ViewVC Help

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

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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.184 by jsr166, Wed Feb 10 00:05:20 2016 UTC vs.
Revision 1.243 by jsr166, Thu Apr 5 03:36:54 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.
#	Line 8 | Line 9
9
10		/*
11		* @test
12	<	* @summary JSR-166 tck tests
13	<	* @modules java.management
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	<	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
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;
#	Line 28 | 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;
31	–	import java.nio.file.Files;
32	–	import java.nio.file.Paths;
57		import java.security.CodeSource;
58		import java.security.Permission;
59		import java.security.PermissionCollection;
#	Line 39 | 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;
65	–	import java.util.regex.Matcher;
103		import java.util.regex.Pattern;
104
68	–	import junit.framework.AssertionFailedError;
105		import junit.framework.Test;
106		import junit.framework.TestCase;
107		import junit.framework.TestResult;
#	Line 184 | Line 220 | public class JSR166TestCase extends Test
220		Integer.getInteger("jsr166.suiteRuns", 1);
221
222		/**
223	<	* The scaling factor to apply to standard delays used in tests.
223	>	* Returns the value of the system property, or NaN if not defined.
224		*/
225	<	private static final int delayFactor =
226	<	Integer.getInteger("jsr166.delay.factor", 1);
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); }
#	Line 240 | 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 351 | 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",
355	<	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 377 | 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
385	<	// As of 2015-09, java9 still uses 52.0 class file version
386	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
387	<	}
388	<	public static boolean atLeastJava10() {
389	<	return JAVA_CLASS_VERSION >= 54.0
390	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
391	<	}
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
455		/**
456		* Collects all JSR166 unit tests as one suite.
#	Line 409 | Line 471 | public class JSR166TestCase extends Test
471		AbstractQueuedLongSynchronizerTest.suite(),
472		ArrayBlockingQueueTest.suite(),
473		ArrayDequeTest.suite(),
474	+	ArrayListTest.suite(),
475		AtomicBooleanTest.suite(),
476		AtomicIntegerArrayTest.suite(),
477		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 431 | Line 494 | public class JSR166TestCase extends Test
494		CopyOnWriteArrayListTest.suite(),
495		CopyOnWriteArraySetTest.suite(),
496		CountDownLatchTest.suite(),
497	+	CountedCompleterTest.suite(),
498		CyclicBarrierTest.suite(),
499		DelayQueueTest.suite(),
500		EntryTest.suite(),
#	Line 459 | Line 523 | public class JSR166TestCase extends Test
523		TreeMapTest.suite(),
524		TreeSetTest.suite(),
525		TreeSubMapTest.suite(),
526	<	TreeSubSetTest.suite());
526	>	TreeSubSetTest.suite(),
527	>	VectorTest.suite());
528
529		// Java8+ test classes
530		if (atLeastJava8()) {
531		String[] java8TestClassNames = {
532	+	"ArrayDeque8Test",
533		"Atomic8Test",
534		"CompletableFutureTest",
535		"ConcurrentHashMap8Test",
536	<	"CountedCompleterTest",
536	>	"CountedCompleter8Test",
537		"DoubleAccumulatorTest",
538		"DoubleAdderTest",
539		"ForkJoinPool8Test",
540		"ForkJoinTask8Test",
541	+	"HashMapTest",
542	+	"LinkedBlockingDeque8Test",
543	+	"LinkedBlockingQueue8Test",
544		"LongAccumulatorTest",
545		"LongAdderTest",
546		"SplittableRandomTest",
547		"StampedLockTest",
548		"SubmissionPublisherTest",
549		"ThreadLocalRandom8Test",
550	+	"TimeUnit8Test",
551		};
552		addNamedTestClasses(suite, java8TestClassNames);
553		}
#	Line 485 | Line 555 | public class JSR166TestCase extends Test
555		// Java9+ test classes
556		if (atLeastJava9()) {
557		String[] java9TestClassNames = {
558	<	// Currently empty, but expecting varhandle tests
558	>	"AtomicBoolean9Test",
559	>	"AtomicInteger9Test",
560	>	"AtomicIntegerArray9Test",
561	>	"AtomicLong9Test",
562	>	"AtomicLongArray9Test",
563	>	"AtomicReference9Test",
564	>	"AtomicReferenceArray9Test",
565	>	"ExecutorCompletionService9Test",
566	>	"ForkJoinPool9Test",
567		};
568		addNamedTestClasses(suite, java9TestClassNames);
569		}
#	Line 496 | Line 574 | public class JSR166TestCase extends Test
574		/** Returns list of junit-style test method names in given class. */
575		public static ArrayList<String> testMethodNames(Class<?> testClass) {
576		Method[] methods = testClass.getDeclaredMethods();
577	<	ArrayList<String> names = new ArrayList<String>(methods.length);
577	>	ArrayList<String> names = new ArrayList<>(methods.length);
578		for (Method method : methods) {
579		if (method.getName().startsWith("test")
580		&& Modifier.isPublic(method.getModifiers())
#	Line 523 | Line 601 | public class JSR166TestCase extends Test
601		for (String methodName : testMethodNames(testClass))
602		suite.addTest((Test) c.newInstance(data, methodName));
603		return suite;
604	<	} catch (Exception e) {
605	<	throw new Error(e);
604	>	} catch (ReflectiveOperationException e) {
605	>	throw new AssertionError(e);
606		}
607		}
608
#	Line 540 | Line 618 | public class JSR166TestCase extends Test
618		if (atLeastJava8()) {
619		String name = testClass.getName();
620		String name8 = name.replaceAll("Test$", "8Test");
621	<	if (name.equals(name8)) throw new Error(name);
621	>	if (name.equals(name8)) throw new AssertionError(name);
622		try {
623		return (Test)
624		Class.forName(name8)
625	<	.getMethod("testSuite", new Class[] { dataClass })
625	>	.getMethod("testSuite", dataClass)
626		.invoke(null, data);
627	<	} catch (Exception e) {
628	<	throw new Error(e);
627	>	} catch (ReflectiveOperationException e) {
628	>	throw new AssertionError(e);
629		}
630		} else {
631		return new TestSuite();
#	Line 561 | Line 639 | public class JSR166TestCase extends Test
639		public static long MEDIUM_DELAY_MS;
640		public static long LONG_DELAY_MS;
641
642	+	private static final long RANDOM_TIMEOUT;
643	+	private static final long RANDOM_EXPIRED_TIMEOUT;
644	+	private static final TimeUnit RANDOM_TIMEUNIT;
645	+	static {
646	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
647	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
648	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
649	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
650	+	TimeUnit[] timeUnits = TimeUnit.values();
651	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
652	+	}
653	+
654	+	/**
655	+	* Returns a timeout for use when any value at all will do.
