ViewVC Help

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

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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.48 by jsr166, Tue Dec 1 22:51:44 2009 UTC vs.
Revision 1.249 by jsr166, Sat Nov 24 21:41:20 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.Deque;
70	>	import java.util.Enumeration;
71	>	import java.util.HashSet;
72	>	import java.util.Iterator;
73	>	import java.util.List;
74	>	import java.util.NoSuchElementException;
75	>	import java.util.PropertyPermission;
76	>	import java.util.Set;
77	>	import java.util.concurrent.BlockingQueue;
78	>	import java.util.concurrent.Callable;
79	>	import java.util.concurrent.CountDownLatch;
80	>	import java.util.concurrent.CyclicBarrier;
81	>	import java.util.concurrent.ExecutionException;
82	>	import java.util.concurrent.Executor;
83	>	import java.util.concurrent.Executors;
84	>	import java.util.concurrent.ExecutorService;
85	>	import java.util.concurrent.ForkJoinPool;
86	>	import java.util.concurrent.Future;
87	>	import java.util.concurrent.FutureTask;
88	>	import java.util.concurrent.RecursiveAction;
89	>	import java.util.concurrent.RecursiveTask;
90	>	import java.util.concurrent.RejectedExecutionException;
91	>	import java.util.concurrent.RejectedExecutionHandler;
92	>	import java.util.concurrent.Semaphore;
93	>	import java.util.concurrent.ScheduledExecutorService;
94	>	import java.util.concurrent.ScheduledFuture;
95	>	import java.util.concurrent.SynchronousQueue;
96	>	import java.util.concurrent.ThreadFactory;
97	>	import java.util.concurrent.ThreadLocalRandom;
98	>	import java.util.concurrent.ThreadPoolExecutor;
99	>	import java.util.concurrent.TimeUnit;
100	>	import java.util.concurrent.TimeoutException;
101	>	import java.util.concurrent.atomic.AtomicBoolean;
102	>	import java.util.concurrent.atomic.AtomicReference;
103	>	import java.util.regex.Pattern;
104	>
105	>	import junit.framework.Test;
106	>	import junit.framework.TestCase;
107	>	import junit.framework.TestResult;
108	>	import junit.framework.TestSuite;
109
110		/**
111		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 117 | import java.security.*;
117		*
118		* <ol>
119		*
120	<	* <li> All assertions in code running in generated threads must use
121	<	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
122	<	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
123	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
124	<	* particularly recommended) for other code to use these forms too.
125	<	* Only the most typically used JUnit assertion methods are defined
126	<	* this way, but enough to live with.</li>
120	>	* <li>All code not running in the main test thread (manually spawned threads
121	>	* or the common fork join pool) must be checked for failure (and completion!).
122	>	* Mechanisms that can be used to ensure this are:
123	>	*   <ol>
124	>	*   <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
125	>	*    that the task completed normally, which is checked before returning from
126	>	*    the test method in the main thread.
127	>	*   <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
128	>	*    or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
129	>	*    Only the most typically used JUnit assertion methods are defined
130	>	*    this way, but enough to live with.
131	>	*   <li>Recording failure explicitly using {@link #threadUnexpectedException}
132	>	*    or {@link #threadRecordFailure}.
133	>	*   <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
134	>	*   </ol>
135		*
136	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
137	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
136	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
137	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
138		* them. These methods are used to clear and check for thread
139	<	* assertion failures.</li>
139	>	* assertion failures.
140		*
141	<	* <li>All delays and timeouts must use one of the constants <tt>
142	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
143	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
141	>	* <li>All delays and timeouts must use one of the constants {@code
142	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
143	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
144		* discriminable from zero time, and always allows enough time for the
145		* small amounts of computation (creating a thread, calling a few
146		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
147		* is always discriminable as larger than SHORT and smaller than
148		* MEDIUM.  And so on. These constants are set to conservative values,
149		* but even so, if there is ever any doubt, they can all be increased
150	<	* in one spot to rerun tests on slower platforms.</li>
150	>	* in one spot to rerun tests on slower platforms.
151		*
152	<	* <li> All threads generated must be joined inside each test case
153	<	* method (or <tt>fail</tt> to do so) before returning from the
154	<	* method. The <tt> joinPool</tt> method can be used to do this when
155	<	* using Executors.</li>
152	>	* <li>All threads generated must be joined inside each test case
153	>	* method (or {@code fail} to do so) before returning from the
154	>	* method. The {@code joinPool} method can be used to do this when
155	>	* using Executors.
156		*
157		* </ol>
158		*
159	<	* <p> <b>Other notes</b>
159	>	* <p><b>Other notes</b>
160		* <ul>
161		*
162	<	* <li> Usually, there is one testcase method per JSR166 method
162	>	* <li>Usually, there is one testcase method per JSR166 method
163		* covering "normal" operation, and then as many exception-testing
164		* methods as there are exceptions the method can throw. Sometimes
165		* there are multiple tests per JSR166 method when the different
166		* "normal" behaviors differ significantly. And sometimes testcases
167	<	* cover multiple methods when they cannot be tested in
66	<	* isolation.</li>
167	>	* cover multiple methods when they cannot be tested in isolation.
168		*
169	<	* <li> The documentation style for testcases is to provide as javadoc
169	>	* <li>The documentation style for testcases is to provide as javadoc
170		* a simple sentence or two describing the property that the testcase
171		* method purports to test. The javadocs do not say anything about how
172	<	* the property is tested. To find out, read the code.</li>
172	>	* the property is tested. To find out, read the code.
173		*
174	<	* <li> These tests are "conformance tests", and do not attempt to
174	>	* <li>These tests are "conformance tests", and do not attempt to
175		* test throughput, latency, scalability or other performance factors
176		* (see the separate "jtreg" tests for a set intended to check these
177		* for the most central aspects of functionality.) So, most tests use
178		* the smallest sensible numbers of threads, collection sizes, etc
179	<	* needed to check basic conformance.</li>
179	>	* needed to check basic conformance.
180		*
181		* <li>The test classes currently do not declare inclusion in
182		* any particular package to simplify things for people integrating
183	<	* them in TCK test suites.</li>
183	>	* them in TCK test suites.
184		*
185	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
186	<	* runs all JSR166 unit tests.</li>
185	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
186	>	* runs all JSR166 unit tests.
187		*
188		* </ul>
189		*/
190		public class JSR166TestCase extends TestCase {
191	+	private static final boolean useSecurityManager =
192	+	Boolean.getBoolean("jsr166.useSecurityManager");
193	+
194	+	protected static final boolean expensiveTests =
195	+	Boolean.getBoolean("jsr166.expensiveTests");
196	+
197	+	/**
198	+	* If true, also run tests that are not part of the official tck
199	+	* because they test unspecified implementation details.
200	+	*/
201	+	protected static final boolean testImplementationDetails =
202	+	Boolean.getBoolean("jsr166.testImplementationDetails");
203	+
204	+	/**
205	+	* If true, report on stdout all "slow" tests, that is, ones that
206	+	* take more than profileThreshold milliseconds to execute.
207	+	*/
208	+	private static final boolean profileTests =
209	+	Boolean.getBoolean("jsr166.profileTests");
210	+
211	+	/**
212	+	* The number of milliseconds that tests are permitted for
213	+	* execution without being reported, when profileTests is set.
214	+	*/
215	+	private static final long profileThreshold =
216	+	Long.getLong("jsr166.profileThreshold", 100);
217	+
218	+	/**
219	+	* The number of repetitions per test (for tickling rare bugs).
220	+	*/
221	+	private static final int runsPerTest =
222	+	Integer.getInteger("jsr166.runsPerTest", 1);
223	+
224	+	/**
225	+	* The number of repetitions of the test suite (for finding leaks?).
226	+	*/
227	+	private static final int suiteRuns =
228	+	Integer.getInteger("jsr166.suiteRuns", 1);
229	+
230	+	/**
231	+	* Returns the value of the system property, or NaN if not defined.
232	+	*/
233	+	private static float systemPropertyValue(String name) {
234	+	String floatString = System.getProperty(name);
235	+	if (floatString == null)
236	+	return Float.NaN;
237	+	try {
238	+	return Float.parseFloat(floatString);
239	+	} catch (NumberFormatException ex) {
240	+	throw new IllegalArgumentException(
241	+	String.format("Bad float value in system property %s=%s",
242	+	name, floatString));
243	+	}
244	+	}
245	+
246	+	/**
247	+	* The scaling factor to apply to standard delays used in tests.
248	+	* May be initialized from any of:
249	+	* - the "jsr166.delay.factor" system property
250	+	* - the "test.timeout.factor" system property (as used by jtreg)
251	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
252	+	* - hard-coded fuzz factor when using a known slowpoke VM
253	+	*/
254	+	private static final float delayFactor = delayFactor();
255	+
256	+	private static float delayFactor() {
257	+	float x;
258	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
259	+	return x;
260	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
261	+	return x;
262	+	String prop = System.getProperty("java.vm.version");
263	+	if (prop != null && prop.matches(".*debug.*"))
264	+	return 4.0f; // How much slower is fastdebug than product?!
265	+	return 1.0f;
266	+	}
267	+
268	+	public JSR166TestCase() { super(); }
269	+	public JSR166TestCase(String name) { super(name); }
270	+
271	+	/**
272	+	* A filter for tests to run, matching strings of the form
273	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
274	+	* Usefully combined with jsr166.runsPerTest.
275	+	*/
276	+	private static final Pattern methodFilter = methodFilter();
277	+
278	+	private static Pattern methodFilter() {
279	+	String regex = System.getProperty("jsr166.methodFilter");
280	+	return (regex == null) ? null : Pattern.compile(regex);
281	+	}
282	+
283	+	// Instrumentation to debug very rare, but very annoying hung test runs.
284	+	static volatile TestCase currentTestCase;
285	+	// static volatile int currentRun = 0;
286	+	static {
287	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
288	+	// Avoid spurious reports with enormous runsPerTest.
289	+	// A single test case run should never take more than 1 second.
290	+	// But let's cap it at the high end too ...
