7 |
|
*/ |
8 |
|
|
9 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
+ |
import static java.util.concurrent.TimeUnit.MINUTES; |
11 |
|
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
12 |
|
|
13 |
|
import java.io.ByteArrayInputStream; |
16 |
|
import java.io.ObjectOutputStream; |
17 |
|
import java.lang.management.ManagementFactory; |
18 |
|
import java.lang.management.ThreadInfo; |
19 |
+ |
import java.lang.management.ThreadMXBean; |
20 |
|
import java.lang.reflect.Constructor; |
21 |
|
import java.lang.reflect.Method; |
22 |
|
import java.lang.reflect.Modifier; |
39 |
|
import java.util.concurrent.Callable; |
40 |
|
import java.util.concurrent.CountDownLatch; |
41 |
|
import java.util.concurrent.CyclicBarrier; |
42 |
+ |
import java.util.concurrent.ExecutionException; |
43 |
+ |
import java.util.concurrent.Executors; |
44 |
|
import java.util.concurrent.ExecutorService; |
45 |
+ |
import java.util.concurrent.ForkJoinPool; |
46 |
|
import java.util.concurrent.Future; |
47 |
|
import java.util.concurrent.RecursiveAction; |
48 |
|
import java.util.concurrent.RecursiveTask; |
70 |
|
* |
71 |
|
* <ol> |
72 |
|
* |
73 |
< |
* <li> All assertions in code running in generated threads must use |
73 |
> |
* <li>All assertions in code running in generated threads must use |
74 |
|
* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link |
75 |
|
* #threadAssertEquals}, or {@link #threadAssertNull}, (not |
76 |
|
* {@code fail}, {@code assertTrue}, etc.) It is OK (but not |
77 |
|
* particularly recommended) for other code to use these forms too. |
78 |
|
* Only the most typically used JUnit assertion methods are defined |
79 |
< |
* this way, but enough to live with.</li> |
79 |
> |
* this way, but enough to live with. |
80 |
|
* |
81 |
< |
* <li> If you override {@link #setUp} or {@link #tearDown}, make sure |
81 |
> |
* <li>If you override {@link #setUp} or {@link #tearDown}, make sure |
82 |
|
* to invoke {@code super.setUp} and {@code super.tearDown} within |
83 |
|
* them. These methods are used to clear and check for thread |
84 |
< |
* assertion failures.</li> |
84 |
> |
* assertion failures. |
85 |
|
* |
86 |
|
* <li>All delays and timeouts must use one of the constants {@code |
87 |
|
* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS}, |
92 |
|
* is always discriminable as larger than SHORT and smaller than |
93 |
|
* MEDIUM. And so on. These constants are set to conservative values, |
94 |
|
* but even so, if there is ever any doubt, they can all be increased |
95 |
< |
* in one spot to rerun tests on slower platforms.</li> |
95 |
> |
* in one spot to rerun tests on slower platforms. |
96 |
|
* |
97 |
< |
* <li> All threads generated must be joined inside each test case |
97 |
> |
* <li>All threads generated must be joined inside each test case |
98 |
|
* method (or {@code fail} to do so) before returning from the |
99 |
|
* method. The {@code joinPool} method can be used to do this when |
100 |
< |
* using Executors.</li> |
100 |
> |
* using Executors. |
101 |
|
* |
102 |
|
* </ol> |
103 |
|
* |
104 |
|
* <p><b>Other notes</b> |
105 |
|
* <ul> |
106 |
|
* |
107 |
< |
* <li> Usually, there is one testcase method per JSR166 method |
107 |
> |
* <li>Usually, there is one testcase method per JSR166 method |
108 |
|
* covering "normal" operation, and then as many exception-testing |
109 |
|
