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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.230 by jsr166, Mon May 15 16:21:07 2017 UTC vs.
Revision 1.241 by jsr166, Sun Jan 28 16:20:42 2018 UTC

#	Line 76 | 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;
100		import java.util.regex.Pattern;
101
96	–	import junit.framework.AssertionFailedError;
102		import junit.framework.Test;
103		import junit.framework.TestCase;
104		import junit.framework.TestResult;
#	Line 413 | Line 418 | public class JSR166TestCase extends Test
418		for (String testClassName : testClassNames) {
419		try {
420		Class<?> testClass = Class.forName(testClassName);
421	<	Method m = testClass.getDeclaredMethod("suite",
417	<	new Class<?>[0]);
421	>	Method m = testClass.getDeclaredMethod("suite");
422		suite.addTest(newTestSuite((Test)m.invoke(null)));
423	<	} catch (Exception e) {
424	<	throw new Error("Missing test class", e);
423	>	} catch (ReflectiveOperationException e) {
424	>	throw new AssertionError("Missing test class", e);
425		}
426		}
427		}
#	Line 439 | Line 443 | public class JSR166TestCase extends Test
443		}
444		}
445
446	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
447	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
448	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
449	<	public static boolean atLeastJava9() {
450	<	return JAVA_CLASS_VERSION >= 53.0
447	<	// As of 2015-09, java9 still uses 52.0 class file version
448	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
449	<	}
450	<	public static boolean atLeastJava10() {
451	<	return JAVA_CLASS_VERSION >= 54.0
452	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
453	<	}
446	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
447	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
448	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
449	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
450	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
451
452		/**
453		* Collects all JSR166 unit tests as one suite.
#	Line 538 | Line 535 | public class JSR166TestCase extends Test
535		"DoubleAdderTest",
536		"ForkJoinPool8Test",
537		"ForkJoinTask8Test",
538	+	"HashMapTest",
539		"LinkedBlockingDeque8Test",
540		"LinkedBlockingQueue8Test",
541		"LongAccumulatorTest",
#	Line 600 | Line 598 | public class JSR166TestCase extends Test
598		for (String methodName : testMethodNames(testClass))
599		suite.addTest((Test) c.newInstance(data, methodName));
600		return suite;
601	<	} catch (Exception e) {
602	<	throw new Error(e);
601	>	} catch (ReflectiveOperationException e) {
602	>	throw new AssertionError(e);
603		}
604		}
605
#	Line 617 | Line 615 | public class JSR166TestCase extends Test
615		if (atLeastJava8()) {
616		String name = testClass.getName();
617		String name8 = name.replaceAll("Test$", "8Test");
618	<	if (name.equals(name8)) throw new Error(name);
618	>	if (name.equals(name8)) throw new AssertionError(name);
619		try {
620		return (Test)
621		Class.forName(name8)
622	<	.getMethod("testSuite", new Class[] { dataClass })
622	>	.getMethod("testSuite", dataClass)
623		.invoke(null, data);
624	<	} catch (Exception e) {
625	<	throw new Error(e);
624	>	} catch (ReflectiveOperationException e) {
625	>	throw new AssertionError(e);
626		}
627		} else {
628		return new TestSuite();
#	Line 638 | Line 636 | public class JSR166TestCase extends Test
636		public static long MEDIUM_DELAY_MS;
637		public static long LONG_DELAY_MS;
638
639	+	private static final long RANDOM_TIMEOUT;
640	+	private static final long RANDOM_EXPIRED_TIMEOUT;
641	+	private static final TimeUnit RANDOM_TIMEUNIT;
642	+	static {
643	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
644	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
645	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
646	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
647	+	TimeUnit[] timeUnits = TimeUnit.values();
648	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
649	+	}
650	+
651	+	/**
652	+	* Returns a timeout for use when any value at all will do.
653	+	*/
654	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
655	+
656	+	/**
657	+	* Returns a timeout that means "no waiting", i.e. not positive.
