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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.math.BigInteger; |
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import java.security.*; |
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|
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return new TestSuite(ExecutorsTest.class); |
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} |
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|
24 |
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static class TimedCallable<T> implements Callable<T> { |
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private final ExecutorService exec; |
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private final Callable<T> func; |
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private final long msecs; |
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|
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TimedCallable(ExecutorService exec, Callable<T> func, long msecs) { |
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this.exec = exec; |
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this.func = func; |
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this.msecs = msecs; |
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} |
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|
35 |
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public T call() throws Exception { |
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Future<T> ftask = exec.submit(func); |
37 |
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try { |
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return ftask.get(msecs, TimeUnit.MILLISECONDS); |
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} finally { |
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ftask.cancel(true); |
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} |
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} |
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} |
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|
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|
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private static class Fib implements Callable<BigInteger> { |
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private final BigInteger n; |
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Fib(long n) { |
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if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n); |
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this.n = BigInteger.valueOf(n); |
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} |
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public BigInteger call() { |
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BigInteger f1 = BigInteger.ONE; |
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BigInteger f2 = f1; |
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for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) { |
56 |
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BigInteger t = f1.add(f2); |
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f1 = f2; |
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f2 = t; |
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} |
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return f1; |
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} |
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}; |
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|
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/** |
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* A newCachedThreadPool can execute runnables |
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*/ |
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* a newSingleThreadScheduledExecutor successfully runs delayed task |
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*/ |
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public void testNewSingleThreadScheduledExecutor() throws Exception { |
184 |
< |
try { |
185 |
< |
TrackedCallable callable = new TrackedCallable(); |
186 |
< |
ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor(); |
187 |
< |
Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
188 |
< |
assertFalse(callable.done); |
189 |
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Thread.sleep(MEDIUM_DELAY_MS); |
190 |
< |
assertTrue(callable.done); |
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assertEquals(Boolean.TRUE, f.get()); |
231 |
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joinPool(p1); |
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< |
} catch (RejectedExecutionException e) {} |
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> |
TrackedCallable callable = new TrackedCallable(); |
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ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor(); |
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> |
Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS); |
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> |
assertFalse(callable.done); |
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Thread.sleep(MEDIUM_DELAY_MS); |
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> |
assertTrue(callable.done); |
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assertEquals(Boolean.TRUE, f.get()); |
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joinPool(p1); |
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} |
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|
