameterizedTestSuite
600	+	(Class<? extends JSR166TestCase> testClass,
601	+	Class<ExtraData> dataClass,
602	+	ExtraData data) {
603	+	try {
604	+	TestSuite suite = new TestSuite();
605	+	Constructor c =
606	+	testClass.getDeclaredConstructor(dataClass, String.class);
607	+	for (String methodName : testMethodNames(testClass))
608	+	suite.addTest((Test) c.newInstance(data, methodName));
609	+	return suite;
610	+	} catch (Exception e) {
611	+	throw new Error(e);
612	+	}
613	+	}
614	+
615	+	/**
616	+	* Returns junit-style testSuite for the jdk8 extension of the
617	+	* given test class, but parameterized by passing extra data to
618	+	* each test.  Uses reflection to allow compilation in jdk7.
619	+	*/
620	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
621	+	(Class<? extends JSR166TestCase> testClass,
622	+	Class<ExtraData> dataClass,
623	+	ExtraData data) {
624	+	if (atLeastJava8()) {
625	+	String name = testClass.getName();
626	+	String name8 = name.replaceAll("Test$", "8Test");
627	+	if (name.equals(name8)) throw new Error(name);
628	+	try {
629	+	return (Test)
630	+	Class.forName(name8)
631	+	.getMethod("testSuite", new Class[] { dataClass })
632	+	.invoke(null, data);
633	+	} catch (Exception e) {
634	+	throw new Error(e);
635	+	}
636	+	} else {
637	+	return new TestSuite();
638	+	}
639	+	}
640	+
641	+	// Delays for timing-dependent tests, in milliseconds.
642
643		public static long SHORT_DELAY_MS;
644		public static long SMALL_DELAY_MS;
645		public static long MEDIUM_DELAY_MS;
646		public static long LONG_DELAY_MS;
647
648	+	private static final long RANDOM_TIMEOUT;
649	+	private static final long RANDOM_EXPIRED_TIMEOUT;
650	+	private static final TimeUnit RANDOM_TIMEUNIT;
651	+	static {
652	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
653	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
654	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
655	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
656	+	TimeUnit[] timeUnits = TimeUnit.values();
657	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
658	+	}
659	+
660	+	/**
661	+	* Returns a timeout for use when any value at all will do.
662	+	*/
663	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
664	+
665	+	/**
666	+	* Returns a timeout that means "no waiting", i.e. not positive.
667	+	*/
668	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
669	+
670	+	/**
671	+	* Returns a random non-null TimeUnit.
672	+	*/
673	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
674
675		/**
676	<	* Returns the shortest timed delay. This could
677	<	* be reimplemented to use for example a Property.
676	>	* Returns the shortest timed delay. This can be scaled up for
677	>	* slow machines using the jsr166.delay.factor system property,
678	>	* or via jtreg's -timeoutFactor: flag.
679	>	* http://openjdk.java.net/jtreg/command-help.html
680		*/
681		protected long getShortDelay() {
682	<	return 50;
682	>	return (long) (50 * delayFactor);
683		}
684
202	–
685		/**
686		* Sets delays as multiples of SHORT_DELAY.
687		*/
688		protected void setDelays() {
689		SHORT_DELAY_MS = getShortDelay();
690	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
690	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
691		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
692	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
692	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
693	>	}
694	>
695	>	private static final long TIMEOUT_DELAY_MS
696	>	= (long) (12.0 * Math.cbrt(delayFactor));
697	>
698	>	/**
699	>	* Returns a timeout in milliseconds to be used in tests that verify
700	>	* that operations block or time out.  We want this to be longer
701	>	* than the OS scheduling quantum, but not too long, so don't scale
702	>	* linearly with delayFactor; we use "crazy" cube root instead.
703	>	*/
704	>	static long timeoutMillis() {
705	>	return TIMEOUT_DELAY_MS;
706		}
707
708		/**
709	<	* Flag set true if any threadAssert methods fail
709	>	* Returns a new Date instance representing a time at least
710	>	* delayMillis milliseconds in the future.
711		*/
712	<	volatile boolean threadFailed;
712	>	Date delayedDate(long delayMillis) {
713	>	// Add 1 because currentTimeMillis is known to round into the past.
714	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
715	>	}
716
717		/**
718	<	* Initializes test to indicate that no thread assertions have failed
718	>	* The first exception encountered if any threadAssertXXX method fails.
719		*/
720	+	private final AtomicReference<Throwable> threadFailure
721	+	= new AtomicReference<>(null);
722	+
723	+	/**
724	+	* Records an exception so that it can be rethrown later in the test
725	+	* harness thread, triggering a test case failure.  Only the first
726	+	* failure is recorded; subsequent calls to this method from within
727	+	* the same test have no effect.
728	+	*/
729	+	public void threadRecordFailure(Throwable t) {
730	+	System.err.println(t);
731	+	dumpTestThreads();
732	+	threadFailure.compareAndSet(null, t);
733	+	}
734	+
735		public void setUp() {
736		setDelays();
737	<	threadFailed = false;
737	>	}
738	>
739	>	void tearDownFail(String format, Object... args) {
740	>	String msg = toString() + ": " + String.format(format, args);
741	>	System.err.println(msg);
742	>	dumpTestThreads();
743	>	throw new AssertionFailedError(msg);
744	>	}
745	>
746	>	/**
747	>	* Extra checks that get done for all test cases.
748	>	*
749	>	* Triggers test case failure if any thread assertions have failed,
750	>	* by rethrowing, in the test harness thread, any exception recorded
751	>	* earlier by threadRecordFailure.
752	>	*
753	>	* Triggers test case failure if interrupt status is set in the main thread.
754	>	*/
755	>	public void tearDown() throws Exception {
756	>	Throwable t = threadFailure.getAndSet(null);
757	>	if (t != null) {
758	>	if (t instanceof Error)
759	>	throw (Error) t;
760	>	else if (t instanceof RuntimeException)
761	>	throw (RuntimeException) t;
762	>	else if (t instanceof Exception)
763	>	throw (Exception) t;
764	>	else {
765	>	AssertionFailedError afe =
766	>	new AssertionFailedError(t.toString());
767	>	afe.initCause(t);
768	>	throw afe;
769	>	}
770	>	}
771	>
772	>	if (Thread.interrupted())
773	>	tearDownFail("interrupt status set in main thread");
774	>
775	>	checkForkJoinPoolThreadLeaks();
776		}
777
778		/**
779	<	* Triggers test case failure if any thread assertions have failed
779	>	* Finds missing PoolCleaners
780		*/
781	<	public void tearDown() {
782	<	assertFalse(threadFailed);
781	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
782	>	Thread[] survivors = new Thread[7];
783	>	int count = Thread.enumerate(survivors);
784	>	for (int i = 0; i < count; i++) {
785	>	Thread thread = survivors[i];
786	>	String name = thread.getName();
787	>	if (name.startsWith("ForkJoinPool-")) {
788	>	// give thread some time to terminate
789	>	thread.join(LONG_DELAY_MS);
790	>	if (thread.isAlive())
791	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
792	>	thread);
793	>	}
794	>	}
795	>
796	>	if (!ForkJoinPool.commonPool()
797	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
798	>	tearDownFail("ForkJoin common pool thread stuck");
799		}
800
801		/**
802	<	* Fail, also setting status to indicate current testcase should fail
802	>	* Just like fail(reason), but additionally recording (using
803	>	* threadRecordFailure) any AssertionFailedError thrown, so that
804	>	* the current testcase will fail.
