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/publicdomain/zero/1.0/ |
5 |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
* Pat Fisher, Mike Judd. |
7 |
*/ |
8 |
|
9 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
|
11 |
import java.security.AccessControlContext; |
12 |
import java.security.AccessControlException; |
13 |
import java.security.AccessController; |
14 |
import java.security.PrivilegedAction; |
15 |
import java.security.PrivilegedExceptionAction; |
16 |
import java.util.ArrayList; |
17 |
import java.util.List; |
18 |
import java.util.concurrent.Callable; |
19 |
import java.util.concurrent.CountDownLatch; |
20 |
import java.util.concurrent.Executors; |
21 |
import java.util.concurrent.ExecutorService; |
22 |
import java.util.concurrent.Future; |
23 |
import java.util.concurrent.ScheduledExecutorService; |
24 |
import java.util.concurrent.ThreadPoolExecutor; |
25 |
|
26 |
import junit.framework.Test; |
27 |
import junit.framework.TestSuite; |
28 |
|
29 |
public class ExecutorsTest extends JSR166TestCase { |
30 |
public static void main(String[] args) { |
31 |
main(suite(), args); |
32 |
} |
33 |
public static Test suite() { |
34 |
return new TestSuite(ExecutorsTest.class); |
35 |
} |
36 |
|
37 |
/** |
38 |
* A newCachedThreadPool can execute runnables |
39 |
*/ |
40 |
public void testNewCachedThreadPool1() { |
41 |
final ExecutorService e = Executors.newCachedThreadPool(); |
42 |
try (PoolCleaner cleaner = cleaner(e)) { |
43 |
e.execute(new NoOpRunnable()); |
44 |
e.execute(new NoOpRunnable()); |
45 |
e.execute(new NoOpRunnable()); |
46 |
} |
47 |
} |
48 |
|
49 |
/** |
50 |
* A newCachedThreadPool with given ThreadFactory can execute runnables |
51 |
*/ |
52 |
public void testNewCachedThreadPool2() { |
53 |
final ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory()); |
54 |
try (PoolCleaner cleaner = cleaner(e)) { |
55 |
e.execute(new NoOpRunnable()); |
56 |
e.execute(new NoOpRunnable()); |
57 |
e.execute(new NoOpRunnable()); |
58 |
} |
59 |
} |
60 |
|
61 |
/** |
62 |
* A newCachedThreadPool with null ThreadFactory throws NPE |
63 |
*/ |
64 |
public void testNewCachedThreadPool3() { |
65 |
try { |
66 |
ExecutorService unused = Executors.newCachedThreadPool(null); |
67 |
shouldThrow(); |
68 |
} catch (NullPointerException success) {} |
69 |
} |
70 |
|
71 |
/** |
72 |
* A new SingleThreadExecutor can execute runnables |
73 |
*/ |
74 |
public void testNewSingleThreadExecutor1() { |
75 |
final ExecutorService e = Executors.newSingleThreadExecutor(); |
76 |
try (PoolCleaner cleaner = cleaner(e)) { |
77 |
e.execute(new NoOpRunnable()); |
78 |
e.execute(new NoOpRunnable()); |
79 |
e.execute(new NoOpRunnable()); |
80 |
} |
81 |
} |
82 |
|
83 |
/** |
84 |
* A new SingleThreadExecutor with given ThreadFactory can execute runnables |
85 |
*/ |
86 |
public void testNewSingleThreadExecutor2() { |
87 |
final ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory()); |
88 |
try (PoolCleaner cleaner = cleaner(e)) { |
89 |
e.execute(new NoOpRunnable()); |
90 |
e.execute(new NoOpRunnable()); |
91 |
e.execute(new NoOpRunnable()); |
92 |
} |
93 |
} |
94 |
|
95 |
/** |
96 |
* A new SingleThreadExecutor with null ThreadFactory throws NPE |
97 |
*/ |
98 |
public void testNewSingleThreadExecutor3() { |
99 |
try { |
100 |