291	+	final int timeoutMinutes =
292	+	Math.min(15, Math.max(runsPerTest / 60, 1));
293	+	for (TestCase lastTestCase = currentTestCase;;) {
294	+	try { MINUTES.sleep(timeoutMinutes); }
295	+	catch (InterruptedException unexpected) { break; }
296	+	if (lastTestCase == currentTestCase) {
297	+	System.err.printf(
298	+	"Looks like we're stuck running test: %s%n",
299	+	lastTestCase);
300	+	//                     System.err.printf(
301	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
302	+	//                         lastTestCase, currentRun, runsPerTest);
303	+	//                     System.err.println("availableProcessors=" +
304	+	//                         Runtime.getRuntime().availableProcessors());
305	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
306	+	dumpTestThreads();
307	+	// one stack dump is probably enough; more would be spam
308	+	break;
309	+	}
310	+	lastTestCase = currentTestCase;
311	+	}}};
312	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
313	+	thread.setDaemon(true);
314	+	thread.start();
315	+	}
316	+
317	+	//     public static String cpuModel() {
318	+	//         try {
319	+	//             java.util.regex.Matcher matcher
320	+	//               = Pattern.compile("model name\\s*: (.*)")
321	+	//                 .matcher(new String(
322	+	//                     java.nio.file.Files.readAllBytes(
323	+	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
324	+	//             matcher.find();
325	+	//             return matcher.group(1);
326	+	//         } catch (Exception ex) { return null; }
327	+	//     }
328	+
329	+	public void runBare() throws Throwable {
330	+	currentTestCase = this;
331	+	if (methodFilter == null
332	+	|| methodFilter.matcher(toString()).find())
333	+	super.runBare();
334	+	}
335	+
336	+	protected void runTest() throws Throwable {
337	+	for (int i = 0; i < runsPerTest; i++) {
338	+	// currentRun = i;
339	+	if (profileTests)
340	+	runTestProfiled();
341	+	else
342	+	super.runTest();
343	+	}
344	+	}
345	+
346	+	protected void runTestProfiled() throws Throwable {
347	+	for (int i = 0; i < 2; i++) {
348	+	long startTime = System.nanoTime();
349	+	super.runTest();
350	+	long elapsedMillis = millisElapsedSince(startTime);
351	+	if (elapsedMillis < profileThreshold)
352	+	break;
353	+	// Never report first run of any test; treat it as a
354	+	// warmup run, notably to trigger all needed classloading,
355	+	if (i > 0)
356	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
357	+	}
358	+	}
359	+
360		/**
361	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
361	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
362		*/
363		public static void main(String[] args) {
364	<	int iters = 1;
365	<	if (args.length > 0)
366	<	iters = Integer.parseInt(args[0]);
367	<	Test s = suite();
368	<	for (int i = 0; i < iters; ++i) {
369	<	junit.textui.TestRunner.run(s);
364	>	main(suite(), args);
365	>	}
366	>
367	>	static class PithyResultPrinter extends junit.textui.ResultPrinter {
368	>	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
369	>	long runTime;
370	>	public void startTest(Test test) {}
371	>	protected void printHeader(long runTime) {
372	>	this.runTime = runTime; // defer printing for later
373	>	}
374	>	protected void printFooter(TestResult result) {
375	>	if (result.wasSuccessful()) {
376	>	getWriter().println("OK (" + result.runCount() + " tests)"
377	>	+ "  Time: " + elapsedTimeAsString(runTime));
378	>	} else {
379	>	getWriter().println("Time: " + elapsedTimeAsString(runTime));
380	>	super.printFooter(result);
381	>	}
382	>	}
383	>	}
384	>
385	>	/**
386	>	* Returns a TestRunner that doesn't bother with unnecessary
387	>	* fluff, like printing a "." for each test case.
388	>	*/
389	>	static junit.textui.TestRunner newPithyTestRunner() {
390	>	junit.textui.TestRunner runner = new junit.textui.TestRunner();
391	>	runner.setPrinter(new PithyResultPrinter(System.out));
392	>	return runner;
393	>	}
394	>
395	>	/**
396	>	* Runs all unit tests in the given test suite.
397	>	* Actual behavior influenced by jsr166.* system properties.
398	>	*/
399	>	static void main(Test suite, String[] args) {
400	>	if (useSecurityManager) {
401	>	System.err.println("Setting a permissive security manager");
402	>	Policy.setPolicy(permissivePolicy());
403	>	System.setSecurityManager(new SecurityManager());
404	>	}
405	>	for (int i = 0; i < suiteRuns; i++) {
406	>	TestResult result = newPithyTestRunner().doRun(suite);
407	>	if (!result.wasSuccessful())
408	>	System.exit(1);
409		System.gc();
410		System.runFinalization();
411		}
103	–	System.exit(0);
412		}
413
414	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
415	+	TestSuite suite = new TestSuite();
416	+	for (Object suiteOrClass : suiteOrClasses) {
417	+	if (suiteOrClass instanceof TestSuite)
418	+	suite.addTest((TestSuite) suiteOrClass);
419	+	else if (suiteOrClass instanceof Class)
420	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
421	+	else
422	+	throw new ClassCastException("not a test suite or class");
423	+	}
424	+	return suite;
425	+	}
426	+
427	+	public static void addNamedTestClasses(TestSuite suite,
428	+	String... testClassNames) {
429	+	for (String testClassName : testClassNames) {
430	+	try {
431	+	Class<?> testClass = Class.forName(testClassName);
432	+	Method m = testClass.getDeclaredMethod("suite");
433	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
434	+	} catch (ReflectiveOperationException e) {
435	+	throw new AssertionError("Missing test class", e);
436	+	}
437	+	}
438	+	}
439	+
440	+	public static final double JAVA_CLASS_VERSION;
441	+	public static final String JAVA_SPECIFICATION_VERSION;
442	+	static {
443	+	try {
444	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
445	+	new java.security.PrivilegedAction<Double>() {
446	+	public Double run() {
447	+	return Double.valueOf(System.getProperty("java.class.version"));}});
448	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
449	+	new java.security.PrivilegedAction<String>() {
450	+	public String run() {
451	+	return System.getProperty("java.specification.version");}});
452	+	} catch (Throwable t) {
453	+	throw new Error(t);
454	+	}
455	+	}
456	+
457	+	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
458	+	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
459	+	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
460	+	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
461	+	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
462	+	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
463	+
464		/**
465	<	* Collects all JSR166 unit tests as one suite
465	>	* Collects all JSR166 unit tests as one suite.
466		*/
467		public static Test suite() {
468	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
469	<
470	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
471	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
472	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
473	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
474	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
475	<	suite.addTest(new TestSuite(PhaserTest.class));
476	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
477	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
478	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
479	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
480	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
481	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
482	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
483	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
484	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
485	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
486	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
487	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
488	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
489	<	suite.addTest(new TestSuite(AtomicLongTest.class));
490	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
491	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
492	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
493	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
494	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
495	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
496	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
497	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
498	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
499	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
500	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
501	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
502	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
503	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
504	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
505	<	suite.addTest(new TestSuite(DelayQueueTest.class));
506	<	suite.addTest(new TestSuite(EntryTest.class));
507	<	suite.addTest(new TestSuite(ExchangerTest.class));
508	<	suite.addTest(new TestSuite(ExecutorsTest.class));
509	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
510	<	suite.addTest(new TestSuite(FutureTaskTest.class));
511	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
512	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
513	<	suite.addTest(new TestSuite(LinkedListTest.class));
514	<	suite.addTest(new TestSuite(LockSupportTest.class));
515	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
516	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
517	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
518	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
519	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
520	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
521	<	suite.addTest(new TestSuite(SemaphoreTest.class));
522	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
523	<	suite.addTest(new TestSuite(SystemTest.class));
524	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
525	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
526	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
527	<	suite.addTest(new TestSuite(ThreadTest.class));
528	<	suite.addTest(new TestSuite(TimeUnitTest.class));
529	<	suite.addTest(new TestSuite(TreeMapTest.class));
530	<	suite.addTest(new TestSuite(TreeSetTest.class));
531	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
532	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
