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

Comparing jsr166/src/test/tck/FutureTaskTest.java (file contents):
Revision 1.14 by jsr166, Mon Nov 16 05:30:07 2009 UTC vs.
Revision 1.25 by dl, Fri May 6 11:22:07 2011 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
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10		import java.util.concurrent.*;
11	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
12	+	import static java.util.concurrent.TimeUnit.SECONDS;
13		import java.util.*;
14
15		public class FutureTaskTest extends JSR166TestCase {
16
17		public static void main(String[] args) {
18	<	junit.textui.TestRunner.run (suite());
18	>	junit.textui.TestRunner.run(suite());
19		}
20		public static Test suite() {
21	<	return new TestSuite(FutureTaskTest.class);
21	>	return new TestSuite(FutureTaskTest.class);
22	>	}
23	>
24	>	void checkNotDone(Future<?> f) {
25	>	assertFalse(f.isDone());
26	>	assertFalse(f.isCancelled());
27	>	}
28	>
29	>	<T> void checkCompletedNormally(Future<T> f, T expected) {
30	>	assertTrue(f.isDone());
31	>	assertFalse(f.isCancelled());
32	>
33	>	try {
34	>	assertSame(expected, f.get());
35	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
36	>	try {
37	>	assertSame(expected, f.get(5L, SECONDS));
38	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
39	>
40	>	assertFalse(f.cancel(false));
41	>	assertFalse(f.cancel(true));
42	>	}
43	>
44	>	void checkCancelled(Future<?> f) {
45	>	assertTrue(f.isDone());
46	>	assertTrue(f.isCancelled());
47	>
48	>	try {
49	>	f.get();
50	>	shouldThrow();
51	>	} catch (CancellationException success) {
52	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
53	>
54	>	try {
55	>	f.get(5L, SECONDS);
56	>	shouldThrow();
57	>	} catch (CancellationException success) {
58	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
59	>
60	>	assertFalse(f.cancel(false));
61	>	assertFalse(f.cancel(true));
62	>	}
63	>
64	>	void checkCompletedAbnormally(Future<?> f, Throwable t) {
65	>	assertTrue(f.isDone());
66	>	assertFalse(f.isCancelled());
67	>
68	>	try {
69	>	f.get();
70	>	shouldThrow();
71	>	} catch (ExecutionException success) {
72	>	assertSame(t, success.getCause());
73	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
74	>
75	>	try {
76	>	f.get(5L, SECONDS);
77	>	shouldThrow();
78	>	} catch (ExecutionException success) {
79	>	assertSame(t, success.getCause());
80	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	>
82	>	assertFalse(f.cancel(false));
83	>	assertFalse(f.cancel(true));
84		}
85
86		/**
#	Line 36 | Line 100 | public class FutureTaskTest extends JSR1
100		try {
101		FutureTask task = new FutureTask(null);
102		shouldThrow();
103	<	}
40	<	catch (NullPointerException success) {
41	<	}
103	>	} catch (NullPointerException success) {}
104		}
105
106		/**
#	Line 48 | Line 110 | public class FutureTaskTest extends JSR1
110		try {
111		FutureTask task = new FutureTask(null, Boolean.TRUE);
112		shouldThrow();
113	<	}
52	<	catch (NullPointerException success) {
53	<	}
113	>	} catch (NullPointerException success) {}
114		}
115
116		/**
117		* isDone is true when a task completes
118		*/
119		public void testIsDone() {
120	<	FutureTask task = new FutureTask( new NoOpCallable());
121	<	task.run();
122	<	assertTrue(task.isDone());
123	<	assertFalse(task.isCancelled());
120	>	FutureTask task = new FutureTask(new NoOpCallable());
121	>	task.run();
122	>	assertTrue(task.isDone());
123	>	checkCompletedNormally(task, Boolean.TRUE);
124		}
125
126		/**
#	Line 68 | Line 128 | public class FutureTaskTest extends JSR1
128		*/
129		public void testRunAndReset() {
130		PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
131	<	assertTrue(task.runAndReset());
132	<	assertFalse(task.isDone());
131	>	assertTrue(task.runAndReset());
132	>	checkNotDone(task);
133		}
134
135		/**
#	Line 78 | Line 138 | public class FutureTaskTest extends JSR1
138		public void testResetAfterCancel() {
139		PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
140		assertTrue(task.cancel(false));
141	<	assertFalse(task.runAndReset());
142	<	assertTrue(task.isDone());
83	<	assertTrue(task.isCancelled());
141	>	assertFalse(task.runAndReset());
142	>	checkCancelled(task);
143		}
144
145
87	–
146		/**
147		* setting value causes get to return it
148		*/
149	<	public void testSet() {
149	>	public void testSet() throws Exception {
150		PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
151		task.set(one);
152	<	try {
153	<	assertEquals(task.get(), one);
96	<	}
97	<	catch (Exception e) {
98	<	unexpectedException();
99	<	}
152	>	assertSame(task.get(), one);
153	>	checkCompletedNormally(task, one);
154		}
155
156		/**
157		* setException causes get to throw ExecutionException
158		*/
159	<	public void testSetException() {
159	>	public void testSetException() throws Exception {
160		Exception nse = new NoSuchElementException();
161		PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
162		task.setException(nse);
163		try {
164		Object x = task.get();
165		shouldThrow();
166	<	}
167	<	catch (ExecutionException ee) {
168	<	Throwable cause = ee.getCause();
115	<	assertEquals(cause, nse);
116	<	}
117	<	catch (Exception e) {
118	<	unexpectedException();
166	>	} catch (ExecutionException success) {
167	>	assertSame(success.getCause(), nse);
168	>	checkCompletedAbnormally(task, nse);
169		}
170		}
171
172		/**
173	<	*  Cancelling before running succeeds
173	>	* Cancelling before running succeeds
174		*/
175		public void testCancelBeforeRun() {
176	<	FutureTask task = new FutureTask( new NoOpCallable());
176	>	FutureTask task = new FutureTask(new NoOpCallable());
177		assertTrue(task.cancel(false));
178	<	task.run();
179	<	assertTrue(task.isDone());
130	<	assertTrue(task.isCancelled());
178	>	task.run();
179	>	checkCancelled(task);
180		}
181
182		/**
183		* Cancel(true) before run succeeds
184		*/
185		public void testCancelBeforeRun2() {
186	<	FutureTask task = new FutureTask( new NoOpCallable());
186	>	FutureTask task = new FutureTask(new NoOpCallable());
187		assertTrue(task.cancel(true));
188	<	task.run();
189	<	assertTrue(task.isDone());
141	<	assertTrue(task.isCancelled());
188	>	task.run();
189	>	checkCancelled(task);
190		}
191
192		/**
193		* cancel of a completed task fails
194		*/
195		public void testCancelAfterRun() {
196	<	FutureTask task = new FutureTask( new NoOpCallable());
197	<	task.run();
196	>	FutureTask task = new FutureTask(new NoOpCallable());
197	>	task.run();
198		assertFalse(task.cancel(false));
199	<	assertTrue(task.isDone());
152	<	assertFalse(task.isCancelled());
199	>	checkCompletedNormally(task, Boolean.TRUE);
200		}
201
202		/**
203		* cancel(true) interrupts a running task
204		*/
205	<	public void testCancelInterrupt() {
206	<	FutureTask task = new FutureTask( new Callable() {