ExecutorService unused = Executors.newSingleThreadExecutor(null); |
101 |
shouldThrow(); |
102 |
} catch (NullPointerException success) {} |
103 |
} |
104 |
|
105 |
/** |
106 |
* A new SingleThreadExecutor cannot be casted to concrete implementation |
107 |
*/ |
108 |
public void testCastNewSingleThreadExecutor() { |
109 |
final ExecutorService e = Executors.newSingleThreadExecutor(); |
110 |
try (PoolCleaner cleaner = cleaner(e)) { |
111 |
try { |
112 |
ThreadPoolExecutor tpe = (ThreadPoolExecutor)e; |
113 |
shouldThrow(); |
114 |
} catch (ClassCastException success) {} |
115 |
} |
116 |
} |
117 |
|
118 |
/** |
119 |
* A new newFixedThreadPool can execute runnables |
120 |
*/ |
121 |
public void testNewFixedThreadPool1() { |
122 |
final ExecutorService e = Executors.newFixedThreadPool(2); |
123 |
try (PoolCleaner cleaner = cleaner(e)) { |
124 |
e.execute(new NoOpRunnable()); |
125 |
e.execute(new NoOpRunnable()); |
126 |
e.execute(new NoOpRunnable()); |
127 |
} |
128 |
} |
129 |
|
130 |
/** |
131 |
* A new newFixedThreadPool with given ThreadFactory can execute runnables |
132 |
*/ |
133 |
public void testNewFixedThreadPool2() { |
134 |
final ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory()); |
135 |
try (PoolCleaner cleaner = cleaner(e)) { |
136 |
e.execute(new NoOpRunnable()); |
137 |
e.execute(new NoOpRunnable()); |
138 |
e.execute(new NoOpRunnable()); |
139 |
} |
140 |
} |
141 |
|
142 |
/** |
143 |
* A new newFixedThreadPool with null ThreadFactory throws |
144 |
* NullPointerException |
145 |
*/ |
146 |
public void testNewFixedThreadPool3() { |
147 |
try { |
148 |
ExecutorService unused = Executors.newFixedThreadPool(2, null); |
149 |
shouldThrow(); |
150 |
} catch (NullPointerException success) {} |
151 |
} |
152 |
|
153 |
/** |
154 |
* A new newFixedThreadPool with 0 threads throws IllegalArgumentException |
155 |
*/ |
156 |
public void testNewFixedThreadPool4() { |
157 |
try { |
158 |
ExecutorService unused = Executors.newFixedThreadPool(0); |
159 |
shouldThrow(); |
160 |
} catch (IllegalArgumentException success) {} |
161 |
} |
162 |
|
163 |
/** |
164 |
* An unconfigurable newFixedThreadPool can execute runnables |
165 |
*/ |
166 |
public void testUnconfigurableExecutorService() { |
167 |
final ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2)); |
168 |
try (PoolCleaner cleaner = cleaner(e)) { |
169 |
e.execute(new NoOpRunnable()); |
170 |
e.execute(new NoOpRunnable()); |
171 |
e.execute(new NoOpRunnable()); |
172 |
} |
173 |
} |
174 |
|
175 |
/** |
176 |
* unconfigurableExecutorService(null) throws NPE |
177 |
*/ |
178 |
public void testUnconfigurableExecutorServiceNPE() { |
179 |
try { |
180 |
ExecutorService unused = |
181 |
Executors.unconfigurableExecutorService(null); |
182 |
shouldThrow(); |
183 |
} catch (NullPointerException success) {} |
184 |
} |
185 |
|
186 |
/** |
187 |
* unconfigurableScheduledExecutorService(null) throws NPE |
188 |
*/ |
189 |
public void testUnconfigurableScheduledExecutorServiceNPE() { |
190 |
try { |
191 |
ExecutorService unused = |
192 |
Executors.unconfigurableScheduledExecutorService(null); |
193 |
shouldThrow(); |
194 |
} catch (NullPointerException success) {} |
195 |
} |
196 |
|
197 |
/** |
198 |
* a newSingleThreadScheduledExecutor successfully runs delayed task |
199 |
*/ |
200 |