468	>	// Java7+ test classes
469	>	TestSuite suite = newTestSuite(
470	>	ForkJoinPoolTest.suite(),
471	>	ForkJoinTaskTest.suite(),
472	>	RecursiveActionTest.suite(),
473	>	RecursiveTaskTest.suite(),
474	>	LinkedTransferQueueTest.suite(),
475	>	PhaserTest.suite(),
476	>	ThreadLocalRandomTest.suite(),
477	>	AbstractExecutorServiceTest.suite(),
478	>	AbstractQueueTest.suite(),
479	>	AbstractQueuedSynchronizerTest.suite(),
480	>	AbstractQueuedLongSynchronizerTest.suite(),
481	>	ArrayBlockingQueueTest.suite(),
482	>	ArrayDequeTest.suite(),
483	>	ArrayListTest.suite(),
484	>	AtomicBooleanTest.suite(),
485	>	AtomicIntegerArrayTest.suite(),
486	>	AtomicIntegerFieldUpdaterTest.suite(),
487	>	AtomicIntegerTest.suite(),
488	>	AtomicLongArrayTest.suite(),
489	>	AtomicLongFieldUpdaterTest.suite(),
490	>	AtomicLongTest.suite(),
491	>	AtomicMarkableReferenceTest.suite(),
492	>	AtomicReferenceArrayTest.suite(),
493	>	AtomicReferenceFieldUpdaterTest.suite(),
494	>	AtomicReferenceTest.suite(),
495	>	AtomicStampedReferenceTest.suite(),
496	>	ConcurrentHashMapTest.suite(),
497	>	ConcurrentLinkedDequeTest.suite(),
498	>	ConcurrentLinkedQueueTest.suite(),
499	>	ConcurrentSkipListMapTest.suite(),
500	>	ConcurrentSkipListSubMapTest.suite(),
501	>	ConcurrentSkipListSetTest.suite(),
502	>	ConcurrentSkipListSubSetTest.suite(),
503	>	CopyOnWriteArrayListTest.suite(),
504	>	CopyOnWriteArraySetTest.suite(),
505	>	CountDownLatchTest.suite(),
506	>	CountedCompleterTest.suite(),
507	>	CyclicBarrierTest.suite(),
508	>	DelayQueueTest.suite(),
509	>	EntryTest.suite(),
510	>	ExchangerTest.suite(),
511	>	ExecutorsTest.suite(),
512	>	ExecutorCompletionServiceTest.suite(),
513	>	FutureTaskTest.suite(),
514	>	LinkedBlockingDequeTest.suite(),
515	>	LinkedBlockingQueueTest.suite(),
516	>	LinkedListTest.suite(),
517	>	LockSupportTest.suite(),
518	>	PriorityBlockingQueueTest.suite(),
519	>	PriorityQueueTest.suite(),
520	>	ReentrantLockTest.suite(),
521	>	ReentrantReadWriteLockTest.suite(),
522	>	ScheduledExecutorTest.suite(),
523	>	ScheduledExecutorSubclassTest.suite(),
524	>	SemaphoreTest.suite(),
525	>	SynchronousQueueTest.suite(),
526	>	SystemTest.suite(),
527	>	ThreadLocalTest.suite(),
528	>	ThreadPoolExecutorTest.suite(),
529	>	ThreadPoolExecutorSubclassTest.suite(),
530	>	ThreadTest.suite(),
531	>	TimeUnitTest.suite(),
532	>	TreeMapTest.suite(),
533	>	TreeSetTest.suite(),
534	>	TreeSubMapTest.suite(),
535	>	TreeSubSetTest.suite(),
536	>	VectorTest.suite());
537	>
538	>	// Java8+ test classes
539	>	if (atLeastJava8()) {
540	>	String[] java8TestClassNames = {
541	>	"ArrayDeque8Test",
542	>	"Atomic8Test",
543	>	"CompletableFutureTest",
544	>	"ConcurrentHashMap8Test",
545	>	"CountedCompleter8Test",
546	>	"DoubleAccumulatorTest",
547	>	"DoubleAdderTest",
548	>	"ForkJoinPool8Test",
549	>	"ForkJoinTask8Test",
550	>	"HashMapTest",
551	>	"LinkedBlockingDeque8Test",
552	>	"LinkedBlockingQueue8Test",
553	>	"LongAccumulatorTest",
554	>	"LongAdderTest",
555	>	"SplittableRandomTest",
556	>	"StampedLockTest",
557	>	"SubmissionPublisherTest",
558	>	"ThreadLocalRandom8Test",
559	>	"TimeUnit8Test",
560	>	};
561	>	addNamedTestClasses(suite, java8TestClassNames);
562	>	}
563	>
564	>	// Java9+ test classes
565	>	if (atLeastJava9()) {
566	>	String[] java9TestClassNames = {
567	>	"AtomicBoolean9Test",
568	>	"AtomicInteger9Test",
569	>	"AtomicIntegerArray9Test",
570	>	"AtomicLong9Test",
571	>	"AtomicLongArray9Test",
572	>	"AtomicReference9Test",
573	>	"AtomicReferenceArray9Test",
574	>	"ExecutorCompletionService9Test",
575	>	"ForkJoinPool9Test",
576	>	};
577	>	addNamedTestClasses(suite, java9TestClassNames);
578	>	}
579
580		return suite;
581		}
582
583	+	/** Returns list of junit-style test method names in given class. */
584	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
585	+	Method[] methods = testClass.getDeclaredMethods();
586	+	ArrayList<String> names = new ArrayList<>(methods.length);
587	+	for (Method method : methods) {
588	+	if (method.getName().startsWith("test")
589	+	&& Modifier.isPublic(method.getModifiers())
590	+	// method.getParameterCount() requires jdk8+
591	+	&& method.getParameterTypes().length == 0) {
592	+	names.add(method.getName());
593	+	}
594	+	}
595	+	return names;
596	+	}
597	+
598	+	/**
599	+	* Returns junit-style testSuite for the given test class, but
600	+	* parameterized by passing extra data to each test.
601	+	*/
602	+	public static <ExtraData> Test parameterizedTestSuite
603	+	(Class<? extends JSR166TestCase> testClass,
604	+	Class<ExtraData> dataClass,
605	+	ExtraData data) {
606	+	try {
607	+	TestSuite suite = new TestSuite();
608	+	Constructor c =
609	+	testClass.getDeclaredConstructor(dataClass, String.class);
610	+	for (String methodName : testMethodNames(testClass))
611	+	suite.addTest((Test) c.newInstance(data, methodName));
612	+	return suite;
613	+	} catch (ReflectiveOperationException e) {
614	+	throw new AssertionError(e);
615	+	}
616	+	}
617	+
618	+	/**
619	+	* Returns junit-style testSuite for the jdk8 extension of the
620	+	* given test class, but parameterized by passing extra data to
621	+	* each test.  Uses reflection to allow compilation in jdk7.
622	+	*/
623	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
624	+	(Class<? extends JSR166TestCase> testClass,
625	+	Class<ExtraData> dataClass,
626	+	ExtraData data) {
627	+	if (atLeastJava8()) {
628	+	String name = testClass.getName();
629	+	String name8 = name.replaceAll("Test$", "8Test");
630	+	if (name.equals(name8)) throw new AssertionError(name);
631	+	try {
632	+	return (Test)
633	+	Class.forName(name8)
634	+	.getMethod("testSuite", dataClass)
635	+	.invoke(null, data);
636	+	} catch (ReflectiveOperationException e) {
637	+	throw new AssertionError(e);
638	+	}
639	+	} else {
640	+	return new TestSuite();
641	+	}
642	+	}
643	+
644	+	// Delays for timing-dependent tests, in milliseconds.
645
646		public static long SHORT_DELAY_MS;
647		public static long SMALL_DELAY_MS;
648		public static long MEDIUM_DELAY_MS;
649		public static long LONG_DELAY_MS;
650
651	+	private static final long RANDOM_TIMEOUT;
652	+	private static final long RANDOM_EXPIRED_TIMEOUT;
653	+	private static final TimeUnit RANDOM_TIMEUNIT;
654	+	static {
655	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
656	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
657	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
658	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
659	+	TimeUnit[] timeUnits = TimeUnit.values();
660	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
661	+	}
662
663		/**
664	<	* Returns the shortest timed delay. This could
665	<	* be reimplemented to use for example a Property.
664	>	* Returns a timeout for use when any value at all will do.
665	>	*/
666	>	static long randomTimeout() { return RANDOM_TIMEOUT; }
667	>
668	>	/**
669	>	* Returns a timeout that means "no waiting", i.e. not positive.
670	>	*/
671	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
672	>
673	>	/**
674	>	* Returns a random non-null TimeUnit.
675	>	*/
676	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
677	>
678	>	/**
679	>	* Returns the shortest timed delay. This can be scaled up for
680	>	* slow machines using the jsr166.delay.factor system property,
681	>	* or via jtreg's -timeoutFactor: flag.
682	>	* http://openjdk.java.net/jtreg/command-help.html
683		*/
684		protected long getShortDelay() {
685	<	return 50;
685	>	return (long) (50 * delayFactor);
686		}
687
194	–
688		/**
689		* Sets delays as multiples of SHORT_DELAY.
690		*/
691		protected void setDelays() {
692		SHORT_DELAY_MS = getShortDelay();
693	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
693	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
694		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
695	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
695	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
696	>	}
697	>
698	>	private static final long TIMEOUT_DELAY_MS
699	>	= (long) (12.0 * Math.cbrt(delayFactor));
700	>
701	>	/**
702	>	* Returns a timeout in milliseconds to be used in tests that verify
703	>	* that operations block or time out.  We want this to be longer
704	>	* than the OS scheduling quantum, but not too long, so don't scale
705	>	* linearly with delayFactor; we use "crazy" cube root instead.
706	>	*/
707	>	static long timeoutMillis() {
708	>	return TIMEOUT_DELAY_MS;
709	>	}
710	>
711	>	/**
712	>	* Returns a new Date instance representing a time at least
713	>	* delayMillis milliseconds in the future.
714	>	*/
715	>	Date delayedDate(long delayMillis) {
716	>	// Add 1 because currentTimeMillis is known to round into the past.
717	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
718		}
719
720		/**
721	<	* Flag set true if any threadAssert methods fail
721	>	* The first exception encountered if any threadAssertXXX method fails.
722		*/
723	<	volatile boolean threadFailed;
723	>	private final AtomicReference<Throwable> threadFailure
724	>	= new AtomicReference<>(null);
725
726		/**
727	<	* Initializes test to indicate that no thread assertions have failed
727	>	* Records an exception so that it can be rethrown later in the test
728	>	* harness thread, triggering a test case failure.  Only the first
729	>	* failure is recorded; subsequent calls to this method from within
730	>	* the same test have no effect.
731		*/
732	+	public void threadRecordFailure(Throwable t) {
733	+	System.err.println(t);
734	+	dumpTestThreads();
735	+	threadFailure.compareAndSet(null, t);
736	+	}
737	+
738		public void setUp() {
739		setDelays();
740	<	threadFailed = false;
740	>	}
741	>
742	>	void tearDownFail(String format, Object... args) {
743	>	String msg = toString() + ": " + String.format(format, args);
744	>	System.err.println(msg);
745	>	dumpTestThreads();
746	>	throw new AssertionError(msg);
747		}
748
749		/**
750	<	* Triggers test case failure if any thread assertions have failed
751	<	*/
752	<	public void tearDown() {
753	<	assertFalse(threadFailed);
750	>	* Extra checks that get done for all test cases.
751	>	*
752	>	* Triggers test case failure if any thread assertions have failed,
753	>	* by rethrowing, in the test harness thread, any exception recorded
754	>	* earlier by threadRecordFailure.
755	>	*
756	>	* Triggers test case failure if interrupt status is set in the main thread.
