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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.46 by jsr166, Tue Dec 1 05:41:40 2009 UTC vs.
Revision 1.218 by jsr166, Sun Jan 29 20:19:00 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
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.*;
11	<	import java.util.concurrent.*;
9	>	/*
10	>	* @test
11	>	* @summary JSR-166 tck tests (conformance testing mode)
12	>	* @build *
13	>	* @modules java.management
14	>	* @run junit/othervm/timeout=1000 JSR166TestCase
15	>	*/
16	>
17	>	/*
18	>	* @test
19	>	* @summary JSR-166 tck tests (whitebox tests allowed)
20	>	* @build *
21	>	* @modules java.base/java.util.concurrent:open
22	>	*          java.base/java.lang:open
23	>	*          java.management
24	>	* @run junit/othervm/timeout=1000
25	>	*      -Djsr166.testImplementationDetails=true
26	>	*      JSR166TestCase
27	>	* @run junit/othervm/timeout=1000
28	>	*      -Djsr166.testImplementationDetails=true
29	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
30	>	*      JSR166TestCase
31	>	* @run junit/othervm/timeout=1000
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	>	*      -Djsr166.testImplementationDetails=true
38	>	*      JSR166TestCase
39	>	*/
40	>
41		import static java.util.concurrent.TimeUnit.MILLISECONDS;
42	<	import java.io.*;
43	<	import java.security.*;
42	>	import static java.util.concurrent.TimeUnit.MINUTES;
43	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
44	>
45	>	import java.io.ByteArrayInputStream;
46	>	import java.io.ByteArrayOutputStream;
47	>	import java.io.ObjectInputStream;
48	>	import java.io.ObjectOutputStream;
49	>	import java.lang.management.ManagementFactory;
50	>	import java.lang.management.ThreadInfo;
51	>	import java.lang.management.ThreadMXBean;
52	>	import java.lang.reflect.Constructor;
53	>	import java.lang.reflect.Method;
54	>	import java.lang.reflect.Modifier;
55	>	import java.nio.file.Files;
56	>	import java.nio.file.Paths;
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.Executors;
80	>	import java.util.concurrent.ExecutorService;
81	>	import java.util.concurrent.ForkJoinPool;
82	>	import java.util.concurrent.Future;
83	>	import java.util.concurrent.RecursiveAction;
84	>	import java.util.concurrent.RecursiveTask;
85	>	import java.util.concurrent.RejectedExecutionHandler;
86	>	import java.util.concurrent.Semaphore;
87	>	import java.util.concurrent.SynchronousQueue;
88	>	import java.util.concurrent.ThreadFactory;
89	>	import java.util.concurrent.ThreadLocalRandom;
90	>	import java.util.concurrent.ThreadPoolExecutor;
91	>	import java.util.concurrent.TimeoutException;
92	>	import java.util.concurrent.atomic.AtomicBoolean;
93	>	import java.util.concurrent.atomic.AtomicReference;
94	>	import java.util.regex.Matcher;
95	>	import java.util.regex.Pattern;
96	>
97	>	import junit.framework.AssertionFailedError;
98	>	import junit.framework.Test;
99	>	import junit.framework.TestCase;
100	>	import junit.framework.TestResult;
101	>	import junit.framework.TestSuite;
102
103		/**
104		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 110 | import java.security.*;
110		*
111		* <ol>
112		*
113	<	* <li> All assertions in code running in generated threads must use
113	>	* <li>All assertions in code running in generated threads must use
114		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
115		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
116	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
116	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
117		* particularly recommended) for other code to use these forms too.
118		* Only the most typically used JUnit assertion methods are defined
119	<	* this way, but enough to live with.</li>
119	>	* this way, but enough to live with.
120		*
121	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
122	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
121	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
122	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
123		* them. These methods are used to clear and check for thread
124	<	* assertion failures.</li>
124	>	* assertion failures.
125		*
126	<	* <li>All delays and timeouts must use one of the constants <tt>
127	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
128	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
126	>	* <li>All delays and timeouts must use one of the constants {@code
127	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
128	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
129		* discriminable from zero time, and always allows enough time for the
130		* small amounts of computation (creating a thread, calling a few
131		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
132		* is always discriminable as larger than SHORT and smaller than
133		* MEDIUM.  And so on. These constants are set to conservative values,
134		* but even so, if there is ever any doubt, they can all be increased
135	<	* in one spot to rerun tests on slower platforms.</li>
135	>	* in one spot to rerun tests on slower platforms.
136		*
137	<	* <li> All threads generated must be joined inside each test case
138	<	* method (or <tt>fail</tt> to do so) before returning from the
139	<	* method. The <tt> joinPool</tt> method can be used to do this when
140	<	* using Executors.</li>
137	>	* <li>All threads generated must be joined inside each test case
138	>	* method (or {@code fail} to do so) before returning from the
139	>	* method. The {@code joinPool} method can be used to do this when
140	>	* using Executors.
141		*
142		* </ol>
143		*
144	<	* <p> <b>Other notes</b>
144	>	* <p><b>Other notes</b>
145		* <ul>
146		*
147	<	* <li> Usually, there is one testcase method per JSR166 method
147	>	* <li>Usually, there is one testcase method per JSR166 method
148		* covering "normal" operation, and then as many exception-testing
149		* methods as there are exceptions the method can throw. Sometimes
150		* there are multiple tests per JSR166 method when the different
151		* "normal" behaviors differ significantly. And sometimes testcases
152	<	* cover multiple methods when they cannot be tested in
66	<	* isolation.</li>
152	>	* cover multiple methods when they cannot be tested in isolation.
153		*
154	<	* <li> The documentation style for testcases is to provide as javadoc
154	>	* <li>The documentation style for testcases is to provide as javadoc
155		* a simple sentence or two describing the property that the testcase
156		* method purports to test. The javadocs do not say anything about how
157	<	* the property is tested. To find out, read the code.</li>
157	>	* the property is tested. To find out, read the code.
158		*
159	<	* <li> These tests are "conformance tests", and do not attempt to
159	>	* <li>These tests are "conformance tests", and do not attempt to
160		* test throughput, latency, scalability or other performance factors
161		* (see the separate "jtreg" tests for a set intended to check these
162		* for the most central aspects of functionality.) So, most tests use
163		* the smallest sensible numbers of threads, collection sizes, etc
164	<	* needed to check basic conformance.</li>
164	>	* needed to check basic conformance.
165		*
166		* <li>The test classes currently do not declare inclusion in
167		* any particular package to simplify things for people integrating
168	<	* them in TCK test suites.</li>
168	>	* them in TCK test suites.
169		*
170	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
171	<	* runs all JSR166 unit tests.</li>
170	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
171	>	* runs all JSR166 unit tests.
172		*
173		* </ul>
174		*/
175		public class JSR166TestCase extends TestCase {
176	+	private static final boolean useSecurityManager =
177	+	Boolean.getBoolean("jsr166.useSecurityManager");
178	+
179	+	protected static final boolean expensiveTests =
180	+	Boolean.getBoolean("jsr166.expensiveTests");
181	+
182	+	/**
183	+	* If true, also run tests that are not part of the official tck
184	+	* because they test unspecified implementation details.
185	+	*/
186	+	protected static final boolean testImplementationDetails =
187	+	Boolean.getBoolean("jsr166.testImplementationDetails");
188	+
189	+	/**
190	+	* If true, report on stdout all "slow" tests, that is, ones that
191	+	* take more than profileThreshold milliseconds to execute.
192	+	*/
193	+	private static final boolean profileTests =
194	+	Boolean.getBoolean("jsr166.profileTests");
195	+
196	+	/**
197	+	* The number of milliseconds that tests are permitted for
198	+	* execution without being reported, when profileTests is set.
199	+	*/
200	+	private static final long profileThreshold =
201	+	Long.getLong("jsr166.profileThreshold", 100);
202	+
203	+	/**
204	+	* The number of repetitions per test (for tickling rare bugs).
205	+	*/
206	+	private static final int runsPerTest =
207	+	Integer.getInteger("jsr166.runsPerTest", 1);
208	+
209	+	/**
210	+	* The number of repetitions of the test suite (for finding leaks?).
211	+	*/
212	+	private static final int suiteRuns =
213	+	Integer.getInteger("jsr166.suiteRuns", 1);
214	+
215		/**
216	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
216	>	* Returns the value of the system property, or NaN if not defined.
217	>	*/
218	>	private static float systemPropertyValue(String name) {
219	>	String floatString = System.getProperty(name);
220	>	if (floatString == null)
221	>	return Float.NaN;
222	>	try {
223	>	return Float.parseFloat(floatString);
224	>	} catch (NumberFormatException ex) {
225	>	throw new IllegalArgumentException(
226	>	String.format("Bad float value in system property %s=%s",
227	>	name, floatString));
228	>	}
229	>	}
230	>
231	>	/**
232	>	* The scaling factor to apply to standard delays used in tests.
