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; |
188 |
|
return (regex == null) ? null : Pattern.compile(regex); |
189 |
|
} |
190 |
|
|
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 |
+ |
} |
205 |
+ |
lastTestCase = currentTestCase; |
206 |
+ |
}}}; |
207 |
+ |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
208 |
+ |
thread.setDaemon(true); |
209 |
+ |
thread.start(); |
210 |
+ |
} |
211 |
+ |
|
212 |
|
public void runBare() throws Throwable { |
213 |
+ |
currentTestCase = this; |
214 |
|
if (methodFilter == null |
215 |
|
|| methodFilter.matcher(toString()).find()) |
216 |
|
super.runBare(); |
484 |
|
} else { |
485 |
|
return new TestSuite(); |
486 |
|
} |
463 |
– |
|
487 |
|
} |
488 |
|
|
489 |
|
// Delays for timing-dependent tests, in milliseconds. |
541 |
|
* the same test have no effect. |
542 |
|
*/ |
543 |
|
public void threadRecordFailure(Throwable t) { |
544 |
+ |
dumpTestThreads(); |
545 |
|
threadFailure.compareAndSet(null, t); |
546 |
|
} |
547 |
|
|
552 |
|
void tearDownFail(String format, Object... args) { |
553 |
|
String msg = toString() + ": " + String.format(format, args); |
554 |
|
System.err.println(msg); |
555 |
< |
printAllStackTraces(); |
555 |
> |
dumpTestThreads(); |
556 |
|
throw new AssertionFailedError(msg); |
557 |
|
} |
558 |
|
|
621 |
|
fail(reason); |
622 |
|
} catch (AssertionFailedError t) { |
623 |
|
threadRecordFailure(t); |
624 |
< |
fail(reason); |
624 |
> |
throw t; |
625 |
|
} |
626 |
|
} |
627 |
|
|
767 |
|
} |
768 |
|
|
769 |
|
/** |
770 |
+ |
* Allows use of try-with-resources with per-test thread pools. |
771 |
+ |
*/ |
772 |
+ |
static class PoolCloser<T extends ExecutorService> |
773 |
+ |
implements AutoCloseable { |
774 |
+ |
public final T pool; |
775 |
+ |
public PoolCloser(T pool) { this.pool = pool; } |
776 |
+ |
public void close() { joinPool(pool); } |
777 |
+ |
} |
778 |
+ |
|
779 |
+ |
/** |
780 |
|
* Waits out termination of a thread pool or fails doing so. |
781 |
|
*/ |
782 |
< |
void joinPool(ExecutorService pool) { |
782 |
> |
static void joinPool(ExecutorService pool) { |
783 |
|
try { |
784 |
|
pool.shutdown(); |
785 |
|
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
801 |
|
* necessarily individually slow because they must block. |
802 |
|
*/ |
803 |
|
void testInParallel(Action ... actions) { |
804 |
< |
ExecutorService pool = Executors.newCachedThreadPool(); |
805 |
< |
try { |
804 |
> |
try (PoolCloser<ExecutorService> poolCloser |
805 |
> |
= new PoolCloser<>(Executors.newCachedThreadPool())) { |
806 |
> |
ExecutorService pool = poolCloser.pool; |
807 |
|
ArrayList<Future<?>> futures = new ArrayList<>(actions.length); |
808 |
|
for (final Action action : actions) |
809 |
|
futures.add(pool.submit(new CheckedRunnable() { |
816 |
|
} catch (Exception ex) { |
817 |
|
threadUnexpectedException(ex); |
818 |
|
} |
784 |
– |
} finally { |
785 |
– |
joinPool(pool); |
819 |
|
} |
820 |
|
} |
821 |
|
|
822 |
|
/** |
823 |
< |
* A debugging tool to print all stack traces, as jstack does. |
823 |
> |
* A debugging tool to print stack traces of most threads, as jstack does. |
824 |
> |
* Uninteresting threads are filtered out. |
825 |
|
*/ |
826 |
< |
static void printAllStackTraces() { |
827 |
< |
for (ThreadInfo info : |
828 |
< |
ManagementFactory.getThreadMXBean() |
829 |
< |
.dumpAllThreads(true, true)) |
826 |
> |
static void dumpTestThreads() { |
827 |
> |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
828 |
> |
System.err.println("------ stacktrace dump start ------"); |
829 |
> |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
830 |
> |
String name = info.getThreadName(); |
831 |
> |
if ("Signal Dispatcher".equals(name)) |
832 |
> |
continue; |
833 |
> |
if ("Reference Handler".equals(name) |
834 |
> |
&& info.getLockName().startsWith("java.lang.ref.Reference$Lock")) |
835 |
> |
continue; |
836 |
> |
if ("Finalizer".equals(name) |
837 |
> |
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
838 |
> |
continue; |
839 |
> |
if ("checkForWedgedTest".equals(name)) |
840 |
> |
continue; |
841 |
|
System.err.print(info); |
842 |
+ |
} |
843 |
+ |
System.err.println("------ stacktrace dump end ------"); |
844 |
|
} |
845 |
|
|
846 |
|
/** |