29 |
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import java.util.concurrent.ThreadFactory; |
30 |
|
import java.util.concurrent.ThreadPoolExecutor; |
31 |
|
import java.util.concurrent.TimeUnit; |
32 |
+ |
import java.util.concurrent.atomic.AtomicInteger; |
33 |
|
|
34 |
|
import junit.framework.Test; |
35 |
|
import junit.framework.TestSuite; |
132 |
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*/ |
133 |
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public void testPrestartCoreThread() { |
134 |
|
final ThreadPoolExecutor p = |
135 |
< |
new ThreadPoolExecutor(2, 2, |
135 |
> |
new ThreadPoolExecutor(2, 6, |
136 |
|
LONG_DELAY_MS, MILLISECONDS, |
137 |
|
new ArrayBlockingQueue<Runnable>(10)); |
138 |
< |
assertEquals(0, p.getPoolSize()); |
139 |
< |
assertTrue(p.prestartCoreThread()); |
140 |
< |
assertEquals(1, p.getPoolSize()); |
141 |
< |
assertTrue(p.prestartCoreThread()); |
142 |
< |
assertEquals(2, p.getPoolSize()); |
143 |
< |
assertFalse(p.prestartCoreThread()); |
144 |
< |
assertEquals(2, p.getPoolSize()); |
145 |
< |
joinPool(p); |
138 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
139 |
> |
assertEquals(0, p.getPoolSize()); |
140 |
> |
assertTrue(p.prestartCoreThread()); |
141 |
> |
assertEquals(1, p.getPoolSize()); |
142 |
> |
assertTrue(p.prestartCoreThread()); |
143 |
> |
assertEquals(2, p.getPoolSize()); |
144 |
> |
assertFalse(p.prestartCoreThread()); |
145 |
> |
assertEquals(2, p.getPoolSize()); |
146 |
> |
p.setCorePoolSize(4); |
147 |
> |
assertTrue(p.prestartCoreThread()); |
148 |
> |
assertEquals(3, p.getPoolSize()); |
149 |
> |
assertTrue(p.prestartCoreThread()); |
150 |
> |
assertEquals(4, p.getPoolSize()); |
151 |
> |
assertFalse(p.prestartCoreThread()); |
152 |
> |
assertEquals(4, p.getPoolSize()); |
153 |
> |
} |
154 |
|
} |
155 |
|
|
156 |
|
/** |
158 |
|
*/ |
159 |
|
public void testPrestartAllCoreThreads() { |
160 |
|
final ThreadPoolExecutor p = |
161 |
< |
new ThreadPoolExecutor(2, 2, |
161 |
> |
new ThreadPoolExecutor(2, 6, |
162 |
|
LONG_DELAY_MS, MILLISECONDS, |
163 |
|
new ArrayBlockingQueue<Runnable>(10)); |
164 |
< |
assertEquals(0, p.getPoolSize()); |
165 |
< |
p.prestartAllCoreThreads(); |
166 |
< |
assertEquals(2, p.getPoolSize()); |
167 |
< |
p.prestartAllCoreThreads(); |
168 |
< |
assertEquals(2, p.getPoolSize()); |
169 |
< |
joinPool(p); |
164 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
165 |
> |
assertEquals(0, p.getPoolSize()); |
166 |
> |
p.prestartAllCoreThreads(); |
167 |
> |
assertEquals(2, p.getPoolSize()); |
168 |
> |
p.prestartAllCoreThreads(); |
169 |
> |
assertEquals(2, p.getPoolSize()); |
170 |
> |
p.setCorePoolSize(4); |
171 |
> |
p.prestartAllCoreThreads(); |
172 |
> |
assertEquals(4, p.getPoolSize()); |
173 |
> |
p.prestartAllCoreThreads(); |
174 |
> |
assertEquals(4, p.getPoolSize()); |
175 |
> |
} |
176 |
|
} |
177 |
|
|
178 |
|
/** |
184 |
|
new ThreadPoolExecutor(2, 2, |
185 |
|
LONG_DELAY_MS, MILLISECONDS, |
186 |
|
new ArrayBlockingQueue<Runnable>(10)); |
187 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
188 |
< |
final CountDownLatch threadProceed = new CountDownLatch(1); |
189 |
< |
final CountDownLatch threadDone = new CountDownLatch(1); |
190 |
< |
try { |
187 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
188 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
189 |
> |
final CountDownLatch threadProceed = new CountDownLatch(1); |
190 |
> |
