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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.48 by jsr166, Tue Dec 1 22:51:44 2009 UTC vs.
Revision 1.239 by jsr166, Tue Jan 23 20:44:11 2018 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by Doug Lea with assistance from members of JCP JSR-166
3	<	* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
2	>	* Written by Doug Lea and Martin Buchholz with assistance from
3	>	* members of JCP JSR-166 Expert Group and released to the public
4	>	* domain, as explained at
5	>	* http://creativecommons.org/publicdomain/zero/1.0/
6		* Other contributors include Andrew Wright, Jeffrey Hayes,
7		* Pat Fisher, Mike Judd.
8		*/
9
10	<	import junit.framework.*;
11	<	import java.util.*;
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.Test;
103	>	import junit.framework.TestCase;
104	>	import junit.framework.TestResult;
105	>	import junit.framework.TestSuite;
106
107		/**
108		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 114 | import java.security.*;
114		*
115		* <ol>
116		*
117	<	* <li> All assertions in code running in generated threads must use
117	>	* <li>All assertions in code running in generated threads must use
118		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
119		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
120	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
120	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
121		* particularly recommended) for other code to use these forms too.
122		* Only the most typically used JUnit assertion methods are defined
123	<	* this way, but enough to live with.</li>
123	>	* this way, but enough to live with.
124		*
125	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
126	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
125	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
126	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
127		* them. These methods are used to clear and check for thread
128	<	* assertion failures.</li>
128	>	* assertion failures.
129		*
130	<	* <li>All delays and timeouts must use one of the constants <tt>
131	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
132	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
130	>	* <li>All delays and timeouts must use one of the constants {@code
131	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
132	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
133		* discriminable from zero time, and always allows enough time for the
134		* small amounts of computation (creating a thread, calling a few
135		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
136		* is always discriminable as larger than SHORT and smaller than
137		* MEDIUM.  And so on. These constants are set to conservative values,
138		* but even so, if there is ever any doubt, they can all be increased
139	<	* in one spot to rerun tests on slower platforms.</li>
139	>	* in one spot to rerun tests on slower platforms.
140		*
141	<	* <li> All threads generated must be joined inside each test case
142	<	* method (or <tt>fail</tt> to do so) before returning from the
143	<	* method. The <tt> joinPool</tt> method can be used to do this when
144	<	* using Executors.</li>
141	>	* <li>All threads generated must be joined inside each test case
142	>	* method (or {@code fail} to do so) before returning from the
143	>	* method. The {@code joinPool} method can be used to do this when
144	>	* using Executors.
145		*
146		* </ol>
147		*
148	<	* <p> <b>Other notes</b>
148	>	* <p><b>Other notes</b>
149		* <ul>
150		*
151	<	* <li> Usually, there is one testcase method per JSR166 method
151	>	* <li>Usually, there is one testcase method per JSR166 method
152		* covering "normal" operation, and then as many exception-testing
153		* methods as there are exceptions the method can throw. Sometimes
154		* there are multiple tests per JSR166 method when the different
155		* "normal" behaviors differ significantly. And sometimes testcases
156	<	* cover multiple methods when they cannot be tested in
66	<	* isolation.</li>
156	>	* cover multiple methods when they cannot be tested in isolation.
157		*
158	<	* <li> The documentation style for testcases is to provide as javadoc
158	>	* <li>The documentation style for testcases is to provide as javadoc
159		* a simple sentence or two describing the property that the testcase
160		* method purports to test. The javadocs do not say anything about how
161	<	* the property is tested. To find out, read the code.</li>
161	>	* the property is tested. To find out, read the code.
162		*
163	<	* <li> These tests are "conformance tests", and do not attempt to
163	>	* <li>These tests are "conformance tests", and do not attempt to
164		* test throughput, latency, scalability or other performance factors
165		* (see the separate "jtreg" tests for a set intended to check these
166		* for the most central aspects of functionality.) So, most tests use
167		* the smallest sensible numbers of threads, collection sizes, etc
168	<	* needed to check basic conformance.</li>
168	>	* needed to check basic conformance.
169		*
170		* <li>The test classes currently do not declare inclusion in
171		* any particular package to simplify things for people integrating
172	<	* them in TCK test suites.</li>
172	>	* them in TCK test suites.
173		*
174	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
175	<	* runs all JSR166 unit tests.</li>
174	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
175	>	* runs all JSR166 unit tests.
176		*
177		* </ul>
178		*/
179		public class JSR166TestCase extends TestCase {
180	+	private static final boolean useSecurityManager =
181	+	Boolean.getBoolean("jsr166.useSecurityManager");
182	+
183	+	protected static final boolean expensiveTests =
184	+	Boolean.getBoolean("jsr166.expensiveTests");
185	+
186	+	/**
187	+	* If true, also run tests that are not part of the official tck
188	+	* because they test unspecified implementation details.
189	+	*/
190	+	protected static final boolean testImplementationDetails =
191	+	Boolean.getBoolean("jsr166.testImplementationDetails");
192	+
193	+	/**
194	+	* If true, report on stdout all "slow" tests, that is, ones that
195	+	* take more than profileThreshold milliseconds to execute.
196	+	*/
197	+	private static final boolean profileTests =
198	+	Boolean.getBoolean("jsr166.profileTests");
199	+
200		/**
201	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
201	>	* The number of milliseconds that tests are permitted for
202	>	* execution without being reported, when profileTests is set.
203	>	*/
204	>	private static final long profileThreshold =
205	>	Long.getLong("jsr166.profileThreshold", 100);
206	>
207	>	/**
208	>	* The number of repetitions per test (for tickling rare bugs).
209	>	*/
210	>	private static final int runsPerTest =
211	>	Integer.getInteger("jsr166.runsPerTest", 1);
212	>
213	>	/**
214	>	* The number of repetitions of the test suite (for finding leaks?).
215	>	*/
216	>	private static final int suiteRuns =
217	>	Integer.getInteger("jsr166.suiteRuns", 1);
218	>
219	>	/**
220	>	* Returns the value of the system property, or NaN if not defined.
221	>	*/
222	>	private static float systemPropertyValue(String name) {
223	>	String floatString = System.getProperty(name);
224	>	if (floatString == null)
225	>	return Float.NaN;
226	>	try {
227	>	return Float.parseFloat(floatString);
228	>	} catch (NumberFormatException ex) {
229	>	throw new IllegalArgumentException(
230	>	String.format("Bad float value in system property %s=%s",
231	>	name, floatString));
232	>	}
233	>	}
234	>
235	>	/**
236	>	* The scaling factor to apply to standard delays used in tests.
237	>	* May be initialized from any of:
238	>	* - the "jsr166.delay.factor" system property
239	>	* - the "test.timeout.factor" system property (as used by jtreg)
240	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
241	>	* - hard-coded fuzz factor when using a known slowpoke VM
242	>	*/
243	>	private static final float delayFactor = delayFactor();
244	>
245	>	private static float delayFactor() {
246	>	float x;
247	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
248	>	return x;
249	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
250	>	return x;
251	>	String prop = System.getProperty("java.vm.version");
252	>	if (prop != null && prop.matches(".*debug.*"))
253	>	return 4.0f; // How much slower is fastdebug than product?!
254	>	return 1.0f;
255	>	}
256	>
257	>	public JSR166TestCase() { super(); }
258	>	public JSR166TestCase(String name) { super(name); }
259	>
260	>	/**
261	>	* A filter for tests to run, matching strings of the form
262	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
263	>	* Usefully combined with jsr166.runsPerTest.
264	>	*/
265	>	private static final Pattern methodFilter = methodFilter();
266	>
267	>	private static Pattern methodFilter() {
268	>	String regex = System.getProperty("jsr166.methodFilter");
269	>	return (regex == null) ? null : Pattern.compile(regex);
270	>	}
271	>
272	>	// Instrumentation to debug very rare, but very annoying hung test runs.
273	>	static volatile TestCase currentTestCase;
274	>	// static volatile int currentRun = 0;
275	>	static {
276	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
277	>	// Avoid spurious reports with enormous runsPerTest.
278	>	// A single test case run should never take more than 1 second.
279	>	// But let's cap it at the high end too ...
