ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/FutureTaskTest.java (file contents):
Revision 1.27 by jsr166, Sat Jun 18 14:16:42 2011 UTC vs.
Revision 1.39 by jsr166, Fri Aug 22 03:30:56 2014 UTC

#	Line 10 | Line 10 | import junit.framework.*;
10		import java.util.concurrent.Callable;
11		import java.util.concurrent.CancellationException;
12		import java.util.concurrent.CountDownLatch;
13	+	import java.util.concurrent.ExecutorService;
14	+	import java.util.concurrent.Executors;
15		import java.util.concurrent.ExecutionException;
16		import java.util.concurrent.Future;
17		import java.util.concurrent.FutureTask;
18		import java.util.concurrent.TimeoutException;
19	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
20	<	import static java.util.concurrent.TimeUnit.SECONDS;
19	>	import java.util.concurrent.atomic.AtomicInteger;
20	>	import static java.util.concurrent.TimeUnit.*;
21		import java.util.*;
22
23		public class FutureTaskTest extends JSR166TestCase {
#	Line 27 | Line 29 | public class FutureTaskTest extends JSR1
29		return new TestSuite(FutureTaskTest.class);
30		}
31
32	+	void checkIsDone(Future<?> f) {
33	+	assertTrue(f.isDone());
34	+	assertFalse(f.cancel(false));
35	+	assertFalse(f.cancel(true));
36	+	if (f instanceof PublicFutureTask) {
37	+	PublicFutureTask pf = (PublicFutureTask) f;
38	+	assertEquals(1, pf.doneCount());
39	+	assertFalse(pf.runAndReset());
40	+	assertEquals(1, pf.doneCount());
41	+	Object r = null; Object exInfo = null;
42	+	try {
43	+	r = f.get();
44	+	} catch (CancellationException t) {
45	+	exInfo = CancellationException.class;
46	+	} catch (ExecutionException t) {
47	+	exInfo = t.getCause();
48	+	} catch (Throwable t) {
49	+	threadUnexpectedException(t);
50	+	}
51	+
52	+	// Check that run and runAndReset have no effect.
53	+	int savedRunCount = pf.runCount();
54	+	pf.run();
55	+	pf.runAndReset();
56	+	assertEquals(savedRunCount, pf.runCount());
57	+	try {
58	+	assertSame(r, f.get());
59	+	} catch (CancellationException t) {
60	+	assertSame(exInfo, CancellationException.class);
61	+	} catch (ExecutionException t) {
62	+	assertSame(exInfo, t.getCause());
63	+	} catch (Throwable t) {
64	+	threadUnexpectedException(t);
65	+	}
66	+	assertTrue(f.isDone());
67	+	}
68	+	}
69	+
70		void checkNotDone(Future<?> f) {
71		assertFalse(f.isDone());
72		assertFalse(f.isCancelled());
73	+	if (f instanceof PublicFutureTask) {
74	+	PublicFutureTask pf = (PublicFutureTask) f;
75	+	assertEquals(0, pf.doneCount());
76	+	assertEquals(0, pf.setCount());
77	+	assertEquals(0, pf.setExceptionCount());
78	+	}
79	+	}
80	+
81	+	void checkIsRunning(Future<?> f) {
82	+	checkNotDone(f);
83	+	if (f instanceof FutureTask) {
84	+	FutureTask ft = (FutureTask<?>) f;
85	+	// Check that run methods do nothing
86	+	ft.run();
87	+	if (f instanceof PublicFutureTask) {
88	+	PublicFutureTask pf = (PublicFutureTask) f;
89	+	int savedRunCount = pf.runCount();
90	+	pf.run();
91	+	assertFalse(pf.runAndReset());
92	+	assertEquals(savedRunCount, pf.runCount());
93	+	}
94	+	checkNotDone(f);
95	+	}
96		}
97
98		<T> void checkCompletedNormally(Future<T> f, T expected) {
99	<	assertTrue(f.isDone());
99	>	checkIsDone(f);
100		assertFalse(f.isCancelled());
101
102		try {
#	Line 42 | Line 105 | public class FutureTaskTest extends JSR1
105		try {
106		assertSame(expected, f.get(5L, SECONDS));
107		} catch (Throwable fail) { threadUnexpectedException(fail); }
45	–
46	–	assertFalse(f.cancel(false));
47	–	assertFalse(f.cancel(true));
108		}
109
110		void checkCancelled(Future<?> f) {
111	<	assertTrue(f.isDone());
111	>	checkIsDone(f);
112		assertTrue(f.isCancelled());
113
114		try {
#	Line 62 | Line 122 | public class FutureTaskTest extends JSR1
122		shouldThrow();
123		} catch (CancellationException success) {
124		} catch (Throwable fail) { threadUnexpectedException(fail); }
125	+	}
126
127	<	assertFalse(f.cancel(false));
128	<	assertFalse(f.cancel(true));
127	>	void tryToConfuseDoneTask(PublicFutureTask pf) {
128	>	pf.set(new Object());
129	>	pf.setException(new Error());
130	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
131	>	pf.cancel(true);