757	>	*/
758	>	public void tearDown() throws Exception {
759	>	Throwable t = threadFailure.getAndSet(null);
760	>	if (t != null) {
761	>	if (t instanceof Error)
762	>	throw (Error) t;
763	>	else if (t instanceof RuntimeException)
764	>	throw (RuntimeException) t;
765	>	else if (t instanceof Exception)
766	>	throw (Exception) t;
767	>	else
768	>	throw new AssertionError(t.toString(), t);
769	>	}
770	>
771	>	if (Thread.interrupted())
772	>	tearDownFail("interrupt status set in main thread");
773	>
774	>	checkForkJoinPoolThreadLeaks();
775	>	}
776	>
777	>	/**
778	>	* Finds missing PoolCleaners
779	>	*/
780	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
781	>	Thread[] survivors = new Thread[7];
782	>	int count = Thread.enumerate(survivors);
783	>	for (int i = 0; i < count; i++) {
784	>	Thread thread = survivors[i];
785	>	String name = thread.getName();
786	>	if (name.startsWith("ForkJoinPool-")) {
787	>	// give thread some time to terminate
788	>	thread.join(LONG_DELAY_MS);
789	>	if (thread.isAlive())
790	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
791	>	thread);
792	>	}
793	>	}
794	>
795	>	if (!ForkJoinPool.commonPool()
796	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
797	>	tearDownFail("ForkJoin common pool thread stuck");
798		}
799
800		/**
801	<	* Fail, also setting status to indicate current testcase should fail
801	>	* Just like fail(reason), but additionally recording (using
802	>	* threadRecordFailure) any AssertionError thrown, so that the
803	>	* current testcase will fail.
804		*/
805		public void threadFail(String reason) {
806	<	threadFailed = true;
807	<	fail(reason);
806	>	try {
807	>	fail(reason);
808	>	} catch (AssertionError fail) {
809	>	threadRecordFailure(fail);
810	>	throw fail;
811	>	}
812		}
813
814		/**
815	<	* If expression not true, set status to indicate current testcase
816	<	* should fail
815	>	* Just like assertTrue(b), but additionally recording (using
816	>	* threadRecordFailure) any AssertionError thrown, so that the
817	>	* current testcase will fail.
818		*/
819		public void threadAssertTrue(boolean b) {
820	<	if (!b) {
239	<	threadFailed = true;
820	>	try {
821		assertTrue(b);
822	+	} catch (AssertionError fail) {
823	+	threadRecordFailure(fail);
824	+	throw fail;
825		}
826		}
827
828		/**
829	<	* If expression not false, set status to indicate current testcase
830	<	* should fail
829	>	* Just like assertFalse(b), but additionally recording (using
830	>	* threadRecordFailure) any AssertionError thrown, so that the
831	>	* current testcase will fail.
832		*/
833		public void threadAssertFalse(boolean b) {
834	<	if (b) {
250	<	threadFailed = true;
834	>	try {
835		assertFalse(b);
836	+	} catch (AssertionError fail) {
837	+	threadRecordFailure(fail);
838	+	throw fail;
839		}
840		}
841
842		/**
843	<	* If argument not null, set status to indicate current testcase
844	<	* should fail
843	>	* Just like assertNull(x), but additionally recording (using
844	>	* threadRecordFailure) any AssertionError thrown, so that the
845	>	* current testcase will fail.
846		*/
847		public void threadAssertNull(Object x) {
848	<	if (x != null) {
261	<	threadFailed = true;
848	>	try {
849		assertNull(x);
850	+	} catch (AssertionError fail) {
851	+	threadRecordFailure(fail);
852	+	throw fail;
853		}
854		}
855
856		/**
857	<	* If arguments not equal, set status to indicate current testcase
858	<	* should fail
857	>	* Just like assertEquals(x, y), but additionally recording (using
858	>	* threadRecordFailure) any AssertionError thrown, so that the
859	>	* current testcase will fail.
860		*/
861		public void threadAssertEquals(long x, long y) {
862	<	if (x != y) {
272	<	threadFailed = true;
862	>	try {
863		assertEquals(x, y);
864	+	} catch (AssertionError fail) {
865	+	threadRecordFailure(fail);
866	+	throw fail;
867		}
868		}
869
870		/**
871	<	* If arguments not equal, set status to indicate current testcase
872	<	* should fail
871	>	* Just like assertEquals(x, y), but additionally recording (using
872	>	* threadRecordFailure) any AssertionError thrown, so that the
873	>	* current testcase will fail.
874		*/
875		public void threadAssertEquals(Object x, Object y) {
876	<	if (x != y && (x == null || !x.equals(y))) {
283	<	threadFailed = true;
876	>	try {
877		assertEquals(x, y);
878	+	} catch (AssertionError fail) {
879	+	threadRecordFailure(fail);
880	+	throw fail;
881	+	} catch (Throwable fail) {
882	+	threadUnexpectedException(fail);
883		}
884		}
885
886		/**
887	<	* threadFail with message "should throw exception"
887	>	* Just like assertSame(x, y), but additionally recording (using
888	>	* threadRecordFailure) any AssertionError thrown, so that the
889	>	* current testcase will fail.
890	>	*/
891	>	public void threadAssertSame(Object x, Object y) {
892	>	try {
893	>	assertSame(x, y);
894	>	} catch (AssertionError fail) {
895	>	threadRecordFailure(fail);
896	>	throw fail;
897	>	}
898	>	}
899	>
900	>	/**
901	>	* Calls threadFail with message "should throw exception".
902		*/
903		public void threadShouldThrow() {
904	<	threadFailed = true;
293	<	fail("should throw exception");
904	>	threadFail("should throw exception");
905		}
906
907		/**
908	<	* threadFail with message "should throw" + exceptionName
908	>	* Calls threadFail with message "should throw" + exceptionName.
909		*/
910		public void threadShouldThrow(String exceptionName) {
911	<	threadFailed = true;
912	<	fail("should throw " + exceptionName);
911	>	threadFail("should throw " + exceptionName);
912	>	}
913	>
914	>	/**
915	>	* Records the given exception using {@link #threadRecordFailure},
916	>	* then rethrows the exception, wrapping it in an AssertionError
917	>	* if necessary.
918	>	*/
919	>	public void threadUnexpectedException(Throwable t) {
920	>	threadRecordFailure(t);
921	>	t.printStackTrace();
922	>	if (t instanceof RuntimeException)
923	>	throw (RuntimeException) t;
924	>	else if (t instanceof Error)
925	>	throw (Error) t;
926	>	else
927	>	throw new AssertionError("unexpected exception: " + t, t);
928	>	}
929	>
930	>	/**
931	>	* Delays, via Thread.sleep, for the given millisecond delay, but
932	>	* if the sleep is shorter than specified, may re-sleep or yield
933	>	* until time elapses.  Ensures that the given time, as measured
934	>	* by System.nanoTime(), has elapsed.
935	>	*/
936	>	static void delay(long millis) throws InterruptedException {
937	>	long nanos = millis * (1000 * 1000);
938	>	final long wakeupTime = System.nanoTime() + nanos;
939	>	do {
940	>	if (millis > 0L)
941	>	Thread.sleep(millis);
942	>	else // too short to sleep
943	>	Thread.yield();
944	>	nanos = wakeupTime - System.nanoTime();
945	>	millis = nanos / (1000 * 1000);
946	>	} while (nanos >= 0L);
947		}
948
949		/**
950	<	* threadFail with message "Unexpected exception"
950	>	* Allows use of try-with-resources with per-test thread pools.
951		*/
952	<	public void threadUnexpectedException() {
953	<	threadFailed = true;
954	<	fail("Unexpected exception");
952	>	class PoolCleaner implements AutoCloseable {
953	>	private final ExecutorService pool;
954	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
955	>	public void close() { joinPool(pool); }
956		}
957
958		/**
959	<	* threadFail with message "Unexpected exception", with argument
959	>	* An extension of PoolCleaner that has an action to release the pool.
960		*/
961	<	public void threadUnexpectedException(Throwable ex) {
962	<	threadFailed = true;
963	<	ex.printStackTrace();
964	<	fail("Unexpected exception: " + ex);
961	>	class PoolCleanerWithReleaser extends PoolCleaner {
962	>	private final Runnable releaser;
963	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
964	>	super(pool);
965	>	this.releaser = releaser;
966	>	}
967	>	public void close() {
968	>	try {
969	>	releaser.run();
970	>	} finally {
971	>	super.close();
972	>	}
973	>	}
974	>	}
975	>
976	>	PoolCleaner cleaner(ExecutorService pool) {
977	>	return new PoolCleaner(pool);
978	>	}
979	>
980	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
981	>	return new PoolCleanerWithReleaser(pool, releaser);
982	>	}
983	>
984	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
985	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
986	>	}
987	>
988	>	Runnable releaser(final CountDownLatch latch) {
989	>	return new Runnable() { public void run() {
990	>	do { latch.countDown(); }
991	>	while (latch.getCount() > 0);
992	>	}};
993	>	}
994	>
995	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
996	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
997	>	}
998	>
999	>	Runnable releaser(final AtomicBoolean flag) {
1000	>	return new Runnable() { public void run() { flag.set(true); }};
1001		}
1002
1003		/**
1004	<	* Wait out termination of a thread pool or fail doing so
1004	>	* Waits out termination of a thread pool or fails doing so.
1005		*/
1006	<	public void joinPool(ExecutorService exec) {
1006	>	void joinPool(ExecutorService pool) {
1007		try {
1008	<	exec.shutdown();
1009	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
1008	>	pool.shutdown();
1009	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
1010	>	try {
1011	>	threadFail("ExecutorService " + pool +
1012	>	" did not terminate in a timely manner");
1013	>	} finally {
1014	>	// last resort, for the benefit of subsequent tests
1015	>	pool.shutdownNow();
1016	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
1017	>	}
1018	>	}
1019		} catch (SecurityException ok) {
1020		// Allowed in case test doesn't have privs
1021	<	} catch (InterruptedException ie) {
1022	<	fail("Unexpected InterruptedException");
1021	>	} catch (InterruptedException fail) {
1022	>	threadFail("Unexpected InterruptedException");
1023		}
1024		}
1025
1026	+	/**
1027	+	* Like Runnable, but with the freedom to throw anything.
