Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 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 | package jsr166; |
| 10 | |
Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 11 | import static java.util.concurrent.TimeUnit.MILLISECONDS; |
Narayan Kamath | 8e9a0e9 | 2015-04-28 11:40:00 +0100 | [diff] [blame] | 12 | |
| 13 | import java.security.AccessControlContext; |
| 14 | import java.security.AccessControlException; |
| 15 | import java.security.AccessController; |
| 16 | import java.security.PrivilegedAction; |
| 17 | import java.security.PrivilegedExceptionAction; |
| 18 | import java.util.ArrayList; |
| 19 | import java.util.List; |
| 20 | import java.util.concurrent.Callable; |
| 21 | import java.util.concurrent.CountDownLatch; |
| 22 | import java.util.concurrent.Executors; |
| 23 | import java.util.concurrent.ExecutorService; |
| 24 | import java.util.concurrent.Future; |
| 25 | import java.util.concurrent.ScheduledExecutorService; |
| 26 | import java.util.concurrent.ThreadPoolExecutor; |
| 27 | |
| 28 | import junit.framework.Test; |
| 29 | import junit.framework.TestSuite; |
Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 30 | |
| 31 | public class ExecutorsTest extends JSR166TestCase { |
Narayan Kamath | 8e9a0e9 | 2015-04-28 11:40:00 +0100 | [diff] [blame] | 32 | // android-note: Removed because the CTS runner does a bad job of |
| 33 | // retrying tests that have suite() declarations. |
| 34 | // |
| 35 | // public static void main(String[] args) { |
| 36 | // main(suite(), args); |
| 37 | // } |
| 38 | // public static Test suite() { |
| 39 | // return new TestSuite(...); |
| 40 | // } |
Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 41 | |
| 42 | /** |
| 43 | * A newCachedThreadPool can execute runnables |
| 44 | */ |
| 45 | public void testNewCachedThreadPool1() { |
| 46 | ExecutorService e = Executors.newCachedThreadPool(); |
| 47 | e.execute(new NoOpRunnable()); |
| 48 | e.execute(new NoOpRunnable()); |
| 49 | e.execute(new NoOpRunnable()); |
| 50 | joinPool(e); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * A newCachedThreadPool with given ThreadFactory can execute runnables |
| 55 | */ |
| 56 | public void testNewCachedThreadPool2() { |
| 57 | ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory()); |
| 58 | e.execute(new NoOpRunnable()); |
| 59 | e.execute(new NoOpRunnable()); |
| 60 | e.execute(new NoOpRunnable()); |
| 61 | joinPool(e); |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * A newCachedThreadPool with null ThreadFactory throws NPE |
| 66 | */ |
| 67 | public void testNewCachedThreadPool3() { |
| 68 | try { |
| 69 | ExecutorService e = Executors.newCachedThreadPool(null); |
| 70 | shouldThrow(); |
| 71 | } catch (NullPointerException success) {} |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * A new SingleThreadExecutor can execute runnables |
| 76 | */ |
| 77 | public void testNewSingleThreadExecutor1() { |
| 78 | ExecutorService e = Executors.newSingleThreadExecutor(); |
| 79 | e.execute(new NoOpRunnable()); |
| 80 | e.execute(new NoOpRunnable()); |
| 81 | e.execute(new NoOpRunnable()); |
| 82 | joinPool(e); |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * A new SingleThreadExecutor with given ThreadFactory can execute runnables |
| 87 | */ |
| 88 | public void testNewSingleThreadExecutor2() { |
| 89 | ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory()); |
| 90 | e.execute(new NoOpRunnable()); |
| 91 | e.execute(new NoOpRunnable()); |
| 92 | e.execute(new NoOpRunnable()); |
| 93 | joinPool(e); |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * A new SingleThreadExecutor with null ThreadFactory throws NPE |
| 98 | */ |
