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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.177 by jsr166, Mon Oct 12 23:52:44 2015 UTC vs.
Revision 1.240 by jsr166, Tue Jan 23 22:56:37 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.Enumeration;
70		import java.util.Iterator;
#	Line 42 | Line 76 | import java.util.concurrent.Callable;
76		import java.util.concurrent.CountDownLatch;
77		import java.util.concurrent.CyclicBarrier;
78		import java.util.concurrent.ExecutionException;
79	+	import java.util.concurrent.Executor;
80		import java.util.concurrent.Executors;
81		import java.util.concurrent.ExecutorService;
82		import java.util.concurrent.ForkJoinPool;
83		import java.util.concurrent.Future;
84	+	import java.util.concurrent.FutureTask;
85		import java.util.concurrent.RecursiveAction;
86		import java.util.concurrent.RecursiveTask;
87	+	import java.util.concurrent.RejectedExecutionException;
88		import java.util.concurrent.RejectedExecutionHandler;
89		import java.util.concurrent.Semaphore;
90	+	import java.util.concurrent.ScheduledExecutorService;
91	+	import java.util.concurrent.ScheduledFuture;
92	+	import java.util.concurrent.SynchronousQueue;
93		import java.util.concurrent.ThreadFactory;
94	+	import java.util.concurrent.ThreadLocalRandom;
95		import java.util.concurrent.ThreadPoolExecutor;
96	+	import java.util.concurrent.TimeUnit;
97		import java.util.concurrent.TimeoutException;
98	+	import java.util.concurrent.atomic.AtomicBoolean;
99		import java.util.concurrent.atomic.AtomicReference;
57	–	import java.util.regex.Matcher;
100		import java.util.regex.Pattern;
101
60	–	import junit.framework.AssertionFailedError;
102		import junit.framework.Test;
103		import junit.framework.TestCase;
104		import junit.framework.TestResult;
#	Line 112 | Line 153 | import junit.framework.TestSuite;
153		* methods as there are exceptions the method can throw. Sometimes
154		* there are multiple tests per JSR166 method when the different
155		* "normal" behaviors differ significantly. And sometimes testcases
156	<	* cover multiple methods when they cannot be tested in
116	<	* isolation.
156	>	* cover multiple methods when they cannot be tested in isolation.
157		*
158		* <li>The documentation style for testcases is to provide as javadoc
159		* a simple sentence or two describing the property that the testcase
#	Line 176 | Line 216 | public class JSR166TestCase extends Test
216		private static final int suiteRuns =
217		Integer.getInteger("jsr166.suiteRuns", 1);
218
219	+	/**
220	+	* Returns the value of the system property, or NaN if not defined.
221	+	*/
222	+	private static float systemPropertyValue(String name) {
223	+	String floatString = System.getProperty(name);
224	+	if (floatString == null)
225	+	return Float.NaN;
226	+	try {
227	+	return Float.parseFloat(floatString);
228	+	} catch (NumberFormatException ex) {
229	+	throw new IllegalArgumentException(
230	+	String.format("Bad float value in system property %s=%s",
231	+	name, floatString));
232	+	}
233	+	}
234	+
235	+	/**
236	+	* The scaling factor to apply to standard delays used in tests.
237	+	* May be initialized from any of:
238	+	* - the "jsr166.delay.factor" system property
239	+	* - the "test.timeout.factor" system property (as used by jtreg)
240	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
241	+	* - hard-coded fuzz factor when using a known slowpoke VM
242	+	*/
243	+	private static final float delayFactor = delayFactor();
244	+
245	+	private static float delayFactor() {
246	+	float x;
247	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
248	+	return x;
249	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
250	+	return x;
251	+	String prop = System.getProperty("java.vm.version");
252	+	if (prop != null && prop.matches(".*debug.*"))
253	+	return 4.0f; // How much slower is fastdebug than product?!
254	+	return 1.0f;
255	+	}
256	+
257		public JSR166TestCase() { super(); }
258		public JSR166TestCase(String name) { super(name); }
259
#	Line 227 | Line 305 | public class JSR166TestCase extends Test
305
306		//     public static String cpuModel() {
307		//         try {
308	<	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
308	>	//             java.util.regex.Matcher matcher
309	>	//               = Pattern.compile("model name\\s*: (.*)")
310		//                 .matcher(new String(
311	<	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
311	>	//                     java.nio.file.Files.readAllBytes(
312	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
313		//             matcher.find();
314		//             return matcher.group(1);
315		//         } catch (Exception ex) { return null; }
#	Line 273 | Line 353 | public class JSR166TestCase extends Test
353		main(suite(), args);
354		}
355
356	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
357	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
358	+	long runTime;
359	+	public void startTest(Test test) {}
360	+	protected void printHeader(long runTime) {
361	+	this.runTime = runTime; // defer printing for later
362	+	}
363	+	protected void printFooter(TestResult result) {
364	+	if (result.wasSuccessful()) {
365	+	getWriter().println("OK (" + result.runCount() + " tests)"
366	+	+ "  Time: " + elapsedTimeAsString(runTime));
367	+	} else {
368	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
369	+	super.printFooter(result);
370	+	}
371	+	}
372	+	}
373	+
374	+	/**
375	+	* Returns a TestRunner that doesn't bother with unnecessary
376	+	* fluff, like printing a "." for each test case.
377	+	*/
378	+	static junit.textui.TestRunner newPithyTestRunner() {
379	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
380	+	runner.setPrinter(new PithyResultPrinter(System.out));
381	+	return runner;
382	+	}
383	+
384		/**
385		* Runs all unit tests in the given test suite.
386		* Actual behavior influenced by jsr166.* system properties.