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/** |
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* a newScheduledThreadPool successfully runs delayed task |
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*/ |
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public void testnewScheduledThreadPool() throws Exception { |
198 |
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try { |
199 |
< |
TrackedCallable callable = new TrackedCallable(); |
200 |
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ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2); |
201 |
< |
Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
202 |
< |
assertFalse(callable.done); |
203 |
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Thread.sleep(MEDIUM_DELAY_MS); |
204 |
< |
assertTrue(callable.done); |
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< |
assertEquals(Boolean.TRUE, f.get()); |
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joinPool(p1); |
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< |
} catch (RejectedExecutionException e) {} |
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> |
TrackedCallable callable = new TrackedCallable(); |
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ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2); |
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Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS); |
201 |
> |
assertFalse(callable.done); |
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> |
Thread.sleep(MEDIUM_DELAY_MS); |
203 |
> |
assertTrue(callable.done); |
204 |
> |
assertEquals(Boolean.TRUE, f.get()); |
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> |
joinPool(p1); |
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} |
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|
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/** |
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* an unconfigurable newScheduledThreadPool successfully runs delayed task |
209 |
> |
* an unconfigurable newScheduledThreadPool successfully runs delayed task |
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*/ |
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public void testunconfigurableScheduledExecutorService() throws Exception { |
212 |
< |
try { |
213 |
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TrackedCallable callable = new TrackedCallable(); |
214 |
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ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2)); |
215 |
< |
Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
216 |
< |
assertFalse(callable.done); |
217 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
218 |
< |
assertTrue(callable.done); |
219 |
< |
assertEquals(Boolean.TRUE, f.get()); |
263 |
< |
joinPool(p1); |
264 |
< |
} catch (RejectedExecutionException e) {} |
212 |
> |
TrackedCallable callable = new TrackedCallable(); |
213 |
> |
ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2)); |
214 |
> |
Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS); |
215 |
> |
assertFalse(callable.done); |
216 |
> |
Thread.sleep(MEDIUM_DELAY_MS); |
217 |
> |
assertTrue(callable.done); |
218 |
> |
assertEquals(Boolean.TRUE, f.get()); |
219 |
> |
joinPool(p1); |
220 |
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} |
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|
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/** |
223 |
< |
* timeouts from execute will time out if they compute too long. |
223 |
> |
* Future.get on submitted tasks will time out if they compute too long. |
224 |
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*/ |
225 |
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public void testTimedCallable() throws Exception { |
226 |
< |
int N = 10000; |
227 |
< |
ExecutorService executor = Executors.newSingleThreadExecutor(); |
228 |
< |
List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N); |
229 |
< |
try { |
230 |
< |
long startTime = System.currentTimeMillis(); |
231 |
< |
|
232 |
< |
long i = 0; |
233 |
< |
while (tasks.size() < N) { |
234 |
< |
tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1)); |
235 |
< |
i += 10; |
236 |
< |
} |
237 |
< |
|
238 |
< |
int iters = 0; |
239 |
< |
BigInteger sum = BigInteger.ZERO; |
285 |
< |
for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) { |
226 |
> |
final Runnable sleeper = |
227 |
> |
new RunnableShouldThrow(InterruptedException.class) { |
228 |
> |
public void realRun() throws InterruptedException { |
229 |
> |
Thread.sleep(LONG_DELAY_MS); |
230 |
> |
}}; |
231 |
> |
for (ExecutorService executor : |
232 |
> |
new ExecutorService[] { |
233 |
> |
Executors.newSingleThreadExecutor(), |
234 |
> |
Executors.newCachedThreadPool(), |
235 |
> |
Executors.newFixedThreadPool(2), |
236 |
> |
Executors.newScheduledThreadPool(2), |
237 |
> |
}) { |
238 |
> |
try { |
239 |
> |
Future future = executor.submit(sleeper); |
240 |
|
try { |
241 |
< |
++iters; |
242 |
< |
sum = sum.add(it.next().call()); |
243 |
< |
} |
244 |
< |
catch (TimeoutException success) { |
245 |
< |
assertTrue(iters > 0); |
292 |
< |
return; |
241 |
> |
future.get(SHORT_DELAY_MS, MILLISECONDS); |
242 |
> |
shouldThrow(); |
243 |
> |
} catch (TimeoutException success) { |
244 |
> |
} finally { |
245 |
> |
future.cancel(true); |
246 |
|
} |
247 |
|
} |
248 |
< |
// if by chance we didn't ever time out, total time must be small |
249 |
< |
long elapsed = System.currentTimeMillis() - startTime; |
250 |
< |
assertTrue(elapsed < N); |
298 |
< |
} |
299 |
< |
finally { |
300 |
< |
joinPool(executor); |
248 |
> |
finally { |