1028	+	* junit folks had the same idea:
1029	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1030	+	*/
1031	+	interface Action { public void run() throws Throwable; }
1032
1033		/**
1034	<	* fail with message "should throw exception"
1034	>	* Runs all the given actions in parallel, failing if any fail.
1035	>	* Useful for running multiple variants of tests that are
1036	>	* necessarily individually slow because they must block.
1037		*/
1038	<	public void shouldThrow() {
1039	<	fail("Should throw exception");
1038	>	void testInParallel(Action ... actions) {
1039	>	ExecutorService pool = Executors.newCachedThreadPool();
1040	>	try (PoolCleaner cleaner = cleaner(pool)) {
1041	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1042	>	for (final Action action : actions)
1043	>	futures.add(pool.submit(new CheckedRunnable() {
1044	>	public void realRun() throws Throwable { action.run();}}));
1045	>	for (Future<?> future : futures)
1046	>	try {
1047	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1048	>	} catch (ExecutionException ex) {
1049	>	threadUnexpectedException(ex.getCause());
1050	>	} catch (Exception ex) {
1051	>	threadUnexpectedException(ex);
1052	>	}
1053	>	}
1054		}
1055
1056		/**
1057	<	* fail with message "should throw " + exceptionName
1057	>	* A debugging tool to print stack traces of most threads, as jstack does.
1058	>	* Uninteresting threads are filtered out.
1059		*/
1060	<	public void shouldThrow(String exceptionName) {
1061	<	fail("Should throw " + exceptionName);
1060	>	static void dumpTestThreads() {
1061	>	SecurityManager sm = System.getSecurityManager();
1062	>	if (sm != null) {
1063	>	try {
1064	>	System.setSecurityManager(null);
1065	>	} catch (SecurityException giveUp) {
1066	>	return;
1067	>	}
1068	>	}
1069	>
1070	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1071	>	System.err.println("------ stacktrace dump start ------");
1072	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1073	>	final String name = info.getThreadName();
1074	>	String lockName;
1075	>	if ("Signal Dispatcher".equals(name))
1076	>	continue;
1077	>	if ("Reference Handler".equals(name)
1078	>	&& (lockName = info.getLockName()) != null
1079	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1080	>	continue;
1081	>	if ("Finalizer".equals(name)
1082	>	&& (lockName = info.getLockName()) != null
1083	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1084	>	continue;
1085	>	if ("checkForWedgedTest".equals(name))
1086	>	continue;
1087	>	System.err.print(info);
1088	>	}
1089	>	System.err.println("------ stacktrace dump end ------");
1090	>
1091	>	if (sm != null) System.setSecurityManager(sm);
1092		}
1093
1094		/**
1095	<	* fail with message "Unexpected exception"
1095	>	* Checks that thread eventually enters the expected blocked thread state.
1096	>	*/
1097	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1098	>	// always sleep at least 1 ms, with high probability avoiding
1099	>	// transitory states
1100	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1101	>	try { delay(1); }
1102	>	catch (InterruptedException fail) {
1103	>	throw new AssertionError("Unexpected InterruptedException", fail);
1104	>	}
1105	>	Thread.State s = thread.getState();
1106	>	if (s == expected)
1107	>	return;
1108	>	else if (s == Thread.State.TERMINATED)
1109	>	fail("Unexpected thread termination");
1110	>	}
1111	>	fail("timed out waiting for thread to enter thread state " + expected);
1112	>	}
1113	>
1114	>	/**
1115	>	* Checks that future.get times out, with the default timeout of
1116	>	* {@code timeoutMillis()}.
1117		*/
1118	<	public void unexpectedException() {
1119	<	fail("Unexpected exception");
1118	>	void assertFutureTimesOut(Future future) {
1119	>	assertFutureTimesOut(future, timeoutMillis());
1120		}
1121
1122		/**
1123	<	* fail with message "Unexpected exception", with argument
1123	>	* Checks that future.get times out, with the given millisecond timeout.
1124		*/
1125	<	public void unexpectedException(Throwable ex) {
1126	<	ex.printStackTrace();
1127	<	fail("Unexpected exception: " + ex);
1125	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
1126	>	long startTime = System.nanoTime();
1127	>	try {
1128	>	future.get(timeoutMillis, MILLISECONDS);
1129	>	shouldThrow();
1130	>	} catch (TimeoutException success) {
1131	>	} catch (Exception fail) {
1132	>	threadUnexpectedException(fail);
1133	>	} finally { future.cancel(true); }
1134	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1135		}
1136
1137	+	/**
1138	+	* Fails with message "should throw exception".
1139	+	*/
1140	+	public void shouldThrow() {
1141	+	fail("Should throw exception");
1142	+	}
1143	+
1144	+	/**
1145	+	* Fails with message "should throw " + exceptionName.
1146	+	*/
1147	+	public void shouldThrow(String exceptionName) {
1148	+	fail("Should throw " + exceptionName);
1149	+	}
1150	+
1151	+	/**
1152	+	* The maximum number of consecutive spurious wakeups we should
1153	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1154	+	*/
1155	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1156
1157		/**
1158		* The number of elements to place in collections, arrays, etc.
#	Line 388 | Line 1179 | public class JSR166TestCase extends Test
1179		public static final Integer m6  = new Integer(-6);
1180		public static final Integer m10 = new Integer(-10);
1181
1182	+	/**
1183	+	* Runs Runnable r with a security policy that permits precisely
1184	+	* the specified permissions.  If there is no current security
1185	+	* manager, the runnable is run twice, both with and without a
1186	+	* security manager.  We require that any security manager permit
1187	+	* getPolicy/setPolicy.
1188	+	*/
1189	+	public void runWithPermissions(Runnable r, Permission... permissions) {
1190	+	SecurityManager sm = System.getSecurityManager();
1191	+	if (sm == null) {
1192	+	r.run();
1193	+	}
1194	+	runWithSecurityManagerWithPermissions(r, permissions);
1195	+	}
1196	+
1197	+	/**
1198	+	* Runs Runnable r with a security policy that permits precisely
1199	+	* the specified permissions.  If there is no current security
1200	+	* manager, a temporary one is set for the duration of the
1201	+	* Runnable.  We require that any security manager permit
1202	+	* getPolicy/setPolicy.
1203	+	*/
1204	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1205	+	Permission... permissions) {
1206	+	SecurityManager sm = System.getSecurityManager();
1207	+	if (sm == null) {
1208	+	Policy savedPolicy = Policy.getPolicy();
1209	+	try {
1210	+	Policy.setPolicy(permissivePolicy());
1211	+	System.setSecurityManager(new SecurityManager());
1212	+	runWithSecurityManagerWithPermissions(r, permissions);
1213	+	} finally {
1214	+	System.setSecurityManager(null);
1215	+	Policy.setPolicy(savedPolicy);
1216	+	}
1217	+	} else {
1218	+	Policy savedPolicy = Policy.getPolicy();
1219	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1220	+	Policy.setPolicy(policy);
1221	+
1222	+	try {
1223	+	r.run();
1224	+	} finally {
1225	+	policy.addPermission(new SecurityPermission("setPolicy"));
1226	+	Policy.setPolicy(savedPolicy);
1227	+	}
1228	+	}
1229	+	}
1230	+
1231	+	/**
1232	+	* Runs a runnable without any permissions.
1233	+	*/
1234	+	public void runWithoutPermissions(Runnable r) {
1235	+	runWithPermissions(r);
1236	+	}
1237
1238		/**
1239		* A security policy where new permissions can be dynamically added
#	Line 395 | Line 1241 | public class JSR166TestCase extends Test
1241		*/
1242		public static class AdjustablePolicy extends java.security.Policy {
1243		Permissions perms = new Permissions();
1244	<	AdjustablePolicy() { }
1244	>	AdjustablePolicy(Permission... permissions) {
1245	>	for (Permission permission : permissions)
1246	>	perms.add(permission);
1247	>	}
1248		void addPermission(Permission perm) { perms.add(perm); }
1249		void clearPermissions() { perms = new Permissions(); }
1250		public PermissionCollection getPermissions(CodeSource cs) {
#	Line 408 | Line 1257 | public class JSR166TestCase extends Test
1257		return perms.implies(p);
1258		}
1259		public void refresh() {}
1260	+	public String toString() {
1261	+	List<Permission> ps = new ArrayList<>();
1262	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1263	+	ps.add(e.nextElement());
1264	+	return "AdjustablePolicy with permissions " + ps;
1265	+	}
1266	+	}
1267	+
1268	+	/**
1269	+	* Returns a policy containing all the permissions we ever need.
1270	+	*/
1271	+	public static Policy permissivePolicy() {
1272	+	return new AdjustablePolicy
1273	+	// Permissions j.u.c. needs directly
1274	+	(new RuntimePermission("modifyThread"),
1275	+	new RuntimePermission("getClassLoader"),
1276	+	new RuntimePermission("setContextClassLoader"),
1277	+	// Permissions needed to change permissions!
1278	+	new SecurityPermission("getPolicy"),
1279	+	new SecurityPermission("setPolicy"),
1280	+	new RuntimePermission("setSecurityManager"),
1281	+	// Permissions needed by the junit test harness
1282	+	new RuntimePermission("accessDeclaredMembers"),
1283	+	new PropertyPermission("*", "read"),
1284	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
1285	+	}
1286	+
1287	+	/**
1288	+	* Sleeps until the given time has elapsed.
1289	+	* Throws AssertionError if interrupted.
1290	+	*/
1291	+	static void sleep(long millis) {
1292	+	try {
1293	+	delay(millis);
1294	+	} catch (InterruptedException fail) {
1295	+	throw new AssertionError("Unexpected InterruptedException", fail);
1296	+	}
1297	+	}
1298	+
1299	+	/**
1300	+	* Spin-waits up to the specified number of milliseconds for the given
1301	+	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1302	+	* @param waitingForGodot if non-null, an additional condition to satisfy
1303	+	*/
1304	+	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1305	+	Callable<Boolean> waitingForGodot) {
1306	+	for (long startTime = 0L;;) {
1307	+	switch (thread.getState()) {
1308	+	case BLOCKED: case WAITING: case TIMED_WAITING:
1309	+	try {
1310	+	if (waitingForGodot == null || waitingForGodot.call())
1311	+	return;
1312	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1313	+	break;
1314	+	case TERMINATED:
1315	+	fail("Unexpected thread termination");
1316	+	}
1317	+
1318	+	if (startTime == 0L)
1319	+	startTime = System.nanoTime();
1320	+	else if (millisElapsedSince(startTime) > timeoutMillis) {
1321	+	assertTrue(thread.isAlive());
1322	+	if (waitingForGodot == null
1323	+	|| thread.getState() == Thread.State.RUNNABLE)
1324	+	fail("timed out waiting for thread to enter wait state");
1325	+	else
1326	+	fail("timed out waiting for condition, thread state="
1327	+	+ thread.getState());
1328	+	}
1329	+	Thread.yield();
1330	+	}
1331	+	}
1332	+
1333	+	/**
1334	+	* Spin-waits up to the specified number of milliseconds for the given
1335	+	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1336	+	*/
1337	+	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1338	+	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1339	+	}
1340	+
1341	+	/**
1342	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1343	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1344	+	*/
1345	+	void waitForThreadToEnterWaitState(Thread thread) {
1346	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1347	+	}
1348	+
1349	+	/**
1350	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1351	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1352	+	* and additionally satisfy the given condition.
1353	+	*/
1354	+	void waitForThreadToEnterWaitState(Thread thread,
1355	+	Callable<Boolean> waitingForGodot) {
1356	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1357	+	}
1358	+
1359	+	/**
1360	+	* Returns the number of milliseconds since time given by
1361	+	* startNanoTime, which must have been previously returned from a
1362	+	* call to {@link System#nanoTime()}.
1363	+	*/
1364	+	static long millisElapsedSince(long startNanoTime) {
1365	+	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1366		}
1367
1368	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1369	+	//         long startTime = System.nanoTime();
1370	+	//         try {
1371	+	//             r.run();
1372	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1373	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1374	+	//             throw new AssertionError("did not return promptly");
1375	+	//     }
1376	+
1377	+	//     void assertTerminatesPromptly(Runnable r) {
1378	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1379	+	//     }
1380	+
1381		/**
1382	<	* Sleep until the timeout has elapsed, or interrupted.
1383	<	* Does <em>NOT</em> throw InterruptedException.
1382	>	* Checks that timed f.get() returns the expected value, and does not
1383	>	* wait for the timeout to elapse before returning.
1384		*/
1385	<	void sleepTillInterrupted(long timeoutMillis) {
1385	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1386	>	long startTime = System.nanoTime();
1387	>	T actual = null;
1388		try {
1389	<	Thread.sleep(timeoutMillis);
1390	<	} catch (InterruptedException wakeup) {}
1389	>	actual = f.get(timeoutMillis, MILLISECONDS);
1390	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1391	>	assertEquals(expectedValue, actual);
1392	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1393	>	throw new AssertionError("timed get did not return promptly");
1394	>	}
1395	>
1396	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1397	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1398		}
1399
1400		/**
1401	<	* Returns a new started Thread running the given runnable.
1401	>	* Returns a new started daemon Thread running the given runnable.
1402		*/
1403		Thread newStartedThread(Runnable runnable) {
1404		Thread t = new Thread(runnable);
1405	+	t.setDaemon(true);
1406		t.start();
1407		return t;
1408		}
1409
1410	<	// Some convenient Runnable classes
1411	<
1412	<	public abstract class CheckedRunnable implements Runnable {
1413	<	protected abstract void realRun() throws Throwable;
1414	<
1415	<	public final void run() {
1416	<	try {
1417	<	realRun();
1418	<	} catch (Throwable t) {
1419	<	threadUnexpectedException(t);
1410	>	/**
1411	>	* Waits for the specified time (in milliseconds) for the thread
1412	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1413	>	* the thread (in the hope that it may terminate later) and fails.
1414	>	*/
1415	>	void awaitTermination(Thread t, long timeoutMillis) {
1416	>	try {
1417	>	t.join(timeoutMillis);
1418	>	} catch (InterruptedException fail) {
1419	>	threadUnexpectedException(fail);
1420	>	} finally {
1421	>	if (t.getState() != Thread.State.TERMINATED) {
1422	>	t.interrupt();
1423	>	threadFail("timed out waiting for thread to terminate");
1424		}
1425		}
1426		}
1427
1428	<	public abstract class RunnableShouldThrow implements Runnable {
1429	<	protected abstract void realRun() throws Throwable;
1428	>	/**
1429	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1430	>	* terminate (using {@link Thread#join(long)}), else interrupts
1431	>	* the thread (in the hope that it may terminate later) and fails.
1432	>	*/
1433	>	void awaitTermination(Thread t) {
1434	>	awaitTermination(t, LONG_DELAY_MS);
1435	>	}
1436
1437	<	final Class<?> exceptionClass;
1437	>	// Some convenient Runnable classes
1438
1439	<	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1440	<	this.exceptionClass = exceptionClass;
453	<	}
1439	>	public abstract class CheckedRunnable implements Runnable {
1440	>	protected abstract void realRun() throws Throwable;
1441
1442		public final void run() {
1443		try {
1444		realRun();
1445	<	threadShouldThrow(exceptionClass.getSimpleName());
1446	<	} catch (Throwable t) {
460	<	if (! exceptionClass.isInstance(t))
461	<	threadUnexpectedException(t);
1445	>	} catch (Throwable fail) {
1446	>	threadUnexpectedException(fail);
1447		}
1448		}
1449		}
#	Line 475 | Line 1460 | public class JSR166TestCase extends Test
1460		public final void run() {
1461		try {
1462		realRun();
478	–	threadShouldThrow(exceptionClass.getSimpleName());
1463		} catch (Throwable t) {
1464		if (! exceptionClass.isInstance(t))
1465		threadUnexpectedException(t);
1466	+	return;
1467		}
1468	+	threadShouldThrow(exceptionClass.getSimpleName());
1469		}
1470		}
1471
#	Line 489 | Line 1475 | public class JSR166TestCase extends Test
1475		public final void run() {
1476		try {
1477		realRun();
492	–	threadShouldThrow("InterruptedException");
1478		} catch (InterruptedException success) {
1479	<	} catch (Throwable t) {
1480	<	threadUnexpectedException(t);
1479	>	threadAssertFalse(Thread.interrupted());
1480	>	return;
1481	>	} catch (Throwable fail) {
1482	>	threadUnexpectedException(fail);
1483		}
1484	+	threadShouldThrow("InterruptedException");
1485		}
1486		}
1487
#	Line 503 | Line 1491 | public class JSR166TestCase extends Test
1491		public final T call() {
1492		try {
1493		return realCall();
1494	<	} catch (Throwable t) {
1495	<	threadUnexpectedException(t);
1494	>	} catch (Throwable fail) {
1495	>	threadUnexpectedException(fail);
1496		}
1497	<	return null;
510	<	}
511	<	}
512	<
513	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
514	<	protected abstract T realCall() throws Throwable;
515	<
516	<	public final T call() {
517	<	try {
518	<	T result = realCall();
519	<	threadShouldThrow("InterruptedException");
520	<	return result;
521	<	} catch (InterruptedException success) {
522	<	} catch (Throwable t) {
523	<	threadUnexpectedException(t);
524	<	}
525	<	return null;
1497	>	throw new AssertionError("unreached");
1498		}
1499		}
1500
#	Line 537 | Line 1509 | public class JSR166TestCase extends Test
1509		public static final String TEST_STRING = "a test string";
1510
1511		public static class StringTask implements Callable<String> {
1512	<	public String call() { return TEST_STRING; }
1512	>	final String value;
1513	>	public StringTask() { this(TEST_STRING); }
1514	>	public StringTask(String value) { this.value = value; }
1515	>	public String call() { return value; }
1516		}
1517
1518		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1519		return new CheckedCallable<String>() {
1520	<	public String realCall() {
1520	>	protected String realCall() {
1521		try {
1522		latch.await();
1523		} catch (InterruptedException quittingTime) {}
#	Line 550 | Line 1525 | public class JSR166TestCase extends Test
1525		}};
1526		}
1527
1528	<	public static class NPETask implements Callable<String> {
1529	<	public String call() { throw new NullPointerException(); }
1528	>	public Runnable countDowner(final CountDownLatch latch) {
1529	>	return new CheckedRunnable() {
1530	>	public void realRun() throws InterruptedException {
1531	>	latch.countDown();
1532	>	}};
1533		}
1534
1535	<	public static class CallableOne implements Callable<Integer> {
1536	<	public Integer call() { return one; }
1535	>	class LatchAwaiter extends CheckedRunnable {
1536	>	static final int NEW = 0;
1537	>	static final int RUNNING = 1;
1538	>	static final int DONE = 2;
1539	>	final CountDownLatch latch;
1540	>	int state = NEW;
1541	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1542	>	public void realRun() throws InterruptedException {
1543	>	state = 1;
1544	>	await(latch);
1545	>	state = 2;
1546	>	}
1547		}
1548
1549	<	public class ShortRunnable extends CheckedRunnable {
1550	<	protected void realRun() throws Throwable {
563	<	Thread.sleep(SHORT_DELAY_MS);
564	<	}
1549	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1550	>	return new LatchAwaiter(latch);
1551		}
1552
1553	<	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1554	<	protected void realRun() throws InterruptedException {
1555	<	Thread.sleep(SHORT_DELAY_MS);
1553	>	public void await(CountDownLatch latch, long timeoutMillis) {
1554	>	boolean timedOut = false;
1555	>	try {
1556	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1557	>	} catch (Throwable fail) {
1558	>	threadUnexpectedException(fail);
1559		}
1560	+	if (timedOut)
1561	+	fail("timed out waiting for CountDownLatch for "
1562	+	+ (timeoutMillis/1000) + " sec");
1563		}
1564
1565	<	public class SmallRunnable extends CheckedRunnable {
1566	<	protected void realRun() throws Throwable {
575	<	Thread.sleep(SMALL_DELAY_MS);
576	<	}
1565	>	public void await(CountDownLatch latch) {
1566	>	await(latch, LONG_DELAY_MS);
1567		}
1568
1569	<	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1570	<	protected void realRun() {
1571	<	try {
1572	<	Thread.sleep(SMALL_DELAY_MS);
1573	<	} catch (InterruptedException ok) {}
1569	>	public void await(Semaphore semaphore) {
1570	>	boolean timedOut = false;
1571	>	try {
1572	>	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1573	>	} catch (Throwable fail) {
1574	>	threadUnexpectedException(fail);
1575		}
1576	+	if (timedOut)
1577	+	fail("timed out waiting for Semaphore for "
1578	+	+ (LONG_DELAY_MS/1000) + " sec");
1579		}
1580
1581	<	public class SmallCallable extends CheckedCallable {
1582	<	protected Object realCall() throws InterruptedException {
1583	<	Thread.sleep(SMALL_DELAY_MS);
1584	<	return Boolean.TRUE;
1581	>	public void await(CyclicBarrier barrier) {
1582	>	try {
1583	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1584	>	} catch (Throwable fail) {
1585	>	threadUnexpectedException(fail);
1586		}
1587		}
1588
1589	<	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
1590	<	protected void realRun() throws InterruptedException {
1591	<	Thread.sleep(SMALL_DELAY_MS);
1592	<	}
1589	>	//     /**
1590	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1591	>	//      */
1592	>	//     public void await(AtomicBoolean flag) {
1593	>	//         await(flag, LONG_DELAY_MS);
1594	>	//     }
1595	>
1596	>	//     /**
1597	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1598	>	//      */
1599	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1600	>	//         long startTime = System.nanoTime();
1601	>	//         while (!flag.get()) {
1602	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1603	>	//                 throw new AssertionError("timed out");
1604	>	//             Thread.yield();
1605	>	//         }
1606	>	//     }
1607	>
1608	>	public static class NPETask implements Callable<String> {
1609	>	public String call() { throw new NullPointerException(); }
1610	>	}
1611	>
1612	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1613	>	return new CheckedRunnable() {
1614	>	protected void realRun() {
1615	>	try {
1616	>	delay(timeoutMillis);
1617	>	} catch (InterruptedException ok) {}
1618	>	}};
1619		}
1620
1621	<	public class MediumRunnable extends CheckedRunnable {
1622	<	protected void realRun() throws Throwable {
1623	<	Thread.sleep(MEDIUM_DELAY_MS);
1621	>	/**
1622	>	* For use as ThreadFactory in constructors
1623	>	*/
1624	>	public static class SimpleThreadFactory implements ThreadFactory {
1625	>	public Thread newThread(Runnable r) {
1626	>	return new Thread(r);
1627		}
1628		}
1629
1630	<	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1631	<	protected void realRun() throws InterruptedException {
1632	<	Thread.sleep(MEDIUM_DELAY_MS);
1630	>	public interface TrackedRunnable extends Runnable {
1631	>	boolean isDone();
1632	>	}
1633	>
1634	>	public static class TrackedNoOpRunnable implements Runnable {
1635	>	public volatile boolean done = false;
1636	>	public void run() {
1637	>	done = true;
1638		}
1639		}
1640
1641	<	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1642	<	protected void realRun() {
1641	>	/**
1642	>	* Analog of CheckedRunnable for RecursiveAction
1643	>	*/
1644	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1645	>	protected abstract void realCompute() throws Throwable;
1646	>
1647	>	@Override protected final void compute() {
1648		try {
1649	<	Thread.sleep(MEDIUM_DELAY_MS);
1650	<	} catch (InterruptedException ok) {}
1649	>	realCompute();
1650	>	} catch (Throwable fail) {
1651	>	threadUnexpectedException(fail);
1652	>	}
1653		}
1654		}
1655
1656	<	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1657	<	protected void realRun() {
1656	>	/**
1657	>	* Analog of CheckedCallable for RecursiveTask
1658	>	*/
1659	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1660	>	protected abstract T realCompute() throws Throwable;
1661	>
1662	>	@Override protected final T compute() {
1663		try {
1664	<	Thread.sleep(LONG_DELAY_MS);
1665	<	} catch (InterruptedException ok) {}
1664	>	return realCompute();
1665	>	} catch (Throwable fail) {
1666	>	threadUnexpectedException(fail);
1667	>	}
1668	>	throw new AssertionError("unreached");
1669		}
1670		}
1671
1672		/**
1673	<	* For use as ThreadFactory in constructors
1673	>	* For use as RejectedExecutionHandler in constructors
1674		*/
1675	<	public static class SimpleThreadFactory implements ThreadFactory {
1676	<	public Thread newThread(Runnable r) {
1677	<	return new Thread(r);
634	<	}
1675	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1676	>	public void rejectedExecution(Runnable r,
1677	>	ThreadPoolExecutor executor) {}
1678		}
1679
1680	<	public static class TrackedShortRunnable implements Runnable {
1681	<	public volatile boolean done = false;
1682	<	public void run() {
1680	>	/**
1681	>	* A CyclicBarrier that uses timed await and fails with
1682	>	* AssertionErrors instead of throwing checked exceptions.
1683	>	*/
1684	>	public static class CheckedBarrier extends CyclicBarrier {
1685	>	public CheckedBarrier(int parties) { super(parties); }
1686	>
1687	>	public int await() {
1688		try {
1689	<	Thread.sleep(SMALL_DELAY_MS);
1690	<	done = true;
1691	<	} catch (InterruptedException ok) {}
1689	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1690	>	} catch (TimeoutException timedOut) {
1691	>	throw new AssertionError("timed out");
1692	>	} catch (Exception fail) {
1693	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1694	>	}
1695		}
1696		}
1697
1698	<	public static class TrackedMediumRunnable implements Runnable {
1699	<	public volatile boolean done = false;
1700	<	public void run() {
1698	>	void checkEmpty(BlockingQueue q) {
1699	>	try {
1700	>	assertTrue(q.isEmpty());
1701	>	assertEquals(0, q.size());
1702	>	assertNull(q.peek());
1703	>	assertNull(q.poll());
1704	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1705	>	assertEquals(q.toString(), "[]");
1706	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1707	>	assertFalse(q.iterator().hasNext());
1708		try {
1709	<	Thread.sleep(MEDIUM_DELAY_MS);
1710	<	done = true;
1711	<	} catch (InterruptedException ok) {}
1712	<	}
1709	>	q.element();
1710	>	shouldThrow();
1711	>	} catch (NoSuchElementException success) {}
1712	>	try {
1713	>	q.iterator().next();
1714	>	shouldThrow();
1715	>	} catch (NoSuchElementException success) {}
1716	>	try {
1717	>	q.remove();
1718	>	shouldThrow();
1719	>	} catch (NoSuchElementException success) {}
1720	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1721		}
1722
1723	<	public static class TrackedLongRunnable implements Runnable {
1724	<	public volatile boolean done = false;
1725	<	public void run() {
1726	<	try {
1727	<	Thread.sleep(LONG_DELAY_MS);
1728	<	done = true;
1729	<	} catch (InterruptedException ok) {}
1723	>	void assertSerialEquals(Object x, Object y) {
1724	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1725	>	}
1726	>
1727	>	void assertNotSerialEquals(Object x, Object y) {
1728	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1729	>	}
1730	>
1731	>	byte[] serialBytes(Object o) {
1732	>	try {
1733	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1734	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1735	>	oos.writeObject(o);
1736	>	oos.flush();
1737	>	oos.close();
1738	>	return bos.toByteArray();
1739	>	} catch (Throwable fail) {
1740	>	threadUnexpectedException(fail);
1741	>	return new byte[0];
1742		}
1743		}
1744
1745	<	public static class TrackedNoOpRunnable implements Runnable {
1746	<	public volatile boolean done = false;
1747	<	public void run() {
1748	<	done = true;
1745	>	void assertImmutable(final Object o) {
1746	>	if (o instanceof Collection) {
1747	>	assertThrows(
1748	>	UnsupportedOperationException.class,
1749	>	new Runnable() { public void run() {
1750	>	((Collection) o).add(null);}});
1751		}
1752		}
1753
1754	<	public static class TrackedCallable implements Callable {
1755	<	public volatile boolean done = false;
1756	<	public Object call() {
1757	<	try {
1758	<	Thread.sleep(SMALL_DELAY_MS);
1759	<	done = true;
1760	<	} catch (InterruptedException ok) {}
1761	<	return Boolean.TRUE;
1754	>	@SuppressWarnings("unchecked")
1755	>	<T> T serialClone(T o) {
1756	>	T clone = null;
1757	>	try {
1758	>	ObjectInputStream ois = new ObjectInputStream
1759	>	(new ByteArrayInputStream(serialBytes(o)));
1760	>	clone = (T) ois.readObject();
1761	>	} catch (Throwable fail) {
1762	>	threadUnexpectedException(fail);
1763	>	}
1764	>	if (o == clone) assertImmutable(o);
1765	>	else assertSame(o.getClass(), clone.getClass());
1766	>	return clone;
1767	>	}
1768	>
1769	>	/**
1770	>	* A version of serialClone that leaves error handling (for
1771	>	* e.g. NotSerializableException) up to the caller.
1772	>	*/
1773	>	@SuppressWarnings("unchecked")
1774	>	<T> T serialClonePossiblyFailing(T o)
1775	>	throws ReflectiveOperationException, java.io.IOException {
1776	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1777	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1778	>	oos.writeObject(o);
1779	>	oos.flush();
1780	>	oos.close();
1781	>	ObjectInputStream ois = new ObjectInputStream
1782	>	(new ByteArrayInputStream(bos.toByteArray()));
1783	>	T clone = (T) ois.readObject();
1784	>	if (o == clone) assertImmutable(o);
1785	>	else assertSame(o.getClass(), clone.getClass());
1786	>	return clone;
1787	>	}
1788	>
1789	>	/**
1790	>	* If o implements Cloneable and has a public clone method,
1791	>	* returns a clone of o, else null.