* methods as there are exceptions the method can throw. Sometimes |
110 |
|
* there are multiple tests per JSR166 method when the different |
111 |
|
* "normal" behaviors differ significantly. And sometimes testcases |
112 |
|
* cover multiple methods when they cannot be tested in |
113 |
< |
* isolation.</li> |
113 |
> |
* isolation. |
114 |
|
* |
115 |
< |
* <li> The documentation style for testcases is to provide as javadoc |
115 |
> |
* <li>The documentation style for testcases is to provide as javadoc |
116 |
|
* a simple sentence or two describing the property that the testcase |
117 |
|
* method purports to test. The javadocs do not say anything about how |
118 |
< |
* the property is tested. To find out, read the code.</li> |
118 |
> |
* the property is tested. To find out, read the code. |
119 |
|
* |
120 |
< |
* <li> These tests are "conformance tests", and do not attempt to |
120 |
> |
* <li>These tests are "conformance tests", and do not attempt to |
121 |
|
* test throughput, latency, scalability or other performance factors |
122 |
|
* (see the separate "jtreg" tests for a set intended to check these |
123 |
|
* for the most central aspects of functionality.) So, most tests use |
124 |
|
* the smallest sensible numbers of threads, collection sizes, etc |
125 |
< |
* needed to check basic conformance.</li> |
125 |
> |
* needed to check basic conformance. |
126 |
|
* |
127 |
|
* <li>The test classes currently do not declare inclusion in |
128 |
|
* any particular package to simplify things for people integrating |
129 |
< |
* them in TCK test suites.</li> |
129 |
> |
* them in TCK test suites. |
130 |
|
* |
131 |
< |
* <li> As a convenience, the {@code main} of this class (JSR166TestCase) |
132 |
< |
* runs all JSR166 unit tests.</li> |
131 |
> |
* <li>As a convenience, the {@code main} of this class (JSR166TestCase) |
132 |
> |
* runs all JSR166 unit tests. |
133 |
|
* |
134 |
|
* </ul> |
135 |
|
*/ |
188 |
|
return (regex == null) ? null : Pattern.compile(regex); |
189 |
|
} |
190 |
|
|
191 |
< |
protected void runTest() throws Throwable { |
191 |
> |
static volatile TestCase currentTestCase; |
192 |
> |
static { |
193 |
> |
Runnable checkForWedgedTest = new Runnable() { public void run() { |
194 |
> |
// avoid spurious reports with enormous runsPerTest |
195 |
> |
final int timeoutMinutes = Math.max(runsPerTest / 10, 1); |
196 |
> |
for (TestCase lastTestCase = currentTestCase;;) { |
197 |
> |
try { MINUTES.sleep(timeoutMinutes); } |
198 |
> |
catch (InterruptedException unexpected) { break; } |
199 |
> |
if (lastTestCase == currentTestCase) { |
200 |
> |
System.err.println |
201 |
> |
("Looks like we're stuck running test: " |
202 |
> |
+ lastTestCase); |
203 |
> |
dumpTestThreads(); |
204 |
> |
// one stack dump is probably enough; more would be spam |
205 |
> |
break; |
206 |
> |
} |
207 |
> |
lastTestCase = currentTestCase; |
208 |
> |
}}}; |
209 |
> |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
210 |
> |
thread.setDaemon(true); |
211 |
> |
thread.start(); |
212 |
> |
} |
213 |
> |
|
214 |
> |
public void runBare() throws Throwable { |
215 |
> |
currentTestCase = this; |
216 |
|
if (methodFilter == null |
217 |
< |
|| methodFilter.matcher(toString()).find()) { |
218 |
< |
for (int i = 0; i < runsPerTest; i++) { |
219 |
< |
if (profileTests) |
220 |
< |
runTestProfiled(); |
221 |
< |
else |
222 |
< |