658	+	*/
659	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
660	+
661	+	/**
662	+	* Returns a random non-null TimeUnit.
663	+	*/
664	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
665	+
666		/**
667		* Returns the shortest timed delay. This can be scaled up for
668		* slow machines using the jsr166.delay.factor system property,
#	Line 706 | Line 731 | public class JSR166TestCase extends Test
731		String msg = toString() + ": " + String.format(format, args);
732		System.err.println(msg);
733		dumpTestThreads();
734	<	throw new AssertionFailedError(msg);
734	>	throw new AssertionError(msg);
735		}
736
737		/**
#	Line 727 | Line 752 | public class JSR166TestCase extends Test
752		throw (RuntimeException) t;
753		else if (t instanceof Exception)
754		throw (Exception) t;
755	<	else {
756	<	AssertionFailedError afe =
732	<	new AssertionFailedError(t.toString());
733	<	afe.initCause(t);
734	<	throw afe;
735	<	}
755	>	else
756	>	throw new AssertionError(t.toString(), t);
757		}
758
759		if (Thread.interrupted())
#	Line 766 | Line 787 | public class JSR166TestCase extends Test
787
788		/**
789		* Just like fail(reason), but additionally recording (using
790	<	* threadRecordFailure) any AssertionFailedError thrown, so that
791	<	* the current testcase will fail.
790	>	* threadRecordFailure) any AssertionError thrown, so that the
791	>	* current testcase will fail.
792		*/
793		public void threadFail(String reason) {
794		try {
795		fail(reason);
796	<	} catch (AssertionFailedError t) {
797	<	threadRecordFailure(t);
798	<	throw t;
796	>	} catch (AssertionError fail) {
797	>	threadRecordFailure(fail);
798	>	throw fail;
799		}
800		}
801
802		/**
803		* Just like assertTrue(b), but additionally recording (using
804	<	* threadRecordFailure) any AssertionFailedError thrown, so that
805	<	* the current testcase will fail.
804	>	* threadRecordFailure) any AssertionError thrown, so that the
805	>	* current testcase will fail.
806		*/
807		public void threadAssertTrue(boolean b) {
808		try {
809		assertTrue(b);
810	<	} catch (AssertionFailedError t) {
811	<	threadRecordFailure(t);
812	<	throw t;
810	>	} catch (AssertionError fail) {
811	>	threadRecordFailure(fail);
812	>	throw fail;
813		}
814		}
815
816		/**
817		* Just like assertFalse(b), but additionally recording (using
818	<	* threadRecordFailure) any AssertionFailedError thrown, so that
819	<	* the current testcase will fail.
818	>	* threadRecordFailure) any AssertionError thrown, so that the
819	>	* current testcase will fail.
820		*/
821		public void threadAssertFalse(boolean b) {
822		try {
823		assertFalse(b);
824	<	} catch (AssertionFailedError t) {
825	<	threadRecordFailure(t);
826	<	throw t;
824	>	} catch (AssertionError fail) {
825	>	threadRecordFailure(fail);
826	>	throw fail;
827		}
828		}
829
830		/**
831		* Just like assertNull(x), but additionally recording (using
832	<	* threadRecordFailure) any AssertionFailedError thrown, so that
833	<	* the current testcase will fail.
832	>	* threadRecordFailure) any AssertionError thrown, so that the
833	>	* current testcase will fail.
834		*/
835		public void threadAssertNull(Object x) {
836		try {
837		assertNull(x);
838	<	} catch (AssertionFailedError t) {
839	<	threadRecordFailure(t);
840	<	throw t;
838	>	} catch (AssertionError fail) {
839	>	threadRecordFailure(fail);
840	>	throw fail;
841		}
842		}
843
844		/**
845		* Just like assertEquals(x, y), but additionally recording (using
846	<	* threadRecordFailure) any AssertionFailedError thrown, so that
847	<	* the current testcase will fail.
846	>	* threadRecordFailure) any AssertionError thrown, so that the
847	>	* current testcase will fail.