207	<	public Object call() {
208	<	try {
209	<	Thread.sleep(MEDIUM_DELAY_MS);
210	<	threadShouldThrow();
205	>	public void testCancelInterrupt() throws InterruptedException {
206	>	final CountDownLatch threadStarted = new CountDownLatch(1);
207	>	final FutureTask task =
208	>	new FutureTask(new CheckedCallable<Object>() {
209	>	public Object realCall() {
210	>	threadStarted.countDown();
211	>	long t0 = System.nanoTime();
212	>	for (;;) {
213	>	if (Thread.interrupted())
214	>	return Boolean.TRUE;
215	>	if (millisElapsedSince(t0) > MEDIUM_DELAY_MS)
216	>	fail("interrupt not delivered");
217	>	Thread.yield();
218		}
219	<	catch (InterruptedException success) {}
166	<	return Boolean.TRUE;
167	<	} });
168	<	Thread t = new  Thread(task);
169	<	t.start();
219	>	}});
220
221	<	try {
222	<	Thread.sleep(SHORT_DELAY_MS);
223	<	assertTrue(task.cancel(true));
224	<	t.join();
225	<	assertTrue(task.isDone());
226	<	assertTrue(task.isCancelled());
177	<	} catch (InterruptedException e) {
178	<	unexpectedException();
179	<	}
221	>	Thread t = newStartedThread(task);
222	>	threadStarted.await();
223	>	assertTrue(task.cancel(true));
224	>	checkCancelled(task);
225	>	awaitTermination(t, MEDIUM_DELAY_MS);
226	>	checkCancelled(task);
227		}
228
182	–
229		/**
230		* cancel(false) does not interrupt a running task
231		*/
232	<	public void testCancelNoInterrupt() {
233	<	FutureTask task = new FutureTask( new Callable() {
234	<	public Object call() {
235	<	try {
236	<	Thread.sleep(MEDIUM_DELAY_MS);
237	<	}
238	<	catch (InterruptedException success) {
239	<	threadFail("should not interrupt");
240	<	}
232	>	public void testCancelNoInterrupt() throws InterruptedException {
233	>	final CountDownLatch threadStarted = new CountDownLatch(1);
234	>	final CountDownLatch cancelled = new CountDownLatch(1);
235	>	final FutureTask<Boolean> task =
236	>	new FutureTask<Boolean>(new CheckedCallable<Boolean>() {
237	>	public Boolean realCall() throws InterruptedException {
238	>	threadStarted.countDown();
239	>	cancelled.await(MEDIUM_DELAY_MS, MILLISECONDS);
240	>	assertFalse(Thread.interrupted());
241		return Boolean.TRUE;
242	<	} });
197	<	Thread t = new  Thread(task);
198	<	t.start();
242	>	}});
243
244	<	try {
245	<	Thread.sleep(SHORT_DELAY_MS);
246	<	assertTrue(task.cancel(false));
247	<	t.join();
248	<	assertTrue(task.isDone());
249	<	assertTrue(task.isCancelled());
250	<	} catch (InterruptedException e) {
207	<	unexpectedException();
208	<	}
244	>	Thread t = newStartedThread(task);
245	>	threadStarted.await();
246	>	assertTrue(task.cancel(false));
247	>	checkCancelled(task);
248	>	cancelled.countDown();
249	>	awaitTermination(t, MEDIUM_DELAY_MS);
250	>	checkCancelled(task);
251		}
252
253		/**
254	<	* set in one thread causes get in another thread to retrieve value
254	>	* run in one thread causes get in another thread to retrieve value
255		*/
256	<	public void testGet1() {
257	<	final FutureTask ft = new FutureTask(new Callable() {
258	<	public Object call() {
259	<	try {
260	<	Thread.sleep(MEDIUM_DELAY_MS);
261	<	} catch (InterruptedException e) {
220	<	threadUnexpectedException();
221	<	}
256	>	public void testGetRun() throws InterruptedException {
257	>	final CountDownLatch threadStarted = new CountDownLatch(1);
258	>
259	>	final FutureTask task =
260	>	new FutureTask(new CheckedCallable<Object>() {
261	>	public Object realCall() throws InterruptedException {