super.runTest(); |
223 |
< |
} |
217 |
> |
|| methodFilter.matcher(toString()).find()) |
218 |
> |
super.runBare(); |
219 |
> |
} |
220 |
> |
|
221 |
> |
protected void runTest() throws Throwable { |
222 |
> |
for (int i = 0; i < runsPerTest; i++) { |
223 |
> |
if (profileTests) |
224 |
> |
runTestProfiled(); |
225 |
> |
else |
226 |
> |
super.runTest(); |
227 |
|
} |
228 |
|
} |
229 |
|
|
230 |
|
protected void runTestProfiled() throws Throwable { |
231 |
< |
// Warmup run, notably to trigger all needed classloading. |
232 |
< |
super.runTest(); |
201 |
< |
long t0 = System.nanoTime(); |
202 |
< |
try { |
231 |
> |
for (int i = 0; i < 2; i++) { |
232 |
> |
long startTime = System.nanoTime(); |
233 |
|
super.runTest(); |
234 |
< |
} finally { |
235 |
< |
long elapsedMillis = millisElapsedSince(t0); |
236 |
< |
if (elapsedMillis >= profileThreshold) |
234 |
> |
long elapsedMillis = millisElapsedSince(startTime); |
235 |
> |
if (elapsedMillis < profileThreshold) |
236 |
> |
break; |
237 |
> |
// Never report first run of any test; treat it as a |
238 |
> |
// warmup run, notably to trigger all needed classloading, |
239 |
> |
if (i > 0) |
240 |
|
System.out.printf("%n%s: %d%n", toString(), elapsedMillis); |
241 |
|
} |
242 |
|
} |
314 |
|
public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; } |
315 |
|
public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; } |
316 |
|
public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; } |
317 |
< |
public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; } |
317 |
> |
public static boolean atLeastJava9() { |
318 |
> |
return JAVA_CLASS_VERSION >= 53.0 |
319 |
> |
// As of 2015-09, java9 still uses 52.0 class file version |
320 |
> |
|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$"); |
321 |
> |
} |
322 |
> |
public static boolean atLeastJava10() { |
323 |
> |
return JAVA_CLASS_VERSION >= 54.0 |
324 |
> |
|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$"); |
325 |
> |
} |
326 |
|
|
327 |
|
/** |
328 |
|
* Collects all JSR166 unit tests as one suite. |
410 |
|
"LongAdderTest", |
411 |
|
"SplittableRandomTest", |
412 |
|
"StampedLockTest", |
413 |
+ |
"SubmissionPublisherTest", |
414 |
|
"ThreadLocalRandom8Test", |
415 |
|
}; |
416 |
|
addNamedTestClasses(suite, java8TestClassNames); |
419 |
|
// Java9+ test classes |
420 |
|
if (atLeastJava9()) { |
421 |
|
String[] java9TestClassNames = { |
422 |
< |
"ThreadPoolExecutor9Test", |
422 |
> |
// Currently empty, but expecting varhandle tests |
423 |
|
}; |
424 |
|
addNamedTestClasses(suite, java9TestClassNames); |
425 |
|
} |
486 |
|
} else { |
487 |
|
return new TestSuite(); |
488 |
|
} |
447 |
– |
|
489 |
|
} |
490 |
|
|
491 |
|
// Delays for timing-dependent tests, in milliseconds. |
543 |
|
* the same test have no effect. |
544 |
|
*/ |
545 |
|
public void threadRecordFailure(Throwable t) { |
546 |
+ |
System.err.println(t); |
547 |
+ |
dumpTestThreads(); |
548 |
|
threadFailure.compareAndSet(null, t); |
549 |
|
} |
550 |
|
|
552 |
|
setDelays(); |
553 |
|
} |
554 |
|
|
555 |
+ |
void tearDownFail(String format, Object... args) { |
556 |
+ |
String msg = toString() + ": " + String.format(format, args); |
557 |
+ |
System.err.println(msg); |
558 |
+ |
dumpTestThreads(); |
559 |
+ |
throw new AssertionFailedError(msg); |
560 |
+ |
} |
561 |
+ |
|
562 |
|
/** |
563 |
|
* Extra checks that get done for all test cases. |