132	>	}
133		}
134
135		void checkCompletedAbnormally(Future<?> f, Throwable t) {
136	<	assertTrue(f.isDone());
136	>	checkIsDone(f);
137		assertFalse(f.isCancelled());
138
139		try {
#	Line 84 | Line 149 | public class FutureTaskTest extends JSR1
149		} catch (ExecutionException success) {
150		assertSame(t, success.getCause());
151		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	–
88	–	assertFalse(f.cancel(false));
89	–	assertFalse(f.cancel(true));
152		}
153
154		/**
155		* Subclass to expose protected methods
156		*/
157		static class PublicFutureTask extends FutureTask {
158	<	public PublicFutureTask(Callable r) { super(r); }
159	<	public boolean runAndReset() { return super.runAndReset(); }
160	<	public void set(Object x) { super.set(x); }
161	<	public void setException(Throwable t) { super.setException(t); }
158	>	private final AtomicInteger runCount;
159	>	private final AtomicInteger doneCount = new AtomicInteger(0);
160	>	private final AtomicInteger runAndResetCount = new AtomicInteger(0);
161	>	private final AtomicInteger setCount = new AtomicInteger(0);
162	>	private final AtomicInteger setExceptionCount = new AtomicInteger(0);
163	>	public int runCount() { return runCount.get(); }
164	>	public int doneCount() { return doneCount.get(); }
165	>	public int runAndResetCount() { return runAndResetCount.get(); }
166	>	public int setCount() { return setCount.get(); }
167	>	public int setExceptionCount() { return setExceptionCount.get(); }
168	>
169	>	PublicFutureTask(Runnable runnable) {
170	>	this(runnable, seven);
171	>	}
172	>	PublicFutureTask(Runnable runnable, Object result) {
173	>	this(runnable, result, new AtomicInteger(0));
174	>	}
175	>	private PublicFutureTask(final Runnable runnable, Object result,
176	>	final AtomicInteger runCount) {
177	>	super(new Runnable() {
178	>	public void run() {
179	>	runCount.getAndIncrement();
180	>	runnable.run();
181	>	}}, result);
182	>	this.runCount = runCount;
183	>	}
184	>	PublicFutureTask(Callable callable) {
185	>	this(callable, new AtomicInteger(0));
186	>	}
187	>	private PublicFutureTask(final Callable callable,
188	>	final AtomicInteger runCount) {
189	>	super(new Callable() {
190	>	public Object call() throws Exception {
191	>	runCount.getAndIncrement();
192	>	return callable.call();
193	>	}});
194	>	this.runCount = runCount;
195	>	}
196	>	@Override public void done() {
197	>	assertTrue(isDone());
198	>	doneCount.incrementAndGet();
199	>	super.done();
200	>	}
201	>	@Override public boolean runAndReset() {
202	>	runAndResetCount.incrementAndGet();
203	>	return super.runAndReset();
204	>	}
205	>	@Override public void set(Object x) {
206	>	setCount.incrementAndGet();
207	>	super.set(x);
208	>	}
209	>	@Override public void setException(Throwable t) {
210	>	setExceptionCount.incrementAndGet();
211	>	super.setException(t);
212	>	}
213	>	}
214	>
215	>	class Counter extends CheckedRunnable {
216	>	final AtomicInteger count = new AtomicInteger(0);
217	>	public int get() { return count.get(); }
218	>	public void realRun() {
219	>	count.getAndIncrement();
220	>	}
221		}
222
223		/**
224	<	* Creating a future with a null callable throws NPE
224	>	* creating a future with a null callable throws NullPointerException
225		*/
226		public void testConstructor() {
227		try {
228	<	FutureTask task = new FutureTask(null);
228	>	new FutureTask(null);
229		shouldThrow();
230		} catch (NullPointerException success) {}
231		}
232
233		/**
234	<	* creating a future with null runnable fails
234	>	* creating a future with null runnable throws NullPointerException
235		*/
236		public void testConstructor2() {
237		try {
238	<	FutureTask task = new FutureTask(null, Boolean.TRUE);
238	>	new FutureTask(null, Boolean.TRUE);
239		shouldThrow();
240		} catch (NullPointerException success) {}
241		}
#	Line 123 | Line 244 | public class FutureTaskTest extends JSR1
244		* isDone is true when a task completes
245		*/
246		public void testIsDone() {
247	<	FutureTask task = new FutureTask(new NoOpCallable());
247	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
248	>	assertFalse(task.isDone());
249		task.run();