280	>	final int timeoutMinutes =
281	>	Math.min(15, Math.max(runsPerTest / 60, 1));
282	>	for (TestCase lastTestCase = currentTestCase;;) {
283	>	try { MINUTES.sleep(timeoutMinutes); }
284	>	catch (InterruptedException unexpected) { break; }
285	>	if (lastTestCase == currentTestCase) {
286	>	System.err.printf(
287	>	"Looks like we're stuck running test: %s%n",
288	>	lastTestCase);
289	>	//                     System.err.printf(
290	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
291	>	//                         lastTestCase, currentRun, runsPerTest);
292	>	//                     System.err.println("availableProcessors=" +
293	>	//                         Runtime.getRuntime().availableProcessors());
294	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
295	>	dumpTestThreads();
296	>	// one stack dump is probably enough; more would be spam
297	>	break;
298	>	}
299	>	lastTestCase = currentTestCase;
300	>	}}};
301	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
302	>	thread.setDaemon(true);
303	>	thread.start();
304	>	}
305	>
306	>	//     public static String cpuModel() {
307	>	//         try {
308	>	//             java.util.regex.Matcher matcher
309	>	//               = Pattern.compile("model name\\s*: (.*)")
310	>	//                 .matcher(new String(
311	>	//                     java.nio.file.Files.readAllBytes(
312	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
313	>	//             matcher.find();
314	>	//             return matcher.group(1);
315	>	//         } catch (Exception ex) { return null; }
316	>	//     }
317	>
318	>	public void runBare() throws Throwable {
319	>	currentTestCase = this;
320	>	if (methodFilter == null
321	>	|| methodFilter.matcher(toString()).find())
322	>	super.runBare();
323	>	}
324	>
325	>	protected void runTest() throws Throwable {
326	>	for (int i = 0; i < runsPerTest; i++) {
327	>	// currentRun = i;
328	>	if (profileTests)
329	>	runTestProfiled();
330	>	else
331	>	super.runTest();
332	>	}
333	>	}
334	>
335	>	protected void runTestProfiled() throws Throwable {
336	>	for (int i = 0; i < 2; i++) {
337	>	long startTime = System.nanoTime();
338	>	super.runTest();
339	>	long elapsedMillis = millisElapsedSince(startTime);
340	>	if (elapsedMillis < profileThreshold)
341	>	break;
342	>	// Never report first run of any test; treat it as a
343	>	// warmup run, notably to trigger all needed classloading,
344	>	if (i > 0)
345	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
346	>	}
347	>	}
348	>
349	>	/**
350	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
351		*/
352		public static void main(String[] args) {
353	<	int iters = 1;
354	<	if (args.length > 0)
355	<	iters = Integer.parseInt(args[0]);
356	<	Test s = suite();
357	<	for (int i = 0; i < iters; ++i) {
358	<	junit.textui.TestRunner.run(s);
353	>	main(suite(), args);
354	>	}
355	>
356	>	static class PithyResultPrinter extends junit.textui.ResultPrinter {
357	>	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
358	>	long runTime;
359	>	public void startTest(Test test) {}
360	>	protected void printHeader(long runTime) {
361	>	this.runTime = runTime; // defer printing for later
362	>	}
363	>	protected void printFooter(TestResult result) {
364	>	if (result.wasSuccessful()) {
365	>	getWriter().println("OK (" + result.runCount() + " tests)"
366	>	+ "  Time: " + elapsedTimeAsString(runTime));
367	>	} else {
368	>	getWriter().println("Time: " + elapsedTimeAsString(runTime));
369	>	super.printFooter(result);
370	>	}
371	>	}
372	>	}
373	>
374	>	/**
375	>	* Returns a TestRunner that doesn't bother with unnecessary
376	>	* fluff, like printing a "." for each test case.
377	>	*/
378	>	static junit.textui.TestRunner newPithyTestRunner() {
379	>	junit.textui.TestRunner runner = new junit.textui.TestRunner();
380	>	runner.setPrinter(new PithyResultPrinter(System.out));
381	>	return runner;
382	>	}
383	>
384	>	/**
385	>	* Runs all unit tests in the given test suite.
386	>	* Actual behavior influenced by jsr166.* system properties.
387	>	*/
388	>	static void main(Test suite, String[] args) {
389	>	if (useSecurityManager) {
390	>	System.err.println("Setting a permissive security manager");
391	>	Policy.setPolicy(permissivePolicy());
392	>	System.setSecurityManager(new SecurityManager());
393	>	}
394	>	for (int i = 0; i < suiteRuns; i++) {
395	>	TestResult result = newPithyTestRunner().doRun(suite);
396	>	if (!result.wasSuccessful())
397	>	System.exit(1);
398		System.gc();
399		System.runFinalization();
400		}
103	–	System.exit(0);
401		}
402
403	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
404	+	TestSuite suite = new TestSuite();
405	+	for (Object suiteOrClass : suiteOrClasses) {
406	+	if (suiteOrClass instanceof TestSuite)
407	+	suite.addTest((TestSuite) suiteOrClass);
408	+	else if (suiteOrClass instanceof Class)
409	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
410	+	else
411	+	throw new ClassCastException("not a test suite or class");
412	+	}
413	+	return suite;
414	+	}
415	+
416	+	public static void addNamedTestClasses(TestSuite suite,
417	+	String... testClassNames) {
418	+	for (String testClassName : testClassNames) {
419	+	try {
420	+	Class<?> testClass = Class.forName(testClassName);
421	+	Method m = testClass.getDeclaredMethod("suite",
422	+	new Class<?>[0]);
423	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
424	+	} catch (Exception e) {
425	+	throw new Error("Missing test class", e);
426	+	}
427	+	}
428	+	}
429	+
430	+	public static final double JAVA_CLASS_VERSION;
431	+	public static final String JAVA_SPECIFICATION_VERSION;
432	+	static {
433	+	try {
434	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
435	+	new java.security.PrivilegedAction<Double>() {
436	+	public Double run() {
437	+	return Double.valueOf(System.getProperty("java.class.version"));}});
438	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
439	+	new java.security.PrivilegedAction<String>() {
440	+	public String run() {
441	+	return System.getProperty("java.specification.version");}});
442	+	} catch (Throwable t) {
443	+	throw new Error(t);
444	+	}
445	+	}
446	+
447	+	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
448	+	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
449	+	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
450	+	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
451	+	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
452	+
453		/**
454	<	* Collects all JSR166 unit tests as one suite
454	>	* Collects all JSR166 unit tests as one suite.
455		*/
456		public static Test suite() {
457	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
458	<
459	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
460	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
461	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
462	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
463	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
464	<	suite.addTest(new TestSuite(PhaserTest.class));
465	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
466	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
467	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
468	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
469	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
470	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
471	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
472	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
473	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
474	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
475	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
476	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
477	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
478	<	suite.addTest(new TestSuite(AtomicLongTest.class));
479	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
480	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
481	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
482	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
483	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
484	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
485	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
486	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
487	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
488	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
489	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
490	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
491	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
492	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
493	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
494	<	suite.addTest(new TestSuite(DelayQueueTest.class));
495	<	suite.addTest(new TestSuite(EntryTest.class));
496	<	suite.addTest(new TestSuite(ExchangerTest.class));
497	<	suite.addTest(new TestSuite(ExecutorsTest.class));
498	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
499	<	suite.addTest(new TestSuite(FutureTaskTest.class));
500	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
501	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
502	<	suite.addTest(new TestSuite(LinkedListTest.class));
503	<	suite.addTest(new TestSuite(LockSupportTest.class));
504	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
505	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
506	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
507	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
508	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
509	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
510	<	suite.addTest(new TestSuite(SemaphoreTest.class));
511	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
512	<	suite.addTest(new TestSuite(SystemTest.class));
513	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
514	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
515	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
516	<	suite.addTest(new TestSuite(ThreadTest.class));
517	<	suite.addTest(new TestSuite(TimeUnitTest.class));
518	<	suite.addTest(new TestSuite(TreeMapTest.class));
519	<	suite.addTest(new TestSuite(TreeSetTest.class));
520	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
521	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