564 |
|
* |
586 |
|
} |
587 |
|
|
588 |
|
if (Thread.interrupted()) |
589 |
< |
throw new AssertionFailedError("interrupt status set in main thread"); |
589 |
> |
tearDownFail("interrupt status set in main thread"); |
590 |
|
|
591 |
|
checkForkJoinPoolThreadLeaks(); |
592 |
|
} |
593 |
|
|
594 |
|
/** |
595 |
< |
* Finds missing try { ... } finally { joinPool(e); } |
595 |
> |
* Finds missing PoolCleaners |
596 |
|
*/ |
597 |
|
void checkForkJoinPoolThreadLeaks() throws InterruptedException { |
598 |
< |
Thread[] survivors = new Thread[5]; |
598 |
> |
Thread[] survivors = new Thread[7]; |
599 |
|
int count = Thread.enumerate(survivors); |
600 |
|
for (int i = 0; i < count; i++) { |
601 |
|
Thread thread = survivors[i]; |
603 |
|
if (name.startsWith("ForkJoinPool-")) { |
604 |
|
// give thread some time to terminate |
605 |
|
thread.join(LONG_DELAY_MS); |
606 |
< |
if (!thread.isAlive()) continue; |
607 |
< |
throw new AssertionFailedError |
608 |
< |
(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n", |
559 |
< |
toString(), name)); |
606 |
> |
if (thread.isAlive()) |
607 |
> |
tearDownFail("Found leaked ForkJoinPool thread thread=%s", |
608 |
> |
thread); |
609 |
|
} |
610 |
|
} |
611 |
+ |
|
612 |
+ |
if (!ForkJoinPool.commonPool() |
613 |
+ |
.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS)) |
614 |
+ |
tearDownFail("ForkJoin common pool thread stuck"); |
615 |
|
} |
616 |
|
|
617 |
|
/** |
624 |
|
fail(reason); |
625 |
|
} catch (AssertionFailedError t) { |
626 |
|
threadRecordFailure(t); |
627 |
< |
fail(reason); |
627 |
> |
throw t; |
628 |
|
} |
629 |
|
} |
630 |
|
|
751 |
|
/** |
752 |
|
* Delays, via Thread.sleep, for the given millisecond delay, but |
753 |
|
* if the sleep is shorter than specified, may re-sleep or yield |
754 |
< |
* until time elapses. |
754 |
> |
* until time elapses. Ensures that the given time, as measured |
755 |
> |
* by System.nanoTime(), has elapsed. |
756 |
|
*/ |
757 |
|
static void delay(long millis) throws InterruptedException { |
758 |
< |
long startTime = System.nanoTime(); |
759 |
< |
long ns = millis * 1000 * 1000; |
760 |
< |
for (;;) { |
758 |
> |
long nanos = millis * (1000 * 1000); |
759 |
> |
final long wakeupTime = System.nanoTime() + nanos; |
760 |
> |
do { |
761 |
|
if (millis > 0L) |
762 |
|
Thread.sleep(millis); |
763 |
|
else // too short to sleep |
764 |
|
Thread.yield(); |
765 |
< |
long d = ns - (System.nanoTime() - startTime); |
766 |
< |
if (d > 0L) |
767 |
< |
millis = d / (1000 * 1000); |
768 |
< |
else |
769 |
< |
break; |
765 |
> |
nanos = wakeupTime - System.nanoTime(); |
766 |
> |
millis = nanos / (1000 * 1000); |
767 |
> |
} while (nanos >= 0L); |
768 |
> |
} |
769 |
> |
|
770 |
> |
/** |
771 |
> |
* Allows use of try-with-resources with per-test thread pools. |
772 |
> |
*/ |
773 |
> |
class PoolCleaner implements AutoCloseable { |
774 |
> |
private final ExecutorService pool; |
775 |
> |
public PoolCleaner(ExecutorService pool) { this.pool = pool; } |
776 |
> |
public void close() { joinPool(pool); } |
777 |
> |
} |
778 |
> |
|
779 |
> |
/** |
780 |
> |
* An extension of PoolCleaner that has an action to release the pool. |
781 |
> |
*/ |
782 |
> |
class PoolCleanerWithReleaser extends PoolCleaner { |
783 |
> |
private final Runnable releaser; |
784 |
> |
public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) { |