250		assertTrue(task.isDone());
251		checkCompletedNormally(task, Boolean.TRUE);
252	+	assertEquals(1, task.runCount());
253		}
254
255		/**
#	Line 134 | Line 257 | public class FutureTaskTest extends JSR1
257		*/
258		public void testRunAndReset() {
259		PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
260	<	assertTrue(task.runAndReset());
261	<	checkNotDone(task);
260	>	for (int i = 0; i < 3; i++) {
261	>	assertTrue(task.runAndReset());
262	>	checkNotDone(task);
263	>	assertEquals(i+1, task.runCount());
264	>	assertEquals(i+1, task.runAndResetCount());
265	>	assertEquals(0, task.setCount());
266	>	assertEquals(0, task.setExceptionCount());
267	>	}
268		}
269
270		/**
271		* runAndReset after cancellation fails
272		*/
273	<	public void testResetAfterCancel() {
274	<	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
275	<	assertTrue(task.cancel(false));
276	<	assertFalse(task.runAndReset());
277	<	checkCancelled(task);
273	>	public void testRunAndResetAfterCancel() {
274	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
275	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
276	>	assertTrue(task.cancel(mayInterruptIfRunning));
277	>	for (int i = 0; i < 3; i++) {
278	>	assertFalse(task.runAndReset());
279	>	assertEquals(0, task.runCount());
280	>	assertEquals(i+1, task.runAndResetCount());
281	>	assertEquals(0, task.setCount());
282	>	assertEquals(0, task.setExceptionCount());
283	>	}
284	>	tryToConfuseDoneTask(task);
285	>	checkCancelled(task);
286	>	}
287		}
288
289		/**
#	Line 154 | Line 292 | public class FutureTaskTest extends JSR1
292		public void testSet() throws Exception {
293		PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
294		task.set(one);
295	<	assertSame(task.get(), one);
295	>	for (int i = 0; i < 3; i++) {
296	>	assertSame(one, task.get());
297	>	assertSame(one, task.get(LONG_DELAY_MS, MILLISECONDS));
298	>	assertEquals(1, task.setCount());
299	>	}
300	>	tryToConfuseDoneTask(task);
301		checkCompletedNormally(task, one);
302	+	assertEquals(0, task.runCount());
303		}
304
305		/**
306		* setException causes get to throw ExecutionException
307		*/
308	<	public void testSetException() throws Exception {
308	>	public void testSetException_get() throws Exception {
309		Exception nse = new NoSuchElementException();
310		PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
311		task.setException(nse);
312	+
313		try {
314	<	Object x = task.get();
314	>	task.get();
315		shouldThrow();
316		} catch (ExecutionException success) {
317	<	assertSame(success.getCause(), nse);
317	>	assertSame(nse, success.getCause());
318		checkCompletedAbnormally(task, nse);
319		}
320	+
321	+	try {
322	+	task.get(LONG_DELAY_MS, MILLISECONDS);
323	+	shouldThrow();
324	+	} catch (ExecutionException success) {
325	+	assertSame(nse, success.getCause());
326	+	checkCompletedAbnormally(task, nse);
327	+	}
328	+
329	+	assertEquals(1, task.setExceptionCount());
330	+	assertEquals(0, task.setCount());
331	+	tryToConfuseDoneTask(task);
332	+	checkCompletedAbnormally(task, nse);
333	+	assertEquals(0, task.runCount());
334		}
335
336		/**
337	<	* Cancelling before running succeeds
337	>	* cancel(false) before run succeeds
338		*/
339		public void testCancelBeforeRun() {
340	<	FutureTask task = new FutureTask(new NoOpCallable());
340	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
341		assertTrue(task.cancel(false));
342		task.run();
343	+	assertEquals(0, task.runCount());
344	+	assertEquals(0, task.setCount());
345	+	assertEquals(0, task.setExceptionCount());
346	+	assertTrue(task.isCancelled());
347	+	assertTrue(task.isDone());
348	+	tryToConfuseDoneTask(task);
349	+	assertEquals(0, task.runCount());
350		checkCancelled(task);
351		}
352
353		/**
354	<	* Cancel(true) before run succeeds
354	>	* cancel(true) before run succeeds
355		*/
356		public void testCancelBeforeRun2() {
357	<	FutureTask task = new FutureTask(new NoOpCallable());
357	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
358		assertTrue(task.cancel(true));
359		task.run();
360	+	assertEquals(0, task.runCount());
361	+	assertEquals(0, task.setCount());