457	>	// Java7+ test classes
458	>	TestSuite suite = newTestSuite(
459	>	ForkJoinPoolTest.suite(),
460	>	ForkJoinTaskTest.suite(),
461	>	RecursiveActionTest.suite(),
462	>	RecursiveTaskTest.suite(),
463	>	LinkedTransferQueueTest.suite(),
464	>	PhaserTest.suite(),
465	>	ThreadLocalRandomTest.suite(),
466	>	AbstractExecutorServiceTest.suite(),
467	>	AbstractQueueTest.suite(),
468	>	AbstractQueuedSynchronizerTest.suite(),
469	>	AbstractQueuedLongSynchronizerTest.suite(),
470	>	ArrayBlockingQueueTest.suite(),
471	>	ArrayDequeTest.suite(),
472	>	ArrayListTest.suite(),
473	>	AtomicBooleanTest.suite(),
474	>	AtomicIntegerArrayTest.suite(),
475	>	AtomicIntegerFieldUpdaterTest.suite(),
476	>	AtomicIntegerTest.suite(),
477	>	AtomicLongArrayTest.suite(),
478	>	AtomicLongFieldUpdaterTest.suite(),
479	>	AtomicLongTest.suite(),
480	>	AtomicMarkableReferenceTest.suite(),
481	>	AtomicReferenceArrayTest.suite(),
482	>	AtomicReferenceFieldUpdaterTest.suite(),
483	>	AtomicReferenceTest.suite(),
484	>	AtomicStampedReferenceTest.suite(),
485	>	ConcurrentHashMapTest.suite(),
486	>	ConcurrentLinkedDequeTest.suite(),
487	>	ConcurrentLinkedQueueTest.suite(),
488	>	ConcurrentSkipListMapTest.suite(),
489	>	ConcurrentSkipListSubMapTest.suite(),
490	>	ConcurrentSkipListSetTest.suite(),
491	>	ConcurrentSkipListSubSetTest.suite(),
492	>	CopyOnWriteArrayListTest.suite(),
493	>	CopyOnWriteArraySetTest.suite(),
494	>	CountDownLatchTest.suite(),
495	>	CountedCompleterTest.suite(),
496	>	CyclicBarrierTest.suite(),
497	>	DelayQueueTest.suite(),
498	>	EntryTest.suite(),
499	>	ExchangerTest.suite(),
500	>	ExecutorsTest.suite(),
501	>	ExecutorCompletionServiceTest.suite(),
502	>	FutureTaskTest.suite(),
503	>	LinkedBlockingDequeTest.suite(),
504	>	LinkedBlockingQueueTest.suite(),
505	>	LinkedListTest.suite(),
506	>	LockSupportTest.suite(),
507	>	PriorityBlockingQueueTest.suite(),
508	>	PriorityQueueTest.suite(),
509	>	ReentrantLockTest.suite(),
510	>	ReentrantReadWriteLockTest.suite(),
511	>	ScheduledExecutorTest.suite(),
512	>	ScheduledExecutorSubclassTest.suite(),
513	>	SemaphoreTest.suite(),
514	>	SynchronousQueueTest.suite(),
515	>	SystemTest.suite(),
516	>	ThreadLocalTest.suite(),
517	>	ThreadPoolExecutorTest.suite(),
518	>	ThreadPoolExecutorSubclassTest.suite(),
519	>	ThreadTest.suite(),
520	>	TimeUnitTest.suite(),
521	>	TreeMapTest.suite(),
522	>	TreeSetTest.suite(),
523	>	TreeSubMapTest.suite(),
524	>	TreeSubSetTest.suite(),
525	>	VectorTest.suite());
526	>
527	>	// Java8+ test classes
528	>	if (atLeastJava8()) {
529	>	String[] java8TestClassNames = {
530	>	"ArrayDeque8Test",
531	>	"Atomic8Test",
532	>	"CompletableFutureTest",
533	>	"ConcurrentHashMap8Test",
534	>	"CountedCompleter8Test",
535	>	"DoubleAccumulatorTest",
536	>	"DoubleAdderTest",
537	>	"ForkJoinPool8Test",
538	>	"ForkJoinTask8Test",
539	>	"HashMapTest",
540	>	"LinkedBlockingDeque8Test",
541	>	"LinkedBlockingQueue8Test",
542	>	"LongAccumulatorTest",
543	>	"LongAdderTest",
544	>	"SplittableRandomTest",
545	>	"StampedLockTest",
546	>	"SubmissionPublisherTest",
547	>	"ThreadLocalRandom8Test",
548	>	"TimeUnit8Test",
549	>	};
550	>	addNamedTestClasses(suite, java8TestClassNames);
551	>	}
552	>
553	>	// Java9+ test classes
554	>	if (atLeastJava9()) {
555	>	String[] java9TestClassNames = {
556	>	"AtomicBoolean9Test",
557	>	"AtomicInteger9Test",
558	>	"AtomicIntegerArray9Test",
559	>	"AtomicLong9Test",
560	>	"AtomicLongArray9Test",
561	>	"AtomicReference9Test",
562	>	"AtomicReferenceArray9Test",
563	>	"ExecutorCompletionService9Test",
564	>	"ForkJoinPool9Test",
565	>	};
566	>	addNamedTestClasses(suite, java9TestClassNames);
567	>	}
568
569		return suite;
570		}
571
572	+	/** Returns list of junit-style test method names in given class. */
573	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
574	+	Method[] methods = testClass.getDeclaredMethods();
575	+	ArrayList<String> names = new ArrayList<>(methods.length);
576	+	for (Method method : methods) {
577	+	if (method.getName().startsWith("test")
578	+	&& Modifier.isPublic(method.getModifiers())
579	+	// method.getParameterCount() requires jdk8+
580	+	&& method.getParameterTypes().length == 0) {
581	+	names.add(method.getName());
582	+	}
583	+	}
584	+	return names;
585	+	}
586	+
587	+	/**
588	+	* Returns junit-style testSuite for the given test class, but
589	+	* parameterized by passing extra data to each test.
590	+	*/
591	+	public static <ExtraData> Test parameterizedTestSuite
592	+	(Class<? extends JSR166TestCase> testClass,
593	+	Class<ExtraData> dataClass,
594	+	ExtraData data) {
595	+	try {
596	+	TestSuite suite = new TestSuite();
597	+	Constructor c =
598	+	testClass.getDeclaredConstructor(dataClass, String.class);
599	+	for (String methodName : testMethodNames(testClass))
600	+	suite.addTest((Test) c.newInstance(data, methodName));
601	+	return suite;
602	+	} catch (Exception e) {
603	+	throw new Error(e);
604	+	}
605	+	}
606	+
607	+	/**
608	+	* Returns junit-style testSuite for the jdk8 extension of the
609	+	* given test class, but parameterized by passing extra data to
610	+	* each test.  Uses reflection to allow compilation in jdk7.
611	+	*/
612	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
613	+	(Class<? extends JSR166TestCase> testClass,
614	+	Class<ExtraData> dataClass,
615	+	ExtraData data) {
616	+	if (atLeastJava8()) {
617	+	String name = testClass.getName();
618	+	String name8 = name.replaceAll("Test$", "8Test");
619	+	if (name.equals(name8)) throw new Error(name);
620	+	try {
621	+	return (Test)
622	+	Class.forName(name8)
623	+	.getMethod("testSuite", new Class[] { dataClass })
624	+	.invoke(null, data);
625	+	} catch (Exception e) {
626	+	throw new Error(e);
627	+	}
628	+	} else {
629	+	return new TestSuite();
630	+	}
631	+	}
632	+
633	+	// Delays for timing-dependent tests, in milliseconds.
634
635		public static long SHORT_DELAY_MS;
636		public static long SMALL_DELAY_MS;
637		public static long MEDIUM_DELAY_MS;
638		public static long LONG_DELAY_MS;
639
640	+	private static final long RANDOM_TIMEOUT;
641	+	private static final long RANDOM_EXPIRED_TIMEOUT;
642	+	private static final TimeUnit RANDOM_TIMEUNIT;
643	+	static {
644	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
645	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
646	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
647	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
648	+	TimeUnit[] timeUnits = TimeUnit.values();
649	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
650	+	}
651	+
652	+	/**
653	+	* Returns a timeout for use when any value at all will do.
654	+	*/
655	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
656	+
657	+	/**
658	+	* Returns a timeout that means "no waiting", i.e. not positive.
659	+	*/
660	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
661	+
662	+	/**
663	+	* Returns a random non-null TimeUnit.
664	+	*/
665	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
666
667		/**
668	<	* Returns the shortest timed delay. This could
669	<	* be reimplemented to use for example a Property.
668	>	* Returns the shortest timed delay. This can be scaled up for
669	>	* slow machines using the jsr166.delay.factor system property,
670	>	* or via jtreg's -timeoutFactor: flag.
671	>	* http://openjdk.java.net/jtreg/command-help.html
672		*/
673		protected long getShortDelay() {
674	<	return 50;
674	>	return (long) (50 * delayFactor);
675		}
676
194	–
677		/**
678		* Sets delays as multiples of SHORT_DELAY.
679		*/
680		protected void setDelays() {
681		SHORT_DELAY_MS = getShortDelay();
682	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
682	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
683		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
684	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
684	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
685	>	}
686	>
687	>	private static final long TIMEOUT_DELAY_MS
688	>	= (long) (12.0 * Math.cbrt(delayFactor));
689	>
690	>	/**
691	>	* Returns a timeout in milliseconds to be used in tests that verify
692	>	* that operations block or time out.  We want this to be longer
693	>	* than the OS scheduling quantum, but not too long, so don't scale
694	>	* linearly with delayFactor; we use "crazy" cube root instead.
695	>	*/
696	>	static long timeoutMillis() {
697	>	return TIMEOUT_DELAY_MS;
698		}
699
700		/**
701	<	* Flag set true if any threadAssert methods fail
701	>	* Returns a new Date instance representing a time at least
702	>	* delayMillis milliseconds in the future.
703		*/
704	<	volatile boolean threadFailed;
704	>	Date delayedDate(long delayMillis) {
705	>	// Add 1 because currentTimeMillis is known to round into the past.
706	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
707	>	}
708
709		/**
710	<	* Initializes test to indicate that no thread assertions have failed
710	>	* The first exception encountered if any threadAssertXXX method fails.
711		*/
712	+	private final AtomicReference<Throwable> threadFailure
713	+	= new AtomicReference<>(null);
714	+
715	+	/**
716	+	* Records an exception so that it can be rethrown later in the test
717	+	* harness thread, triggering a test case failure.  Only the first
718	+	* failure is recorded; subsequent calls to this method from within
719	+	* the same test have no effect.
720	+	*/
721	+	public void threadRecordFailure(Throwable t) {
722	+	System.err.println(t);
723	+	dumpTestThreads();
724	+	threadFailure.compareAndSet(null, t);
725	+	}
726	+
727		public void setUp() {
728		setDelays();
729	<	threadFailed = false;
729	>	}
730	>
731	>	void tearDownFail(String format, Object... args) {
732	>	String msg = toString() + ": " + String.format(format, args);
733	>	System.err.println(msg);
734	>	dumpTestThreads();
735	>	throw new AssertionError(msg);
736		}
737
738		/**
739	<	* Triggers test case failure if any thread assertions have failed
740	<	*/
741	<	public void tearDown() {
742	<	assertFalse(threadFailed);
739	>	* Extra checks that get done for all test cases.
740	>	*
741	>	* Triggers test case failure if any thread assertions have failed,
742	>	* by rethrowing, in the test harness thread, any exception recorded
743	>	* earlier by threadRecordFailure.
744	>	*
745	>	* Triggers test case failure if interrupt status is set in the main thread.