public void testNewSingleThreadScheduledExecutor() throws Exception { |
201 |
final ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor(); |
202 |
try (PoolCleaner cleaner = cleaner(p)) { |
203 |
final CountDownLatch proceed = new CountDownLatch(1); |
204 |
final Runnable task = new CheckedRunnable() { |
205 |
public void realRun() { |
206 |
await(proceed); |
207 |
}}; |
208 |
long startTime = System.nanoTime(); |
209 |
Future<?> f = p.schedule(Executors.callable(task, Boolean.TRUE), |
210 |
timeoutMillis(), MILLISECONDS); |
211 |
assertFalse(f.isDone()); |
212 |
proceed.countDown(); |
213 |
assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS)); |
214 |
assertSame(Boolean.TRUE, f.get()); |
215 |
assertTrue(f.isDone()); |
216 |
assertFalse(f.isCancelled()); |
217 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
218 |
} |
219 |
} |
220 |
|
221 |
/** |
222 |
* a newScheduledThreadPool successfully runs delayed task |
223 |
*/ |
224 |
public void testNewScheduledThreadPool() throws Exception { |
225 |
final ScheduledExecutorService p = Executors.newScheduledThreadPool(2); |
226 |
try (PoolCleaner cleaner = cleaner(p)) { |
227 |
final CountDownLatch proceed = new CountDownLatch(1); |
228 |
final Runnable task = new CheckedRunnable() { |
229 |
public void realRun() { |
230 |
await(proceed); |
231 |
}}; |
232 |
long startTime = System.nanoTime(); |
233 |
Future<?> f = p.schedule(Executors.callable(task, Boolean.TRUE), |
234 |
timeoutMillis(), MILLISECONDS); |
235 |
assertFalse(f.isDone()); |
236 |
proceed.countDown(); |
237 |
assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS)); |
238 |
assertSame(Boolean.TRUE, f.get()); |
239 |
assertTrue(f.isDone()); |
240 |
assertFalse(f.isCancelled()); |
241 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
242 |
} |
243 |
} |
244 |
|
245 |
/** |
246 |
* an unconfigurable newScheduledThreadPool successfully runs delayed task |
247 |
*/ |
248 |
public void testUnconfigurableScheduledExecutorService() throws Exception { |
249 |
final ScheduledExecutorService p = |
250 |
Executors.unconfigurableScheduledExecutorService |
251 |
(Executors.newScheduledThreadPool(2)); |
252 |
try (PoolCleaner cleaner = cleaner(p)) { |
253 |
final CountDownLatch proceed = new CountDownLatch(1); |
254 |
final Runnable task = new CheckedRunnable() { |
255 |
public void realRun() { |
256 |
await(proceed); |
257 |
}}; |
258 |
long startTime = System.nanoTime(); |
259 |
Future<?> f = p.schedule(Executors.callable(task, Boolean.TRUE), |
260 |
timeoutMillis(), MILLISECONDS); |
261 |
assertFalse(f.isDone()); |
262 |
proceed.countDown(); |
263 |
assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS)); |
264 |
assertSame(Boolean.TRUE, f.get()); |
265 |
assertTrue(f.isDone()); |
266 |
assertFalse(f.isCancelled()); |
267 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
268 |
} |
269 |
} |
270 |
|
271 |
/** |
272 |
* Future.get on submitted tasks will time out if they compute too long. |
273 |
*/ |
274 |
public void testTimedCallable() throws Exception { |
275 |
final ExecutorService[] executors = { |
276 |
Executors.newSingleThreadExecutor(), |
277 |
Executors.newCachedThreadPool(), |
278 |
Executors.newFixedThreadPool(2), |
279 |
Executors.newScheduledThreadPool(2), |
280 |
}; |
281 |
|
282 |
final CountDownLatch done = new CountDownLatch(1); |