805		*/
806		public void threadFail(String reason) {
807	<	threadFailed = true;
808	<	fail(reason);
807	>	try {
808	>	fail(reason);
809	>	} catch (AssertionFailedError t) {
810	>	threadRecordFailure(t);
811	>	throw t;
812	>	}
813		}
814
815		/**
816	<	* If expression not true, set status to indicate current testcase
817	<	* should fail
816	>	* Just like assertTrue(b), but additionally recording (using
817	>	* threadRecordFailure) any AssertionFailedError thrown, so that
818	>	* the current testcase will fail.
819		*/
820		public void threadAssertTrue(boolean b) {
821	<	if (!b) {
247	<	threadFailed = true;
821	>	try {
822		assertTrue(b);
823	+	} catch (AssertionFailedError t) {
824	+	threadRecordFailure(t);
825	+	throw t;
826		}
827		}
828
829		/**
830	<	* If expression not false, set status to indicate current testcase
831	<	* should fail
830	>	* Just like assertFalse(b), but additionally recording (using
831	>	* threadRecordFailure) any AssertionFailedError thrown, so that
832	>	* the current testcase will fail.
833		*/
834		public void threadAssertFalse(boolean b) {
835	<	if (b) {
258	<	threadFailed = true;
835	>	try {
836		assertFalse(b);
837	+	} catch (AssertionFailedError t) {
838	+	threadRecordFailure(t);
839	+	throw t;
840		}
841		}
842
843		/**
844	<	* If argument not null, set status to indicate current testcase
845	<	* should fail
844	>	* Just like assertNull(x), but additionally recording (using
845	>	* threadRecordFailure) any AssertionFailedError thrown, so that
846	>	* the current testcase will fail.
847		*/
848		public void threadAssertNull(Object x) {
849	<	if (x != null) {
269	<	threadFailed = true;
849	>	try {
850		assertNull(x);
851	+	} catch (AssertionFailedError t) {
852	+	threadRecordFailure(t);
853	+	throw t;
854		}
855		}
856
857		/**
858	<	* If arguments not equal, set status to indicate current testcase
859	<	* should fail
858	>	* Just like assertEquals(x, y), but additionally recording (using
859	>	* threadRecordFailure) any AssertionFailedError thrown, so that
860	>	* the current testcase will fail.
861		*/
862		public void threadAssertEquals(long x, long y) {
863	<	if (x != y) {
280	<	threadFailed = true;
863	>	try {
864		assertEquals(x, y);
865	+	} catch (AssertionFailedError t) {
866	+	threadRecordFailure(t);
867	+	throw t;
868		}
869		}
870
871		/**
872	<	* If arguments not equal, set status to indicate current testcase
873	<	* should fail
872	>	* Just like assertEquals(x, y), but additionally recording (using
873	>	* threadRecordFailure) any AssertionFailedError thrown, so that
874	>	* the current testcase will fail.
875		*/
876		public void threadAssertEquals(Object x, Object y) {
877	<	if (x != y && (x == null || !x.equals(y))) {
291	<	threadFailed = true;
877	>	try {
878		assertEquals(x, y);
879	+	} catch (AssertionFailedError fail) {
880	+	threadRecordFailure(fail);
881	+	throw fail;
882	+	} catch (Throwable fail) {
883	+	threadUnexpectedException(fail);
884		}
885		}
886
887		/**
888	<	* threadFail with message "should throw exception"
888	>	* Just like assertSame(x, y), but additionally recording (using
889	>	* threadRecordFailure) any AssertionFailedError thrown, so that
890	>	* the current testcase will fail.
891	>	*/
892	>	public void threadAssertSame(Object x, Object y) {
893	>	try {
894	>	assertSame(x, y);
895	>	} catch (AssertionFailedError fail) {
896	>	threadRecordFailure(fail);
897	>	throw fail;
898	>	}
899	>	}
900	>
901	>	/**
902	>	* Calls threadFail with message "should throw exception".
903		*/
904		public void threadShouldThrow() {
905	<	threadFailed = true;
301	<	fail("should throw exception");
905	>	threadFail("should throw exception");
906		}
907
908		/**
909	<	* threadFail with message "should throw" + exceptionName
909	>	* Calls threadFail with message "should throw" + exceptionName.
910		*/
911		public void threadShouldThrow(String exceptionName) {
912	<	threadFailed = true;
913	<	fail("should throw " + exceptionName);
912	>	threadFail("should throw " + exceptionName);
913	>	}
914	>
915	>	/**
916	>	* Records the given exception using {@link #threadRecordFailure},
917	>	* then rethrows the exception, wrapping it in an
918	>	* AssertionFailedError if necessary.
919	>	*/
920	>	public void threadUnexpectedException(Throwable t) {
921	>	threadRecordFailure(t);
922	>	t.printStackTrace();
923	>	if (t instanceof RuntimeException)
924	>	throw (RuntimeException) t;
925	>	else if (t instanceof Error)
926	>	throw (Error) t;
927	>	else {
928	>	AssertionFailedError afe =
929	>	new AssertionFailedError("unexpected exception: " + t);
930	>	afe.initCause(t);
931	>	throw afe;
932	>	}
933		}
934
935		/**
936	<	* threadFail with message "Unexpected exception"
936	>	* Delays, via Thread.sleep, for the given millisecond delay, but
937	>	* if the sleep is shorter than specified, may re-sleep or yield
938	>	* until time elapses.  Ensures that the given time, as measured
939	>	* by System.nanoTime(), has elapsed.
