7 |
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*/ |
8 |
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|
9 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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+ |
import static java.util.concurrent.TimeUnit.MINUTES; |
11 |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
12 |
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|
13 |
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import java.io.ByteArrayInputStream; |
16 |
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import java.io.ObjectOutputStream; |
17 |
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import java.lang.management.ManagementFactory; |
18 |
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import java.lang.management.ThreadInfo; |
19 |
+ |
import java.lang.management.ThreadMXBean; |
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import java.lang.reflect.Constructor; |
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import java.lang.reflect.Method; |
22 |
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import java.lang.reflect.Modifier; |
42 |
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import java.util.concurrent.ExecutionException; |
43 |
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import java.util.concurrent.Executors; |
44 |
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import java.util.concurrent.ExecutorService; |
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+ |
import java.util.concurrent.ForkJoinPool; |
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import java.util.concurrent.Future; |
47 |
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import java.util.concurrent.RecursiveAction; |
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import java.util.concurrent.RecursiveTask; |
188 |
|
return (regex == null) ? null : Pattern.compile(regex); |
189 |
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} |
190 |
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|
191 |
< |
protected void runTest() throws Throwable { |
191 |
> |
static volatile TestCase currentTestCase; |
192 |
> |
static { |
193 |
> |
Runnable checkForWedgedTest = new Runnable() { public void run() { |
194 |
> |
for (TestCase lastTestCase = currentTestCase;;) { |
195 |
> |
try { MINUTES.sleep(10); } |
196 |
> |
catch (InterruptedException unexpected) { break; } |
197 |
> |
if (lastTestCase == currentTestCase) { |
198 |
> |
System.err.println |
199 |
> |
("Looks like we're stuck running test: " |
200 |
> |
+ lastTestCase); |
201 |
> |
dumpTestThreads(); |
202 |
> |
} |
203 |
> |
lastTestCase = currentTestCase; |
204 |
> |
}}}; |
205 |
> |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
206 |
> |
thread.setDaemon(true); |
207 |
> |
thread.start(); |
208 |
> |
} |
209 |
> |
|
210 |
> |
public void runBare() throws Throwable { |
211 |
> |
currentTestCase = this; |
212 |
|
if (methodFilter == null |
213 |
< |
|| methodFilter.matcher(toString()).find()) { |
214 |
< |
for (int i = 0; i < runsPerTest; i++) { |
215 |
< |
if (profileTests) |
216 |
< |
runTestProfiled(); |
217 |
< |
else |
218 |
< |
super.runTest(); |
219 |
< |
} |
213 |
> |
|| methodFilter.matcher(toString()).find()) |
214 |
> |
super.runBare(); |
215 |
> |
} |
216 |
> |
|
217 |
> |
protected void runTest() throws Throwable { |
218 |
> |
for (int i = 0; i < runsPerTest; i++) { |
219 |
> |
if (profileTests) |
220 |
> |
runTestProfiled(); |
221 |
> |
else |
222 |
> |
super.runTest(); |
223 |
|
} |
224 |
|
} |
225 |
|
|
482 |
|
} else { |
483 |
|
return new TestSuite(); |
484 |
|
} |
459 |
– |
|
485 |
|
} |
486 |
|
|
487 |
|
// Delays for timing-dependent tests, in milliseconds. |
539 |
|
* the same test have no effect. |
540 |
|
*/ |
541 |
|
public void threadRecordFailure(Throwable t) { |
542 |
+ |
dumpTestThreads(); |
543 |
|
threadFailure.compareAndSet(null, t); |
544 |
|
} |
545 |
|
|
547 |
|
setDelays(); |
548 |
|
} |
549 |
|
|
550 |
+ |
void tearDownFail(String format, Object... args) { |
551 |
+ |
String msg = toString() + ": " + String.format(format, args); |
552 |
+ |
System.err.println(msg); |
553 |
+ |
dumpTestThreads(); |
554 |
+ |
throw new AssertionFailedError(msg); |
555 |
+ |
} |
556 |
+ |
|
557 |
|
/** |
558 |
|
* Extra checks that get done for all test cases. |
559 |
|
* |
581 |
|
} |
582 |
|
|
583 |
|
if (Thread.interrupted()) |
584 |
< |
throw new AssertionFailedError("interrupt status set in main thread"); |
584 |
> |
tearDownFail("interrupt status set in main thread"); |