656	+	*/
657	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
658	+
659	+	/**
660	+	* Returns a timeout that means "no waiting", i.e. not positive.
661	+	*/
662	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
663	+
664	+	/**
665	+	* Returns a random non-null TimeUnit.
666	+	*/
667	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
668	+
669		/**
670		* Returns the shortest timed delay. This can be scaled up for
671	<	* slow machines using the jsr166.delay.factor system property.
671	>	* slow machines using the jsr166.delay.factor system property,
672	>	* or via jtreg's -timeoutFactor: flag.
673	>	* http://openjdk.java.net/jtreg/command-help.html
674		*/
675		protected long getShortDelay() {
676	<	return 50 * delayFactor;
676	>	return (long) (50 * delayFactor);
677		}
678
679		/**
#	Line 579 | Line 686 | public class JSR166TestCase extends Test
686		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
687		}
688
689	+	private static final long TIMEOUT_DELAY_MS
690	+	= (long) (12.0 * Math.cbrt(delayFactor));
691	+
692		/**
693	<	* Returns a timeout in milliseconds to be used in tests that
694	<	* verify that operations block or time out.
693	>	* Returns a timeout in milliseconds to be used in tests that verify
694	>	* that operations block or time out.  We want this to be longer
695	>	* than the OS scheduling quantum, but not too long, so don't scale
696	>	* linearly with delayFactor; we use "crazy" cube root instead.
697		*/
698	<	long timeoutMillis() {
699	<	return SHORT_DELAY_MS / 4;
698	>	static long timeoutMillis() {
699	>	return TIMEOUT_DELAY_MS;
700		}
701
702		/**
#	Line 600 | Line 712 | public class JSR166TestCase extends Test
712		* The first exception encountered if any threadAssertXXX method fails.
713		*/
714		private final AtomicReference<Throwable> threadFailure
715	<	= new AtomicReference<Throwable>(null);
715	>	= new AtomicReference<>(null);
716
717		/**
718		* Records an exception so that it can be rethrown later in the test
#	Line 622 | Line 734 | public class JSR166TestCase extends Test
734		String msg = toString() + ": " + String.format(format, args);
735		System.err.println(msg);
736		dumpTestThreads();
737	<	throw new AssertionFailedError(msg);
737	>	throw new AssertionError(msg);
738		}
739
740		/**
#	Line 643 | Line 755 | public class JSR166TestCase extends Test
755		throw (RuntimeException) t;
756		else if (t instanceof Exception)
757		throw (Exception) t;
758	<	else {
759	<	AssertionFailedError afe =
648	<	new AssertionFailedError(t.toString());
649	<	afe.initCause(t);
650	<	throw afe;
651	<	}
758	>	else
759	>	throw new AssertionError(t.toString(), t);
760		}
761
762		if (Thread.interrupted())
#	Line 682 | Line 790 | public class JSR166TestCase extends Test
790
791		/**
792		* Just like fail(reason), but additionally recording (using
793	<	* threadRecordFailure) any AssertionFailedError thrown, so that
794	<	* the current testcase will fail.
793	>	* threadRecordFailure) any AssertionError thrown, so that the
794	>	* current testcase will fail.
795		*/
796		public void threadFail(String reason) {
797		try {
798		fail(reason);
799	<	} catch (AssertionFailedError t) {
800	<	threadRecordFailure(t);
801	<	throw t;
799	>	} catch (AssertionError fail) {
800	>	threadRecordFailure(fail);
801	>	throw fail;
802		}
803		}
804
805		/**
806		* Just like assertTrue(b), but additionally recording (using
807	<	* threadRecordFailure) any AssertionFailedError thrown, so that
808	<	* the current testcase will fail.
807	>	* threadRecordFailure) any AssertionError thrown, so that the
808	>	* current testcase will fail.
809		*/
810		public void threadAssertTrue(boolean b) {
811		try {
812		assertTrue(b);
813	<	} catch (AssertionFailedError t) {
814	<	threadRecordFailure(t);
815	<	throw t;
813	>	} catch (AssertionError fail) {
814	>	threadRecordFailure(fail);
815	>	throw fail;
816		}
817		}
818
819		/**
820		* Just like assertFalse(b), but additionally recording (using
821	<	* threadRecordFailure) any AssertionFailedError thrown, so that
822	<	* the current testcase will fail.
821	>	* threadRecordFailure) any AssertionError thrown, so that the
822	>	* current testcase will fail.