| 99 | public void testNewSingleThreadExecutor3() { |
| 100 | try { |
| 101 | ExecutorService e = Executors.newSingleThreadExecutor(null); |
| 102 | shouldThrow(); |
| 103 | } catch (NullPointerException success) {} |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * A new SingleThreadExecutor cannot be casted to concrete implementation |
| 108 | */ |
| 109 | public void testCastNewSingleThreadExecutor() { |
| 110 | ExecutorService e = Executors.newSingleThreadExecutor(); |
| 111 | try { |
| 112 | ThreadPoolExecutor tpe = (ThreadPoolExecutor)e; |
| 113 | shouldThrow(); |
| 114 | } catch (ClassCastException success) { |
| 115 | } finally { |
| 116 | joinPool(e); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * A new newFixedThreadPool can execute runnables |
| 122 | */ |
| 123 | public void testNewFixedThreadPool1() { |
| 124 | ExecutorService e = Executors.newFixedThreadPool(2); |
| 125 | e.execute(new NoOpRunnable()); |
| 126 | e.execute(new NoOpRunnable()); |
| 127 | e.execute(new NoOpRunnable()); |
| 128 | joinPool(e); |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * A new newFixedThreadPool with given ThreadFactory can execute runnables |
| 133 | */ |
| 134 | public void testNewFixedThreadPool2() { |
| 135 | ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory()); |
| 136 | e.execute(new NoOpRunnable()); |
| 137 | e.execute(new NoOpRunnable()); |
| 138 | e.execute(new NoOpRunnable()); |
| 139 | joinPool(e); |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * A new newFixedThreadPool with null ThreadFactory throws NPE |
| 144 | */ |
| 145 | public void testNewFixedThreadPool3() { |
| 146 | try { |
| 147 | ExecutorService e = Executors.newFixedThreadPool(2, null); |
| 148 | shouldThrow(); |
| 149 | } catch (NullPointerException success) {} |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * A new newFixedThreadPool with 0 threads throws IAE |
| 154 | */ |
| 155 | public void testNewFixedThreadPool4() { |
| 156 | try { |
| 157 | ExecutorService e = Executors.newFixedThreadPool(0); |
| 158 | shouldThrow(); |
| 159 | } catch (IllegalArgumentException success) {} |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * An unconfigurable newFixedThreadPool can execute runnables |
| 164 | */ |
| 165 | public void testUnconfigurableExecutorService() { |
| 166 | ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2)); |
| 167 | e.execute(new NoOpRunnable()); |
| 168 | e.execute(new NoOpRunnable()); |
| 169 | e.execute(new NoOpRunnable()); |
| 170 | joinPool(e); |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * unconfigurableExecutorService(null) throws NPE |
| 175 | */ |
| 176 | public void testUnconfigurableExecutorServiceNPE() { |
| 177 | try { |
| 178 | ExecutorService e = Executors.unconfigurableExecutorService(null); |
| 179 | shouldThrow(); |
| 180 | } catch (NullPointerException success) {} |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * unconfigurableScheduledExecutorService(null) throws NPE |
| 185 | */ |
| 186 | public void testUnconfigurableScheduledExecutorServiceNPE() { |
| 187 | try { |
| 188 | ExecutorService e = Executors.unconfigurableScheduledExecutorService(null); |
| 189 | shouldThrow(); |
| 190 | } catch (NullPointerException success) {} |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * a newSingleThreadScheduledExecutor successfully runs delayed task |
| 195 | */ |
| 196 | public void testNewSingleThreadScheduledExecutor() throws Exception { |
| 197 | ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor(); |
| 198 | try { |
| 199 | final CountDownLatch proceed = new CountDownLatch(1); |
| 200 | final Runnable task = new CheckedRunnable() { |