940		*/
941	<	public void threadUnexpectedException() {
942	<	threadFailed = true;
943	<	fail("Unexpected exception");
941	>	static void delay(long millis) throws InterruptedException {
942	>	long nanos = millis * (1000 * 1000);
943	>	final long wakeupTime = System.nanoTime() + nanos;
944	>	do {
945	>	if (millis > 0L)
946	>	Thread.sleep(millis);
947	>	else // too short to sleep
948	>	Thread.yield();
949	>	nanos = wakeupTime - System.nanoTime();
950	>	millis = nanos / (1000 * 1000);
951	>	} while (nanos >= 0L);
952		}
953
954		/**
955	<	* threadFail with message "Unexpected exception", with argument
955	>	* Allows use of try-with-resources with per-test thread pools.
956		*/
957	<	public void threadUnexpectedException(Throwable ex) {
958	<	threadFailed = true;
959	<	ex.printStackTrace();
960	<	fail("Unexpected exception: " + ex);
957	>	class PoolCleaner implements AutoCloseable {
958	>	private final ExecutorService pool;
959	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
960	>	public void close() { joinPool(pool); }
961		}
962
963		/**
964	<	* Wait out termination of a thread pool or fail doing so
964	>	* An extension of PoolCleaner that has an action to release the pool.
965		*/
966	<	public void joinPool(ExecutorService exec) {
966	>	class PoolCleanerWithReleaser extends PoolCleaner {
967	>	private final Runnable releaser;
968	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
969	>	super(pool);
970	>	this.releaser = releaser;
971	>	}
972	>	public void close() {
973	>	try {
974	>	releaser.run();
975	>	} finally {
976	>	super.close();
977	>	}
978	>	}
979	>	}
980	>
981	>	PoolCleaner cleaner(ExecutorService pool) {
982	>	return new PoolCleaner(pool);
983	>	}
984	>
985	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
986	>	return new PoolCleanerWithReleaser(pool, releaser);
987	>	}
988	>
989	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
990	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
991	>	}
992	>
993	>	Runnable releaser(final CountDownLatch latch) {
994	>	return new Runnable() { public void run() {
995	>	do { latch.countDown(); }
996	>	while (latch.getCount() > 0);
997	>	}};
998	>	}
999	>
1000	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
1001	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
1002	>	}
1003	>
1004	>	Runnable releaser(final AtomicBoolean flag) {
1005	>	return new Runnable() { public void run() { flag.set(true); }};
1006	>	}
1007	>
1008	>	/**
1009	>	* Waits out termination of a thread pool or fails doing so.
1010	>	*/
1011	>	void joinPool(ExecutorService pool) {
1012		try {
1013	<	exec.shutdown();
1014	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
1013	>	pool.shutdown();
1014	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1015	>	try {
1016	>	threadFail("ExecutorService " + pool +
1017	>	" did not terminate in a timely manner");
1018	>	} finally {
1019	>	// last resort, for the benefit of subsequent tests
1020	>	pool.shutdownNow();
1021	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1022	>	}
1023	>	}
1024		} catch (SecurityException ok) {
1025		// Allowed in case test doesn't have privs
1026	<	} catch (InterruptedException ie) {
1027	<	fail("Unexpected InterruptedException");
1026	>	} catch (InterruptedException fail) {
1027	>	threadFail("Unexpected InterruptedException");
1028		}
1029		}
1030
1031	+	/**
1032	+	* Like Runnable, but with the freedom to throw anything.
1033	+	* junit folks had the same idea:
1034	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1035	+	*/
1036	+	interface Action { public void run() throws Throwable; }
1037
1038		/**
1039	<	* fail with message "should throw exception"
1039	>	* Runs all the given actions in parallel, failing if any fail.
1040	>	* Useful for running multiple variants of tests that are
1041	>	* necessarily individually slow because they must block.
1042		*/
1043	<	public void shouldThrow() {
1044	<	fail("Should throw exception");
1043	>	void testInParallel(Action ... actions) {
1044	>	ExecutorService pool = Executors.newCachedThreadPool();
1045	>	try (PoolCleaner cleaner = cleaner(pool)) {
1046	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1047	>	for (final Action action : actions)
1048	>	futures.add(pool.submit(new CheckedRunnable() {
1049	>	public void realRun() throws Throwable { action.run();}}));
1050	>	for (Future<?> future : futures)
1051	>	try {
1052	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1053	>	} catch (ExecutionException ex) {
1054	>	threadUnexpectedException(ex.getCause());
1055	>	} catch (Exception ex) {
1056	>	threadUnexpectedException(ex);
1057	>	}
1058	>	}
1059		}
1060
1061		/**
1062	<	* fail with message "should throw " + exceptionName
1062	>	* A debugging tool to print stack traces of most threads, as jstack does.
1063	>	* Uninteresting threads are filtered out.
1064		*/
1065	<	public void shouldThrow(String exceptionName) {
1066	<	fail("Should throw " + exceptionName);
1065	>	static void dumpTestThreads() {
1066	>	SecurityManager sm = System.getSecurityManager();
1067	>	if (sm != null) {
1068	>	try {
1069	>	System.setSecurityManager(null);
1070	>	} catch (SecurityException giveUp) {
1071	>	return;
1072	>	}
1073	>	}
1074	>
1075	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1076	>	System.err.println("------ stacktrace dump start ------");
1077	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1078	>	final String name = info.getThreadName();
1079	>	String lockName;
1080	>	if ("Signal Dispatcher".equals(name))
1081	>	continue;
1082	>	if ("Reference Handler".equals(name)
1083	>	&& (lockName = info.getLockName()) != null
1084	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1085	>	continue;
1086	>	if ("Finalizer".equals(name)
1087	>	&& (lockName = info.getLockName()) != null
1088	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1089	>	continue;
1090	>	if ("checkForWedgedTest".equals(name))
1091	>	continue;
1092	>	System.err.print(info);
1093	>	}
1094	>	System.err.println("------ stacktrace dump end ------");
1095	>
1096	>	if (sm != null) System.setSecurityManager(sm);
1097	>	}
1098	>
1099	>	/**
1100	>	* Checks that thread eventually enters the expected blocked thread state.
1101	>	*/
1102	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1103	>	// always sleep at least 1 ms, with high probability avoiding
1104	>	// transitory states
1105	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1106	>	try { delay(1); }
1107	>	catch (InterruptedException fail) {
1108	>	fail("Unexpected InterruptedException");
1109	>	}
1110	>	Thread.State s = thread.getState();
1111	>	if (s == expected)
1112	>	return;
1113	>	else if (s == Thread.State.TERMINATED)
1114	>	fail("Unexpected thread termination");
1115	>	}
1116	>	fail("timed out waiting for thread to enter thread state " + expected);
1117		}
1118
1119		/**
1120	<	* fail with message "Unexpected exception"
1120	>	* Checks that future.get times out, with the default timeout of
1121	>	* {@code timeoutMillis()}.