283 |
|
284 |
final Runnable sleeper = new CheckedRunnable() { |
285 |
public void realRun() throws InterruptedException { |
286 |
done.await(LONG_DELAY_MS, MILLISECONDS); |
287 |
}}; |
288 |
|
289 |
List<Thread> threads = new ArrayList<>(); |
290 |
for (final ExecutorService executor : executors) { |
291 |
threads.add(newStartedThread(new CheckedRunnable() { |
292 |
public void realRun() { |
293 |
Future<?> future = executor.submit(sleeper); |
294 |
assertFutureTimesOut(future); |
295 |
}})); |
296 |
} |
297 |
for (Thread thread : threads) |
298 |
awaitTermination(thread); |
299 |
done.countDown(); |
300 |
for (ExecutorService executor : executors) |
301 |
joinPool(executor); |
302 |
} |
303 |
|
304 |
/** |
305 |
* ThreadPoolExecutor using defaultThreadFactory has |
306 |
* specified group, priority, daemon status, and name |
307 |
*/ |
308 |
@SuppressWarnings("removal") |
309 |
public void testDefaultThreadFactory() throws Exception { |
310 |
final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
311 |
final CountDownLatch done = new CountDownLatch(1); |
312 |
Runnable r = new CheckedRunnable() { |
313 |
public void realRun() { |
314 |
try { |
315 |
Thread current = Thread.currentThread(); |
316 |
assertFalse(current.isDaemon()); |
317 |
assertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
318 |
SecurityManager s = System.getSecurityManager(); |
319 |
assertSame(current.getThreadGroup(), |
320 |
(s == null) ? egroup : s.getThreadGroup()); |
321 |
assertTrue(current.getName().endsWith("thread-1")); |
322 |
} catch (SecurityException ok) { |
323 |
// Also pass if not allowed to change setting |
324 |
} |
325 |
done.countDown(); |
326 |
}}; |
327 |
ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory()); |
328 |
try (PoolCleaner cleaner = cleaner(e)) { |
329 |
e.execute(r); |
330 |
await(done); |
331 |
} |
332 |
} |
333 |
|
334 |
/** |
335 |
* ThreadPoolExecutor using privilegedThreadFactory has |
336 |
* specified group, priority, daemon status, name, |
337 |
* access control context and context class loader |
338 |
*/ |
339 |
@SuppressWarnings("removal") |
340 |
public void testPrivilegedThreadFactory() throws Exception { |
341 |
final CountDownLatch done = new CountDownLatch(1); |
342 |
Runnable r = new CheckedRunnable() { |
343 |
public void realRun() throws Exception { |
344 |
final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
345 |
final ClassLoader thisccl = Thread.currentThread().getContextClassLoader(); |
346 |
final AccessControlContext thisacc = AccessController.getContext(); |
347 |
Runnable r = new CheckedRunnable() { |
348 |
public void realRun() { |
349 |
Thread current = Thread.currentThread(); |
350 |
assertFalse(current.isDaemon()); |
351 |
assertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
352 |
SecurityManager s = System.getSecurityManager(); |
353 |
assertSame(current.getThreadGroup(), |
354 |
(s == null) ? egroup : s.getThreadGroup()); |
355 |
assertTrue(current.getName().endsWith("thread-1")); |
356 |
assertSame(thisccl, current.getContextClassLoader()); |
357 |
assertEquals(thisacc, AccessController.getContext()); |
358 |
done.countDown(); |
359 |
}}; |
360 |
ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory()); |
361 |
try (PoolCleaner cleaner = cleaner(e)) { |
362 |