#	Line 284 | Line 392 | public class JSR166TestCase extends Test
392		System.setSecurityManager(new SecurityManager());
393		}
394		for (int i = 0; i < suiteRuns; i++) {
395	<	TestResult result = junit.textui.TestRunner.run(suite);
395	>	TestResult result = newPithyTestRunner().doRun(suite);
396		if (!result.wasSuccessful())
397		System.exit(1);
398		System.gc();
#	Line 336 | Line 444 | public class JSR166TestCase extends Test
444		}
445		}
446
447	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
448	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
449	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
450	<	public static boolean atLeastJava9() {
451	<	return JAVA_CLASS_VERSION >= 53.0
344	<	// As of 2015-09, java9 still uses 52.0 class file version
345	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
346	<	}
347	<	public static boolean atLeastJava10() {
348	<	return JAVA_CLASS_VERSION >= 54.0
349	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
350	<	}
447	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
448	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
449	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
450	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
451	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
452
453		/**
454		* Collects all JSR166 unit tests as one suite.
#	Line 368 | Line 469 | public class JSR166TestCase extends Test
469		AbstractQueuedLongSynchronizerTest.suite(),
470		ArrayBlockingQueueTest.suite(),
471		ArrayDequeTest.suite(),
472	+	ArrayListTest.suite(),
473		AtomicBooleanTest.suite(),
474		AtomicIntegerArrayTest.suite(),
475		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 390 | Line 492 | public class JSR166TestCase extends Test
492		CopyOnWriteArrayListTest.suite(),
493		CopyOnWriteArraySetTest.suite(),
494		CountDownLatchTest.suite(),
495	+	CountedCompleterTest.suite(),
496		CyclicBarrierTest.suite(),
497		DelayQueueTest.suite(),
498		EntryTest.suite(),
#	Line 418 | Line 521 | public class JSR166TestCase extends Test
521		TreeMapTest.suite(),
522		TreeSetTest.suite(),
523		TreeSubMapTest.suite(),
524	<	TreeSubSetTest.suite());
524	>	TreeSubSetTest.suite(),
525	>	VectorTest.suite());
526
527		// Java8+ test classes
528		if (atLeastJava8()) {
529		String[] java8TestClassNames = {
530	+	"ArrayDeque8Test",
531		"Atomic8Test",
532		"CompletableFutureTest",
533		"ConcurrentHashMap8Test",
534	<	"CountedCompleterTest",
534	>	"CountedCompleter8Test",
535		"DoubleAccumulatorTest",
536		"DoubleAdderTest",
537		"ForkJoinPool8Test",
538		"ForkJoinTask8Test",
539	+	"HashMapTest",
540	+	"LinkedBlockingDeque8Test",
541	+	"LinkedBlockingQueue8Test",
542		"LongAccumulatorTest",
543		"LongAdderTest",
544		"SplittableRandomTest",
545		"StampedLockTest",
546		"SubmissionPublisherTest",
547		"ThreadLocalRandom8Test",
548	+	"TimeUnit8Test",
549		};
550		addNamedTestClasses(suite, java8TestClassNames);
551		}
#	Line 444 | Line 553 | public class JSR166TestCase extends Test
553		// Java9+ test classes
554		if (atLeastJava9()) {
555		String[] java9TestClassNames = {
556	<	// Currently empty, but expecting varhandle tests
556	>	"AtomicBoolean9Test",
557	>	"AtomicInteger9Test",
558	>	"AtomicIntegerArray9Test",
559	>	"AtomicLong9Test",
560	>	"AtomicLongArray9Test",
561	>	"AtomicReference9Test",
562	>	"AtomicReferenceArray9Test",
563	>	"ExecutorCompletionService9Test",
564	>	"ForkJoinPool9Test",
565		};
566		addNamedTestClasses(suite, java9TestClassNames);
567		}
#	Line 455 | Line 572 | public class JSR166TestCase extends Test
572		/** Returns list of junit-style test method names in given class. */
573		public static ArrayList<String> testMethodNames(Class<?> testClass) {
574		Method[] methods = testClass.getDeclaredMethods();
575	<	ArrayList<String> names = new ArrayList<String>(methods.length);
575	>	ArrayList<String> names = new ArrayList<>(methods.length);
576		for (Method method : methods) {
577		if (method.getName().startsWith("test")
578		&& Modifier.isPublic(method.getModifiers())
#	Line 520 | Line 637 | public class JSR166TestCase extends Test
637		public static long MEDIUM_DELAY_MS;
638		public static long LONG_DELAY_MS;
639
640	+	private static final long RANDOM_TIMEOUT;
641	+	private static final long RANDOM_EXPIRED_TIMEOUT;
642	+	private static final TimeUnit RANDOM_TIMEUNIT;
643	+	static {
644	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
645	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
646	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
647	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
648	+	TimeUnit[] timeUnits = TimeUnit.values();
649	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
650	+	}
651	+
652	+	/**
653	+	* Returns a timeout for use when any value at all will do.
654	+	*/
655	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
656	+
657	+	/**
658	+	* Returns a timeout that means "no waiting", i.e. not positive.
659	+	*/
660	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
661	+
662	+	/**
663	+	* Returns a random non-null TimeUnit.
664	+	*/
665	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
666	+
667		/**
668	<	* Returns the shortest timed delay. This could
669	<	* be reimplemented to use for example a Property.
668	>	* Returns the shortest timed delay. This can be scaled up for
669	>	* slow machines using the jsr166.delay.factor system property,
670	>	* or via jtreg's -timeoutFactor: flag.