1122		*/
1123	<	public void unexpectedException() {
1124	<	fail("Unexpected exception");
1123	>	void assertFutureTimesOut(Future future) {
1124	>	assertFutureTimesOut(future, timeoutMillis());
1125		}
1126
1127		/**
1128	<	* fail with message "Unexpected exception", with argument
1128	>	* Checks that future.get times out, with the given millisecond timeout.
1129		*/
1130	<	public void unexpectedException(Throwable ex) {
1131	<	ex.printStackTrace();
1132	<	fail("Unexpected exception: " + ex);
1130	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
1131	>	long startTime = System.nanoTime();
1132	>	try {
1133	>	future.get(timeoutMillis, MILLISECONDS);
1134	>	shouldThrow();
1135	>	} catch (TimeoutException success) {
1136	>	} catch (Exception fail) {
1137	>	threadUnexpectedException(fail);
1138	>	} finally { future.cancel(true); }
1139	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1140		}
1141
1142	+	/**
1143	+	* Fails with message "should throw exception".
1144	+	*/
1145	+	public void shouldThrow() {
1146	+	fail("Should throw exception");
1147	+	}
1148	+
1149	+	/**
1150	+	* Fails with message "should throw " + exceptionName.
1151	+	*/
1152	+	public void shouldThrow(String exceptionName) {
1153	+	fail("Should throw " + exceptionName);
1154	+	}
1155	+
1156	+	/**
1157	+	* The maximum number of consecutive spurious wakeups we should
1158	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1159	+	*/
1160	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1161
1162		/**
1163		* The number of elements to place in collections, arrays, etc.
#	Line 396 | Line 1184 | public class JSR166TestCase extends Test
1184		public static final Integer m6  = new Integer(-6);
1185		public static final Integer m10 = new Integer(-10);
1186
399	–
1187		/**
1188		* Runs Runnable r with a security policy that permits precisely
1189		* the specified permissions.  If there is no current security
#	Line 408 | Line 1195 | public class JSR166TestCase extends Test
1195		SecurityManager sm = System.getSecurityManager();
1196		if (sm == null) {
1197		r.run();
1198	+	}
1199	+	runWithSecurityManagerWithPermissions(r, permissions);
1200	+	}
1201	+
1202	+	/**
1203	+	* Runs Runnable r with a security policy that permits precisely
1204	+	* the specified permissions.  If there is no current security
1205	+	* manager, a temporary one is set for the duration of the
1206	+	* Runnable.  We require that any security manager permit
1207	+	* getPolicy/setPolicy.
1208	+	*/
1209	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1210	+	Permission... permissions) {
1211	+	SecurityManager sm = System.getSecurityManager();
1212	+	if (sm == null) {
1213		Policy savedPolicy = Policy.getPolicy();
1214		try {
1215		Policy.setPolicy(permissivePolicy());
1216		System.setSecurityManager(new SecurityManager());
1217	<	runWithPermissions(r, permissions);
1217	>	runWithSecurityManagerWithPermissions(r, permissions);
1218		} finally {
1219		System.setSecurityManager(null);
1220		Policy.setPolicy(savedPolicy);
#	Line 460 | Line 1262 | public class JSR166TestCase extends Test
1262		return perms.implies(p);
1263		}
1264		public void refresh() {}
1265	+	public String toString() {
1266	+	List<Permission> ps = new ArrayList<>();
1267	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1268	+	ps.add(e.nextElement());
1269	+	return "AdjustablePolicy with permissions " + ps;
1270	+	}
1271		}
1272
1273		/**
#	Line 482 | Line 1290 | public class JSR166TestCase extends Test
1290		}
1291
1292		/**
1293	<	* Sleep until the timeout has elapsed, or interrupted.
1294	<	* Does <em>NOT</em> throw InterruptedException.
1293	>	* Sleeps until the given time has elapsed.
1294	>	* Throws AssertionFailedError if interrupted.
1295		*/
1296	<	void sleepTillInterrupted(long timeoutMillis) {
1296	>	static void sleep(long millis) {
1297		try {
1298	<	Thread.sleep(timeoutMillis);
1299	<	} catch (InterruptedException wakeup) {}
1298	>	delay(millis);
1299	>	} catch (InterruptedException fail) {
1300	>	AssertionFailedError afe =
1301	>	new AssertionFailedError("Unexpected InterruptedException");
1302	>	afe.initCause(fail);
1303	>	throw afe;
1304	>	}
1305	>	}
1306	>
1307	>	/**
1308	>	* Spin-waits up to the specified number of milliseconds for the given
1309	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1310	>	*/
1311	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1312	>	long startTime = 0L;
1313	>	for (;;) {
1314	>	Thread.State s = thread.getState();
1315	>	if (s == Thread.State.BLOCKED ||
1316	>	s == Thread.State.WAITING ||
1317	>	s == Thread.State.TIMED_WAITING)
1318	>	return;
1319	>	else if (s == Thread.State.TERMINATED)
1320	>	fail("Unexpected thread termination");
1321	>	else if (startTime == 0L)
1322	>	startTime = System.nanoTime();
1323	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1324	>	threadAssertTrue(thread.isAlive());
1325	>	fail("timed out waiting for thread to enter wait state");
1326	>	}
1327	>	Thread.yield();
1328	>	}
1329	>	}
1330	>
1331	>	/**
1332	>	* Spin-waits up to the specified number of milliseconds for the given
1333	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1334	>	* and additionally satisfy the given condition.
1335	>	*/
1336	>	void waitForThreadToEnterWaitState(
1337	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1338	>	long startTime = 0L;
1339	>	for (;;) {
1340	>	Thread.State s = thread.getState();
1341	>	if (s == Thread.State.BLOCKED ||
1342	>	s == Thread.State.WAITING ||
1343	>	s == Thread.State.TIMED_WAITING) {
1344	>	try {
1345	>	if (waitingForGodot.call())
1346	>	return;
1347	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1348	>	}
1349	>	else if (s == Thread.State.TERMINATED)
1350	>	fail("Unexpected thread termination");
1351	>	else if (startTime == 0L)
1352	>	startTime = System.nanoTime();
1353	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1354	>	threadAssertTrue(thread.isAlive());
1355	>	fail("timed out waiting for thread to enter wait state");
1356	>	}
1357	>	Thread.yield();
1358	>	}
1359	>	}
1360	>
1361	>	/**
1362	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1363	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1364	>	*/
1365	>	void waitForThreadToEnterWaitState(Thread thread) {
1366	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1367		}
1368
1369		/**
1370	<	* Returns a new started Thread running the given runnable.
