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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.212 by jsr166, Fri Dec 9 04:24:07 2016 UTC vs.
Revision 1.235 by jsr166, Sat Jul 22 18:23:59 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
13	<	* @modules java.base/java.util.concurrent:open
14	<	*          java.management
12	>	* @summary JSR-166 tck tests, in a number of variations.
13	>	*          The first is the conformance testing variant,
14	>	*          while others also test implementation details.
15		* @build *
16	<	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
17	<	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 -Djsr166.testImplementationDetails=true JSR166TestCase
18	<	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 -Djava.util.secureRandomSeed=true JSR166TestCase
16	>	* @modules java.management
17	>	* @run junit/othervm/timeout=1000 JSR166TestCase
18	>	* @run junit/othervm/timeout=1000
19	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
20	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
21	>	*      -Djsr166.testImplementationDetails=true
22	>	*      JSR166TestCase
23	>	* @run junit/othervm/timeout=1000
24	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
25	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
26	>	*      -Djsr166.testImplementationDetails=true
27	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
28	>	*      JSR166TestCase
29	>	* @run junit/othervm/timeout=1000
30	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
31	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
32	>	*      -Djsr166.testImplementationDetails=true
33	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
34	>	*      -Djava.util.secureRandomSeed=true
35	>	*      JSR166TestCase
36	>	* @run junit/othervm/timeout=1000/policy=tck.policy
37	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
38	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
39	>	*      -Djsr166.testImplementationDetails=true
40	>	*      JSR166TestCase
41		*/
42
43		import static java.util.concurrent.TimeUnit.MILLISECONDS;
#	Line 31 | 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;
34	–	import java.nio.file.Files;
35	–	import java.nio.file.Paths;
57		import java.security.CodeSource;
58		import java.security.Permission;
59		import java.security.PermissionCollection;
#	Line 55 | 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;
73	–	import java.util.regex.Matcher;
100		import java.util.regex.Pattern;
101
102		import junit.framework.AssertionFailedError;
#	Line 280 | 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 516 | Line 544 | public class JSR166TestCase extends Test
544		"DoubleAdderTest",
545		"ForkJoinPool8Test",
546		"ForkJoinTask8Test",
547	+	"LinkedBlockingDeque8Test",
548	+	"LinkedBlockingQueue8Test",
549		"LongAccumulatorTest",
550		"LongAdderTest",
551		"SplittableRandomTest",
#	Line 538 | Line 568 | public class JSR166TestCase extends Test
568		"AtomicReference9Test",
569		"AtomicReferenceArray9Test",
570		"ExecutorCompletionService9Test",
571	+	"ForkJoinPool9Test",
572		};
573		addNamedTestClasses(suite, java9TestClassNames);
574		}
#	Line 548 | Line 579 | public class JSR166TestCase extends Test
579		/** Returns list of junit-style test method names in given class. */
580		public static ArrayList<String> testMethodNames(Class<?> testClass) {
581		Method[] methods = testClass.getDeclaredMethods();
582	<	ArrayList<String> names = new ArrayList<String>(methods.length);
582	>	ArrayList<String> names = new ArrayList<>(methods.length);
583		for (Method method : methods) {
584		if (method.getName().startsWith("test")
585		&& Modifier.isPublic(method.getModifiers())
#	Line 613 | Line 644 | public class JSR166TestCase extends Test
644		public static long MEDIUM_DELAY_MS;
645		public static long LONG_DELAY_MS;
646
647	+	private static final long RANDOM_TIMEOUT;
648	+	private static final long RANDOM_EXPIRED_TIMEOUT;
649	+	private static final TimeUnit RANDOM_TIMEUNIT;
650	+	static {
651	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
652	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
653	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
654	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
655	+	TimeUnit[] timeUnits = TimeUnit.values();
656	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
657	+	}
658	+
659	+	/**
660	+	* Returns a timeout for use when any value at all will do.
661	+	*/
662	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
663	+
664	+	/**
665	+	* Returns a timeout that means "no waiting", i.e. not positive.
666	+	*/
667	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
668	+
669	+	/**
670	+	* Returns a random non-null TimeUnit.
671	+	*/
672	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
673	+
674		/**
675		* Returns the shortest timed delay. This can be scaled up for
676		* slow machines using the jsr166.delay.factor system property,
#	Line 633 | Line 691 | public class JSR166TestCase extends Test
691		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
692		}
693
694	+	private static final long TIMEOUT_DELAY_MS
695	+	= (long) (12.0 * Math.cbrt(delayFactor));
696	+
697		/**
698	<	* Returns a timeout in milliseconds to be used in tests that
699	<	* verify that operations block or time out.
698	>	* Returns a timeout in milliseconds to be used in tests that verify
699	>	* that operations block or time out.  We want this to be longer
700	>	* than the OS scheduling quantum, but not too long, so don't scale
701	>	* linearly with delayFactor; we use "crazy" cube root instead.
702		*/
703	<	long timeoutMillis() {
704	<	return SHORT_DELAY_MS / 4;
703	>	static long timeoutMillis() {
704	>	return TIMEOUT_DELAY_MS;
705		}
706
707		/**
#	Line 654 | Line 717 | public class JSR166TestCase extends Test
717		* The first exception encountered if any threadAssertXXX method fails.
718		*/
719		private final AtomicReference<Throwable> threadFailure
720	<	= new AtomicReference<Throwable>(null);
720	>	= new AtomicReference<>(null);
721
722		/**
723		* Records an exception so that it can be rethrown later in the test
#	Line 1033 | Line 1096 | public class JSR166TestCase extends Test
1096		}
1097
1098		/**
1099	<	* Checks that thread does not terminate within the default
1037	<	* millisecond delay of {@code timeoutMillis()}.
1038	<	*/
1039	<	void assertThreadStaysAlive(Thread thread) {
1040	<	assertThreadStaysAlive(thread, timeoutMillis());
1041	<	}
1042	<
1043	<	/**
1044	<	* Checks that thread does not terminate within the given millisecond delay.
1045	<	*/
1046	<	void assertThreadStaysAlive(Thread thread, long millis) {
1047	<	try {
1048	<	// No need to optimize the failing case via Thread.join.
1049	<	delay(millis);
1050	<	assertTrue(thread.isAlive());
1051	<	} catch (InterruptedException fail) {
1052	<	threadFail("Unexpected InterruptedException");
1053	<	}
1054	<	}
1055	<
1056	<	/**
1057	<	* Checks that the threads do not terminate within the default
1058	<	* millisecond delay of {@code timeoutMillis()}.
1099	>	* Checks that thread eventually enters the expected blocked thread state.
1100		*/
1101	<	void assertThreadsStayAlive(Thread... threads) {
1102	<	assertThreadsStayAlive(timeoutMillis(), threads);
1103	<	}
1104	<
1105	<	/**
1106	<	* Checks that the threads do not terminate within the given millisecond delay.
1107	<	*/
1108	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1109	<	try {
1110	<	// No need to optimize the failing case via Thread.join.
1111	<	delay(millis);
1112	<	for (Thread thread : threads)
1113	<	assertTrue(thread.isAlive());
1073	<	} catch (InterruptedException fail) {
1074	<	threadFail("Unexpected InterruptedException");
1101	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1102	>	// always sleep at least 1 ms, with high probability avoiding
1103	>	// transitory states
1104	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1105	>	try { delay(1); }
1106	>	catch (InterruptedException fail) {
1107	>	fail("Unexpected InterruptedException");
1108	>	}
1109	>	Thread.State s = thread.getState();
1110	>	if (s == expected)
1111	>	return;
1112	>	else if (s == Thread.State.TERMINATED)
1113	>	fail("Unexpected thread termination");
1114		}
1115	+	fail("timed out waiting for thread to enter thread state " + expected);
1116		}
1117
1118		/**
#	Line 1113 | Line 1153 | public class JSR166TestCase extends Test
1153		}
1154
1155		/**
1156	+	* The maximum number of consecutive spurious wakeups we should
1157	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1158	+	*/
1159	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1160	+
1161	+	/**
1162		* The number of elements to place in collections, arrays, etc.
1163		*/
1164		public static final int SIZE = 20;
#	Line 1216 | Line 1262 | public class JSR166TestCase extends Test
1262		}
1263		public void refresh() {}
1264		public String toString() {
1265	<	List<Permission> ps = new ArrayList<Permission>();
1265	>	List<Permission> ps = new ArrayList<>();
1266		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1267		ps.add(e.nextElement());
1268		return "AdjustablePolicy with permissions " + ps;
#	Line 1275 | Line 1321 | public class JSR166TestCase extends Test
1321		startTime = System.nanoTime();
1322		else if (millisElapsedSince(startTime) > timeoutMillis) {
1323		threadAssertTrue(thread.isAlive());
1324	<	return;
1324	>	fail("timed out waiting for thread to enter wait state");
1325	>	}
1326	>	Thread.yield();
1327	>	}
1328	>	}
1329	>
1330	>	/**
1331	>	* Spin-waits up to the specified number of milliseconds for the given
1332	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1333	>	* and additionally satisfy the given condition.
1334	>	*/
1335	>	void waitForThreadToEnterWaitState(
1336	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1337	>	long startTime = 0L;
1338	>	for (;;) {
1339	>	Thread.State s = thread.getState();
1340	>	if (s == Thread.State.BLOCKED ||
1341	>	s == Thread.State.WAITING ||
1342	>	s == Thread.State.TIMED_WAITING) {
1343	>	try {
1344	>	if (waitingForGodot.call())
1345	>	return;
1346	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1347	>	}
1348	>	else if (s == Thread.State.TERMINATED)
1349	>	fail("Unexpected thread termination");
1350	>	else if (startTime == 0L)
1351	>	startTime = System.nanoTime();
1352	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1353	>	threadAssertTrue(thread.isAlive());
1354	>	fail("timed out waiting for thread to enter wait state");
1355		}
1356		Thread.yield();
1357		}
1358		}
1359
1360		/**
1361	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1362	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1361	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1362	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1363		*/
1364		void waitForThreadToEnterWaitState(Thread thread) {
1365		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1366		}
1367
1368		/**
1369	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1370	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1371	+	* and additionally satisfy the given condition.
1372	+	*/
1373	+	void waitForThreadToEnterWaitState(
1374	+	Thread thread, Callable<Boolean> waitingForGodot) {
1375	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1376	+	}
1377	+
1378	+	/**
1379		* Returns the number of milliseconds since time given by
1380		* startNanoTime, which must have been previously returned from a
1381		* call to {@link System#nanoTime()}.
#	Line 1541 | Line 1627 | public class JSR166TestCase extends Test
1627		}
1628		}
1629
1630	+	public void await(CyclicBarrier barrier) {
1631	+	try {
1632	+	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1633	+	} catch (Throwable fail) {
1634	+	threadUnexpectedException(fail);
1635	+	}
1636	+	}
1637	+
1638		//     /**
1639		//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1640		//      */
#	Line 1564 | Line 1658 | public class JSR166TestCase extends Test
1658		public String call() { throw new NullPointerException(); }
1659		}
1660
1567	–	public static class CallableOne implements Callable<Integer> {
1568	–	public Integer call() { return one; }
1569	–	}
1570	–
1571	–	public class ShortRunnable extends CheckedRunnable {
1572	–	protected void realRun() throws Throwable {
1573	–	delay(SHORT_DELAY_MS);
1574	–	}
1575	–	}
1576	–
1577	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1578	–	protected void realRun() throws InterruptedException {
1579	–	delay(SHORT_DELAY_MS);
1580	–	}
1581	–	}
1582	–
1583	–	public class SmallRunnable extends CheckedRunnable {
1584	–	protected void realRun() throws Throwable {
1585	–	delay(SMALL_DELAY_MS);
1586	–	}
1587	–	}
1588	–
1661		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1662		protected void realRun() {
1663		try {
#	Line 1594 | Line 1666 | public class JSR166TestCase extends Test
1666		}
1667		}
1668
1597	–	public class SmallCallable extends CheckedCallable {
1598	–	protected Object realCall() throws InterruptedException {
1599	–	delay(SMALL_DELAY_MS);
1600	–	return Boolean.TRUE;
1601	–	}
1602	–	}
1603	–
1604	–	public class MediumRunnable extends CheckedRunnable {
1605	–	protected void realRun() throws Throwable {
1606	–	delay(MEDIUM_DELAY_MS);
1607	–	}
1608	–	}
1609	–
1610	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1611	–	protected void realRun() throws InterruptedException {
1612	–	delay(MEDIUM_DELAY_MS);
1613	–	}
1614	–	}
1615	–
1669		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1670		return new CheckedRunnable() {
1671		protected void realRun() {
#	Line 1622 | Line 1675 | public class JSR166TestCase extends Test
1675		}};
1676		}
1677
1625	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1626	–	protected void realRun() {
1627	–	try {
1628	–	delay(MEDIUM_DELAY_MS);
1629	–	} catch (InterruptedException ok) {}
1630	–	}
1631	–	}
1632	–
1633	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1634	–	protected void realRun() {
1635	–	try {
1636	–	delay(LONG_DELAY_MS);
1637	–	} catch (InterruptedException ok) {}
1638	–	}
1639	–	}
1640	–
1678		/**
1679		* For use as ThreadFactory in constructors
1680		*/
#	Line 1651 | Line 1688 | public class JSR166TestCase extends Test
1688		boolean isDone();
1689		}
1690
1654	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1655	–	return new TrackedRunnable() {
1656	–	private volatile boolean done = false;
1657	–	public boolean isDone() { return done; }
1658	–	public void run() {
1659	–	try {
1660	–	delay(timeoutMillis);
1661	–	done = true;
1662	–	} catch (InterruptedException ok) {}
1663	–	}
1664	–	};
1665	–	}
1666	–
1667	–	public static class TrackedShortRunnable implements Runnable {
1668	–	public volatile boolean done = false;
1669	–	public void run() {
1670	–	try {
1671	–	delay(SHORT_DELAY_MS);
1672	–	done = true;
1673	–	} catch (InterruptedException ok) {}
1674	–	}
1675	–	}
1676	–
1677	–	public static class TrackedSmallRunnable implements Runnable {
1678	–	public volatile boolean done = false;
1679	–	public void run() {
1680	–	try {
1681	–	delay(SMALL_DELAY_MS);
1682	–	done = true;
1683	–	} catch (InterruptedException ok) {}
1684	–	}
1685	–	}
1686	–
1687	–	public static class TrackedMediumRunnable implements Runnable {
1688	–	public volatile boolean done = false;
1689	–	public void run() {
1690	–	try {
1691	–	delay(MEDIUM_DELAY_MS);
1692	–	done = true;
1693	–	} catch (InterruptedException ok) {}
1694	–	}
1695	–	}
1696	–
1697	–	public static class TrackedLongRunnable implements Runnable {
1698	–	public volatile boolean done = false;
1699	–	public void run() {
1700	–	try {
1701	–	delay(LONG_DELAY_MS);
1702	–	done = true;
1703	–	} catch (InterruptedException ok) {}
1704	–	}
1705	–	}
1706	–
1691		public static class TrackedNoOpRunnable implements Runnable {
1692		public volatile boolean done = false;
1693		public void run() {
#	Line 1711 | Line 1695 | public class JSR166TestCase extends Test
1695		}
1696		}
1697
1714	–	public static class TrackedCallable implements Callable {
1715	–	public volatile boolean done = false;
1716	–	public Object call() {
1717	–	try {
1718	–	delay(SMALL_DELAY_MS);
1719	–	done = true;
1720	–	} catch (InterruptedException ok) {}
1721	–	return Boolean.TRUE;
1722	–	}
1723	–	}
1724	–
1698		/**
1699		* Analog of CheckedRunnable for RecursiveAction
1700		*/
#	Line 1788 | Line 1761 | public class JSR166TestCase extends Test
1761		assertEquals(0, q.size());
1762		assertNull(q.peek());
1763		assertNull(q.poll());
1764	<	assertNull(q.poll(0, MILLISECONDS));
1764	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1765		assertEquals(q.toString(), "[]");
1766		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1767		assertFalse(q.iterator().hasNext());
#	Line 1939 | Line 1912 | public class JSR166TestCase extends Test
1912		static <T> void shuffle(T[] array) {
1913		Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1914		}
1915	+
1916	+	// --- Shared assertions for Executor tests ---
1917	+
1918	+	/**
1919	+	* Returns maximum number of tasks that can be submitted to given
1920	+	* pool (with bounded queue) before saturation (when submission
1921	+	* throws RejectedExecutionException).
1922	+	*/
1923	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1924	+	BlockingQueue<Runnable> q = pool.getQueue();
1925	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1926	+	}
1927	+
1928	+	@SuppressWarnings("FutureReturnValueIgnored")
1929	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1930	+	try {
1931	+	e.execute((Runnable) null);
1932	+	shouldThrow();
1933	+	} catch (NullPointerException success) {}
1934	+
1935	+	if (! (e instanceof ExecutorService)) return;
1936	+	ExecutorService es = (ExecutorService) e;
1937	+	try {
1938	+	es.submit((Runnable) null);
1939	+	shouldThrow();
1940	+	} catch (NullPointerException success) {}
1941	+	try {
1942	+	es.submit((Runnable) null, Boolean.TRUE);
1943	+	shouldThrow();
1944	+	} catch (NullPointerException success) {}
1945	+	try {
1946	+	es.submit((Callable) null);
1947	+	shouldThrow();
1948	+	} catch (NullPointerException success) {}
1949	+
1950	+	if (! (e instanceof ScheduledExecutorService)) return;
1951	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1952	+	try {
1953	+	ses.schedule((Runnable) null,
1954	+	randomTimeout(), randomTimeUnit());
1955	+	shouldThrow();
1956	+	} catch (NullPointerException success) {}
1957	+	try {
1958	+	ses.schedule((Callable) null,
1959	+	randomTimeout(), randomTimeUnit());
1960	+	shouldThrow();
1961	+	} catch (NullPointerException success) {}
1962	+	try {
1963	+	ses.scheduleAtFixedRate((Runnable) null,
1964	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1965	+	shouldThrow();
1966	+	} catch (NullPointerException success) {}
1967	+	try {
1968	+	ses.scheduleWithFixedDelay((Runnable) null,
1969	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1970	+	shouldThrow();
1971	+	} catch (NullPointerException success) {}
1972	+	}
1973	+
1974	+	void setRejectedExecutionHandler(
1975	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1976	+	p.setRejectedExecutionHandler(handler);
1977	+	assertSame(handler, p.getRejectedExecutionHandler());
1978	+	}
1979	+
1980	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1981	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1982	+	final long savedTaskCount = p.getTaskCount();
1983	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1984	+	final int savedQueueSize = p.getQueue().size();
1985	+	final boolean stock = (p.getClass().getClassLoader() == null);
1986	+
1987	+	Runnable r = () -> {};
1988	+	Callable<Boolean> c = () -> Boolean.TRUE;
1989	+
1990	+	class Recorder implements RejectedExecutionHandler {
1991	+	public volatile Runnable r = null;
1992	+	public volatile ThreadPoolExecutor p = null;
1993	+	public void reset() { r = null; p = null; }
1994	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1995	+	assertNull(this.r);
1996	+	assertNull(this.p);
1997	+	this.r = r;
1998	+	this.p = p;
1999	+	}
2000	+	}
2001	+
2002	+	// check custom handler is invoked exactly once per task
2003	+	Recorder recorder = new Recorder();
2004	+	setRejectedExecutionHandler(p, recorder);
2005	+	for (int i = 2; i--> 0; ) {
2006	+	recorder.reset();
2007	+	p.execute(r);
2008	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2009	+	assertSame(r, recorder.r);
2010	+	assertSame(p, recorder.p);
2011	+
2012	+	recorder.reset();
2013	+	assertFalse(p.submit(r).isDone());
2014	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2015	+	assertSame(p, recorder.p);
2016	+
2017	+	recorder.reset();
2018	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2019	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2020	+	assertSame(p, recorder.p);
2021	+
2022	+	recorder.reset();
2023	+	assertFalse(p.submit(c).isDone());
2024	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2025	+	assertSame(p, recorder.p);
2026	+
2027	+	if (p instanceof ScheduledExecutorService) {
2028	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2029	+	ScheduledFuture<?> future;
2030	+
2031	+	recorder.reset();
2032	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2033	+	assertFalse(future.isDone());
2034	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2035	+	assertSame(p, recorder.p);
2036	+
2037	+	recorder.reset();
2038	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2039	+	assertFalse(future.isDone());
2040	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2041	+	assertSame(p, recorder.p);
2042	+
2043	+	recorder.reset();
2044	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2045	+	assertFalse(future.isDone());
2046	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2047	+	assertSame(p, recorder.p);
2048	+
2049	+	recorder.reset();
2050	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2051	+	assertFalse(future.isDone());
2052	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2053	+	assertSame(p, recorder.p);
2054	+	}
2055	+	}
2056	+
2057	+	// Checking our custom handler above should be sufficient, but
2058	+	// we add some integration tests of standard handlers.
2059	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2060	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2061	+
2062	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2063	+	try {
2064	+	p.execute(setThread);
2065	+	shouldThrow();
2066	+	} catch (RejectedExecutionException success) {}
2067	+	assertNull(thread.get());
2068	+
2069	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2070	+	p.execute(setThread);
2071	+	assertNull(thread.get());
2072	+
2073	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2074	+	p.execute(setThread);
2075	+	if (p.isShutdown())
2076	+	assertNull(thread.get());
2077	+	else
2078	+	assertSame(Thread.currentThread(), thread.get());
2079	+
2080	+	setRejectedExecutionHandler(p, savedHandler);
2081	+
2082	+	// check that pool was not perturbed by handlers
2083	+	assertEquals(savedTaskCount, p.getTaskCount());
2084	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2085	+	assertEquals(savedQueueSize, p.getQueue().size());
2086	+	}
2087		}

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