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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.175 by jsr166, Sun Oct 11 23:07:44 2015 UTC vs.
Revision 1.245 by jsr166, Sun Jul 22 21:19:14 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
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	+	/*
11	+	* @test
12	+	* @summary JSR-166 tck tests, in a number of variations.
13	+	*          The first is the conformance testing variant,
14	+	*          while others also test implementation details.
15	+	* @build *
16	+	* @modules java.management
17	+	* @run junit/othervm/timeout=1000 JSR166TestCase
18	+	* @run junit/othervm/timeout=1000
19	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
20	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
21	+	*      -Djsr166.testImplementationDetails=true
22	+	*      JSR166TestCase
23	+	* @run junit/othervm/timeout=1000
24	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
25	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
26	+	*      -Djsr166.testImplementationDetails=true
27	+	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
28	+	*      JSR166TestCase
29	+	* @run junit/othervm/timeout=1000
30	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
31	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
32	+	*      -Djsr166.testImplementationDetails=true
33	+	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
34	+	*      -Djava.util.secureRandomSeed=true
35	+	*      JSR166TestCase
36	+	* @run junit/othervm/timeout=1000/policy=tck.policy
37	+	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
38	+	*      --add-opens java.base/java.lang=ALL-UNNAMED
39	+	*      -Djsr166.testImplementationDetails=true
40	+	*      JSR166TestCase
41	+	*/
42	+
43		import static java.util.concurrent.TimeUnit.MILLISECONDS;
44		import static java.util.concurrent.TimeUnit.MINUTES;
45		import static java.util.concurrent.TimeUnit.NANOSECONDS;
#	Line 20 | Line 54 | import java.lang.management.ThreadMXBean
54		import java.lang.reflect.Constructor;
55		import java.lang.reflect.Method;
56		import java.lang.reflect.Modifier;
23	–	import java.nio.file.Files;
24	–	import java.nio.file.Paths;
57		import java.security.CodeSource;
58		import java.security.Permission;
59		import java.security.PermissionCollection;
#	Line 31 | Line 63 | 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;
57	–	import java.util.regex.Matcher;
103		import java.util.regex.Pattern;
104
60	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107		import junit.framework.TestResult;
#	Line 112 | Line 156 | import junit.framework.TestSuite;
156		* methods as there are exceptions the method can throw. Sometimes
157		* there are multiple tests per JSR166 method when the different
158		* "normal" behaviors differ significantly. And sometimes testcases
159	<	* cover multiple methods when they cannot be tested in
116	<	* isolation.
159	>	* cover multiple methods when they cannot be tested in isolation.
160		*
161		* <li>The documentation style for testcases is to provide as javadoc
162		* a simple sentence or two describing the property that the testcase
#	Line 176 | Line 219 | public class JSR166TestCase extends Test
219		private static final int suiteRuns =
220		Integer.getInteger("jsr166.suiteRuns", 1);
221
222	+	/**
223	+	* Returns the value of the system property, or NaN if not defined.
224	+	*/
225	+	private static float systemPropertyValue(String name) {
226	+	String floatString = System.getProperty(name);
227	+	if (floatString == null)
228	+	return Float.NaN;
229	+	try {
230	+	return Float.parseFloat(floatString);
231	+	} catch (NumberFormatException ex) {
232	+	throw new IllegalArgumentException(
233	+	String.format("Bad float value in system property %s=%s",
234	+	name, floatString));
235	+	}
236	+	}
237	+
238	+	/**
239	+	* The scaling factor to apply to standard delays used in tests.
240	+	* May be initialized from any of:
241	+	* - the "jsr166.delay.factor" system property
242	+	* - the "test.timeout.factor" system property (as used by jtreg)
243	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
244	+	* - hard-coded fuzz factor when using a known slowpoke VM
245	+	*/
246	+	private static final float delayFactor = delayFactor();
247	+
248	+	private static float delayFactor() {
249	+	float x;
250	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
251	+	return x;
252	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
253	+	return x;
254	+	String prop = System.getProperty("java.vm.version");
255	+	if (prop != null && prop.matches(".*debug.*"))
256	+	return 4.0f; // How much slower is fastdebug than product?!
257	+	return 1.0f;
258	+	}
259	+
260		public JSR166TestCase() { super(); }
261		public JSR166TestCase(String name) { super(name); }
262
#	Line 227 | Line 308 | public class JSR166TestCase extends Test
308
309		//     public static String cpuModel() {
310		//         try {
311	<	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
311	>	//             java.util.regex.Matcher matcher
312	>	//               = Pattern.compile("model name\\s*: (.*)")
313		//                 .matcher(new String(
314	<	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
314	>	//                     java.nio.file.Files.readAllBytes(
315	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
316		//             matcher.find();
317		//             return matcher.group(1);
318		//         } catch (Exception ex) { return null; }
#	Line 273 | Line 356 | public class JSR166TestCase extends Test
356		main(suite(), args);
357		}
358
359	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
360	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
361	+	long runTime;
362	+	public void startTest(Test test) {}
363	+	protected void printHeader(long runTime) {
364	+	this.runTime = runTime; // defer printing for later
365	+	}
366	+	protected void printFooter(TestResult result) {
367	+	if (result.wasSuccessful()) {
368	+	getWriter().println("OK (" + result.runCount() + " tests)"
369	+	+ "  Time: " + elapsedTimeAsString(runTime));
370	+	} else {
371	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
372	+	super.printFooter(result);
373	+	}
374	+	}
375	+	}
376	+
377	+	/**
378	+	* Returns a TestRunner that doesn't bother with unnecessary
379	+	* fluff, like printing a "." for each test case.
380	+	*/
381	+	static junit.textui.TestRunner newPithyTestRunner() {
382	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
383	+	runner.setPrinter(new PithyResultPrinter(System.out));
384	+	return runner;
385	+	}
386	+
387		/**
388		* Runs all unit tests in the given test suite.
389		* Actual behavior influenced by jsr166.* system properties.