262		return Boolean.TRUE;
263	<	}
224	<	});
225	<	Thread t = new Thread(new Runnable() {
226	<	public void run() {
227	<	try {
228	<	ft.get();
229	<	} catch (Exception e) {
230	<	threadUnexpectedException();
231	<	}
232	<	}
233	<	});
234	<	try {
235	<	assertFalse(ft.isDone());
236	<	assertFalse(ft.isCancelled());
237	<	t.start();
238	<	Thread.sleep(SHORT_DELAY_MS);
239	<	ft.run();
240	<	t.join();
241	<	assertTrue(ft.isDone());
242	<	assertFalse(ft.isCancelled());
243	<	} catch (InterruptedException e) {
244	<	unexpectedException();
263	>	}});
264
265	<	}
265	>	Thread t = newStartedThread(new CheckedRunnable() {
266	>	public void realRun() throws Exception {
267	>	threadStarted.countDown();
268	>	assertSame(Boolean.TRUE, task.get());
269	>	}});
270	>
271	>	threadStarted.await();
272	>	checkNotDone(task);
273	>	assertTrue(t.isAlive());
274	>	task.run();
275	>	checkCompletedNormally(task, Boolean.TRUE);
276	>	awaitTermination(t, MEDIUM_DELAY_MS);
277		}
278
279		/**
280	<	* set in one thread causes timed get in another thread to retrieve value
280	>	* set in one thread causes get in another thread to retrieve value
281		*/
282	<	public void testTimedGet1() {
283	<	final FutureTask ft = new FutureTask(new Callable() {
284	<	public Object call() {
285	<	try {
286	<	Thread.sleep(MEDIUM_DELAY_MS);
287	<	} catch (InterruptedException e) {
258	<	threadUnexpectedException();
259	<	}
282	>	public void testGetSet() throws InterruptedException {
283	>	final CountDownLatch threadStarted = new CountDownLatch(1);
284	>
285	>	final PublicFutureTask task =
286	>	new PublicFutureTask(new CheckedCallable<Object>() {
287	>	public Object realCall() throws InterruptedException {
288		return Boolean.TRUE;
289	<	}
262	<	});
263	<	Thread t = new Thread(new Runnable() {
264	<	public void run() {
265	<	try {
266	<	ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
267	<	} catch (TimeoutException success) {
268	<	} catch (Exception e) {
269	<	threadUnexpectedException();
270	<	}
271	<	}
272	<	});
273	<	try {
274	<	assertFalse(ft.isDone());
275	<	assertFalse(ft.isCancelled());
276	<	t.start();
277	<	ft.run();
278	<	t.join();
279	<	assertTrue(ft.isDone());
280	<	assertFalse(ft.isCancelled());
281	<	} catch (InterruptedException e) {
282	<	unexpectedException();
289	>	}});
290
291	<	}
291	>	Thread t = newStartedThread(new CheckedRunnable() {
292	>	public void realRun() throws Exception {
293	>	threadStarted.countDown();
294	>	assertSame(Boolean.FALSE, task.get());
295	>	}});
296	>
297	>	threadStarted.await();
298	>	checkNotDone(task);
299	>	assertTrue(t.isAlive());
300	>	task.set(Boolean.FALSE);
301	>	checkCompletedNormally(task, Boolean.FALSE);
302	>	awaitTermination(t, MEDIUM_DELAY_MS);
303		}
304
305		/**
306	<	*  Cancelling a task causes timed get in another thread to throw CancellationException
306	>	* run in one thread causes timed get in another thread to retrieve value
307		*/
308	<	public void testTimedGet_Cancellation() {
309	<	final FutureTask ft = new FutureTask(new Callable() {
310	<	public Object call() {
311	<	try {
312	<	Thread.sleep(SMALL_DELAY_MS);
313	<	threadShouldThrow();
314	<	} catch (InterruptedException e) {
315	<	}
316	<	return Boolean.TRUE;
317	<	}
318	<	});
319	<	try {
320	<	Thread t1 = new Thread(new Runnable() {
321	<	public void run() {
322	<	try {
323	<	ft.get(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