362	+	assertEquals(0, task.setExceptionCount());
363	+	assertTrue(task.isCancelled());
364	+	assertTrue(task.isDone());
365	+	tryToConfuseDoneTask(task);
366	+	assertEquals(0, task.runCount());
367		checkCancelled(task);
368		}
369
370		/**
371	<	* cancel of a completed task fails
371	>	* cancel(false) of a completed task fails
372		*/
373		public void testCancelAfterRun() {
374	<	FutureTask task = new FutureTask(new NoOpCallable());
374	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
375		task.run();
376		assertFalse(task.cancel(false));
377	+	assertEquals(1, task.runCount());
378	+	assertEquals(1, task.setCount());
379	+	assertEquals(0, task.setExceptionCount());
380	+	tryToConfuseDoneTask(task);
381		checkCompletedNormally(task, Boolean.TRUE);
382	+	assertEquals(1, task.runCount());
383		}
384
385		/**
386	<	* cancel(true) interrupts a running task
386	>	* cancel(true) of a completed task fails
387		*/
388	<	public void testCancelInterrupt() throws InterruptedException {
389	<	final CountDownLatch threadStarted = new CountDownLatch(1);
390	<	final FutureTask task =
391	<	new FutureTask(new CheckedCallable<Object>() {
392	<	public Object realCall() {
393	<	threadStarted.countDown();
394	<	long t0 = System.nanoTime();
395	<	for (;;) {
396	<	if (Thread.interrupted())
397	<	return Boolean.TRUE;
398	<	if (millisElapsedSince(t0) > MEDIUM_DELAY_MS)
399	<	fail("interrupt not delivered");
400	<	Thread.yield();
401	<	}
388	>	public void testCancelAfterRun2() {
389	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
390	>	task.run();
391	>	assertFalse(task.cancel(true));
392	>	assertEquals(1, task.runCount());
393	>	assertEquals(1, task.setCount());
394	>	assertEquals(0, task.setExceptionCount());
395	>	tryToConfuseDoneTask(task);
396	>	checkCompletedNormally(task, Boolean.TRUE);
397	>	assertEquals(1, task.runCount());
398	>	}
399	>
400	>	/**
401	>	* cancel(true) interrupts a running task that subsequently succeeds
402	>	*/
403	>	public void testCancelInterrupt() {
404	>	final CountDownLatch pleaseCancel = new CountDownLatch(1);
405	>	final PublicFutureTask task =
406	>	new PublicFutureTask(new CheckedRunnable() {
407	>	public void realRun() {
408	>	pleaseCancel.countDown();
409	>	try {
410	>	delay(LONG_DELAY_MS);
411	>	shouldThrow();
412	>	} catch (InterruptedException success) {}
413		}});
414
415		Thread t = newStartedThread(task);
416	<	threadStarted.await();
416	>	await(pleaseCancel);
417		assertTrue(task.cancel(true));
418	<	checkCancelled(task);
419	<	awaitTermination(t, MEDIUM_DELAY_MS);
418	>	assertTrue(task.isCancelled());
419	>	assertTrue(task.isDone());
420	>	awaitTermination(t);
421	>	assertEquals(1, task.runCount());
422	>	assertEquals(1, task.setCount());
423	>	assertEquals(0, task.setExceptionCount());
424	>	tryToConfuseDoneTask(task);
425		checkCancelled(task);
426		}
427
428		/**
429	<	* cancel(false) does not interrupt a running task
429	>	* cancel(true) tries to interrupt a running task, but
430	>	* Thread.interrupt throws (simulating a restrictive security
431	>	* manager)
432		*/
433	<	public void testCancelNoInterrupt() throws InterruptedException {
434	<	final CountDownLatch threadStarted = new CountDownLatch(1);
433	>	public void testCancelInterrupt_ThrowsSecurityException() {
434	>	final CountDownLatch pleaseCancel = new CountDownLatch(1);
435		final CountDownLatch cancelled = new CountDownLatch(1);
436	<	final FutureTask<Boolean> task =
437	<	new FutureTask<Boolean>(new CheckedCallable<Boolean>() {
438	<	public Boolean realCall() throws InterruptedException {
439	<	threadStarted.countDown();
440	<	cancelled.await(MEDIUM_DELAY_MS, MILLISECONDS);
436	>	final PublicFutureTask task =
437	>	new PublicFutureTask(new CheckedRunnable() {
438	>	public void realRun() {
439	>	pleaseCancel.countDown();
440	>	await(cancelled);
441		assertFalse(Thread.interrupted());
246	–	return Boolean.TRUE;
442		}});
443
444	<	Thread t = newStartedThread(task);
445	<	threadStarted.await();
446	<	assertTrue(task.cancel(false));
447	<	checkCancelled(task);
444	>	final Thread t = new Thread(task) {
445	>	// Simulate a restrictive security manager.
