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import junit.framework.*; |
import junit.framework.*; |
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import java.util.concurrent.*; |
import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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import java.util.*; |
import java.util.*; |
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public class FutureTaskTest extends JSR166TestCase { |
public class FutureTaskTest extends JSR166TestCase { |
21 |
return new TestSuite(FutureTaskTest.class); |
return new TestSuite(FutureTaskTest.class); |
22 |
} |
} |
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24 |
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void checkNotDone(Future<?> f) { |
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assertFalse(f.isDone()); |
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assertFalse(f.isCancelled()); |
27 |
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} |
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29 |
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<T> void checkCompletedNormally(Future<T> f, T expected) { |
30 |
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assertTrue(f.isDone()); |
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assertFalse(f.isCancelled()); |
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33 |
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try { |
34 |
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assertSame(expected, f.get()); |
35 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
36 |
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try { |
37 |
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assertSame(expected, f.get(5L, SECONDS)); |
38 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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40 |
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assertFalse(f.cancel(false)); |
41 |
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assertFalse(f.cancel(true)); |
42 |
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} |
43 |
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44 |
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void checkCancelled(Future<?> f) { |
45 |
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assertTrue(f.isDone()); |
46 |
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assertTrue(f.isCancelled()); |
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48 |
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try { |
49 |
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f.get(); |
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shouldThrow(); |
51 |
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} catch (CancellationException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
53 |
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54 |
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try { |
55 |
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f.get(5L, SECONDS); |
56 |
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shouldThrow(); |
57 |
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} catch (CancellationException success) { |
58 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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60 |
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assertFalse(f.cancel(false)); |
61 |
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assertFalse(f.cancel(true)); |
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} |
63 |
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64 |
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void checkCompletedAbnormally(Future<?> f, Throwable t) { |
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assertTrue(f.isDone()); |
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assertFalse(f.isCancelled()); |
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68 |
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try { |
69 |
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f.get(); |
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shouldThrow(); |
71 |
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} catch (ExecutionException success) { |
72 |
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assertSame(t, success.getCause()); |
73 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
74 |
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75 |
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try { |
76 |
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f.get(5L, SECONDS); |
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shouldThrow(); |
78 |