746	>	*/
747	>	public void tearDown() throws Exception {
748	>	Throwable t = threadFailure.getAndSet(null);
749	>	if (t != null) {
750	>	if (t instanceof Error)
751	>	throw (Error) t;
752	>	else if (t instanceof RuntimeException)
753	>	throw (RuntimeException) t;
754	>	else if (t instanceof Exception)
755	>	throw (Exception) t;
756	>	else
757	>	throw new AssertionError(t.toString(), t);
758	>	}
759	>
760	>	if (Thread.interrupted())
761	>	tearDownFail("interrupt status set in main thread");
762	>
763	>	checkForkJoinPoolThreadLeaks();
764	>	}
765	>
766	>	/**
767	>	* Finds missing PoolCleaners
768	>	*/
769	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
770	>	Thread[] survivors = new Thread[7];
771	>	int count = Thread.enumerate(survivors);
772	>	for (int i = 0; i < count; i++) {
773	>	Thread thread = survivors[i];
774	>	String name = thread.getName();
775	>	if (name.startsWith("ForkJoinPool-")) {
776	>	// give thread some time to terminate
777	>	thread.join(LONG_DELAY_MS);
778	>	if (thread.isAlive())
779	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
780	>	thread);
781	>	}
782	>	}
783	>
784	>	if (!ForkJoinPool.commonPool()
785	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
786	>	tearDownFail("ForkJoin common pool thread stuck");
787		}
788
789		/**
790	<	* Fail, also setting status to indicate current testcase should fail
790	>	* Just like fail(reason), but additionally recording (using
791	>	* threadRecordFailure) any AssertionError thrown, so that the
792	>	* current testcase will fail.
793		*/
794		public void threadFail(String reason) {
795	<	threadFailed = true;
796	<	fail(reason);
795	>	try {
796	>	fail(reason);
797	>	} catch (AssertionError fail) {
798	>	threadRecordFailure(fail);
799	>	throw fail;
800	>	}
801		}
802
803		/**
804	<	* If expression not true, set status to indicate current testcase
805	<	* should fail
804	>	* Just like assertTrue(b), but additionally recording (using
805	>	* threadRecordFailure) any AssertionError thrown, so that the
806	>	* current testcase will fail.
807		*/
808		public void threadAssertTrue(boolean b) {
809	<	if (!b) {
239	<	threadFailed = true;
809	>	try {
810		assertTrue(b);
811	+	} catch (AssertionError fail) {
812	+	threadRecordFailure(fail);
813	+	throw fail;
814		}
815		}
816
817		/**
818	<	* If expression not false, set status to indicate current testcase
819	<	* should fail
818	>	* Just like assertFalse(b), but additionally recording (using
819	>	* threadRecordFailure) any AssertionError thrown, so that the
820	>	* current testcase will fail.
821		*/
822		public void threadAssertFalse(boolean b) {
823	<	if (b) {
250	<	threadFailed = true;
823	>	try {
824		assertFalse(b);
825	+	} catch (AssertionError fail) {
826	+	threadRecordFailure(fail);
827	+	throw fail;
828		}
829		}
830
831		/**
832	<	* If argument not null, set status to indicate current testcase
833	<	* should fail
832	>	* Just like assertNull(x), but additionally recording (using
833	>	* threadRecordFailure) any AssertionError thrown, so that the
834	>	* current testcase will fail.
835		*/
836		public void threadAssertNull(Object x) {
837	<	if (x != null) {
261	<	threadFailed = true;
837	>	try {
838		assertNull(x);
839	+	} catch (AssertionError fail) {
840	+	threadRecordFailure(fail);
841	+	throw fail;
842		}
843		}
844
845		/**
846	<	* If arguments not equal, set status to indicate current testcase
847	<	* should fail
846	>	* Just like assertEquals(x, y), but additionally recording (using
847	>	* threadRecordFailure) any AssertionError thrown, so that the
848	>	* current testcase will fail.
849		*/
850		public void threadAssertEquals(long x, long y) {
851	<	if (x != y) {
272	<	threadFailed = true;
851	>	try {
852		assertEquals(x, y);
853	+	} catch (AssertionError fail) {
854	+	threadRecordFailure(fail);
855	+	throw fail;
856		}
857		}
858
859		/**
860	<	* If arguments not equal, set status to indicate current testcase
861	<	* should fail
860	>	* Just like assertEquals(x, y), but additionally recording (using
861	>	* threadRecordFailure) any AssertionError thrown, so that the
862	>	* current testcase will fail.
863		*/
864		public void threadAssertEquals(Object x, Object y) {
865	<	if (x != y && (x == null || !x.equals(y))) {
283	<	threadFailed = true;
865	>	try {
866		assertEquals(x, y);
867	+	} catch (AssertionError fail) {
868	+	threadRecordFailure(fail);
869	+	throw fail;
870	+	} catch (Throwable fail) {
871	+	threadUnexpectedException(fail);
872	+	}
873	+	}
874	+
875	+	/**
876	+	* Just like assertSame(x, y), but additionally recording (using
877	+	* threadRecordFailure) any AssertionError thrown, so that the
878	+	* current testcase will fail.
879	+	*/
880	+	public void threadAssertSame(Object x, Object y) {
881	+	try {
882	+	assertSame(x, y);
883	+	} catch (AssertionError fail) {
884	+	threadRecordFailure(fail);
885	+	throw fail;
886		}
887		}
888
889		/**
890	<	* threadFail with message "should throw exception"
890	>	* Calls threadFail with message "should throw exception".
891		*/
892		public void threadShouldThrow() {
893	<	threadFailed = true;
293	<	fail("should throw exception");
893	>	threadFail("should throw exception");
894		}
895
896		/**
897	<	* threadFail with message "should throw" + exceptionName
897	>	* Calls threadFail with message "should throw" + exceptionName.
898		*/
899		public void threadShouldThrow(String exceptionName) {
900	<	threadFailed = true;
301	<	fail("should throw " + exceptionName);
900	>	threadFail("should throw " + exceptionName);
901		}
902
903		/**
904	<	* threadFail with message "Unexpected exception"
904	>	* Records the given exception using {@link #threadRecordFailure},
905	>	* then rethrows the exception, wrapping it in an AssertionError
906	>	* if necessary.
907		*/
908	<	public void threadUnexpectedException() {
909	<	threadFailed = true;
910	<	fail("Unexpected exception");
908	>	public void threadUnexpectedException(Throwable t) {
909	>	threadRecordFailure(t);
910	>	t.printStackTrace();
911	>	if (t instanceof RuntimeException)
912	>	throw (RuntimeException) t;
913	>	else if (t instanceof Error)
914	>	throw (Error) t;
915	>	else
916	>	throw new AssertionError("unexpected exception: " + t, t);
917		}
918
919		/**
920	<	* threadFail with message "Unexpected exception", with argument
920	>	* Delays, via Thread.sleep, for the given millisecond delay, but
921	>	* if the sleep is shorter than specified, may re-sleep or yield
922	>	* until time elapses.  Ensures that the given time, as measured
923	>	* by System.nanoTime(), has elapsed.
924		*/
925	<	public void threadUnexpectedException(Throwable ex) {
926	<	threadFailed = true;
927	<	ex.printStackTrace();
928	<	fail("Unexpected exception: " + ex);
925	>	static void delay(long millis) throws InterruptedException {
926	>	long nanos = millis * (1000 * 1000);
927	>	final long wakeupTime = System.nanoTime() + nanos;
928	>	do {
929	>	if (millis > 0L)
930	>	Thread.sleep(millis);
931	>	else // too short to sleep
932	>	Thread.yield();
933	>	nanos = wakeupTime - System.nanoTime();
934	>	millis = nanos / (1000 * 1000);
935	>	} while (nanos >= 0L);
936		}
937
938		/**
939	<	* Wait out termination of a thread pool or fail doing so
939	>	* Allows use of try-with-resources with per-test thread pools.
940		*/
941	<	public void joinPool(ExecutorService exec) {
941	>	class PoolCleaner implements AutoCloseable {
942	>	private final ExecutorService pool;
943	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
944	>	public void close() { joinPool(pool); }
945	>	}
946	>
947	>	/**
948	>	* An extension of PoolCleaner that has an action to release the pool.
949	>	*/
950	>	class PoolCleanerWithReleaser extends PoolCleaner {
951	>	private final Runnable releaser;
952	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
953	>	super(pool);
954	>	this.releaser = releaser;
955	>	}
956	>	public void close() {
957	>	try {
958	>	releaser.run();
959	>	} finally {
960	>	super.close();
961	>	}
962	>	}
963	>	}
964	>
965	>	PoolCleaner cleaner(ExecutorService pool) {
966	>	return new PoolCleaner(pool);
967	>	}
968	>
969	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
970	>	return new PoolCleanerWithReleaser(pool, releaser);
971	>	}
972	>
973	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
974	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
975	>	}
976	>
977	>	Runnable releaser(final CountDownLatch latch) {
978	>	return new Runnable() { public void run() {
979	>	do { latch.countDown(); }
980	>	while (latch.getCount() > 0);
981	>	}};
982	>	}
983	>
984	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
985	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
986	>	}
987	>
988	>	Runnable releaser(final AtomicBoolean flag) {
989	>	return new Runnable() { public void run() { flag.set(true); }};
990	>	}
991	>
992	>	/**
993	>	* Waits out termination of a thread pool or fails doing so.
994	>	*/
995	>	void joinPool(ExecutorService pool) {
996		try {
997	<	exec.shutdown();
998	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
997	>	pool.shutdown();
998	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
999	>	try {
1000	>	threadFail("ExecutorService " + pool +
1001	>	" did not terminate in a timely manner");
1002	>	} finally {
1003	>	// last resort, for the benefit of subsequent tests
1004	>	pool.shutdownNow();
1005	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1006	>	}
1007	>	}
1008		} catch (SecurityException ok) {
1009		// Allowed in case test doesn't have privs
1010	<	} catch (InterruptedException ie) {
1011	<	fail("Unexpected InterruptedException");
1010	>	} catch (InterruptedException fail) {
1011	>	threadFail("Unexpected InterruptedException");
1012		}
1013		}
1014
1015	+	/**
1016	+	* Like Runnable, but with the freedom to throw anything.