848		*/
849		public void threadAssertEquals(long x, long y) {
850		try {
851		assertEquals(x, y);
852	<	} catch (AssertionFailedError t) {
853	<	threadRecordFailure(t);
854	<	throw t;
852	>	} catch (AssertionError fail) {
853	>	threadRecordFailure(fail);
854	>	throw fail;
855		}
856		}
857
858		/**
859		* Just like assertEquals(x, y), but additionally recording (using
860	<	* threadRecordFailure) any AssertionFailedError thrown, so that
861	<	* the current testcase will fail.
860	>	* threadRecordFailure) any AssertionError thrown, so that the
861	>	* current testcase will fail.
862		*/
863		public void threadAssertEquals(Object x, Object y) {
864		try {
865		assertEquals(x, y);
866	<	} catch (AssertionFailedError fail) {
866	>	} catch (AssertionError fail) {
867		threadRecordFailure(fail);
868		throw fail;
869		} catch (Throwable fail) {
#	Line 852 | Line 873 | public class JSR166TestCase extends Test
873
874		/**
875		* Just like assertSame(x, y), but additionally recording (using
876	<	* threadRecordFailure) any AssertionFailedError thrown, so that
877	<	* the current testcase will fail.
876	>	* threadRecordFailure) any AssertionError thrown, so that the
877	>	* current testcase will fail.
878		*/
879		public void threadAssertSame(Object x, Object y) {
880		try {
881		assertSame(x, y);
882	<	} catch (AssertionFailedError fail) {
882	>	} catch (AssertionError fail) {
883		threadRecordFailure(fail);
884		throw fail;
885		}
#	Line 880 | Line 901 | public class JSR166TestCase extends Test
901
902		/**
903		* Records the given exception using {@link #threadRecordFailure},
904	<	* then rethrows the exception, wrapping it in an
905	<	* AssertionFailedError if necessary.
904	>	* then rethrows the exception, wrapping it in an AssertionError
905	>	* if necessary.
906		*/
907		public void threadUnexpectedException(Throwable t) {
908		threadRecordFailure(t);
#	Line 890 | Line 911 | public class JSR166TestCase extends Test
911		throw (RuntimeException) t;
912		else if (t instanceof Error)
913		throw (Error) t;
914	<	else {
915	<	AssertionFailedError afe =
895	<	new AssertionFailedError("unexpected exception: " + t);
896	<	afe.initCause(t);
897	<	throw afe;
898	<	}
914	>	else
915	>	throw new AssertionError("unexpected exception: " + t, t);
916		}
917
918		/**
#	Line 1071 | Line 1088 | public class JSR166TestCase extends Test
1088		for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1089		try { delay(1); }
1090		catch (InterruptedException fail) {
1091	<	fail("Unexpected InterruptedException");
1091	>	throw new AssertionError("Unexpected InterruptedException", fail);
1092		}
1093		Thread.State s = thread.getState();
1094		if (s == expected)
#	Line 1083 | Line 1100 | public class JSR166TestCase extends Test
1100		}
1101
1102		/**
1086	–	* Checks that thread does not terminate within the default
1087	–	* millisecond delay of {@code timeoutMillis()}.
1088	–	* TODO: REMOVEME
1089	–	*/
1090	–	void assertThreadStaysAlive(Thread thread) {
1091	–	assertThreadStaysAlive(thread, timeoutMillis());
1092	–	}
1093	–
1094	–	/**
1095	–	* Checks that thread does not terminate within the given millisecond delay.
1096	–	* TODO: REMOVEME
1097	–	*/
1098	–	void assertThreadStaysAlive(Thread thread, long millis) {
1099	–	try {
1100	–	// No need to optimize the failing case via Thread.join.
1101	–	delay(millis);
1102	–	assertTrue(thread.isAlive());
1103	–	} catch (InterruptedException fail) {
1104	–	threadFail("Unexpected InterruptedException");
1105	–	}
1106	–	}
1107	–
1108	–	/**
1103		* Checks that future.get times out, with the default timeout of
1104		* {@code timeoutMillis()}.