446	>	@Override public void interrupt() {
447	>	throw new SecurityException();
448	>	}};
449	>	t.setDaemon(true);
450	>	t.start();
451	>
452	>	await(pleaseCancel);
453	>	try {
454	>	task.cancel(true);
455	>	shouldThrow();
456	>	} catch (SecurityException expected) {}
457	>
458	>	// We failed to deliver the interrupt, but the world retains
459	>	// its sanity, as if we had done task.cancel(false)
460	>	assertTrue(task.isCancelled());
461	>	assertTrue(task.isDone());
462	>	assertEquals(1, task.runCount());
463	>	assertEquals(1, task.doneCount());
464	>	assertEquals(0, task.setCount());
465	>	assertEquals(0, task.setExceptionCount());
466		cancelled.countDown();
467	<	awaitTermination(t, MEDIUM_DELAY_MS);
467	>	awaitTermination(t);
468	>	assertEquals(1, task.setCount());
469	>	assertEquals(0, task.setExceptionCount());
470	>	tryToConfuseDoneTask(task);
471		checkCancelled(task);
472		}
473
474		/**
475	<	* run in one thread causes get in another thread to retrieve value
475	>	* cancel(true) interrupts a running task that subsequently throws
476		*/
477	<	public void testGetRun() throws InterruptedException {
478	<	final CountDownLatch threadStarted = new CountDownLatch(1);
479	<
480	<	final FutureTask task =
481	<	new FutureTask(new CheckedCallable<Object>() {
482	<	public Object realCall() throws InterruptedException {
483	<	return Boolean.TRUE;
477	>	public void testCancelInterrupt_taskFails() {
478	>	final CountDownLatch pleaseCancel = new CountDownLatch(1);
479	>	final PublicFutureTask task =
480	>	new PublicFutureTask(new Runnable() {
481	>	public void run() {
482	>	try {
483	>	pleaseCancel.countDown();
484	>	delay(LONG_DELAY_MS);
485	>	threadShouldThrow();
486	>	} catch (InterruptedException success) {
487	>	} catch (Throwable t) { threadUnexpectedException(t); }
488	>	throw new RuntimeException();
489		}});
490
491	<	Thread t = newStartedThread(new CheckedRunnable() {
492	<	public void realRun() throws Exception {
493	<	threadStarted.countDown();
494	<	assertSame(Boolean.TRUE, task.get());
495	<	}});
496	<
497	<	threadStarted.await();
498	<	checkNotDone(task);
499	<	assertTrue(t.isAlive());
500	<	task.run();
280	<	checkCompletedNormally(task, Boolean.TRUE);
281	<	awaitTermination(t, MEDIUM_DELAY_MS);
491	>	Thread t = newStartedThread(task);
492	>	await(pleaseCancel);
493	>	assertTrue(task.cancel(true));
494	>	assertTrue(task.isCancelled());
495	>	awaitTermination(t);
496	>	assertEquals(1, task.runCount());
497	>	assertEquals(0, task.setCount());
498	>	assertEquals(1, task.setExceptionCount());
499	>	tryToConfuseDoneTask(task);
500	>	checkCancelled(task);
501		}
502
503		/**
504	<	* set in one thread causes get in another thread to retrieve value
504	>	* cancel(false) does not interrupt a running task
505		*/
506	<	public void testGetSet() throws InterruptedException {
507	<	final CountDownLatch threadStarted = new CountDownLatch(1);
508	<
506	>	public void testCancelNoInterrupt() {
507	>	final CountDownLatch pleaseCancel = new CountDownLatch(1);
508	>	final CountDownLatch cancelled = new CountDownLatch(1);
509		final PublicFutureTask task =
510	<	new PublicFutureTask(new CheckedCallable<Object>() {
511	<	public Object realCall() throws InterruptedException {
510	>	new PublicFutureTask(new CheckedCallable<Boolean>() {
511	>	public Boolean realCall() {
512	>	pleaseCancel.countDown();
513	>	await(cancelled);
514	>	assertFalse(Thread.interrupted());
515		return Boolean.TRUE;
516		}});
517
518	<	Thread t = newStartedThread(new CheckedRunnable() {
519	<	public void realRun() throws Exception {
520	<	threadStarted.countDown();
521	<	assertSame(Boolean.FALSE, task.get());
522	<	}});
523	<
524	<	threadStarted.await();
525	<	checkNotDone(task);
526	<	assertTrue(t.isAlive());
527	<	task.set(Boolean.FALSE);
528	<	checkCompletedNormally(task, Boolean.FALSE);
307	<	awaitTermination(t, MEDIUM_DELAY_MS);
518	>	Thread t = newStartedThread(task);
519	>	await(pleaseCancel);
520	>	assertTrue(task.cancel(false));
521	>	assertTrue(task.isCancelled());
522	>	cancelled.countDown();
523	>	awaitTermination(t);
524	>	assertEquals(1, task.runCount());
525	>	assertEquals(1, task.setCount());
526	>	assertEquals(0, task.setExceptionCount());
527	>	tryToConfuseDoneTask(task);
528	>	checkCancelled(task);
529		}
530
531		/**
532	<	* run in one thread causes timed get in another thread to retrieve value
532	>	* run in one thread causes get in another thread to retrieve value
533		*/
534	<	public void testTimedGetRun() throws InterruptedException {
535	<	final CountDownLatch threadStarted = new CountDownLatch(1);