1017	+	* junit folks had the same idea:
1018	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1019	+	*/
1020	+	interface Action { public void run() throws Throwable; }
1021
1022		/**
1023	<	* fail with message "should throw exception"
1023	>	* Runs all the given actions in parallel, failing if any fail.
1024	>	* Useful for running multiple variants of tests that are
1025	>	* necessarily individually slow because they must block.
1026		*/
1027	<	public void shouldThrow() {
1028	<	fail("Should throw exception");
1027	>	void testInParallel(Action ... actions) {
1028	>	ExecutorService pool = Executors.newCachedThreadPool();
1029	>	try (PoolCleaner cleaner = cleaner(pool)) {
1030	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1031	>	for (final Action action : actions)
1032	>	futures.add(pool.submit(new CheckedRunnable() {
1033	>	public void realRun() throws Throwable { action.run();}}));
1034	>	for (Future<?> future : futures)
1035	>	try {
1036	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1037	>	} catch (ExecutionException ex) {
1038	>	threadUnexpectedException(ex.getCause());
1039	>	} catch (Exception ex) {
1040	>	threadUnexpectedException(ex);
1041	>	}
1042	>	}
1043		}
1044
1045		/**
1046	<	* fail with message "should throw " + exceptionName
1046	>	* A debugging tool to print stack traces of most threads, as jstack does.
1047	>	* Uninteresting threads are filtered out.
1048		*/
1049	<	public void shouldThrow(String exceptionName) {
1050	<	fail("Should throw " + exceptionName);
1049	>	static void dumpTestThreads() {
1050	>	SecurityManager sm = System.getSecurityManager();
1051	>	if (sm != null) {
1052	>	try {
1053	>	System.setSecurityManager(null);
1054	>	} catch (SecurityException giveUp) {
1055	>	return;
1056	>	}
1057	>	}
1058	>
1059	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1060	>	System.err.println("------ stacktrace dump start ------");
1061	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1062	>	final String name = info.getThreadName();
1063	>	String lockName;
1064	>	if ("Signal Dispatcher".equals(name))
1065	>	continue;
1066	>	if ("Reference Handler".equals(name)
1067	>	&& (lockName = info.getLockName()) != null
1068	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1069	>	continue;
1070	>	if ("Finalizer".equals(name)
1071	>	&& (lockName = info.getLockName()) != null
1072	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1073	>	continue;
1074	>	if ("checkForWedgedTest".equals(name))
1075	>	continue;
1076	>	System.err.print(info);
1077	>	}
1078	>	System.err.println("------ stacktrace dump end ------");
1079	>
1080	>	if (sm != null) System.setSecurityManager(sm);
1081	>	}
1082	>
1083	>	/**
1084	>	* Checks that thread eventually enters the expected blocked thread state.
1085	>	*/
1086	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1087	>	// always sleep at least 1 ms, with high probability avoiding
1088	>	// transitory states
1089	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1090	>	try { delay(1); }
1091	>	catch (InterruptedException fail) {
1092	>	fail("Unexpected InterruptedException");
1093	>	}
1094	>	Thread.State s = thread.getState();
1095	>	if (s == expected)
1096	>	return;
1097	>	else if (s == Thread.State.TERMINATED)
1098	>	fail("Unexpected thread termination");
1099	>	}
1100	>	fail("timed out waiting for thread to enter thread state " + expected);
1101		}
1102
1103		/**
1104	<	* fail with message "Unexpected exception"
1104	>	* Checks that future.get times out, with the default timeout of
1105	>	* {@code timeoutMillis()}.
1106		*/
1107	<	public void unexpectedException() {
1108	<	fail("Unexpected exception");
1107	>	void assertFutureTimesOut(Future future) {
1108	>	assertFutureTimesOut(future, timeoutMillis());
1109		}
1110
1111		/**
1112	<	* fail with message "Unexpected exception", with argument
1112	>	* Checks that future.get times out, with the given millisecond timeout.
1113		*/
1114	<	public void unexpectedException(Throwable ex) {
1115	<	ex.printStackTrace();
1116	<	fail("Unexpected exception: " + ex);
1114	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
1115	>	long startTime = System.nanoTime();
1116	>	try {
1117	>	future.get(timeoutMillis, MILLISECONDS);
1118	>	shouldThrow();
1119	>	} catch (TimeoutException success) {
1120	>	} catch (Exception fail) {
1121	>	threadUnexpectedException(fail);
1122	>	} finally { future.cancel(true); }
1123	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1124		}
1125
1126	+	/**
1127	+	* Fails with message "should throw exception".
1128	+	*/
1129	+	public void shouldThrow() {
1130	+	fail("Should throw exception");
1131	+	}
1132	+
1133	+	/**
1134	+	* Fails with message "should throw " + exceptionName.
1135	+	*/
1136	+	public void shouldThrow(String exceptionName) {
1137	+	fail("Should throw " + exceptionName);
1138	+	}
1139	+
1140	+	/**
1141	+	* The maximum number of consecutive spurious wakeups we should
1142	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1143	+	*/
1144	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1145
1146		/**
1147		* The number of elements to place in collections, arrays, etc.
#	Line 388 | Line 1168 | public class JSR166TestCase extends Test
1168		public static final Integer m6  = new Integer(-6);
1169		public static final Integer m10 = new Integer(-10);
1170
1171	+	/**
1172	+	* Runs Runnable r with a security policy that permits precisely
1173	+	* the specified permissions.  If there is no current security
1174	+	* manager, the runnable is run twice, both with and without a
1175	+	* security manager.  We require that any security manager permit
1176	+	* getPolicy/setPolicy.
1177	+	*/
1178	+	public void runWithPermissions(Runnable r, Permission... permissions) {
1179	+	SecurityManager sm = System.getSecurityManager();
1180	+	if (sm == null) {
1181	+	r.run();
1182	+	}
1183	+	runWithSecurityManagerWithPermissions(r, permissions);
1184	+	}
1185	+
1186	+	/**
1187	+	* Runs Runnable r with a security policy that permits precisely
1188	+	* the specified permissions.  If there is no current security
1189	+	* manager, a temporary one is set for the duration of the
1190	+	* Runnable.  We require that any security manager permit
1191	+	* getPolicy/setPolicy.
1192	+	*/
1193	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1194	+	Permission... permissions) {
1195	+	SecurityManager sm = System.getSecurityManager();
1196	+	if (sm == null) {
1197	+	Policy savedPolicy = Policy.getPolicy();
1198	+	try {
1199	+	Policy.setPolicy(permissivePolicy());
1200	+	System.setSecurityManager(new SecurityManager());
1201	+	runWithSecurityManagerWithPermissions(r, permissions);
1202	+	} finally {
1203	+	System.setSecurityManager(null);
1204	+	Policy.setPolicy(savedPolicy);
1205	+	}
1206	+	} else {
1207	+	Policy savedPolicy = Policy.getPolicy();
1208	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1209	+	Policy.setPolicy(policy);
1210	+
1211	+	try {
1212	+	r.run();
1213	+	} finally {
1214	+	policy.addPermission(new SecurityPermission("setPolicy"));
1215	+	Policy.setPolicy(savedPolicy);
1216	+	}
1217	+	}
1218	+	}
1219	+
1220	+	/**
1221	+	* Runs a runnable without any permissions.
1222	+	*/
1223	+	public void runWithoutPermissions(Runnable r) {
1224	+	runWithPermissions(r);
1225	+	}
1226
1227		/**
1228		* A security policy where new permissions can be dynamically added
#	Line 395 | Line 1230 | public class JSR166TestCase extends Test
1230		*/
1231		public static class AdjustablePolicy extends java.security.Policy {
1232		Permissions perms = new Permissions();
1233	<	AdjustablePolicy() { }
1233	>	AdjustablePolicy(Permission... permissions) {
1234	>	for (Permission permission : permissions)
1235	>	perms.add(permission);
1236	>	}
1237		void addPermission(Permission perm) { perms.add(perm); }
1238		void clearPermissions() { perms = new Permissions(); }
1239		public PermissionCollection getPermissions(CodeSource cs) {
#	Line 408 | Line 1246 | public class JSR166TestCase extends Test
1246		return perms.implies(p);
1247		}
1248		public void refresh() {}
1249	+	public String toString() {
1250	+	List<Permission> ps = new ArrayList<>();
1251	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1252	+	ps.add(e.nextElement());
1253	+	return "AdjustablePolicy with permissions " + ps;
1254	+	}
1255	+	}
1256	+
1257	+	/**
1258	+	* Returns a policy containing all the permissions we ever need.
1259	+	*/
1260	+	public static Policy permissivePolicy() {
1261	+	return new AdjustablePolicy
1262	+	// Permissions j.u.c. needs directly
1263	+	(new RuntimePermission("modifyThread"),
1264	+	new RuntimePermission("getClassLoader"),
1265	+	new RuntimePermission("setContextClassLoader"),
1266	+	// Permissions needed to change permissions!
1267	+	new SecurityPermission("getPolicy"),
1268	+	new SecurityPermission("setPolicy"),
1269	+	new RuntimePermission("setSecurityManager"),
1270	+	// Permissions needed by the junit test harness
1271	+	new RuntimePermission("accessDeclaredMembers"),
1272	+	new PropertyPermission("*", "read"),
1273	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
1274		}
1275
1276		/**
1277	<	* Sleep until the timeout has elapsed, or interrupted.