| 201 | public void realRun() { |
| 202 | await(proceed); |
| 203 | }}; |
| 204 | long startTime = System.nanoTime(); |
| 205 | Future f = p.schedule(Executors.callable(task, Boolean.TRUE), |
| 206 | timeoutMillis(), MILLISECONDS); |
| 207 | assertFalse(f.isDone()); |
| 208 | proceed.countDown(); |
| 209 | assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS)); |
| 210 | assertSame(Boolean.TRUE, f.get()); |
| 211 | assertTrue(f.isDone()); |
| 212 | assertFalse(f.isCancelled()); |
| 213 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 214 | } finally { |
| 215 | joinPool(p); |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * a newScheduledThreadPool successfully runs delayed task |
| 221 | */ |
| 222 | public void testNewScheduledThreadPool() throws Exception { |
| 223 | ScheduledExecutorService p = Executors.newScheduledThreadPool(2); |
| 224 | try { |
| 225 | final CountDownLatch proceed = new CountDownLatch(1); |
| 226 | final Runnable task = new CheckedRunnable() { |
| 227 | public void realRun() { |
| 228 | await(proceed); |
| 229 | }}; |
| 230 | long startTime = System.nanoTime(); |
| 231 | Future f = p.schedule(Executors.callable(task, Boolean.TRUE), |
| 232 | timeoutMillis(), MILLISECONDS); |
| 233 | assertFalse(f.isDone()); |
| 234 | proceed.countDown(); |
| 235 | assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS)); |
| 236 | assertSame(Boolean.TRUE, f.get()); |
| 237 | assertTrue(f.isDone()); |
| 238 | assertFalse(f.isCancelled()); |
| 239 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 240 | } finally { |
| 241 | joinPool(p); |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | /** |
| 246 | * an unconfigurable newScheduledThreadPool successfully runs delayed task |
| 247 | */ |
| 248 | public void testUnconfigurableScheduledExecutorService() throws Exception { |
| 249 | ScheduledExecutorService p = |
| 250 | Executors.unconfigurableScheduledExecutorService |
| 251 | (Executors.newScheduledThreadPool(2)); |
| 252 | try { |
| 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 | } finally { |
| 269 | joinPool(p); |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | /** |
| 274 | * Future.get on submitted tasks will time out if they compute too long. |
| 275 | */ |
| 276 | public void testTimedCallable() throws Exception { |
| 277 | final ExecutorService[] executors = { |
| 278 | Executors.newSingleThreadExecutor(), |
| 279 | Executors.newCachedThreadPool(), |
| 280 | Executors.newFixedThreadPool(2), |
| 281 | Executors.newScheduledThreadPool(2), |
| 282 | }; |
| 283 | |
| 284 | final Runnable sleeper = new CheckedInterruptedRunnable() { |
| 285 | public void realRun() throws InterruptedException { |
| 286 | delay(LONG_DELAY_MS); |
| 287 | }}; |
| 288 | |
| 289 | List<Thread> threads = new ArrayList<Thread>(); |
| 290 | for (final ExecutorService executor : executors) { |
| 291 | threads.add(newStartedThread(new CheckedRunnable() { |
| 292 | public void realRun() { |
Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 293 | Future future = executor.submit(sleeper); |
| 294 | assertFutureTimesOut(future); |
| 295 | }})); |
| 296 | } |
| 297 | for (Thread thread : threads) |
| 298 | awaitTermination(thread); |
| 299 | for (ExecutorService executor : executors) |
| 300 | joinPool(executor); |
| 301 | } |
| 302 | |
| 303 | /** |
| 304 | * ThreadPoolExecutor using defaultThreadFactory has |
| 305 | * specified group, priority, daemon status, and name |
| 306 | */ |
| 307 | public void testDefaultThreadFactory() throws Exception { |
| 308 | final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
| 309 | final CountDownLatch done = new CountDownLatch(1); |
| 310 | Runnable r = new CheckedRunnable() { |