1105		*/
#	Line 1280 | Line 1274 | public class JSR166TestCase extends Test
1274
1275		/**
1276		* Sleeps until the given time has elapsed.
1277	<	* Throws AssertionFailedError if interrupted.
1277	>	* Throws AssertionError if interrupted.
1278		*/
1279		static void sleep(long millis) {
1280		try {
1281		delay(millis);
1282		} catch (InterruptedException fail) {
1283	<	AssertionFailedError afe =
1290	<	new AssertionFailedError("Unexpected InterruptedException");
1291	<	afe.initCause(fail);
1292	<	throw afe;
1283	>	throw new AssertionError("Unexpected InterruptedException", fail);
1284		}
1285		}
1286
#	Line 1380 | Line 1371 | public class JSR166TestCase extends Test
1371		//             r.run();
1372		//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1373		//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1374	<	//             throw new AssertionFailedError("did not return promptly");
1374	>	//             throw new AssertionError("did not return promptly");
1375		//     }
1376
1377		//     void assertTerminatesPromptly(Runnable r) {
#	Line 1397 | Line 1388 | public class JSR166TestCase extends Test
1388		assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1389		} catch (Throwable fail) { threadUnexpectedException(fail); }
1390		if (millisElapsedSince(startTime) > timeoutMillis/2)
1391	<	throw new AssertionFailedError("timed get did not return promptly");
1391	>	throw new AssertionError("timed get did not return promptly");
1392		}
1393
1394		<T> void checkTimedGet(Future<T> f, T expectedValue) {
#	Line 1639 | Line 1630 | public class JSR166TestCase extends Test
1630		//         long startTime = System.nanoTime();
1631		//         while (!flag.get()) {
1632		//             if (millisElapsedSince(startTime) > timeoutMillis)
1633	<	//                 throw new AssertionFailedError("timed out");
1633	>	//                 throw new AssertionError("timed out");
1634		//             Thread.yield();
1635		//         }
1636		//     }
#	Line 1648 | Line 1639 | public class JSR166TestCase extends Test
1639		public String call() { throw new NullPointerException(); }
1640		}
1641
1651	–	public static class CallableOne implements Callable<Integer> {
1652	–	public Integer call() { return one; }
1653	–	}
1654	–
1655	–	public class ShortRunnable extends CheckedRunnable {
1656	–	protected void realRun() throws Throwable {
1657	–	delay(SHORT_DELAY_MS);
1658	–	}
1659	–	}
1660	–
1661	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1662	–	protected void realRun() throws InterruptedException {
1663	–	delay(SHORT_DELAY_MS);
1664	–	}
1665	–	}
1666	–
1667	–	public class SmallRunnable extends CheckedRunnable {
1668	–	protected void realRun() throws Throwable {
1669	–	delay(SMALL_DELAY_MS);
1670	–	}
1671	–	}
1672	–
1642		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1643		protected void realRun() {
1644		try {
#	Line 1678 | Line 1647 | public class JSR166TestCase extends Test
1647		}
1648		}
1649
1681	–	public class SmallCallable extends CheckedCallable {
1682	–	protected Object realCall() throws InterruptedException {
1683	–	delay(SMALL_DELAY_MS);
1684	–	return Boolean.TRUE;
1685	–	}
1686	–	}
1687	–
1688	–	public class MediumRunnable extends CheckedRunnable {
1689	–	protected void realRun() throws Throwable {
1690	–	delay(MEDIUM_DELAY_MS);
1691	–	}
1692	–	}