#	Line 284 | Line 395 | public class JSR166TestCase extends Test
395		System.setSecurityManager(new SecurityManager());
396		}
397		for (int i = 0; i < suiteRuns; i++) {
398	<	TestResult result = junit.textui.TestRunner.run(suite);
398	>	TestResult result = newPithyTestRunner().doRun(suite);
399		if (!result.wasSuccessful())
400		System.exit(1);
401		System.gc();
#	Line 310 | Line 421 | public class JSR166TestCase extends Test
421		for (String testClassName : testClassNames) {
422		try {
423		Class<?> testClass = Class.forName(testClassName);
424	<	Method m = testClass.getDeclaredMethod("suite",
314	<	new Class<?>[0]);
424	>	Method m = testClass.getDeclaredMethod("suite");
425		suite.addTest(newTestSuite((Test)m.invoke(null)));
426	<	} catch (Exception e) {
427	<	throw new Error("Missing test class", e);
426	>	} catch (ReflectiveOperationException e) {
427	>	throw new AssertionError("Missing test class", e);
428		}
429		}
430		}
#	Line 336 | Line 446 | public class JSR166TestCase extends Test
446		}
447		}
448
449	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
450	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
451	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
452	<	public static boolean atLeastJava9() {
453	<	return JAVA_CLASS_VERSION >= 53.0
454	<	// As of 2015-09, java9 still uses 52.0 class file version
345	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
346	<	}
347	<	public static boolean atLeastJava10() {
348	<	return JAVA_CLASS_VERSION >= 54.0
349	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
350	<	}
449	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
450	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
451	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
452	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
453	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
454	>	public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
455
456		/**
457		* Collects all JSR166 unit tests as one suite.
#	Line 368 | Line 472 | public class JSR166TestCase extends Test
472		AbstractQueuedLongSynchronizerTest.suite(),
473		ArrayBlockingQueueTest.suite(),
474		ArrayDequeTest.suite(),
475	+	ArrayListTest.suite(),
476		AtomicBooleanTest.suite(),
477		AtomicIntegerArrayTest.suite(),
478		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 390 | Line 495 | public class JSR166TestCase extends Test
495		CopyOnWriteArrayListTest.suite(),
496		CopyOnWriteArraySetTest.suite(),
497		CountDownLatchTest.suite(),
498	+	CountedCompleterTest.suite(),
499		CyclicBarrierTest.suite(),
500		DelayQueueTest.suite(),
501		EntryTest.suite(),
#	Line 418 | Line 524 | public class JSR166TestCase extends Test
524		TreeMapTest.suite(),
525		TreeSetTest.suite(),
526		TreeSubMapTest.suite(),
527	<	TreeSubSetTest.suite());
527	>	TreeSubSetTest.suite(),
528	>	VectorTest.suite());
529
530		// Java8+ test classes
531		if (atLeastJava8()) {
532		String[] java8TestClassNames = {
533	+	"ArrayDeque8Test",
534		"Atomic8Test",
535		"CompletableFutureTest",
536		"ConcurrentHashMap8Test",
537	<	"CountedCompleterTest",
537	>	"CountedCompleter8Test",
538		"DoubleAccumulatorTest",
539		"DoubleAdderTest",
540		"ForkJoinPool8Test",
541		"ForkJoinTask8Test",
542	+	"HashMapTest",
543	+	"LinkedBlockingDeque8Test",
544	+	"LinkedBlockingQueue8Test",
545		"LongAccumulatorTest",
546		"LongAdderTest",
547		"SplittableRandomTest",
548		"StampedLockTest",
549		"SubmissionPublisherTest",
550		"ThreadLocalRandom8Test",
551	+	"TimeUnit8Test",
552		};
553		addNamedTestClasses(suite, java8TestClassNames);
554		}
#	Line 444 | Line 556 | public class JSR166TestCase extends Test
556		// Java9+ test classes
557		if (atLeastJava9()) {
558		String[] java9TestClassNames = {
559	<	// Currently empty, but expecting varhandle tests
559	>	"AtomicBoolean9Test",
560	>	"AtomicInteger9Test",
561	>	"AtomicIntegerArray9Test",
562	>	"AtomicLong9Test",
563	>	"AtomicLongArray9Test",
564	>	"AtomicReference9Test",
565	>	"AtomicReferenceArray9Test",
566	>	"ExecutorCompletionService9Test",
567	>	"ForkJoinPool9Test",
568		};
569		addNamedTestClasses(suite, java9TestClassNames);
570		}
#	Line 455 | Line 575 | public class JSR166TestCase extends Test
575		/** Returns list of junit-style test method names in given class. */
576		public static ArrayList<String> testMethodNames(Class<?> testClass) {
577		Method[] methods = testClass.getDeclaredMethods();
578	<	ArrayList<String> names = new ArrayList<String>(methods.length);
578	>	ArrayList<String> names = new ArrayList<>(methods.length);
579		for (Method method : methods) {
580		if (method.getName().startsWith("test")
581		&& Modifier.isPublic(method.getModifiers())
#	Line 482 | Line 602 | public class JSR166TestCase extends Test
602		for (String methodName : testMethodNames(testClass))
603		suite.addTest((Test) c.newInstance(data, methodName));
604		return suite;
605	<	} catch (Exception e) {
606	<	throw new Error(e);
605	>	} catch (ReflectiveOperationException e) {
606	>	throw new AssertionError(e);
607		}
608		}
609
#	Line 499 | Line 619 | public class JSR166TestCase extends Test
619		if (atLeastJava8()) {
620		String name = testClass.getName();
621		String name8 = name.replaceAll("Test$", "8Test");
622	<	if (name.equals(name8)) throw new Error(name);
622	>	if (name.equals(name8)) throw new AssertionError(name);
623		try {
624		return (Test)
625		Class.forName(name8)
626	<	.getMethod("testSuite", new Class[] { dataClass })
626	>	.getMethod("testSuite", dataClass)
627		.invoke(null, data);
628	<	} catch (Exception e) {
629	<	throw new Error(e);
628	>	} catch (ReflectiveOperationException e) {
629	>	throw new AssertionError(e);
630		}
631		} else {
632		return new TestSuite();
#	Line 520 | Line 640 | public class JSR166TestCase extends Test
640		public static long MEDIUM_DELAY_MS;
641		public static long LONG_DELAY_MS;
642
643	+	private static final long RANDOM_TIMEOUT;
644	+	private static final long RANDOM_EXPIRED_TIMEOUT;
645	+	private static final TimeUnit RANDOM_TIMEUNIT;
646	+	static {
647	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
648	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
649	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
650	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
651	+	TimeUnit[] timeUnits = TimeUnit.values();
652	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
653	+	}
654	+
655	+	/**
656	+	* Returns a timeout for use when any value at all will do.
657	+	*/
658	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
659	+
660		/**
661	<	* Returns the shortest timed delay. This could
662	<	* be reimplemented to use for example a Property.
661	>	* Returns a timeout that means "no waiting", i.e. not positive.
662	>	*/
663	>	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
664	>
665	>	/**
666	>	* Returns a random non-null TimeUnit.
667	>	*/
668	>	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
669	>
670	>	/**
671	>	* Returns the shortest timed delay. This can be scaled up for
672	>	* slow machines using the jsr166.delay.factor system property,
673	>	* or via jtreg's -timeoutFactor: flag.
674	>	* http://openjdk.java.net/jtreg/command-help.html
675		*/
676		protected long getShortDelay() {
677	<	return 50;
677	>	return (long) (50 * delayFactor);
678		}
679
680		/**
#	Line 538 | Line 687 | public class JSR166TestCase extends Test
687		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
688		}
689
690	+	private static final long TIMEOUT_DELAY_MS
691	+	= (long) (12.0 * Math.cbrt(delayFactor));
692	+
693		/**
694	<	* Returns a timeout in milliseconds to be used in tests that
695	<	* verify that operations block or time out.
694	>	* Returns a timeout in milliseconds to be used in tests that verify
695	>	* that operations block or time out.  We want this to be longer
696	>	* than the OS scheduling quantum, but not too long, so don't scale
697	>	* linearly with delayFactor; we use "crazy" cube root instead.
698		*/
699	<	long timeoutMillis() {
700	<	return SHORT_DELAY_MS / 4;
699	>	static long timeoutMillis() {
700	>	return TIMEOUT_DELAY_MS;
701		}
702
703		/**
#	Line 559 | Line 713 | public class JSR166TestCase extends Test
713		* The first exception encountered if any threadAssertXXX method fails.
714		*/
715		private final AtomicReference<Throwable> threadFailure
716	<	= new AtomicReference<Throwable>(null);
716	>	= new AtomicReference<>(null);
717
718		/**
719		* Records an exception so that it can be rethrown later in the test
#	Line 581 | Line 735 | public class JSR166TestCase extends Test
735		String msg = toString() + ": " + String.format(format, args);
736		System.err.println(msg);
737		dumpTestThreads();
738	<	throw new AssertionFailedError(msg);
738	>	throw new AssertionError(msg);
739		}
740
741		/**
#	Line 602 | Line 756 | public class JSR166TestCase extends Test
756		throw (RuntimeException) t;
757		else if (t instanceof Exception)
758		throw (Exception) t;
759	<	else {
760	<	AssertionFailedError afe =
607	<	new AssertionFailedError(t.toString());
608	<	afe.initCause(t);
609	<	throw afe;
610	<	}
759	>	else
760	>	throw new AssertionError(t.toString(), t);
761		}
762
763		if (Thread.interrupted())
#	Line 641 | Line 791 | public class JSR166TestCase extends Test
791
792		/**
793		* Just like fail(reason), but additionally recording (using
794	<	* threadRecordFailure) any AssertionFailedError thrown, so that
795	<	* the current testcase will fail.
794	>	* threadRecordFailure) any AssertionError thrown, so that the
795	>	* current testcase will fail.
796		*/
797		public void threadFail(String reason) {
798		try {
799		fail(reason);
800	<	} catch (AssertionFailedError t) {
801	<	threadRecordFailure(t);
802	<	throw t;
800	>	} catch (AssertionError fail) {
801	>	threadRecordFailure(fail);
802	>	throw fail;
803		}
804		}
805
806		/**
807		* Just like assertTrue(b), but additionally recording (using
808	<	* threadRecordFailure) any AssertionFailedError thrown, so that
809	<	* the current testcase will fail.
808	>	* threadRecordFailure) any AssertionError thrown, so that the
809	>	* current testcase will fail.
810		*/
811		public void threadAssertTrue(boolean b) {
812		try {
813		assertTrue(b);
814	<	} catch (AssertionFailedError t) {
815	<	threadRecordFailure(t);
816	<	throw t;
814	>	} catch (AssertionError fail) {
815	>	threadRecordFailure(fail);
816	>	throw fail;
817		}
818		}
819
820		/**
821		* Just like assertFalse(b), but additionally recording (using
822	<	* threadRecordFailure) any AssertionFailedError thrown, so that
823	<	* the current testcase will fail.
822	>	* threadRecordFailure) any AssertionError thrown, so that the
823	>	* current testcase will fail.
824		*/
825		public void threadAssertFalse(boolean b) {
826		try {
827		assertFalse(b);
828	<	} catch (AssertionFailedError t) {
829	<	threadRecordFailure(t);
830	<	throw t;
828	>	} catch (AssertionError fail) {
829	>	threadRecordFailure(fail);
830	>	throw fail;
831		}
832		}
833
834		/**
835		* Just like assertNull(x), but additionally recording (using
836	<	* threadRecordFailure) any AssertionFailedError thrown, so that
837	<	* the current testcase will fail.
836	>	* threadRecordFailure) any AssertionError thrown, so that the
837	>	* current testcase will fail.
838		*/
839		public void threadAssertNull(Object x) {
840		try {
841		assertNull(x);
842	<	} catch (AssertionFailedError t) {
843	<	threadRecordFailure(t);
844	<	throw t;
842	>	} catch (AssertionError fail) {
843	>	threadRecordFailure(fail);
844	>	throw fail;
845		}
846		}
847
848		/**
849		* Just like assertEquals(x, y), but additionally recording (using
850	<	* threadRecordFailure) any AssertionFailedError thrown, so that
851	<	* the current testcase will fail.
850	>	* threadRecordFailure) any AssertionError thrown, so that the
851	>	* current testcase will fail.
852		*/
853		public void threadAssertEquals(long x, long y) {
854		try {
855		assertEquals(x, y);
856	<	} catch (AssertionFailedError t) {
857	<	threadRecordFailure(t);
858	<	throw t;
856	>	} catch (AssertionError fail) {
857	>	threadRecordFailure(fail);
858	>	throw fail;
859		}
860		}
861
862		/**
863		* Just like assertEquals(x, y), but additionally recording (using
864	<	* threadRecordFailure) any AssertionFailedError thrown, so that
865	<	* the current testcase will fail.
864	>	* threadRecordFailure) any AssertionError thrown, so that the
865	>	* current testcase will fail.