1370	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1371	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1372	>	* and additionally satisfy the given condition.
1373	>	*/
1374	>	void waitForThreadToEnterWaitState(
1375	>	Thread thread, Callable<Boolean> waitingForGodot) {
1376	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1377	>	}
1378	>
1379	>	/**
1380	>	* Returns the number of milliseconds since time given by
1381	>	* startNanoTime, which must have been previously returned from a
1382	>	* call to {@link System#nanoTime()}.
1383	>	*/
1384	>	static long millisElapsedSince(long startNanoTime) {
1385	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1386	>	}
1387	>
1388	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1389	>	//         long startTime = System.nanoTime();
1390	>	//         try {
1391	>	//             r.run();
1392	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1393	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1394	>	//             throw new AssertionFailedError("did not return promptly");
1395	>	//     }
1396	>
1397	>	//     void assertTerminatesPromptly(Runnable r) {
1398	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1399	>	//     }
1400	>
1401	>	/**
1402	>	* Checks that timed f.get() returns the expected value, and does not
1403	>	* wait for the timeout to elapse before returning.
1404	>	*/
1405	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1406	>	long startTime = System.nanoTime();
1407	>	try {
1408	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1409	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1410	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1411	>	throw new AssertionFailedError("timed get did not return promptly");
1412	>	}
1413	>
1414	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1415	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1416	>	}
1417	>
1418	>	/**
1419	>	* Returns a new started daemon Thread running the given runnable.
1420		*/
1421		Thread newStartedThread(Runnable runnable) {
1422		Thread t = new Thread(runnable);
1423	+	t.setDaemon(true);
1424		t.start();
1425		return t;
1426		}
1427
1428	+	/**
1429	+	* Waits for the specified time (in milliseconds) for the thread
1430	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1431	+	* the thread (in the hope that it may terminate later) and fails.
1432	+	*/
1433	+	void awaitTermination(Thread t, long timeoutMillis) {
1434	+	try {
1435	+	t.join(timeoutMillis);
1436	+	} catch (InterruptedException fail) {
1437	+	threadUnexpectedException(fail);
1438	+	} finally {
1439	+	if (t.getState() != Thread.State.TERMINATED) {
1440	+	t.interrupt();
1441	+	threadFail("timed out waiting for thread to terminate");
1442	+	}
1443	+	}
1444	+	}
1445	+
1446	+	/**
1447	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1448	+	* terminate (using {@link Thread#join(long)}), else interrupts
1449	+	* the thread (in the hope that it may terminate later) and fails.
1450	+	*/
1451	+	void awaitTermination(Thread t) {
1452	+	awaitTermination(t, LONG_DELAY_MS);
1453	+	}
1454	+
1455		// Some convenient Runnable classes
1456
1457		public abstract class CheckedRunnable implements Runnable {
#	Line 508 | Line 1460 | public class JSR166TestCase extends Test
1460		public final void run() {
1461		try {
1462		realRun();
1463	<	} catch (Throwable t) {
1464	<	threadUnexpectedException(t);
1463	>	} catch (Throwable fail) {
1464	>	threadUnexpectedException(fail);
1465		}
1466		}
1467		}
#	Line 562 | Line 1514 | public class JSR166TestCase extends Test
1514		realRun();
1515		threadShouldThrow("InterruptedException");
1516		} catch (InterruptedException success) {
1517	<	} catch (Throwable t) {
1518	<	threadUnexpectedException(t);
1517	>	threadAssertFalse(Thread.interrupted());
1518	>	} catch (Throwable fail) {
1519	>	threadUnexpectedException(fail);
1520		}
1521		}
1522		}
#	Line 574 | Line 1527 | public class JSR166TestCase extends Test
1527		public final T call() {
1528		try {
1529		return realCall();
1530	<	} catch (Throwable t) {
1531	<	threadUnexpectedException(t);
1530	>	} catch (Throwable fail) {
1531	>	threadUnexpectedException(fail);
1532	>	return null;
1533		}
580	–	return null;
1534		}
1535		}
1536
1537	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1537	>	public abstract class CheckedInterruptedCallable<T>
1538	>	implements Callable<T> {
1539		protected abstract T realCall() throws Throwable;
1540
1541		public final T call() {
#	Line 590 | Line 1544 | public class JSR166TestCase extends Test
1544		threadShouldThrow("InterruptedException");
1545		return result;
1546		} catch (InterruptedException success) {
1547	<	} catch (Throwable t) {
1548	<	threadUnexpectedException(t);
1547	>	threadAssertFalse(Thread.interrupted());
1548	>	} catch (Throwable fail) {
1549	>	threadUnexpectedException(fail);
1550		}
1551		return null;
1552		}
#	Line 608 | Line 1563 | public class JSR166TestCase extends Test
1563		public static final String TEST_STRING = "a test string";
1564
1565		public static class StringTask implements Callable<String> {
1566	<	public String call() { return TEST_STRING; }
1566	>	final String value;
1567	>	public StringTask() { this(TEST_STRING); }
1568	>	public StringTask(String value) { this.value = value; }
1569	>	public String call() { return value; }
1570		}
1571
1572		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1573		return new CheckedCallable<String>() {
1574	<	public String realCall() {
1574	>	protected String realCall() {
1575		try {
1576		latch.await();
1577		} catch (InterruptedException quittingTime) {}
#	Line 621 | Line 1579 | public class JSR166TestCase extends Test
1579		}};
1580		}
1581
1582	<	public static class NPETask implements Callable<String> {
1583	<	public String call() { throw new NullPointerException(); }
1582	>	public Runnable countDowner(final CountDownLatch latch) {
1583	>	return new CheckedRunnable() {
1584	>	public void realRun() throws InterruptedException {
1585	>	latch.countDown();
1586	>	}};
1587	>	}
1588	>
1589	>	class LatchAwaiter extends CheckedRunnable {
1590	>	static final int NEW = 0;
1591	>	static final int RUNNING = 1;
1592	>	static final int DONE = 2;
1593	>	final CountDownLatch latch;
1594	>	int state = NEW;