e.execute(r); |
363 |
await(done); |
364 |
} |
365 |
}}; |
366 |
|
367 |
runWithPermissions(r, |
368 |
new RuntimePermission("getClassLoader"), |
369 |
new RuntimePermission("setContextClassLoader"), |
370 |
new RuntimePermission("modifyThread")); |
371 |
} |
372 |
|
373 |
@SuppressWarnings("removal") |
374 |
boolean haveCCLPermissions() { |
375 |
SecurityManager sm = System.getSecurityManager(); |
376 |
if (sm != null) { |
377 |
try { |
378 |
sm.checkPermission(new RuntimePermission("setContextClassLoader")); |
379 |
sm.checkPermission(new RuntimePermission("getClassLoader")); |
380 |
} catch (AccessControlException e) { |
381 |
return false; |
382 |
} |
383 |
} |
384 |
return true; |
385 |
} |
386 |
|
387 |
@SuppressWarnings("removal") |
388 |
void checkCCL() { |
389 |
SecurityManager sm = System.getSecurityManager(); |
390 |
if (sm != null) { |
391 |
sm.checkPermission(new RuntimePermission("setContextClassLoader")); |
392 |
sm.checkPermission(new RuntimePermission("getClassLoader")); |
393 |
} |
394 |
} |
395 |
|
396 |
class CheckCCL implements Callable<Object> { |
397 |
public Object call() { |
398 |
checkCCL(); |
399 |
return null; |
400 |
} |
401 |
} |
402 |
|
403 |
/** |
404 |
* Without class loader permissions, creating |
405 |
* privilegedCallableUsingCurrentClassLoader throws ACE |
406 |
*/ |
407 |
@SuppressWarnings("removal") |
408 |
public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() { |
409 |
Runnable r = new CheckedRunnable() { |
410 |
public void realRun() throws Exception { |
411 |
if (System.getSecurityManager() == null) |
412 |
return; |
413 |
try { |
414 |
Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable()); |
415 |
shouldThrow(); |
416 |
} catch (AccessControlException success) {} |
417 |
}}; |
418 |
|
419 |
runWithoutPermissions(r); |
420 |
} |
421 |
|
422 |
/** |
423 |
* With class loader permissions, calling |
424 |
* privilegedCallableUsingCurrentClassLoader does not throw ACE |
425 |
*/ |
426 |
@SuppressWarnings("removal") |
427 |
public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception { |
428 |
Runnable r = new CheckedRunnable() { |
429 |
public void realRun() throws Exception { |
430 |
Executors.privilegedCallableUsingCurrentClassLoader |
431 |
(new NoOpCallable()) |
432 |
.call(); |
433 |
}}; |
434 |
|
435 |
runWithPermissions(r, |
436 |
new RuntimePermission("getClassLoader"), |
437 |
new RuntimePermission("setContextClassLoader")); |
438 |
} |
439 |
|
440 |
/** |
441 |
* Without permissions, calling privilegedCallable throws ACE |
442 |
*/ |
443 |
@SuppressWarnings("removal") |
444 |
public void testPrivilegedCallableWithNoPrivs() throws Exception { |
445 |
// Avoid classloader-related SecurityExceptions in swingui.TestRunner |
446 |
Executors.privilegedCallable(new CheckCCL()); |
447 |
|
448 |
Runnable r = new CheckedRunnable() { |
449 |
public void realRun() throws Exception { |
450 |
if (System.getSecurityManager() == null) |
451 |
return; |
452 |
Callable<?> task = Executors.privilegedCallable(new CheckCCL()); |
453 |
try { |
454 |
task.call(); |
455 |
shouldThrow(); |
456 |
} catch (AccessControlException success) {} |
457 |
}}; |
458 |
|
459 |
runWithoutPermissions(r); |
460 |
|
461 |
// It seems rather difficult to test that the |
462 |
// AccessControlContext of the privilegedCallable is used |
