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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.215 by jsr166, Sat Dec 10 18:11:05 2016 UTC vs.
Revision 1.237 by jsr166, Wed Aug 23 05:33:00 2017 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 (conformance testing mode)
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
15	–	*/
16	–
17	–	/*
18	–	* @test
19	–	* @summary JSR-166 tck tests (whitebox tests allowed)
20	–	* @build *
21	–	* @modules java.base/java.util.concurrent:open
22	–	*          java.management
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 48 | 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;
51	–	import java.nio.file.Files;
52	–	import java.nio.file.Paths;
57		import java.security.CodeSource;
58		import java.security.Permission;
59		import java.security.PermissionCollection;
#	Line 72 | 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;
90	–	import java.util.regex.Matcher;
100		import java.util.regex.Pattern;
101
102		import junit.framework.AssertionFailedError;
#	Line 297 | Line 306 | public class JSR166TestCase extends Test
306
307		//     public static String cpuModel() {
308		//         try {
309	<	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
309	>	//             java.util.regex.Matcher matcher
310	>	//               = Pattern.compile("model name\\s*: (.*)")
311		//                 .matcher(new String(
312	<	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
312	>	//                     java.nio.file.Files.readAllBytes(
313	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
314		//             matcher.find();
315		//             return matcher.group(1);
316		//         } catch (Exception ex) { return null; }
#	Line 533 | Line 544 | public class JSR166TestCase extends Test
544		"DoubleAdderTest",
545		"ForkJoinPool8Test",
546		"ForkJoinTask8Test",
547	+	"HashMapTest",
548		"LinkedBlockingDeque8Test",
549		"LinkedBlockingQueue8Test",
550		"LongAccumulatorTest",
#	Line 557 | Line 569 | public class JSR166TestCase extends Test
569		"AtomicReference9Test",
570		"AtomicReferenceArray9Test",
571		"ExecutorCompletionService9Test",
572	+	"ForkJoinPool9Test",
573		};
574		addNamedTestClasses(suite, java9TestClassNames);
575		}
#	Line 567 | Line 580 | public class JSR166TestCase extends Test
580		/** Returns list of junit-style test method names in given class. */
581		public static ArrayList<String> testMethodNames(Class<?> testClass) {
582		Method[] methods = testClass.getDeclaredMethods();
583	<	ArrayList<String> names = new ArrayList<String>(methods.length);
583	>	ArrayList<String> names = new ArrayList<>(methods.length);
584		for (Method method : methods) {
585		if (method.getName().startsWith("test")
586		&& Modifier.isPublic(method.getModifiers())
#	Line 632 | Line 645 | public class JSR166TestCase extends Test
645		public static long MEDIUM_DELAY_MS;
646		public static long LONG_DELAY_MS;
647
648	+	private static final long RANDOM_TIMEOUT;
649	+	private static final long RANDOM_EXPIRED_TIMEOUT;
650	+	private static final TimeUnit RANDOM_TIMEUNIT;
651	+	static {
652	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
653	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
654	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
655	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
656	+	TimeUnit[] timeUnits = TimeUnit.values();
657	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
658	+	}
659	+
660	+	/**
661	+	* Returns a timeout for use when any value at all will do.
662	+	*/
663	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
664	+
665	+	/**
666	+	* Returns a timeout that means "no waiting", i.e. not positive.
667	+	*/
668	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
669	+
670	+	/**
671	+	* Returns a random non-null TimeUnit.
672	+	*/
673	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
674	+
675		/**
676		* Returns the shortest timed delay. This can be scaled up for
677		* slow machines using the jsr166.delay.factor system property,
#	Line 652 | Line 692 | public class JSR166TestCase extends Test
692		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
693		}
694
695	+	private static final long TIMEOUT_DELAY_MS
696	+	= (long) (12.0 * Math.cbrt(delayFactor));
697	+
698		/**
699	<	* Returns a timeout in milliseconds to be used in tests that
700	<	* verify that operations block or time out.
699	>	* Returns a timeout in milliseconds to be used in tests that verify
700	>	* that operations block or time out.  We want this to be longer
701	>	* than the OS scheduling quantum, but not too long, so don't scale
702	>	* linearly with delayFactor; we use "crazy" cube root instead.
703		*/
704	<	long timeoutMillis() {
705	<	return SHORT_DELAY_MS / 4;
704	>	static long timeoutMillis() {
705	>	return TIMEOUT_DELAY_MS;
706		}
707
708		/**
#	Line 673 | Line 718 | public class JSR166TestCase extends Test
718		* The first exception encountered if any threadAssertXXX method fails.