1693	–
1694	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1695	–	protected void realRun() throws InterruptedException {
1696	–	delay(MEDIUM_DELAY_MS);
1697	–	}
1698	–	}
1699	–
1650		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1651		return new CheckedRunnable() {
1652		protected void realRun() {
#	Line 1706 | Line 1656 | public class JSR166TestCase extends Test
1656		}};
1657		}
1658
1709	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1710	–	protected void realRun() {
1711	–	try {
1712	–	delay(MEDIUM_DELAY_MS);
1713	–	} catch (InterruptedException ok) {}
1714	–	}
1715	–	}
1716	–
1717	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1718	–	protected void realRun() {
1719	–	try {
1720	–	delay(LONG_DELAY_MS);
1721	–	} catch (InterruptedException ok) {}
1722	–	}
1723	–	}
1724	–
1659		/**
1660		* For use as ThreadFactory in constructors
1661		*/
#	Line 1735 | Line 1669 | public class JSR166TestCase extends Test
1669		boolean isDone();
1670		}
1671
1738	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1739	–	return new TrackedRunnable() {
1740	–	private volatile boolean done = false;
1741	–	public boolean isDone() { return done; }
1742	–	public void run() {
1743	–	try {
1744	–	delay(timeoutMillis);
1745	–	done = true;
1746	–	} catch (InterruptedException ok) {}
1747	–	}
1748	–	};
1749	–	}
1750	–
1751	–	public static class TrackedShortRunnable implements Runnable {
1752	–	public volatile boolean done = false;
1753	–	public void run() {
1754	–	try {
1755	–	delay(SHORT_DELAY_MS);
1756	–	done = true;
1757	–	} catch (InterruptedException ok) {}
1758	–	}
1759	–	}
1760	–
1761	–	public static class TrackedSmallRunnable implements Runnable {
1762	–	public volatile boolean done = false;
1763	–	public void run() {
1764	–	try {
1765	–	delay(SMALL_DELAY_MS);
1766	–	done = true;
1767	–	} catch (InterruptedException ok) {}
1768	–	}
1769	–	}
1770	–
1771	–	public static class TrackedMediumRunnable implements Runnable {
1772	–	public volatile boolean done = false;
1773	–	public void run() {
1774	–	try {
1775	–	delay(MEDIUM_DELAY_MS);
1776	–	done = true;
1777	–	} catch (InterruptedException ok) {}
1778	–	}
1779	–	}
1780	–
1781	–	public static class TrackedLongRunnable implements Runnable {
1782	–	public volatile boolean done = false;
1783	–	public void run() {
1784	–	try {
1785	–	delay(LONG_DELAY_MS);
1786	–	done = true;
1787	–	} catch (InterruptedException ok) {}
1788	–	}
1789	–	}
1790	–
1672		public static class TrackedNoOpRunnable implements Runnable {
1673		public volatile boolean done = false;
1674		public void run() {
#	Line 1795 | Line 1676 | public class JSR166TestCase extends Test
1676		}
1677		}
1678
1798	–	public static class TrackedCallable implements Callable {
1799	–	public volatile boolean done = false;
1800	–	public Object call() {
1801	–	try {
1802	–	delay(SMALL_DELAY_MS);
1803	–	done = true;
1804	–	} catch (InterruptedException ok) {}
1805	–	return Boolean.TRUE;
1806	–	}
1807	–	}
1808	–
1679		/**
1680		* Analog of CheckedRunnable for RecursiveAction
1681		*/
#	Line 1847 | Line 1717 | public class JSR166TestCase extends Test
1717
1718		/**
1719		* A CyclicBarrier that uses timed await and fails with
1720	<	* AssertionFailedErrors instead of throwing checked exceptions.
1720	>	* AssertionErrors instead of throwing checked exceptions.