1595	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1596	>	public void realRun() throws InterruptedException {
1597	>	state = 1;
1598	>	await(latch);
1599	>	state = 2;
1600	>	}
1601		}
1602
1603	<	public static class CallableOne implements Callable<Integer> {
1604	<	public Integer call() { return one; }
1603	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1604	>	return new LatchAwaiter(latch);
1605		}
1606
1607	<	public class ShortRunnable extends CheckedRunnable {
1608	<	protected void realRun() throws Throwable {
1609	<	Thread.sleep(SHORT_DELAY_MS);
1607	>	public void await(CountDownLatch latch, long timeoutMillis) {
1608	>	try {
1609	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1610	>	fail("timed out waiting for CountDownLatch for "
1611	>	+ (timeoutMillis/1000) + " sec");
1612	>	} catch (Throwable fail) {
1613	>	threadUnexpectedException(fail);
1614		}
1615		}
1616
1617	<	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1618	<	protected void realRun() throws InterruptedException {
1619	<	Thread.sleep(SHORT_DELAY_MS);
1617	>	public void await(CountDownLatch latch) {
1618	>	await(latch, LONG_DELAY_MS);
1619	>	}
1620	>
1621	>	public void await(Semaphore semaphore) {
1622	>	try {
1623	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1624	>	fail("timed out waiting for Semaphore for "
1625	>	+ (LONG_DELAY_MS/1000) + " sec");
1626	>	} catch (Throwable fail) {
1627	>	threadUnexpectedException(fail);
1628		}
1629		}
1630
1631	<	public class SmallRunnable extends CheckedRunnable {
1632	<	protected void realRun() throws Throwable {
1633	<	Thread.sleep(SMALL_DELAY_MS);
1631	>	public void await(CyclicBarrier barrier) {
1632	>	try {
1633	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1634	>	} catch (Throwable fail) {
1635	>	threadUnexpectedException(fail);
1636		}
1637		}
1638
1639	+	//     /**
1640	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1641	+	//      */
1642	+	//     public void await(AtomicBoolean flag) {
1643	+	//         await(flag, LONG_DELAY_MS);
1644	+	//     }
1645	+
1646	+	//     /**
1647	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1648	+	//      */
1649	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1650	+	//         long startTime = System.nanoTime();
1651	+	//         while (!flag.get()) {
1652	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1653	+	//                 throw new AssertionFailedError("timed out");
1654	+	//             Thread.yield();
1655	+	//         }
1656	+	//     }
1657	+
1658	+	public static class NPETask implements Callable<String> {
1659	+	public String call() { throw new NullPointerException(); }
1660	+	}
1661	+
1662		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1663		protected void realRun() {
1664		try {
1665	<	Thread.sleep(SMALL_DELAY_MS);
1665	>	delay(SMALL_DELAY_MS);
1666		} catch (InterruptedException ok) {}
1667		}
1668		}
1669
1670	<	public class SmallCallable extends CheckedCallable {
1671	<	protected Object realCall() throws InterruptedException {
1672	<	Thread.sleep(SMALL_DELAY_MS);
1673	<	return Boolean.TRUE;
1674	<	}
1670	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1671	>	return new CheckedRunnable() {
1672	>	protected void realRun() {
1673	>	try {
1674	>	delay(timeoutMillis);
1675	>	} catch (InterruptedException ok) {}
1676	>	}};
1677		}
1678
1679	<	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
1680	<	protected void realRun() throws InterruptedException {
1681	<	Thread.sleep(SMALL_DELAY_MS);
1679	>	/**
1680	>	* For use as ThreadFactory in constructors
1681	>	*/
1682	>	public static class SimpleThreadFactory implements ThreadFactory {
1683	>	public Thread newThread(Runnable r) {
1684	>	return new Thread(r);
1685		}
1686		}
1687
1688	<	public class MediumRunnable extends CheckedRunnable {
1689	<	protected void realRun() throws Throwable {
673	<	Thread.sleep(MEDIUM_DELAY_MS);
674	<	}
1688	>	public interface TrackedRunnable extends Runnable {
1689	>	boolean isDone();
1690		}
1691
1692	<	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1693	<	protected void realRun() throws InterruptedException {
1694	<	Thread.sleep(MEDIUM_DELAY_MS);
1692	>	public static class TrackedNoOpRunnable implements Runnable {
1693	>	public volatile boolean done = false;
1694	>	public void run() {
1695	>	done = true;
1696		}
1697		}
1698
1699	<	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1700	<	protected void realRun() {
1699	>	/**
1700	>	* Analog of CheckedRunnable for RecursiveAction
1701	>	*/
1702	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1703	>	protected abstract void realCompute() throws Throwable;
1704	>
1705	>	@Override protected final void compute() {
1706		try {
1707	<	Thread.sleep(MEDIUM_DELAY_MS);
1708	<	} catch (InterruptedException ok) {}
1707	>	realCompute();
1708	>	} catch (Throwable fail) {
1709	>	threadUnexpectedException(fail);
1710	>	}
1711		}
1712		}
1713
1714	<	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1715	<	protected void realRun() {
1714	>	/**
1715	>	* Analog of CheckedCallable for RecursiveTask
1716	>	*/
1717	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1718	>	protected abstract T realCompute() throws Throwable;
1719	>
1720	>	@Override protected final T compute() {
1721		try {
1722	<	Thread.sleep(LONG_DELAY_MS);
1723	<	} catch (InterruptedException ok) {}
1722	>	return realCompute();
1723	>	} catch (Throwable fail) {
1724	>	threadUnexpectedException(fail);
1725	>	return null;
1726	>	}
1727		}
1728		}
1729
1730		/**
1731	<	* For use as ThreadFactory in constructors
1731	>	* For use as RejectedExecutionHandler in constructors
1732		*/
1733	<	public static class SimpleThreadFactory implements ThreadFactory {
1734	<	public Thread newThread(Runnable r) {
1735	<	return new Thread(r);
705	<	}
1733	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1734	>	public void rejectedExecution(Runnable r,
1735	>	ThreadPoolExecutor executor) {}
1736		}
1737
1738	<	public static class TrackedShortRunnable implements Runnable {
1739	<	public volatile boolean done = false;
1740	<	public void run() {
1738	>	/**
1739	>	* A CyclicBarrier that uses timed await and fails with
1740	>	* AssertionFailedErrors instead of throwing checked exceptions.