1278	<	* Does <em>NOT</em> throw InterruptedException.
1277	>	* Sleeps until the given time has elapsed.
1278	>	* Throws AssertionError if interrupted.
1279		*/
1280	<	void sleepTillInterrupted(long timeoutMillis) {
1280	>	static void sleep(long millis) {
1281		try {
1282	<	Thread.sleep(timeoutMillis);
1283	<	} catch (InterruptedException wakeup) {}
1282	>	delay(millis);
1283	>	} catch (InterruptedException fail) {
1284	>	throw new AssertionError("Unexpected InterruptedException", fail);
1285	>	}
1286	>	}
1287	>
1288	>	/**
1289	>	* Spin-waits up to the specified number of milliseconds for the given
1290	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1291	>	*/
1292	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1293	>	long startTime = 0L;
1294	>	for (;;) {
1295	>	Thread.State s = thread.getState();
1296	>	if (s == Thread.State.BLOCKED ||
1297	>	s == Thread.State.WAITING ||
1298	>	s == Thread.State.TIMED_WAITING)
1299	>	return;
1300	>	else if (s == Thread.State.TERMINATED)
1301	>	fail("Unexpected thread termination");
1302	>	else if (startTime == 0L)
1303	>	startTime = System.nanoTime();
1304	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1305	>	threadAssertTrue(thread.isAlive());
1306	>	fail("timed out waiting for thread to enter wait state");
1307	>	}
1308	>	Thread.yield();
1309	>	}
1310	>	}
1311	>
1312	>	/**
1313	>	* Spin-waits up to the specified number of milliseconds for the given
1314	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1315	>	* and additionally satisfy the given condition.
1316	>	*/
1317	>	void waitForThreadToEnterWaitState(
1318	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1319	>	long startTime = 0L;
1320	>	for (;;) {
1321	>	Thread.State s = thread.getState();
1322	>	if (s == Thread.State.BLOCKED ||
1323	>	s == Thread.State.WAITING ||
1324	>	s == Thread.State.TIMED_WAITING) {
1325	>	try {
1326	>	if (waitingForGodot.call())
1327	>	return;
1328	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1329	>	}
1330	>	else if (s == Thread.State.TERMINATED)
1331	>	fail("Unexpected thread termination");
1332	>	else if (startTime == 0L)
1333	>	startTime = System.nanoTime();
1334	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1335	>	threadAssertTrue(thread.isAlive());
1336	>	fail("timed out waiting for thread to enter wait state");
1337	>	}
1338	>	Thread.yield();
1339	>	}
1340		}
1341
1342		/**
1343	<	* Returns a new started Thread running the given runnable.
1343	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1344	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1345	>	*/
1346	>	void waitForThreadToEnterWaitState(Thread thread) {
1347	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1348	>	}
1349	>
1350	>	/**
1351	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1352	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1353	>	* and additionally satisfy the given condition.
1354	>	*/
1355	>	void waitForThreadToEnterWaitState(
1356	>	Thread thread, Callable<Boolean> waitingForGodot) {
1357	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1358	>	}
1359	>
1360	>	/**
1361	>	* Returns the number of milliseconds since time given by
1362	>	* startNanoTime, which must have been previously returned from a
1363	>	* call to {@link System#nanoTime()}.
1364	>	*/
1365	>	static long millisElapsedSince(long startNanoTime) {
1366	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1367	>	}
1368	>
1369	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1370	>	//         long startTime = System.nanoTime();
1371	>	//         try {
1372	>	//             r.run();
1373	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1374	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1375	>	//             throw new AssertionError("did not return promptly");
1376	>	//     }
1377	>
1378	>	//     void assertTerminatesPromptly(Runnable r) {
1379	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1380	>	//     }
1381	>
1382	>	/**
1383	>	* Checks that timed f.get() returns the expected value, and does not
1384	>	* wait for the timeout to elapse before returning.
1385	>	*/
1386	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1387	>	long startTime = System.nanoTime();
1388	>	try {
1389	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1390	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1391	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1392	>	throw new AssertionError("timed get did not return promptly");
1393	>	}
1394	>
1395	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1396	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1397	>	}
1398	>
1399	>	/**
1400	>	* Returns a new started daemon Thread running the given runnable.
1401		*/
1402		Thread newStartedThread(Runnable runnable) {
1403		Thread t = new Thread(runnable);
1404	+	t.setDaemon(true);
1405		t.start();
1406		return t;
1407		}
1408
1409	+	/**
1410	+	* Waits for the specified time (in milliseconds) for the thread
1411	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1412	+	* the thread (in the hope that it may terminate later) and fails.
1413	+	*/
1414	+	void awaitTermination(Thread t, long timeoutMillis) {
1415	+	try {
1416	+	t.join(timeoutMillis);
1417	+	} catch (InterruptedException fail) {
1418	+	threadUnexpectedException(fail);
1419	+	} finally {
1420	+	if (t.getState() != Thread.State.TERMINATED) {
1421	+	t.interrupt();
1422	+	threadFail("timed out waiting for thread to terminate");
1423	+	}
1424	+	}
1425	+	}
1426	+
1427	+	/**
1428	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1429	+	* terminate (using {@link Thread#join(long)}), else interrupts
1430	+	* the thread (in the hope that it may terminate later) and fails.
1431	+	*/
1432	+	void awaitTermination(Thread t) {
1433	+	awaitTermination(t, LONG_DELAY_MS);
1434	+	}
1435	+
1436		// Some convenient Runnable classes
1437
1438		public abstract class CheckedRunnable implements Runnable {
#	Line 437 | Line 1441 | public class JSR166TestCase extends Test
1441		public final void run() {
1442		try {
1443		realRun();
1444	<	} catch (Throwable t) {
1445	<	threadUnexpectedException(t);
1444	>	} catch (Throwable fail) {
1445	>	threadUnexpectedException(fail);
1446		}
1447		}
1448		}
#	Line 491 | Line 1495 | public class JSR166TestCase extends Test
1495		realRun();
1496		threadShouldThrow("InterruptedException");
1497		} catch (InterruptedException success) {
1498	<	} catch (Throwable t) {
1499	<	threadUnexpectedException(t);
1498	>	threadAssertFalse(Thread.interrupted());
1499	>	} catch (Throwable fail) {
1500	>	threadUnexpectedException(fail);
1501		}
1502		}
1503		}
#	Line 503 | Line 1508 | public class JSR166TestCase extends Test
1508		public final T call() {
1509		try {
1510		return realCall();
1511	<	} catch (Throwable t) {
1512	<	threadUnexpectedException(t);
1511	>	} catch (Throwable fail) {
1512	>	threadUnexpectedException(fail);
1513	>	return null;
1514		}
509	–	return null;
1515		}
1516		}
1517
1518	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1518	>	public abstract class CheckedInterruptedCallable<T>
1519	>	implements Callable<T> {
1520		protected abstract T realCall() throws Throwable;
1521
1522		public final T call() {
#	Line 519 | Line 1525 | public class JSR166TestCase extends Test
1525		threadShouldThrow("InterruptedException");
1526		return result;
1527		} catch (InterruptedException success) {
1528	<	} catch (Throwable t) {
1529	<	threadUnexpectedException(t);
1528	>	threadAssertFalse(Thread.interrupted());
1529	>	} catch (Throwable fail) {
1530	>	threadUnexpectedException(fail);
1531		}
1532		return null;
1533		}
#	Line 537 | Line 1544 | public class JSR166TestCase extends Test
1544		public static final String TEST_STRING = "a test string";
1545
1546		public static class StringTask implements Callable<String> {
1547	<	public String call() { return TEST_STRING; }
1547	>	final String value;
1548	>	public StringTask() { this(TEST_STRING); }
1549	>	public StringTask(String value) { this.value = value; }
1550	>	public String call() { return value; }
1551		}
1552
1553		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1554		return new CheckedCallable<String>() {
1555	<	public String realCall() {
1555	>	protected String realCall() {
1556		try {
1557		latch.await();
1558		} catch (InterruptedException quittingTime) {}
#	Line 550 | Line 1560 | public class JSR166TestCase extends Test
1560		}};
1561		}
1562
1563	<	public static class NPETask implements Callable<String> {
1564	<	public String call() { throw new NullPointerException(); }
1563	>	public Runnable countDowner(final CountDownLatch latch) {
1564	>	return new CheckedRunnable() {
1565	>	public void realRun() throws InterruptedException {
1566	>	latch.countDown();
1567	>	}};
1568	>	}
1569	>
1570	>	class LatchAwaiter extends CheckedRunnable {
1571	>	static final int NEW = 0;
1572	>	static final int RUNNING = 1;
1573	>	static final int DONE = 2;
1574	>	final CountDownLatch latch;
1575	>	int state = NEW;
1576	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1577	>	public void realRun() throws InterruptedException {
1578	>	state = 1;
1579	>	await(latch);
1580	>	state = 2;
1581	>	}
1582		}
1583
1584	<	public static class CallableOne implements Callable<Integer> {
1585	<	public Integer call() { return one; }
1584	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1585	>	return new LatchAwaiter(latch);
1586		}
1587
1588	<	public class ShortRunnable extends CheckedRunnable {
1589	<	protected void realRun() throws Throwable {