233	>	* May be initialized from any of:
234	>	* - the "jsr166.delay.factor" system property
235	>	* - the "test.timeout.factor" system property (as used by jtreg)
236	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
237	>	* - hard-coded fuzz factor when using a known slowpoke VM
238	>	*/
239	>	private static final float delayFactor = delayFactor();
240	>
241	>	private static float delayFactor() {
242	>	float x;
243	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
244	>	return x;
245	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
246	>	return x;
247	>	String prop = System.getProperty("java.vm.version");
248	>	if (prop != null && prop.matches(".*debug.*"))
249	>	return 4.0f; // How much slower is fastdebug than product?!
250	>	return 1.0f;
251	>	}
252	>
253	>	public JSR166TestCase() { super(); }
254	>	public JSR166TestCase(String name) { super(name); }
255	>
256	>	/**
257	>	* A filter for tests to run, matching strings of the form
258	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
259	>	* Usefully combined with jsr166.runsPerTest.
260	>	*/
261	>	private static final Pattern methodFilter = methodFilter();
262	>
263	>	private static Pattern methodFilter() {
264	>	String regex = System.getProperty("jsr166.methodFilter");
265	>	return (regex == null) ? null : Pattern.compile(regex);
266	>	}
267	>
268	>	// Instrumentation to debug very rare, but very annoying hung test runs.
269	>	static volatile TestCase currentTestCase;
270	>	// static volatile int currentRun = 0;
271	>	static {
272	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
273	>	// Avoid spurious reports with enormous runsPerTest.
274	>	// A single test case run should never take more than 1 second.
275	>	// But let's cap it at the high end too ...
276	>	final int timeoutMinutes =
277	>	Math.min(15, Math.max(runsPerTest / 60, 1));
278	>	for (TestCase lastTestCase = currentTestCase;;) {
279	>	try { MINUTES.sleep(timeoutMinutes); }
280	>	catch (InterruptedException unexpected) { break; }
281	>	if (lastTestCase == currentTestCase) {
282	>	System.err.printf(
283	>	"Looks like we're stuck running test: %s%n",
284	>	lastTestCase);
285	>	//                     System.err.printf(
286	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
287	>	//                         lastTestCase, currentRun, runsPerTest);
288	>	//                     System.err.println("availableProcessors=" +
289	>	//                         Runtime.getRuntime().availableProcessors());
290	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
291	>	dumpTestThreads();
292	>	// one stack dump is probably enough; more would be spam
293	>	break;
294	>	}
295	>	lastTestCase = currentTestCase;
296	>	}}};
297	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
298	>	thread.setDaemon(true);
299	>	thread.start();
300	>	}
301	>
302	>	//     public static String cpuModel() {
303	>	//         try {
304	>	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
305	>	//                 .matcher(new String(
306	>	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
307	>	//             matcher.find();
308	>	//             return matcher.group(1);
309	>	//         } catch (Exception ex) { return null; }
310	>	//     }
311	>
312	>	public void runBare() throws Throwable {
313	>	currentTestCase = this;
314	>	if (methodFilter == null
315	>	|| methodFilter.matcher(toString()).find())
316	>	super.runBare();
317	>	}
318	>
319	>	protected void runTest() throws Throwable {
320	>	for (int i = 0; i < runsPerTest; i++) {
321	>	// currentRun = i;
322	>	if (profileTests)
323	>	runTestProfiled();
324	>	else
325	>	super.runTest();
326	>	}
327	>	}
328	>
329	>	protected void runTestProfiled() throws Throwable {
330	>	for (int i = 0; i < 2; i++) {
331	>	long startTime = System.nanoTime();
332	>	super.runTest();
333	>	long elapsedMillis = millisElapsedSince(startTime);
334	>	if (elapsedMillis < profileThreshold)
335	>	break;
336	>	// Never report first run of any test; treat it as a
337	>	// warmup run, notably to trigger all needed classloading,
338	>	if (i > 0)
339	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
340	>	}
341	>	}
342	>
343	>	/**
344	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
345		*/
346		public static void main(String[] args) {
347	<	int iters = 1;
348	<	if (args.length > 0)
349	<	iters = Integer.parseInt(args[0]);
350	<	Test s = suite();
351	<	for (int i = 0; i < iters; ++i) {
352	<	junit.textui.TestRunner.run(s);
347	>	main(suite(), args);
348	>	}
349	>
350	>	static class PithyResultPrinter extends junit.textui.ResultPrinter {
351	>	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
352	>	long runTime;
353	>	public void startTest(Test test) {}
354	>	protected void printHeader(long runTime) {
355	>	this.runTime = runTime; // defer printing for later
356	>	}
357	>	protected void printFooter(TestResult result) {
358	>	if (result.wasSuccessful()) {
359	>	getWriter().println("OK (" + result.runCount() + " tests)"
360	>	+ "  Time: " + elapsedTimeAsString(runTime));
361	>	} else {
362	>	getWriter().println("Time: " + elapsedTimeAsString(runTime));
363	>	super.printFooter(result);
364	>	}
365	>	}
366	>	}
367	>
368	>	/**
369	>	* Returns a TestRunner that doesn't bother with unnecessary
370	>	* fluff, like printing a "." for each test case.
371	>	*/
372	>	static junit.textui.TestRunner newPithyTestRunner() {
373	>	junit.textui.TestRunner runner = new junit.textui.TestRunner();
374	>	runner.setPrinter(new PithyResultPrinter(System.out));
375	>	return runner;
376	>	}
377	>
378	>	/**
379	>	* Runs all unit tests in the given test suite.
380	>	* Actual behavior influenced by jsr166.* system properties.
381	>	*/
382	>	static void main(Test suite, String[] args) {
383	>	if (useSecurityManager) {
384	>	System.err.println("Setting a permissive security manager");
385	>	Policy.setPolicy(permissivePolicy());
386	>	System.setSecurityManager(new SecurityManager());
387	>	}
388	>	for (int i = 0; i < suiteRuns; i++) {
389	>	TestResult result = newPithyTestRunner().doRun(suite);
390	>	if (!result.wasSuccessful())
391	>	System.exit(1);
392		System.gc();
393		System.runFinalization();
394		}
395	<	System.exit(0);
395	>	}
396	>
397	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
398	>	TestSuite suite = new TestSuite();
399	>	for (Object suiteOrClass : suiteOrClasses) {
400	>	if (suiteOrClass instanceof TestSuite)
401	>	suite.addTest((TestSuite) suiteOrClass);
402	>	else if (suiteOrClass instanceof Class)
403	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
404	>	else
405	>	throw new ClassCastException("not a test suite or class");
406	>	}
407	>	return suite;
408	>	}
409	>
410	>	public static void addNamedTestClasses(TestSuite suite,
411	>	String... testClassNames) {
412	>	for (String testClassName : testClassNames) {
413	>	try {
414	>	Class<?> testClass = Class.forName(testClassName);
415	>	Method m = testClass.getDeclaredMethod("suite",
416	>	new Class<?>[0]);
417	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
418	>	} catch (Exception e) {
419	>	throw new Error("Missing test class", e);
420	>	}
421	>	}
422	>	}
423	>
424	>	public static final double JAVA_CLASS_VERSION;
425	>	public static final String JAVA_SPECIFICATION_VERSION;
426	>	static {
427	>	try {
428	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
429	>	new java.security.PrivilegedAction<Double>() {
430	>	public Double run() {
431	>	return Double.valueOf(System.getProperty("java.class.version"));}});
432	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
433	>	new java.security.PrivilegedAction<String>() {
434	>	public String run() {
435	>	return System.getProperty("java.specification.version");}});
436	>	} catch (Throwable t) {
437	>	throw new Error(t);
438	>	}
439	>	}
440	>
441	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
442	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
443	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
444	>	public static boolean atLeastJava9() {
445	>	return JAVA_CLASS_VERSION >= 53.0
446	>	// As of 2015-09, java9 still uses 52.0 class file version
447	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
448	>	}
449	>	public static boolean atLeastJava10() {
450	>	return JAVA_CLASS_VERSION >= 54.0
451	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
452		}
453
454		/**
455	<	* Collects all JSR166 unit tests as one suite
455	>	* Collects all JSR166 unit tests as one suite.