| 311 | public void realRun() { |
| 312 | try { |
| 313 | Thread current = Thread.currentThread(); |
| 314 | assertTrue(!current.isDaemon()); |
| 315 | assertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
| 316 | ThreadGroup g = current.getThreadGroup(); |
| 317 | SecurityManager s = System.getSecurityManager(); |
| 318 | if (s != null) |
| 319 | assertTrue(g == s.getThreadGroup()); |
| 320 | else |
| 321 | assertTrue(g == egroup); |
| 322 | String name = current.getName(); |
| 323 | assertTrue(name.endsWith("thread-1")); |
| 324 | } catch (SecurityException ok) { |
| 325 | // Also pass if not allowed to change setting |
| 326 | } |
| 327 | done.countDown(); |
| 328 | }}; |
| 329 | ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory()); |
| 330 | |
| 331 | e.execute(r); |
| 332 | await(done); |
| 333 | |
| 334 | try { |
| 335 | e.shutdown(); |
| 336 | } catch (SecurityException ok) { |
| 337 | } |
| 338 | |
| 339 | joinPool(e); |
| 340 | } |
| 341 | |
| 342 | /** |
| 343 | * ThreadPoolExecutor using privilegedThreadFactory has |
| 344 | * specified group, priority, daemon status, name, |
| 345 | * access control context and context class loader |
| 346 | */ |
| 347 | public void testPrivilegedThreadFactory() throws Exception { |
| 348 | final CountDownLatch done = new CountDownLatch(1); |
| 349 | Runnable r = new CheckedRunnable() { |
| 350 | public void realRun() throws Exception { |
| 351 | final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
| 352 | final ClassLoader thisccl = Thread.currentThread().getContextClassLoader(); |
Narayan Kamath | 05fd64a | 2015-04-30 10:36:15 +0100 | [diff] [blame] | 353 | // android-note: Removed unsupported access controller check. |
| 354 | // final AccessControlContext thisacc = AccessController.getContext(); |
Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 355 | Runnable r = new CheckedRunnable() { |
| 356 | public void realRun() { |
| 357 | Thread current = Thread.currentThread(); |
| 358 | assertTrue(!current.isDaemon()); |
| 359 | assertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
| 360 | ThreadGroup g = current.getThreadGroup(); |
| 361 | SecurityManager s = System.getSecurityManager(); |
| 362 | if (s != null) |
| 363 | assertTrue(g == s.getThreadGroup()); |
| 364 | else |
| 365 | assertTrue(g == egroup); |
| 366 | String name = current.getName(); |
| 367 | assertTrue(name.endsWith("thread-1")); |
| 368 | assertSame(thisccl, current.getContextClassLoader()); |
Narayan Kamath | 05fd64a | 2015-04-30 10:36:15 +0100 | [diff] [blame] | 369 | // assertEquals(thisacc, AccessController.getContext()); |
Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 370 | done.countDown(); |
| 371 | }}; |
| 372 | ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory()); |
| 373 | e.execute(r); |
| 374 | await(done); |
| 375 | e.shutdown(); |
| 376 | joinPool(e); |
| 377 | }}; |
| 378 | |
| 379 | runWithPermissions(r, |
| 380 | new RuntimePermission("getClassLoader"), |
| 381 | new RuntimePermission("setContextClassLoader"), |
| 382 | new RuntimePermission("modifyThread")); |
| 383 | } |
| 384 | |
| 385 | boolean haveCCLPermissions() { |
| 386 | SecurityManager sm = System.getSecurityManager(); |
| 387 | if (sm != null) { |
| 388 | try { |
| 389 | sm.checkPermission(new RuntimePermission("setContextClassLoader")); |
| 390 | sm.checkPermission(new RuntimePermission("getClassLoader")); |
| 391 | } catch (AccessControlException e) { |
| 392 | return false; |
| 393 | } |
| 394 | } |
| 395 | return true; |
| 396 | } |
| 397 | |
| 398 | void checkCCL() { |
| 399 | SecurityManager sm = System.getSecurityManager(); |
| 400 | if (sm != null) { |