785 |
> |
super(pool); |
786 |
> |
this.releaser = releaser; |
787 |
|
} |
788 |
+ |
public void close() { |
789 |
+ |
try { |
790 |
+ |
releaser.run(); |
791 |
+ |
} finally { |
792 |
+ |
super.close(); |
793 |
+ |
} |
794 |
+ |
} |
795 |
+ |
} |
796 |
+ |
|
797 |
+ |
PoolCleaner cleaner(ExecutorService pool) { |
798 |
+ |
return new PoolCleaner(pool); |
799 |
+ |
} |
800 |
+ |
|
801 |
+ |
PoolCleaner cleaner(ExecutorService pool, Runnable releaser) { |
802 |
+ |
return new PoolCleanerWithReleaser(pool, releaser); |
803 |
+ |
} |
804 |
+ |
|
805 |
+ |
PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) { |
806 |
+ |
return new PoolCleanerWithReleaser(pool, releaser(latch)); |
807 |
+ |
} |
808 |
+ |
|
809 |
+ |
Runnable releaser(final CountDownLatch latch) { |
810 |
+ |
return new Runnable() { public void run() { |
811 |
+ |
do { latch.countDown(); } |
812 |
+ |
while (latch.getCount() > 0); |
813 |
+ |
}}; |
814 |
|
} |
815 |
|
|
816 |
|
/** |
817 |
|
* Waits out termination of a thread pool or fails doing so. |
818 |
|
*/ |
819 |
< |
void joinPool(ExecutorService exec) { |
819 |
> |
void joinPool(ExecutorService pool) { |
820 |
|
try { |
821 |
< |
exec.shutdown(); |
822 |
< |
if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
823 |
< |
fail("ExecutorService " + exec + |
824 |
< |
" did not terminate in a timely manner"); |
821 |
> |
pool.shutdown(); |
822 |
> |
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) { |
823 |
> |
try { |
824 |
> |
threadFail("ExecutorService " + pool + |
825 |
> |
" did not terminate in a timely manner"); |
826 |
> |
} finally { |
827 |
> |
// last resort, for the benefit of subsequent tests |
828 |
> |
pool.shutdownNow(); |
829 |
> |
pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS); |
830 |
> |
} |
831 |
> |
} |
832 |
|
} catch (SecurityException ok) { |
833 |
|
// Allowed in case test doesn't have privs |
834 |
|
} catch (InterruptedException fail) { |
835 |
< |
fail("Unexpected InterruptedException"); |
835 |
> |
threadFail("Unexpected InterruptedException"); |
836 |
|
} |
837 |
|
} |
838 |
|
|
839 |
+ |
/** Like Runnable, but with the freedom to throw anything */ |
840 |
+ |
interface Action { public void run() throws Throwable; } |
841 |
+ |
|
842 |
|
/** |
843 |
< |
* A debugging tool to print all stack traces, as jstack does. |
843 |
> |
* Runs all the given actions in parallel, failing if any fail. |
844 |
> |
* Useful for running multiple variants of tests that are |
845 |
> |
* necessarily individually slow because they must block. |
846 |
|
*/ |
847 |
< |
static void printAllStackTraces() { |
848 |
< |
for (ThreadInfo info : |
849 |
< |
ManagementFactory.getThreadMXBean() |
850 |
< |
.dumpAllThreads(true, true)) |
847 |
> |
void testInParallel(Action ... actions) { |
848 |
> |
ExecutorService pool = Executors.newCachedThreadPool(); |
849 |
> |
try (PoolCleaner cleaner = cleaner(pool)) { |
850 |
> |
ArrayList<Future<?>> futures = new ArrayList<>(actions.length); |
851 |
> |
for (final Action action : actions) |
852 |
> |
futures.add(pool.submit(new CheckedRunnable() { |
853 |
> |
public void realRun() throws Throwable { action.run();}})); |
854 |
> |
for (Future<?> future : futures) |
855 |
> |
try { |
856 |
> |
assertNull(future.get(LONG_DELAY_MS, MILLISECONDS)); |
857 |
> |
} catch (ExecutionException ex) { |
858 |
> |
threadUnexpectedException(ex.getCause()); |