1741	>	*/
1742	>	public static class CheckedBarrier extends CyclicBarrier {
1743	>	public CheckedBarrier(int parties) { super(parties); }
1744	>
1745	>	public int await() {
1746		try {
1747	<	Thread.sleep(SMALL_DELAY_MS);
1748	<	done = true;
1749	<	} catch (InterruptedException ok) {}
1747	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1748	>	} catch (TimeoutException timedOut) {
1749	>	throw new AssertionFailedError("timed out");
1750	>	} catch (Exception fail) {
1751	>	AssertionFailedError afe =
1752	>	new AssertionFailedError("Unexpected exception: " + fail);
1753	>	afe.initCause(fail);
1754	>	throw afe;
1755	>	}
1756		}
1757		}
1758
1759	<	public static class TrackedMediumRunnable implements Runnable {
1760	<	public volatile boolean done = false;
1761	<	public void run() {
1759	>	void checkEmpty(BlockingQueue q) {
1760	>	try {
1761	>	assertTrue(q.isEmpty());
1762	>	assertEquals(0, q.size());
1763	>	assertNull(q.peek());
1764	>	assertNull(q.poll());
1765	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1766	>	assertEquals(q.toString(), "[]");
1767	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1768	>	assertFalse(q.iterator().hasNext());
1769		try {
1770	<	Thread.sleep(MEDIUM_DELAY_MS);
1771	<	done = true;
1772	<	} catch (InterruptedException ok) {}
1770	>	q.element();
1771	>	shouldThrow();
1772	>	} catch (NoSuchElementException success) {}
1773	>	try {
1774	>	q.iterator().next();
1775	>	shouldThrow();
1776	>	} catch (NoSuchElementException success) {}
1777	>	try {
1778	>	q.remove();
1779	>	shouldThrow();
1780	>	} catch (NoSuchElementException success) {}
1781	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1782	>	}
1783	>
1784	>	void assertSerialEquals(Object x, Object y) {
1785	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1786	>	}
1787	>
1788	>	void assertNotSerialEquals(Object x, Object y) {
1789	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1790	>	}
1791	>
1792	>	byte[] serialBytes(Object o) {
1793	>	try {
1794	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1795	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1796	>	oos.writeObject(o);
1797	>	oos.flush();
1798	>	oos.close();
1799	>	return bos.toByteArray();
1800	>	} catch (Throwable fail) {
1801	>	threadUnexpectedException(fail);
1802	>	return new byte[0];
1803		}
1804		}
1805
1806	<	public static class TrackedLongRunnable implements Runnable {
1807	<	public volatile boolean done = false;
1808	<	public void run() {
1809	<	try {
1810	<	Thread.sleep(LONG_DELAY_MS);
1811	<	done = true;
734	<	} catch (InterruptedException ok) {}
1806	>	void assertImmutable(final Object o) {
1807	>	if (o instanceof Collection) {
1808	>	assertThrows(
1809	>	UnsupportedOperationException.class,
1810	>	new Runnable() { public void run() {
1811	>	((Collection) o).add(null);}});
1812		}
1813		}
1814
1815	<	public static class TrackedNoOpRunnable implements Runnable {
1816	<	public volatile boolean done = false;
1817	<	public void run() {
1818	<	done = true;
1815	>	@SuppressWarnings("unchecked")
1816	>	<T> T serialClone(T o) {
1817	>	try {
1818	>	ObjectInputStream ois = new ObjectInputStream
1819	>	(new ByteArrayInputStream(serialBytes(o)));
1820	>	T clone = (T) ois.readObject();
1821	>	if (o == clone) assertImmutable(o);
1822	>	assertSame(o.getClass(), clone.getClass());
1823	>	return clone;
1824	>	} catch (Throwable fail) {
1825	>	threadUnexpectedException(fail);
1826	>	return null;
1827		}
1828		}
1829
1830	<	public static class TrackedCallable implements Callable {
1831	<	public volatile boolean done = false;
1832	<	public Object call() {
1833	<	try {
1834	<	Thread.sleep(SMALL_DELAY_MS);
1835	<	done = true;
1836	<	} catch (InterruptedException ok) {}
1837	<	return Boolean.TRUE;
1830	>	/**
1831	>	* A version of serialClone that leaves error handling (for
1832	>	* e.g. NotSerializableException) up to the caller.
1833	>	*/
1834	>	@SuppressWarnings("unchecked")
1835	>	<T> T serialClonePossiblyFailing(T o)
1836	>	throws ReflectiveOperationException, java.io.IOException {
1837	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1838	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1839	>	oos.writeObject(o);
1840	>	oos.flush();
1841	>	oos.close();
1842	>	ObjectInputStream ois = new ObjectInputStream
1843	>	(new ByteArrayInputStream(bos.toByteArray()));
1844	>	T clone = (T) ois.readObject();
1845	>	if (o == clone) assertImmutable(o);
1846	>	assertSame(o.getClass(), clone.getClass());
1847	>	return clone;
1848	>	}
1849	>
1850	>	/**
1851	>	* If o implements Cloneable and has a public clone method,
1852	>	* returns a clone of o, else null.
1853	>	*/
1854	>	@SuppressWarnings("unchecked")
1855	>	<T> T cloneableClone(T o) {
1856	>	if (!(o instanceof Cloneable)) return null;
1857	>	final T clone;
1858	>	try {
1859	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1860	>	} catch (NoSuchMethodException ok) {
1861	>	return null;
1862	>	} catch (ReflectiveOperationException unexpected) {
1863	>	throw new Error(unexpected);
1864	>	}
1865	>	assertNotSame(o, clone); // not 100% guaranteed by spec
1866	>	assertSame(o.getClass(), clone.getClass());
1867	>	return clone;
1868	>	}
1869	>
1870	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1871	>	Runnable... throwingActions) {
1872	>	for (Runnable throwingAction : throwingActions) {
1873	>	boolean threw = false;
1874	>	try { throwingAction.run(); }
1875	>	catch (Throwable t) {
1876	>	threw = true;
1877	>	if (!expectedExceptionClass.isInstance(t)) {
1878	>	AssertionFailedError afe =
1879	>	new AssertionFailedError
1880	>	("Expected " + expectedExceptionClass.getName() +
1881	>	", got " + t.getClass().getName());
1882	>	afe.initCause(t);
1883	>	threadUnexpectedException(afe);
1884	>	}
1885	>	}
1886	>	if (!threw)
1887	>	shouldThrow(expectedExceptionClass.getName());
1888		}
1889		}
1890
1891	+	public void assertIteratorExhausted(Iterator<?> it) {
1892	+	try {
1893	+	it.next();
1894	+	shouldThrow();
1895	+	} catch (NoSuchElementException success) {}
1896	+	assertFalse(it.hasNext());
1897	+	}
1898	+
1899	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1900	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1901	+	}
1902	+
1903	+	public Runnable runnableThrowing(final RuntimeException ex) {
1904	+	return new Runnable() { public void run() { throw ex; }};
1905	+	}
1906	+
1907	+	/** A reusable thread pool to be shared by tests. */
1908	+	static final ExecutorService cachedThreadPool =
1909	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1910	+	1000L, MILLISECONDS,
1911	+	new SynchronousQueue<Runnable>());
1912	+
1913	+	static <T> void shuffle(T[] array) {
1914	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1915	+	}
1916
1917		/**
1918	<	* For use as RejectedExecutionHandler in constructors
1918	>	* Returns the same String as would be returned by {@link
1919	>	* Object#toString}, whether or not the given object's class
1920	>	* overrides toString().