final CountDownLatch threadDone = new CountDownLatch(1); |
191 |
|
assertEquals(0, p.getCompletedTaskCount()); |
192 |
|
p.execute(new CheckedRunnable() { |
193 |
|
public void realRun() throws InterruptedException { |
206 |
|
fail("timed out"); |
207 |
|
Thread.yield(); |
208 |
|
} |
194 |
– |
} finally { |
195 |
– |
joinPool(p); |
209 |
|
} |
210 |
|
} |
211 |
|
|
217 |
|
new ThreadPoolExecutor(1, 1, |
218 |
|
LONG_DELAY_MS, MILLISECONDS, |
219 |
|
new ArrayBlockingQueue<Runnable>(10)); |
220 |
< |
assertEquals(1, p.getCorePoolSize()); |
221 |
< |
joinPool(p); |
220 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
221 |
> |
assertEquals(1, p.getCorePoolSize()); |
222 |
> |
} |
223 |
|
} |
224 |
|
|
225 |
|
/** |
230 |
|
new ThreadPoolExecutor(2, 2, |
231 |
|
1000, MILLISECONDS, |
232 |
|
new ArrayBlockingQueue<Runnable>(10)); |
233 |
< |
assertEquals(1, p.getKeepAliveTime(SECONDS)); |
234 |
< |
joinPool(p); |
233 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
234 |
> |
assertEquals(1, p.getKeepAliveTime(SECONDS)); |
235 |
> |
} |
236 |
|
} |
237 |
|
|
238 |
|
/** |
239 |
|
* getThreadFactory returns factory in constructor if not set |
240 |
|
*/ |
241 |
|
public void testGetThreadFactory() { |
242 |
< |
ThreadFactory tf = new SimpleThreadFactory(); |
242 |
> |
ThreadFactory threadFactory = new SimpleThreadFactory(); |
243 |
|
final ThreadPoolExecutor p = |
244 |
|
new ThreadPoolExecutor(1, 2, |
245 |
|
LONG_DELAY_MS, MILLISECONDS, |
246 |
|
new ArrayBlockingQueue<Runnable>(10), |
247 |
< |
tf, |
247 |
> |
threadFactory, |
248 |
|
new NoOpREHandler()); |
249 |
< |
assertSame(tf, p.getThreadFactory()); |
250 |
< |
joinPool(p); |
249 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
250 |
> |
assertSame(threadFactory, p.getThreadFactory()); |
251 |
> |
} |
252 |
|
} |
253 |
|
|
254 |
|
/** |
259 |
|
new ThreadPoolExecutor(1, 2, |
260 |
|
LONG_DELAY_MS, MILLISECONDS, |
261 |
|
new ArrayBlockingQueue<Runnable>(10)); |
262 |
< |
ThreadFactory tf = new SimpleThreadFactory(); |
263 |
< |
p.setThreadFactory(tf); |
264 |
< |
assertSame(tf, p.getThreadFactory()); |
265 |
< |
joinPool(p); |
262 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
263 |
> |
ThreadFactory threadFactory = new SimpleThreadFactory(); |
264 |
> |
p.setThreadFactory(threadFactory); |
265 |
> |
assertSame(threadFactory, p.getThreadFactory()); |
266 |
> |
} |
267 |
|
} |
268 |
|
|
269 |
|
/** |
274 |
|
new ThreadPoolExecutor(1, 2, |
275 |
|
LONG_DELAY_MS, MILLISECONDS, |
276 |
|
new ArrayBlockingQueue<Runnable>(10)); |
277 |
< |
try { |
278 |
< |
p.setThreadFactory(null); |
279 |
< |
shouldThrow(); |
280 |
< |
} catch (NullPointerException success) { |
281 |
< |
} finally { |
265 |
< |
joinPool(p); |
277 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
278 |
> |
try { |
279 |
> |
p.setThreadFactory(null); |
280 |
> |
shouldThrow(); |
281 |
> |
} catch (NullPointerException success) {} |
282 |
|
} |
283 |
|
} |
284 |
|
|
286 |
|
* getRejectedExecutionHandler returns handler in constructor if not set |
287 |
|
*/ |
288 |
|
public void testGetRejectedExecutionHandler() { |
289 |
< |
final RejectedExecutionHandler h = new NoOpREHandler(); |
289 |
> |
final RejectedExecutionHandler handler = new NoOpREHandler(); |
290 |
|
final ThreadPoolExecutor p = |
291 |
|
new ThreadPoolExecutor(1, 2, |
292 |
|
LONG_DELAY_MS, MILLISECONDS, |
293 |
|
new ArrayBlockingQueue<Runnable>(10), |
294 |
< |
h); |
295 |
< |