671	>	* http://openjdk.java.net/jtreg/command-help.html
672		*/
673		protected long getShortDelay() {
674	<	return 50;
674	>	return (long) (50 * delayFactor);
675		}
676
677		/**
#	Line 538 | Line 684 | public class JSR166TestCase extends Test
684		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
685		}
686
687	+	private static final long TIMEOUT_DELAY_MS
688	+	= (long) (12.0 * Math.cbrt(delayFactor));
689	+
690		/**
691	<	* Returns a timeout in milliseconds to be used in tests that
692	<	* verify that operations block or time out.
691	>	* Returns a timeout in milliseconds to be used in tests that verify
692	>	* that operations block or time out.  We want this to be longer
693	>	* than the OS scheduling quantum, but not too long, so don't scale
694	>	* linearly with delayFactor; we use "crazy" cube root instead.
695		*/
696	<	long timeoutMillis() {
697	<	return SHORT_DELAY_MS / 4;
696	>	static long timeoutMillis() {
697	>	return TIMEOUT_DELAY_MS;
698		}
699
700		/**
#	Line 559 | Line 710 | public class JSR166TestCase extends Test
710		* The first exception encountered if any threadAssertXXX method fails.
711		*/
712		private final AtomicReference<Throwable> threadFailure
713	<	= new AtomicReference<Throwable>(null);
713	>	= new AtomicReference<>(null);
714
715		/**
716		* Records an exception so that it can be rethrown later in the test
#	Line 581 | Line 732 | public class JSR166TestCase extends Test
732		String msg = toString() + ": " + String.format(format, args);
733		System.err.println(msg);
734		dumpTestThreads();
735	<	throw new AssertionFailedError(msg);
735	>	throw new AssertionError(msg);
736		}
737
738		/**
#	Line 602 | Line 753 | public class JSR166TestCase extends Test
753		throw (RuntimeException) t;
754		else if (t instanceof Exception)
755		throw (Exception) t;
756	<	else {
757	<	AssertionFailedError afe =
607	<	new AssertionFailedError(t.toString());
608	<	afe.initCause(t);
609	<	throw afe;
610	<	}
756	>	else
757	>	throw new AssertionError(t.toString(), t);
758		}
759
760		if (Thread.interrupted())
#	Line 641 | Line 788 | public class JSR166TestCase extends Test
788
789		/**
790		* Just like fail(reason), but additionally recording (using
791	<	* threadRecordFailure) any AssertionFailedError thrown, so that
792	<	* the current testcase will fail.
791	>	* threadRecordFailure) any AssertionError thrown, so that the
792	>	* current testcase will fail.
793		*/
794		public void threadFail(String reason) {
795		try {
796		fail(reason);
797	<	} catch (AssertionFailedError t) {
798	<	threadRecordFailure(t);
799	<	throw t;
797	>	} catch (AssertionError fail) {
798	>	threadRecordFailure(fail);
799	>	throw fail;
800		}
801		}
802
803		/**
804		* Just like assertTrue(b), but additionally recording (using
805	<	* threadRecordFailure) any AssertionFailedError thrown, so that
806	<	* the current testcase will fail.
805	>	* threadRecordFailure) any AssertionError thrown, so that the
806	>	* current testcase will fail.
807		*/
808		public void threadAssertTrue(boolean b) {
809		try {
810		assertTrue(b);
811	<	} catch (AssertionFailedError t) {
812	<	threadRecordFailure(t);
813	<	throw t;
811	>	} catch (AssertionError fail) {
812	>	threadRecordFailure(fail);
813	>	throw fail;
814		}
815		}
816
817		/**
818		* Just like assertFalse(b), but additionally recording (using
819	<	* threadRecordFailure) any AssertionFailedError thrown, so that
820	<	* the current testcase will fail.
819	>	* threadRecordFailure) any AssertionError thrown, so that the
820	>	* current testcase will fail.
821		*/
822		public void threadAssertFalse(boolean b) {
823		try {
824		assertFalse(b);
825	<	} catch (AssertionFailedError t) {
826	<	threadRecordFailure(t);
827	<	throw t;
825	>	} catch (AssertionError fail) {
826	>	threadRecordFailure(fail);
827	>	throw fail;
828		}
829		}
830
831		/**
832		* Just like assertNull(x), but additionally recording (using
833	<	* threadRecordFailure) any AssertionFailedError thrown, so that
834	<	* the current testcase will fail.
833	>	* threadRecordFailure) any AssertionError thrown, so that the
834	>	* current testcase will fail.
835		*/
836		public void threadAssertNull(Object x) {
837		try {
838		assertNull(x);
839	<	} catch (AssertionFailedError t) {
840	<	threadRecordFailure(t);
841	<	throw t;
839	>	} catch (AssertionError fail) {
840	>	threadRecordFailure(fail);
841	>	throw fail;
842		}
843		}
844
845		/**
846		* Just like assertEquals(x, y), but additionally recording (using
847	<	* threadRecordFailure) any AssertionFailedError thrown, so that
848	<	* the current testcase will fail.
847	>	* threadRecordFailure) any AssertionError thrown, so that the
848	>	* current testcase will fail.
849		*/
850		public void threadAssertEquals(long x, long y) {
851		try {
852		assertEquals(x, y);
853	<	} catch (AssertionFailedError t) {
854	<	threadRecordFailure(t);
855	<	throw t;
853	>	} catch (AssertionError fail) {
854	>	threadRecordFailure(fail);
855	>	throw fail;
856		}
857		}
858
859		/**
860		* Just like assertEquals(x, y), but additionally recording (using
861	<	* threadRecordFailure) any AssertionFailedError thrown, so that
862	<	* the current testcase will fail.
861	>	* threadRecordFailure) any AssertionError thrown, so that the
862	>	* current testcase will fail.