463 |
// instead of its caller. Below is a failed attempt to do |
464 |
// that, which does not work because the AccessController |
465 |
// cannot capture the internal state of the current Policy. |
466 |
// It would be much more work to differentiate based on, |
467 |
// e.g. CodeSource. |
468 |
|
469 |
// final AccessControlContext[] noprivAcc = new AccessControlContext[1]; |
470 |
// final Callable[] task = new Callable[1]; |
471 |
|
472 |
// runWithPermissions |
473 |
// (new CheckedRunnable() { |
474 |
// public void realRun() { |
475 |
// if (System.getSecurityManager() == null) |
476 |
// return; |
477 |
// noprivAcc[0] = AccessController.getContext(); |
478 |
// task[0] = Executors.privilegedCallable(new CheckCCL()); |
479 |
// try { |
480 |
// AccessController.doPrivileged(new PrivilegedAction<Void>() { |
481 |
// public Void run() { |
482 |
// checkCCL(); |
483 |
// return null; |
484 |
// }}, noprivAcc[0]); |
485 |
// shouldThrow(); |
486 |
// } catch (AccessControlException success) {} |
487 |
// }}); |
488 |
|
489 |
// runWithPermissions |
490 |
// (new CheckedRunnable() { |
491 |
// public void realRun() throws Exception { |
492 |
// if (System.getSecurityManager() == null) |
493 |
// return; |
494 |
// // Verify that we have an underprivileged ACC |
495 |
// try { |
496 |
// AccessController.doPrivileged(new PrivilegedAction<Void>() { |
497 |
// public Void run() { |
498 |
// checkCCL(); |
499 |
// return null; |
500 |
// }}, noprivAcc[0]); |
501 |
// shouldThrow(); |
502 |
// } catch (AccessControlException success) {} |
503 |
|
504 |
// try { |
505 |
// task[0].call(); |
506 |
// shouldThrow(); |
507 |
// } catch (AccessControlException success) {} |
508 |
// }}, |
509 |
// new RuntimePermission("getClassLoader"), |
510 |
// new RuntimePermission("setContextClassLoader")); |
511 |
} |
512 |
|
513 |
/** |
514 |
* With permissions, calling privilegedCallable succeeds |
515 |
*/ |
516 |
@SuppressWarnings("removal") |
517 |
public void testPrivilegedCallableWithPrivs() throws Exception { |
518 |
Runnable r = new CheckedRunnable() { |
519 |
public void realRun() throws Exception { |
520 |
Executors.privilegedCallable(new CheckCCL()).call(); |
521 |
}}; |
522 |
|
523 |
runWithPermissions(r, |
524 |
new RuntimePermission("getClassLoader"), |
525 |
new RuntimePermission("setContextClassLoader")); |
526 |
} |
527 |
|
528 |
/** |
529 |
* callable(Runnable) returns null when called |
530 |
*/ |
531 |
public void testCallable1() throws Exception { |
532 |
Callable<?> c = Executors.callable(new NoOpRunnable()); |
533 |
assertNull(c.call()); |
534 |
} |
535 |
|
536 |
/** |
537 |
* callable(Runnable, result) returns result when called |
538 |
*/ |
539 |
public void testCallable2() throws Exception { |
540 |
Callable<?> c = Executors.callable(new NoOpRunnable(), one); |
541 |
assertSame(one, c.call()); |
542 |
} |
543 |
|
544 |
/** |
545 |
* callable(PrivilegedAction) returns its result when called |
546 |
*/ |
547 |
public void testCallable3() throws Exception { |
548 |
Callable<?> c = Executors.callable(new PrivilegedAction() { |
549 |
public Object run() { return one; }}); |
550 |
assertSame(one, c.call()); |
551 |
} |
552 |
|
553 |
/** |
554 |
* callable(PrivilegedExceptionAction) returns its result when called |
555 |
*/ |