assertSame(h, p.getRejectedExecutionHandler()); |
296 |
< |
joinPool(p); |
294 |
> |
handler); |
295 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
296 |
> |
assertSame(handler, p.getRejectedExecutionHandler()); |
297 |
> |
} |
298 |
|
} |
299 |
|
|
300 |
|
/** |
306 |
|
new ThreadPoolExecutor(1, 2, |
307 |
|
LONG_DELAY_MS, MILLISECONDS, |
308 |
|
new ArrayBlockingQueue<Runnable>(10)); |
309 |
< |
RejectedExecutionHandler h = new NoOpREHandler(); |
310 |
< |
p.setRejectedExecutionHandler(h); |
311 |
< |
assertSame(h, p.getRejectedExecutionHandler()); |
312 |
< |
joinPool(p); |
309 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
310 |
> |
RejectedExecutionHandler handler = new NoOpREHandler(); |
311 |
> |
p.setRejectedExecutionHandler(handler); |
312 |
> |
assertSame(handler, p.getRejectedExecutionHandler()); |
313 |
> |
} |
314 |
|
} |
315 |
|
|
316 |
|
/** |
321 |
|
new ThreadPoolExecutor(1, 2, |
322 |
|
LONG_DELAY_MS, MILLISECONDS, |
323 |
|
new ArrayBlockingQueue<Runnable>(10)); |
324 |
< |
try { |
325 |
< |
p.setRejectedExecutionHandler(null); |
326 |
< |
shouldThrow(); |
327 |
< |
} catch (NullPointerException success) { |
328 |
< |
} finally { |
311 |
< |
joinPool(p); |
324 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
325 |
> |
try { |
326 |
> |
p.setRejectedExecutionHandler(null); |
327 |
> |
shouldThrow(); |
328 |
> |
} catch (NullPointerException success) {} |
329 |
|
} |
330 |
|
} |
331 |
|
|
339 |
|
new ThreadPoolExecutor(THREADS, THREADS, |
340 |
|
LONG_DELAY_MS, MILLISECONDS, |
341 |
|
new ArrayBlockingQueue<Runnable>(10)); |
342 |
< |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
343 |
< |
final CountDownLatch done = new CountDownLatch(1); |
344 |
< |
try { |
342 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
343 |
> |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
344 |
> |
final CountDownLatch done = new CountDownLatch(1); |
345 |
|
assertEquals(0, p.getLargestPoolSize()); |
346 |
|
for (int i = 0; i < THREADS; i++) |
347 |
|
p.execute(new CheckedRunnable() { |
350 |
|
done.await(); |
351 |
|
assertEquals(THREADS, p.getLargestPoolSize()); |
352 |
|
}}); |
353 |
< |
assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
337 |
< |
assertEquals(THREADS, p.getLargestPoolSize()); |
338 |
< |
} finally { |
339 |
< |
done.countDown(); |
340 |
< |
joinPool(p); |
353 |
> |
assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
354 |
|
assertEquals(THREADS, p.getLargestPoolSize()); |
355 |
+ |
done.countDown(); // release pool |
356 |
|
} |
357 |
+ |
assertEquals(THREADS, p.getLargestPoolSize()); |
358 |
|
} |
359 |
|
|
360 |
|
/** |
639 |
|
} |
640 |
|
|
641 |
|
/** |
642 |
< |
* shutdownNow returns a list containing tasks that were not run |
642 |
> |
* shutdownNow returns a list containing tasks that were not run, |
643 |
> |
* and those tasks are drained from the queue |
644 |
|
*/ |
645 |
< |
public void testShutdownNow() { |
645 |
> |
public void testShutdownNow() throws InterruptedException { |
646 |
> |
final int poolSize = 2; |
647 |
> |
final int count = 5; |
648 |
> |
final AtomicInteger ran = new AtomicInteger(0); |
649 |
|
final ThreadPoolExecutor p = |
650 |
< |
new ThreadPoolExecutor(1, 1, |
650 |
> |
new ThreadPoolExecutor(poolSize, poolSize, |
651 |
|
LONG_DELAY_MS, MILLISECONDS, |
652 |
|
new ArrayBlockingQueue<Runnable>(10)); |
653 |
< |
List l; |
654 |
< |
try { |
655 |
< |
for (int i = 0; i < 5; i++) |
637 |
< |
p.execute(new MediumPossiblyInterruptedRunnable()); |