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} catch (ExecutionException success) { |
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assertSame(t, success.getCause()); |
80 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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assertFalse(f.cancel(false)); |
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assertFalse(f.cancel(true)); |
84 |
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} |
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|
86 |
/** |
/** |
87 |
* Subclass to expose protected methods |
* Subclass to expose protected methods |
88 |
*/ |
*/ |
100 |
try { |
try { |
101 |
FutureTask task = new FutureTask(null); |
FutureTask task = new FutureTask(null); |
102 |
shouldThrow(); |
shouldThrow(); |
103 |
} |
} catch (NullPointerException success) {} |
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catch (NullPointerException success) { |
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} |
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104 |
} |
} |
105 |
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|
106 |
/** |
/** |
110 |
try { |
try { |
111 |
FutureTask task = new FutureTask(null, Boolean.TRUE); |
FutureTask task = new FutureTask(null, Boolean.TRUE); |
112 |
shouldThrow(); |
shouldThrow(); |
113 |
} |
} catch (NullPointerException success) {} |
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catch (NullPointerException success) { |
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} |
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114 |
} |
} |
115 |
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116 |
/** |
/** |
120 |
FutureTask task = new FutureTask( new NoOpCallable()); |
FutureTask task = new FutureTask( new NoOpCallable()); |
121 |
task.run(); |
task.run(); |
122 |
assertTrue(task.isDone()); |
assertTrue(task.isDone()); |
123 |
assertFalse(task.isCancelled()); |
checkCompletedNormally(task, Boolean.TRUE); |
124 |
} |
} |
125 |
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|
126 |
/** |
/** |
129 |
public void testRunAndReset() { |
public void testRunAndReset() { |
130 |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
131 |
assertTrue(task.runAndReset()); |
assertTrue(task.runAndReset()); |
132 |
assertFalse(task.isDone()); |
checkNotDone(task); |
133 |
} |
} |
134 |
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|
135 |
/** |
/** |
139 |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
140 |
assertTrue(task.cancel(false)); |
assertTrue(task.cancel(false)); |
141 |
assertFalse(task.runAndReset()); |
assertFalse(task.runAndReset()); |
142 |
assertTrue(task.isDone()); |
checkCancelled(task); |
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assertTrue(task.isCancelled()); |
|
143 |
} |
} |
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145 |
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146 |
/** |
/** |
147 |
* setting value causes get to return it |
* setting value causes get to return it |
148 |
*/ |
*/ |
149 |
public void testSet() { |
public void testSet() throws Exception { |
150 |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
151 |
task.set(one); |
task.set(one); |
152 |
try { |
assertSame(task.get(), one); |
153 |
assertEquals(task.get(), one); |
checkCompletedNormally(task, one); |
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} |
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catch (Exception e) { |
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unexpectedException(); |
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} |
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154 |
} |
} |
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156 |
/** |
/** |
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* setException causes get to throw ExecutionException |
* setException causes get to throw ExecutionException |
158 |
*/ |
*/ |
159 |
public void testSetException() { |
public void testSetException() throws Exception { |
160 |
Exception nse = new NoSuchElementException(); |
Exception nse = new NoSuchElementException(); |
161 |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
162 |
task.setException(nse); |
task.setException(nse); |
163 |
try { |
try { |
164 |
Object x = task.get(); |
Object x = task.get(); |
165 |
shouldThrow(); |
shouldThrow(); |
166 |
} |
} catch (ExecutionException success) { |
167 |
catch (ExecutionException ee) { |
assertSame(success.getCause(), nse); |
168 |
Throwable cause = ee.getCause(); |
checkCompletedAbnormally(task, nse); |
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assertEquals(cause, nse); |
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} |