456		*/
457		public static Test suite() {
458	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
459	<
460	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
461	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
462	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
463	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
464	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
465	<	suite.addTest(new TestSuite(PhaserTest.class));
466	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
467	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
468	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
469	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
470	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
471	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
472	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
473	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
474	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
475	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
476	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
477	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
478	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
479	<	suite.addTest(new TestSuite(AtomicLongTest.class));
480	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
481	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
482	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
483	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
484	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
485	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
486	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
487	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
488	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
489	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
490	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
491	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
492	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
493	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
494	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
495	<	suite.addTest(new TestSuite(DelayQueueTest.class));
496	<	suite.addTest(new TestSuite(EntryTest.class));
497	<	suite.addTest(new TestSuite(ExchangerTest.class));
498	<	suite.addTest(new TestSuite(ExecutorsTest.class));
499	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
500	<	suite.addTest(new TestSuite(FutureTaskTest.class));
501	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
502	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
503	<	suite.addTest(new TestSuite(LinkedListTest.class));
504	<	suite.addTest(new TestSuite(LockSupportTest.class));
505	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
506	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
507	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
508	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
509	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
510	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
511	<	suite.addTest(new TestSuite(SemaphoreTest.class));
512	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
513	<	suite.addTest(new TestSuite(SystemTest.class));
514	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
515	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
516	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
517	<	suite.addTest(new TestSuite(ThreadTest.class));
518	<	suite.addTest(new TestSuite(TimeUnitTest.class));
519	<	suite.addTest(new TestSuite(TreeMapTest.class));
520	<	suite.addTest(new TestSuite(TreeSetTest.class));
521	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
522	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
458	>	// Java7+ test classes
459	>	TestSuite suite = newTestSuite(
460	>	ForkJoinPoolTest.suite(),
461	>	ForkJoinTaskTest.suite(),
462	>	RecursiveActionTest.suite(),
463	>	RecursiveTaskTest.suite(),
464	>	LinkedTransferQueueTest.suite(),
465	>	PhaserTest.suite(),
466	>	ThreadLocalRandomTest.suite(),
467	>	AbstractExecutorServiceTest.suite(),
468	>	AbstractQueueTest.suite(),
469	>	AbstractQueuedSynchronizerTest.suite(),
470	>	AbstractQueuedLongSynchronizerTest.suite(),
471	>	ArrayBlockingQueueTest.suite(),
472	>	ArrayDequeTest.suite(),
473	>	ArrayListTest.suite(),
474	>	AtomicBooleanTest.suite(),
475	>	AtomicIntegerArrayTest.suite(),
476	>	AtomicIntegerFieldUpdaterTest.suite(),
477	>	AtomicIntegerTest.suite(),
478	>	AtomicLongArrayTest.suite(),
479	>	AtomicLongFieldUpdaterTest.suite(),
480	>	AtomicLongTest.suite(),
481	>	AtomicMarkableReferenceTest.suite(),
482	>	AtomicReferenceArrayTest.suite(),
483	>	AtomicReferenceFieldUpdaterTest.suite(),
484	>	AtomicReferenceTest.suite(),
485	>	AtomicStampedReferenceTest.suite(),
486	>	ConcurrentHashMapTest.suite(),
487	>	ConcurrentLinkedDequeTest.suite(),
488	>	ConcurrentLinkedQueueTest.suite(),
489	>	ConcurrentSkipListMapTest.suite(),
490	>	ConcurrentSkipListSubMapTest.suite(),
491	>	ConcurrentSkipListSetTest.suite(),
492	>	ConcurrentSkipListSubSetTest.suite(),
493	>	CopyOnWriteArrayListTest.suite(),
494	>	CopyOnWriteArraySetTest.suite(),
495	>	CountDownLatchTest.suite(),
496	>	CountedCompleterTest.suite(),
497	>	CyclicBarrierTest.suite(),
498	>	DelayQueueTest.suite(),
499	>	EntryTest.suite(),
500	>	ExchangerTest.suite(),
501	>	ExecutorsTest.suite(),
502	>	ExecutorCompletionServiceTest.suite(),
503	>	FutureTaskTest.suite(),
504	>	LinkedBlockingDequeTest.suite(),
505	>	LinkedBlockingQueueTest.suite(),
506	>	LinkedListTest.suite(),
507	>	LockSupportTest.suite(),
508	>	PriorityBlockingQueueTest.suite(),
509	>	PriorityQueueTest.suite(),
510	>	ReentrantLockTest.suite(),
511	>	ReentrantReadWriteLockTest.suite(),
512	>	ScheduledExecutorTest.suite(),
513	>	ScheduledExecutorSubclassTest.suite(),
514	>	SemaphoreTest.suite(),
515	>	SynchronousQueueTest.suite(),
516	>	SystemTest.suite(),
517	>	ThreadLocalTest.suite(),
518	>	ThreadPoolExecutorTest.suite(),
519	>	ThreadPoolExecutorSubclassTest.suite(),
520	>	ThreadTest.suite(),
521	>	TimeUnitTest.suite(),
522	>	TreeMapTest.suite(),
523	>	TreeSetTest.suite(),
524	>	TreeSubMapTest.suite(),
525	>	TreeSubSetTest.suite(),
526	>	VectorTest.suite());
527	>
528	>	// Java8+ test classes
529	>	if (atLeastJava8()) {
530	>	String[] java8TestClassNames = {
531	>	"ArrayDeque8Test",
532	>	"Atomic8Test",
533	>	"CompletableFutureTest",
534	>	"ConcurrentHashMap8Test",
535	>	"CountedCompleter8Test",
536	>	"DoubleAccumulatorTest",
537	>	"DoubleAdderTest",
538	>	"ForkJoinPool8Test",
539	>	"ForkJoinTask8Test",
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
185	–
640		/**
641	<	* Returns the shortest timed delay. This could
642	<	* be reimplemented to use for example a Property.
641	>	* Returns the shortest timed delay. This can be scaled up for
642	>	* slow machines using the jsr166.delay.factor system property,
643	>	* or via jtreg's -timeoutFactor: flag.
644	>	* http://openjdk.java.net/jtreg/command-help.html
645		*/
646		protected long getShortDelay() {
647	<	return 50;
647	>	return (long) (50 * delayFactor);
648		}
649
194	–
650		/**
651		* Sets delays as multiples of SHORT_DELAY.
652		*/
653		protected void setDelays() {
654		SHORT_DELAY_MS = getShortDelay();
655	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
655	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
656		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
657	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
657	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
658	>	}
659	>
660	>	/**
661	>	* Returns a timeout in milliseconds to be used in tests that
662	>	* verify that operations block or time out.
663	>	*/
664	>	long timeoutMillis() {
665	>	return SHORT_DELAY_MS / 4;
666		}
667
668		/**
669	<	* Flag set true if any threadAssert methods fail
669	>	* Returns a new Date instance representing a time at least
670	>	* delayMillis milliseconds in the future.
671		*/
672	<	volatile boolean threadFailed;
672	>	Date delayedDate(long delayMillis) {
673	>	// Add 1 because currentTimeMillis is known to round into the past.
674	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
675	>	}
676
677		/**
678	<	* Initializes test to indicate that no thread assertions have failed
678	>	* The first exception encountered if any threadAssertXXX method fails.
679		*/
680	+	private final AtomicReference<Throwable> threadFailure
681	+	= new AtomicReference<>(null);
682	+
683	+	/**
684	+	* Records an exception so that it can be rethrown later in the test
685	+	* harness thread, triggering a test case failure.  Only the first
686	+	* failure is recorded; subsequent calls to this method from within
687	+	* the same test have no effect.
688	+	*/
689	+	public void threadRecordFailure(Throwable t) {
690	+	System.err.println(t);
691	+	dumpTestThreads();
692	+	threadFailure.compareAndSet(null, t);
693	+	}
694	+
695		public void setUp() {
696		setDelays();
697	<	threadFailed = false;
697	>	}
698	>
699	>	void tearDownFail(String format, Object... args) {
700	>	String msg = toString() + ": " + String.format(format, args);
701	>	System.err.println(msg);
702	>	dumpTestThreads();
703	>	throw new AssertionFailedError(msg);
704		}
705
706		/**
707	<	* Triggers test case failure if any thread assertions have failed
707	>	* Extra checks that get done for all test cases.
708	>	*
709	>	* Triggers test case failure if any thread assertions have failed,
710	>	* by rethrowing, in the test harness thread, any exception recorded
711	>	* earlier by threadRecordFailure.
712	>	*
713	>	* Triggers test case failure if interrupt status is set in the main thread.
