| 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: |
| 288 |
|
static volatile TestCase currentTestCase; |
| 289 |
|
// static volatile int currentRun = 0; |
| 290 |
|
static { |
| 291 |
< |
Runnable checkForWedgedTest = new Runnable() { public void run() { |
| 291 |
> |
Runnable wedgedTestDetector = new Runnable() { public void run() { |
| 292 |
|
// Avoid spurious reports with enormous runsPerTest. |
| 293 |
|
// A single test case run should never take more than 1 second. |
| 294 |
|
// But let's cap it at the high end too ... |
| 295 |
< |
final int timeoutMinutes = |
| 296 |
< |
Math.min(15, Math.max(runsPerTest / 60, 1)); |
| 295 |
> |
final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1) |
| 296 |
> |
* Math.max((int) delayFactor, 1); |
| 297 |
> |
final int timeoutMinutes = Math.min(15, timeoutMinutesMin); |
| 298 |
|
for (TestCase lastTestCase = currentTestCase;;) { |
| 299 |
|
try { MINUTES.sleep(timeoutMinutes); } |
| 300 |
|
catch (InterruptedException unexpected) { break; } |
| 314 |
|
} |
| 315 |
|
lastTestCase = currentTestCase; |
| 316 |
|
}}}; |
| 317 |
< |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
| 317 |
> |
Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector"); |
| 318 |
|
thread.setDaemon(true); |
| 319 |
|
thread.start(); |
| 320 |
|
} |
| 358 |
|
// Never report first run of any test; treat it as a |
| 359 |
|
// warmup run, notably to trigger all needed classloading, |
| 360 |
|
if (i > 0) |
| 361 |
< |
System.out.printf("%n%s: %d%n", toString(), elapsedMillis); |
| 361 |
> |
System.out.printf("%s: %d%n", toString(), elapsedMillis); |
| 362 |
|
} |
| 363 |
|
} |
| 364 |
|
|
| 522 |
|
ExecutorsTest.suite(), |
| 523 |
|
ExecutorCompletionServiceTest.suite(), |
| 524 |
|
FutureTaskTest.suite(), |
| 525 |
+ |
HashtableTest.suite(), |
| 526 |
|
LinkedBlockingDequeTest.suite(), |
| 527 |
|
LinkedBlockingQueueTest.suite(), |
| 528 |
|
LinkedListTest.suite(), |
| 661 |
|
public static long MEDIUM_DELAY_MS; |
| 662 |
|
public static long LONG_DELAY_MS; |
| 663 |
|
|
| 664 |
+ |
/** |
| 665 |
+ |
* A delay significantly longer than LONG_DELAY_MS. |
| 666 |
+ |
* Use this in a thread that is waited for via awaitTermination(Thread). |
| 667 |
+ |
*/ |
| 668 |
+ |
public static long LONGER_DELAY_MS; |
| 669 |
+ |
|
| 670 |
|
private static final long RANDOM_TIMEOUT; |
| 671 |
|
private static final long RANDOM_EXPIRED_TIMEOUT; |
| 672 |
|
private static final TimeUnit RANDOM_TIMEUNIT; |
| 695 |
|
static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; } |
| 696 |
|
|
| 697 |
|
/** |
| 698 |
+ |
* Returns a random boolean; a "coin flip". |
| 699 |
+ |
*/ |
| 700 |
+ |
static boolean randomBoolean() { |
| 701 |
+ |
return ThreadLocalRandom.current().nextBoolean(); |
| 702 |
+ |
} |
| 703 |
+ |
|
| 704 |
+ |
/** |
| 705 |
+ |
* Returns a random element from given choices. |
| 706 |
+ |
*/ |
| 707 |
+ |
<T> T chooseRandomly(T... choices) { |
| 708 |
+ |
return choices[ThreadLocalRandom.current().nextInt(choices.length)]; |
| 709 |
+ |
} |
| 710 |
+ |
|
| 711 |
+ |
/** |
| 712 |
|
* Returns the shortest timed delay. This can be scaled up for |
| 713 |
|
* slow machines using the jsr166.delay.factor system property, |
| 714 |
|
* or via jtreg's -timeoutFactor: flag. |
| 726 |
|
SMALL_DELAY_MS = SHORT_DELAY_MS * 5; |
| 727 |
|
MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10; |
| 728 |
|
LONG_DELAY_MS = SHORT_DELAY_MS * 200; |
| 729 |
+ |
LONGER_DELAY_MS = 2 * LONG_DELAY_MS; |
| 730 |
|
} |
| 731 |
|
|
| 732 |
|
private static final long TIMEOUT_DELAY_MS |
| 765 |
|
*/ |
| 766 |
|
public void threadRecordFailure(Throwable t) { |
| 767 |
|
System.err.println(t); |
| 768 |
< |
dumpTestThreads(); |
| 769 |
< |
threadFailure.compareAndSet(null, t); |
| 768 |
> |
if (threadFailure.compareAndSet(null, t)) |