863		*/
864		public void threadAssertEquals(Object x, Object y) {
865		try {
866		assertEquals(x, y);
867	<	} catch (AssertionFailedError fail) {
867	>	} catch (AssertionError fail) {
868		threadRecordFailure(fail);
869		throw fail;
870		} catch (Throwable fail) {
#	Line 727 | Line 874 | public class JSR166TestCase extends Test
874
875		/**
876		* Just like assertSame(x, y), but additionally recording (using
877	<	* threadRecordFailure) any AssertionFailedError thrown, so that
878	<	* the current testcase will fail.
877	>	* threadRecordFailure) any AssertionError thrown, so that the
878	>	* current testcase will fail.
879		*/
880		public void threadAssertSame(Object x, Object y) {
881		try {
882		assertSame(x, y);
883	<	} catch (AssertionFailedError fail) {
883	>	} catch (AssertionError fail) {
884		threadRecordFailure(fail);
885		throw fail;
886		}
#	Line 755 | Line 902 | public class JSR166TestCase extends Test
902
903		/**
904		* Records the given exception using {@link #threadRecordFailure},
905	<	* then rethrows the exception, wrapping it in an
906	<	* AssertionFailedError if necessary.
905	>	* then rethrows the exception, wrapping it in an AssertionError
906	>	* if necessary.
907		*/
908		public void threadUnexpectedException(Throwable t) {
909		threadRecordFailure(t);
#	Line 765 | Line 912 | public class JSR166TestCase extends Test
912		throw (RuntimeException) t;
913		else if (t instanceof Error)
914		throw (Error) t;
915	<	else {
916	<	AssertionFailedError afe =
770	<	new AssertionFailedError("unexpected exception: " + t);
771	<	afe.initCause(t);
772	<	throw afe;
773	<	}
915	>	else
916	>	throw new AssertionError("unexpected exception: " + t, t);
917		}
918
919		/**
#	Line 838 | Line 981 | public class JSR166TestCase extends Test
981		}};
982		}
983
984	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
985	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
986	+	}
987	+
988	+	Runnable releaser(final AtomicBoolean flag) {
989	+	return new Runnable() { public void run() { flag.set(true); }};
990	+	}
991	+
992		/**
993		* Waits out termination of a thread pool or fails doing so.
994		*/
#	Line 861 | Line 1012 | public class JSR166TestCase extends Test
1012		}
1013		}
1014
1015	<	/** Like Runnable, but with the freedom to throw anything */
1015	>	/**
1016	>	* Like Runnable, but with the freedom to throw anything.
1017	>	* junit folks had the same idea:
1018	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1019	>	*/
1020		interface Action { public void run() throws Throwable; }
1021
1022		/**
#	Line 892 | Line 1047 | public class JSR166TestCase extends Test
1047		* Uninteresting threads are filtered out.
1048		*/
1049		static void dumpTestThreads() {
1050	+	SecurityManager sm = System.getSecurityManager();
1051	+	if (sm != null) {
1052	+	try {
1053	+	System.setSecurityManager(null);
1054	+	} catch (SecurityException giveUp) {
1055	+	return;
1056	+	}
1057	+	}
1058	+
1059		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1060		System.err.println("------ stacktrace dump start ------");
1061		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1062	<	String name = info.getThreadName();
1062	>	final String name = info.getThreadName();
1063	>	String lockName;
1064		if ("Signal Dispatcher".equals(name))
1065		continue;
1066		if ("Reference Handler".equals(name)
1067	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1067	>	&& (lockName = info.getLockName()) != null
1068	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1069		continue;
1070		if ("Finalizer".equals(name)
1071	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1071	>	&& (lockName = info.getLockName()) != null
1072	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1073		continue;
1074		if ("checkForWedgedTest".equals(name))
1075		continue;
1076		System.err.print(info);
1077		}
1078		System.err.println("------ stacktrace dump end ------");
912	–	}
1079
1080	<	/**
915	<	* Checks that thread does not terminate within the default
916	<	* millisecond delay of {@code timeoutMillis()}.
917	<	*/
918	<	void assertThreadStaysAlive(Thread thread) {
919	<	assertThreadStaysAlive(thread, timeoutMillis());
1080	>	if (sm != null) System.setSecurityManager(sm);
1081		}
1082
1083		/**
1084	<	* Checks that thread does not terminate within the given millisecond delay.
1084	>	* Checks that thread eventually enters the expected blocked thread state.
1085		*/
1086	<	void assertThreadStaysAlive(Thread thread, long millis) {
1087	<	try {
1088	<	// No need to optimize the failing case via Thread.join.
1089	<	delay(millis);
1090	<	assertTrue(thread.isAlive());
1091	<	} catch (InterruptedException fail) {
1092	<	threadFail("Unexpected InterruptedException");
1093	<	}
1094	<	}
1095	<
1096	<	/**
1097	<	* Checks that the threads do not terminate within the default
1098	<	* millisecond delay of {@code timeoutMillis()}.
938	<	*/
939	<	void assertThreadsStayAlive(Thread... threads) {
940	<	assertThreadsStayAlive(timeoutMillis(), threads);
941	<	}
942	<
943	<	/**
944	<	* Checks that the threads do not terminate within the given millisecond delay.
945	<	*/
946	<	void assertThreadsStayAlive(long millis, Thread... threads) {
947	<	try {
948	<	// No need to optimize the failing case via Thread.join.