249 |
> |
joinPool(executor); |
250 |
> |
} |
251 |
|
} |
252 |
|
} |
253 |
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|
260 |
|
final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
261 |
|
Runnable r = new Runnable() { |
262 |
|
public void run() { |
263 |
< |
try { |
264 |
< |
Thread current = Thread.currentThread(); |
265 |
< |
threadAssertTrue(!current.isDaemon()); |
266 |
< |
threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
267 |
< |
ThreadGroup g = current.getThreadGroup(); |
268 |
< |
SecurityManager s = System.getSecurityManager(); |
269 |
< |
if (s != null) |
270 |
< |
threadAssertTrue(g == s.getThreadGroup()); |
271 |
< |
else |
272 |
< |
threadAssertTrue(g == egroup); |
273 |
< |
String name = current.getName(); |
274 |
< |
threadAssertTrue(name.endsWith("thread-1")); |
275 |
< |
} catch (SecurityException ok) { |
276 |
< |
// Also pass if not allowed to change setting |
277 |
< |
} |
263 |
> |
try { |
264 |
> |
Thread current = Thread.currentThread(); |
265 |
> |
threadAssertTrue(!current.isDaemon()); |
266 |
> |
threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
267 |
> |
ThreadGroup g = current.getThreadGroup(); |
268 |
> |
SecurityManager s = System.getSecurityManager(); |
269 |
> |
if (s != null) |
270 |
> |
threadAssertTrue(g == s.getThreadGroup()); |
271 |
> |
else |
272 |
> |
threadAssertTrue(g == egroup); |
273 |
> |
String name = current.getName(); |
274 |
> |
threadAssertTrue(name.endsWith("thread-1")); |
275 |
> |
} catch (SecurityException ok) { |
276 |
> |
// Also pass if not allowed to change setting |
277 |
> |
} |
278 |
|
} |
279 |
|
}; |
280 |
|
ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory()); |
313 |
|
final AccessControlContext thisacc = AccessController.getContext(); |
314 |
|
Runnable r = new Runnable() { |
315 |
|
public void run() { |
316 |
< |
try { |
317 |
< |
Thread current = Thread.currentThread(); |
318 |
< |
threadAssertTrue(!current.isDaemon()); |
319 |
< |
threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
320 |
< |
ThreadGroup g = current.getThreadGroup(); |
321 |
< |
SecurityManager s = System.getSecurityManager(); |
322 |
< |
if (s != null) |
323 |
< |
threadAssertTrue(g == s.getThreadGroup()); |
324 |
< |
else |
325 |
< |
threadAssertTrue(g == egroup); |
326 |
< |
String name = current.getName(); |
327 |
< |
threadAssertTrue(name.endsWith("thread-1")); |
328 |
< |
threadAssertTrue(thisccl == current.getContextClassLoader()); |
329 |
< |
threadAssertTrue(thisacc.equals(AccessController.getContext())); |
330 |
< |
} catch (SecurityException ok) { |
331 |
< |
// Also pass if not allowed to change settings |
332 |
< |
} |
316 |
> |
try { |
317 |
> |
Thread current = Thread.currentThread(); |
318 |
> |
threadAssertTrue(!current.isDaemon()); |
319 |
> |
threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
320 |
> |
ThreadGroup g = current.getThreadGroup(); |
321 |
> |
SecurityManager s = System.getSecurityManager(); |
322 |
> |
if (s != null) |
323 |
> |
threadAssertTrue(g == s.getThreadGroup()); |
324 |
> |
else |
325 |
> |
threadAssertTrue(g == egroup); |
326 |
> |
String name = current.getName(); |
327 |
> |
threadAssertTrue(name.endsWith("thread-1")); |
328 |
> |
threadAssertTrue(thisccl == current.getContextClassLoader()); |
329 |
> |
threadAssertTrue(thisacc.equals(AccessController.getContext())); |
330 |
> |
} catch (SecurityException ok) { |
331 |
> |
// Also pass if not allowed to change settings |
332 |
> |
} |
333 |
|
} |
334 |
|
}; |
335 |
|
ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory()); |
345 |
|
} finally { |
346 |
|
joinPool(e); |
347 |
|
} |
398 |
– |
|
348 |
|
} |
349 |
|
|
350 |
|
void checkCCL() { |
368 |
|
* privilegedCallableUsingCurrentClassLoader throws ACE |
369 |
|
*/ |
370 |
|
public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() { |
371 |
< |
Policy savedPolicy = null; |
371 |
> |
Policy savedPolicy = null; |
372 |
|
try { |
373 |
|
savedPolicy = Policy.getPolicy(); |
374 |
|
AdjustablePolicy policy = new AdjustablePolicy(); |
400 |
|
* privilegedCallableUsingCurrentClassLoader does not throw ACE |
401 |
|
*/ |
402 |
|
public void testprivilegedCallableUsingCCLWithPrivs() throws Exception { |
403 |
< |
Policy savedPolicy = null; |
403 |
> |
Policy savedPolicy = null; |
404 |
|
try { |
405 |
|
savedPolicy = Policy.getPolicy(); |
406 |
|
AdjustablePolicy policy = new AdjustablePolicy(); |
461 |
|
* With permissions, calling privilegedCallable succeeds |
462 |
|
*/ |
463 |
|
public void testprivilegedCallableWithPrivs() throws Exception { |
464 |
< |
Policy savedPolicy = null; |
464 |
> |
Policy savedPolicy = null; |
465 |
|
try { |
466 |
|
savedPolicy = Policy.getPolicy(); |
467 |
|
AdjustablePolicy policy = new AdjustablePolicy(); |
493 |
|
*/ |
494 |
|
public void testCallable2() throws Exception { |
495 |
|
Callable c = Executors.callable(new NoOpRunnable(), one); |
496 |
< |
assertEquals(one, c.call()); |
496 |
> |
assertSame(one, c.call()); |
497 |
|
} |
498 |
|
|
499 |
|
/** |
502 |
|
public void testCallable3() throws Exception { |
503 |
|
Callable c = Executors.callable(new PrivilegedAction() { |
504 |
|
public Object run() { return one; }}); |
505 |
< |
assertEquals(one, c.call()); |
505 |
> |
assertSame(one, c.call()); |
506 |
|
} |
507 |
|
|
508 |
|
/** |
511 |
|
public void testCallable4() throws Exception { |
512 |
|
Callable c = Executors.callable(new PrivilegedExceptionAction() { |
513 |
|
public Object run() { return one; }}); |
514 |
< |
assertEquals(one, c.call()); |
514 |
> |
assertSame(one, c.call()); |
515 |
|
} |
516 |
|
|
517 |
|
|