719		*/
720		private final AtomicReference<Throwable> threadFailure
721	<	= new AtomicReference<Throwable>(null);
721	>	= new AtomicReference<>(null);
722
723		/**
724		* Records an exception so that it can be rethrown later in the test
#	Line 1052 | Line 1097 | public class JSR166TestCase extends Test
1097		}
1098
1099		/**
1100	<	* Checks that thread does not terminate within the default
1056	<	* millisecond delay of {@code timeoutMillis()}.
1057	<	*/
1058	<	void assertThreadStaysAlive(Thread thread) {
1059	<	assertThreadStaysAlive(thread, timeoutMillis());
1060	<	}
1061	<
1062	<	/**
1063	<	* Checks that thread does not terminate within the given millisecond delay.
1100	>	* Checks that thread eventually enters the expected blocked thread state.
1101		*/
1102	<	void assertThreadStaysAlive(Thread thread, long millis) {
1103	<	try {
1104	<	// No need to optimize the failing case via Thread.join.
1105	<	delay(millis);
1106	<	assertTrue(thread.isAlive());
1107	<	} catch (InterruptedException fail) {
1108	<	threadFail("Unexpected InterruptedException");
1109	<	}
1110	<	}
1111	<
1112	<	/**
1113	<	* Checks that the threads do not terminate within the default
1114	<	* millisecond delay of {@code timeoutMillis()}.
1078	<	*/
1079	<	void assertThreadsStayAlive(Thread... threads) {
1080	<	assertThreadsStayAlive(timeoutMillis(), threads);
1081	<	}
1082	<
1083	<	/**
1084	<	* Checks that the threads do not terminate within the given millisecond delay.
1085	<	*/
1086	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1087	<	try {
1088	<	// No need to optimize the failing case via Thread.join.
1089	<	delay(millis);
1090	<	for (Thread thread : threads)
1091	<	assertTrue(thread.isAlive());
1092	<	} catch (InterruptedException fail) {
1093	<	threadFail("Unexpected InterruptedException");
1102	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1103	>	// always sleep at least 1 ms, with high probability avoiding
1104	>	// transitory states
1105	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1106	>	try { delay(1); }
1107	>	catch (InterruptedException fail) {
1108	>	fail("Unexpected InterruptedException");
1109	>	}
1110	>	Thread.State s = thread.getState();
1111	>	if (s == expected)
1112	>	return;
1113	>	else if (s == Thread.State.TERMINATED)
1114	>	fail("Unexpected thread termination");
1115		}
1116	+	fail("timed out waiting for thread to enter thread state " + expected);
1117		}
1118
1119		/**
#	Line 1132 | Line 1154 | public class JSR166TestCase extends Test
1154		}
1155
1156		/**
1157	+	* The maximum number of consecutive spurious wakeups we should
1158	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1159	+	*/
1160	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1161	+
1162	+	/**
1163		* The number of elements to place in collections, arrays, etc.
1164		*/
1165		public static final int SIZE = 20;
#	Line 1235 | Line 1263 | public class JSR166TestCase extends Test
1263		}
1264		public void refresh() {}
1265		public String toString() {
1266	<	List<Permission> ps = new ArrayList<Permission>();
1266	>	List<Permission> ps = new ArrayList<>();
1267		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1268		ps.add(e.nextElement());
1269		return "AdjustablePolicy with permissions " + ps;
#	Line 1294 | Line 1322 | public class JSR166TestCase extends Test
1322		startTime = System.nanoTime();
1323		else if (millisElapsedSince(startTime) > timeoutMillis) {
1324		threadAssertTrue(thread.isAlive());
1325	<	return;
1325	>	fail("timed out waiting for thread to enter wait state");
1326	>	}
1327	>	Thread.yield();
1328	>	}
1329	>	}
1330	>
1331	>	/**
1332	>	* Spin-waits up to the specified number of milliseconds for the given
1333	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1334	>	* and additionally satisfy the given condition.