| 769 |
> |
dumpTestThreads(); |
| 770 |
|
} |
| 771 |
|
|
| 772 |
|
public void setUp() { |
| 1087 |
|
} |
| 1088 |
|
} |
| 1089 |
|
|
| 1090 |
+ |
/** Returns true if thread info might be useful in a thread dump. */ |
| 1091 |
+ |
static boolean threadOfInterest(ThreadInfo info) { |
| 1092 |
+ |
final String name = info.getThreadName(); |
| 1093 |
+ |
String lockName; |
| 1094 |
+ |
if (name == null) |
| 1095 |
+ |
return true; |
| 1096 |
+ |
if (name.equals("Signal Dispatcher") |
| 1097 |
+ |
|| name.equals("WedgedTestDetector")) |
| 1098 |
+ |
return false; |
| 1099 |
+ |
if (name.equals("Reference Handler")) { |
| 1100 |
+ |
// Reference Handler stacktrace changed in JDK-8156500 |
| 1101 |
+ |
StackTraceElement[] stackTrace; String methodName; |
| 1102 |
+ |
if ((stackTrace = info.getStackTrace()) != null |
| 1103 |
+ |
&& stackTrace.length > 0 |
| 1104 |
+ |
&& (methodName = stackTrace[0].getMethodName()) != null |
| 1105 |
+ |
&& methodName.equals("waitForReferencePendingList")) |
| 1106 |
+ |
return false; |
| 1107 |
+ |
// jdk8 Reference Handler stacktrace |
| 1108 |
+ |
if ((lockName = info.getLockName()) != null |
| 1109 |
+ |
&& lockName.startsWith("java.lang.ref")) |
| 1110 |
+ |
return false; |
| 1111 |
+ |
} |
| 1112 |
+ |
if ((name.equals("Finalizer") || name.equals("Common-Cleaner")) |
| 1113 |
+ |
&& (lockName = info.getLockName()) != null |
| 1114 |
+ |
&& lockName.startsWith("java.lang.ref")) |
| 1115 |
+ |
return false; |
| 1116 |
+ |
if (name.startsWith("ForkJoinPool.commonPool-worker") |
| 1117 |
+ |
&& (lockName = info.getLockName()) != null |
| 1118 |
+ |
&& lockName.startsWith("java.util.concurrent.ForkJoinPool")) |
| 1119 |
+ |
return false; |
| 1120 |
+ |
return true; |
| 1121 |
+ |
} |
| 1122 |
+ |
|
| 1123 |
|
/** |
| 1124 |
|
* A debugging tool to print stack traces of most threads, as jstack does. |
| 1125 |
|
* Uninteresting threads are filtered out. |
| 1134 |
|
} |
| 1135 |
|
} |
| 1136 |
|
|
| 1077 |
– |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
| 1137 |
|
System.err.println("------ stacktrace dump start ------"); |
| 1138 |
< |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
| 1139 |
< |
final String name = info.getThreadName(); |
| 1140 |
< |
String lockName; |
| 1082 |
< |
if ("Signal Dispatcher".equals(name)) |
| 1083 |
< |
continue; |
| 1084 |
< |
if ("Reference Handler".equals(name) |
| 1085 |
< |
&& (lockName = info.getLockName()) != null |
| 1086 |
< |
&& lockName.startsWith("java.lang.ref.Reference$Lock")) |
| 1087 |
< |
continue; |
| 1088 |
< |
if ("Finalizer".equals(name) |
| 1089 |
< |
&& (lockName = info.getLockName()) != null |
| 1090 |
< |
&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock")) |
| 1091 |
< |
continue; |
| 1092 |
< |
if ("checkForWedgedTest".equals(name)) |
| 1093 |
< |
continue; |
| 1094 |
< |
System.err.print(info); |
| 1095 |
< |
} |
| 1138 |
> |
for (ThreadInfo info : THREAD_MXBEAN.dumpAllThreads(true, true)) |
| 1139 |
> |
if (threadOfInterest(info)) |
| 1140 |
> |
System.err.print(info); |
| 1141 |
|
System.err.println("------ stacktrace dump end ------"); |
| 1142 |
|
|
| 1143 |
|
if (sm != null) System.setSecurityManager(sm); |
| 1164 |
|
} |
| 1165 |
|
|
| 1166 |
|
/** |
| 1167 |
+ |
* Returns the thread's blocker's class name, if any, else null. |
| 1168 |
+ |
*/ |
| 1169 |
+ |
String blockerClassName(Thread thread) { |
| 1170 |
+ |
ThreadInfo threadInfo; LockInfo lockInfo; |
| 1171 |
+ |
if ((threadInfo = THREAD_MXBEAN.getThreadInfo(thread.getId(), 0)) != null |
| 1172 |
+ |
&& (lockInfo = threadInfo.getLockInfo()) != null) |
| 1173 |
+ |
return lockInfo.getClassName(); |
| 1174 |
+ |
return null; |
| 1175 |
+ |
} |
| 1176 |
+ |
|
| 1177 |
+ |
/** |
| 1178 |
|
* Checks that future.get times out, with the default timeout of |
| 1179 |
|