823		*/
824		public void threadAssertFalse(boolean b) {
825		try {
826		assertFalse(b);
827	<	} catch (AssertionFailedError t) {
828	<	threadRecordFailure(t);
829	<	throw t;
827	>	} catch (AssertionError fail) {
828	>	threadRecordFailure(fail);
829	>	throw fail;
830		}
831		}
832
833		/**
834		* Just like assertNull(x), but additionally recording (using
835	<	* threadRecordFailure) any AssertionFailedError thrown, so that
836	<	* the current testcase will fail.
835	>	* threadRecordFailure) any AssertionError thrown, so that the
836	>	* current testcase will fail.
837		*/
838		public void threadAssertNull(Object x) {
839		try {
840		assertNull(x);
841	<	} catch (AssertionFailedError t) {
842	<	threadRecordFailure(t);
843	<	throw t;
841	>	} catch (AssertionError fail) {
842	>	threadRecordFailure(fail);
843	>	throw fail;
844		}
845		}
846
847		/**
848		* Just like assertEquals(x, y), but additionally recording (using
849	<	* threadRecordFailure) any AssertionFailedError thrown, so that
850	<	* the current testcase will fail.
849	>	* threadRecordFailure) any AssertionError thrown, so that the
850	>	* current testcase will fail.
851		*/
852		public void threadAssertEquals(long x, long y) {
853		try {
854		assertEquals(x, y);
855	<	} catch (AssertionFailedError t) {
856	<	threadRecordFailure(t);
857	<	throw t;
855	>	} catch (AssertionError fail) {
856	>	threadRecordFailure(fail);
857	>	throw fail;
858		}
859		}
860
861		/**
862		* Just like assertEquals(x, y), but additionally recording (using
863	<	* threadRecordFailure) any AssertionFailedError thrown, so that
864	<	* the current testcase will fail.
863	>	* threadRecordFailure) any AssertionError thrown, so that the
864	>	* current testcase will fail.
865		*/
866		public void threadAssertEquals(Object x, Object y) {
867		try {
868		assertEquals(x, y);
869	<	} catch (AssertionFailedError fail) {
869	>	} catch (AssertionError fail) {
870		threadRecordFailure(fail);
871		throw fail;
872		} catch (Throwable fail) {
#	Line 768 | Line 876 | public class JSR166TestCase extends Test
876
877		/**
878		* Just like assertSame(x, y), but additionally recording (using
879	<	* threadRecordFailure) any AssertionFailedError thrown, so that
880	<	* the current testcase will fail.
879	>	* threadRecordFailure) any AssertionError thrown, so that the
880	>	* current testcase will fail.
881		*/
882		public void threadAssertSame(Object x, Object y) {
883		try {
884		assertSame(x, y);
885	<	} catch (AssertionFailedError fail) {
885	>	} catch (AssertionError fail) {
886		threadRecordFailure(fail);
887		throw fail;
888		}
#	Line 796 | Line 904 | public class JSR166TestCase extends Test
904
905		/**
906		* Records the given exception using {@link #threadRecordFailure},
907	<	* then rethrows the exception, wrapping it in an
908	<	* AssertionFailedError if necessary.
907	>	* then rethrows the exception, wrapping it in an AssertionError
908	>	* if necessary.
909		*/
910		public void threadUnexpectedException(Throwable t) {
911		threadRecordFailure(t);
#	Line 806 | Line 914 | public class JSR166TestCase extends Test
914		throw (RuntimeException) t;
915		else if (t instanceof Error)
916		throw (Error) t;
917	<	else {
918	<	AssertionFailedError afe =
811	<	new AssertionFailedError("unexpected exception: " + t);
812	<	afe.initCause(t);
813	<	throw afe;
814	<	}
917	>	else
918	>	throw new AssertionError("unexpected exception: " + t, t);
919		}
920
921		/**
#	Line 879 | Line 983 | public class JSR166TestCase extends Test
983		}};
984		}
985
986	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
987	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
988	+	}
989	+
990	+	Runnable releaser(final AtomicBoolean flag) {
991	+	return new Runnable() { public void run() { flag.set(true); }};
992	+	}
993	+
994		/**
995		* Waits out termination of a thread pool or fails doing so.
996		*/
#	Line 902 | Line 1014 | public class JSR166TestCase extends Test
1014		}
1015		}
1016
1017	<	/** Like Runnable, but with the freedom to throw anything */
1017	>	/**
1018	>	* Like Runnable, but with the freedom to throw anything.
1019	>	* junit folks had the same idea:
1020	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1021	>	*/
1022		interface Action { public void run() throws Throwable; }
1023
1024		/**
#	Line 933 | Line 1049 | public class JSR166TestCase extends Test
1049		* Uninteresting threads are filtered out.
1050		*/
1051		static void dumpTestThreads() {
1052	+	SecurityManager sm = System.getSecurityManager();
1053	+	if (sm != null) {
1054	+	try {
1055	+	System.setSecurityManager(null);
1056	+	} catch (SecurityException giveUp) {
1057	+	return;
1058	+	}
1059	+	}
1060	+
1061		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1062		System.err.println("------ stacktrace dump start ------");
1063		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1064	<	String name = info.getThreadName();
1064	>	final String name = info.getThreadName();
1065	>	String lockName;
1066		if ("Signal Dispatcher".equals(name))
1067		continue;
1068		if ("Reference Handler".equals(name)
1069	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1069	>	&& (lockName = info.getLockName()) != null
1070	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1071		continue;
1072		if ("Finalizer".equals(name)
1073	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1073	>	&& (lockName = info.getLockName()) != null
1074	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1075		continue;
1076		if ("checkForWedgedTest".equals(name))
1077		continue;
1078		System.err.print(info);
1079		}
1080		System.err.println("------ stacktrace dump end ------");
953	–	}
1081
1082	<	/**
956	<	* Checks that thread does not terminate within the default
957	<	* millisecond delay of {@code timeoutMillis()}.
