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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 1.238 by jsr166, Mon Dec 11 00:27:08 2017 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;
#	Line 439 | Line 445 | public class JSR166TestCase extends Test
445		}
446		}
447
448	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
449	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
450	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
451	<	public static boolean atLeastJava9() {
452	<	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	<	}
448	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
449	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
450	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
451	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
452	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
453
454		/**
455		* Collects all JSR166 unit tests as one suite.
#	Line 538 | Line 537 | public class JSR166TestCase extends Test
537		"DoubleAdderTest",
538		"ForkJoinPool8Test",
539		"ForkJoinTask8Test",
540	+	"HashMapTest",
541		"LinkedBlockingDeque8Test",
542		"LinkedBlockingQueue8Test",
543		"LongAccumulatorTest",
#	Line 638 | Line 638 | public class JSR166TestCase extends Test
638		public static long MEDIUM_DELAY_MS;
639		public static long LONG_DELAY_MS;
640
641	+	private static final long RANDOM_TIMEOUT;
642	+	private static final long RANDOM_EXPIRED_TIMEOUT;
643	+	private static final TimeUnit RANDOM_TIMEUNIT;
644	+	static {
645	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
646	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
647	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
648	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
649	+	TimeUnit[] timeUnits = TimeUnit.values();
650	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
651	+	}
652	+
653	+	/**
654	+	* Returns a timeout for use when any value at all will do.
655	+	*/
656	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
657	+
658	+	/**
659	+	* Returns a timeout that means "no waiting", i.e. not positive.
660	+	*/
661	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
662	+
663	+	/**
664	+	* Returns a random non-null TimeUnit.
665	+	*/
666	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
667	+
668		/**
669		* Returns the shortest timed delay. This can be scaled up for
670		* slow machines using the jsr166.delay.factor system property,
#	Line 1083 | Line 1110 | public class JSR166TestCase extends Test
1110		}
1111
1112		/**
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	–	/**
1113		* Checks that future.get times out, with the default timeout of
1114		* {@code timeoutMillis()}.
1115		*/
#	Line 1648 | Line 1652 | public class JSR166TestCase extends Test
1652		public String call() { throw new NullPointerException(); }
1653		}
1654
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	–
1655		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1656		protected void realRun() {
1657		try {
#	Line 1678 | Line 1660 | public class JSR166TestCase extends Test
1660		}
1661		}
1662
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	–
1663		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1664		return new CheckedRunnable() {
1665		protected void realRun() {
#	Line 1706 | Line 1669 | public class JSR166TestCase extends Test
1669		}};
1670		}
1671
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	–
1672		/**
1673		* For use as ThreadFactory in constructors
1674		*/
#	Line 1735 | Line 1682 | public class JSR166TestCase extends Test
1682		boolean isDone();
1683		}
1684
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	–
1685		public static class TrackedNoOpRunnable implements Runnable {
1686		public volatile boolean done = false;
1687		public void run() {
#	Line 1795 | Line 1689 | public class JSR166TestCase extends Test
1689		}
1690		}
1691
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	–
1692		/**
1693		* Analog of CheckedRunnable for RecursiveAction
1694		*/
#	Line 1872 | Line 1755 | public class JSR166TestCase extends Test
1755		assertEquals(0, q.size());
1756		assertNull(q.peek());
1757		assertNull(q.poll());
1758	<	assertNull(q.poll(0, MILLISECONDS));
1758	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1759		assertEquals(q.toString(), "[]");
1760		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1761		assertFalse(q.iterator().hasNext());
#	Line 2023 | Line 1906 | public class JSR166TestCase extends Test
1906		static <T> void shuffle(T[] array) {
1907		Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1908		}
1909	+
1910	+	/**
1911	+	* Returns the same String as would be returned by {@link
1912	+	* Object#toString}, whether or not the given object's class
1913	+	* overrides toString().
1914	+	*
1915	+	* @see System#identityHashCode
1916	+	*/
1917	+	static String identityString(Object x) {
1918	+	return x.getClass().getName()
1919	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1920	+	}
1921	+
1922	+	// --- Shared assertions for Executor tests ---
1923	+
1924	+	/**
1925	+	* Returns maximum number of tasks that can be submitted to given
1926	+	* pool (with bounded queue) before saturation (when submission
1927	+	* throws RejectedExecutionException).
1928	+	*/
1929	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1930	+	BlockingQueue<Runnable> q = pool.getQueue();
1931	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1932	+	}
1933	+
1934	+	@SuppressWarnings("FutureReturnValueIgnored")
1935	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1936	+	try {
1937	+	e.execute((Runnable) null);
1938	+	shouldThrow();
1939	+	} catch (NullPointerException success) {}
1940	+
1941	+	if (! (e instanceof ExecutorService)) return;
1942	+	ExecutorService es = (ExecutorService) e;
1943	+	try {
1944	+	es.submit((Runnable) null);
1945	+	shouldThrow();
1946	+	} catch (NullPointerException success) {}
1947	+	try {
1948	+	es.submit((Runnable) null, Boolean.TRUE);
1949	+	shouldThrow();
1950	+	} catch (NullPointerException success) {}
1951	+	try {
1952	+	es.submit((Callable) null);
1953	+	shouldThrow();
1954	+	} catch (NullPointerException success) {}
1955	+
1956	+	if (! (e instanceof ScheduledExecutorService)) return;
1957	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1958	+	try {
1959	+	ses.schedule((Runnable) null,
1960	+	randomTimeout(), randomTimeUnit());
1961	+	shouldThrow();
1962	+	} catch (NullPointerException success) {}
1963	+	try {
1964	+	ses.schedule((Callable) null,
1965	+	randomTimeout(), randomTimeUnit());
1966	+	shouldThrow();
1967	+	} catch (NullPointerException success) {}
1968	+	try {
1969	+	ses.scheduleAtFixedRate((Runnable) null,
1970	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1971	+	shouldThrow();
1972	+	} catch (NullPointerException success) {}
1973	+	try {
1974	+	ses.scheduleWithFixedDelay((Runnable) null,
1975	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1976	+	shouldThrow();
1977	+	} catch (NullPointerException success) {}
1978	+	}
1979	+
1980	+	void setRejectedExecutionHandler(
1981	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1982	+	p.setRejectedExecutionHandler(handler);
1983	+	assertSame(handler, p.getRejectedExecutionHandler());
1984	+	}
1985	+
1986	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1987	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1988	+	final long savedTaskCount = p.getTaskCount();
1989	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1990	+	final int savedQueueSize = p.getQueue().size();
1991	+	final boolean stock = (p.getClass().getClassLoader() == null);
1992	+
1993	+	Runnable r = () -> {};
1994	+	Callable<Boolean> c = () -> Boolean.TRUE;
1995	+
1996	+	class Recorder implements RejectedExecutionHandler {
1997	+	public volatile Runnable r = null;
1998	+	public volatile ThreadPoolExecutor p = null;
1999	+	public void reset() { r = null; p = null; }
2000	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2001	+	assertNull(this.r);
2002	+	assertNull(this.p);
2003	+	this.r = r;
2004	+	this.p = p;
2005	+	}
2006	+	}
2007	+
2008	+	// check custom handler is invoked exactly once per task
2009	+	Recorder recorder = new Recorder();
2010	+	setRejectedExecutionHandler(p, recorder);
2011	+	for (int i = 2; i--> 0; ) {
2012	+	recorder.reset();
2013	+	p.execute(r);
2014	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2015	+	assertSame(r, recorder.r);
2016	+	assertSame(p, recorder.p);
2017	+
2018	+	recorder.reset();
2019	+	assertFalse(p.submit(r).isDone());
2020	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2021	+	assertSame(p, recorder.p);
2022	+
2023	+	recorder.reset();
2024	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2025	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2026	+	assertSame(p, recorder.p);
2027	+
2028	+	recorder.reset();
2029	+	assertFalse(p.submit(c).isDone());
2030	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2031	+	assertSame(p, recorder.p);
2032	+
2033	+	if (p instanceof ScheduledExecutorService) {
2034	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2035	+	ScheduledFuture<?> future;
2036	+
2037	+	recorder.reset();
2038	+	future = s.schedule(r, 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.schedule(c, randomTimeout(), randomTimeUnit());
2045	+	assertFalse(future.isDone());
2046	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2047	+	assertSame(p, recorder.p);
2048	+
2049	+	recorder.reset();
2050	+	future = s.scheduleAtFixedRate(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	+	recorder.reset();
2056	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2057	+	assertFalse(future.isDone());
2058	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2059	+	assertSame(p, recorder.p);
2060	+	}
2061	+	}
2062	+
2063	+	// Checking our custom handler above should be sufficient, but
2064	+	// we add some integration tests of standard handlers.
2065	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2066	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2067	+
2068	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2069	+	try {
2070	+	p.execute(setThread);
2071	+	shouldThrow();
2072	+	} catch (RejectedExecutionException success) {}
2073	+	assertNull(thread.get());
2074	+
2075	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2076	+	p.execute(setThread);
2077	+	assertNull(thread.get());
2078	+
2079	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2080	+	p.execute(setThread);
2081	+	if (p.isShutdown())
2082	+	assertNull(thread.get());
2083	+	else
2084	+	assertSame(Thread.currentThread(), thread.get());
2085	+
2086	+	setRejectedExecutionHandler(p, savedHandler);
2087	+
2088	+	// check that pool was not perturbed by handlers
2089	+	assertEquals(savedTaskCount, p.getTaskCount());
2090	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2091	+	assertEquals(savedQueueSize, p.getQueue().size());
2092	+	}
2093		}

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