49 |
|
import java.io.ObjectInputStream; |
50 |
|
import java.io.ObjectOutputStream; |
51 |
|
import java.lang.management.ManagementFactory; |
52 |
+ |
import java.lang.management.LockInfo; |
53 |
|
import java.lang.management.ThreadInfo; |
54 |
|
import java.lang.management.ThreadMXBean; |
55 |
|
import java.lang.reflect.Constructor; |
244 |
|
} |
245 |
|
} |
246 |
|
|
247 |
+ |
private static final ThreadMXBean THREAD_MXBEAN |
248 |
+ |
= ManagementFactory.getThreadMXBean(); |
249 |
+ |
|
250 |
|
/** |
251 |
|
* The scaling factor to apply to standard delays used in tests. |
252 |
|
* May be initialized from any of: |
704 |
|
/** |
705 |
|
* Returns a random element from given choices. |
706 |
|
*/ |
707 |
+ |
<T> T chooseRandomly(List<T> choices) { |
708 |
+ |
return choices.get(ThreadLocalRandom.current().nextInt(choices.size())); |
709 |
+ |
} |
710 |
+ |
|
711 |
+ |
/** |
712 |
+ |
* Returns a random element from given choices. |
713 |
+ |
*/ |
714 |
|
<T> T chooseRandomly(T... choices) { |
715 |
|
return choices[ThreadLocalRandom.current().nextInt(choices.length)]; |
716 |
|
} |
1141 |
|
} |
1142 |
|
} |
1143 |
|
|
1133 |
– |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
1144 |
|
System.err.println("------ stacktrace dump start ------"); |
1145 |
< |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) |
1145 |
> |
for (ThreadInfo info : THREAD_MXBEAN.dumpAllThreads(true, true)) |
1146 |
|
if (threadOfInterest(info)) |
1147 |
|
System.err.print(info); |
1148 |
|
System.err.println("------ stacktrace dump end ------"); |
1171 |
|
} |
1172 |
|
|
1173 |
|
/** |
1174 |
+ |
* Returns the thread's blocker's class name, if any, else null. |
1175 |
+ |
*/ |
1176 |
+ |
String blockerClassName(Thread thread) { |
1177 |
+ |
ThreadInfo threadInfo; LockInfo lockInfo; |
1178 |
+ |
if ((threadInfo = THREAD_MXBEAN.getThreadInfo(thread.getId(), 0)) != null |
1179 |
+ |
&& (lockInfo = threadInfo.getLockInfo()) != null) |
1180 |
+ |
return lockInfo.getClassName(); |
1181 |
+ |
return null; |
1182 |
+ |
} |
1183 |
+ |
|
1184 |
+ |
/** |
1185 |
|
* Checks that future.get times out, with the default timeout of |
1186 |
|
* {@code timeoutMillis()}. |
1187 |
|
*/ |
1480 |
|
} |
1481 |
|
|
1482 |
|
/** |
1483 |
+ |
* Returns a new started daemon Thread running the given action, |
1484 |
+ |
* wrapped in a CheckedRunnable. |
1485 |
+ |
*/ |
1486 |
+ |
Thread newStartedThread(Action action) { |
1487 |
+ |
return newStartedThread(checkedRunnable(action)); |
1488 |
+ |
} |
1489 |
+ |
|
1490 |
+ |
/** |
1491 |
|
* Waits for the specified time (in milliseconds) for the thread |
1492 |
|
* to terminate (using {@link Thread#join(long)}), else interrupts |
1493 |
|
* the thread (in the hope that it may terminate later) and fails. |
1534 |
|
} |
1535 |
|
} |
1536 |
|
|
1537 |
+ |
Runnable checkedRunnable(Action action) { |
1538 |
+ |
return new CheckedRunnable() { |
1539 |
+ |
public void realRun() throws Throwable { |
1540 |
+ |
action.run(); |
1541 |
+ |
}}; |
1542 |
+ |
} |
1543 |
+ |
|
1544 |
|
public abstract class ThreadShouldThrow extends Thread { |
1545 |
|
protected abstract void realRun() throws Throwable; |
1546 |
|
|
1779 |
|
|
1780 |
|
public int await() { |
1781 |
|
try { |
1782 |
< |
return super.await(2 * LONG_DELAY_MS, MILLISECONDS); |
1782 |
> |
return super.await(LONGER_DELAY_MS, MILLISECONDS); |
1783 |
|
} catch (TimeoutException timedOut) { |
1784 |
|
throw new AssertionError("timed out"); |
1785 |
|
} catch (Exception fail) { |