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catch (Exception e) { |
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unexpectedException(); |
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169 |
} |
} |
170 |
} |
} |
171 |
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176 |
FutureTask task = new FutureTask( new NoOpCallable()); |
FutureTask task = new FutureTask( new NoOpCallable()); |
177 |
assertTrue(task.cancel(false)); |
assertTrue(task.cancel(false)); |
178 |
task.run(); |
task.run(); |
179 |
assertTrue(task.isDone()); |
checkCancelled(task); |
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assertTrue(task.isCancelled()); |
|
180 |
} |
} |
181 |
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182 |
/** |
/** |
186 |
FutureTask task = new FutureTask( new NoOpCallable()); |
FutureTask task = new FutureTask( new NoOpCallable()); |
187 |
assertTrue(task.cancel(true)); |
assertTrue(task.cancel(true)); |
188 |
task.run(); |
task.run(); |
189 |
assertTrue(task.isDone()); |
checkCancelled(task); |
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assertTrue(task.isCancelled()); |
|
190 |
} |
} |
191 |
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192 |
/** |
/** |
196 |
FutureTask task = new FutureTask( new NoOpCallable()); |
FutureTask task = new FutureTask( new NoOpCallable()); |
197 |
task.run(); |
task.run(); |
198 |
assertFalse(task.cancel(false)); |
assertFalse(task.cancel(false)); |
199 |
assertTrue(task.isDone()); |
checkCompletedNormally(task, Boolean.TRUE); |
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assertFalse(task.isCancelled()); |
|
200 |
} |
} |
201 |
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|
202 |
/** |
/** |
203 |
* cancel(true) interrupts a running task |
* cancel(true) interrupts a running task |
204 |
*/ |
*/ |
205 |
public void testCancelInterrupt() { |
public void testCancelInterrupt() throws InterruptedException { |
206 |
FutureTask task = new FutureTask( new Callable() { |
final CountDownLatch threadStarted = new CountDownLatch(1); |
207 |
public Object call() { |
final FutureTask task = |
208 |
try { |
new FutureTask(new CheckedCallable<Object>() { |
209 |
Thread.sleep(MEDIUM_DELAY_MS); |
public Object realCall() { |
210 |
threadShouldThrow(); |
threadStarted.countDown(); |
211 |
} |
long t0 = System.nanoTime(); |
212 |
catch (InterruptedException success) {} |
for (;;) { |
213 |
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if (Thread.interrupted()) |
214 |
return Boolean.TRUE; |
return Boolean.TRUE; |
215 |
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if (millisElapsedSince(t0) > MEDIUM_DELAY_MS) |
216 |
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fail("interrupt not delivered"); |
217 |
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Thread.yield(); |
218 |
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} |
219 |
} }); |
} }); |
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Thread t = new Thread(task); |
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t.start(); |
|
220 |
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|
221 |
try { |
Thread t = newStartedThread(task); |
222 |
Thread.sleep(SHORT_DELAY_MS); |
threadStarted.await(); |
223 |
assertTrue(task.cancel(true)); |
assertTrue(task.cancel(true)); |
224 |
t.join(); |
checkCancelled(task); |
225 |
assertTrue(task.isDone()); |
awaitTermination(t, MEDIUM_DELAY_MS); |
226 |
assertTrue(task.isCancelled()); |
checkCancelled(task); |
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} catch (InterruptedException e) { |
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unexpectedException(); |
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} |
|
227 |
} |
} |
228 |
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|
229 |
/** |
/** |
230 |
* cancel(false) does not interrupt a running task |
* cancel(false) does not interrupt a running task |
231 |
*/ |
*/ |
232 |
public void testCancelNoInterrupt() { |
public void testCancelNoInterrupt() throws InterruptedException { |
233 |
FutureTask task = new FutureTask( new Callable() { |
final CountDownLatch threadStarted = new CountDownLatch(1); |
234 |
public Object call() { |
final CountDownLatch cancelled = new CountDownLatch(1); |
235 |
try { |
final FutureTask<Boolean> task = |
236 |
Thread.sleep(MEDIUM_DELAY_MS); |
new FutureTask<Boolean>(new CheckedCallable<Boolean>() { |
237 |
} |
public Boolean realCall() throws InterruptedException { |
238 |
catch (InterruptedException success) { |
threadStarted.countDown(); |
239 |
threadFail("should not interrupt"); |
cancelled.await(MEDIUM_DELAY_MS, MILLISECONDS); |
240 |
} |
assertFalse(Thread.interrupted()); |
241 |
return Boolean.TRUE; |
return Boolean.TRUE; |
242 |
} }); |
} }); |
|
Thread t = new Thread(task); |
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t.start(); |
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243 |
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|
244 |
try { |
Thread t = newStartedThread(task); |
245 |
Thread.sleep(SHORT_DELAY_MS); |
threadStarted.await(); |
246 |
assertTrue(task.cancel(false)); |
assertTrue(task.cancel(false)); |
247 |
t.join(); |
checkCancelled(task); |
248 |
assertTrue(task.isDone()); |
cancelled.countDown(); |
249 |
assertTrue(task.isCancelled()); |
awaitTermination(t, MEDIUM_DELAY_MS); |
250 |
} catch (InterruptedException e) { |
checkCancelled(task); |
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unexpectedException(); |
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} |
|
251 |
} |
} |
252 |
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|
253 |
/** |
/** |
254 |
* set in one thread causes get in another thread to retrieve value |
* set in one thread causes get in another thread to retrieve value |
255 |
*/ |
*/ |
256 |
public void testGet1() { |
public void testGet1() throws InterruptedException { |
257 |
final FutureTask ft = new FutureTask(new Callable() { |
final FutureTask task = |
258 |
public Object call() { |
new FutureTask(new CheckedCallable<Object>() { |
259 |
try { |
public Object realCall() throws InterruptedException { |
|
Thread.sleep(MEDIUM_DELAY_MS); |
|
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} catch (InterruptedException e) { |
|
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threadUnexpectedException(); |
|
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} |
|
260 |
return Boolean.TRUE; |
return Boolean.TRUE; |
261 |
} |
}}); |
262 |
}); |
checkNotDone(task); |
|
Thread t = new Thread(new Runnable() { |
|
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public void run() { |
|
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try { |
|
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ft.get(); |
|
|
} catch (Exception e) { |
|
|
threadUnexpectedException(); |
|
|
} |
|
|
} |
|
|
}); |
|
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try { |
|
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assertFalse(ft.isDone()); |
|
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assertFalse(ft.isCancelled()); |
|
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t.start(); |
|
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Thread.sleep(SHORT_DELAY_MS); |
|
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ft.run(); |
|
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t.join(); |
|
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assertTrue(ft.isDone()); |
|
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assertFalse(ft.isCancelled()); |
|
|
} catch (InterruptedException e) { |
|
|
unexpectedException(); |
|
263 |
|
|
264 |
} |
Thread t = newStartedThread(new CheckedRunnable() { |
265 |
|
public void realRun() throws Exception { |
266 |
|
assertSame(Boolean.TRUE, task.get()); |
267 |
|
}}); |
268 |
|
|
269 |
|
task.run(); |
270 |
|
checkCompletedNormally(task, Boolean.TRUE); |
271 |
|
awaitTermination(t, MEDIUM_DELAY_MS); |
272 |
} |
} |
273 |
|
|
274 |
/** |
/** |
275 |
* set in one thread causes timed get in another thread to retrieve value |
* set in one thread causes timed get in another thread to retrieve value |
276 |
*/ |
*/ |
277 |
public void testTimedGet1() { |
public void testTimedGet1() throws InterruptedException { |
278 |
final FutureTask ft = new FutureTask(new Callable() { |
final FutureTask task = |
279 |
public Object call() { |
new FutureTask(new CheckedCallable<Object>() { |
280 |
try { |
public Object realCall() throws InterruptedException { |
|
Thread.sleep(MEDIUM_DELAY_MS); |
|
|
} catch (InterruptedException e) { |
|
|
threadUnexpectedException(); |
|
|
} |
|
281 |
return Boolean.TRUE; |
return Boolean.TRUE; |
282 |
} |
}}); |
283 |
}); |
checkNotDone(task); |
|
Thread t = new Thread(new Runnable() { |
|
|
public void run() { |
|
|
try { |
|
|
ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
|
|
} catch (TimeoutException success) { |
|
|
} catch (Exception e) { |
|
|
threadUnexpectedException(); |
|
|
} |
|
|
} |
|
|
}); |
|
|
try { |
|
|
assertFalse(ft.isDone()); |
|
|
assertFalse(ft.isCancelled()); |
|
|
t.start(); |
|
|
ft.run(); |
|
|
t.join(); |
|
|
assertTrue(ft.isDone()); |
|
|
assertFalse(ft.isCancelled()); |
|
|
} catch (InterruptedException e) { |
|
|
unexpectedException(); |
|
284 |
|
|
285 |
} |
Thread t = newStartedThread(new CheckedRunnable() { |
286 |
|
public void realRun() throws Exception { |
287 |
|