958	<	*/
959	<	void assertThreadStaysAlive(Thread thread) {
960	<	assertThreadStaysAlive(thread, timeoutMillis());
1082	>	if (sm != null) System.setSecurityManager(sm);
1083		}
1084
1085		/**
1086	<	* Checks that thread does not terminate within the given millisecond delay.
1086	>	* Checks that thread eventually enters the expected blocked thread state.
1087		*/
1088	<	void assertThreadStaysAlive(Thread thread, long millis) {
1089	<	try {
1090	<	// No need to optimize the failing case via Thread.join.
1091	<	delay(millis);
1092	<	assertTrue(thread.isAlive());
1093	<	} catch (InterruptedException fail) {
1094	<	threadFail("Unexpected InterruptedException");
1095	<	}
1096	<	}
1097	<
1098	<	/**
1099	<	* Checks that the threads do not terminate within the default
1100	<	* millisecond delay of {@code timeoutMillis()}.
979	<	*/
980	<	void assertThreadsStayAlive(Thread... threads) {
981	<	assertThreadsStayAlive(timeoutMillis(), threads);
982	<	}
983	<
984	<	/**
985	<	* Checks that the threads do not terminate within the given millisecond delay.
986	<	*/
987	<	void assertThreadsStayAlive(long millis, Thread... threads) {
988	<	try {
989	<	// No need to optimize the failing case via Thread.join.
990	<	delay(millis);
991	<	for (Thread thread : threads)
992	<	assertTrue(thread.isAlive());
993	<	} catch (InterruptedException fail) {
994	<	threadFail("Unexpected InterruptedException");
1088	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1089	>	// always sleep at least 1 ms, with high probability avoiding
1090	>	// transitory states
1091	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1092	>	try { delay(1); }
1093	>	catch (InterruptedException fail) {
1094	>	throw new AssertionError("Unexpected InterruptedException", fail);
1095	>	}
1096	>	Thread.State s = thread.getState();
1097	>	if (s == expected)
1098	>	return;
1099	>	else if (s == Thread.State.TERMINATED)
1100	>	fail("Unexpected thread termination");
1101		}
1102	+	fail("timed out waiting for thread to enter thread state " + expected);
1103		}
1104
1105		/**
#	Line 1033 | Line 1140 | public class JSR166TestCase extends Test
1140		}
1141
1142		/**
1143	+	* The maximum number of consecutive spurious wakeups we should
1144	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1145	+	*/
1146	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1147	+
1148	+	/**
1149		* The number of elements to place in collections, arrays, etc.
1150		*/
1151		public static final int SIZE = 20;
#	Line 1136 | Line 1249 | public class JSR166TestCase extends Test
1249		}
1250		public void refresh() {}
1251		public String toString() {
1252	<	List<Permission> ps = new ArrayList<Permission>();
1252	>	List<Permission> ps = new ArrayList<>();
1253		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1254		ps.add(e.nextElement());
1255		return "AdjustablePolicy with permissions " + ps;
#	Line 1164 | Line 1277 | public class JSR166TestCase extends Test
1277
1278		/**
1279		* Sleeps until the given time has elapsed.
1280	<	* Throws AssertionFailedError if interrupted.
1280	>	* Throws AssertionError if interrupted.
1281		*/
1282	<	void sleep(long millis) {
1282	>	static void sleep(long millis) {
1283		try {
1284		delay(millis);
1285		} catch (InterruptedException fail) {
1286	<	AssertionFailedError afe =
1174	<	new AssertionFailedError("Unexpected InterruptedException");
1175	<	afe.initCause(fail);
1176	<	throw afe;
1286	>	throw new AssertionError("Unexpected InterruptedException", fail);
1287		}
1288		}
1289
#	Line 1182 | Line 1292 | public class JSR166TestCase extends Test
1292		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1293		*/
1294		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1295	<	long startTime = System.nanoTime();
1295	>	long startTime = 0L;
1296		for (;;) {
1297		Thread.State s = thread.getState();
1298		if (s == Thread.State.BLOCKED ||
#	Line 1191 | Line 1301 | public class JSR166TestCase extends Test
1301		return;
1302		else if (s == Thread.State.TERMINATED)
1303		fail("Unexpected thread termination");
1304	+	else if (startTime == 0L)
1305	+	startTime = System.nanoTime();
1306		else if (millisElapsedSince(startTime) > timeoutMillis) {
1307		threadAssertTrue(thread.isAlive());
1308	<	return;
1308	>	fail("timed out waiting for thread to enter wait state");
1309		}
1310		Thread.yield();
1311		}
1312		}
1313
1314		/**
1315	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1316	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1315	>	* Spin-waits up to the specified number of milliseconds for the given
1316	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1317	>	* and additionally satisfy the given condition.