859 |
> |
} catch (Exception ex) { |
860 |
> |
threadUnexpectedException(ex); |
861 |
> |
} |
862 |
> |
} |
863 |
> |
} |
864 |
> |
|
865 |
> |
/** |
866 |
> |
* A debugging tool to print stack traces of most threads, as jstack does. |
867 |
> |
* Uninteresting threads are filtered out. |
868 |
> |
*/ |
869 |
> |
static void dumpTestThreads() { |
870 |
> |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
871 |
> |
System.err.println("------ stacktrace dump start ------"); |
872 |
> |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
873 |
> |
String name = info.getThreadName(); |
874 |
> |
if ("Signal Dispatcher".equals(name)) |
875 |
> |
continue; |
876 |
> |
if ("Reference Handler".equals(name) |
877 |
> |
&& info.getLockName().startsWith("java.lang.ref.Reference$Lock")) |
878 |
> |
continue; |
879 |
> |
if ("Finalizer".equals(name) |
880 |
> |
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
881 |
> |
continue; |
882 |
> |
if ("checkForWedgedTest".equals(name)) |
883 |
> |
continue; |
884 |
|
System.err.print(info); |
885 |
+ |
} |
886 |
+ |
System.err.println("------ stacktrace dump end ------"); |
887 |
|
} |
888 |
|
|
889 |
|
/** |
903 |
|
delay(millis); |
904 |
|
assertTrue(thread.isAlive()); |
905 |
|
} catch (InterruptedException fail) { |
906 |
< |
fail("Unexpected InterruptedException"); |
906 |
> |
threadFail("Unexpected InterruptedException"); |
907 |
|
} |
908 |
|
} |
909 |
|
|
925 |
|
for (Thread thread : threads) |
926 |
|
assertTrue(thread.isAlive()); |
927 |
|
} catch (InterruptedException fail) { |
928 |
< |
fail("Unexpected InterruptedException"); |
928 |
> |
threadFail("Unexpected InterruptedException"); |
929 |
|
} |
930 |
|
} |
931 |
|
|
1328 |
|
public static final String TEST_STRING = "a test string"; |
1329 |
|
|
1330 |
|
public static class StringTask implements Callable<String> { |
1331 |
< |
public String call() { return TEST_STRING; } |
1331 |
> |
final String value; |
1332 |
> |
public StringTask() { this(TEST_STRING); } |
1333 |
> |
public StringTask(String value) { this.value = value; } |
1334 |
> |
public String call() { return value; } |
1335 |
|
} |
1336 |
|
|
1337 |
|
public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) { |
1344 |
|
}}; |
1345 |
|
} |
1346 |
|
|
1347 |
< |
public Runnable awaiter(final CountDownLatch latch) { |
1347 |
> |
public Runnable countDowner(final CountDownLatch latch) { |
1348 |
|
return new CheckedRunnable() { |
1349 |
|
public void realRun() throws InterruptedException { |
1350 |
< |
await(latch); |
1350 |
> |
latch.countDown(); |
1351 |
|
}}; |
1352 |
|
} |
1353 |
|
|
1354 |
+ |
class LatchAwaiter extends CheckedRunnable { |
1355 |
+ |
static final int NEW = 0; |
1356 |
+ |
static final int RUNNING = 1; |
1357 |
+ |
static final int DONE = 2; |
1358 |
+ |
final CountDownLatch latch; |
1359 |
+ |
int state = NEW; |
1360 |
+ |
LatchAwaiter(CountDownLatch latch) { this.latch = latch; } |
1361 |
+ |
public void realRun() throws InterruptedException { |
1362 |
+ |
state = 1; |
1363 |
+ |
await(latch); |
1364 |
+ |
state = 2; |
1365 |
+ |
} |
1366 |
+ |
} |
1367 |
+ |
|
1368 |
+ |
public LatchAwaiter awaiter(CountDownLatch latch) { |
1369 |
+ |
return new LatchAwaiter(latch); |
1370 |
+ |
} |
1371 |
+ |
|
1372 |
|
public void await(CountDownLatch latch) { |
1373 |
|
try { |
1374 |
|
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |