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* Pat Fisher, Mike Judd. |
7 |
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*/ |
8 |
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|
9 |
< |
import junit.framework.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
11 |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.util.ArrayList; |
14 |
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import java.util.List; |
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import java.util.NoSuchElementException; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.FutureTask; |
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import java.util.concurrent.TimeoutException; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
27 |
< |
import static java.util.concurrent.TimeUnit.SECONDS; |
28 |
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import java.util.*; |
26 |
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|
27 |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class FutureTaskTest extends JSR166TestCase { |
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|
45 |
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assertEquals(1, pf.doneCount()); |
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assertFalse(pf.runAndReset()); |
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assertEquals(1, pf.doneCount()); |
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Object r = null; Object exInfo = null; |
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try { |
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r = f.get(); |
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} catch (CancellationException t) { |
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exInfo = CancellationException.class; |
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} catch (ExecutionException t) { |
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exInfo = t.getCause(); |
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} catch (Throwable t) { |
56 |
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threadUnexpectedException(t); |
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} |
58 |
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|
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// Check that run and runAndReset have no effect. |
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int savedRunCount = pf.runCount(); |
43 |
– |
int savedSetCount = pf.setCount(); |
44 |
– |
int savedSetExceptionCount = pf.setExceptionCount(); |
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pf.run(); |
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pf.runAndReset(); |
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assertEquals(savedRunCount, pf.runCount()); |
64 |
< |
assertEquals(savedSetCount, pf.setCount()); |
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< |
assertEquals(savedSetExceptionCount, pf.setExceptionCount()); |
64 |
> |
try { |
65 |
> |
assertSame(r, f.get()); |
66 |
> |
} catch (CancellationException t) { |
67 |
> |
assertSame(exInfo, CancellationException.class); |
68 |
> |
} catch (ExecutionException t) { |
69 |
> |
assertSame(exInfo, t.getCause()); |
70 |
> |
} catch (Throwable t) { |
71 |
> |
threadUnexpectedException(t); |
72 |
> |
} |
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assertTrue(f.isDone()); |
74 |
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} |
75 |
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} |
91 |
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FutureTask ft = (FutureTask<?>) f; |
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// Check that run methods do nothing |
93 |
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ft.run(); |
94 |
< |
if (f instanceof PublicFutureTask) |
95 |
< |
assertFalse(((PublicFutureTask) f).runAndReset()); |
94 |
> |
if (f instanceof PublicFutureTask) { |
95 |
> |
PublicFutureTask pf = (PublicFutureTask) f; |
96 |
> |
int savedRunCount = pf.runCount(); |
97 |
> |
pf.run(); |
98 |
> |
assertFalse(pf.runAndReset()); |
99 |
> |
assertEquals(savedRunCount, pf.runCount()); |
100 |
> |
} |
101 |
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checkNotDone(f); |
102 |
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} |
103 |
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} |
135 |
|
pf.set(new Object()); |
136 |
|
pf.setException(new Error()); |
137 |
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for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
138 |
< |
pf.cancel(true); |
138 |
> |
pf.cancel(mayInterruptIfRunning); |
139 |
|
} |
140 |
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} |
141 |
|
|
486 |
|
final PublicFutureTask task = |
487 |
|
new PublicFutureTask(new Runnable() { |
488 |
|
public void run() { |
489 |
+ |
pleaseCancel.countDown(); |
490 |
|
try { |
462 |
– |
pleaseCancel.countDown(); |
491 |
|
delay(LONG_DELAY_MS); |
492 |
< |
shouldThrow(); |
493 |
< |
} catch (Throwable t) { |
494 |
< |
assertTrue(t instanceof InterruptedException); |
467 |
< |
} |
492 |
> |
threadShouldThrow(); |
493 |
> |
} catch (InterruptedException success) { |
494 |
> |
} catch (Throwable t) { threadUnexpectedException(t); } |
495 |
|
throw new RuntimeException(); |
496 |
|
}}); |
497 |
|
|
809 |
|
} |
810 |
|
} |
811 |
|
|
812 |
+ |
/** |
813 |
+ |
* timed get with most negative timeout works correctly (i.e. no |
814 |
+ |
* underflow bug) |
815 |
+ |
*/ |
816 |
+ |
public void testGet_NegativeInfinityTimeout() throws Exception { |
817 |
+ |
final ExecutorService pool = Executors.newFixedThreadPool(10); |
818 |
+ |
final Runnable nop = new Runnable() { public void run() {}}; |
819 |
+ |
final FutureTask<Void> task = new FutureTask<>(nop, null); |
820 |
+ |
final List<Future<?>> futures = new ArrayList<>(); |
821 |
+ |
Runnable r = new Runnable() { public void run() { |
822 |
+ |
for (long timeout : new long[] { 0L, -1L, Long.MIN_VALUE }) { |
823 |
+ |
try { |
824 |
+ |
task.get(timeout, NANOSECONDS); |
825 |
+ |
shouldThrow(); |
826 |
+ |
} catch (TimeoutException success) { |
827 |
+ |
} catch (Throwable fail) {threadUnexpectedException(fail);}}}}; |
828 |
+ |
for (int i = 0; i < 10; i++) |
829 |
+ |
futures.add(pool.submit(r)); |
830 |
+ |
try { |
831 |
+ |
joinPool(pool); |
832 |
+ |
for (Future<?> future : futures) |
833 |
+ |
checkCompletedNormally(future, null); |
834 |
+ |
} finally { |
835 |
+ |
task.run(); // last resort to help terminate |
836 |
+ |
} |
837 |
+ |
} |
838 |
+ |
|
839 |
|
} |