1335	>	*/
1336	>	void waitForThreadToEnterWaitState(
1337	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1338	>	long startTime = 0L;
1339	>	for (;;) {
1340	>	Thread.State s = thread.getState();
1341	>	if (s == Thread.State.BLOCKED ||
1342	>	s == Thread.State.WAITING ||
1343	>	s == Thread.State.TIMED_WAITING) {
1344	>	try {
1345	>	if (waitingForGodot.call())
1346	>	return;
1347	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1348	>	}
1349	>	else if (s == Thread.State.TERMINATED)
1350	>	fail("Unexpected thread termination");
1351	>	else if (startTime == 0L)
1352	>	startTime = System.nanoTime();
1353	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1354	>	threadAssertTrue(thread.isAlive());
1355	>	fail("timed out waiting for thread to enter wait state");
1356		}
1357		Thread.yield();
1358		}
1359		}
1360
1361		/**
1362	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1363	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1362	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1363	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1364		*/
1365		void waitForThreadToEnterWaitState(Thread thread) {
1366		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1367		}
1368
1369		/**
1370	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1371	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1372	+	* and additionally satisfy the given condition.
1373	+	*/
1374	+	void waitForThreadToEnterWaitState(
1375	+	Thread thread, Callable<Boolean> waitingForGodot) {
1376	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1377	+	}
1378	+
1379	+	/**
1380		* Returns the number of milliseconds since time given by
1381		* startNanoTime, which must have been previously returned from a
1382		* call to {@link System#nanoTime()}.
#	Line 1560 | Line 1628 | public class JSR166TestCase extends Test
1628		}
1629		}
1630
1631	+	public void await(CyclicBarrier barrier) {
1632	+	try {
1633	+	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1634	+	} catch (Throwable fail) {
1635	+	threadUnexpectedException(fail);
1636	+	}
1637	+	}
1638	+
1639		//     /**
1640		//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1641		//      */
#	Line 1583 | Line 1659 | public class JSR166TestCase extends Test
1659		public String call() { throw new NullPointerException(); }
1660		}
1661
1586	–	public static class CallableOne implements Callable<Integer> {
1587	–	public Integer call() { return one; }
1588	–	}
1589	–
1590	–	public class ShortRunnable extends CheckedRunnable {
1591	–	protected void realRun() throws Throwable {
1592	–	delay(SHORT_DELAY_MS);
1593	–	}
1594	–	}
1595	–
1596	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1597	–	protected void realRun() throws InterruptedException {
1598	–	delay(SHORT_DELAY_MS);
1599	–	}
1600	–	}
1601	–
1602	–	public class SmallRunnable extends CheckedRunnable {
1603	–	protected void realRun() throws Throwable {
1604	–	delay(SMALL_DELAY_MS);
1605	–	}
1606	–	}
1607	–
1662		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1663		protected void realRun() {
1664		try {
#	Line 1613 | Line 1667 | public class JSR166TestCase extends Test
1667		}
1668		}
1669
1616	–	public class SmallCallable extends CheckedCallable {
1617	–	protected Object realCall() throws InterruptedException {
1618	–	delay(SMALL_DELAY_MS);
1619	–	return Boolean.TRUE;
1620	–	}
1621	–	}
1622	–
1623	–	public class MediumRunnable extends CheckedRunnable {
1624	–	protected void realRun() throws Throwable {
1625	–	delay(MEDIUM_DELAY_MS);
1626	–	}
1627	–	}
1628	–
1629	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1630	–	protected void realRun() throws InterruptedException {
1631	–	delay(MEDIUM_DELAY_MS);
1632	–	}
1633	–	}
1634	–
1670		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1671		return new CheckedRunnable() {
1672		protected void realRun() {
#	Line 1641 | Line 1676 | public class JSR166TestCase extends Test
1676		}};