556 |
public void testCallable4() throws Exception { |
557 |
Callable<?> c = Executors.callable(new PrivilegedExceptionAction() { |
558 |
public Object run() { return one; }}); |
559 |
assertSame(one, c.call()); |
560 |
} |
561 |
|
562 |
/** |
563 |
* callable(null Runnable) throws NPE |
564 |
*/ |
565 |
public void testCallableNPE1() { |
566 |
try { |
567 |
Callable<?> unused = Executors.callable((Runnable) null); |
568 |
shouldThrow(); |
569 |
} catch (NullPointerException success) {} |
570 |
} |
571 |
|
572 |
/** |
573 |
* callable(null, result) throws NPE |
574 |
*/ |
575 |
public void testCallableNPE2() { |
576 |
try { |
577 |
Callable<?> unused = Executors.callable((Runnable) null, one); |
578 |
shouldThrow(); |
579 |
} catch (NullPointerException success) {} |
580 |
} |
581 |
|
582 |
/** |
583 |
* callable(null PrivilegedAction) throws NPE |
584 |
*/ |
585 |
public void testCallableNPE3() { |
586 |
try { |
587 |
Callable<?> unused = Executors.callable((PrivilegedAction) null); |
588 |
shouldThrow(); |
589 |
} catch (NullPointerException success) {} |
590 |
} |
591 |
|
592 |
/** |
593 |
* callable(null PrivilegedExceptionAction) throws NPE |
594 |
*/ |
595 |
public void testCallableNPE4() { |
596 |
try { |
597 |
Callable<?> unused = Executors.callable((PrivilegedExceptionAction) null); |
598 |
shouldThrow(); |
599 |
} catch (NullPointerException success) {} |
600 |
} |
601 |
|
602 |
/** |
603 |
* callable(runnable, x).toString() contains toString of wrapped task |
604 |
*/ |
605 |
public void testCallable_withResult_toString() { |
606 |
if (testImplementationDetails) { |
607 |
Runnable r = () -> {}; |
608 |
Callable<String> c = Executors.callable(r, ""); |
609 |
assertEquals( |
610 |
identityString(c) + "[Wrapped task = " + r.toString() + "]", |
611 |
c.toString()); |
612 |
} |
613 |
} |
614 |
|
615 |
/** |
616 |
* callable(runnable).toString() contains toString of wrapped task |
617 |
*/ |
618 |
public void testCallable_toString() { |
619 |
if (testImplementationDetails) { |
620 |
Runnable r = () -> {}; |
621 |
Callable<Object> c = Executors.callable(r); |
622 |
assertEquals( |
623 |
identityString(c) + "[Wrapped task = " + r.toString() + "]", |
624 |
c.toString()); |
625 |
} |
626 |
} |
627 |
|
628 |
/** |
629 |
* privilegedCallable(callable).toString() contains toString of wrapped task |
630 |
*/ |
631 |
@SuppressWarnings("removal") |
632 |
public void testPrivilegedCallable_toString() { |
633 |
if (testImplementationDetails) { |
634 |
Callable<String> c = () -> ""; |
635 |
Callable<String> priv = Executors.privilegedCallable(c); |
636 |
assertEquals( |
637 |
identityString(priv) + "[Wrapped task = " + c.toString() + "]", |
638 |
priv.toString()); |
639 |
} |
640 |
} |
641 |
|
642 |
/** |
643 |
* privilegedCallableUsingCurrentClassLoader(callable).toString() |
644 |
* contains toString of wrapped task |
645 |
*/ |
646 |
@SuppressWarnings("removal") |
647 |
public void testPrivilegedCallableUsingCurrentClassLoader_toString() { |
648 |
if (testImplementationDetails) { |
649 |
Callable<String> c = () -> ""; |
650 |
Callable<String> priv = Executors.privilegedCallableUsingCurrentClassLoader(c); |
651 |
assertEquals( |
652 |
identityString(priv) + "[Wrapped task = " + c.toString() + "]", |
653 |
priv.toString()); |
654 |
} |
655 |
} |
656 |
} |