1590	<	Thread.sleep(SHORT_DELAY_MS);
1588	>	public void await(CountDownLatch latch, long timeoutMillis) {
1589	>	try {
1590	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1591	>	fail("timed out waiting for CountDownLatch for "
1592	>	+ (timeoutMillis/1000) + " sec");
1593	>	} catch (Throwable fail) {
1594	>	threadUnexpectedException(fail);
1595		}
1596		}
1597
1598	<	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1599	<	protected void realRun() throws InterruptedException {
1600	<	Thread.sleep(SHORT_DELAY_MS);
1598	>	public void await(CountDownLatch latch) {
1599	>	await(latch, LONG_DELAY_MS);
1600	>	}
1601	>
1602	>	public void await(Semaphore semaphore) {
1603	>	try {
1604	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1605	>	fail("timed out waiting for Semaphore for "
1606	>	+ (LONG_DELAY_MS/1000) + " sec");
1607	>	} catch (Throwable fail) {
1608	>	threadUnexpectedException(fail);
1609		}
1610		}
1611
1612	<	public class SmallRunnable extends CheckedRunnable {
1613	<	protected void realRun() throws Throwable {
1614	<	Thread.sleep(SMALL_DELAY_MS);
1612	>	public void await(CyclicBarrier barrier) {
1613	>	try {
1614	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1615	>	} catch (Throwable fail) {
1616	>	threadUnexpectedException(fail);
1617		}
1618		}
1619
1620	+	//     /**
1621	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1622	+	//      */
1623	+	//     public void await(AtomicBoolean flag) {
1624	+	//         await(flag, LONG_DELAY_MS);
1625	+	//     }
1626	+
1627	+	//     /**
1628	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1629	+	//      */
1630	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1631	+	//         long startTime = System.nanoTime();
1632	+	//         while (!flag.get()) {
1633	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1634	+	//                 throw new AssertionError("timed out");
1635	+	//             Thread.yield();
1636	+	//         }
1637	+	//     }
1638	+
1639	+	public static class NPETask implements Callable<String> {
1640	+	public String call() { throw new NullPointerException(); }
1641	+	}
1642	+
1643		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1644		protected void realRun() {
1645		try {
1646	<	Thread.sleep(SMALL_DELAY_MS);
1646	>	delay(SMALL_DELAY_MS);
1647		} catch (InterruptedException ok) {}
1648		}
1649		}
1650
1651	<	public class SmallCallable extends CheckedCallable {
1652	<	protected Object realCall() throws InterruptedException {
1653	<	Thread.sleep(SMALL_DELAY_MS);
1654	<	return Boolean.TRUE;
1655	<	}
1651	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1652	>	return new CheckedRunnable() {
1653	>	protected void realRun() {
1654	>	try {
1655	>	delay(timeoutMillis);
1656	>	} catch (InterruptedException ok) {}
1657	>	}};
1658		}
1659
1660	<	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
1661	<	protected void realRun() throws InterruptedException {
1662	<	Thread.sleep(SMALL_DELAY_MS);
1660	>	/**
1661	>	* For use as ThreadFactory in constructors
1662	>	*/
1663	>	public static class SimpleThreadFactory implements ThreadFactory {
1664	>	public Thread newThread(Runnable r) {
1665	>	return new Thread(r);
1666		}
1667		}
1668
1669	<	public class MediumRunnable extends CheckedRunnable {
1670	<	protected void realRun() throws Throwable {
602	<	Thread.sleep(MEDIUM_DELAY_MS);
603	<	}
1669	>	public interface TrackedRunnable extends Runnable {
1670	>	boolean isDone();
1671		}
1672
1673	<	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1674	<	protected void realRun() throws InterruptedException {
1675	<	Thread.sleep(MEDIUM_DELAY_MS);
1673	>	public static class TrackedNoOpRunnable implements Runnable {
1674	>	public volatile boolean done = false;
1675	>	public void run() {
1676	>	done = true;
1677		}
1678		}
1679
1680	<	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1681	<	protected void realRun() {
1680	>	/**
1681	>	* Analog of CheckedRunnable for RecursiveAction
1682	>	*/
1683	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1684	>	protected abstract void realCompute() throws Throwable;
1685	>
1686	>	@Override protected final void compute() {
1687		try {
1688	<	Thread.sleep(MEDIUM_DELAY_MS);
1689	<	} catch (InterruptedException ok) {}
1688	>	realCompute();
1689	>	} catch (Throwable fail) {
1690	>	threadUnexpectedException(fail);
1691	>	}
1692		}
1693		}
1694
1695	<	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1696	<	protected void realRun() {
1695	>	/**
1696	>	* Analog of CheckedCallable for RecursiveTask
1697	>	*/
1698	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1699	>	protected abstract T realCompute() throws Throwable;
1700	>
1701	>	@Override protected final T compute() {
1702		try {
1703	<	Thread.sleep(LONG_DELAY_MS);
1704	<	} catch (InterruptedException ok) {}
1703	>	return realCompute();
1704	>	} catch (Throwable fail) {
1705	>	threadUnexpectedException(fail);
1706	>	return null;
1707	>	}
1708		}
1709		}
1710
1711		/**
1712	<	* For use as ThreadFactory in constructors
1712	>	* For use as RejectedExecutionHandler in constructors
1713		*/
1714	<	public static class SimpleThreadFactory implements ThreadFactory {
1715	<	public Thread newThread(Runnable r) {
1716	<	return new Thread(r);
634	<	}
1714	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1715	>	public void rejectedExecution(Runnable r,
1716	>	ThreadPoolExecutor executor) {}
1717		}
1718
1719	<	public static class TrackedShortRunnable implements Runnable {
1720	<	public volatile boolean done = false;
1721	<	public void run() {
1719	>	/**
1720	>	* A CyclicBarrier that uses timed await and fails with
1721	>	* AssertionErrors instead of throwing checked exceptions.
1722	>	*/
1723	>	public static class CheckedBarrier extends CyclicBarrier {
1724	>	public CheckedBarrier(int parties) { super(parties); }
1725	>
1726	>	public int await() {
1727		try {
1728	<	Thread.sleep(SMALL_DELAY_MS);
1729	<	done = true;
1730	<	} catch (InterruptedException ok) {}
1728	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1729	>	} catch (TimeoutException timedOut) {
1730	>	throw new AssertionError("timed out");
1731	>	} catch (Exception fail) {
1732	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1733	>	}
1734		}
1735		}
1736
1737	<	public static class TrackedMediumRunnable implements Runnable {
1738	<	public volatile boolean done = false;
1739	<	public void run() {
1737	>	void checkEmpty(BlockingQueue q) {
1738	>	try {
1739	>	assertTrue(q.isEmpty());
1740	>	assertEquals(0, q.size());
1741	>	assertNull(q.peek());
1742	>	assertNull(q.poll());
1743	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1744	>	assertEquals(q.toString(), "[]");
1745	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1746	>	assertFalse(q.iterator().hasNext());
1747		try {
1748	<	Thread.sleep(MEDIUM_DELAY_MS);
1749	<	done = true;
1750	<	} catch (InterruptedException ok) {}
1748	>	q.element();
1749	>	shouldThrow();
1750	>	} catch (NoSuchElementException success) {}
1751	>	try {
1752	>	q.iterator().next();
1753	>	shouldThrow();
1754	>	} catch (NoSuchElementException success) {}
1755	>	try {
1756	>	q.remove();
1757	>	shouldThrow();
1758	>	} catch (NoSuchElementException success) {}
1759	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1760	>	}
1761	>
1762	>	void assertSerialEquals(Object x, Object y) {
1763	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1764	>	}
1765	>
1766	>	void assertNotSerialEquals(Object x, Object y) {
1767	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1768	>	}
1769	>
1770	>	byte[] serialBytes(Object o) {
1771	>	try {
1772	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1773	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1774	>	oos.writeObject(o);
1775	>	oos.flush();
1776	>	oos.close();
1777	>	return bos.toByteArray();
1778	>	} catch (Throwable fail) {
1779	>	threadUnexpectedException(fail);
1780	>	return new byte[0];
1781		}
1782		}
1783
1784	<	public static class TrackedLongRunnable implements Runnable {
1785	<	public volatile boolean done = false;
1786	<	public void run() {
1787	<	try {
1788	<	Thread.sleep(LONG_DELAY_MS);
1789	<	done = true;
663	<	} catch (InterruptedException ok) {}
1784	>	void assertImmutable(final Object o) {
1785	>	if (o instanceof Collection) {
1786	>	assertThrows(
1787	>	UnsupportedOperationException.class,
1788	>	new Runnable() { public void run() {
1789	>	((Collection) o).add(null);}});
1790		}
1791		}
1792
1793	<	public static class TrackedNoOpRunnable implements Runnable {
1794	<	public volatile boolean done = false;
1795	<	public void run() {
1796	<	done = true;
1793	>	@SuppressWarnings("unchecked")
1794	>	<T> T serialClone(T o) {
1795	>	try {
1796	>	ObjectInputStream ois = new ObjectInputStream
1797	>	(new ByteArrayInputStream(serialBytes(o)));
1798	>	T clone = (T) ois.readObject();
1799	>	if (o == clone) assertImmutable(o);
1800	>	assertSame(o.getClass(), clone.getClass());
1801	>	return clone;
1802	>	} catch (Throwable fail) {
1803	>	threadUnexpectedException(fail);
1804	>	return null;
1805		}
1806		}
1807
1808	<	public static class TrackedCallable implements Callable {
1809	<	public volatile boolean done = false;
1810	<	public Object call() {
1811	<	try {
1812	<	Thread.sleep(SMALL_DELAY_MS);
1813	<	done = true;
1814	<	} catch (InterruptedException ok) {}
1815	<	return Boolean.TRUE;
1808	>	/**
1809	>	* A version of serialClone that leaves error handling (for
1810	>	* e.g. NotSerializableException) up to the caller.
1811	>	*/
1812	>	@SuppressWarnings("unchecked")
1813	>	<T> T serialClonePossiblyFailing(T o)
1814	>	throws ReflectiveOperationException, java.io.IOException {
1815	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1816	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1817	>	oos.writeObject(o);
1818	>	oos.flush();
1819	>	oos.close();
1820	>	ObjectInputStream ois = new ObjectInputStream
1821	>	(new ByteArrayInputStream(bos.toByteArray()));
1822	>	T clone = (T) ois.readObject();
1823	>	if (o == clone) assertImmutable(o);
1824	>	assertSame(o.getClass(), clone.getClass());
1825	>	return clone;
1826	>	}
1827	>
1828	>	/**
1829	>	* If o implements Cloneable and has a public clone method,
1830	>	* returns a clone of o, else null.
1831	>	*/
1832	>	@SuppressWarnings("unchecked")
1833	>	<T> T cloneableClone(T o) {
1834	>	if (!(o instanceof Cloneable)) return null;
1835	>	final T clone;
1836	>	try {
1837	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1838	>	} catch (NoSuchMethodException ok) {
1839	>	return null;
1840	>	} catch (ReflectiveOperationException unexpected) {
1841	>	throw new Error(unexpected);
1842	>	}
1843	>	assertNotSame(o, clone); // not 100% guaranteed by spec
1844	>	assertSame(o.getClass(), clone.getClass());
1845	>	return clone;
1846	>	}
1847	>
1848	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1849	>	Runnable... throwingActions) {
1850	>	for (Runnable throwingAction : throwingActions) {
1851	>	boolean threw = false;
1852	>	try { throwingAction.run(); }
1853	>	catch (Throwable t) {
1854	>	threw = true;
1855	>	if (!expectedExceptionClass.isInstance(t))
1856	>	throw new AssertionError(
1857	>	"Expected " + expectedExceptionClass.getName() +
1858	>	", got " + t.getClass().getName(),
1859	>	t);
1860	>	}
1861	>	if (!threw)
1862	>	shouldThrow(expectedExceptionClass.getName());
1863		}
1864		}
1865
1866	+	public void assertIteratorExhausted(Iterator<?> it) {
1867	+	try {
1868	+	it.next();
1869	+	shouldThrow();
1870	+	} catch (NoSuchElementException success) {}
1871	+	assertFalse(it.hasNext());
1872	+	}
1873	+
1874	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1875	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1876	+	}
1877	+
1878	+	public Runnable runnableThrowing(final RuntimeException ex) {
1879	+	return new Runnable() { public void run() { throw ex; }};
1880	+	}
1881	+
1882	+	/** A reusable thread pool to be shared by tests. */
1883	+	static final ExecutorService cachedThreadPool =
1884	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1885	+	1000L, MILLISECONDS,
1886	+	new SynchronousQueue<Runnable>());
1887	+
1888	+	static <T> void shuffle(T[] array) {
1889	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1890	+	}
1891
1892		/**
1893	<	* For use as RejectedExecutionHandler in constructors
1893	>	* Returns the same String as would be returned by {@link
1894	>	* Object#toString}, whether or not the given object's class
1895	>	* overrides toString().
1896	>	*
1897	>	* @see System#identityHashCode
1898		*/
1899	<	public static class NoOpREHandler implements RejectedExecutionHandler {
1900	<	public void rejectedExecution(Runnable r,
1901	<	ThreadPoolExecutor executor) {}
1899	>	static String identityString(Object x) {
1900	>	return x.getClass().getName()
1901	>	+ "@" + Integer.toHexString(System.identityHashCode(x));
1902		}
1903
1904	+	// --- Shared assertions for Executor tests ---
1905	+
1906	+	/**
1907	+	* Returns maximum number of tasks that can be submitted to given
1908	+	* pool (with bounded queue) before saturation (when submission
1909	+	* throws RejectedExecutionException).
1910	+	*/
1911	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1912	+	BlockingQueue<Runnable> q = pool.getQueue();
1913	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1914	+	}
1915	+
1916	+	@SuppressWarnings("FutureReturnValueIgnored")
1917	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1918	+	try {
1919	+	e.execute((Runnable) null);
1920	+	shouldThrow();
1921	+	} catch (NullPointerException success) {}
1922	+
1923	+	if (! (e instanceof ExecutorService)) return;
1924	+	ExecutorService es = (ExecutorService) e;
1925	+	try {
1926	+	es.submit((Runnable) null);
1927	+	shouldThrow();
1928	+	} catch (NullPointerException success) {}
1929	+	try {
1930	+	es.submit((Runnable) null, Boolean.TRUE);
1931	+	shouldThrow();
1932	+	} catch (NullPointerException success) {}
1933	+	try {
1934	+	es.submit((Callable) null);
1935	+	shouldThrow();
1936	+	} catch (NullPointerException success) {}
1937	+
1938	+	if (! (e instanceof ScheduledExecutorService)) return;
1939	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1940	+	try {
1941	+	ses.schedule((Runnable) null,
1942	+	randomTimeout(), randomTimeUnit());
1943	+	shouldThrow();
1944	+	} catch (NullPointerException success) {}
1945	+	try {
1946	+	ses.schedule((Callable) null,
1947	+	randomTimeout(), randomTimeUnit());
1948	+	shouldThrow();
1949	+	} catch (NullPointerException success) {}
1950	+	try {
1951	+	ses.scheduleAtFixedRate((Runnable) null,
1952	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1953	+	shouldThrow();
1954	+	} catch (NullPointerException success) {}
1955	+	try {
1956	+	ses.scheduleWithFixedDelay((Runnable) null,
1957	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1958	+	shouldThrow();
1959	+	} catch (NullPointerException success) {}
1960	+	}
1961	+
1962	+	void setRejectedExecutionHandler(
1963	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1964	+	p.setRejectedExecutionHandler(handler);
1965	+	assertSame(handler, p.getRejectedExecutionHandler());
1966	+	}
1967	+
1968	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1969	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1970	+	final long savedTaskCount = p.getTaskCount();
1971	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1972	+	final int savedQueueSize = p.getQueue().size();
1973	+	final boolean stock = (p.getClass().getClassLoader() == null);
1974	+
1975	+	Runnable r = () -> {};
1976	+	Callable<Boolean> c = () -> Boolean.TRUE;
1977	+
1978	+	class Recorder implements RejectedExecutionHandler {
1979	+	public volatile Runnable r = null;
1980	+	public volatile ThreadPoolExecutor p = null;
1981	+	public void reset() { r = null; p = null; }
1982	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1983	+	assertNull(this.r);
1984	+	assertNull(this.p);
1985	+	this.r = r;
1986	+	this.p = p;
1987	+	}
1988	+	}
1989	+
1990	+	// check custom handler is invoked exactly once per task
1991	+	Recorder recorder = new Recorder();
1992	+	setRejectedExecutionHandler(p, recorder);
1993	+	for (int i = 2; i--> 0; ) {
1994	+	recorder.reset();
1995	+	p.execute(r);
1996	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1997	+	assertSame(r, recorder.r);
1998	+	assertSame(p, recorder.p);
1999	+
2000	+	recorder.reset();
2001	+	assertFalse(p.submit(r).isDone());
2002	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2003	+	assertSame(p, recorder.p);
2004	+
2005	+	recorder.reset();
2006	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2007	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2008	+	assertSame(p, recorder.p);
2009	+
2010	+	recorder.reset();
2011	+	assertFalse(p.submit(c).isDone());
2012	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2013	+	assertSame(p, recorder.p);
2014	+
2015	+	if (p instanceof ScheduledExecutorService) {
2016	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2017	+	ScheduledFuture<?> future;
2018	+
2019	+	recorder.reset();
2020	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2021	+	assertFalse(future.isDone());
2022	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2023	+	assertSame(p, recorder.p);
2024	+
2025	+	recorder.reset();
2026	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2027	+	assertFalse(future.isDone());
2028	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2029	+	assertSame(p, recorder.p);
2030	+
2031	+	recorder.reset();
2032	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2033	+	assertFalse(future.isDone());
2034	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2035	+	assertSame(p, recorder.p);
2036	+
2037	+	recorder.reset();
2038	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2039	+	assertFalse(future.isDone());
2040	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2041	+	assertSame(p, recorder.p);
2042	+	}
2043	+	}
2044	+
2045	+	// Checking our custom handler above should be sufficient, but
2046	+	// we add some integration tests of standard handlers.
2047	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2048	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2049	+
2050	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2051	+	try {
2052	+	p.execute(setThread);
2053	+	shouldThrow();
2054	+	} catch (RejectedExecutionException success) {}
2055	+	assertNull(thread.get());
2056	+
2057	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2058	+	p.execute(setThread);
2059	+	assertNull(thread.get());
2060	+
2061	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2062	+	p.execute(setThread);
2063	+	if (p.isShutdown())
2064	+	assertNull(thread.get());
2065	+	else
2066	+	assertSame(Thread.currentThread(), thread.get());
2067	+
2068	+	setRejectedExecutionHandler(p, savedHandler);
2069	+
2070	+	// check that pool was not perturbed by handlers
2071	+	assertEquals(savedTaskCount, p.getTaskCount());
2072	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2073	+	assertEquals(savedQueueSize, p.getQueue().size());
2074	+	}
2075		}

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