1677		}
1678
1644	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1645	–	protected void realRun() {
1646	–	try {
1647	–	delay(MEDIUM_DELAY_MS);
1648	–	} catch (InterruptedException ok) {}
1649	–	}
1650	–	}
1651	–
1652	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1653	–	protected void realRun() {
1654	–	try {
1655	–	delay(LONG_DELAY_MS);
1656	–	} catch (InterruptedException ok) {}
1657	–	}
1658	–	}
1659	–
1679		/**
1680		* For use as ThreadFactory in constructors
1681		*/
#	Line 1670 | Line 1689 | public class JSR166TestCase extends Test
1689		boolean isDone();
1690		}
1691
1673	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1674	–	return new TrackedRunnable() {
1675	–	private volatile boolean done = false;
1676	–	public boolean isDone() { return done; }
1677	–	public void run() {
1678	–	try {
1679	–	delay(timeoutMillis);
1680	–	done = true;
1681	–	} catch (InterruptedException ok) {}
1682	–	}
1683	–	};
1684	–	}
1685	–
1686	–	public static class TrackedShortRunnable implements Runnable {
1687	–	public volatile boolean done = false;
1688	–	public void run() {
1689	–	try {
1690	–	delay(SHORT_DELAY_MS);
1691	–	done = true;
1692	–	} catch (InterruptedException ok) {}
1693	–	}
1694	–	}
1695	–
1696	–	public static class TrackedSmallRunnable implements Runnable {
1697	–	public volatile boolean done = false;
1698	–	public void run() {
1699	–	try {
1700	–	delay(SMALL_DELAY_MS);
1701	–	done = true;
1702	–	} catch (InterruptedException ok) {}
1703	–	}
1704	–	}
1705	–
1706	–	public static class TrackedMediumRunnable implements Runnable {
1707	–	public volatile boolean done = false;
1708	–	public void run() {
1709	–	try {
1710	–	delay(MEDIUM_DELAY_MS);
1711	–	done = true;
1712	–	} catch (InterruptedException ok) {}
1713	–	}
1714	–	}
1715	–
1716	–	public static class TrackedLongRunnable implements Runnable {
1717	–	public volatile boolean done = false;
1718	–	public void run() {
1719	–	try {
1720	–	delay(LONG_DELAY_MS);
1721	–	done = true;
1722	–	} catch (InterruptedException ok) {}
1723	–	}
1724	–	}
1725	–
1692		public static class TrackedNoOpRunnable implements Runnable {
1693		public volatile boolean done = false;
1694		public void run() {
#	Line 1730 | Line 1696 | public class JSR166TestCase extends Test
1696		}
1697		}
1698
1733	–	public static class TrackedCallable implements Callable {
1734	–	public volatile boolean done = false;
1735	–	public Object call() {
1736	–	try {
1737	–	delay(SMALL_DELAY_MS);
1738	–	done = true;
1739	–	} catch (InterruptedException ok) {}
1740	–	return Boolean.TRUE;
1741	–	}
1742	–	}
1743	–
1699		/**
1700		* Analog of CheckedRunnable for RecursiveAction
1701		*/
#	Line 1807 | Line 1762 | public class JSR166TestCase extends Test
1762		assertEquals(0, q.size());
1763		assertNull(q.peek());
1764		assertNull(q.poll());
1765	<	assertNull(q.poll(0, MILLISECONDS));
1765	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1766		assertEquals(q.toString(), "[]");
1767		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1768		assertFalse(q.iterator().hasNext());
#	Line 1958 | Line 1913 | public class JSR166TestCase extends Test
1913		static <T> void shuffle(T[] array) {
1914		Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1915		}
1916	+
1917	+	/**
1918	+	* Returns the same String as would be returned by {@link
1919	+	* Object#toString}, whether or not the given object's class
1920	+	* overrides toString().
1921	+	*
1922	+	* @see System#identityHashCode
1923	+	*/
1924	+	static String identityString(Object x) {
1925	+	return x.getClass().getName()
1926	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1927	+	}
1928	+
1929	+	// --- Shared assertions for Executor tests ---
1930	+
1931	+	/**
1932	+	* Returns maximum number of tasks that can be submitted to given
1933	+	* pool (with bounded queue) before saturation (when submission
1934	+	* throws RejectedExecutionException).