1318	>	*/
1319	>	void waitForThreadToEnterWaitState(
1320	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1321	>	long startTime = 0L;
1322	>	for (;;) {
1323	>	Thread.State s = thread.getState();
1324	>	if (s == Thread.State.BLOCKED ||
1325	>	s == Thread.State.WAITING ||
1326	>	s == Thread.State.TIMED_WAITING) {
1327	>	try {
1328	>	if (waitingForGodot.call())
1329	>	return;
1330	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1331	>	}
1332	>	else if (s == Thread.State.TERMINATED)
1333	>	fail("Unexpected thread termination");
1334	>	else if (startTime == 0L)
1335	>	startTime = System.nanoTime();
1336	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1337	>	threadAssertTrue(thread.isAlive());
1338	>	fail("timed out waiting for thread to enter wait state");
1339	>	}
1340	>	Thread.yield();
1341	>	}
1342	>	}
1343	>
1344	>	/**
1345	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1346	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1347		*/
1348		void waitForThreadToEnterWaitState(Thread thread) {
1349		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1350		}
1351
1352		/**
1353	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1354	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1355	+	* and additionally satisfy the given condition.
1356	+	*/
1357	+	void waitForThreadToEnterWaitState(
1358	+	Thread thread, Callable<Boolean> waitingForGodot) {
1359	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1360	+	}
1361	+
1362	+	/**
1363		* Returns the number of milliseconds since time given by
1364		* startNanoTime, which must have been previously returned from a
1365		* call to {@link System#nanoTime()}.
#	Line 1222 | Line 1374 | public class JSR166TestCase extends Test
1374		//             r.run();
1375		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1376		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1377	<	//             throw new AssertionFailedError("did not return promptly");
1377	>	//             throw new AssertionError("did not return promptly");
1378		//     }
1379
1380		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1239 | Line 1391 | public class JSR166TestCase extends Test
1391		assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1392		} catch (Throwable fail) { threadUnexpectedException(fail); }
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 1297 | Line 1449 | public class JSR166TestCase extends Test
1449		}
1450		}
1451
1300	–	public abstract class RunnableShouldThrow implements Runnable {
1301	–	protected abstract void realRun() throws Throwable;
1302	–
1303	–	final Class<?> exceptionClass;
1304	–
1305	–	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1306	–	this.exceptionClass = exceptionClass;
1307	–	}
1308	–
1309	–	public final void run() {
1310	–	try {
1311	–	realRun();
1312	–	threadShouldThrow(exceptionClass.getSimpleName());
1313	–	} catch (Throwable t) {
1314	–	if (! exceptionClass.isInstance(t))
1315	–	threadUnexpectedException(t);
1316	–	}
1317	–	}
1318	–	}
1319	–
1452		public abstract class ThreadShouldThrow extends Thread {
1453		protected abstract void realRun() throws Throwable;
1454
#	Line 1435 | Line 1567 | public class JSR166TestCase extends Test
1567		return new LatchAwaiter(latch);
1568		}
1569
1570	<	public void await(CountDownLatch latch) {
1570	>	public void await(CountDownLatch latch, long timeoutMillis) {
1571		try {
1572	<	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1572	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1573		fail("timed out waiting for CountDownLatch for "
1574	<	+ (LONG_DELAY_MS/1000) + " sec");
1574	>	+ (timeoutMillis/1000) + " sec");
1575		} catch (Throwable fail) {
1576		threadUnexpectedException(fail);
1577		}
1578		}
1579
1580	+	public void await(CountDownLatch latch) {
1581	+	await(latch, LONG_DELAY_MS);
1582	+	}
1583	+
1584		public void await(Semaphore semaphore) {
1585		try {
1586		if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
#	Line 1455 | Line 1591 | public class JSR166TestCase extends Test
1591		}
1592		}
1593
1594	+	public void await(CyclicBarrier barrier) {
1595	+	try {
1596	+	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1597	+	} catch (Throwable fail) {
1598	+	threadUnexpectedException(fail);
1599	+	}
1600	+	}
1601	+
1602		//     /**
1603		//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1604		//      */
#	Line 1469 | Line 1613 | public class JSR166TestCase extends Test
1613		//         long startTime = System.nanoTime();
1614		//         while (!flag.get()) {
1615		//             if (millisElapsedSince(startTime) > timeoutMillis)
1616	<	//                 throw new AssertionFailedError("timed out");
1616	>	//                 throw new AssertionError("timed out");
1617		//             Thread.yield();
1618		//         }
1619		//     }
#	Line 1478 | Line 1622 | public class JSR166TestCase extends Test
1622		public String call() { throw new NullPointerException(); }
1623		}
1624
1481	–	public static class CallableOne implements Callable<Integer> {
1482	–	public Integer call() { return one; }
1483	–	}
1484	–
1485	–	public class ShortRunnable extends CheckedRunnable {
1486	–	protected void realRun() throws Throwable {
1487	–	delay(SHORT_DELAY_MS);
1488	–	}
1489	–	}
1490	–
1491	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1492	–	protected void realRun() throws InterruptedException {
1493	–	delay(SHORT_DELAY_MS);
1494	–	}
1495	–	}
1496	–
1497	–	public class SmallRunnable extends CheckedRunnable {
1498	–	protected void realRun() throws Throwable {
1499	–	delay(SMALL_DELAY_MS);
1500	–	}
1501	–	}
1502	–
1625		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1626		protected void realRun() {
1627		try {
#	Line 1508 | Line 1630 | public class JSR166TestCase extends Test
1630		}
1631		}
1632
1511	–	public class SmallCallable extends CheckedCallable {
1512	–	protected Object realCall() throws InterruptedException {
1513	–	delay(SMALL_DELAY_MS);
1514	–	return Boolean.TRUE;
1515	–	}
1516	–	}
1517	–
1518	–	public class MediumRunnable extends CheckedRunnable {
1519	–	protected void realRun() throws Throwable {
1520	–	delay(MEDIUM_DELAY_MS);
1521	–	}
1522	–	}
1523	–
1524	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1525	–	protected void realRun() throws InterruptedException {
1526	–	delay(MEDIUM_DELAY_MS);
1527	–	}
1528	–	}
1529	–
1633		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1634		return new CheckedRunnable() {
1635		protected void realRun() {
#	Line 1536 | Line 1639 | public class JSR166TestCase extends Test
1639		}};
1640		}
1641
1539	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1540	–	protected void realRun() {
1541	–	try {
1542	–	delay(MEDIUM_DELAY_MS);
1543	–	} catch (InterruptedException ok) {}
1544	–	}
1545	–	}
1546	–
1547	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1548	–	protected void realRun() {
1549	–	try {
1550	–	delay(LONG_DELAY_MS);
1551	–	} catch (InterruptedException ok) {}
1552	–	}
1553	–	}
1554	–
1642		/**
1643		* For use as ThreadFactory in constructors
1644		*/
#	Line 1565 | Line 1652 | public class JSR166TestCase extends Test
1652		boolean isDone();
1653		}
1654
1568	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1569	–	return new TrackedRunnable() {
1570	–	private volatile boolean done = false;
1571	–	public boolean isDone() { return done; }
1572	–	public void run() {
1573	–	try {
1574	–	delay(timeoutMillis);
1575	–	done = true;
1576	–	} catch (InterruptedException ok) {}
1577	–	}
1578	–	};
1579	–	}
1580	–
1581	–	public static class TrackedShortRunnable implements Runnable {
1582	–	public volatile boolean done = false;
1583	–	public void run() {
1584	–	try {
1585	–	delay(SHORT_DELAY_MS);
1586	–	done = true;
1587	–	} catch (InterruptedException ok) {}
1588	–	}
1589	–	}
1590	–
1591	–	public static class TrackedSmallRunnable implements Runnable {
1592	–	public volatile boolean done = false;
1593	–	public void run() {
1594	–	try {
1595	–	delay(SMALL_DELAY_MS);
1596	–	done = true;
1597	–	} catch (InterruptedException ok) {}
1598	–	}
1599	–	}
1600	–
1601	–	public static class TrackedMediumRunnable implements Runnable {
1602	–	public volatile boolean done = false;
1603	–	public void run() {
1604	–	try {
1605	–	delay(MEDIUM_DELAY_MS);
1606	–	done = true;
1607	–	} catch (InterruptedException ok) {}
1608	–	}
1609	–	}
1610	–
1611	–	public static class TrackedLongRunnable implements Runnable {
1612	–	public volatile boolean done = false;
1613	–	public void run() {
1614	–	try {
1615	–	delay(LONG_DELAY_MS);
1616	–	done = true;
1617	–	} catch (InterruptedException ok) {}
1618	–	}
1619	–	}
1620	–
1655		public static class TrackedNoOpRunnable implements Runnable {
1656		public volatile boolean done = false;
1657		public void run() {
#	Line 1625 | Line 1659 | public class JSR166TestCase extends Test
1659		}
1660		}
1661
1628	–	public static class TrackedCallable implements Callable {
1629	–	public volatile boolean done = false;
1630	–	public Object call() {
1631	–	try {
1632	–	delay(SMALL_DELAY_MS);
1633	–	done = true;
1634	–	} catch (InterruptedException ok) {}
1635	–	return Boolean.TRUE;
1636	–	}
1637	–	}
1638	–
1662		/**
1663		* Analog of CheckedRunnable for RecursiveAction
1664		*/
#	Line 1677 | Line 1700 | public class JSR166TestCase extends Test
1700
1701		/**
1702		* A CyclicBarrier that uses timed await and fails with
1703	<	* AssertionFailedErrors instead of throwing checked exceptions.
1703	>	* AssertionErrors instead of throwing checked exceptions.
1704		*/
1705	<	public class CheckedBarrier extends CyclicBarrier {
1705	>	public static class CheckedBarrier extends CyclicBarrier {
1706		public CheckedBarrier(int parties) { super(parties); }
1707
1708		public int await() {
1709		try {
1710		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1711		} catch (TimeoutException timedOut) {
1712	<	throw new AssertionFailedError("timed out");
1712	>	throw new AssertionError("timed out");
1713		} catch (Exception fail) {
1714	<	AssertionFailedError afe =
1692	<	new AssertionFailedError("Unexpected exception: " + fail);
1693	<	afe.initCause(fail);
1694	<	throw afe;
1714	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1715		}
1716		}
1717		}
#	Line 1702 | Line 1722 | public class JSR166TestCase extends Test
1722		assertEquals(0, q.size());
1723		assertNull(q.peek());
1724		assertNull(q.poll());
1725	<	assertNull(q.poll(0, MILLISECONDS));
1725	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1726		assertEquals(q.toString(), "[]");
1727		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1728		assertFalse(q.iterator().hasNext());
#	Line 1743 | Line 1763 | public class JSR166TestCase extends Test
1763		}
1764		}
1765
1766	+	void assertImmutable(final Object o) {
1767	+	if (o instanceof Collection) {
1768	+	assertThrows(
1769	+	UnsupportedOperationException.class,
1770	+	new Runnable() { public void run() {
1771	+	((Collection) o).add(null);}});
1772	+	}
1773	+	}
1774	+
1775		@SuppressWarnings("unchecked")
1776		<T> T serialClone(T o) {
1777		try {
1778		ObjectInputStream ois = new ObjectInputStream
1779		(new ByteArrayInputStream(serialBytes(o)));
1780		T clone = (T) ois.readObject();
1781	+	if (o == clone) assertImmutable(o);
1782		assertSame(o.getClass(), clone.getClass());
1783		return clone;
1784		} catch (Throwable fail) {
#	Line 1757 | Line 1787 | public class JSR166TestCase extends Test
1787		}
1788		}
1789
1790	+	/**
1791	+	* A version of serialClone that leaves error handling (for
1792	+	* e.g. NotSerializableException) up to the caller.