assertSame(Boolean.TRUE, task.get(SMALL_DELAY_MS, MILLISECONDS)); |
288 |
|
}}); |
289 |
|
|
290 |
|
task.run(); |
291 |
|
checkCompletedNormally(task, Boolean.TRUE); |
292 |
|
awaitTermination(t, MEDIUM_DELAY_MS); |
293 |
} |
} |
294 |
|
|
295 |
/** |
/** |
296 |
* Cancelling a task causes timed get in another thread to throw CancellationException |
* Cancelling a task causes timed get in another thread to throw |
297 |
|
* CancellationException |
298 |
*/ |
*/ |
299 |
public void testTimedGet_Cancellation() { |
public void testTimedGet_Cancellation() throws InterruptedException { |
300 |
final FutureTask ft = new FutureTask(new Callable() { |
final CountDownLatch threadStarted = new CountDownLatch(2); |
301 |
public Object call() { |
final FutureTask task = |
302 |
try { |
new FutureTask(new CheckedInterruptedCallable<Object>() { |
303 |
Thread.sleep(SMALL_DELAY_MS); |
public Object realCall() throws InterruptedException { |
304 |
threadShouldThrow(); |
threadStarted.countDown(); |
305 |
} catch (InterruptedException e) { |
Thread.sleep(LONG_DELAY_MS); |
|
} |
|
306 |
return Boolean.TRUE; |
return Boolean.TRUE; |
307 |
} |
}}); |
308 |
}); |
|
309 |
try { |
Thread t1 = new ThreadShouldThrow(CancellationException.class) { |
310 |
Thread t1 = new Thread(new Runnable() { |
public void realRun() throws Exception { |
311 |
public void run() { |
threadStarted.countDown(); |
312 |
try { |
task.get(MEDIUM_DELAY_MS, MILLISECONDS); |
313 |
ft.get(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
}}; |
314 |
threadShouldThrow(); |
Thread t2 = new Thread(task); |
|
} catch (CancellationException success) {} |
|
|
catch (Exception e) { |
|
|
threadUnexpectedException(); |
|
|
} |
|
|
} |
|
|
}); |
|
|
Thread t2 = new Thread(ft); |
|
315 |
t1.start(); |
t1.start(); |
316 |
t2.start(); |
t2.start(); |
317 |
Thread.sleep(SHORT_DELAY_MS); |
threadStarted.await(); |
318 |
ft.cancel(true); |
task.cancel(true); |
319 |
t1.join(); |
awaitTermination(t1, MEDIUM_DELAY_MS); |
320 |
t2.join(); |
awaitTermination(t2, MEDIUM_DELAY_MS); |
321 |
} catch (InterruptedException ie) { |
checkCancelled(task); |
|
unexpectedException(); |
|
|
} |
|
322 |
} |
} |
323 |
|
|
324 |
/** |
/** |
325 |
* Cancelling a task causes get in another thread to throw CancellationException |
* Cancelling a task causes get in another thread to throw |
326 |
*/ |
* CancellationException |
327 |
public void testGet_Cancellation() { |
*/ |
328 |
final FutureTask ft = new FutureTask(new Callable() { |
public void testGet_Cancellation() throws InterruptedException { |
329 |
public Object call() { |
final CountDownLatch threadStarted = new CountDownLatch(2); |
330 |
try { |
final FutureTask task = |
331 |
Thread.sleep(MEDIUM_DELAY_MS); |
new FutureTask(new CheckedInterruptedCallable<Object>() { |
332 |
threadShouldThrow(); |
public Object realCall() throws InterruptedException { |
333 |
} catch (InterruptedException e) { |
threadStarted.countDown(); |
334 |
} |
Thread.sleep(LONG_DELAY_MS); |
335 |
return Boolean.TRUE; |
return Boolean.TRUE; |
336 |
} |
}}); |
337 |
}); |
|
338 |
try { |
Thread t1 = new ThreadShouldThrow(CancellationException.class) { |
339 |
Thread t1 = new Thread(new Runnable() { |
public void realRun() throws Exception { |
340 |
public void run() { |
threadStarted.countDown(); |
341 |
try { |
task.get(); |
342 |
ft.get(); |
}}; |
343 |
threadShouldThrow(); |
Thread t2 = new Thread(task); |
|
} catch (CancellationException success) { |
|
|
} |
|
|
catch (Exception e) { |
|
|
threadUnexpectedException(); |
|
|
} |
|
|
} |
|
|
}); |
|
|
Thread t2 = new Thread(ft); |
|
344 |
t1.start(); |
t1.start(); |
345 |
t2.start(); |
t2.start(); |
346 |
Thread.sleep(SHORT_DELAY_MS); |
threadStarted.await(); |
347 |
ft.cancel(true); |
task.cancel(true); |
348 |
t1.join(); |
awaitTermination(t1, MEDIUM_DELAY_MS); |
349 |
t2.join(); |
awaitTermination(t2, MEDIUM_DELAY_MS); |
350 |
} catch (InterruptedException success) { |
checkCancelled(task); |
|
unexpectedException(); |
|
|
} |
|
351 |
} |
} |
352 |
|
|
353 |
|
|
354 |
/** |
/** |
355 |
* A runtime exception in task causes get to throw ExecutionException |
* A runtime exception in task causes get to throw ExecutionException |
356 |
*/ |
*/ |
357 |
public void testGet_ExecutionException() { |
public void testGet_ExecutionException() throws InterruptedException { |
358 |
final FutureTask ft = new FutureTask(new Callable() { |
final FutureTask task = new FutureTask(new Callable() { |
359 |
public Object call() { |
public Object call() { |
360 |
int i = 5/0; |
return 5/0; |
361 |
return Boolean.TRUE; |
}}); |
362 |
} |
|
363 |
}); |
task.run(); |
364 |
try { |
try { |
365 |
ft.run(); |
task.get(); |
|
ft.get(); |
|
366 |
shouldThrow(); |
shouldThrow(); |