1721		*/
1722		public static class CheckedBarrier extends CyclicBarrier {
1723		public CheckedBarrier(int parties) { super(parties); }
#	Line 1856 | Line 1726 | public class JSR166TestCase extends Test
1726		try {
1727		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1728		} catch (TimeoutException timedOut) {
1729	<	throw new AssertionFailedError("timed out");
1729	>	throw new AssertionError("timed out");
1730		} catch (Exception fail) {
1731	<	AssertionFailedError afe =
1862	<	new AssertionFailedError("Unexpected exception: " + fail);
1863	<	afe.initCause(fail);
1864	<	throw afe;
1731	>	throw new AssertionError("Unexpected exception: " + fail, fail);
1732		}
1733		}
1734		}
#	Line 1872 | Line 1739 | public class JSR166TestCase extends Test
1739		assertEquals(0, q.size());
1740		assertNull(q.peek());
1741		assertNull(q.poll());
1742	<	assertNull(q.poll(0, MILLISECONDS));
1742	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1743		assertEquals(q.toString(), "[]");
1744		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1745		assertFalse(q.iterator().hasNext());
#	Line 1984 | Line 1851 | public class JSR166TestCase extends Test
1851		try { throwingAction.run(); }
1852		catch (Throwable t) {
1853		threw = true;
1854	<	if (!expectedExceptionClass.isInstance(t)) {
1855	<	AssertionFailedError afe =
1856	<	new AssertionFailedError
1857	<	("Expected " + expectedExceptionClass.getName() +
1858	<	", got " + t.getClass().getName());
1992	<	afe.initCause(t);
1993	<	threadUnexpectedException(afe);
1994	<	}
1854	>	if (!expectedExceptionClass.isInstance(t))
1855	>	throw new AssertionError(
1856	>	"Expected " + expectedExceptionClass.getName() +
1857	>	", got " + t.getClass().getName(),
1858	>	t);
1859		}
1860		if (!threw)
1861		shouldThrow(expectedExceptionClass.getName());
#	Line 2023 | Line 1887 | public class JSR166TestCase extends Test
1887		static <T> void shuffle(T[] array) {
1888		Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1889		}
1890	+
1891	+	/**
1892	+	* Returns the same String as would be returned by {@link
1893	+	* Object#toString}, whether or not the given object's class
1894	+	* overrides toString().
1895	+	*
1896	+	* @see System#identityHashCode
1897	+	*/
1898	+	static String identityString(Object x) {
1899	+	return x.getClass().getName()
1900	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1901	+	}
1902	+
1903	+	// --- Shared assertions for Executor tests ---
1904	+
1905	+	/**
1906	+	* Returns maximum number of tasks that can be submitted to given
1907	+	* pool (with bounded queue) before saturation (when submission
1908	+	* throws RejectedExecutionException).
1909	+	*/
1910	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1911	+	BlockingQueue<Runnable> q = pool.getQueue();
1912	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1913	+	}
1914	+
1915	+	@SuppressWarnings("FutureReturnValueIgnored")
1916	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1917	+	try {
1918	+	e.execute((Runnable) null);
1919	+	shouldThrow();
1920	+	} catch (NullPointerException success) {}
1921	+
1922	+	if (! (e instanceof ExecutorService)) return;
1923	+	ExecutorService es = (ExecutorService) e;
1924	+	try {
1925	+	es.submit((Runnable) null);
1926	+	shouldThrow();
1927	+	} catch (NullPointerException success) {}
1928	+	try {
1929	+	es.submit((Runnable) null, Boolean.TRUE);
1930	+	shouldThrow();
1931	+	} catch (NullPointerException success) {}
1932	+	try {
1933	+	es.submit((Callable) null);
1934	+	shouldThrow();
1935	+	} catch (NullPointerException success) {}
1936	+
1937	+	if (! (e instanceof ScheduledExecutorService)) return;
1938	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1939	+	try {
1940	+	ses.schedule((Runnable) null,
1941	+	randomTimeout(), randomTimeUnit());
1942	+	shouldThrow();
1943	+	} catch (NullPointerException success) {}
1944	+	try {
1945	+	ses.schedule((Callable) null,
1946	+	randomTimeout(), randomTimeUnit());
1947	+	shouldThrow();
1948	+	} catch (NullPointerException success) {}
1949	+	try {
1950	+	ses.scheduleAtFixedRate((Runnable) null,
1951	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1952	+	shouldThrow();
1953	+	} catch (NullPointerException success) {}
1954	+	try {
1955	+	ses.scheduleWithFixedDelay((Runnable) null,