534	>	public void testGetRun() {
535	>	final CountDownLatch pleaseRun = new CountDownLatch(2);
536
537	<	final FutureTask task =
538	<	new FutureTask(new CheckedCallable<Object>() {
539	<	public Object realCall() throws InterruptedException {
540	<	return Boolean.TRUE;
537	>	final PublicFutureTask task =
538	>	new PublicFutureTask(new CheckedCallable<Object>() {
539	>	public Object realCall() {
540	>	return two;
541		}});
542
543	<	Thread t = newStartedThread(new CheckedRunnable() {
543	>	Thread t1 = newStartedThread(new CheckedRunnable() {
544	>	public void realRun() throws Exception {
545	>	pleaseRun.countDown();
546	>	assertSame(two, task.get());
547	>	}});
548	>
549	>	Thread t2 = newStartedThread(new CheckedRunnable() {
550		public void realRun() throws Exception {
551	<	threadStarted.countDown();
552	<	assertSame(Boolean.TRUE,
326	<	task.get(MEDIUM_DELAY_MS, MILLISECONDS));
551	>	pleaseRun.countDown();
552	>	assertSame(two, task.get(2*LONG_DELAY_MS, MILLISECONDS));
553		}});
554
555	<	threadStarted.await();
555	>	await(pleaseRun);
556		checkNotDone(task);
557	<	assertTrue(t.isAlive());
557	>	assertTrue(t1.isAlive());
558	>	assertTrue(t2.isAlive());
559		task.run();
560	<	checkCompletedNormally(task, Boolean.TRUE);
561	<	awaitTermination(t, MEDIUM_DELAY_MS);
560	>	checkCompletedNormally(task, two);
561	>	assertEquals(1, task.runCount());
562	>	assertEquals(1, task.setCount());
563	>	assertEquals(0, task.setExceptionCount());
564	>	awaitTermination(t1);
565	>	awaitTermination(t2);
566	>	tryToConfuseDoneTask(task);
567	>	checkCompletedNormally(task, two);
568		}
569
570		/**
571	<	* set in one thread causes timed get in another thread to retrieve value
571	>	* set in one thread causes get in another thread to retrieve value
572		*/
573	<	public void testTimedGetSet() throws InterruptedException {
574	<	final CountDownLatch threadStarted = new CountDownLatch(1);
573	>	public void testGetSet() {
574	>	final CountDownLatch pleaseSet = new CountDownLatch(2);
575
576		final PublicFutureTask task =
577		new PublicFutureTask(new CheckedCallable<Object>() {
578		public Object realCall() throws InterruptedException {
579	<	return Boolean.TRUE;
579	>	return two;
580		}});
581
582	<	Thread t = newStartedThread(new CheckedRunnable() {
582	>	Thread t1 = newStartedThread(new CheckedRunnable() {
583	>	public void realRun() throws Exception {
584	>	pleaseSet.countDown();
585	>	assertSame(two, task.get());
586	>	}});
587	>
588	>	Thread t2 = newStartedThread(new CheckedRunnable() {
589		public void realRun() throws Exception {
590	<	threadStarted.countDown();
591	<	assertSame(Boolean.FALSE,
353	<	task.get(MEDIUM_DELAY_MS, MILLISECONDS));
590	>	pleaseSet.countDown();
591	>	assertSame(two, task.get(2*LONG_DELAY_MS, MILLISECONDS));
592		}});
593
594	<	threadStarted.await();
594	>	await(pleaseSet);
595		checkNotDone(task);
596	<	assertTrue(t.isAlive());
597	<	task.set(Boolean.FALSE);
598	<	checkCompletedNormally(task, Boolean.FALSE);
599	<	awaitTermination(t, MEDIUM_DELAY_MS);
596	>	assertTrue(t1.isAlive());
597	>	assertTrue(t2.isAlive());
598	>	task.set(two);
599	>	assertEquals(0, task.runCount());
600	>	assertEquals(1, task.setCount());
601	>	assertEquals(0, task.setExceptionCount());
602	>	tryToConfuseDoneTask(task);
603	>	checkCompletedNormally(task, two);
604	>	awaitTermination(t1);
605	>	awaitTermination(t2);
606		}
607
608		/**
609		* Cancelling a task causes timed get in another thread to throw
610		* CancellationException
611		*/
612	<	public void testTimedGet_Cancellation() throws InterruptedException {
613	<	final CountDownLatch threadStarted = new CountDownLatch(2);
370	<	final FutureTask task =
371	<	new FutureTask(new CheckedInterruptedCallable<Object>() {
372	<	public Object realCall() throws InterruptedException {
373	<	threadStarted.countDown();
374	<	delay(LONG_DELAY_MS);
375	<	return Boolean.TRUE;
376	<	}});
377	<
378	<	Thread t1 = new ThreadShouldThrow(CancellationException.class) {
379	<	public void realRun() throws Exception {
380	<	threadStarted.countDown();
381	<	task.get(MEDIUM_DELAY_MS, MILLISECONDS);
382	<	}};
383	<	Thread t2 = new Thread(task);
384	<	t1.start();
385	<	t2.start();
386	<	threadStarted.await();
387	<	task.cancel(true);
388	<	awaitTermination(t1, MEDIUM_DELAY_MS);
389	<	awaitTermination(t2, MEDIUM_DELAY_MS);
390	<	checkCancelled(task);
612	>	public void testTimedGet_Cancellation() {
613	>	testTimedGet_Cancellation(false);
614		}
615	<
616	<	/**
617	<	* Cancelling a task causes get in another thread to throw
618	<	* CancellationException
619	<	*/
620	<	public void testGet_Cancellation() throws InterruptedException {
621	<	final CountDownLatch threadStarted = new CountDownLatch(2);
622	<	final FutureTask task =
623	<	new FutureTask(new CheckedInterruptedCallable<Object>() {
624	<	public Object realCall() throws InterruptedException {
625	<	threadStarted.countDown();
626	<	delay(LONG_DELAY_MS);
627	<	return Boolean.TRUE;
628	<	}});
615	>	public void testTimedGet_Cancellation_interrupt() {
616	>	testTimedGet_Cancellation(true);
617	>	}
618	>	public void testTimedGet_Cancellation(final boolean mayInterruptIfRunning) {
619	>	final CountDownLatch pleaseCancel = new CountDownLatch(3);
620	>	final CountDownLatch cancelled = new CountDownLatch(1);
621	>	final Callable<Object> callable =
622	>	new CheckedCallable<Object>() {
623	>	public Object realCall() throws InterruptedException {
624	>	pleaseCancel.countDown();
625	>	if (mayInterruptIfRunning) {
626	>	try {
627	>	delay(2*LONG_DELAY_MS);
628	>	} catch (InterruptedException success) {}
629	>	} else {
630	>	await(cancelled);
631	>	}
632	>	return two;
633	>	}};
634	>	final PublicFutureTask task = new PublicFutureTask(callable);
635
636		Thread t1 = new ThreadShouldThrow(CancellationException.class) {
637	<	public void realRun() throws Exception {
638	<	threadStarted.countDown();
639	<	task.get();
640	<	}};
641	<	Thread t2 = new Thread(task);
637	>	public void realRun() throws Exception {
638	>	pleaseCancel.countDown();
639	>	task.get();
640	>	}};
641	>	Thread t2 = new ThreadShouldThrow(CancellationException.class) {
642	>	public void realRun() throws Exception {
643	>	pleaseCancel.countDown();
644	>	task.get(2*LONG_DELAY_MS, MILLISECONDS);
645	>	}};
646		t1.start();
647		t2.start();
648	<	threadStarted.await();
649	<	task.cancel(true);
650	<	awaitTermination(t1, MEDIUM_DELAY_MS);
651	<	awaitTermination(t2, MEDIUM_DELAY_MS);
648	>	Thread t3 = newStartedThread(task);
649	>	await(pleaseCancel);
650	>	checkIsRunning(task);
651	>	task.cancel(mayInterruptIfRunning);
652	>	checkCancelled(task);
653	>	awaitTermination(t1);
654	>	awaitTermination(t2);
655	>	cancelled.countDown();
656	>	awaitTermination(t3);
657	>	assertEquals(1, task.runCount());
658	>	assertEquals(1, task.setCount());
659	>	assertEquals(0, task.setExceptionCount());
660	>	tryToConfuseDoneTask(task);
661		checkCancelled(task);
662		}
663
#	Line 423 | Line 665 | public class FutureTaskTest extends JSR1
665		* A runtime exception in task causes get to throw ExecutionException
666		*/
667		public void testGet_ExecutionException() throws InterruptedException {
668	<	final FutureTask task = new FutureTask(new Callable() {
668	>	final ArithmeticException e = new ArithmeticException();
669	>	final PublicFutureTask task = new PublicFutureTask(new Callable() {
670		public Object call() {
671	<	return 5/0;
671	>	throw e;
672		}});
673
674		task.run();
675	+	assertEquals(1, task.runCount());
676	+	assertEquals(0, task.setCount());
677	+	assertEquals(1, task.setExceptionCount());
678		try {
679		task.get();
680		shouldThrow();
681		} catch (ExecutionException success) {
682	<	assertTrue(success.getCause() instanceof ArithmeticException);
682	>	assertSame(e, success.getCause());
683	>	tryToConfuseDoneTask(task);
684		checkCompletedAbnormally(task, success.getCause());
685		}
686		}
#	Line 442 | Line 689 | public class FutureTaskTest extends JSR1
689		* A runtime exception in task causes timed get to throw ExecutionException
690		*/
691		public void testTimedGet_ExecutionException2() throws Exception {
692	<	final FutureTask task = new FutureTask(new Callable() {
692	>	final ArithmeticException e = new ArithmeticException();
693	>	final PublicFutureTask task = new PublicFutureTask(new Callable() {
694		public Object call() {
695	<	return 5/0;
695	>	throw e;
696		}});
697
698		task.run();
699		try {
700	<	task.get(SHORT_DELAY_MS, MILLISECONDS);
700	>	task.get(LONG_DELAY_MS, MILLISECONDS);
701		shouldThrow();
702		} catch (ExecutionException success) {
703	<	assertTrue(success.getCause() instanceof ArithmeticException);
703	>	assertSame(e, success.getCause());
704	>	tryToConfuseDoneTask(task);
705		checkCompletedAbnormally(task, success.getCause());
706		}
707		}
708
709		/**
710	<	* Interrupting a waiting get causes it to throw InterruptedException
710	>	* get is interruptible
711		*/
712	<	public void testGet_InterruptedException() throws InterruptedException {
713	<	final CountDownLatch threadStarted = new CountDownLatch(1);
712	>	public void testGet_interruptible() {
713	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