1935	+	*/
1936	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1937	+	BlockingQueue<Runnable> q = pool.getQueue();
1938	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1939	+	}
1940	+
1941	+	@SuppressWarnings("FutureReturnValueIgnored")
1942	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1943	+	try {
1944	+	e.execute((Runnable) null);
1945	+	shouldThrow();
1946	+	} catch (NullPointerException success) {}
1947	+
1948	+	if (! (e instanceof ExecutorService)) return;
1949	+	ExecutorService es = (ExecutorService) e;
1950	+	try {
1951	+	es.submit((Runnable) null);
1952	+	shouldThrow();
1953	+	} catch (NullPointerException success) {}
1954	+	try {
1955	+	es.submit((Runnable) null, Boolean.TRUE);
1956	+	shouldThrow();
1957	+	} catch (NullPointerException success) {}
1958	+	try {
1959	+	es.submit((Callable) null);
1960	+	shouldThrow();
1961	+	} catch (NullPointerException success) {}
1962	+
1963	+	if (! (e instanceof ScheduledExecutorService)) return;
1964	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1965	+	try {
1966	+	ses.schedule((Runnable) null,
1967	+	randomTimeout(), randomTimeUnit());
1968	+	shouldThrow();
1969	+	} catch (NullPointerException success) {}
1970	+	try {
1971	+	ses.schedule((Callable) null,
1972	+	randomTimeout(), randomTimeUnit());
1973	+	shouldThrow();
1974	+	} catch (NullPointerException success) {}
1975	+	try {
1976	+	ses.scheduleAtFixedRate((Runnable) null,
1977	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1978	+	shouldThrow();
1979	+	} catch (NullPointerException success) {}
1980	+	try {
1981	+	ses.scheduleWithFixedDelay((Runnable) null,
1982	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1983	+	shouldThrow();
1984	+	} catch (NullPointerException success) {}
1985	+	}
1986	+
1987	+	void setRejectedExecutionHandler(
1988	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1989	+	p.setRejectedExecutionHandler(handler);
1990	+	assertSame(handler, p.getRejectedExecutionHandler());
1991	+	}
1992	+
1993	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1994	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1995	+	final long savedTaskCount = p.getTaskCount();
1996	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1997	+	final int savedQueueSize = p.getQueue().size();
1998	+	final boolean stock = (p.getClass().getClassLoader() == null);
1999	+
2000	+	Runnable r = () -> {};
2001	+	Callable<Boolean> c = () -> Boolean.TRUE;
2002	+
2003	+	class Recorder implements RejectedExecutionHandler {
2004	+	public volatile Runnable r = null;
2005	+	public volatile ThreadPoolExecutor p = null;
2006	+	public void reset() { r = null; p = null; }
2007	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2008	+	assertNull(this.r);
2009	+	assertNull(this.p);
2010	+	this.r = r;
2011	+	this.p = p;
2012	+	}
2013	+	}
2014	+
2015	+	// check custom handler is invoked exactly once per task
2016	+	Recorder recorder = new Recorder();
2017	+	setRejectedExecutionHandler(p, recorder);
2018	+	for (int i = 2; i--> 0; ) {
2019	+	recorder.reset();
2020	+	p.execute(r);
2021	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2022	+	assertSame(r, recorder.r);
2023	+	assertSame(p, recorder.p);
2024	+
2025	+	recorder.reset();
2026	+	assertFalse(p.submit(r).isDone());
2027	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2028	+	assertSame(p, recorder.p);
2029	+
2030	+	recorder.reset();
2031	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2032	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2033	+	assertSame(p, recorder.p);
2034	+
2035	+	recorder.reset();
2036	+	assertFalse(p.submit(c).isDone());
2037	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2038	+	assertSame(p, recorder.p);
2039	+
2040	+	if (p instanceof ScheduledExecutorService) {
2041	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2042	+	ScheduledFuture<?> future;
2043	+
2044	+	recorder.reset();
2045	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2046	+	assertFalse(future.isDone());
2047	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2048	+	assertSame(p, recorder.p);
2049	+
2050	+	recorder.reset();
2051	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2052	+	assertFalse(future.isDone());
2053	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2054	+	assertSame(p, recorder.p);
2055	+
2056	+	recorder.reset();
2057	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2058	+	assertFalse(future.isDone());
2059	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2060	+	assertSame(p, recorder.p);
2061	+
2062	+	recorder.reset();
2063	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2064	+	assertFalse(future.isDone());
2065	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2066	+	assertSame(p, recorder.p);
2067	+	}
2068	+	}
2069	+
2070	+	// Checking our custom handler above should be sufficient, but
2071	+	// we add some integration tests of standard handlers.
2072	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2073	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2074	+
2075	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2076	+	try {
2077	+	p.execute(setThread);
2078	+	shouldThrow();
2079	+	} catch (RejectedExecutionException success) {}
2080	+	assertNull(thread.get());
2081	+
2082	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2083	+	p.execute(setThread);
2084	+	assertNull(thread.get());
2085	+
2086	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2087	+	p.execute(setThread);
2088	+	if (p.isShutdown())
2089	+	assertNull(thread.get());
2090	+	else
2091	+	assertSame(Thread.currentThread(), thread.get());
2092	+
2093	+	setRejectedExecutionHandler(p, savedHandler);
2094	+
2095	+	// check that pool was not perturbed by handlers
2096	+	assertEquals(savedTaskCount, p.getTaskCount());
2097	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2098	+	assertEquals(savedQueueSize, p.getQueue().size());
2099	+	}
2100		}

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