1956	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1957	+	shouldThrow();
1958	+	} catch (NullPointerException success) {}
1959	+	}
1960	+
1961	+	void setRejectedExecutionHandler(
1962	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1963	+	p.setRejectedExecutionHandler(handler);
1964	+	assertSame(handler, p.getRejectedExecutionHandler());
1965	+	}
1966	+
1967	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1968	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1969	+	final long savedTaskCount = p.getTaskCount();
1970	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1971	+	final int savedQueueSize = p.getQueue().size();
1972	+	final boolean stock = (p.getClass().getClassLoader() == null);
1973	+
1974	+	Runnable r = () -> {};
1975	+	Callable<Boolean> c = () -> Boolean.TRUE;
1976	+
1977	+	class Recorder implements RejectedExecutionHandler {
1978	+	public volatile Runnable r = null;
1979	+	public volatile ThreadPoolExecutor p = null;
1980	+	public void reset() { r = null; p = null; }
1981	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1982	+	assertNull(this.r);
1983	+	assertNull(this.p);
1984	+	this.r = r;
1985	+	this.p = p;
1986	+	}
1987	+	}
1988	+
1989	+	// check custom handler is invoked exactly once per task
1990	+	Recorder recorder = new Recorder();
1991	+	setRejectedExecutionHandler(p, recorder);
1992	+	for (int i = 2; i--> 0; ) {
1993	+	recorder.reset();
1994	+	p.execute(r);
1995	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
1996	+	assertSame(r, recorder.r);
1997	+	assertSame(p, recorder.p);
1998	+
1999	+	recorder.reset();
2000	+	assertFalse(p.submit(r).isDone());
2001	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2002	+	assertSame(p, recorder.p);
2003	+
2004	+	recorder.reset();
2005	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2006	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2007	+	assertSame(p, recorder.p);
2008	+
2009	+	recorder.reset();
2010	+	assertFalse(p.submit(c).isDone());
2011	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2012	+	assertSame(p, recorder.p);
2013	+
2014	+	if (p instanceof ScheduledExecutorService) {
2015	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2016	+	ScheduledFuture<?> future;
2017	+
2018	+	recorder.reset();
2019	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2020	+	assertFalse(future.isDone());
2021	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2022	+	assertSame(p, recorder.p);
2023	+
2024	+	recorder.reset();
2025	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2026	+	assertFalse(future.isDone());
2027	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2028	+	assertSame(p, recorder.p);
2029	+
2030	+	recorder.reset();
2031	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2032	+	assertFalse(future.isDone());
2033	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2034	+	assertSame(p, recorder.p);
2035	+
2036	+	recorder.reset();
2037	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2038	+	assertFalse(future.isDone());
2039	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2040	+	assertSame(p, recorder.p);
2041	+	}
2042	+	}
2043	+
2044	+	// Checking our custom handler above should be sufficient, but
2045	+	// we add some integration tests of standard handlers.
2046	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2047	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2048	+
2049	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2050	+	try {
2051	+	p.execute(setThread);
2052	+	shouldThrow();
2053	+	} catch (RejectedExecutionException success) {}
2054	+	assertNull(thread.get());
2055	+
2056	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2057	+	p.execute(setThread);
2058	+	assertNull(thread.get());
2059	+
2060	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2061	+	p.execute(setThread);
2062	+	if (p.isShutdown())
2063	+	assertNull(thread.get());
2064	+	else
2065	+	assertSame(Thread.currentThread(), thread.get());
2066	+
2067	+	setRejectedExecutionHandler(p, savedHandler);
2068	+
2069	+	// check that pool was not perturbed by handlers
2070	+	assertEquals(savedTaskCount, p.getTaskCount());
2071	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2072	+	assertEquals(savedQueueSize, p.getQueue().size());
2073	+	}
2074		}

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