949	<	delay(millis);
950	<	for (Thread thread : threads)
951	<	assertTrue(thread.isAlive());
952	<	} catch (InterruptedException fail) {
953	<	threadFail("Unexpected InterruptedException");
1086	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1087	>	// always sleep at least 1 ms, with high probability avoiding
1088	>	// transitory states
1089	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1090	>	try { delay(1); }
1091	>	catch (InterruptedException fail) {
1092	>	throw new AssertionError("Unexpected InterruptedException", fail);
1093	>	}
1094	>	Thread.State s = thread.getState();
1095	>	if (s == expected)
1096	>	return;
1097	>	else if (s == Thread.State.TERMINATED)
1098	>	fail("Unexpected thread termination");
1099		}
1100	+	fail("timed out waiting for thread to enter thread state " + expected);
1101		}
1102
1103		/**
#	Line 992 | Line 1138 | public class JSR166TestCase extends Test
1138		}
1139
1140		/**
1141	+	* The maximum number of consecutive spurious wakeups we should
1142	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1143	+	*/
1144	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1145	+
1146	+	/**
1147		* The number of elements to place in collections, arrays, etc.
1148		*/
1149		public static final int SIZE = 20;
#	Line 1095 | Line 1247 | public class JSR166TestCase extends Test
1247		}
1248		public void refresh() {}
1249		public String toString() {
1250	<	List<Permission> ps = new ArrayList<Permission>();
1250	>	List<Permission> ps = new ArrayList<>();
1251		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1252		ps.add(e.nextElement());
1253		return "AdjustablePolicy with permissions " + ps;
#	Line 1123 | Line 1275 | public class JSR166TestCase extends Test
1275
1276		/**
1277		* Sleeps until the given time has elapsed.
1278	<	* Throws AssertionFailedError if interrupted.
1278	>	* Throws AssertionError if interrupted.
1279		*/
1280	<	void sleep(long millis) {
1280	>	static void sleep(long millis) {
1281		try {
1282		delay(millis);
1283		} catch (InterruptedException fail) {
1284	<	AssertionFailedError afe =
1133	<	new AssertionFailedError("Unexpected InterruptedException");
1134	<	afe.initCause(fail);
1135	<	throw afe;
1284	>	throw new AssertionError("Unexpected InterruptedException", fail);
1285		}
1286		}
1287
#	Line 1141 | Line 1290 | public class JSR166TestCase extends Test
1290		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1291		*/
1292		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1293	<	long startTime = System.nanoTime();
1293	>	long startTime = 0L;
1294		for (;;) {
1295		Thread.State s = thread.getState();
1296		if (s == Thread.State.BLOCKED ||
#	Line 1150 | Line 1299 | public class JSR166TestCase extends Test
1299		return;
1300		else if (s == Thread.State.TERMINATED)
1301		fail("Unexpected thread termination");
1302	+	else if (startTime == 0L)
1303	+	startTime = System.nanoTime();
1304		else if (millisElapsedSince(startTime) > timeoutMillis) {
1305		threadAssertTrue(thread.isAlive());
1306	<	return;
1306	>	fail("timed out waiting for thread to enter wait state");
1307		}
1308		Thread.yield();
1309		}
1310		}
1311
1312		/**
1313	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1314	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1313	>	* Spin-waits up to the specified number of milliseconds for the given
1314	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1315	>	* and additionally satisfy the given condition.
1316	>	*/
1317	>	void waitForThreadToEnterWaitState(
1318	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1319	>	long startTime = 0L;
1320	>	for (;;) {
1321	>	Thread.State s = thread.getState();
1322	>	if (s == Thread.State.BLOCKED ||
1323	>	s == Thread.State.WAITING ||
1324	>	s == Thread.State.TIMED_WAITING) {
1325	>	try {
1326	>	if (waitingForGodot.call())
1327	>	return;
1328	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1329	>	}
1330	>	else if (s == Thread.State.TERMINATED)
1331	>	fail("Unexpected thread termination");
1332	>	else if (startTime == 0L)
1333	>	startTime = System.nanoTime();
1334	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1335	>	threadAssertTrue(thread.isAlive());
1336	>	fail("timed out waiting for thread to enter wait state");
1337	>	}
1338	>	Thread.yield();
1339	>	}
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);
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(
1356	+	Thread thread, Callable<Boolean> waitingForGodot) {
1357	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1358	+	}
1359	+
1360	+	/**
1361		* Returns the number of milliseconds since time given by
1362		* startNanoTime, which must have been previously returned from a
1363		* call to {@link System#nanoTime()}.
#	Line 1181 | 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 1198 | Line 1389 | public class JSR166TestCase extends Test
1389		assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1390		} catch (Throwable fail) { threadUnexpectedException(fail); }
1391		if (millisElapsedSince(startTime) > timeoutMillis/2)
1392	<	throw new AssertionFailedError("timed get did not return promptly");
1392	>	throw new AssertionError("timed get did not return promptly");
1393		}
1394
1395		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1394 | Line 1585 | public class JSR166TestCase extends Test
1585		return new LatchAwaiter(latch);
1586		}
1587
1588	<	public void await(CountDownLatch latch) {
1588	>	public void await(CountDownLatch latch, long timeoutMillis) {
1589		try {
1590	<	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1590	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1591		fail("timed out waiting for CountDownLatch for "
1592	<	+ (LONG_DELAY_MS/1000) + " sec");
1592	>	+ (timeoutMillis/1000) + " sec");
1593		} catch (Throwable fail) {
1594		threadUnexpectedException(fail);
1595		}
1596		}
1597
1598	+	public void await(CountDownLatch latch) {
1599	+	await(latch, LONG_DELAY_MS);
1600	+	}
1601	+
1602		public void await(Semaphore semaphore) {
1603		try {
1604		if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
#	Line 1414 | Line 1609 | public class JSR166TestCase extends Test
1609		}
1610		}
1611
1612	+	public void await(CyclicBarrier barrier) {
1613	+	try {
1614	+	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1615	+	} catch (Throwable fail) {
1616	+	threadUnexpectedException(fail);
1617	+	}
1618	+	}
1619	+
1620		//     /**
1621		//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1622		//      */
#	Line 1428 | Line 1631 | public class JSR166TestCase extends Test
1631		//         long startTime = System.nanoTime();
1632		//         while (!flag.get()) {
1633		//             if (millisElapsedSince(startTime) > timeoutMillis)
1634	<	//                 throw new AssertionFailedError("timed out");
1634	>	//                 throw new AssertionError("timed out");
1635		//             Thread.yield();
1636		//         }
1637		//     }
#	Line 1437 | Line 1640 | public class JSR166TestCase extends Test
1640		public String call() { throw new NullPointerException(); }
1641		}
1642
1440	–	public static class CallableOne implements Callable<Integer> {
1441	–	public Integer call() { return one; }
1442	–	}
1443	–
1444	–	public class ShortRunnable extends CheckedRunnable {
1445	–	protected void realRun() throws Throwable {
1446	–	delay(SHORT_DELAY_MS);
1447	–	}
1448	–	}
1449	–
1450	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1451	–	protected void realRun() throws InterruptedException {
1452	–	delay(SHORT_DELAY_MS);
1453	–	}
1454	–	}
1455	–
1456	–	public class SmallRunnable extends CheckedRunnable {
1457	–	protected void realRun() throws Throwable {
1458	–	delay(SMALL_DELAY_MS);
1459	–	}
1460	–	}
1461	–
1643		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1644		protected void realRun() {
1645		try {
#	Line 1467 | Line 1648 | public class JSR166TestCase extends Test
1648		}
1649		}
1650
1470	–	public class SmallCallable extends CheckedCallable {
1471	–	protected Object realCall() throws InterruptedException {
1472	–	delay(SMALL_DELAY_MS);
1473	–	return Boolean.TRUE;
1474	–	}
1475	–	}
1476	–
1477	–	public class MediumRunnable extends CheckedRunnable {
1478	–	protected void realRun() throws Throwable {
1479	–	delay(MEDIUM_DELAY_MS);
1480	–	}
1481	–	}
1482	–
1483	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1484	–	protected void realRun() throws InterruptedException {
1485	–	delay(MEDIUM_DELAY_MS);
1486	–	}
1487	–	}
1488	–
1651		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1652		return new CheckedRunnable() {
1653		protected void realRun() {
#	Line 1495 | Line 1657 | public class JSR166TestCase extends Test
1657		}};
1658		}
1659
1498	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1499	–	protected void realRun() {
1500	–	try {
1501	–	delay(MEDIUM_DELAY_MS);
1502	–	} catch (InterruptedException ok) {}
1503	–	}
1504	–	}
1505	–
1506	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1507	–	protected void realRun() {
1508	–	try {
1509	–	delay(LONG_DELAY_MS);
1510	–	} catch (InterruptedException ok) {}
1511	–	}
1512	–	}
1513	–
1660		/**
1661		* For use as ThreadFactory in constructors
1662		*/
#	Line 1524 | Line 1670 | public class JSR166TestCase extends Test
1670		boolean isDone();
1671		}
1672
1527	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1528	–	return new TrackedRunnable() {
1529	–	private volatile boolean done = false;
1530	–	public boolean isDone() { return done; }
1531	–	public void run() {
1532	–	try {
1533	–	delay(timeoutMillis);
1534	–	done = true;
1535	–	} catch (InterruptedException ok) {}
1536	–	}
1537	–	};
1538	–	}
1539	–
1540	–	public static class TrackedShortRunnable implements Runnable {
1541	–	public volatile boolean done = false;
1542	–	public void run() {
1543	–	try {
1544	–	delay(SHORT_DELAY_MS);
1545	–	done = true;
1546	–	} catch (InterruptedException ok) {}
1547	–	}
1548	–	}
1549	–
1550	–	public static class TrackedSmallRunnable implements Runnable {
1551	–	public volatile boolean done = false;
1552	–	public void run() {
1553	–	try {
1554	–	delay(SMALL_DELAY_MS);
1555	–	done = true;
1556	–	} catch (InterruptedException ok) {}
1557	–	}
1558	–	}
1559	–
1560	–	public static class TrackedMediumRunnable implements Runnable {
1561	–	public volatile boolean done = false;
1562	–	public void run() {
1563	–	try {
1564	–	delay(MEDIUM_DELAY_MS);
1565	–	done = true;
1566	–	} catch (InterruptedException ok) {}
1567	–	}
1568	–	}
1569	–
1570	–	public static class TrackedLongRunnable implements Runnable {
1571	–	public volatile boolean done = false;
1572	–	public void run() {
1573	–	try {
1574	–	delay(LONG_DELAY_MS);
1575	–	done = true;
1576	–	} catch (InterruptedException ok) {}
1577	–	}
1578	–	}
1579	–
1673		public static class TrackedNoOpRunnable implements Runnable {
1674		public volatile boolean done = false;
1675		public void run() {
#	Line 1584 | Line 1677 | public class JSR166TestCase extends Test
1677		}
1678		}
1679
1587	–	public static class TrackedCallable implements Callable {
1588	–	public volatile boolean done = false;
1589	–	public Object call() {
1590	–	try {
1591	–	delay(SMALL_DELAY_MS);
1592	–	done = true;
1593	–	} catch (InterruptedException ok) {}
1594	–	return Boolean.TRUE;
1595	–	}
1596	–	}
1597	–
1680		/**
1681		* Analog of CheckedRunnable for RecursiveAction
1682		*/
#	Line 1636 | Line 1718 | public class JSR166TestCase extends Test
1718
1719		/**
1720		* A CyclicBarrier that uses timed await and fails with
1721	<	* AssertionFailedErrors instead of throwing checked exceptions.
1721	>	* AssertionErrors instead of throwing checked exceptions.