324	<	threadShouldThrow();
325	<	} catch (CancellationException success) {}
326	<	catch (Exception e) {
327	<	threadUnexpectedException();
328	<	}
329	<	}
312	<	});
313	<	Thread t2 = new Thread(ft);
314	<	t1.start();
315	<	t2.start();
316	<	Thread.sleep(SHORT_DELAY_MS);
317	<	ft.cancel(true);
318	<	t1.join();
319	<	t2.join();
320	<	} catch (InterruptedException ie) {
321	<	unexpectedException();
322	<	}
308	>	public void testTimedGetRun() throws InterruptedException {
309	>	final CountDownLatch threadStarted = new CountDownLatch(1);
310	>
311	>	final FutureTask task =
312	>	new FutureTask(new CheckedCallable<Object>() {
313	>	public Object realCall() throws InterruptedException {
314	>	return Boolean.TRUE;
315	>	}});
316	>
317	>	Thread t = newStartedThread(new CheckedRunnable() {
318	>	public void realRun() throws Exception {
319	>	threadStarted.countDown();
320	>	assertSame(Boolean.TRUE,
321	>	task.get(MEDIUM_DELAY_MS, MILLISECONDS));
322	>	}});
323	>
324	>	threadStarted.await();
325	>	checkNotDone(task);
326	>	assertTrue(t.isAlive());
327	>	task.run();
328	>	checkCompletedNormally(task, Boolean.TRUE);
329	>	awaitTermination(t, MEDIUM_DELAY_MS);
330		}
331
332		/**
333	<	* Cancelling a task causes get in another thread to throw CancellationException
333	>	* set in one thread causes timed get in another thread to retrieve value
334		*/
335	<	public void testGet_Cancellation() {
336	<	final FutureTask ft = new FutureTask(new Callable() {
337	<	public Object call() {
338	<	try {
339	<	Thread.sleep(MEDIUM_DELAY_MS);
340	<	threadShouldThrow();
334	<	} catch (InterruptedException e) {
335	<	}
335	>	public void testTimedGetSet() throws InterruptedException {
336	>	final CountDownLatch threadStarted = new CountDownLatch(1);
337	>
338	>	final PublicFutureTask task =
339	>	new PublicFutureTask(new CheckedCallable<Object>() {
340	>	public Object realCall() throws InterruptedException {
341		return Boolean.TRUE;
342	<	}
343	<	});
344	<	try {
345	<	Thread t1 = new Thread(new Runnable() {
346	<	public void run() {
347	<	try {
348	<	ft.get();
349	<	threadShouldThrow();
350	<	} catch (CancellationException success) {
351	<	}
352	<	catch (Exception e) {
353	<	threadUnexpectedException();
354	<	}
355	<	}
356	<	});
357	<	Thread t2 = new Thread(ft);
358	<	t1.start();
359	<	t2.start();
360	<	Thread.sleep(SHORT_DELAY_MS);
361	<	ft.cancel(true);
362	<	t1.join();
363	<	t2.join();
364	<	} catch (InterruptedException success) {
365	<	unexpectedException();
366	<	}
342	>	}});
343	>
344	>	Thread t = newStartedThread(new CheckedRunnable() {
345	>	public void realRun() throws Exception {
346	>	threadStarted.countDown();
347	>	assertSame(Boolean.FALSE,
348	>	task.get(MEDIUM_DELAY_MS, MILLISECONDS));
349	>	}});
350	>
351	>	threadStarted.await();
352	>	checkNotDone(task);
353	>	assertTrue(t.isAlive());
354	>	task.set(Boolean.FALSE);
355	>	checkCompletedNormally(task, Boolean.FALSE);
356	>	awaitTermination(t, MEDIUM_DELAY_MS);
357	>	}
358	>
359	>	/**
360	>	* Cancelling a task causes timed get in another thread to throw
361	>	* CancellationException
362	>	*/
363	>	public void testTimedGet_Cancellation() throws InterruptedException {
364	>	final CountDownLatch threadStarted = new CountDownLatch(2);
365	>	final FutureTask task =
366	>	new FutureTask(new CheckedInterruptedCallable<Object>() {
367	>	public Object realCall() throws InterruptedException {
368	>	threadStarted.countDown();
369	>	delay(LONG_DELAY_MS);
370	>	return Boolean.TRUE;
371	>	}});
372	>
373	>	Thread t1 = new ThreadShouldThrow(CancellationException.class) {
374	>	public void realRun() throws Exception {
375	>	threadStarted.countDown();
376	>	task.get(MEDIUM_DELAY_MS, MILLISECONDS);
377	>	}};
378	>	Thread t2 = new Thread(task);
379	>	t1.start();
380	>	t2.start();
381	>	threadStarted.await();
382	>	task.cancel(true);
383	>	awaitTermination(t1, MEDIUM_DELAY_MS);
384	>	awaitTermination(t2, MEDIUM_DELAY_MS);
385	>	checkCancelled(task);
386	>	}
387	>
388	>	/**
389	>	* Cancelling a task causes get in another thread to throw
390	>	* CancellationException
391	>	*/
392	>	public void testGet_Cancellation() throws InterruptedException {
393	>	final CountDownLatch threadStarted = new CountDownLatch(2);
394	>	final FutureTask task =
395	>	new FutureTask(new CheckedInterruptedCallable<Object>() {
396	>	public Object realCall() throws InterruptedException {
397	>	threadStarted.countDown();
398	>	delay(LONG_DELAY_MS);
399	>	return Boolean.TRUE;
400	>	}});
401	>
402	>	Thread t1 = new ThreadShouldThrow(CancellationException.class) {
403	>	public void realRun() throws Exception {
404	>	threadStarted.countDown();
405	>	task.get();
406	>	}};
407	>	Thread t2 = new Thread(task);
408	>	t1.start();
409	>	t2.start();
410	>	threadStarted.await();
411	>	task.cancel(true);
412	>	awaitTermination(t1, MEDIUM_DELAY_MS);
413	>	awaitTermination(t2, MEDIUM_DELAY_MS);
414	>	checkCancelled(task);
415		}
416
417
418		/**
419		* A runtime exception in task causes get to throw ExecutionException
420		*/
421	<	public void testGet_ExecutionException() {
422	<	final FutureTask ft = new FutureTask(new Callable() {
423	<	public Object call() {
424	<	int i = 5/0;
425	<	return Boolean.TRUE;
426	<	}
427	<	});
428	<	try {
429	<	ft.run();
430	<	ft.get();
431	<	shouldThrow();
432	<	} catch (ExecutionException success) {
421	>	public void testGet_ExecutionException() throws InterruptedException {
422	>	final FutureTask task = new FutureTask(new Callable() {
423	>	public Object call() {
424	>	return 5/0;
425	>	}});
426	>
427	>	task.run();
428	>	try {
429	>	task.get();
430	>	shouldThrow();
431	>	} catch (ExecutionException success) {
432	>	assertTrue(success.getCause() instanceof ArithmeticException);
433	>	checkCompletedAbnormally(task, success.getCause());
434		}
381	–	catch (Exception e) {
382	–	unexpectedException();
383	–	}
435		}
436
437		/**
438	<	*  A runtime exception in task causes timed get to throw ExecutionException
439	<	*/
440	<	public void testTimedGet_ExecutionException2() {
441	<	final FutureTask ft = new FutureTask(new Callable() {
442	<	public Object call() {
443	<	int i = 5/0;
444	<	return Boolean.TRUE;
445	<	}
446	<	});
447	<	try {
448	<	ft.run();
449	<	ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
450	<	shouldThrow();
451	<	} catch (ExecutionException success) {
452	<	} catch (TimeoutException success) { } // unlikely but OK
453	<	catch (Exception e) {
403	<	unexpectedException();
404	<	}
438	>	* A runtime exception in task causes timed get to throw ExecutionException
439	>	*/
440	>	public void testTimedGet_ExecutionException2() throws Exception {
441	>	final FutureTask task = new FutureTask(new Callable() {
442	>	public Object call() {
443	>	return 5/0;
444	>	}});
445	>
446	>	task.run();
447	>	try {
448	>	task.get(SHORT_DELAY_MS, MILLISECONDS);
449	>	shouldThrow();
450	>	} catch (ExecutionException success) {
451	>	assertTrue(success.getCause() instanceof ArithmeticException);
452	>	checkCompletedAbnormally(task, success.getCause());
453	>	}
454		}
455
456
457		/**
458		* Interrupting a waiting get causes it to throw InterruptedException
459		*/
460	<	public void testGet_InterruptedException() {
461	<	final FutureTask ft = new FutureTask(new NoOpCallable());
462	<	Thread t = new Thread(new Runnable() {
463	<	public void run() {
464	<	try {
465	<	ft.get();
466	<	threadShouldThrow();
467	<	} catch (InterruptedException success) {
468	<	} catch (Exception e) {
469	<	threadUnexpectedException();
470	<	}
471	<	}
472	<	});
424	<	try {
425	<	t.start();
426	<	Thread.sleep(SHORT_DELAY_MS);
427	<	t.interrupt();
428	<	t.join();
429	<	} catch (Exception e) {
430	<	unexpectedException();
431	<	}
460	>	public void testGet_InterruptedException() throws InterruptedException {
461	>	final CountDownLatch threadStarted = new CountDownLatch(1);
462	>	final FutureTask task = new FutureTask(new NoOpCallable());
463	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
464	>	public void realRun() throws Exception {
465	>	threadStarted.countDown();
466	>	task.get();
467	>	}});
468	>
469	>	threadStarted.await();
470	>	t.interrupt();
471	>	awaitTermination(t, MEDIUM_DELAY_MS);
472	>	checkNotDone(task);
473		}
474
475		/**
476	<	*  Interrupting a waiting timed get causes it to throw InterruptedException
477	<	*/
478	<	public void testTimedGet_InterruptedException2() {
479	<	final FutureTask ft = new FutureTask(new NoOpCallable());
480	<	Thread t = new Thread(new Runnable() {
481	<	public void run() {
482	<	try {
483	<	ft.get(LONG_DELAY_MS,TimeUnit.MILLISECONDS);
484	<	threadShouldThrow();
485	<	} catch (InterruptedException success) {}
486	<	catch (Exception e) {
487	<	threadUnexpectedException();
488	<	}
489	<	}
490	<	});
450	<	try {
451	<	t.start();
452	<	Thread.sleep(SHORT_DELAY_MS);
453	<	t.interrupt();
454	<	t.join();
455	<	} catch (Exception e) {
456	<	unexpectedException();
457	<	}
476	>	* Interrupting a waiting timed get causes it to throw InterruptedException
477	>	*/
478	>	public void testTimedGet_InterruptedException2() throws InterruptedException {
479	>	final CountDownLatch threadStarted = new CountDownLatch(1);
480	>	final FutureTask task = new FutureTask(new NoOpCallable());
481	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
482	>	public void realRun() throws Exception {
483	>	threadStarted.countDown();
484	>	task.get(LONG_DELAY_MS, MILLISECONDS);
485	>	}});
486	>
487	>	threadStarted.await();
488	>	t.interrupt();
489	>	awaitTermination(t, MEDIUM_DELAY_MS);
490	>	checkNotDone(task);
491		}
492
493		/**
494		* A timed out timed get throws TimeoutException
495		*/
496	<	public void testGet_TimeoutException() {
497	<	try {
498	<	FutureTask ft = new FutureTask(new NoOpCallable());
499	<	ft.get(1,TimeUnit.MILLISECONDS);
500	<	shouldThrow();
501	<	} catch (TimeoutException success) {}
469	<	catch (Exception success) {
470	<	unexpectedException();
471	<	}
496	>	public void testGet_TimeoutException() throws Exception {
497	>	try {
498	>	FutureTask task = new FutureTask(new NoOpCallable());
499	>	task.get(1, MILLISECONDS);
500	>	shouldThrow();
501	>	} catch (TimeoutException success) {}
502		}
503
504		}

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