| 401 | sm.checkPermission(new RuntimePermission("setContextClassLoader")); |
| 402 | sm.checkPermission(new RuntimePermission("getClassLoader")); |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | class CheckCCL implements Callable<Object> { |
| 407 | public Object call() { |
| 408 | checkCCL(); |
| 409 | return null; |
| 410 | } |
| 411 | } |
| 412 | |
| 413 | /** |
| 414 | * Without class loader permissions, creating |
| 415 | * privilegedCallableUsingCurrentClassLoader throws ACE |
| 416 | */ |
| 417 | public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() { |
| 418 | Runnable r = new CheckedRunnable() { |
| 419 | public void realRun() throws Exception { |
| 420 | if (System.getSecurityManager() == null) |
| 421 | return; |
| 422 | try { |
| 423 | Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable()); |
| 424 | shouldThrow(); |
| 425 | } catch (AccessControlException success) {} |
| 426 | }}; |
| 427 | |
| 428 | runWithoutPermissions(r); |
| 429 | } |
| 430 | |
| 431 | /** |
| 432 | * With class loader permissions, calling |
| 433 | * privilegedCallableUsingCurrentClassLoader does not throw ACE |
| 434 | */ |
| 435 | public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception { |
| 436 | Runnable r = new CheckedRunnable() { |
| 437 | public void realRun() throws Exception { |
| 438 | Executors.privilegedCallableUsingCurrentClassLoader |
| 439 | (new NoOpCallable()) |
| 440 | .call(); |
| 441 | }}; |
| 442 | |
| 443 | runWithPermissions(r, |
| 444 | new RuntimePermission("getClassLoader"), |
| 445 | new RuntimePermission("setContextClassLoader")); |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * Without permissions, calling privilegedCallable throws ACE |
| 450 | */ |
| 451 | public void testPrivilegedCallableWithNoPrivs() throws Exception { |
| 452 | // Avoid classloader-related SecurityExceptions in swingui.TestRunner |
| 453 | Executors.privilegedCallable(new CheckCCL()); |
| 454 | |
| 455 | Runnable r = new CheckedRunnable() { |
| 456 | public void realRun() throws Exception { |
| 457 | if (System.getSecurityManager() == null) |
| 458 | return; |
| 459 | Callable task = Executors.privilegedCallable(new CheckCCL()); |
| 460 | try { |
| 461 | task.call(); |
| 462 | shouldThrow(); |
| 463 | } catch (AccessControlException success) {} |
| 464 | }}; |
| 465 | |
| 466 | runWithoutPermissions(r); |
| 467 | |
| 468 | // It seems rather difficult to test that the |
| 469 | // AccessControlContext of the privilegedCallable is used |
| 470 | // instead of its caller. Below is a failed attempt to do |
| 471 | // that, which does not work because the AccessController |
| 472 | // cannot capture the internal state of the current Policy. |
| 473 | // It would be much more work to differentiate based on, |
| 474 | // e.g. CodeSource. |
| 475 | |
| 476 | // final AccessControlContext[] noprivAcc = new AccessControlContext[1]; |
| 477 | // final Callable[] task = new Callable[1]; |
| 478 | |
| 479 | // runWithPermissions |
| 480 | // (new CheckedRunnable() { |
| 481 | // public void realRun() { |
| 482 | // if (System.getSecurityManager() == null) |
| 483 | // return; |
| 484 | // noprivAcc[0] = AccessController.getContext(); |
| 485 | // task[0] = Executors.privilegedCallable(new CheckCCL()); |
| 486 | // try { |
| 487 | // AccessController.doPrivileged(new PrivilegedAction<Void>() { |
| 488 | // public Void run() { |
| 489 | // checkCCL(); |
| 490 | // return null; |
| 491 | // }}, noprivAcc[0]); |
| 492 | // shouldThrow(); |
| 493 | // } catch (AccessControlException success) {} |
| 494 | // }}); |
| 495 | |
| 496 | // runWithPermissions |
| 497 | // (new CheckedRunnable() { |
| 498 | // public void realRun() throws Exception { |