1793	+	*/
1794	+	@SuppressWarnings("unchecked")
1795	+	<T> T serialClonePossiblyFailing(T o)
1796	+	throws ReflectiveOperationException, java.io.IOException {
1797	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1798	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1799	+	oos.writeObject(o);
1800	+	oos.flush();
1801	+	oos.close();
1802	+	ObjectInputStream ois = new ObjectInputStream
1803	+	(new ByteArrayInputStream(bos.toByteArray()));
1804	+	T clone = (T) ois.readObject();
1805	+	if (o == clone) assertImmutable(o);
1806	+	assertSame(o.getClass(), clone.getClass());
1807	+	return clone;
1808	+	}
1809	+
1810	+	/**
1811	+	* If o implements Cloneable and has a public clone method,
1812	+	* returns a clone of o, else null.
1813	+	*/
1814	+	@SuppressWarnings("unchecked")
1815	+	<T> T cloneableClone(T o) {
1816	+	if (!(o instanceof Cloneable)) return null;
1817	+	final T clone;
1818	+	try {
1819	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1820	+	} catch (NoSuchMethodException ok) {
1821	+	return null;
1822	+	} catch (ReflectiveOperationException unexpected) {
1823	+	throw new Error(unexpected);
1824	+	}
1825	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1826	+	assertSame(o.getClass(), clone.getClass());
1827	+	return clone;
1828	+	}
1829	+
1830		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1831		Runnable... throwingActions) {
1832		for (Runnable throwingAction : throwingActions) {
#	Line 1764 | Line 1834 | public class JSR166TestCase extends Test
1834		try { throwingAction.run(); }
1835		catch (Throwable t) {
1836		threw = true;
1837	<	if (!expectedExceptionClass.isInstance(t)) {
1838	<	AssertionFailedError afe =
1839	<	new AssertionFailedError
1840	<	("Expected " + expectedExceptionClass.getName() +
1841	<	", got " + t.getClass().getName());
1772	<	afe.initCause(t);
1773	<	threadUnexpectedException(afe);
1774	<	}
1837	>	if (!expectedExceptionClass.isInstance(t))
1838	>	throw new AssertionError(
1839	>	"Expected " + expectedExceptionClass.getName() +
1840	>	", got " + t.getClass().getName(),
1841	>	t);
1842		}
1843		if (!threw)
1844		shouldThrow(expectedExceptionClass.getName());
#	Line 1785 | Line 1852 | public class JSR166TestCase extends Test
1852		} catch (NoSuchElementException success) {}
1853		assertFalse(it.hasNext());
1854		}
1855	+
1856	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1857	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1858	+	}
1859	+
1860	+	public Runnable runnableThrowing(final RuntimeException ex) {
1861	+	return new Runnable() { public void run() { throw ex; }};
1862	+	}
1863	+
1864	+	/** A reusable thread pool to be shared by tests. */
1865	+	static final ExecutorService cachedThreadPool =
1866	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1867	+	1000L, MILLISECONDS,
1868	+	new SynchronousQueue<Runnable>());
1869	+
1870	+	static <T> void shuffle(T[] array) {
1871	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1872	+	}
1873	+
1874	+	/**
1875	+	* Returns the same String as would be returned by {@link
1876	+	* Object#toString}, whether or not the given object's class
1877	+	* overrides toString().
1878	+	*
1879	+	* @see System#identityHashCode
1880	+	*/
1881	+	static String identityString(Object x) {
1882	+	return x.getClass().getName()
1883	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1884	+	}
1885	+
1886	+	// --- Shared assertions for Executor tests ---
1887	+
1888	+	/**
1889	+	* Returns maximum number of tasks that can be submitted to given
1890	+	* pool (with bounded queue) before saturation (when submission
1891	+	* throws RejectedExecutionException).