714	>	*/
715	>	public void tearDown() throws Exception {
716	>	Throwable t = threadFailure.getAndSet(null);
717	>	if (t != null) {
718	>	if (t instanceof Error)
719	>	throw (Error) t;
720	>	else if (t instanceof RuntimeException)
721	>	throw (RuntimeException) t;
722	>	else if (t instanceof Exception)
723	>	throw (Exception) t;
724	>	else {
725	>	AssertionFailedError afe =
726	>	new AssertionFailedError(t.toString());
727	>	afe.initCause(t);
728	>	throw afe;
729	>	}
730	>	}
731	>
732	>	if (Thread.interrupted())
733	>	tearDownFail("interrupt status set in main thread");
734	>
735	>	checkForkJoinPoolThreadLeaks();
736	>	}
737	>
738	>	/**
739	>	* Finds missing PoolCleaners
740		*/
741	<	public void tearDown() {
742	<	assertFalse(threadFailed);
741	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
742	>	Thread[] survivors = new Thread[7];
743	>	int count = Thread.enumerate(survivors);
744	>	for (int i = 0; i < count; i++) {
745	>	Thread thread = survivors[i];
746	>	String name = thread.getName();
747	>	if (name.startsWith("ForkJoinPool-")) {
748	>	// give thread some time to terminate
749	>	thread.join(LONG_DELAY_MS);
750	>	if (thread.isAlive())
751	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
752	>	thread);
753	>	}
754	>	}
755	>
756	>	if (!ForkJoinPool.commonPool()
757	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
758	>	tearDownFail("ForkJoin common pool thread stuck");
759		}
760
761		/**
762	<	* Fail, also setting status to indicate current testcase should fail
762	>	* Just like fail(reason), but additionally recording (using
763	>	* threadRecordFailure) any AssertionFailedError thrown, so that
764	>	* the current testcase will fail.
765		*/
766		public void threadFail(String reason) {
767	<	threadFailed = true;
768	<	fail(reason);
767	>	try {
768	>	fail(reason);
769	>	} catch (AssertionFailedError t) {
770	>	threadRecordFailure(t);
771	>	throw t;
772	>	}
773		}
774
775		/**
776	<	* If expression not true, set status to indicate current testcase
777	<	* should fail
776	>	* Just like assertTrue(b), but additionally recording (using
777	>	* threadRecordFailure) any AssertionFailedError thrown, so that
778	>	* the current testcase will fail.
779		*/
780		public void threadAssertTrue(boolean b) {
781	<	if (!b) {
239	<	threadFailed = true;
781	>	try {
782		assertTrue(b);
783	+	} catch (AssertionFailedError t) {
784	+	threadRecordFailure(t);
785	+	throw t;
786		}
787		}
788
789		/**
790	<	* If expression not false, set status to indicate current testcase
791	<	* should fail
790	>	* Just like assertFalse(b), but additionally recording (using
791	>	* threadRecordFailure) any AssertionFailedError thrown, so that
792	>	* the current testcase will fail.
793		*/
794		public void threadAssertFalse(boolean b) {
795	<	if (b) {
250	<	threadFailed = true;
795	>	try {
796		assertFalse(b);
797	+	} catch (AssertionFailedError t) {
798	+	threadRecordFailure(t);
799	+	throw t;
800		}
801		}
802
803		/**
804	<	* If argument not null, set status to indicate current testcase
805	<	* should fail
804	>	* Just like assertNull(x), but additionally recording (using
805	>	* threadRecordFailure) any AssertionFailedError thrown, so that
806	>	* the current testcase will fail.
807		*/
808		public void threadAssertNull(Object x) {
809	<	if (x != null) {
261	<	threadFailed = true;
809	>	try {
810		assertNull(x);
811	+	} catch (AssertionFailedError t) {
812	+	threadRecordFailure(t);
813	+	throw t;
814		}
815		}
816
817		/**
818	<	* If arguments not equal, set status to indicate current testcase
819	<	* should fail
818	>	* Just like assertEquals(x, y), but additionally recording (using
819	>	* threadRecordFailure) any AssertionFailedError thrown, so that
820	>	* the current testcase will fail.
821		*/
822		public void threadAssertEquals(long x, long y) {
823	<	if (x != y) {
272	<	threadFailed = true;
823	>	try {
824		assertEquals(x, y);
825	+	} catch (AssertionFailedError t) {
826	+	threadRecordFailure(t);
827	+	throw t;
828		}
829		}
830
831		/**
832	<	* If arguments not equal, set status to indicate current testcase
833	<	* should fail
832	>	* Just like assertEquals(x, y), but additionally recording (using
833	>	* threadRecordFailure) any AssertionFailedError thrown, so that
834	>	* the current testcase will fail.
835		*/
836		public void threadAssertEquals(Object x, Object y) {
837	<	if (x != y && (x == null || !x.equals(y))) {
283	<	threadFailed = true;
837	>	try {
838		assertEquals(x, y);
839	+	} catch (AssertionFailedError fail) {
840	+	threadRecordFailure(fail);
841	+	throw fail;
842	+	} catch (Throwable fail) {
843	+	threadUnexpectedException(fail);
844	+	}
845	+	}
846	+
847	+	/**
848	+	* Just like assertSame(x, y), but additionally recording (using
849	+	* threadRecordFailure) any AssertionFailedError thrown, so that
850	+	* the current testcase will fail.
851	+	*/
852	+	public void threadAssertSame(Object x, Object y) {
853	+	try {
854	+	assertSame(x, y);
855	+	} catch (AssertionFailedError fail) {
856	+	threadRecordFailure(fail);
857	+	throw fail;
858		}
859		}
860
861		/**
862	<	* threadFail with message "should throw exception"
862	>	* Calls threadFail with message "should throw exception".
863		*/
864		public void threadShouldThrow() {
865	<	threadFailed = true;
293	<	fail("should throw exception");
865	>	threadFail("should throw exception");
866		}
867
868		/**
869	<	* threadFail with message "should throw" + exceptionName
869	>	* Calls threadFail with message "should throw" + exceptionName.
870		*/
871		public void threadShouldThrow(String exceptionName) {
872	<	threadFailed = true;
301	<	fail("should throw " + exceptionName);
872	>	threadFail("should throw " + exceptionName);
873		}
874
875		/**
876	<	* threadFail with message "Unexpected exception"
876	>	* Records the given exception using {@link #threadRecordFailure},
877	>	* then rethrows the exception, wrapping it in an
878	>	* AssertionFailedError if necessary.
879		*/
880	<	public void threadUnexpectedException() {
881	<	threadFailed = true;
882	<	fail("Unexpected exception");
880	>	public void threadUnexpectedException(Throwable t) {
881	>	threadRecordFailure(t);
882	>	t.printStackTrace();
883	>	if (t instanceof RuntimeException)
884	>	throw (RuntimeException) t;
885	>	else if (t instanceof Error)
886	>	throw (Error) t;
887	>	else {
888	>	AssertionFailedError afe =
889	>	new AssertionFailedError("unexpected exception: " + t);
890	>	afe.initCause(t);
891	>	throw afe;
892	>	}
893		}
894
895		/**
896	<	* threadFail with message "Unexpected exception", with argument
896	>	* Delays, via Thread.sleep, for the given millisecond delay, but
897	>	* if the sleep is shorter than specified, may re-sleep or yield
898	>	* until time elapses.  Ensures that the given time, as measured
899	>	* by System.nanoTime(), has elapsed.
900		*/
901	<	public void threadUnexpectedException(Throwable ex) {
902	<	threadFailed = true;
903	<	ex.printStackTrace();
904	<	fail("Unexpected exception: " + ex);
901	>	static void delay(long millis) throws InterruptedException {
902	>	long nanos = millis * (1000 * 1000);
903	>	final long wakeupTime = System.nanoTime() + nanos;
904	>	do {
905	>	if (millis > 0L)
906	>	Thread.sleep(millis);
907	>	else // too short to sleep
908	>	Thread.yield();
909	>	nanos = wakeupTime - System.nanoTime();
910	>	millis = nanos / (1000 * 1000);
911	>	} while (nanos >= 0L);
912		}
913
914		/**
915	<	* Wait out termination of a thread pool or fail doing so
915	>	* Allows use of try-with-resources with per-test thread pools.
916		*/
917	<	public void joinPool(ExecutorService exec) {
917	>	class PoolCleaner implements AutoCloseable {
918	>	private final ExecutorService pool;
919	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
920	>	public void close() { joinPool(pool); }
921	>	}
922	>
923	>	/**
924	>	* An extension of PoolCleaner that has an action to release the pool.
925	>	*/
926	>	class PoolCleanerWithReleaser extends PoolCleaner {
927	>	private final Runnable releaser;
928	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
929	>	super(pool);
930	>	this.releaser = releaser;
931	>	}
932	>	public void close() {
933	>	try {
934	>	releaser.run();
935	>	} finally {
936	>	super.close();
937	>	}
938	>	}
939	>	}
940	>
941	>	PoolCleaner cleaner(ExecutorService pool) {
942	>	return new PoolCleaner(pool);
943	>	}
944	>
945	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
946	>	return new PoolCleanerWithReleaser(pool, releaser);
947	>	}
948	>
949	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
950	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
951	>	}
952	>
953	>	Runnable releaser(final CountDownLatch latch) {
954	>	return new Runnable() { public void run() {
955	>	do { latch.countDown(); }
956	>	while (latch.getCount() > 0);
957	>	}};
958	>	}
959	>
960	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
961	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
962	>	}
963	>
964	>	Runnable releaser(final AtomicBoolean flag) {
965	>	return new Runnable() { public void run() { flag.set(true); }};
966	>	}
967	>
968	>	/**
969	>	* Waits out termination of a thread pool or fails doing so.
970	>	*/
971	>	void joinPool(ExecutorService pool) {
972		try {
973	<	exec.shutdown();
974	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
973	>	pool.shutdown();
974	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
975	>	try {
976	>	threadFail("ExecutorService " + pool +
977	>	" did not terminate in a timely manner");
978	>	} finally {
979	>	// last resort, for the benefit of subsequent tests
980	>	pool.shutdownNow();
981	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
982	>	}
983	>	}
984		} catch (SecurityException ok) {
985		// Allowed in case test doesn't have privs
986	<	} catch (InterruptedException ie) {
987	<	fail("Unexpected InterruptedException");
986	>	} catch (InterruptedException fail) {
987	>	threadFail("Unexpected InterruptedException");
988		}
989		}
990
991	+	/**
992	+	* Like Runnable, but with the freedom to throw anything.
993	+	* junit folks had the same idea:
994	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
995	+	*/
996	+	interface Action { public void run() throws Throwable; }
997
998		/**
999	<	* fail with message "should throw exception"
999	>	* Runs all the given actions in parallel, failing if any fail.
1000	>	* Useful for running multiple variants of tests that are
1001	>	* necessarily individually slow because they must block.
1002		*/
1003	<	public void shouldThrow() {
1004	<	fail("Should throw exception");
1003	>	void testInParallel(Action ... actions) {
1004	>	ExecutorService pool = Executors.newCachedThreadPool();
1005	>	try (PoolCleaner cleaner = cleaner(pool)) {
1006	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1007	>	for (final Action action : actions)
1008	>	futures.add(pool.submit(new CheckedRunnable() {
1009	>	public void realRun() throws Throwable { action.run();}}));
1010	>	for (Future<?> future : futures)
1011	>	try {
1012	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1013	>	} catch (ExecutionException ex) {
1014	>	threadUnexpectedException(ex.getCause());
1015	>	} catch (Exception ex) {
1016	>	threadUnexpectedException(ex);
1017	>	}
1018	>	}
1019		}
1020
1021		/**
1022	<	* fail with message "should throw " + exceptionName
1022	>	* A debugging tool to print stack traces of most threads, as jstack does.
1023	>	* Uninteresting threads are filtered out.
1024		*/
1025	<	public void shouldThrow(String exceptionName) {
1026	<	fail("Should throw " + exceptionName);
1025	>	static void dumpTestThreads() {
1026	>	SecurityManager sm = System.getSecurityManager();
1027	>	if (sm != null) {
1028	>	try {
1029	>	System.setSecurityManager(null);
1030	>	} catch (SecurityException giveUp) {
1031	>	return;
1032	>	}
1033	>	}
1034	>
1035	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1036	>	System.err.println("------ stacktrace dump start ------");
1037	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1038	>	final String name = info.getThreadName();
1039	>	String lockName;
1040	>	if ("Signal Dispatcher".equals(name))
1041	>	continue;
1042	>	if ("Reference Handler".equals(name)
1043	>	&& (lockName = info.getLockName()) != null
1044	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1045	>	continue;
1046	>	if ("Finalizer".equals(name)
1047	>	&& (lockName = info.getLockName()) != null
1048	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1049	>	continue;
1050	>	if ("checkForWedgedTest".equals(name))
1051	>	continue;
1052	>	System.err.print(info);
1053	>	}
1054	>	System.err.println("------ stacktrace dump end ------");
1055	>
1056	>	if (sm != null) System.setSecurityManager(sm);
1057	>	}
1058	>
1059	>	/**
1060	>	* Checks that thread does not terminate within the default
1061	>	* millisecond delay of {@code timeoutMillis()}.
1062	>	*/
1063	>	void assertThreadStaysAlive(Thread thread) {
1064	>	assertThreadStaysAlive(thread, timeoutMillis());
1065	>	}
1066	>
1067	>	/**
1068	>	* Checks that thread does not terminate within the given millisecond delay.
1069	>	*/
1070	>	void assertThreadStaysAlive(Thread thread, long millis) {
1071	>	try {
1072	>	// No need to optimize the failing case via Thread.join.
1073	>	delay(millis);
1074	>	assertTrue(thread.isAlive());
1075	>	} catch (InterruptedException fail) {
1076	>	threadFail("Unexpected InterruptedException");
1077	>	}
1078	>	}
1079	>
1080	>	/**
1081	>	* Checks that the threads do not terminate within the default
1082	>	* millisecond delay of {@code timeoutMillis()}.
1083	>	*/
1084	>	void assertThreadsStayAlive(Thread... threads) {
1085	>	assertThreadsStayAlive(timeoutMillis(), threads);
1086	>	}
1087	>
1088	>	/**
1089	>	* Checks that the threads do not terminate within the given millisecond delay.
1090	>	*/
1091	>	void assertThreadsStayAlive(long millis, Thread... threads) {
1092	>	try {
1093	>	// No need to optimize the failing case via Thread.join.
1094	>	delay(millis);
1095	>	for (Thread thread : threads)
1096	>	assertTrue(thread.isAlive());
1097	>	} catch (InterruptedException fail) {
1098	>	threadFail("Unexpected InterruptedException");
1099	>	}
1100	>	}
1101	>
1102	>	/**
1103	>	* Checks that future.get times out, with the default timeout of
1104	>	* {@code timeoutMillis()}.
1105	>	*/
1106	>	void assertFutureTimesOut(Future future) {
1107	>	assertFutureTimesOut(future, timeoutMillis());
1108		}
1109
1110		/**
1111	<	* fail with message "Unexpected exception"
1111	>	* Checks that future.get times out, with the given millisecond timeout.
1112		*/
1113	<	public void unexpectedException() {
1114	<	fail("Unexpected exception");
1113	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
1114	>	long startTime = System.nanoTime();
1115	>	try {
1116	>	future.get(timeoutMillis, MILLISECONDS);
1117	>	shouldThrow();
1118	>	} catch (TimeoutException success) {
1119	>	} catch (Exception fail) {
1120	>	threadUnexpectedException(fail);
1121	>	} finally { future.cancel(true); }
1122	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1123		}
1124
1125		/**
1126	<	* fail with message "Unexpected exception", with argument
1126	>	* Fails with message "should throw exception".
1127		*/
1128	<	public void unexpectedException(Throwable ex) {
1129	<	ex.printStackTrace();
362	<	fail("Unexpected exception: " + ex);
1128	>	public void shouldThrow() {
1129	>	fail("Should throw exception");
1130		}
1131
1132	+	/**
1133	+	* Fails with message "should throw " + exceptionName.
1134	+	*/
1135	+	public void shouldThrow(String exceptionName) {
1136	+	fail("Should throw " + exceptionName);
1137	+	}
1138
1139		/**
1140		* The number of elements to place in collections, arrays, etc.
#	Line 370 | Line 1143 | public class JSR166TestCase extends Test
1143
1144		// Some convenient Integer constants
1145
1146	<	public static final Integer zero = new Integer(0);
1147	<	public static final Integer one = new Integer(1);
1148	<	public static final Integer two = new Integer(2);
1149	<	public static final Integer three  = new Integer(3);
1146	>	public static final Integer zero  = new Integer(0);
1147	>	public static final Integer one   = new Integer(1);
1148	>	public static final Integer two   = new Integer(2);
1149	>	public static final Integer three = new Integer(3);
1150		public static final Integer four  = new Integer(4);
1151		public static final Integer five  = new Integer(5);
1152	<	public static final Integer six = new Integer(6);
1152	>	public static final Integer six   = new Integer(6);
1153		public static final Integer seven = new Integer(7);
1154		public static final Integer eight = new Integer(8);
1155	<	public static final Integer nine = new Integer(9);
1155	>	public static final Integer nine  = new Integer(9);
1156		public static final Integer m1  = new Integer(-1);
1157		public static final Integer m2  = new Integer(-2);
1158		public static final Integer m3  = new Integer(-3);
1159	<	public static final Integer m4 = new Integer(-4);
1160	<	public static final Integer m5 = new Integer(-5);
1161	<	public static final Integer m6 = new Integer(-6);
1159	>	public static final Integer m4  = new Integer(-4);
1160	>	public static final Integer m5  = new Integer(-5);
1161	>	public static final Integer m6  = new Integer(-6);
1162		public static final Integer m10 = new Integer(-10);
1163
1164	+	/**
1165	+	* Runs Runnable r with a security policy that permits precisely
1166	+	* the specified permissions.  If there is no current security
1167	+	* manager, the runnable is run twice, both with and without a
1168	+	* security manager.  We require that any security manager permit
1169	+	* getPolicy/setPolicy.
1170	+	*/
1171	+	public void runWithPermissions(Runnable r, Permission... permissions) {
1172	+	SecurityManager sm = System.getSecurityManager();
1173	+	if (sm == null) {
1174	+	r.run();
1175	+	}
1176	+	runWithSecurityManagerWithPermissions(r, permissions);
1177	+	}
1178	+
1179	+	/**
1180	+	* Runs Runnable r with a security policy that permits precisely
1181	+	* the specified permissions.  If there is no current security
1182	+	* manager, a temporary one is set for the duration of the
1183	+	* Runnable.  We require that any security manager permit
1184	+	* getPolicy/setPolicy.
1185	+	*/
1186	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1187	+	Permission... permissions) {
1188	+	SecurityManager sm = System.getSecurityManager();
1189	+	if (sm == null) {
1190	+	Policy savedPolicy = Policy.getPolicy();
1191	+	try {
1192	+	Policy.setPolicy(permissivePolicy());
1193	+	System.setSecurityManager(new SecurityManager());
1194	+	runWithSecurityManagerWithPermissions(r, permissions);
1195	+	} finally {
1196	+	System.setSecurityManager(null);
1197	+	Policy.setPolicy(savedPolicy);
1198	+	}
1199	+	} else {
1200	+	Policy savedPolicy = Policy.getPolicy();
1201	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1202	+	Policy.setPolicy(policy);
1203	+
1204	+	try {
1205	+	r.run();
1206	+	} finally {
1207	+	policy.addPermission(new SecurityPermission("setPolicy"));
1208	+	Policy.setPolicy(savedPolicy);
1209	+	}
1210	+	}
1211	+	}
1212	+
1213	+	/**
1214	+	* Runs a runnable without any permissions.
1215	+	*/
1216	+	public void runWithoutPermissions(Runnable r) {
1217	+	runWithPermissions(r);
1218	+	}
1219
1220		/**
1221		* A security policy where new permissions can be dynamically added
#	Line 395 | Line 1223 | public class JSR166TestCase extends Test
1223		*/
1224		public static class AdjustablePolicy extends java.security.Policy {
1225		Permissions perms = new Permissions();
1226	<	AdjustablePolicy() { }
1226	>	AdjustablePolicy(Permission... permissions) {
1227	>	for (Permission permission : permissions)
1228	>	perms.add(permission);
1229	>	}
1230		void addPermission(Permission perm) { perms.add(perm); }
1231		void clearPermissions() { perms = new Permissions(); }
1232		public PermissionCollection getPermissions(CodeSource cs) {
#	Line 408 | Line 1239 | public class JSR166TestCase extends Test
1239		return perms.implies(p);
1240		}
1241		public void refresh() {}
1242	+	public String toString() {
1243	+	List<Permission> ps = new ArrayList<>();
1244	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1245	+	ps.add(e.nextElement());
1246	+	return "AdjustablePolicy with permissions " + ps;
1247	+	}
1248		}
1249
1250		/**
1251	<	* Sleep until the timeout has elapsed, or interrupted.
415	<	* Does <em>NOT</em> throw InterruptedException.
1251	>	* Returns a policy containing all the permissions we ever need.
1252		*/
1253	<	void sleepTillInterrupted(long timeoutMillis) {
1253	>	public static Policy permissivePolicy() {
1254	>	return new AdjustablePolicy
1255	>	// Permissions j.u.c. needs directly
1256	>	(new RuntimePermission("modifyThread"),
1257	>	new RuntimePermission("getClassLoader"),
1258	>	new RuntimePermission("setContextClassLoader"),
1259	>	// Permissions needed to change permissions!
1260	>	new SecurityPermission("getPolicy"),
1261	>	new SecurityPermission("setPolicy"),
1262	>	new RuntimePermission("setSecurityManager"),
1263	>	// Permissions needed by the junit test harness
1264	>	new RuntimePermission("accessDeclaredMembers"),
1265	>	new PropertyPermission("*", "read"),
1266	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
1267	>	}
1268	>
1269	>	/**
1270	>	* Sleeps until the given time has elapsed.
1271	>	* Throws AssertionFailedError if interrupted.
1272	>	*/
1273	>	static void sleep(long millis) {
1274		try {
1275	<	Thread.sleep(timeoutMillis);
1276	<	} catch (InterruptedException wakeup) {}
1275	>	delay(millis);
1276	>	} catch (InterruptedException fail) {
1277	>	AssertionFailedError afe =
1278	>	new AssertionFailedError("Unexpected InterruptedException");
1279	>	afe.initCause(fail);
1280	>	throw afe;
1281	>	}
1282	>	}
1283	>
1284	>	/**
1285	>	* Spin-waits up to the specified number of milliseconds for the given
1286	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1287	>	*/
1288	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1289	>	long startTime = 0L;
1290	>	for (;;) {
1291	>	Thread.State s = thread.getState();
1292	>	if (s == Thread.State.BLOCKED ||
1293	>	s == Thread.State.WAITING ||
1294	>	s == Thread.State.TIMED_WAITING)
1295	>	return;
1296	>	else if (s == Thread.State.TERMINATED)
1297	>	fail("Unexpected thread termination");
1298	>	else if (startTime == 0L)
1299	>	startTime = System.nanoTime();
1300	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1301	>	threadAssertTrue(thread.isAlive());
1302	>	return;
1303	>	}
1304	>	Thread.yield();
1305	>	}
1306		}
1307
1308		/**
1309	<	* Returns a new started Thread running the given runnable.
1309	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1310	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1311	>	*/
1312	>	void waitForThreadToEnterWaitState(Thread thread) {
1313	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1314	>	}
1315	>
1316	>	/**
1317	>	* Returns the number of milliseconds since time given by
1318	>	* startNanoTime, which must have been previously returned from a
1319	>	* call to {@link System#nanoTime()}.
1320	>	*/
1321	>	static long millisElapsedSince(long startNanoTime) {
1322	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1323	>	}
1324	>
1325	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1326	>	//         long startTime = System.nanoTime();
1327	>	//         try {
1328	>	//             r.run();
1329	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1330	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1331	>	//             throw new AssertionFailedError("did not return promptly");
1332	>	//     }
1333	>
1334	>	//     void assertTerminatesPromptly(Runnable r) {
1335	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1336	>	//     }
1337	>
1338	>	/**
1339	>	* Checks that timed f.get() returns the expected value, and does not
1340	>	* wait for the timeout to elapse before returning.
1341	>	*/
1342	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1343	>	long startTime = System.nanoTime();
1344	>	try {
1345	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1346	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1347	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1348	>	throw new AssertionFailedError("timed get did not return promptly");
1349	>	}
1350	>
1351	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1352	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1353	>	}
1354	>
1355	>	/**
1356	>	* Returns a new started daemon Thread running the given runnable.
1357		*/
1358		Thread newStartedThread(Runnable runnable) {
1359		Thread t = new Thread(runnable);
1360	+	t.setDaemon(true);
1361		t.start();
1362		return t;
1363		}
1364
1365	+	/**
1366	+	* Waits for the specified time (in milliseconds) for the thread
1367	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1368	+	* the thread (in the hope that it may terminate later) and fails.
1369	+	*/
1370	+	void awaitTermination(Thread t, long timeoutMillis) {
1371	+	try {
1372	+	t.join(timeoutMillis);
1373	+	} catch (InterruptedException fail) {
1374	+	threadUnexpectedException(fail);
1375	+	} finally {
1376	+	if (t.getState() != Thread.State.TERMINATED) {
1377	+	t.interrupt();
1378	+	threadFail("timed out waiting for thread to terminate");
1379	+	}
1380	+	}
1381	+	}
1382	+
1383	+	/**
1384	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1385	+	* terminate (using {@link Thread#join(long)}), else interrupts
1386	+	* the thread (in the hope that it may terminate later) and fails.
1387	+	*/
1388	+	void awaitTermination(Thread t) {
1389	+	awaitTermination(t, LONG_DELAY_MS);
1390	+	}
1391	+
1392		// Some convenient Runnable classes
1393
1394		public abstract class CheckedRunnable implements Runnable {
#	Line 437 | Line 1397 | public class JSR166TestCase extends Test
1397		public final void run() {
1398		try {
1399		realRun();
1400	<	} catch (Throwable t) {
1401	<	threadUnexpectedException(t);
1400	>	} catch (Throwable fail) {
1401	>	threadUnexpectedException(fail);
1402		}
1403		}
1404		}
#	Line 491 | Line 1451 | public class JSR166TestCase extends Test
1451		realRun();
1452		threadShouldThrow("InterruptedException");
1453		} catch (InterruptedException success) {
1454	<	} catch (Throwable t) {
1455	<	threadUnexpectedException(t);
1454	>	threadAssertFalse(Thread.interrupted());
1455	>	} catch (Throwable fail) {
1456	>	threadUnexpectedException(fail);
1457		}
1458		}
1459		}
#	Line 503 | Line 1464 | public class JSR166TestCase extends Test
1464		public final T call() {
1465		try {
1466		return realCall();
1467	<	} catch (Throwable t) {
1468	<	threadUnexpectedException(t);
1467	>	} catch (Throwable fail) {
1468	>	threadUnexpectedException(fail);
1469	>	return null;
1470		}
509	–	return null;
1471		}
1472		}
1473
1474	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1474	>	public abstract class CheckedInterruptedCallable<T>
1475	>	implements Callable<T> {
1476		protected abstract T realCall() throws Throwable;
1477
1478		public final T call() {
#	Line 519 | Line 1481 | public class JSR166TestCase extends Test
1481		threadShouldThrow("InterruptedException");
1482		return result;
1483		} catch (InterruptedException success) {
1484	<	} catch (Throwable t) {
1485	<	threadUnexpectedException(t);
1484	>	threadAssertFalse(Thread.interrupted());
1485	>	} catch (Throwable fail) {
1486	>	threadUnexpectedException(fail);
1487		}
1488		return null;
1489		}
#	Line 537 | Line 1500 | public class JSR166TestCase extends Test
1500		public static final String TEST_STRING = "a test string";
1501
1502		public static class StringTask implements Callable<String> {
1503	<	public String call() { return TEST_STRING; }
1503	>	final String value;
1504	>	public StringTask() { this(TEST_STRING); }
1505	>	public StringTask(String value) { this.value = value; }
1506	>	public String call() { return value; }
1507	>	}
1508	>
1509	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1510	>	return new CheckedCallable<String>() {
1511	>	protected String realCall() {
1512	>	try {
1513	>	latch.await();
1514	>	} catch (InterruptedException quittingTime) {}
1515	>	return TEST_STRING;
1516	>	}};
1517	>	}
1518	>
1519	>	public Runnable countDowner(final CountDownLatch latch) {
1520	>	return new CheckedRunnable() {
1521	>	public void realRun() throws InterruptedException {
1522	>	latch.countDown();
1523	>	}};
1524	>	}
1525	>
1526	>	class LatchAwaiter extends CheckedRunnable {
1527	>	static final int NEW = 0;
1528	>	static final int RUNNING = 1;
1529	>	static final int DONE = 2;
1530	>	final CountDownLatch latch;
1531	>	int state = NEW;
1532	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1533	>	public void realRun() throws InterruptedException {
1534	>	state = 1;
1535	>	await(latch);
1536	>	state = 2;
1537	>	}
1538	>	}
1539	>
1540	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1541	>	return new LatchAwaiter(latch);
1542	>	}
1543	>
1544	>	public void await(CountDownLatch latch, long timeoutMillis) {
1545	>	try {
1546	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1547	>	fail("timed out waiting for CountDownLatch for "
1548	>	+ (timeoutMillis/1000) + " sec");
1549	>	} catch (Throwable fail) {
1550	>	threadUnexpectedException(fail);
1551	>	}
1552	>	}
1553	>
1554	>	public void await(CountDownLatch latch) {
1555	>	await(latch, LONG_DELAY_MS);
1556	>	}
1557	>
1558	>	public void await(Semaphore semaphore) {
1559	>	try {
1560	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1561	>	fail("timed out waiting for Semaphore for "
1562	>	+ (LONG_DELAY_MS/1000) + " sec");
1563	>	} catch (Throwable fail) {
1564	>	threadUnexpectedException(fail);
1565	>	}
1566		}
1567
1568	+	//     /**
1569	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1570	+	//      */
1571	+	//     public void await(AtomicBoolean flag) {
1572	+	//         await(flag, LONG_DELAY_MS);
1573	+	//     }
1574	+
1575	+	//     /**
1576	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1577	+	//      */
1578	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1579	+	//         long startTime = System.nanoTime();
1580	+	//         while (!flag.get()) {
1581	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1582	+	//                 throw new AssertionFailedError("timed out");
1583	+	//             Thread.yield();
1584	+	//         }
1585	+	//     }
1586	+
1587		public static class NPETask implements Callable<String> {
1588		public String call() { throw new NullPointerException(); }
1589		}
#	Line 550 | Line 1594 | public class JSR166TestCase extends Test
1594
1595		public class ShortRunnable extends CheckedRunnable {
1596		protected void realRun() throws Throwable {
1597	<	Thread.sleep(SHORT_DELAY_MS);
1597	>	delay(SHORT_DELAY_MS);
1598		}
1599		}
1600
1601		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1602		protected void realRun() throws InterruptedException {
1603	<	Thread.sleep(SHORT_DELAY_MS);
1603	>	delay(SHORT_DELAY_MS);
1604		}
1605		}
1606
1607		public class SmallRunnable extends CheckedRunnable {
1608		protected void realRun() throws Throwable {
1609	<	Thread.sleep(SMALL_DELAY_MS);
1609	>	delay(SMALL_DELAY_MS);
1610		}
1611		}
1612
1613		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1614		protected void realRun() {
1615		try {
1616	<	Thread.sleep(SMALL_DELAY_MS);
1616	>	delay(SMALL_DELAY_MS);
1617		} catch (InterruptedException ok) {}
1618		}
1619		}
1620
1621		public class SmallCallable extends CheckedCallable {
1622		protected Object realCall() throws InterruptedException {
1623	<	Thread.sleep(SMALL_DELAY_MS);
1623	>	delay(SMALL_DELAY_MS);
1624		return Boolean.TRUE;
1625		}
1626		}
1627
584	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
585	–	protected void realRun() throws InterruptedException {
586	–	Thread.sleep(SMALL_DELAY_MS);
587	–	}
588	–	}
589	–
1628		public class MediumRunnable extends CheckedRunnable {
1629		protected void realRun() throws Throwable {
1630	<	Thread.sleep(MEDIUM_DELAY_MS);
1630	>	delay(MEDIUM_DELAY_MS);
1631		}
1632		}
1633
1634		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1635		protected void realRun() throws InterruptedException {
1636	<	Thread.sleep(MEDIUM_DELAY_MS);
1636	>	delay(MEDIUM_DELAY_MS);
1637		}
1638		}
1639
1640	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1641	+	return new CheckedRunnable() {
1642	+	protected void realRun() {
1643	+	try {
1644	+	delay(timeoutMillis);
1645	+	} catch (InterruptedException ok) {}
1646	+	}};
1647	+	}
1648	+
1649		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1650		protected void realRun() {
1651		try {
1652	<	Thread.sleep(MEDIUM_DELAY_MS);
1652	>	delay(MEDIUM_DELAY_MS);
1653		} catch (InterruptedException ok) {}
1654		}
1655		}
#	Line 610 | Line 1657 | public class JSR166TestCase extends Test
1657		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1658		protected void realRun() {
1659		try {
1660	<	Thread.sleep(LONG_DELAY_MS);
1660	>	delay(LONG_DELAY_MS);
1661		} catch (InterruptedException ok) {}
1662		}
1663		}
#	Line 624 | Line 1671 | public class JSR166TestCase extends Test
1671		}
1672		}
1673
1674	+	public interface TrackedRunnable extends Runnable {
1675	+	boolean isDone();
1676	+	}
1677	+
1678	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1679	+	return new TrackedRunnable() {
1680	+	private volatile boolean done = false;
1681	+	public boolean isDone() { return done; }
1682	+	public void run() {
1683	+	try {
1684	+	delay(timeoutMillis);
1685	+	done = true;
1686	+	} catch (InterruptedException ok) {}
1687	+	}
1688	+	};
1689	+	}
1690	+
1691		public static class TrackedShortRunnable implements Runnable {
1692		public volatile boolean done = false;
1693		public void run() {
1694		try {
1695	<	Thread.sleep(SMALL_DELAY_MS);
1695	>	delay(SHORT_DELAY_MS);
1696	>	done = true;
1697	>	} catch (InterruptedException ok) {}
1698	>	}
1699	>	}
1700	>
1701	>	public static class TrackedSmallRunnable implements Runnable {
1702	>	public volatile boolean done = false;
1703	>	public void run() {
1704	>	try {
1705	>	delay(SMALL_DELAY_MS);
1706		done = true;
1707		} catch (InterruptedException ok) {}
1708		}
#	Line 638 | Line 1712 | public class JSR166TestCase extends Test
1712		public volatile boolean done = false;
1713		public void run() {
1714		try {
1715	<	Thread.sleep(MEDIUM_DELAY_MS);
1715	>	delay(MEDIUM_DELAY_MS);
1716		done = true;
1717		} catch (InterruptedException ok) {}
1718		}
#	Line 648 | Line 1722 | public class JSR166TestCase extends Test
1722		public volatile boolean done = false;
1723		public void run() {
1724		try {
1725	<	Thread.sleep(LONG_DELAY_MS);
1725	>	delay(LONG_DELAY_MS);
1726		done = true;
1727		} catch (InterruptedException ok) {}
1728		}
#	Line 665 | Line 1739 | public class JSR166TestCase extends Test
1739		public volatile boolean done = false;
1740		public Object call() {
1741		try {
1742	<	Thread.sleep(SMALL_DELAY_MS);
1742	>	delay(SMALL_DELAY_MS);
1743		done = true;
1744		} catch (InterruptedException ok) {}
1745		return Boolean.TRUE;
1746		}
1747		}
1748
1749	+	/**
1750	+	* Analog of CheckedRunnable for RecursiveAction
1751	+	*/
1752	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1753	+	protected abstract void realCompute() throws Throwable;
1754	+
1755	+	@Override protected final void compute() {
1756	+	try {
1757	+	realCompute();
1758	+	} catch (Throwable fail) {
1759	+	threadUnexpectedException(fail);
1760	+	}
1761	+	}
1762	+	}
1763	+
1764	+	/**
1765	+	* Analog of CheckedCallable for RecursiveTask
1766	+	*/
1767	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1768	+	protected abstract T realCompute() throws Throwable;
1769	+
1770	+	@Override protected final T compute() {
1771	+	try {
1772	+	return realCompute();
1773	+	} catch (Throwable fail) {
1774	+	threadUnexpectedException(fail);
1775	+	return null;
1776	+	}
1777	+	}
1778	+	}
1779
1780		/**
1781		* For use as RejectedExecutionHandler in constructors
#	Line 681 | Line 1785 | public class JSR166TestCase extends Test
1785		ThreadPoolExecutor executor) {}
1786		}
1787
1788	+	/**
1789	+	* A CyclicBarrier that uses timed await and fails with
1790	+	* AssertionFailedErrors instead of throwing checked exceptions.