| 499 | // if (System.getSecurityManager() == null) |
| 500 | // return; |
| 501 | // // Verify that we have an underprivileged ACC |
| 502 | // try { |
| 503 | // AccessController.doPrivileged(new PrivilegedAction<Void>() { |
| 504 | // public Void run() { |
| 505 | // checkCCL(); |
| 506 | // return null; |
| 507 | // }}, noprivAcc[0]); |
| 508 | // shouldThrow(); |
| 509 | // } catch (AccessControlException success) {} |
| 510 | |
| 511 | // try { |
| 512 | // task[0].call(); |
| 513 | // shouldThrow(); |
| 514 | // } catch (AccessControlException success) {} |
| 515 | // }}, |
| 516 | // new RuntimePermission("getClassLoader"), |
| 517 | // new RuntimePermission("setContextClassLoader")); |
| 518 | } |
| 519 | |
| 520 | /** |
| 521 | * With permissions, calling privilegedCallable succeeds |
| 522 | */ |
| 523 | public void testPrivilegedCallableWithPrivs() throws Exception { |
| 524 | Runnable r = new CheckedRunnable() { |
| 525 | public void realRun() throws Exception { |
| 526 | Executors.privilegedCallable(new CheckCCL()).call(); |
| 527 | }}; |
| 528 | |
| 529 | runWithPermissions(r, |
| 530 | new RuntimePermission("getClassLoader"), |
| 531 | new RuntimePermission("setContextClassLoader")); |
| 532 | } |
| 533 | |
| 534 | /** |
| 535 | * callable(Runnable) returns null when called |
| 536 | */ |
| 537 | public void testCallable1() throws Exception { |
| 538 | Callable c = Executors.callable(new NoOpRunnable()); |
| 539 | assertNull(c.call()); |
| 540 | } |
| 541 | |
| 542 | /** |
| 543 | * callable(Runnable, result) returns result when called |
| 544 | */ |
| 545 | public void testCallable2() throws Exception { |
| 546 | Callable c = Executors.callable(new NoOpRunnable(), one); |
| 547 | assertSame(one, c.call()); |
| 548 | } |
| 549 | |
| 550 | /** |
| 551 | * callable(PrivilegedAction) returns its result when called |
| 552 | */ |
| 553 | public void testCallable3() throws Exception { |
| 554 | Callable c = Executors.callable(new PrivilegedAction() { |
| 555 | public Object run() { return one; }}); |
| 556 | assertSame(one, c.call()); |
| 557 | } |
| 558 | |
| 559 | /** |
| 560 | * callable(PrivilegedExceptionAction) returns its result when called |
| 561 | */ |
| 562 | public void testCallable4() throws Exception { |
| 563 | Callable c = Executors.callable(new PrivilegedExceptionAction() { |
| 564 | public Object run() { return one; }}); |
| 565 | assertSame(one, c.call()); |
| 566 | } |
| 567 | |
| 568 | /** |
| 569 | * callable(null Runnable) throws NPE |
| 570 | */ |
| 571 | public void testCallableNPE1() { |
| 572 | try { |
| 573 | Callable c = Executors.callable((Runnable) null); |
| 574 | shouldThrow(); |
| 575 | } catch (NullPointerException success) {} |
| 576 | } |
| 577 | |
| 578 | /** |
| 579 | * callable(null, result) throws NPE |
| 580 | */ |
| 581 | public void testCallableNPE2() { |
| 582 | try { |
| 583 | Callable c = Executors.callable((Runnable) null, one); |
| 584 | shouldThrow(); |
| 585 | } catch (NullPointerException success) {} |
| 586 | } |
| 587 | |
| 588 | /** |
| 589 | * callable(null PrivilegedAction) throws NPE |
| 590 | */ |
| 591 | public void testCallableNPE3() { |
| 592 | try { |
| 593 | Callable c = Executors.callable((PrivilegedAction) null); |
| 594 | shouldThrow(); |
| 595 | } catch (NullPointerException success) {} |
| 596 | } |
| 597 | |
| 598 | /** |
| 599 | * callable(null PrivilegedExceptionAction) throws NPE |
| 600 | */ |
| 601 | public void testCallableNPE4() { |
| 602 | try { |
| 603 | Callable c = Executors.callable((PrivilegedExceptionAction) null); |
| 604 | shouldThrow(); |
| 605 | } catch (NullPointerException success) {} |
| 606 | } |
| 607 | |
| 608 | } |