1921	>	*
1922	>	* @see System#identityHashCode
1923		*/
1924	<	public static class NoOpREHandler implements RejectedExecutionHandler {
1925	<	public void rejectedExecution(Runnable r,
1926	<	ThreadPoolExecutor executor) {}
1924	>	static String identityString(Object x) {
1925	>	return x.getClass().getName()
1926	>	+ "@" + Integer.toHexString(System.identityHashCode(x));
1927	>	}
1928	>
1929	>	// --- Shared assertions for Executor tests ---
1930	>
1931	>	/**
1932	>	* Returns maximum number of tasks that can be submitted to given
1933	>	* pool (with bounded queue) before saturation (when submission
1934	>	* throws RejectedExecutionException).
1935	>	*/
1936	>	static final int saturatedSize(ThreadPoolExecutor pool) {
1937	>	BlockingQueue<Runnable> q = pool.getQueue();
1938	>	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1939		}
1940
1941	+	@SuppressWarnings("FutureReturnValueIgnored")
1942	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1943	+	try {
1944	+	e.execute((Runnable) null);
1945	+	shouldThrow();
1946	+	} catch (NullPointerException success) {}
1947	+
1948	+	if (! (e instanceof ExecutorService)) return;
1949	+	ExecutorService es = (ExecutorService) e;
1950	+	try {
1951	+	es.submit((Runnable) null);
1952	+	shouldThrow();
1953	+	} catch (NullPointerException success) {}
1954	+	try {
1955	+	es.submit((Runnable) null, Boolean.TRUE);
1956	+	shouldThrow();
1957	+	} catch (NullPointerException success) {}
1958	+	try {
1959	+	es.submit((Callable) null);
1960	+	shouldThrow();
1961	+	} catch (NullPointerException success) {}
1962	+
1963	+	if (! (e instanceof ScheduledExecutorService)) return;
1964	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1965	+	try {
1966	+	ses.schedule((Runnable) null,
1967	+	randomTimeout(), randomTimeUnit());
1968	+	shouldThrow();
1969	+	} catch (NullPointerException success) {}
1970	+	try {
1971	+	ses.schedule((Callable) null,
1972	+	randomTimeout(), randomTimeUnit());
1973	+	shouldThrow();
1974	+	} catch (NullPointerException success) {}
1975	+	try {
1976	+	ses.scheduleAtFixedRate((Runnable) null,
1977	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1978	+	shouldThrow();
1979	+	} catch (NullPointerException success) {}
1980	+	try {
1981	+	ses.scheduleWithFixedDelay((Runnable) null,
1982	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1983	+	shouldThrow();
1984	+	} catch (NullPointerException success) {}
1985	+	}
1986	+
1987	+	void setRejectedExecutionHandler(
1988	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1989	+	p.setRejectedExecutionHandler(handler);
1990	+	assertSame(handler, p.getRejectedExecutionHandler());
1991	+	}
1992	+
1993	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1994	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1995	+	final long savedTaskCount = p.getTaskCount();
1996	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1997	+	final int savedQueueSize = p.getQueue().size();
1998	+	final boolean stock = (p.getClass().getClassLoader() == null);
1999	+
2000	+	Runnable r = () -> {};
2001	+	Callable<Boolean> c = () -> Boolean.TRUE;
2002	+
2003	+	class Recorder implements RejectedExecutionHandler {
2004	+	public volatile Runnable r = null;
2005	+	public volatile ThreadPoolExecutor p = null;
2006	+	public void reset() { r = null; p = null; }
2007	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2008	+	assertNull(this.r);
2009	+	assertNull(this.p);
2010	+	this.r = r;
2011	+	this.p = p;
2012	+	}
2013	+	}
2014	+
2015	+	// check custom handler is invoked exactly once per task
2016	+	Recorder recorder = new Recorder();
2017	+	setRejectedExecutionHandler(p, recorder);
2018	+	for (int i = 2; i--> 0; ) {
2019	+	recorder.reset();
2020	+	p.execute(r);
2021	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2022	+	assertSame(r, recorder.r);
2023	+	assertSame(p, recorder.p);
2024	+
2025	+	recorder.reset();
2026	+	assertFalse(p.submit(r).isDone());
2027	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2028	+	assertSame(p, recorder.p);
2029	+
2030	+	recorder.reset();
2031	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2032	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2033	+	assertSame(p, recorder.p);
2034	+
2035	+	recorder.reset();
2036	+	assertFalse(p.submit(c).isDone());
2037	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2038	+	assertSame(p, recorder.p);
2039	+
2040	+	if (p instanceof ScheduledExecutorService) {
2041	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2042	+	ScheduledFuture<?> future;
2043	+
2044	+	recorder.reset();
2045	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2046	+	assertFalse(future.isDone());
2047	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2048	+	assertSame(p, recorder.p);
2049	+
2050	+	recorder.reset();
2051	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2052	+	assertFalse(future.isDone());
2053	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2054	+	assertSame(p, recorder.p);
2055	+
2056	+	recorder.reset();
2057	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2058	+	assertFalse(future.isDone());
2059	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2060	+	assertSame(p, recorder.p);
2061	+
2062	+	recorder.reset();
2063	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2064	+	assertFalse(future.isDone());
2065	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2066	+	assertSame(p, recorder.p);
2067	+	}
2068	+	}
2069	+
2070	+	// Checking our custom handler above should be sufficient, but
2071	+	// we add some integration tests of standard handlers.
2072	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2073	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2074	+
2075	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2076	+	try {
2077	+	p.execute(setThread);
2078	+	shouldThrow();
2079	+	} catch (RejectedExecutionException success) {}
2080	+	assertNull(thread.get());
2081	+
2082	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2083	+	p.execute(setThread);
2084	+	assertNull(thread.get());
2085	+
2086	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2087	+	p.execute(setThread);
2088	+	if (p.isShutdown())
2089	+	assertNull(thread.get());
2090	+	else
2091	+	assertSame(Thread.currentThread(), thread.get());
2092	+
2093	+	setRejectedExecutionHandler(p, savedHandler);
2094	+
2095	+	// check that pool was not perturbed by handlers
2096	+	assertEquals(savedTaskCount, p.getTaskCount());
2097	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2098	+	assertEquals(savedQueueSize, p.getQueue().size());
2099	+	}
2100		}

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