1722		*/
1723	<	public class CheckedBarrier extends CyclicBarrier {
1723	>	public static class CheckedBarrier extends CyclicBarrier {
1724		public CheckedBarrier(int parties) { super(parties); }
1725
1726		public int await() {
1727		try {
1728		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1729		} catch (TimeoutException timedOut) {
1730	<	throw new AssertionFailedError("timed out");
1730	>	throw new AssertionError("timed out");
1731		} catch (Exception fail) {
1732	<	AssertionFailedError afe =
1651	<	new AssertionFailedError("Unexpected exception: " + fail);
1652	<	afe.initCause(fail);
1653	<	throw afe;
1732	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1733		}
1734		}
1735		}
#	Line 1661 | Line 1740 | public class JSR166TestCase extends Test
1740		assertEquals(0, q.size());
1741		assertNull(q.peek());
1742		assertNull(q.poll());
1743	<	assertNull(q.poll(0, MILLISECONDS));
1743	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1744		assertEquals(q.toString(), "[]");
1745		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1746		assertFalse(q.iterator().hasNext());
#	Line 1702 | Line 1781 | public class JSR166TestCase extends Test
1781		}
1782		}
1783
1784	+	void assertImmutable(final Object o) {
1785	+	if (o instanceof Collection) {
1786	+	assertThrows(
1787	+	UnsupportedOperationException.class,
1788	+	new Runnable() { public void run() {
1789	+	((Collection) o).add(null);}});
1790	+	}
1791	+	}
1792	+
1793		@SuppressWarnings("unchecked")
1794		<T> T serialClone(T o) {
1795		try {
1796		ObjectInputStream ois = new ObjectInputStream
1797		(new ByteArrayInputStream(serialBytes(o)));
1798		T clone = (T) ois.readObject();
1799	+	if (o == clone) assertImmutable(o);
1800		assertSame(o.getClass(), clone.getClass());
1801		return clone;
1802		} catch (Throwable fail) {
#	Line 1716 | Line 1805 | public class JSR166TestCase extends Test
1805		}
1806		}
1807
1808	+	/**
1809	+	* A version of serialClone that leaves error handling (for
1810	+	* e.g. NotSerializableException) up to the caller.
1811	+	*/
1812	+	@SuppressWarnings("unchecked")
1813	+	<T> T serialClonePossiblyFailing(T o)
1814	+	throws ReflectiveOperationException, java.io.IOException {
1815	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1816	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1817	+	oos.writeObject(o);
1818	+	oos.flush();
1819	+	oos.close();
1820	+	ObjectInputStream ois = new ObjectInputStream
1821	+	(new ByteArrayInputStream(bos.toByteArray()));
1822	+	T clone = (T) ois.readObject();
1823	+	if (o == clone) assertImmutable(o);
1824	+	assertSame(o.getClass(), clone.getClass());
1825	+	return clone;
1826	+	}
1827	+
1828	+	/**
1829	+	* If o implements Cloneable and has a public clone method,
1830	+	* returns a clone of o, else null.
1831	+	*/
1832	+	@SuppressWarnings("unchecked")
1833	+	<T> T cloneableClone(T o) {
1834	+	if (!(o instanceof Cloneable)) return null;
1835	+	final T clone;
1836	+	try {
1837	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1838	+	} catch (NoSuchMethodException ok) {
1839	+	return null;
1840	+	} catch (ReflectiveOperationException unexpected) {
1841	+	throw new Error(unexpected);
1842	+	}
1843	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1844	+	assertSame(o.getClass(), clone.getClass());
1845	+	return clone;
1846	+	}
1847	+
1848		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1849		Runnable... throwingActions) {
1850		for (Runnable throwingAction : throwingActions) {
#	Line 1723 | Line 1852 | public class JSR166TestCase extends Test
1852		try { throwingAction.run(); }
1853		catch (Throwable t) {
1854		threw = true;
1855	<	if (!expectedExceptionClass.isInstance(t)) {
1856	<	AssertionFailedError afe =
1857	<	new AssertionFailedError
1858	<	("Expected " + expectedExceptionClass.getName() +
1859	<	", got " + t.getClass().getName());
1731	<	afe.initCause(t);
1732	<	threadUnexpectedException(afe);
1733	<	}
1855	>	if (!expectedExceptionClass.isInstance(t))
1856	>	throw new AssertionError(
1857	>	"Expected " + expectedExceptionClass.getName() +
1858	>	", got " + t.getClass().getName(),
1859	>	t);
1860		}
1861		if (!threw)
1862		shouldThrow(expectedExceptionClass.getName());
#	Line 1744 | Line 1870 | public class JSR166TestCase extends Test
1870		} catch (NoSuchElementException success) {}
1871		assertFalse(it.hasNext());
1872		}
1873	+
1874	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1875	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1876	+	}
1877	+
1878	+	public Runnable runnableThrowing(final RuntimeException ex) {
1879	+	return new Runnable() { public void run() { throw ex; }};
1880	+	}
1881	+
1882	+	/** A reusable thread pool to be shared by tests. */
1883	+	static final ExecutorService cachedThreadPool =
1884	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1885	+	1000L, MILLISECONDS,
1886	+	new SynchronousQueue<Runnable>());
1887	+
1888	+	static <T> void shuffle(T[] array) {
1889	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1890	+	}
1891	+
1892	+	/**
1893	+	* Returns the same String as would be returned by {@link
1894	+	* Object#toString}, whether or not the given object's class
1895	+	* overrides toString().
1896	+	*
1897	+	* @see System#identityHashCode
1898	+	*/
1899	+	static String identityString(Object x) {
1900	+	return x.getClass().getName()
1901	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1902	+	}
1903	+
1904	+	// --- Shared assertions for Executor tests ---
1905	+
1906	+	/**
1907	+	* Returns maximum number of tasks that can be submitted to given
1908	+	* pool (with bounded queue) before saturation (when submission
1909	+	* throws RejectedExecutionException).