714		final FutureTask task = new FutureTask(new NoOpCallable());
715	<	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
715	>	Thread t = newStartedThread(new CheckedRunnable() {
716		public void realRun() throws Exception {
717	<	threadStarted.countDown();
718	<	task.get();
717	>	Thread.currentThread().interrupt();
718	>	try {
719	>	task.get();
720	>	shouldThrow();
721	>	} catch (InterruptedException success) {}
722	>	assertFalse(Thread.interrupted());
723	>
724	>	pleaseInterrupt.countDown();
725	>	try {
726	>	task.get();
727	>	shouldThrow();
728	>	} catch (InterruptedException success) {}
729	>	assertFalse(Thread.interrupted());
730		}});
731
732	<	threadStarted.await();
732	>	await(pleaseInterrupt);
733		t.interrupt();
734	<	awaitTermination(t, MEDIUM_DELAY_MS);
734	>	awaitTermination(t);
735		checkNotDone(task);
736		}
737
738		/**
739	<	* Interrupting a waiting timed get causes it to throw InterruptedException
739	>	* timed get is interruptible
740		*/
741	<	public void testTimedGet_InterruptedException2() throws InterruptedException {
742	<	final CountDownLatch threadStarted = new CountDownLatch(1);
741	>	public void testTimedGet_interruptible() {
742	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
743		final FutureTask task = new FutureTask(new NoOpCallable());
744	<	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
744	>	Thread t = newStartedThread(new CheckedRunnable() {
745		public void realRun() throws Exception {
746	<	threadStarted.countDown();
747	<	task.get(LONG_DELAY_MS, MILLISECONDS);
746	>	Thread.currentThread().interrupt();
747	>	try {
748	>	task.get(2*LONG_DELAY_MS, MILLISECONDS);
749	>	shouldThrow();
750	>	} catch (InterruptedException success) {}
751	>	assertFalse(Thread.interrupted());
752	>
753	>	pleaseInterrupt.countDown();
754	>	try {
755	>	task.get(2*LONG_DELAY_MS, MILLISECONDS);
756	>	shouldThrow();
757	>	} catch (InterruptedException success) {}
758	>	assertFalse(Thread.interrupted());
759		}});
760
761	<	threadStarted.await();
761	>	await(pleaseInterrupt);
762		t.interrupt();
763	<	awaitTermination(t, MEDIUM_DELAY_MS);
763	>	awaitTermination(t);
764		checkNotDone(task);
765		}
766
#	Line 497 | Line 768 | public class FutureTaskTest extends JSR1
768		* A timed out timed get throws TimeoutException
769		*/
770		public void testGet_TimeoutException() throws Exception {
771	+	FutureTask task = new FutureTask(new NoOpCallable());
772	+	long startTime = System.nanoTime();
773		try {
774	<	FutureTask task = new FutureTask(new NoOpCallable());
502	<	task.get(1, MILLISECONDS);
774	>	task.get(timeoutMillis(), MILLISECONDS);
775		shouldThrow();
776	<	} catch (TimeoutException success) {}
776	>	} catch (TimeoutException success) {
777	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
778	>	}
779	>	}
780	>
781	>	/**
782	>	* timed get with null TimeUnit throws NullPointerException
783	>	*/
784	>	public void testGet_NullTimeUnit() throws Exception {
785	>	FutureTask task = new FutureTask(new NoOpCallable());
786	>	long[] timeouts = { Long.MIN_VALUE, 0L, Long.MAX_VALUE };
787	>
788	>	for (long timeout : timeouts) {
789	>	try {
790	>	task.get(timeout, null);
791	>	shouldThrow();
792	>	} catch (NullPointerException success) {}
793	>	}
794	>
795	>	task.run();
796	>
797	>	for (long timeout : timeouts) {
798	>	try {
799	>	task.get(timeout, null);
800	>	shouldThrow();
801	>	} catch (NullPointerException success) {}
802	>	}
803	>	}
804	>
805	>	/**
806	>	* timed get with most negative timeout works correctly (i.e. no
807	>	* underflow bug)
808	>	*/
809	>	public void testGet_NegativeInfinityTimeout() throws Exception {
810	>	final ExecutorService pool = Executors.newFixedThreadPool(10);
811	>	final Runnable nop = new Runnable() { public void run() {}};
812	>	final FutureTask<Void> task = new FutureTask<>(nop, null);
813	>	final List<Future<?>> futures = new ArrayList<>();
814	>	Runnable r = new Runnable() { public void run() {
815	>	for (long timeout : new long[] { 0L, -1L, Long.MIN_VALUE }) {
816	>	try {
817	>	task.get(timeout, NANOSECONDS);
818	>	shouldThrow();
819	>	} catch (TimeoutException success) {
820	>	} catch (Throwable fail) {threadUnexpectedException(fail);}}}};
821	>	for (int i = 0; i < 10; i++)
822	>	futures.add(pool.submit(r));
823	>	try {
824	>	joinPool(pool);
825	>	for (Future<?> future : futures)
826	>	checkCompletedNormally(future, null);
827	>	} finally {
828	>	task.run();         // last resort to help terminate
829	>	}
830		}
831
832		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines