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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.179 by jsr166, Fri Oct 23 21:59:58 2015 UTC vs.
Revision 1.250 by jsr166, Sat Nov 24 21:48:19 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 73 | Line 117 | import junit.framework.TestSuite;
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	<	* {@code fail}, {@code assertTrue}, 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.
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 {@code super.setUp} and {@code super.tearDown} within
#	Line 112 | Line 164 | import junit.framework.TestSuite;
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
116	<	* isolation.
167	>	* cover multiple methods when they cannot be tested in isolation.
168		*
169		* <li>The documentation style for testcases is to provide as javadoc
170		* a simple sentence or two describing the property that the testcase
#	Line 176 | Line 227 | public class JSR166TestCase extends Test
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
#	Line 227 | Line 316 | public class JSR166TestCase extends Test
316
317		//     public static String cpuModel() {
318		//         try {
319	<	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
319	>	//             java.util.regex.Matcher matcher
320	>	//               = Pattern.compile("model name\\s*: (.*)")
321		//                 .matcher(new String(
322	<	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
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; }
#	Line 338 | Line 429 | public class JSR166TestCase extends Test
429		for (String testClassName : testClassNames) {
430		try {
431		Class<?> testClass = Class.forName(testClassName);
432	<	Method m = testClass.getDeclaredMethod("suite",
342	<	new Class<?>[0]);
432	>	Method m = testClass.getDeclaredMethod("suite");
433		suite.addTest(newTestSuite((Test)m.invoke(null)));
434	<	} catch (Exception e) {
435	<	throw new Error("Missing test class", e);
434	>	} catch (ReflectiveOperationException e) {
435	>	throw new AssertionError("Missing test class", e);
436		}
437		}
438		}
#	Line 364 | Line 454 | public class JSR166TestCase extends Test
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() {
461	<	return JAVA_CLASS_VERSION >= 53.0
462	<	// As of 2015-09, java9 still uses 52.0 class file version
373	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
374	<	}
375	<	public static boolean atLeastJava10() {
376	<	return JAVA_CLASS_VERSION >= 54.0
377	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
378	<	}
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.
#	Line 396 | Line 480 | public class JSR166TestCase extends Test
480		AbstractQueuedLongSynchronizerTest.suite(),
481		ArrayBlockingQueueTest.suite(),
482		ArrayDequeTest.suite(),
483	+	ArrayListTest.suite(),
484		AtomicBooleanTest.suite(),
485		AtomicIntegerArrayTest.suite(),
486		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 418 | Line 503 | public class JSR166TestCase extends Test
503		CopyOnWriteArrayListTest.suite(),
504		CopyOnWriteArraySetTest.suite(),
505		CountDownLatchTest.suite(),
506	+	CountedCompleterTest.suite(),
507		CyclicBarrierTest.suite(),
508		DelayQueueTest.suite(),
509		EntryTest.suite(),
#	Line 446 | Line 532 | public class JSR166TestCase extends Test
532		TreeMapTest.suite(),
533		TreeSetTest.suite(),
534		TreeSubMapTest.suite(),
535	<	TreeSubSetTest.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	<	"CountedCompleterTest",
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		}
#	Line 472 | Line 564 | public class JSR166TestCase extends Test
564		// Java9+ test classes
565		if (atLeastJava9()) {
566		String[] java9TestClassNames = {
567	<	// Currently empty, but expecting varhandle tests
567	>	"AtomicBoolean9Test",
568	>	"AtomicInteger9Test",
569	>	"AtomicIntegerArray9Test",
570	>	"AtomicLong9Test",
571	>	"AtomicLongArray9Test",
572	>	"AtomicReference9Test",
573	>	"AtomicReferenceArray9Test",
574	>	"ExecutorCompletionService9Test",
575	>	"ForkJoinPool9Test",
576		};
577		addNamedTestClasses(suite, java9TestClassNames);
578		}
#	Line 483 | Line 583 | public class JSR166TestCase extends Test
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<String>(methods.length);
586	>	ArrayList<String> names = new ArrayList<>(methods.length);
587		for (Method method : methods) {
588		if (method.getName().startsWith("test")
589		&& Modifier.isPublic(method.getModifiers())
#	Line 510 | Line 610 | public class JSR166TestCase extends Test
610		for (String methodName : testMethodNames(testClass))
611		suite.addTest((Test) c.newInstance(data, methodName));
612		return suite;
613	<	} catch (Exception e) {
614	<	throw new Error(e);
613	>	} catch (ReflectiveOperationException e) {
614	>	throw new AssertionError(e);
615		}
616		}
617
#	Line 527 | Line 627 | public class JSR166TestCase extends Test
627		if (atLeastJava8()) {
628		String name = testClass.getName();
629		String name8 = name.replaceAll("Test$", "8Test");
630	<	if (name.equals(name8)) throw new Error(name);
630	>	if (name.equals(name8)) throw new AssertionError(name);
631		try {
632		return (Test)
633		Class.forName(name8)
634	<	.getMethod("testSuite", new Class[] { dataClass })
634	>	.getMethod("testSuite", dataClass)
635		.invoke(null, data);
636	<	} catch (Exception e) {
637	<	throw new Error(e);
636	>	} catch (ReflectiveOperationException e) {
637	>	throw new AssertionError(e);
638		}
639		} else {
640		return new TestSuite();
#	Line 548 | Line 648 | public class JSR166TestCase extends Test
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 a timeout for use when any value at all will do.
665	+	*/
666	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
667	+
668		/**
669	<	* Returns the shortest timed delay. This could
670	<	* be reimplemented to use for example a Property.
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
688		/**
#	Line 566 | Line 695 | public class JSR166TestCase extends Test
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
703	<	* verify that operations block or time out.
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	<	long timeoutMillis() {
708	<	return SHORT_DELAY_MS / 4;
707	>	static long timeoutMillis() {
708	>	return TIMEOUT_DELAY_MS;
709		}
710
711		/**
#	Line 587 | Line 721 | public class JSR166TestCase extends Test
721		* The first exception encountered if any threadAssertXXX method fails.
722		*/
723		private final AtomicReference<Throwable> threadFailure
724	<	= new AtomicReference<Throwable>(null);
724	>	= new AtomicReference<>(null);
725
726		/**
727		* Records an exception so that it can be rethrown later in the test
#	Line 609 | Line 743 | public class JSR166TestCase extends Test
743		String msg = toString() + ": " + String.format(format, args);
744		System.err.println(msg);
745		dumpTestThreads();
746	<	throw new AssertionFailedError(msg);
746	>	throw new AssertionError(msg);
747		}
748
749		/**
#	Line 630 | Line 764 | public class JSR166TestCase extends Test
764		throw (RuntimeException) t;
765		else if (t instanceof Exception)
766		throw (Exception) t;
767	<	else {
768	<	AssertionFailedError afe =
635	<	new AssertionFailedError(t.toString());
636	<	afe.initCause(t);
637	<	throw afe;
638	<	}
767	>	else
768	>	throw new AssertionError(t.toString(), t);
769		}
770
771		if (Thread.interrupted())
#	Line 669 | Line 799 | public class JSR166TestCase extends Test
799
800		/**
801		* Just like fail(reason), but additionally recording (using
802	<	* threadRecordFailure) any AssertionFailedError thrown, so that
803	<	* the current testcase will fail.
802	>	* threadRecordFailure) any AssertionError thrown, so that the
803	>	* current testcase will fail.
804		*/
805		public void threadFail(String reason) {
806		try {
807		fail(reason);
808	<	} catch (AssertionFailedError t) {
809	<	threadRecordFailure(t);
810	<	throw t;
808	>	} catch (AssertionError fail) {
809	>	threadRecordFailure(fail);
810	>	throw fail;
811		}
812		}
813
814		/**
815		* Just like assertTrue(b), but additionally recording (using
816	<	* threadRecordFailure) any AssertionFailedError thrown, so that
817	<	* the current testcase will fail.
816	>	* threadRecordFailure) any AssertionError thrown, so that the
817	>	* current testcase will fail.
818		*/
819		public void threadAssertTrue(boolean b) {
820		try {
821		assertTrue(b);
822	<	} catch (AssertionFailedError t) {
823	<	threadRecordFailure(t);
824	<	throw t;
822	>	} catch (AssertionError fail) {
823	>	threadRecordFailure(fail);
824	>	throw fail;
825		}
826		}
827
828		/**
829		* Just like assertFalse(b), but additionally recording (using
830	<	* threadRecordFailure) any AssertionFailedError thrown, so that
831	<	* the current testcase will fail.
830	>	* threadRecordFailure) any AssertionError thrown, so that the
831	>	* current testcase will fail.
832		*/
833		public void threadAssertFalse(boolean b) {
834		try {
835		assertFalse(b);
836	<	} catch (AssertionFailedError t) {
837	<	threadRecordFailure(t);
838	<	throw t;
836	>	} catch (AssertionError fail) {
837	>	threadRecordFailure(fail);
838	>	throw fail;
839		}
840		}
841
842		/**
843		* Just like assertNull(x), but additionally recording (using
844	<	* threadRecordFailure) any AssertionFailedError thrown, so that
845	<	* the current testcase will fail.
844	>	* threadRecordFailure) any AssertionError thrown, so that the
845	>	* current testcase will fail.
846		*/
847		public void threadAssertNull(Object x) {
848		try {
849		assertNull(x);
850	<	} catch (AssertionFailedError t) {
851	<	threadRecordFailure(t);
852	<	throw t;
850	>	} catch (AssertionError fail) {
851	>	threadRecordFailure(fail);
852	>	throw fail;
853		}
854		}
855
856		/**
857		* Just like assertEquals(x, y), but additionally recording (using
858	<	* threadRecordFailure) any AssertionFailedError thrown, so that
859	<	* the current testcase will fail.
858	>	* threadRecordFailure) any AssertionError thrown, so that the
859	>	* current testcase will fail.
860		*/
861		public void threadAssertEquals(long x, long y) {
862		try {
863		assertEquals(x, y);
864	<	} catch (AssertionFailedError t) {
865	<	threadRecordFailure(t);
866	<	throw t;
864	>	} catch (AssertionError fail) {
865	>	threadRecordFailure(fail);
866	>	throw fail;
867		}
868		}
869
870		/**
871		* Just like assertEquals(x, y), but additionally recording (using
872	<	* threadRecordFailure) any AssertionFailedError thrown, so that
873	<	* the current testcase will fail.
872	>	* threadRecordFailure) any AssertionError thrown, so that the
873	>	* current testcase will fail.
874		*/
875		public void threadAssertEquals(Object x, Object y) {
876		try {
877		assertEquals(x, y);
878	<	} catch (AssertionFailedError fail) {
878	>	} catch (AssertionError fail) {
879		threadRecordFailure(fail);
880		throw fail;
881		} catch (Throwable fail) {
#	Line 755 | Line 885 | public class JSR166TestCase extends Test
885
886		/**
887		* Just like assertSame(x, y), but additionally recording (using
888	<	* threadRecordFailure) any AssertionFailedError thrown, so that
889	<	* the current testcase will fail.
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 (AssertionFailedError fail) {
894	>	} catch (AssertionError fail) {
895		threadRecordFailure(fail);
896		throw fail;
897		}
#	Line 783 | Line 913 | public class JSR166TestCase extends Test
913
914		/**
915		* Records the given exception using {@link #threadRecordFailure},
916	<	* then rethrows the exception, wrapping it in an
917	<	* AssertionFailedError if necessary.
916	>	* then rethrows the exception, wrapping it in an AssertionError
917	>	* if necessary.
918		*/
919		public void threadUnexpectedException(Throwable t) {
920		threadRecordFailure(t);
#	Line 793 | Line 923 | public class JSR166TestCase extends Test
923		throw (RuntimeException) t;
924		else if (t instanceof Error)
925		throw (Error) t;
926	<	else {
927	<	AssertionFailedError afe =
798	<	new AssertionFailedError("unexpected exception: " + t);
799	<	afe.initCause(t);
800	<	throw afe;
801	<	}
926	>	else
927	>	throw new AssertionError("unexpected exception: " + t, t);
928		}
929
930		/**
#	Line 866 | Line 992 | public class JSR166TestCase extends Test
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		* Waits out termination of a thread pool or fails doing so.
1005		*/
#	Line 889 | Line 1023 | public class JSR166TestCase extends Test
1023		}
1024		}
1025
1026	<	/** Like Runnable, but with the freedom to throw anything */
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		/**
#	Line 920 | Line 1058 | public class JSR166TestCase extends Test
1058		* Uninteresting threads are filtered out.
1059		*/
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	<	String name = info.getThreadName();
1073	>	final String name = info.getThreadName();
1074	>	String lockName;
1075		if ("Signal Dispatcher".equals(name))
1076		continue;
1077		if ("Reference Handler".equals(name)
1078	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1078	>	&& (lockName = info.getLockName()) != null
1079	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1080		continue;
1081		if ("Finalizer".equals(name)
1082	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
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 ------");
940	–	}
1090
1091	<	/**
943	<	* Checks that thread does not terminate within the default
944	<	* millisecond delay of {@code timeoutMillis()}.
945	<	*/
946	<	void assertThreadStaysAlive(Thread thread) {
947	<	assertThreadStaysAlive(thread, timeoutMillis());
1091	>	if (sm != null) System.setSecurityManager(sm);
1092		}
1093
1094		/**
1095	<	* Checks that thread does not terminate within the given millisecond delay.
1095	>	* Checks that thread eventually enters the expected blocked thread state.
1096		*/
1097	<	void assertThreadStaysAlive(Thread thread, long millis) {
1098	<	try {
1099	<	// No need to optimize the failing case via Thread.join.
1100	<	delay(millis);
1101	<	assertTrue(thread.isAlive());
1102	<	} catch (InterruptedException fail) {
1103	<	threadFail("Unexpected InterruptedException");
1104	<	}
1105	<	}
1106	<
1107	<	/**
1108	<	* Checks that the threads do not terminate within the default
1109	<	* millisecond delay of {@code timeoutMillis()}.
966	<	*/
967	<	void assertThreadsStayAlive(Thread... threads) {
968	<	assertThreadsStayAlive(timeoutMillis(), threads);
969	<	}
970	<
971	<	/**
972	<	* Checks that the threads do not terminate within the given millisecond delay.
973	<	*/
974	<	void assertThreadsStayAlive(long millis, Thread... threads) {
975	<	try {
976	<	// No need to optimize the failing case via Thread.join.
977	<	delay(millis);
978	<	for (Thread thread : threads)
979	<	assertTrue(thread.isAlive());
980	<	} catch (InterruptedException fail) {
981	<	threadFail("Unexpected InterruptedException");
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		/**
#	Line 1020 | Line 1149 | public class JSR166TestCase extends Test
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.
1159		*/
1160		public static final int SIZE = 20;
#	Line 1123 | Line 1258 | public class JSR166TestCase extends Test
1258		}
1259		public void refresh() {}
1260		public String toString() {
1261	<	List<Permission> ps = new ArrayList<Permission>();
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;
#	Line 1151 | Line 1286 | public class JSR166TestCase extends Test
1286
1287		/**
1288		* Sleeps until the given time has elapsed.
1289	<	* Throws AssertionFailedError if interrupted.
1289	>	* Throws AssertionError if interrupted.
1290		*/
1291	<	void sleep(long millis) {
1291	>	static void sleep(long millis) {
1292		try {
1293		delay(millis);
1294		} catch (InterruptedException fail) {
1295	<	AssertionFailedError afe =
1161	<	new AssertionFailedError("Unexpected InterruptedException");
1162	<	afe.initCause(fail);
1163	<	throw afe;
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	<	long startTime = System.nanoTime();
1306	<	for (;;) {
1307	<	Thread.State s = thread.getState();
1308	<	if (s == Thread.State.BLOCKED ||
1309	<	s == Thread.State.WAITING ||
1310	<	s == Thread.State.TIMED_WAITING)
1311	<	return;
1312	<	else if (s == Thread.State.TERMINATED)
1304	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
1305	>	Callable<Boolean> waitingForGodot) {
1306	>	for (long startTime = 0L;;) {
1307	>	switch (thread.getState()) {
1308	>	default: break;
1309	>	case BLOCKED: case WAITING: case TIMED_WAITING:
1310	>	try {
1311	>	if (waitingForGodot == null || waitingForGodot.call())
1312	>	return;
1313	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1314	>	break;
1315	>	case TERMINATED:
1316		fail("Unexpected thread termination");
1317	+	}
1318	+
1319	+	if (startTime == 0L)
1320	+	startTime = System.nanoTime();
1321		else if (millisElapsedSince(startTime) > timeoutMillis) {
1322	<	threadAssertTrue(thread.isAlive());
1323	<	return;
1322	>	assertTrue(thread.isAlive());
1323	>	if (waitingForGodot == null
1324	>	|| thread.getState() == Thread.State.RUNNABLE)
1325	>	fail("timed out waiting for thread to enter wait state");
1326	>	else
1327	>	fail("timed out waiting for condition, thread state="
1328	>	+ thread.getState());
1329		}
1330		Thread.yield();
1331		}
1332		}
1333
1334		/**
1335	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1336	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1335	>	* Spin-waits up to the specified number of milliseconds for the given
1336	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1337	>	*/
1338	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1339	>	waitForThreadToEnterWaitState(thread, timeoutMillis, null);
1340	>	}
1341	>
1342	>	/**
1343	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1344	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1345		*/
1346		void waitForThreadToEnterWaitState(Thread thread) {
1347	<	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1347	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
1348	>	}
1349	>
1350	>	/**
1351	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1352	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1353	>	* and additionally satisfy the given condition.
1354	>	*/
1355	>	void waitForThreadToEnterWaitState(Thread thread,
1356	>	Callable<Boolean> waitingForGodot) {
1357	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1358		}
1359
1360		/**
#	Line 1209 | Line 1372 | public class JSR166TestCase extends Test
1372		//             r.run();
1373		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1374		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1375	<	//             throw new AssertionFailedError("did not return promptly");
1375	>	//             throw new AssertionError("did not return promptly");
1376		//     }
1377
1378		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1222 | Line 1385 | public class JSR166TestCase extends Test
1385		*/
1386		<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1387		long startTime = System.nanoTime();
1388	+	T actual = null;
1389		try {
1390	<	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1390	>	actual = f.get(timeoutMillis, MILLISECONDS);
1391		} catch (Throwable fail) { threadUnexpectedException(fail); }
1392	+	assertEquals(expectedValue, actual);
1393		if (millisElapsedSince(startTime) > timeoutMillis/2)
1394	<	throw new AssertionFailedError("timed get did not return promptly");
1394	>	throw new AssertionError("timed get did not return promptly");
1395		}
1396
1397		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1284 | Line 1449 | public class JSR166TestCase extends Test
1449		}
1450		}
1451
1287	–	public abstract class RunnableShouldThrow implements Runnable {
1288	–	protected abstract void realRun() throws Throwable;
1289	–
1290	–	final Class<?> exceptionClass;
1291	–
1292	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1293	–	this.exceptionClass = exceptionClass;
1294	–	}
1295	–
1296	–	public final void run() {
1297	–	try {
1298	–	realRun();
1299	–	threadShouldThrow(exceptionClass.getSimpleName());
1300	–	} catch (Throwable t) {
1301	–	if (! exceptionClass.isInstance(t))
1302	–	threadUnexpectedException(t);
1303	–	}
1304	–	}
1305	–	}
1306	–
1452		public abstract class ThreadShouldThrow extends Thread {
1453		protected abstract void realRun() throws Throwable;
1454
#	Line 1316 | Line 1461 | public class JSR166TestCase extends Test
1461		public final void run() {
1462		try {
1463		realRun();
1319	–	threadShouldThrow(exceptionClass.getSimpleName());
1464		} catch (Throwable t) {
1465		if (! exceptionClass.isInstance(t))
1466		threadUnexpectedException(t);
1467	+	return;
1468		}
1469	+	threadShouldThrow(exceptionClass.getSimpleName());
1470		}
1471		}
1472