585 |
|
|
586 |
|
checkForkJoinPoolThreadLeaks(); |
587 |
|
} |
590 |
|
* Finds missing try { ... } finally { joinPool(e); } |
591 |
|
*/ |
592 |
|
void checkForkJoinPoolThreadLeaks() throws InterruptedException { |
593 |
< |
Thread[] survivors = new Thread[5]; |
593 |
> |
Thread[] survivors = new Thread[7]; |
594 |
|
int count = Thread.enumerate(survivors); |
595 |
|
for (int i = 0; i < count; i++) { |
596 |
|
Thread thread = survivors[i]; |
598 |
|
if (name.startsWith("ForkJoinPool-")) { |
599 |
|
// give thread some time to terminate |
600 |
|
thread.join(LONG_DELAY_MS); |
601 |
< |
if (!thread.isAlive()) continue; |
602 |
< |
throw new AssertionFailedError |
603 |
< |
(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n", |
571 |
< |
toString(), name)); |
601 |
> |
if (thread.isAlive()) |
602 |
> |
tearDownFail("Found leaked ForkJoinPool thread thread=%s", |
603 |
> |
thread); |
604 |
|
} |
605 |
|
} |
606 |
+ |
|
607 |
+ |
if (!ForkJoinPool.commonPool() |
608 |
+ |
.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS)) |
609 |
+ |
tearDownFail("ForkJoin common pool thread stuck"); |
610 |
|
} |
611 |
|
|
612 |
|
/** |
619 |
|
fail(reason); |
620 |
|
} catch (AssertionFailedError t) { |
621 |
|
threadRecordFailure(t); |
622 |
< |
fail(reason); |
622 |
> |
throw t; |
623 |
|
} |
624 |
|
} |
625 |
|
|
765 |
|
} |
766 |
|
|
767 |
|
/** |
768 |
+ |
* Allows use of try-with-resources with per-test thread pools. |
769 |
+ |
*/ |
770 |
+ |
static class PoolCloser<T extends ExecutorService> |
771 |
+ |
implements AutoCloseable { |
772 |
+ |
public final T pool; |
773 |
+ |
public PoolCloser(T pool) { this.pool = pool; } |
774 |
+ |
public void close() { joinPool(pool); } |
775 |
+ |
} |
776 |
+ |
|
777 |
+ |
/** |
778 |
|
* Waits out termination of a thread pool or fails doing so. |
779 |
|
*/ |
780 |
< |
void joinPool(ExecutorService pool) { |
780 |
> |
static void joinPool(ExecutorService pool) { |
781 |
|
try { |
782 |
|
pool.shutdown(); |
783 |
|
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
799 |
|
* necessarily individually slow because they must block. |
800 |
|
*/ |
801 |
|
void testInParallel(Action ... actions) { |
802 |
< |
ExecutorService pool = Executors.newCachedThreadPool(); |
803 |
< |
try { |
802 |
> |
try (PoolCloser<ExecutorService> poolCloser |
803 |
> |
= new PoolCloser<>(Executors.newCachedThreadPool())) { |
804 |
> |
ExecutorService pool = poolCloser.pool; |
805 |
|
ArrayList<Future<?>> futures = new ArrayList<>(actions.length); |
806 |
|
for (final Action action : actions) |
807 |
|
futures.add(pool.submit(new CheckedRunnable() { |
814 |
|
} catch (Exception ex) { |
815 |
|
threadUnexpectedException(ex); |
816 |
|
} |
770 |
– |
} finally { |
771 |
– |
joinPool(pool); |
817 |
|
} |
818 |
|
} |
819 |
|
|
820 |
|
/** |
821 |
< |
* A debugging tool to print all stack traces, as jstack does. |
821 |
> |
* A debugging tool to print stack traces of most threads, as jstack does. |
822 |
> |
* Uninteresting threads are filtered out. |
823 |
|
*/ |
824 |
< |
static void printAllStackTraces() { |
825 |
< |
for (ThreadInfo info : |
826 |
< |
ManagementFactory.getThreadMXBean() |
827 |
< |
.dumpAllThreads(true, true)) |
824 |
> |
static void dumpTestThreads() { |
825 |
> |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
826 |
> |
System.err.println("------ stacktrace dump start ------"); |
827 |
> |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
828 |
> |
String name = info.getThreadName(); |
829 |
> |
if ("Signal Dispatcher".equals(name)) |
830 |
> |
continue; |
831 |
> |
if ("Reference Handler".equals(name) |
832 |
> |
&& info.getLockName().startsWith("java.lang.ref.Reference$Lock")) |
833 |
> |
continue; |
834 |
> |
if ("Finalizer".equals(name) |
835 |
> |
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
836 |
> |
continue; |
837 |
> |
if ("checkForWedgedTest".equals(name)) |
838 |
> |
continue; |
839 |
|
System.err.print(info); |
840 |
+ |
} |
841 |
+ |
System.err.println("------ stacktrace dump end ------"); |
842 |
|
} |
843 |
|
|
844 |
|
/** |
1299 |
|
}}; |
1300 |
|
} |
1301 |
|
|
1302 |
+ |
public Runnable countDowner(final CountDownLatch latch) { |
1303 |
+ |
return new CheckedRunnable() { |
1304 |
+ |
public void realRun() throws InterruptedException { |
1305 |
+ |
latch.countDown(); |
1306 |
+ |
}}; |
1307 |
+ |
} |
1308 |
+ |
|
1309 |
|
public Runnable awaiter(final CountDownLatch latch) { |
1310 |
|
return new CheckedRunnable() { |
1311 |
|
public void realRun() throws InterruptedException { |