367 |
} catch (ExecutionException success) { |
} catch (ExecutionException success) { |
368 |
} |
assertTrue(success.getCause() instanceof ArithmeticException); |
369 |
catch (Exception e) { |
checkCompletedAbnormally(task, success.getCause()); |
|
unexpectedException(); |
|
370 |
} |
} |
371 |
} |
} |
372 |
|
|
373 |
/** |
/** |
374 |
* A runtime exception in task causes timed get to throw ExecutionException |
* A runtime exception in task causes timed get to throw ExecutionException |
375 |
*/ |
*/ |
376 |
public void testTimedGet_ExecutionException2() { |
public void testTimedGet_ExecutionException2() throws Exception { |
377 |
final FutureTask ft = new FutureTask(new Callable() { |
final FutureTask task = new FutureTask(new Callable() { |
378 |
public Object call() { |
public Object call() { |
379 |
int i = 5/0; |
return 5/0; |
380 |
return Boolean.TRUE; |
}}); |
381 |
} |
|
382 |
}); |
task.run(); |
383 |
try { |
try { |
384 |
ft.run(); |
task.get(SHORT_DELAY_MS, MILLISECONDS); |
|
ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
|
385 |
shouldThrow(); |
shouldThrow(); |
386 |
} catch (ExecutionException success) { |
} catch (ExecutionException success) { |
387 |
} catch (TimeoutException success) { } // unlikely but OK |
assertTrue(success.getCause() instanceof ArithmeticException); |
388 |
catch (Exception e) { |
checkCompletedAbnormally(task, success.getCause()); |
|
unexpectedException(); |
|
389 |
} |
} |
390 |
} |
} |
391 |
|
|
393 |
/** |
/** |
394 |
* Interrupting a waiting get causes it to throw InterruptedException |
* Interrupting a waiting get causes it to throw InterruptedException |
395 |
*/ |
*/ |
396 |
public void testGet_InterruptedException() { |
public void testGet_InterruptedException() throws InterruptedException { |
397 |
final FutureTask ft = new FutureTask(new NoOpCallable()); |
final CountDownLatch threadStarted = new CountDownLatch(1); |
398 |
Thread t = new Thread(new Runnable() { |
final FutureTask task = new FutureTask(new NoOpCallable()); |
399 |
public void run() { |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
400 |
try { |
public void realRun() throws Exception { |
401 |
ft.get(); |
threadStarted.countDown(); |
402 |
threadShouldThrow(); |
task.get(); |
403 |
} catch (InterruptedException success) { |
}}); |
404 |
} catch (Exception e) { |
|
405 |
threadUnexpectedException(); |
threadStarted.await(); |
|
} |
|
|
} |
|
|
}); |
|
|
try { |
|
|
t.start(); |
|
|
Thread.sleep(SHORT_DELAY_MS); |
|
406 |
t.interrupt(); |
t.interrupt(); |
407 |
t.join(); |
awaitTermination(t, MEDIUM_DELAY_MS); |
408 |
} catch (Exception e) { |
checkNotDone(task); |
|
unexpectedException(); |
|
|
} |
|
409 |
} |
} |
410 |
|
|
411 |
/** |
/** |
412 |
* Interrupting a waiting timed get causes it to throw InterruptedException |
* Interrupting a waiting timed get causes it to throw InterruptedException |
413 |
*/ |
*/ |
414 |
public void testTimedGet_InterruptedException2() { |
public void testTimedGet_InterruptedException2() throws InterruptedException { |
415 |
final FutureTask ft = new FutureTask(new NoOpCallable()); |
final CountDownLatch threadStarted = new CountDownLatch(1); |
416 |
Thread t = new Thread(new Runnable() { |
final FutureTask task = new FutureTask(new NoOpCallable()); |
417 |
public void run() { |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
418 |
try { |
public void realRun() throws Exception { |
419 |
ft.get(LONG_DELAY_MS,TimeUnit.MILLISECONDS); |
threadStarted.countDown(); |
420 |
threadShouldThrow(); |
task.get(LONG_DELAY_MS, MILLISECONDS); |
421 |
} catch (InterruptedException success) {} |
}}); |
422 |
catch (Exception e) { |
|
423 |
threadUnexpectedException(); |
threadStarted.await(); |
|
} |
|
|
} |
|
|
}); |
|
|
try { |
|
|
t.start(); |
|
|
Thread.sleep(SHORT_DELAY_MS); |
|
424 |
t.interrupt(); |
t.interrupt(); |
425 |
t.join(); |
awaitTermination(t, MEDIUM_DELAY_MS); |
426 |
} catch (Exception e) { |
checkNotDone(task); |
|
unexpectedException(); |
|
|
} |
|
427 |
} |
} |
428 |
|
|
429 |
/** |
/** |
430 |
* A timed out timed get throws TimeoutException |
* A timed out timed get throws TimeoutException |
431 |
*/ |
*/ |
432 |
public void testGet_TimeoutException() { |
public void testGet_TimeoutException() throws Exception { |
433 |
try { |
try { |
434 |
FutureTask ft = new FutureTask(new NoOpCallable()); |
FutureTask task = new FutureTask(new NoOpCallable()); |
435 |
ft.get(1,TimeUnit.MILLISECONDS); |
task.get(1, MILLISECONDS); |
436 |
shouldThrow(); |
shouldThrow(); |
437 |
} catch (TimeoutException success) {} |
} catch (TimeoutException success) {} |
|
catch (Exception success) { |
|
|
unexpectedException(); |
|
|
} |
|
438 |
} |
} |
439 |
|
|
440 |
} |
} |