1792	>	*/
1793	>	@SuppressWarnings("unchecked")
1794	>	<T> T cloneableClone(T o) {
1795	>	if (!(o instanceof Cloneable)) return null;
1796	>	final T clone;
1797	>	try {
1798	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1799	>	} catch (NoSuchMethodException ok) {
1800	>	return null;
1801	>	} catch (ReflectiveOperationException unexpected) {
1802	>	throw new Error(unexpected);
1803		}
1804	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1805	+	assertSame(o.getClass(), clone.getClass());
1806	+	return clone;
1807	+	}
1808	+
1809	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1810	+	Runnable... throwingActions) {
1811	+	for (Runnable throwingAction : throwingActions) {
1812	+	boolean threw = false;
1813	+	try { throwingAction.run(); }
1814	+	catch (Throwable t) {
1815	+	threw = true;
1816	+	if (!expectedExceptionClass.isInstance(t))
1817	+	throw new AssertionError(
1818	+	"Expected " + expectedExceptionClass.getName() +
1819	+	", got " + t.getClass().getName(),
1820	+	t);
1821	+	}
1822	+	if (!threw)
1823	+	shouldThrow(expectedExceptionClass.getName());
1824	+	}
1825	+	}
1826	+
1827	+	public void assertIteratorExhausted(Iterator<?> it) {
1828	+	try {
1829	+	it.next();
1830	+	shouldThrow();
1831	+	} catch (NoSuchElementException success) {}
1832	+	assertFalse(it.hasNext());
1833	+	}
1834	+
1835	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1836	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1837	+	}
1838	+
1839	+	public Runnable runnableThrowing(final RuntimeException ex) {
1840	+	return new Runnable() { public void run() { throw ex; }};
1841		}
1842
1843	+	/** A reusable thread pool to be shared by tests. */
1844	+	static final ExecutorService cachedThreadPool =
1845	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1846	+	1000L, MILLISECONDS,
1847	+	new SynchronousQueue<Runnable>());
1848	+
1849	+	static <T> void shuffle(T[] array) {
1850	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1851	+	}
1852
1853		/**
1854	<	* For use as RejectedExecutionHandler in constructors
1854	>	* Returns the same String as would be returned by {@link
1855	>	* Object#toString}, whether or not the given object's class
1856	>	* overrides toString().
1857	>	*
1858	>	* @see System#identityHashCode
1859		*/
1860	<	public static class NoOpREHandler implements RejectedExecutionHandler {
1861	<	public void rejectedExecution(Runnable r,
1862	<	ThreadPoolExecutor executor) {}
1860	>	static String identityString(Object x) {
1861	>	return x.getClass().getName()
1862	>	+ "@" + Integer.toHexString(System.identityHashCode(x));
1863		}
1864
1865	+	// --- Shared assertions for Executor tests ---
1866	+
1867	+	/**
1868	+	* Returns maximum number of tasks that can be submitted to given
1869	+	* pool (with bounded queue) before saturation (when submission
1870	+	* throws RejectedExecutionException).
1871	+	*/
1872	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1873	+	BlockingQueue<Runnable> q = pool.getQueue();
1874	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1875	+	}
1876	+
1877	+	@SuppressWarnings("FutureReturnValueIgnored")
1878	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1879	+	try {
1880	+	e.execute((Runnable) null);
1881	+	shouldThrow();
1882	+	} catch (NullPointerException success) {}
1883	+
1884	+	if (! (e instanceof ExecutorService)) return;
1885	+	ExecutorService es = (ExecutorService) e;
1886	+	try {
1887	+	es.submit((Runnable) null);
1888	+	shouldThrow();
1889	+	} catch (NullPointerException success) {}
1890	+	try {
1891	+	es.submit((Runnable) null, Boolean.TRUE);
1892	+	shouldThrow();
1893	+	} catch (NullPointerException success) {}
1894	+	try {
1895	+	es.submit((Callable) null);
1896	+	shouldThrow();
1897	+	} catch (NullPointerException success) {}
1898	+
1899	+	if (! (e instanceof ScheduledExecutorService)) return;
1900	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1901	+	try {
1902	+	ses.schedule((Runnable) null,
1903	+	randomTimeout(), randomTimeUnit());
1904	+	shouldThrow();
1905	+	} catch (NullPointerException success) {}
1906	+	try {
1907	+	ses.schedule((Callable) null,
1908	+	randomTimeout(), randomTimeUnit());
1909	+	shouldThrow();
1910	+	} catch (NullPointerException success) {}
1911	+	try {
1912	+	ses.scheduleAtFixedRate((Runnable) null,
1913	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1914	+	shouldThrow();
1915	+	} catch (NullPointerException success) {}
1916	+	try {
1917	+	ses.scheduleWithFixedDelay((Runnable) null,
1918	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1919	+	shouldThrow();
1920	+	} catch (NullPointerException success) {}
1921	+	}
1922	+
1923	+	void setRejectedExecutionHandler(
1924	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1925	+	p.setRejectedExecutionHandler(handler);
1926	+	assertSame(handler, p.getRejectedExecutionHandler());
1927	+	}
1928	+
1929	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1930	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1931	+	final long savedTaskCount = p.getTaskCount();
1932	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1933	+	final int savedQueueSize = p.getQueue().size();
1934	+	final boolean stock = (p.getClass().getClassLoader() == null);
1935	+
1936	+	Runnable r = () -> {};
1937	+	Callable<Boolean> c = () -> Boolean.TRUE;
1938	+
1939	+	class Recorder implements RejectedExecutionHandler {
1940	+	public volatile Runnable r = null;
1941	+	public volatile ThreadPoolExecutor p = null;
1942	+	public void reset() { r = null; p = null; }
1943	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1944	+	assertNull(this.r);
1945	+	assertNull(this.p);
1946	+	this.r = r;
1947	+	this.p = p;
1948	+	}
1949	+	}
1950	+
1951	+	// check custom handler is invoked exactly once per task
1952	+	Recorder recorder = new Recorder();
1953	+	setRejectedExecutionHandler(p, recorder);
1954	+	for (int i = 2; i--> 0; ) {
1955	+	recorder.reset();
1956	+	p.execute(r);
1957	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1958	+	assertSame(r, recorder.r);
1959	+	assertSame(p, recorder.p);
1960	+
1961	+	recorder.reset();
1962	+	assertFalse(p.submit(r).isDone());
1963	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1964	+	assertSame(p, recorder.p);
1965	+
1966	+	recorder.reset();
1967	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1968	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1969	+	assertSame(p, recorder.p);
1970	+
1971	+	recorder.reset();
1972	+	assertFalse(p.submit(c).isDone());
1973	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1974	+	assertSame(p, recorder.p);
1975	+
1976	+	if (p instanceof ScheduledExecutorService) {
1977	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1978	+	ScheduledFuture<?> future;
1979	+
1980	+	recorder.reset();
1981	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
1982	+	assertFalse(future.isDone());
1983	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1984	+	assertSame(p, recorder.p);
1985	+
1986	+	recorder.reset();
1987	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
1988	+	assertFalse(future.isDone());
1989	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1990	+	assertSame(p, recorder.p);
1991	+
1992	+	recorder.reset();
1993	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1994	+	assertFalse(future.isDone());
1995	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1996	+	assertSame(p, recorder.p);
1997	+
1998	+	recorder.reset();
1999	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2000	+	assertFalse(future.isDone());
2001	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2002	+	assertSame(p, recorder.p);
2003	+	}
2004	+	}
2005	+
2006	+	// Checking our custom handler above should be sufficient, but
2007	+	// we add some integration tests of standard handlers.
2008	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2009	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2010	+
2011	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2012	+	try {
2013	+	p.execute(setThread);
2014	+	shouldThrow();
2015	+	} catch (RejectedExecutionException success) {}
2016	+	assertNull(thread.get());
2017	+
2018	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2019	+	p.execute(setThread);
2020	+	assertNull(thread.get());
2021	+
2022	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2023	+	p.execute(setThread);
2024	+	if (p.isShutdown())
2025	+	assertNull(thread.get());
2026	+	else
2027	+	assertSame(Thread.currentThread(), thread.get());
2028	+
2029	+	setRejectedExecutionHandler(p, savedHandler);
2030	+
2031	+	// check that pool was not perturbed by handlers
2032	+	assertEquals(savedTaskCount, p.getTaskCount());
2033	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2034	+	assertEquals(savedQueueSize, p.getQueue().size());
2035	+	}
2036	+
2037	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2038	+	assertEquals(x, y);
2039	+	assertEquals(y, x);
2040	+	assertEquals(x.isEmpty(), y.isEmpty());
2041	+	assertEquals(x.size(), y.size());
2042	+	if (x instanceof List) {
2043	+	assertEquals(x.toString(), y.toString());
2044	+	}
2045	+	if (x instanceof List || x instanceof Set) {
2046	+	assertEquals(x.hashCode(), y.hashCode());
2047	+	}
2048	+	if (x instanceof List || x instanceof Deque) {
2049	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2050	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2051	+	y.toArray(new Object[0])));
2052	+	}
2053	+	}
2054	+
2055	+	/**
2056	+	* A weaker form of assertCollectionsEquals which does not insist
2057	+	* that the two collections satisfy Object#equals(Object), since
2058	+	* they may use identity semantics as Deques do.
2059	+	*/
2060	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2061	+	if (x instanceof List || x instanceof Set)
2062	+	assertCollectionsEquals(x, y);
2063	+	else {
2064	+	assertEquals(x.isEmpty(), y.isEmpty());
2065	+	assertEquals(x.size(), y.size());
2066	+	assertEquals(new HashSet(x), new HashSet(y));
2067	+	if (x instanceof Deque) {
2068	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2069	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2070	+	y.toArray(new Object[0])));
2071	+	}
2072	+	}
2073	+	}
2074		}

Diff Legend

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