866		*/
867		public void threadAssertEquals(Object x, Object y) {
868		try {
869		assertEquals(x, y);
870	<	} catch (AssertionFailedError fail) {
870	>	} catch (AssertionError fail) {
871		threadRecordFailure(fail);
872		throw fail;
873		} catch (Throwable fail) {
#	Line 727 | Line 877 | public class JSR166TestCase extends Test
877
878		/**
879		* Just like assertSame(x, y), but additionally recording (using
880	<	* threadRecordFailure) any AssertionFailedError thrown, so that
881	<	* the current testcase will fail.
880	>	* threadRecordFailure) any AssertionError thrown, so that the
881	>	* current testcase will fail.
882		*/
883		public void threadAssertSame(Object x, Object y) {
884		try {
885		assertSame(x, y);
886	<	} catch (AssertionFailedError fail) {
886	>	} catch (AssertionError fail) {
887		threadRecordFailure(fail);
888		throw fail;
889		}
#	Line 755 | Line 905 | public class JSR166TestCase extends Test
905
906		/**
907		* Records the given exception using {@link #threadRecordFailure},
908	<	* then rethrows the exception, wrapping it in an
909	<	* AssertionFailedError if necessary.
908	>	* then rethrows the exception, wrapping it in an AssertionError
909	>	* if necessary.
910		*/
911		public void threadUnexpectedException(Throwable t) {
912		threadRecordFailure(t);
#	Line 765 | Line 915 | public class JSR166TestCase extends Test
915		throw (RuntimeException) t;
916		else if (t instanceof Error)
917		throw (Error) t;
918	<	else {
919	<	AssertionFailedError afe =
770	<	new AssertionFailedError("unexpected exception: " + t);
771	<	afe.initCause(t);
772	<	throw afe;
773	<	}
918	>	else
919	>	throw new AssertionError("unexpected exception: " + t, t);
920		}
921
922		/**
#	Line 838 | Line 984 | public class JSR166TestCase extends Test
984		}};
985		}
986
987	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
988	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
989	+	}
990	+
991	+	Runnable releaser(final AtomicBoolean flag) {
992	+	return new Runnable() { public void run() { flag.set(true); }};
993	+	}
994	+
995		/**
996		* Waits out termination of a thread pool or fails doing so.
997		*/
#	Line 861 | Line 1015 | public class JSR166TestCase extends Test
1015		}
1016		}
1017
1018	<	/** Like Runnable, but with the freedom to throw anything */
1018	>	/**
1019	>	* Like Runnable, but with the freedom to throw anything.
1020	>	* junit folks had the same idea:
1021	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1022	>	*/
1023		interface Action { public void run() throws Throwable; }
1024
1025		/**
#	Line 892 | Line 1050 | public class JSR166TestCase extends Test
1050		* Uninteresting threads are filtered out.
1051		*/
1052		static void dumpTestThreads() {
1053	+	SecurityManager sm = System.getSecurityManager();
1054	+	if (sm != null) {
1055	+	try {
1056	+	System.setSecurityManager(null);
1057	+	} catch (SecurityException giveUp) {
1058	+	return;
1059	+	}
1060	+	}
1061	+
1062		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1063		System.err.println("------ stacktrace dump start ------");
1064		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1065	<	String name = info.getThreadName();
1065	>	final String name = info.getThreadName();
1066	>	String lockName;
1067		if ("Signal Dispatcher".equals(name))
1068		continue;
1069		if ("Reference Handler".equals(name)
1070	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1070	>	&& (lockName = info.getLockName()) != null
1071	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1072		continue;
1073		if ("Finalizer".equals(name)
1074	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1074	>	&& (lockName = info.getLockName()) != null
1075	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1076		continue;
1077		if ("checkForWedgedTest".equals(name))
1078		continue;
1079		System.err.print(info);
1080		}
1081		System.err.println("------ stacktrace dump end ------");
912	–	}
913	–
914	–	/**
915	–	* Checks that thread does not terminate within the default
916	–	* millisecond delay of {@code timeoutMillis()}.
917	–	*/
918	–	void assertThreadStaysAlive(Thread thread) {
919	–	assertThreadStaysAlive(thread, timeoutMillis());
920	–	}
921	–
922	–	/**
923	–	* Checks that thread does not terminate within the given millisecond delay.
924	–	*/
925	–	void assertThreadStaysAlive(Thread thread, long millis) {
926	–	try {
927	–	// No need to optimize the failing case via Thread.join.
928	–	delay(millis);
929	–	assertTrue(thread.isAlive());
930	–	} catch (InterruptedException fail) {
931	–	threadFail("Unexpected InterruptedException");
932	–	}
933	–	}
1082
1083	<	/**
936	<	* Checks that the threads do not terminate within the default
937	<	* millisecond delay of {@code timeoutMillis()}.
938	<	*/
939	<	void assertThreadsStayAlive(Thread... threads) {
940	<	assertThreadsStayAlive(timeoutMillis(), threads);
1083	>	if (sm != null) System.setSecurityManager(sm);
1084		}
1085
1086		/**
1087	<	* Checks that the threads do not terminate within the given millisecond delay.
1087	>	* Checks that thread eventually enters the expected blocked thread state.
1088		*/
1089	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1090	<	try {
1091	<	// No need to optimize the failing case via Thread.join.
1092	<	delay(millis);
1093	<	for (Thread thread : threads)
1094	<	assertTrue(thread.isAlive());
1095	<	} catch (InterruptedException fail) {
1096	<	threadFail("Unexpected InterruptedException");
1089	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1090	>	// always sleep at least 1 ms, with high probability avoiding
1091	>	// transitory states
1092	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1093	>	try { delay(1); }
1094	>	catch (InterruptedException fail) {
1095	>	throw new AssertionError("Unexpected InterruptedException", fail);
1096	>	}
1097	>	Thread.State s = thread.getState();
1098	>	if (s == expected)
1099	>	return;
1100	>	else if (s == Thread.State.TERMINATED)
1101	>	fail("Unexpected thread termination");
1102		}
1103	+	fail("timed out waiting for thread to enter thread state " + expected);
1104		}
1105
1106		/**
#	Line 992 | Line 1141 | public class JSR166TestCase extends Test
1141		}
1142
1143		/**
1144	+	* The maximum number of consecutive spurious wakeups we should
1145	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1146	+	*/
1147	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1148	+
1149	+	/**
1150		* The number of elements to place in collections, arrays, etc.
1151		*/
1152		public static final int SIZE = 20;
#	Line 1095 | Line 1250 | public class JSR166TestCase extends Test
1250		}
1251		public void refresh() {}
1252		public String toString() {
1253	<	List<Permission> ps = new ArrayList<Permission>();
1253	>	List<Permission> ps = new ArrayList<>();
1254		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1255		ps.add(e.nextElement());
1256		return "AdjustablePolicy with permissions " + ps;
#	Line 1123 | Line 1278 | public class JSR166TestCase extends Test
1278
1279		/**
1280		* Sleeps until the given time has elapsed.
1281	<	* Throws AssertionFailedError if interrupted.
1281	>	* Throws AssertionError if interrupted.
1282		*/
1283	<	void sleep(long millis) {
1283	>	static void sleep(long millis) {
1284		try {
1285		delay(millis);
1286		} catch (InterruptedException fail) {
1287	<	AssertionFailedError afe =
1133	<	new AssertionFailedError("Unexpected InterruptedException");
1134	<	afe.initCause(fail);
1135	<	throw afe;
1287	>	throw new AssertionError("Unexpected InterruptedException", fail);
1288		}
1289		}
1290
#	Line 1141 | Line 1293 | public class JSR166TestCase extends Test
1293		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1294		*/
1295		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1296	<	long startTime = System.nanoTime();
1296	>	long startTime = 0L;
1297		for (;;) {
1298		Thread.State s = thread.getState();
1299		if (s == Thread.State.BLOCKED ||
#	Line 1150 | Line 1302 | public class JSR166TestCase extends Test
1302		return;
1303		else if (s == Thread.State.TERMINATED)
1304		fail("Unexpected thread termination");
1305	+	else if (startTime == 0L)
1306	+	startTime = System.nanoTime();
1307		else if (millisElapsedSince(startTime) > timeoutMillis) {
1308		threadAssertTrue(thread.isAlive());
1309	<	return;
1309	>	fail("timed out waiting for thread to enter wait state");
1310	>	}
1311	>	Thread.yield();
1312	>	}
1313	>	}
1314	>
1315	>	/**
1316	>	* Spin-waits up to the specified number of milliseconds for the given
1317	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1318	>	* and additionally satisfy the given condition.
1319	>	*/
1320	>	void waitForThreadToEnterWaitState(
1321	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1322	>	long startTime = 0L;
1323	>	for (;;) {
1324	>	Thread.State s = thread.getState();
1325	>	if (s == Thread.State.BLOCKED ||
1326	>	s == Thread.State.WAITING ||
1327	>	s == Thread.State.TIMED_WAITING) {
1328	>	try {
1329	>	if (waitingForGodot.call())
1330	>	return;
1331	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1332	>	}
1333	>	else if (s == Thread.State.TERMINATED)
1334	>	fail("Unexpected thread termination");
1335	>	else if (startTime == 0L)
1336	>	startTime = System.nanoTime();
1337	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1338	>	threadAssertTrue(thread.isAlive());
1339	>	fail("timed out waiting for thread to enter wait state");
1340		}
1341		Thread.yield();
1342		}
1343		}
1344
1345		/**
1346	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1347	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1346	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1347	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1348		*/
1349		void waitForThreadToEnterWaitState(Thread thread) {
1350		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1351		}
1352
1353		/**
1354	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1355	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1356	+	* and additionally satisfy the given condition.
1357	+	*/
1358	+	void waitForThreadToEnterWaitState(
1359	+	Thread thread, Callable<Boolean> waitingForGodot) {
1360	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1361	+	}
1362	+
1363	+	/**
1364		* Returns the number of milliseconds since time given by
1365		* startNanoTime, which must have been previously returned from a
1366		* call to {@link System#nanoTime()}.
#	Line 1181 | Line 1375 | public class JSR166TestCase extends Test
1375		//             r.run();
1376		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1377		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1378	<	//             throw new AssertionFailedError("did not return promptly");
1378	>	//             throw new AssertionError("did not return promptly");
1379		//     }
1380
1381		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1194 | Line 1388 | public class JSR166TestCase extends Test
1388		*/
1389		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1390		long startTime = System.nanoTime();
1391	+	T actual = null;
1392		try {
1393	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1393	>	actual = f.get(timeoutMillis, MILLISECONDS);
1394		} catch (Throwable fail) { threadUnexpectedException(fail); }
1395	+	assertEquals(expectedValue, actual);
1396		if (millisElapsedSince(startTime) > timeoutMillis/2)
1397	<	throw new AssertionFailedError("timed get did not return promptly");
1397	>	throw new AssertionError("timed get did not return promptly");
1398		}
1399
1400		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1228 | Line 1424 | public class JSR166TestCase extends Test
1424		} finally {
1425		if (t.getState() != Thread.State.TERMINATED) {
1426		t.interrupt();
1427	<	threadFail("Test timed out");
1427	>	threadFail("timed out waiting for thread to terminate");
1428		}
1429		}
1430		}
#	Line 1256 | Line 1452 | public class JSR166TestCase extends Test
1452		}
1453		}
1454
1259	–	public abstract class RunnableShouldThrow implements Runnable {
1260	–	protected abstract void realRun() throws Throwable;
1261	–
1262	–	final Class<?> exceptionClass;
1263	–
1264	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1265	–	this.exceptionClass = exceptionClass;
1266	–	}
1267	–
1268	–	public final void run() {
1269	–	try {
1270	–	realRun();
1271	–	threadShouldThrow(exceptionClass.getSimpleName());
1272	–	} catch (Throwable t) {
1273	–	if (! exceptionClass.isInstance(t))
1274	–	threadUnexpectedException(t);
1275	–	}
1276	–	}
1277	–	}
1278	–
1455		public abstract class ThreadShouldThrow extends Thread {
1456		protected abstract void realRun() throws Throwable;
1457
#	Line 1394 | Line 1570 | public class JSR166TestCase extends Test
1570		return new LatchAwaiter(latch);
1571		}
1572
1573	<	public void await(CountDownLatch latch) {
1573	>	public void await(CountDownLatch latch, long timeoutMillis) {
1574		try {
1575	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1575	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1576	>	fail("timed out waiting for CountDownLatch for "
1577	>	+ (timeoutMillis/1000) + " sec");
1578		} catch (Throwable fail) {
1579		threadUnexpectedException(fail);
1580		}
1581		}
1582
1583	+	public void await(CountDownLatch latch) {
1584	+	await(latch, LONG_DELAY_MS);
1585	+	}
1586	+
1587		public void await(Semaphore semaphore) {
1588		try {
1589	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1589	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1590	>	fail("timed out waiting for Semaphore for "
1591	>	+ (LONG_DELAY_MS/1000) + " sec");
1592	>	} catch (Throwable fail) {
1593	>	threadUnexpectedException(fail);
1594	>	}
1595	>	}
1596	>
1597	>	public void await(CyclicBarrier barrier) {
1598	>	try {
1599	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1600		} catch (Throwable fail) {
1601		threadUnexpectedException(fail);
1602		}
#	Line 1424 | Line 1616 | public class JSR166TestCase extends Test
1616		//         long startTime = System.nanoTime();
1617		//         while (!flag.get()) {
1618		//             if (millisElapsedSince(startTime) > timeoutMillis)
1619	<	//                 throw new AssertionFailedError("timed out");
1619	>	//                 throw new AssertionError("timed out");
1620		//             Thread.yield();
1621		//         }
1622		//     }
#	Line 1433 | Line 1625 | public class JSR166TestCase extends Test
1625		public String call() { throw new NullPointerException(); }
1626		}
1627
1436	–	public static class CallableOne implements Callable<Integer> {
1437	–	public Integer call() { return one; }
1438	–	}
1439	–
1440	–	public class ShortRunnable extends CheckedRunnable {
1441	–	protected void realRun() throws Throwable {
1442	–	delay(SHORT_DELAY_MS);
1443	–	}
1444	–	}
1445	–
1446	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1447	–	protected void realRun() throws InterruptedException {
1448	–	delay(SHORT_DELAY_MS);
1449	–	}
1450	–	}
1451	–
1452	–	public class SmallRunnable extends CheckedRunnable {
1453	–	protected void realRun() throws Throwable {
1454	–	delay(SMALL_DELAY_MS);
1455	–	}
1456	–	}
1457	–
1628		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1629		protected void realRun() {
1630		try {
#	Line 1463 | Line 1633 | public class JSR166TestCase extends Test
1633		}
1634		}
1635
1466	–	public class SmallCallable extends CheckedCallable {
1467	–	protected Object realCall() throws InterruptedException {
1468	–	delay(SMALL_DELAY_MS);
1469	–	return Boolean.TRUE;
1470	–	}
1471	–	}
1472	–
1473	–	public class MediumRunnable extends CheckedRunnable {
1474	–	protected void realRun() throws Throwable {
1475	–	delay(MEDIUM_DELAY_MS);
1476	–	}
1477	–	}
1478	–
1479	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1480	–	protected void realRun() throws InterruptedException {
1481	–	delay(MEDIUM_DELAY_MS);
1482	–	}
1483	–	}
1484	–
1636		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1637		return new CheckedRunnable() {
1638		protected void realRun() {
#	Line 1491 | Line 1642 | public class JSR166TestCase extends Test
1642		}};
1643		}
1644
1494	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1495	–	protected void realRun() {
1496	–	try {
1497	–	delay(MEDIUM_DELAY_MS);
1498	–	} catch (InterruptedException ok) {}
1499	–	}
1500	–	}
1501	–
1502	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1503	–	protected void realRun() {
1504	–	try {
1505	–	delay(LONG_DELAY_MS);
1506	–	} catch (InterruptedException ok) {}
1507	–	}
1508	–	}
1509	–
1645		/**
1646		* For use as ThreadFactory in constructors
1647		*/
#	Line 1520 | Line 1655 | public class JSR166TestCase extends Test
1655		boolean isDone();
1656		}
1657
1523	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1524	–	return new TrackedRunnable() {
1525	–	private volatile boolean done = false;
1526	–	public boolean isDone() { return done; }
1527	–	public void run() {
1528	–	try {
1529	–	delay(timeoutMillis);
1530	–	done = true;
1531	–	} catch (InterruptedException ok) {}
1532	–	}
1533	–	};
1534	–	}
1535	–
1536	–	public static class TrackedShortRunnable implements Runnable {
1537	–	public volatile boolean done = false;
1538	–	public void run() {
1539	–	try {
1540	–	delay(SHORT_DELAY_MS);
1541	–	done = true;
1542	–	} catch (InterruptedException ok) {}
1543	–	}
1544	–	}
1545	–
1546	–	public static class TrackedSmallRunnable implements Runnable {
1547	–	public volatile boolean done = false;
1548	–	public void run() {
1549	–	try {
1550	–	delay(SMALL_DELAY_MS);
1551	–	done = true;
1552	–	} catch (InterruptedException ok) {}
1553	–	}
1554	–	}
1555	–
1556	–	public static class TrackedMediumRunnable implements Runnable {
1557	–	public volatile boolean done = false;
1558	–	public void run() {
1559	–	try {
1560	–	delay(MEDIUM_DELAY_MS);
1561	–	done = true;
1562	–	} catch (InterruptedException ok) {}
1563	–	}
1564	–	}
1565	–
1566	–	public static class TrackedLongRunnable implements Runnable {
1567	–	public volatile boolean done = false;
1568	–	public void run() {
1569	–	try {
1570	–	delay(LONG_DELAY_MS);
1571	–	done = true;
1572	–	} catch (InterruptedException ok) {}
1573	–	}
1574	–	}
1575	–
1658		public static class TrackedNoOpRunnable implements Runnable {
1659		public volatile boolean done = false;
1660		public void run() {
#	Line 1580 | Line 1662 | public class JSR166TestCase extends Test
1662		}
1663		}
1664
1583	–	public static class TrackedCallable implements Callable {
1584	–	public volatile boolean done = false;
1585	–	public Object call() {
1586	–	try {
1587	–	delay(SMALL_DELAY_MS);
1588	–	done = true;
1589	–	} catch (InterruptedException ok) {}
1590	–	return Boolean.TRUE;
1591	–	}
1592	–	}
1593	–
1665		/**
1666		* Analog of CheckedRunnable for RecursiveAction
1667		*/
#	Line 1632 | Line 1703 | public class JSR166TestCase extends Test
1703
1704		/**
1705		* A CyclicBarrier that uses timed await and fails with
1706	<	* AssertionFailedErrors instead of throwing checked exceptions.
1706	>	* AssertionErrors instead of throwing checked exceptions.
1707		*/
1708	<	public class CheckedBarrier extends CyclicBarrier {
1708	>	public static class CheckedBarrier extends CyclicBarrier {
1709		public CheckedBarrier(int parties) { super(parties); }
1710
1711		public int await() {
1712		try {
1713		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1714		} catch (TimeoutException timedOut) {
1715	<	throw new AssertionFailedError("timed out");
1715	>	throw new AssertionError("timed out");
1716		} catch (Exception fail) {
1717	<	AssertionFailedError afe =
1647	<	new AssertionFailedError("Unexpected exception: " + fail);
1648	<	afe.initCause(fail);
1649	<	throw afe;
1717	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1718		}
1719		}
1720		}
#	Line 1657 | Line 1725 | public class JSR166TestCase extends Test
1725		assertEquals(0, q.size());
1726		assertNull(q.peek());
1727		assertNull(q.poll());
1728	<	assertNull(q.poll(0, MILLISECONDS));
1728	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1729		assertEquals(q.toString(), "[]");
1730		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1731		assertFalse(q.iterator().hasNext());
#	Line 1698 | Line 1766 | public class JSR166TestCase extends Test
1766		}
1767		}
1768
1769	+	void assertImmutable(final Object o) {
1770	+	if (o instanceof Collection) {
1771	+	assertThrows(
1772	+	UnsupportedOperationException.class,
1773	+	new Runnable() { public void run() {
1774	+	((Collection) o).add(null);}});
1775	+	}
1776	+	}
1777	+
1778		@SuppressWarnings("unchecked")
1779		<T> T serialClone(T o) {
1780		try {
1781		ObjectInputStream ois = new ObjectInputStream
1782		(new ByteArrayInputStream(serialBytes(o)));
1783		T clone = (T) ois.readObject();
1784	+	if (o == clone) assertImmutable(o);
1785		assertSame(o.getClass(), clone.getClass());
1786		return clone;
1787		} catch (Throwable fail) {
#	Line 1712 | Line 1790 | public class JSR166TestCase extends Test
1790		}
1791		}
1792
1793	+	/**
1794	+	* A version of serialClone that leaves error handling (for
1795	+	* e.g. NotSerializableException) up to the caller.
1796	+	*/
1797	+	@SuppressWarnings("unchecked")
1798	+	<T> T serialClonePossiblyFailing(T o)
1799	+	throws ReflectiveOperationException, java.io.IOException {
1800	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1801	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1802	+	oos.writeObject(o);
1803	+	oos.flush();
1804	+	oos.close();
1805	+	ObjectInputStream ois = new ObjectInputStream
1806	+	(new ByteArrayInputStream(bos.toByteArray()));
1807	+	T clone = (T) ois.readObject();
1808	+	if (o == clone) assertImmutable(o);
1809	+	assertSame(o.getClass(), clone.getClass());
1810	+	return clone;
1811	+	}
1812	+
1813	+	/**
1814	+	* If o implements Cloneable and has a public clone method,
1815	+	* returns a clone of o, else null.
1816	+	*/
1817	+	@SuppressWarnings("unchecked")
1818	+	<T> T cloneableClone(T o) {
1819	+	if (!(o instanceof Cloneable)) return null;
1820	+	final T clone;
1821	+	try {
1822	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1823	+	} catch (NoSuchMethodException ok) {
1824	+	return null;
1825	+	} catch (ReflectiveOperationException unexpected) {
1826	+	throw new Error(unexpected);
1827	+	}
1828	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1829	+	assertSame(o.getClass(), clone.getClass());
1830	+	return clone;
1831	+	}
1832	+
1833		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1834		Runnable... throwingActions) {
1835		for (Runnable throwingAction : throwingActions) {
#	Line 1719 | Line 1837 | public class JSR166TestCase extends Test
1837		try { throwingAction.run(); }
1838		catch (Throwable t) {
1839		threw = true;
1840	<	if (!expectedExceptionClass.isInstance(t)) {
1841	<	AssertionFailedError afe =
1842	<	new AssertionFailedError
1843	<	("Expected " + expectedExceptionClass.getName() +
1844	<	", got " + t.getClass().getName());
1727	<	afe.initCause(t);
1728	<	threadUnexpectedException(afe);
1729	<	}
1840	>	if (!expectedExceptionClass.isInstance(t))
1841	>	throw new AssertionError(
1842	>	"Expected " + expectedExceptionClass.getName() +
1843	>	", got " + t.getClass().getName(),
1844	>	t);
1845		}
1846		if (!threw)
1847		shouldThrow(expectedExceptionClass.getName());
#	Line 1740 | Line 1855 | public class JSR166TestCase extends Test
1855		} catch (NoSuchElementException success) {}
1856		assertFalse(it.hasNext());
1857		}
1858	+
1859	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1860	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1861	+	}
1862	+
1863	+	public Runnable runnableThrowing(final RuntimeException ex) {
1864	+	return new Runnable() { public void run() { throw ex; }};
1865	+	}
1866	+
1867	+	/** A reusable thread pool to be shared by tests. */
1868	+	static final ExecutorService cachedThreadPool =
1869	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1870	+	1000L, MILLISECONDS,
1871	+	new SynchronousQueue<Runnable>());
1872	+
1873	+	static <T> void shuffle(T[] array) {
1874	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1875	+	}
1876	+
1877	+	/**
1878	+	* Returns the same String as would be returned by {@link
1879	+	* Object#toString}, whether or not the given object's class
1880	+	* overrides toString().
1881	+	*
1882	+	* @see System#identityHashCode
1883	+	*/
1884	+	static String identityString(Object x) {
1885	+	return x.getClass().getName()
1886	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1887	+	}
1888	+
1889	+	// --- Shared assertions for Executor tests ---
1890	+
1891	+	/**
1892	+	* Returns maximum number of tasks that can be submitted to given
1893	+	* pool (with bounded queue) before saturation (when submission
1894	+	* throws RejectedExecutionException).
1895	+	*/
1896	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1897	+	BlockingQueue<Runnable> q = pool.getQueue();
1898	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1899	+	}
1900	+
1901	+	@SuppressWarnings("FutureReturnValueIgnored")
1902	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1903	+	try {
1904	+	e.execute((Runnable) null);
1905	+	shouldThrow();
1906	+	} catch (NullPointerException success) {}
1907	+
1908	+	if (! (e instanceof ExecutorService)) return;
1909	+	ExecutorService es = (ExecutorService) e;
1910	+	try {
1911	+	es.submit((Runnable) null);
1912	+	shouldThrow();
1913	+	} catch (NullPointerException success) {}
1914	+	try {
1915	+	es.submit((Runnable) null, Boolean.TRUE);
1916	+	shouldThrow();
1917	+	} catch (NullPointerException success) {}
1918	+	try {
1919	+	es.submit((Callable) null);
1920	+	shouldThrow();
1921	+	} catch (NullPointerException success) {}
1922	+
1923	+	if (! (e instanceof ScheduledExecutorService)) return;
1924	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1925	+	try {
1926	+	ses.schedule((Runnable) null,
1927	+	randomTimeout(), randomTimeUnit());
1928	+	shouldThrow();
1929	+	} catch (NullPointerException success) {}
1930	+	try {
1931	+	ses.schedule((Callable) null,
1932	+	randomTimeout(), randomTimeUnit());
1933	+	shouldThrow();
1934	+	} catch (NullPointerException success) {}
1935	+	try {
1936	+	ses.scheduleAtFixedRate((Runnable) null,
1937	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1938	+	shouldThrow();
1939	+	} catch (NullPointerException success) {}
1940	+	try {
1941	+	ses.scheduleWithFixedDelay((Runnable) null,
1942	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1943	+	shouldThrow();
1944	+	} catch (NullPointerException success) {}
1945	+	}
1946	+
1947	+	void setRejectedExecutionHandler(
1948	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1949	+	p.setRejectedExecutionHandler(handler);
1950	+	assertSame(handler, p.getRejectedExecutionHandler());
1951	+	}
1952	+
1953	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1954	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1955	+	final long savedTaskCount = p.getTaskCount();
1956	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1957	+	final int savedQueueSize = p.getQueue().size();
1958	+	final boolean stock = (p.getClass().getClassLoader() == null);
1959	+
1960	+	Runnable r = () -> {};
1961	+	Callable<Boolean> c = () -> Boolean.TRUE;
1962	+
1963	+	class Recorder implements RejectedExecutionHandler {
1964	+	public volatile Runnable r = null;
1965	+	public volatile ThreadPoolExecutor p = null;
1966	+	public void reset() { r = null; p = null; }
1967	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1968	+	assertNull(this.r);
1969	+	assertNull(this.p);
1970	+	this.r = r;
1971	+	this.p = p;
1972	+	}
1973	+	}
1974	+
1975	+	// check custom handler is invoked exactly once per task
1976	+	Recorder recorder = new Recorder();
1977	+	setRejectedExecutionHandler(p, recorder);
1978	+	for (int i = 2; i--> 0; ) {
1979	+	recorder.reset();
1980	+	p.execute(r);
1981	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1982	+	assertSame(r, recorder.r);
1983	+	assertSame(p, recorder.p);
1984	+
1985	+	recorder.reset();
1986	+	assertFalse(p.submit(r).isDone());
1987	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1988	+	assertSame(p, recorder.p);
1989	+
1990	+	recorder.reset();
1991	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1992	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1993	+	assertSame(p, recorder.p);
1994	+
1995	+	recorder.reset();
1996	+	assertFalse(p.submit(c).isDone());
1997	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1998	+	assertSame(p, recorder.p);
1999	+
2000	+	if (p instanceof ScheduledExecutorService) {
2001	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2002	+	ScheduledFuture<?> future;
2003	+
2004	+	recorder.reset();
2005	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2006	+	assertFalse(future.isDone());
2007	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2008	+	assertSame(p, recorder.p);
2009	+
2010	+	recorder.reset();
2011	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2012	+	assertFalse(future.isDone());
2013	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2014	+	assertSame(p, recorder.p);
2015	+
2016	+	recorder.reset();
2017	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2018	+	assertFalse(future.isDone());
2019	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2020	+	assertSame(p, recorder.p);
2021	+
2022	+	recorder.reset();
2023	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2024	+	assertFalse(future.isDone());
2025	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2026	+	assertSame(p, recorder.p);
2027	+	}
2028	+	}
2029	+
2030	+	// Checking our custom handler above should be sufficient, but
2031	+	// we add some integration tests of standard handlers.
2032	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2033	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2034	+
2035	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2036	+	try {
2037	+	p.execute(setThread);
2038	+	shouldThrow();
2039	+	} catch (RejectedExecutionException success) {}
2040	+	assertNull(thread.get());
2041	+
2042	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2043	+	p.execute(setThread);
2044	+	assertNull(thread.get());
2045	+
2046	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2047	+	p.execute(setThread);
2048	+	if (p.isShutdown())
2049	+	assertNull(thread.get());
2050	+	else
2051	+	assertSame(Thread.currentThread(), thread.get());
2052	+
2053	+	setRejectedExecutionHandler(p, savedHandler);
2054	+
2055	+	// check that pool was not perturbed by handlers
2056	+	assertEquals(savedTaskCount, p.getTaskCount());
2057	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2058	+	assertEquals(savedQueueSize, p.getQueue().size());
2059	+	}
2060	+
2061	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2062	+	assertEquals(x, y);
2063	+	assertEquals(y, x);
2064	+	assertEquals(x.isEmpty(), y.isEmpty());
2065	+	assertEquals(x.size(), y.size());
2066	+	if (x instanceof List) {
2067	+	assertEquals(x.toString(), y.toString());
2068	+	}
2069	+	if (x instanceof List || x instanceof Set) {
2070	+	assertEquals(x.hashCode(), y.hashCode());
2071	+	}
2072	+	if (x instanceof List || x instanceof Deque) {
2073	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2074	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2075	+	y.toArray(new Object[0])));
2076	+	}
2077	+	}
2078	+
2079	+	/**
2080	+	* A weaker form of assertCollectionsEquals which does not insist
2081	+	* that the two collections satisfy Object#equals(Object), since
2082	+	* they may use identity semantics as Deques do.
2083	+	*/
2084	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2085	+	if (x instanceof List || x instanceof Set)
2086	+	assertCollectionsEquals(x, y);
2087	+	else {
2088	+	assertEquals(x.isEmpty(), y.isEmpty());
2089	+	assertEquals(x.size(), y.size());
2090	+	assertEquals(new HashSet(x), new HashSet(y));
2091	+	if (x instanceof Deque) {
2092	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2093	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2094	+	y.toArray(new Object[0])));
2095	+	}
2096	+	}
2097	+	}
2098		}

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