* {@code timeoutMillis()}. |
| 1180 |
|
*/ |
| 1421 |
|
} |
| 1422 |
|
|
| 1423 |
|
/** |
| 1424 |
+ |
* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to |
| 1425 |
+ |
* be interrupted. Clears the interrupt status before returning. |
| 1426 |
+ |
*/ |
| 1427 |
+ |
void awaitInterrupted() { |
| 1428 |
+ |
for (long startTime = 0L; !Thread.interrupted(); ) { |
| 1429 |
+ |
if (startTime == 0L) |
| 1430 |
+ |
startTime = System.nanoTime(); |
| 1431 |
+ |
else if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
| 1432 |
+ |
fail("timed out waiting for thread interrupt"); |
| 1433 |
+ |
Thread.yield(); |
| 1434 |
+ |
} |
| 1435 |
+ |
} |
| 1436 |
+ |
|
| 1437 |
+ |
/** |
| 1438 |
|
* Returns the number of milliseconds since time given by |
| 1439 |
|
* startNanoTime, which must have been previously returned from a |
| 1440 |
|
* call to {@link System#nanoTime()}. |
| 1443 |
|
return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime); |
| 1444 |
|
} |
| 1445 |
|
|
| 1376 |
– |
// void assertTerminatesPromptly(long timeoutMillis, Runnable r) { |
| 1377 |
– |
// long startTime = System.nanoTime(); |
| 1378 |
– |
// try { |
| 1379 |
– |
// r.run(); |
| 1380 |
– |
// } catch (Throwable fail) { threadUnexpectedException(fail); } |
| 1381 |
– |
// if (millisElapsedSince(startTime) > timeoutMillis/2) |
| 1382 |
– |
// throw new AssertionError("did not return promptly"); |
| 1383 |
– |
// } |
| 1384 |
– |
|
| 1385 |
– |
// void assertTerminatesPromptly(Runnable r) { |
| 1386 |
– |
// assertTerminatesPromptly(LONG_DELAY_MS/2, r); |
| 1387 |
– |
// } |
| 1388 |
– |
|
| 1446 |
|
/** |
| 1447 |
|
* Checks that timed f.get() returns the expected value, and does not |
| 1448 |
|
* wait for the timeout to elapse before returning. |
| 1473 |
|
} |
| 1474 |
|
|
| 1475 |
|
/** |
| 1476 |
+ |
* Returns a new started daemon Thread running the given action, |
| 1477 |
+ |
* wrapped in a CheckedRunnable. |
| 1478 |
+ |
*/ |
| 1479 |
+ |
Thread newStartedThread(Action action) { |
| 1480 |
+ |
return newStartedThread(checkedRunnable(action)); |
| 1481 |
+ |
} |
| 1482 |
+ |
|
| 1483 |
+ |
/** |
| 1484 |
|
* Waits for the specified time (in milliseconds) for the thread |
| 1485 |
|
* to terminate (using {@link Thread#join(long)}), else interrupts |
| 1486 |
|
* the thread (in the hope that it may terminate later) and fails. |
| 1487 |
|
*/ |
| 1488 |
< |
void awaitTermination(Thread t, long timeoutMillis) { |
| 1488 |
> |
void awaitTermination(Thread thread, long timeoutMillis) { |
| 1489 |
|
try { |
| 1490 |
< |
t.join(timeoutMillis); |
| 1490 |
> |
thread.join(timeoutMillis); |
| 1491 |
|
} catch (InterruptedException fail) { |
| 1492 |
|
threadUnexpectedException(fail); |
| 1493 |
< |
} finally { |
| 1494 |
< |
if (t.getState() != Thread.State.TERMINATED) { |
| 1495 |
< |
t.interrupt(); |
| 1496 |
< |
threadFail("timed out waiting for thread to terminate"); |
| 1493 |
> |
} |
| 1494 |
> |
if (thread.getState() != Thread.State.TERMINATED) { |
| 1495 |
> |
String detail = String.format( |
| 1496 |
> |
"timed out waiting for thread to terminate, thread=%s, state=%s" , |
| 1497 |
> |
thread, thread.getState()); |
| 1498 |
> |
try { |
| 1499 |
> |
threadFail(detail); |
| 1500 |
> |
} finally { |
| 1501 |
> |
// Interrupt thread __after__ having reported its stack trace |
| 1502 |
> |
thread.interrupt(); |
| 1503 |
|
} |
| 1504 |
|
} |
| 1505 |
|
} |
| 1527 |
|
} |
| 1528 |
|
} |
| 1529 |
|
|
| 1530 |
+ |
Runnable checkedRunnable(Action action) { |
| 1531 |
+ |
return new CheckedRunnable() { |
| 1532 |
+ |
public void realRun() throws Throwable { |
| 1533 |
+ |
action.run(); |
| 1534 |
+ |
}}; |
| 1535 |
+ |
} |
| 1536 |
+ |
|
| 1537 |
|
public abstract class ThreadShouldThrow extends Thread { |
| 1538 |
|
protected abstract void realRun() throws Throwable; |
| 1539 |
|
|