1892	+	*/
1893	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1894	+	BlockingQueue<Runnable> q = pool.getQueue();
1895	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1896	+	}
1897	+
1898	+	@SuppressWarnings("FutureReturnValueIgnored")
1899	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1900	+	try {
1901	+	e.execute((Runnable) null);
1902	+	shouldThrow();
1903	+	} catch (NullPointerException success) {}
1904	+
1905	+	if (! (e instanceof ExecutorService)) return;
1906	+	ExecutorService es = (ExecutorService) e;
1907	+	try {
1908	+	es.submit((Runnable) null);
1909	+	shouldThrow();
1910	+	} catch (NullPointerException success) {}
1911	+	try {
1912	+	es.submit((Runnable) null, Boolean.TRUE);
1913	+	shouldThrow();
1914	+	} catch (NullPointerException success) {}
1915	+	try {
1916	+	es.submit((Callable) null);
1917	+	shouldThrow();
1918	+	} catch (NullPointerException success) {}
1919	+
1920	+	if (! (e instanceof ScheduledExecutorService)) return;
1921	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1922	+	try {
1923	+	ses.schedule((Runnable) null,
1924	+	randomTimeout(), randomTimeUnit());
1925	+	shouldThrow();
1926	+	} catch (NullPointerException success) {}
1927	+	try {
1928	+	ses.schedule((Callable) null,
1929	+	randomTimeout(), randomTimeUnit());
1930	+	shouldThrow();
1931	+	} catch (NullPointerException success) {}
1932	+	try {
1933	+	ses.scheduleAtFixedRate((Runnable) null,
1934	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1935	+	shouldThrow();
1936	+	} catch (NullPointerException success) {}
1937	+	try {
1938	+	ses.scheduleWithFixedDelay((Runnable) null,
1939	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1940	+	shouldThrow();
1941	+	} catch (NullPointerException success) {}
1942	+	}
1943	+
1944	+	void setRejectedExecutionHandler(
1945	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1946	+	p.setRejectedExecutionHandler(handler);
1947	+	assertSame(handler, p.getRejectedExecutionHandler());
1948	+	}
1949	+
1950	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1951	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1952	+	final long savedTaskCount = p.getTaskCount();
1953	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1954	+	final int savedQueueSize = p.getQueue().size();
1955	+	final boolean stock = (p.getClass().getClassLoader() == null);
1956	+
1957	+	Runnable r = () -> {};
1958	+	Callable<Boolean> c = () -> Boolean.TRUE;
1959	+
1960	+	class Recorder implements RejectedExecutionHandler {
1961	+	public volatile Runnable r = null;
1962	+	public volatile ThreadPoolExecutor p = null;
1963	+	public void reset() { r = null; p = null; }
1964	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1965	+	assertNull(this.r);
1966	+	assertNull(this.p);
1967	+	this.r = r;
1968	+	this.p = p;
1969	+	}
1970	+	}
1971	+
1972	+	// check custom handler is invoked exactly once per task
1973	+	Recorder recorder = new Recorder();
1974	+	setRejectedExecutionHandler(p, recorder);
1975	+	for (int i = 2; i--> 0; ) {
1976	+	recorder.reset();
1977	+	p.execute(r);
1978	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1979	+	assertSame(r, recorder.r);
1980	+	assertSame(p, recorder.p);
1981	+
1982	+	recorder.reset();
1983	+	assertFalse(p.submit(r).isDone());
1984	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1985	+	assertSame(p, recorder.p);
1986	+
1987	+	recorder.reset();
1988	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
1989	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1990	+	assertSame(p, recorder.p);
1991	+
1992	+	recorder.reset();
1993	+	assertFalse(p.submit(c).isDone());
1994	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
1995	+	assertSame(p, recorder.p);
1996	+
1997	+	if (p instanceof ScheduledExecutorService) {
1998	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
1999	+	ScheduledFuture<?> future;
2000	+
2001	+	recorder.reset();
2002	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2003	+	assertFalse(future.isDone());
2004	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2005	+	assertSame(p, recorder.p);
2006	+
2007	+	recorder.reset();
2008	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2009	+	assertFalse(future.isDone());
2010	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2011	+	assertSame(p, recorder.p);
2012	+
2013	+	recorder.reset();
2014	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2015	+	assertFalse(future.isDone());
2016	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2017	+	assertSame(p, recorder.p);
2018	+
2019	+	recorder.reset();
2020	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2021	+	assertFalse(future.isDone());
2022	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2023	+	assertSame(p, recorder.p);
2024	+	}
2025	+	}
2026	+
2027	+	// Checking our custom handler above should be sufficient, but
2028	+	// we add some integration tests of standard handlers.
2029	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2030	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2031	+
2032	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2033	+	try {
2034	+	p.execute(setThread);
2035	+	shouldThrow();
2036	+	} catch (RejectedExecutionException success) {}
2037	+	assertNull(thread.get());
2038	+
2039	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2040	+	p.execute(setThread);
2041	+	assertNull(thread.get());
2042	+
2043	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2044	+	p.execute(setThread);
2045	+	if (p.isShutdown())
2046	+	assertNull(thread.get());
2047	+	else
2048	+	assertSame(Thread.currentThread(), thread.get());
2049	+
2050	+	setRejectedExecutionHandler(p, savedHandler);
2051	+
2052	+	// check that pool was not perturbed by handlers
2053	+	assertEquals(savedTaskCount, p.getTaskCount());
2054	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2055	+	assertEquals(savedQueueSize, p.getQueue().size());
2056	+	}
2057	+
2058	+	void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
2059	+	assertEquals(x, y);
2060	+	assertEquals(y, x);
2061	+	assertEquals(x.isEmpty(), y.isEmpty());
2062	+	assertEquals(x.size(), y.size());
2063	+	if (x instanceof List) {
2064	+	assertEquals(x.toString(), y.toString());
2065	+	}
2066	+	if (x instanceof List || x instanceof Set) {
2067	+	assertEquals(x.hashCode(), y.hashCode());
2068	+	}
2069	+	if (x instanceof List || x instanceof Deque) {
2070	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2071	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2072	+	y.toArray(new Object[0])));
2073	+	}
2074	+	}
2075	+
2076	+	/**
2077	+	* A weaker form of assertCollectionsEquals which does not insist
2078	+	* that the two collections satisfy Object#equals(Object), since
2079	+	* they may use identity semantics as Deques do.
2080	+	*/
2081	+	void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
2082	+	if (x instanceof List || x instanceof Set)
2083	+	assertCollectionsEquals(x, y);
2084	+	else {
2085	+	assertEquals(x.isEmpty(), y.isEmpty());
2086	+	assertEquals(x.size(), y.size());
2087	+	assertEquals(new HashSet(x), new HashSet(y));
2088	+	if (x instanceof Deque) {
2089	+	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
2090	+	assertTrue(Arrays.equals(x.toArray(new Object[0]),
2091	+	y.toArray(new Object[0])));
2092	+	}
2093	+	}
2094	+	}
2095		}

Diff Legend

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