1791	+	*/
1792	+	public static class CheckedBarrier extends CyclicBarrier {
1793	+	public CheckedBarrier(int parties) { super(parties); }
1794	+
1795	+	public int await() {
1796	+	try {
1797	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1798	+	} catch (TimeoutException timedOut) {
1799	+	throw new AssertionFailedError("timed out");
1800	+	} catch (Exception fail) {
1801	+	AssertionFailedError afe =
1802	+	new AssertionFailedError("Unexpected exception: " + fail);
1803	+	afe.initCause(fail);
1804	+	throw afe;
1805	+	}
1806	+	}
1807	+	}
1808	+
1809	+	void checkEmpty(BlockingQueue q) {
1810	+	try {
1811	+	assertTrue(q.isEmpty());
1812	+	assertEquals(0, q.size());
1813	+	assertNull(q.peek());
1814	+	assertNull(q.poll());
1815	+	assertNull(q.poll(0, MILLISECONDS));
1816	+	assertEquals(q.toString(), "[]");
1817	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1818	+	assertFalse(q.iterator().hasNext());
1819	+	try {
1820	+	q.element();
1821	+	shouldThrow();
1822	+	} catch (NoSuchElementException success) {}
1823	+	try {
1824	+	q.iterator().next();
1825	+	shouldThrow();
1826	+	} catch (NoSuchElementException success) {}
1827	+	try {
1828	+	q.remove();
1829	+	shouldThrow();
1830	+	} catch (NoSuchElementException success) {}
1831	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1832	+	}
1833	+
1834	+	void assertSerialEquals(Object x, Object y) {
1835	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1836	+	}
1837	+
1838	+	void assertNotSerialEquals(Object x, Object y) {
1839	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1840	+	}
1841	+
1842	+	byte[] serialBytes(Object o) {
1843	+	try {
1844	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1845	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1846	+	oos.writeObject(o);
1847	+	oos.flush();
1848	+	oos.close();
1849	+	return bos.toByteArray();
1850	+	} catch (Throwable fail) {
1851	+	threadUnexpectedException(fail);
1852	+	return new byte[0];
1853	+	}
1854	+	}
1855	+
1856	+	void assertImmutable(final Object o) {
1857	+	if (o instanceof Collection) {
1858	+	assertThrows(
1859	+	UnsupportedOperationException.class,
1860	+	new Runnable() { public void run() {
1861	+	((Collection) o).add(null);}});
1862	+	}
1863	+	}
1864	+
1865	+	@SuppressWarnings("unchecked")
1866	+	<T> T serialClone(T o) {
1867	+	try {
1868	+	ObjectInputStream ois = new ObjectInputStream
1869	+	(new ByteArrayInputStream(serialBytes(o)));
1870	+	T clone = (T) ois.readObject();
1871	+	if (o == clone) assertImmutable(o);
1872	+	assertSame(o.getClass(), clone.getClass());
1873	+	return clone;
1874	+	} catch (Throwable fail) {
1875	+	threadUnexpectedException(fail);
1876	+	return null;
1877	+	}
1878	+	}
1879	+
1880	+	/**
1881	+	* A version of serialClone that leaves error handling (for
1882	+	* e.g. NotSerializableException) up to the caller.
1883	+	*/
1884	+	@SuppressWarnings("unchecked")
1885	+	<T> T serialClonePossiblyFailing(T o)
1886	+	throws ReflectiveOperationException, java.io.IOException {
1887	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1888	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1889	+	oos.writeObject(o);
1890	+	oos.flush();
1891	+	oos.close();
1892	+	ObjectInputStream ois = new ObjectInputStream
1893	+	(new ByteArrayInputStream(bos.toByteArray()));
1894	+	T clone = (T) ois.readObject();
1895	+	if (o == clone) assertImmutable(o);
1896	+	assertSame(o.getClass(), clone.getClass());
1897	+	return clone;
1898	+	}
1899	+
1900	+	/**
1901	+	* If o implements Cloneable and has a public clone method,
1902	+	* returns a clone of o, else null.
1903	+	*/
1904	+	@SuppressWarnings("unchecked")
1905	+	<T> T cloneableClone(T o) {
1906	+	if (!(o instanceof Cloneable)) return null;
1907	+	final T clone;
1908	+	try {
1909	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1910	+	} catch (NoSuchMethodException ok) {
1911	+	return null;
1912	+	} catch (ReflectiveOperationException unexpected) {
1913	+	throw new Error(unexpected);
1914	+	}
1915	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1916	+	assertSame(o.getClass(), clone.getClass());
1917	+	return clone;
1918	+	}
1919	+
1920	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1921	+	Runnable... throwingActions) {
1922	+	for (Runnable throwingAction : throwingActions) {
1923	+	boolean threw = false;
1924	+	try { throwingAction.run(); }
1925	+	catch (Throwable t) {
1926	+	threw = true;
1927	+	if (!expectedExceptionClass.isInstance(t)) {
1928	+	AssertionFailedError afe =
1929	+	new AssertionFailedError
1930	+	("Expected " + expectedExceptionClass.getName() +
1931	+	", got " + t.getClass().getName());
1932	+	afe.initCause(t);
1933	+	threadUnexpectedException(afe);
1934	+	}
1935	+	}
1936	+	if (!threw)
1937	+	shouldThrow(expectedExceptionClass.getName());
1938	+	}
1939	+	}
1940	+
1941	+	public void assertIteratorExhausted(Iterator<?> it) {
1942	+	try {
1943	+	it.next();
1944	+	shouldThrow();
1945	+	} catch (NoSuchElementException success) {}
1946	+	assertFalse(it.hasNext());
1947	+	}
1948	+
1949	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1950	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1951	+	}
1952	+
1953	+	public Runnable runnableThrowing(final RuntimeException ex) {
1954	+	return new Runnable() { public void run() { throw ex; }};
1955	+	}
1956	+
1957	+	/** A reusable thread pool to be shared by tests. */
1958	+	static final ExecutorService cachedThreadPool =
1959	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1960	+	1000L, MILLISECONDS,
1961	+	new SynchronousQueue<Runnable>());
1962	+
1963	+	static <T> void shuffle(T[] array) {
1964	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1965	+	}
1966		}

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