#	Line 1330 | Line 1476 | public class JSR166TestCase extends Test
1476		public final void run() {
1477		try {
1478		realRun();
1333	–	threadShouldThrow("InterruptedException");
1479		} catch (InterruptedException success) {
1480		threadAssertFalse(Thread.interrupted());
1481	+	return;
1482		} catch (Throwable fail) {
1483		threadUnexpectedException(fail);
1484		}
1485	+	threadShouldThrow("InterruptedException");
1486		}
1487		}
1488
#	Line 1347 | Line 1494 | public class JSR166TestCase extends Test
1494		return realCall();
1495		} catch (Throwable fail) {
1496		threadUnexpectedException(fail);
1350	–	return null;
1497		}
1498	<	}
1353	<	}
1354	<
1355	<	public abstract class CheckedInterruptedCallable<T>
1356	<	implements Callable<T> {
1357	<	protected abstract T realCall() throws Throwable;
1358	<
1359	<	public final T call() {
1360	<	try {
1361	<	T result = realCall();
1362	<	threadShouldThrow("InterruptedException");
1363	<	return result;
1364	<	} catch (InterruptedException success) {
1365	<	threadAssertFalse(Thread.interrupted());
1366	<	} catch (Throwable fail) {
1367	<	threadUnexpectedException(fail);
1368	<	}
1369	<	return null;
1498	>	throw new AssertionError("unreached");
1499		}
1500		}
1501
#	Line 1422 | Line 1551 | public class JSR166TestCase extends Test
1551		return new LatchAwaiter(latch);
1552		}
1553
1554	<	public void await(CountDownLatch latch) {
1554	>	public void await(CountDownLatch latch, long timeoutMillis) {
1555	>	boolean timedOut = false;
1556		try {
1557	<	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1428	<	fail("timed out waiting for CountDownLatch for "
1429	<	+ (LONG_DELAY_MS/1000) + " sec");
1557	>	timedOut = !latch.await(timeoutMillis, MILLISECONDS);
1558		} catch (Throwable fail) {
1559		threadUnexpectedException(fail);
1560		}
1561	+	if (timedOut)
1562	+	fail("timed out waiting for CountDownLatch for "
1563	+	+ (timeoutMillis/1000) + " sec");
1564	+	}
1565	+
1566	+	public void await(CountDownLatch latch) {
1567	+	await(latch, LONG_DELAY_MS);
1568		}
1569
1570		public void await(Semaphore semaphore) {
1571	+	boolean timedOut = false;
1572	+	try {
1573	+	timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
1574	+	} catch (Throwable fail) {
1575	+	threadUnexpectedException(fail);
1576	+	}
1577	+	if (timedOut)
1578	+	fail("timed out waiting for Semaphore for "
1579	+	+ (LONG_DELAY_MS/1000) + " sec");
1580	+	}
1581	+
1582	+	public void await(CyclicBarrier barrier) {
1583		try {
1584	<	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1438	<	fail("timed out waiting for Semaphore for "
1439	<	+ (LONG_DELAY_MS/1000) + " sec");
1584	>	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1585		} catch (Throwable fail) {
1586		threadUnexpectedException(fail);
1587		}
#	Line 1456 | Line 1601 | public class JSR166TestCase extends Test
1601		//         long startTime = System.nanoTime();
1602		//         while (!flag.get()) {
1603		//             if (millisElapsedSince(startTime) > timeoutMillis)
1604	<	//                 throw new AssertionFailedError("timed out");
1604	>	//                 throw new AssertionError("timed out");
1605		//             Thread.yield();
1606		//         }
1607		//     }
#	Line 1465 | Line 1610 | public class JSR166TestCase extends Test
1610		public String call() { throw new NullPointerException(); }
1611		}
1612
1468	–	public static class CallableOne implements Callable<Integer> {
1469	–	public Integer call() { return one; }
1470	–	}
1471	–
1472	–	public class ShortRunnable extends CheckedRunnable {
1473	–	protected void realRun() throws Throwable {
1474	–	delay(SHORT_DELAY_MS);
1475	–	}
1476	–	}
1477	–
1478	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1479	–	protected void realRun() throws InterruptedException {
1480	–	delay(SHORT_DELAY_MS);
1481	–	}
1482	–	}
1483	–
1484	–	public class SmallRunnable extends CheckedRunnable {
1485	–	protected void realRun() throws Throwable {
1486	–	delay(SMALL_DELAY_MS);
1487	–	}
1488	–	}
1489	–
1490	–	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1491	–	protected void realRun() {
1492	–	try {
1493	–	delay(SMALL_DELAY_MS);
1494	–	} catch (InterruptedException ok) {}
1495	–	}
1496	–	}
1497	–
1498	–	public class SmallCallable extends CheckedCallable {
1499	–	protected Object realCall() throws InterruptedException {
1500	–	delay(SMALL_DELAY_MS);
1501	–	return Boolean.TRUE;
1502	–	}
1503	–	}
1504	–
1505	–	public class MediumRunnable extends CheckedRunnable {
1506	–	protected void realRun() throws Throwable {
1507	–	delay(MEDIUM_DELAY_MS);
1508	–	}
1509	–	}
1510	–
1511	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1512	–	protected void realRun() throws InterruptedException {
1513	–	delay(MEDIUM_DELAY_MS);
1514	–	}
1515	–	}
1516	–
1613		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1614		return new CheckedRunnable() {
1615		protected void realRun() {
#	Line 1523 | Line 1619 | public class JSR166TestCase extends Test
1619		}};
1620		}
1621
1526	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1527	–	protected void realRun() {
1528	–	try {
1529	–	delay(MEDIUM_DELAY_MS);
1530	–	} catch (InterruptedException ok) {}
1531	–	}
1532	–	}
1533	–
1534	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1535	–	protected void realRun() {
1536	–	try {
1537	–	delay(LONG_DELAY_MS);
1538	–	} catch (InterruptedException ok) {}
1539	–	}
1540	–	}
1541	–
1622		/**
1623		* For use as ThreadFactory in constructors
1624		*/
#	Line 1552 | Line 1632 | public class JSR166TestCase extends Test
1632		boolean isDone();
1633		}
1634
1555	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1556	–	return new TrackedRunnable() {
1557	–	private volatile boolean done = false;
1558	–	public boolean isDone() { return done; }
1559	–	public void run() {
1560	–	try {
1561	–	delay(timeoutMillis);
1562	–	done = true;
1563	–	} catch (InterruptedException ok) {}
1564	–	}
1565	–	};
1566	–	}
1567	–
1568	–	public static class TrackedShortRunnable implements Runnable {
1569	–	public volatile boolean done = false;
1570	–	public void run() {
1571	–	try {
1572	–	delay(SHORT_DELAY_MS);
1573	–	done = true;
1574	–	} catch (InterruptedException ok) {}
1575	–	}
1576	–	}
1577	–
1578	–	public static class TrackedSmallRunnable implements Runnable {
1579	–	public volatile boolean done = false;
1580	–	public void run() {
1581	–	try {
1582	–	delay(SMALL_DELAY_MS);
1583	–	done = true;
1584	–	} catch (InterruptedException ok) {}
1585	–	}
1586	–	}
1587	–
1588	–	public static class TrackedMediumRunnable implements Runnable {
1589	–	public volatile boolean done = false;
1590	–	public void run() {
1591	–	try {
1592	–	delay(MEDIUM_DELAY_MS);
1593	–	done = true;
1594	–	} catch (InterruptedException ok) {}
1595	–	}
1596	–	}
1597	–
1598	–	public static class TrackedLongRunnable implements Runnable {
1599	–	public volatile boolean done = false;
1600	–	public void run() {
1601	–	try {
1602	–	delay(LONG_DELAY_MS);
1603	–	done = true;
1604	–	} catch (InterruptedException ok) {}
1605	–	}
1606	–	}
1607	–
1635		public static class TrackedNoOpRunnable implements Runnable {
1636		public volatile boolean done = false;
1637		public void run() {
#	Line 1612 | Line 1639 | public class JSR166TestCase extends Test
1639		}
1640		}
1641
1615	–	public static class TrackedCallable implements Callable {
1616	–	public volatile boolean done = false;
1617	–	public Object call() {
1618	–	try {
1619	–	delay(SMALL_DELAY_MS);
1620	–	done = true;
1621	–	} catch (InterruptedException ok) {}
1622	–	return Boolean.TRUE;
1623	–	}
1624	–	}
1625	–
1642		/**
1643		* Analog of CheckedRunnable for RecursiveAction
1644		*/
#	Line 1649 | Line 1665 | public class JSR166TestCase extends Test
1665		return realCompute();
1666		} catch (Throwable fail) {
1667		threadUnexpectedException(fail);
1652	–	return null;
1668		}
1669	+	throw new AssertionError("unreached");
1670		}
1671		}
1672
#	Line 1664 | Line 1680 | public class JSR166TestCase extends Test
1680
1681		/**
1682		* A CyclicBarrier that uses timed await and fails with
1683	<	* AssertionFailedErrors instead of throwing checked exceptions.
1683	>	* AssertionErrors instead of throwing checked exceptions.
1684		*/
1685	<	public class CheckedBarrier extends CyclicBarrier {
1685	>	public static class CheckedBarrier extends CyclicBarrier {
1686		public CheckedBarrier(int parties) { super(parties); }
1687
1688		public int await() {
1689		try {
1690		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1691		} catch (TimeoutException timedOut) {
1692	<	throw new AssertionFailedError("timed out");
1692	>	throw new AssertionError("timed out");
1693		} catch (Exception fail) {
1694	<	AssertionFailedError afe =
1679	<	new AssertionFailedError("Unexpected exception: " + fail);
1680	<	afe.initCause(fail);
1681	<	throw afe;
1694	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1695		}
1696		}
1697		}
#	Line 1689 | Line 1702 | public class JSR166TestCase extends Test
1702		assertEquals(0, q.size());
1703		assertNull(q.peek());
1704		assertNull(q.poll());
1705	<	assertNull(q.poll(0, MILLISECONDS));
1705	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1706		assertEquals(q.toString(), "[]");
1707		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1708		assertFalse(q.iterator().hasNext());
#	Line 1730 | Line 1743 | public class JSR166TestCase extends Test
1743		}
1744		}
1745
1746	+	void assertImmutable(final Object o) {
1747	+	if (o instanceof Collection) {
1748	+	assertThrows(
1749	+	UnsupportedOperationException.class,
1750	+	new Runnable() { public void run() {
1751	+	((Collection) o).add(null);}});
1752	+	}
1753	+	}
1754	+
1755		@SuppressWarnings("unchecked")
1756		<T> T serialClone(T o) {
1757	+	T clone = null;
1758		try {
1759		ObjectInputStream ois = new ObjectInputStream
1760		(new ByteArrayInputStream(serialBytes(o)));
1761	<	T clone = (T) ois.readObject();
1739	<	assertSame(o.getClass(), clone.getClass());
1740	<	return clone;
1761	>	clone = (T) ois.readObject();
1762		} catch (Throwable fail) {
1763		threadUnexpectedException(fail);
1764	+	}
1765	+	if (o == clone) assertImmutable(o);
1766	+	else assertSame(o.getClass(), clone.getClass());
1767	+	return clone;
1768	+	}
1769	+
1770	+	/**
1771	+	* A version of serialClone that leaves error handling (for
1772	+	* e.g. NotSerializableException) up to the caller.
1773	+	*/
1774	+	@SuppressWarnings("unchecked")
1775	+	<T> T serialClonePossiblyFailing(T o)
1776	+	throws ReflectiveOperationException, java.io.IOException {
1777	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1778	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1779	+	oos.writeObject(o);
1780	+	oos.flush();
1781	+	oos.close();
1782	+	ObjectInputStream ois = new ObjectInputStream
1783	+	(new ByteArrayInputStream(bos.toByteArray()));
1784	+	T clone = (T) ois.readObject();
1785	+	if (o == clone) assertImmutable(o);
1786	+	else assertSame(o.getClass(), clone.getClass());
1787	+	return clone;
1788	+	}
1789	+
1790	+	/**
1791	+	* If o implements Cloneable and has a public clone method,
1792	+	* returns a clone of o, else null.
1793	+	*/
1794	+	@SuppressWarnings("unchecked")
1795	+	<T> T cloneableClone(T o) {
1796	+	if (!(o instanceof Cloneable)) return null;
1797	+	final T clone;
1798	+	try {
1799	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1800	+	} catch (NoSuchMethodException ok) {
1801		return null;
1802	+	} catch (ReflectiveOperationException unexpected) {
1803	+	throw new Error(unexpected);
1804		}
1805	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1806	+	assertSame(o.getClass(), clone.getClass());
1807	+	return clone;
1808		}
1809
1810		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
#	Line 1751 | Line 1814 | public class JSR166TestCase extends Test
1814		try { throwingAction.run(); }
1815		catch (Throwable t) {
1816		threw = true;
1817	<	if (!expectedExceptionClass.isInstance(t)) {
1818	<	AssertionFailedError afe =
1819	<	new AssertionFailedError
1820	<	("Expected " + expectedExceptionClass.getName() +
1821	<	", got " + t.getClass().getName());
1759	<	afe.initCause(t);
1760	<	threadUnexpectedException(afe);
1761	<	}
1817	>	if (!expectedExceptionClass.isInstance(t))
1818	>	throw new AssertionError(
1819	>	"Expected " + expectedExceptionClass.getName() +
1820	>	", got " + t.getClass().getName(),
1821	>	t);
1822		}
1823		if (!threw)
1824		shouldThrow(expectedExceptionClass.getName());
#	Line 1772 | Line 1832 | public class JSR166TestCase extends Test
1832		} catch (NoSuchElementException success) {}
1833		assertFalse(it.hasNext());
1834		}
1835	+
1836	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1837	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1838	+	}
1839	+
1840	+	public Runnable runnableThrowing(final RuntimeException ex) {
1841	+	return new Runnable() { public void run() { throw ex; }};
1842	+	}
1843	+
1844	+	/** A reusable thread pool to be shared by tests. */
1845	+	static final ExecutorService cachedThreadPool =
1846	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1847	+	1000L, MILLISECONDS,
1848	+	new SynchronousQueue<Runnable>());
1849	+
1850	+	static <T> void shuffle(T[] array) {
1851	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1852	+	}
1853	+
1854	+	/**
1855	+	* Returns the same String as would be returned by {@link
1856	+	* Object#toString}, whether or not the given object's class
1857	+	* overrides toString().
1858	+	*
1859	+	* @see System#identityHashCode
1860	+	*/
1861	+	static String identityString(Object x) {
1862	+	return x.getClass().getName()
1863	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1864	+	}
1865	+
1866	+	// --- Shared assertions for Executor tests ---
1867	+
1868	+	/**
1869	+	* Returns maximum number of tasks that can be submitted to given
1870	+	* pool (with bounded queue) before saturation (when submission
1871	+	* throws RejectedExecutionException).
1872	+	*/
1873	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1874	+	BlockingQueue<Runnable> q = pool.getQueue();
1875	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1876	+	}
1877	+
1878	+	@SuppressWarnings("FutureReturnValueIgnored")
1879	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1880	+	try {
1881	+	e.execute((Runnable) null);
1882	+	shouldThrow();
1883	+	} catch (NullPointerException success) {}
1884	+
1885	+	if (! (e instanceof ExecutorService)) return;
1886	+	ExecutorService es = (ExecutorService) e;
1887	+	try {
1888	+	es.submit((Runnable) null);
1889	+	shouldThrow();
1890	+	} catch (NullPointerException success) {}
1891	+	try {
1892	+	es.submit((Runnable) null, Boolean.TRUE);
1893	+	shouldThrow();
1894	+	} catch (NullPointerException success) {}
1895	+	try {
1896	+	es.submit((Callable) null);
1897	+	shouldThrow();
1898	+	} catch (NullPointerException success) {}
1899	+
1900	+	if (! (e instanceof ScheduledExecutorService)) return;
1901	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1902	+	try {
1903	+	ses.schedule((Runnable) null,
1904	+	randomTimeout(), randomTimeUnit());
1905	+	shouldThrow();
1906	+	} catch (NullPointerException success) {}
1907	+	try {
1908	+	ses.schedule((Callable) null,
1909	+	randomTimeout(), randomTimeUnit());
1910	+	shouldThrow();
1911	+	} catch (NullPointerException success) {}
1912	+	try {
1913	+	ses.scheduleAtFixedRate((Runnable) null,
1914	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1915	+	shouldThrow();
1916	+	} catch (NullPointerException success) {}
1917	+	try {
1918	+	ses.scheduleWithFixedDelay((Runnable) null,
1919	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1920	+	shouldThrow();
1921	+	} catch (NullPointerException success) {}
1922	+	}
1923	+
1924	+	void setRejectedExecutionHandler(
1925	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1926	+	p.setRejectedExecutionHandler(handler);
1927	+	assertSame(handler, p.getRejectedExecutionHandler());
1928	+	}
1929	+
1930	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1931	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1932	+	final long savedTaskCount = p.getTaskCount();
1933	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1934	+	final int savedQueueSize = p.getQueue().size();
1935	+	final boolean stock = (p.getClass().getClassLoader() == null);
1936	+
1937	+	Runnable r = () -> {};
1938	+	Callable<Boolean> c = () -> Boolean.TRUE;
1939	+
1940	+	class Recorder implements RejectedExecutionHandler {
1941	+	public volatile Runnable r = null;
1942	+	public volatile ThreadPoolExecutor p = null;
1943	+	public void reset() { r = null; p = null; }
1944	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1945	+	assertNull(this.r);
1946	+	assertNull(this.p);
1947	+	this.r = r;
1948	+	this.p = p;
1949	+	}
1950	+	}
1951	+
1952	+	// check custom handler is invoked exactly once per task
1953	+	Recorder recorder = new Recorder();
1954	+	setRejectedExecutionHandler(p, recorder);
1955	+	for (int i = 2; i--> 0; ) {
1956	+	recorder.reset();
1957	+	p.execute(r);
1958	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1959	+	assertSame(r, recorder.r);
1960	+	assertSame(p, recorder.p);
1961	+
1962	+	recorder.reset();
1963	+	assertFalse(p.submit(r).isDone());
1964	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1965	+	assertSame(p, recorder.p);
1966	+
1967	+	recorder.reset();
1968	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1969	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1970	+	assertSame(p, recorder.p);
1971	+
1972	+	recorder.reset();
1973	+	assertFalse(p.submit(c).isDone());
1974	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1975	+	assertSame(p, recorder.p);
1976	+
1977	+	if (p instanceof ScheduledExecutorService) {
1978	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1979	+	ScheduledFuture<?> future;
1980	+
1981	+	recorder.reset();
1982	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
1983	+	assertFalse(future.isDone());
1984	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1985	+	assertSame(p, recorder.p);
1986	+
1987	+	recorder.reset();
1988	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
1989	+	assertFalse(future.isDone());
1990	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1991	+	assertSame(p, recorder.p);
1992	+
1993	+	recorder.reset();
1994	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1995	+	assertFalse(future.isDone());
1996	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1997	+	assertSame(p, recorder.p);
1998	+
1999	+	recorder.reset();
2000	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2001	+	assertFalse(future.isDone());
2002	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2003	+	assertSame(p, recorder.p);
2004	+	}
2005	+	}
2006	+
2007	+	// Checking our custom handler above should be sufficient, but
2008	+	// we add some integration tests of standard handlers.
2009	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2010	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2011	+
2012	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2013	+	try {
2014	+	p.execute(setThread);
2015	+	shouldThrow();
2016	+	} catch (RejectedExecutionException success) {}
2017	+	assertNull(thread.get());
2018	+
2019	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2020	+	p.execute(setThread);
2021	+	assertNull(thread.get());
2022	+
2023	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2024	+	p.execute(setThread);
2025	+	if (p.isShutdown())
2026	+	assertNull(thread.get());
2027	+	else
2028	+	assertSame(Thread.currentThread(), thread.get());
2029	+
2030	+	setRejectedExecutionHandler(p, savedHandler);
2031	+
2032	+	// check that pool was not perturbed by handlers
2033	+	assertEquals(savedTaskCount, p.getTaskCount());
2034	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2035	+	assertEquals(savedQueueSize, p.getQueue().size());
2036	+	}
2037	+
2038	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2039	+	assertEquals(x, y);
2040	+	assertEquals(y, x);
2041	+	assertEquals(x.isEmpty(), y.isEmpty());
2042	+	assertEquals(x.size(), y.size());
2043	+	if (x instanceof List) {
2044	+	assertEquals(x.toString(), y.toString());
2045	+	}
2046	+	if (x instanceof List || x instanceof Set) {
2047	+	assertEquals(x.hashCode(), y.hashCode());
2048	+	}
2049	+	if (x instanceof List || x instanceof Deque) {
2050	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2051	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2052	+	y.toArray(new Object[0])));
2053	+	}
2054	+	}
2055	+
2056	+	/**
2057	+	* A weaker form of assertCollectionsEquals which does not insist
2058	+	* that the two collections satisfy Object#equals(Object), since
2059	+	* they may use identity semantics as Deques do.
2060	+	*/
2061	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2062	+	if (x instanceof List || x instanceof Set)
2063	+	assertCollectionsEquals(x, y);
2064	+	else {
2065	+	assertEquals(x.isEmpty(), y.isEmpty());
2066	+	assertEquals(x.size(), y.size());
2067	+	assertEquals(new HashSet(x), new HashSet(y));
2068	+	if (x instanceof Deque) {
2069	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2070	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2071	+	y.toArray(new Object[0])));
2072	+	}
2073	+	}
2074	+	}
2075		}

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