1910	+	*/
1911	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1912	+	BlockingQueue<Runnable> q = pool.getQueue();
1913	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1914	+	}
1915	+
1916	+	@SuppressWarnings("FutureReturnValueIgnored")
1917	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1918	+	try {
1919	+	e.execute((Runnable) null);
1920	+	shouldThrow();
1921	+	} catch (NullPointerException success) {}
1922	+
1923	+	if (! (e instanceof ExecutorService)) return;
1924	+	ExecutorService es = (ExecutorService) e;
1925	+	try {
1926	+	es.submit((Runnable) null);
1927	+	shouldThrow();
1928	+	} catch (NullPointerException success) {}
1929	+	try {
1930	+	es.submit((Runnable) null, Boolean.TRUE);
1931	+	shouldThrow();
1932	+	} catch (NullPointerException success) {}
1933	+	try {
1934	+	es.submit((Callable) null);
1935	+	shouldThrow();
1936	+	} catch (NullPointerException success) {}
1937	+
1938	+	if (! (e instanceof ScheduledExecutorService)) return;
1939	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1940	+	try {
1941	+	ses.schedule((Runnable) null,
1942	+	randomTimeout(), randomTimeUnit());
1943	+	shouldThrow();
1944	+	} catch (NullPointerException success) {}
1945	+	try {
1946	+	ses.schedule((Callable) null,
1947	+	randomTimeout(), randomTimeUnit());
1948	+	shouldThrow();
1949	+	} catch (NullPointerException success) {}
1950	+	try {
1951	+	ses.scheduleAtFixedRate((Runnable) null,
1952	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1953	+	shouldThrow();
1954	+	} catch (NullPointerException success) {}
1955	+	try {
1956	+	ses.scheduleWithFixedDelay((Runnable) null,
1957	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1958	+	shouldThrow();
1959	+	} catch (NullPointerException success) {}
1960	+	}
1961	+
1962	+	void setRejectedExecutionHandler(
1963	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1964	+	p.setRejectedExecutionHandler(handler);
1965	+	assertSame(handler, p.getRejectedExecutionHandler());
1966	+	}
1967	+
1968	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1969	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1970	+	final long savedTaskCount = p.getTaskCount();
1971	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1972	+	final int savedQueueSize = p.getQueue().size();
1973	+	final boolean stock = (p.getClass().getClassLoader() == null);
1974	+
1975	+	Runnable r = () -> {};
1976	+	Callable<Boolean> c = () -> Boolean.TRUE;
1977	+
1978	+	class Recorder implements RejectedExecutionHandler {
1979	+	public volatile Runnable r = null;
1980	+	public volatile ThreadPoolExecutor p = null;
1981	+	public void reset() { r = null; p = null; }
1982	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1983	+	assertNull(this.r);
1984	+	assertNull(this.p);
1985	+	this.r = r;
1986	+	this.p = p;
1987	+	}
1988	+	}
1989	+
1990	+	// check custom handler is invoked exactly once per task
1991	+	Recorder recorder = new Recorder();
1992	+	setRejectedExecutionHandler(p, recorder);
1993	+	for (int i = 2; i--> 0; ) {
1994	+	recorder.reset();
1995	+	p.execute(r);
1996	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1997	+	assertSame(r, recorder.r);
1998	+	assertSame(p, recorder.p);
1999	+
2000	+	recorder.reset();
2001	+	assertFalse(p.submit(r).isDone());
2002	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2003	+	assertSame(p, recorder.p);
2004	+
2005	+	recorder.reset();
2006	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2007	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2008	+	assertSame(p, recorder.p);
2009	+
2010	+	recorder.reset();
2011	+	assertFalse(p.submit(c).isDone());
2012	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2013	+	assertSame(p, recorder.p);
2014	+
2015	+	if (p instanceof ScheduledExecutorService) {
2016	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2017	+	ScheduledFuture<?> future;
2018	+
2019	+	recorder.reset();
2020	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2021	+	assertFalse(future.isDone());
2022	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2023	+	assertSame(p, recorder.p);
2024	+
2025	+	recorder.reset();
2026	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2027	+	assertFalse(future.isDone());
2028	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2029	+	assertSame(p, recorder.p);
2030	+
2031	+	recorder.reset();
2032	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2033	+	assertFalse(future.isDone());
2034	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2035	+	assertSame(p, recorder.p);
2036	+
2037	+	recorder.reset();
2038	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2039	+	assertFalse(future.isDone());
2040	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2041	+	assertSame(p, recorder.p);
2042	+	}
2043	+	}
2044	+
2045	+	// Checking our custom handler above should be sufficient, but
2046	+	// we add some integration tests of standard handlers.
2047	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2048	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2049	+
2050	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2051	+	try {
2052	+	p.execute(setThread);
2053	+	shouldThrow();
2054	+	} catch (RejectedExecutionException success) {}
2055	+	assertNull(thread.get());
2056	+
2057	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2058	+	p.execute(setThread);
2059	+	assertNull(thread.get());
2060	+
2061	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2062	+	p.execute(setThread);
2063	+	if (p.isShutdown())
2064	+	assertNull(thread.get());
2065	+	else
2066	+	assertSame(Thread.currentThread(), thread.get());
2067	+
2068	+	setRejectedExecutionHandler(p, savedHandler);
2069	+
2070	+	// check that pool was not perturbed by handlers
2071	+	assertEquals(savedTaskCount, p.getTaskCount());
2072	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2073	+	assertEquals(savedQueueSize, p.getQueue().size());
2074	+	}
2075		}

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