638 |
< |
} |
639 |
< |
finally { |
653 |
> |
CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
654 |
> |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
655 |
> |
threadsStarted.countDown(); |
656 |
|
try { |
657 |
< |
l = p.shutdownNow(); |
658 |
< |
} catch (SecurityException ok) { return; } |
657 |
> |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
658 |
> |
} catch (InterruptedException success) {} |
659 |
> |
ran.getAndIncrement(); |
660 |
> |
}}; |
661 |
> |
for (int i = 0; i < count; i++) |
662 |
> |
p.execute(waiter); |
663 |
> |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
664 |
> |
assertEquals(poolSize, p.getActiveCount()); |
665 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
666 |
> |
final List<Runnable> queuedTasks; |
667 |
> |
try { |
668 |
> |
queuedTasks = p.shutdownNow(); |
669 |
> |
} catch (SecurityException ok) { |
670 |
> |
return; // Allowed in case test doesn't have privs |
671 |
|
} |
672 |
|
assertTrue(p.isShutdown()); |
673 |
< |
assertTrue(l.size() <= 4); |
673 |
> |
assertTrue(p.getQueue().isEmpty()); |
674 |
> |
assertEquals(count - poolSize, queuedTasks.size()); |
675 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
676 |
> |
assertTrue(p.isTerminated()); |
677 |
> |
assertEquals(poolSize, ran.get()); |
678 |
> |
assertEquals(poolSize, p.getCompletedTaskCount()); |
679 |
|
} |
680 |
|
|
681 |
|
// Exception Tests |
1908 |
|
l.add(new StringTask()); |
1909 |
|
l.add(new StringTask()); |
1910 |
|
List<Future<String>> futures = |
1911 |
< |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1911 |
> |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1912 |
|
assertEquals(2, futures.size()); |
1913 |
|
for (Future<String> future : futures) |
1914 |
|
assertSame(TEST_STRING, future.get()); |
2076 |
|
} |
2077 |
|
} |
2078 |
|
|
2079 |
+ |
/** |
2080 |
+ |
* get(cancelled task) throws CancellationException |
2081 |
+ |
*/ |
2082 |
+ |
public void testGet_cancelled() throws Exception { |
2083 |
+ |
final ExecutorService e = |
2084 |
+ |
new ThreadPoolExecutor(1, 1, |
2085 |
+ |
LONG_DELAY_MS, MILLISECONDS, |
2086 |
+ |
new LinkedBlockingQueue<Runnable>()); |
2087 |
+ |
try { |
2088 |
+ |
final CountDownLatch blockerStarted = new CountDownLatch(1); |
2089 |
+ |
final CountDownLatch done = new CountDownLatch(1); |
2090 |
+ |
final List<Future<?>> futures = new ArrayList<>(); |
2091 |
+ |
for (int i = 0; i < 2; i++) { |
2092 |
+ |
Runnable r = new CheckedRunnable() { public void realRun() |
2093 |
+ |
throws Throwable { |
2094 |
+ |
blockerStarted.countDown(); |
2095 |
+ |
assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS)); |
2096 |
+ |
}}; |
2097 |
+ |
futures.add(e.submit(r)); |
2098 |
+ |
} |
2099 |
+ |
assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
2100 |
+ |
for (Future<?> future : futures) future.cancel(false); |
2101 |
+ |
for (Future<?> future : futures) { |
2102 |
+ |
try { |
2103 |
+ |
future.get(); |
2104 |
+ |
shouldThrow(); |
2105 |
+ |
} catch (CancellationException success) {} |
2106 |
+ |
try { |
2107 |
+ |
future.get(LONG_DELAY_MS, MILLISECONDS); |
2108 |
+ |
shouldThrow(); |
2109 |
+ |
} catch (CancellationException success) {} |
2110 |
+ |
assertTrue(future.isCancelled()); |
2111 |
+ |
assertTrue(future.isDone()); |
2112 |
+ |
} |
2113 |
+ |
done.countDown(); |
2114 |
+ |
} finally { |
2115 |
+ |
joinPool(e); |
2116 |
+ |
} |
2117 |
+ |
} |
2118 |
+ |
|
2119 |
|
} |