1 |
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/* |
2 |
< |
* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
< |
* Expert Group and released to the public domain, as explained at |
2 |
> |
* Written by Doug Lea and Martin Buchholz with assistance from |
3 |
> |
* members of JCP JSR-166 Expert Group and released to the public |
4 |
> |
* domain, as explained at |
5 |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
6 |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
7 |
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* Pat Fisher, Mike Judd. |
8 |
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*/ |
9 |
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|
10 |
+ |
/* |
11 |
+ |
* @test |
12 |
+ |
* @summary JSR-166 tck tests, in a number of variations. |
13 |
+ |
* The first is the conformance testing variant, |
14 |
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* while others also test implementation details. |
15 |
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* @build * |
16 |
+ |
* @modules java.management |
17 |
+ |
* @run junit/othervm/timeout=1000 JSR166TestCase |
18 |
+ |
* @run junit/othervm/timeout=1000 |
19 |
+ |
* --add-opens java.base/java.util.concurrent=ALL-UNNAMED |
20 |
+ |
* --add-opens java.base/java.lang=ALL-UNNAMED |
21 |
+ |
* -Djsr166.testImplementationDetails=true |
22 |
+ |
* JSR166TestCase |
23 |
+ |
* @run junit/othervm/timeout=1000 |
24 |
+ |
* --add-opens java.base/java.util.concurrent=ALL-UNNAMED |
25 |
+ |
* --add-opens java.base/java.lang=ALL-UNNAMED |
26 |
+ |
* -Djsr166.testImplementationDetails=true |
27 |
+ |
* -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 |
28 |
+ |
* JSR166TestCase |
29 |
+ |
* @run junit/othervm/timeout=1000 |
30 |
+ |
* --add-opens java.base/java.util.concurrent=ALL-UNNAMED |
31 |
+ |
* --add-opens java.base/java.lang=ALL-UNNAMED |
32 |
+ |
* -Djsr166.testImplementationDetails=true |
33 |
+ |
* -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 |
34 |
+ |
* -Djava.util.secureRandomSeed=true |
35 |
+ |
* JSR166TestCase |
36 |
+ |
* @run junit/othervm/timeout=1000/policy=tck.policy |
37 |
+ |
* --add-opens java.base/java.util.concurrent=ALL-UNNAMED |
38 |
+ |
* --add-opens java.base/java.lang=ALL-UNNAMED |
39 |
+ |
* -Djsr166.testImplementationDetails=true |
40 |
+ |
* JSR166TestCase |
41 |
+ |
*/ |
42 |
+ |
|
43 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
44 |
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import static java.util.concurrent.TimeUnit.MINUTES; |
45 |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
54 |
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import java.lang.reflect.Constructor; |
55 |
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import java.lang.reflect.Method; |
56 |
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import java.lang.reflect.Modifier; |
23 |
– |
import java.nio.file.Files; |
24 |
– |
import java.nio.file.Paths; |
57 |
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import java.security.CodeSource; |
58 |
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import java.security.Permission; |
59 |
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import java.security.PermissionCollection; |
63 |
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import java.security.SecurityPermission; |
64 |
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import java.util.ArrayList; |
65 |
|
import java.util.Arrays; |
66 |
+ |
import java.util.Collection; |
67 |
+ |
import java.util.Collections; |
68 |
|
import java.util.Date; |
69 |
|
import java.util.Enumeration; |
70 |
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import java.util.Iterator; |
84 |
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import java.util.concurrent.RecursiveTask; |
85 |
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import java.util.concurrent.RejectedExecutionHandler; |
86 |
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import java.util.concurrent.Semaphore; |
87 |
+ |
import java.util.concurrent.SynchronousQueue; |
88 |
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import java.util.concurrent.ThreadFactory; |
89 |
+ |
import java.util.concurrent.ThreadLocalRandom; |
90 |
|
import java.util.concurrent.ThreadPoolExecutor; |
91 |
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import java.util.concurrent.TimeoutException; |
92 |
+ |
import java.util.concurrent.atomic.AtomicBoolean; |
93 |
|
import java.util.concurrent.atomic.AtomicReference; |
57 |
– |
import java.util.regex.Matcher; |
94 |
|
import java.util.regex.Pattern; |
95 |
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|
96 |
|
import junit.framework.AssertionFailedError; |
212 |
|
Integer.getInteger("jsr166.suiteRuns", 1); |
213 |
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|
214 |
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/** |
215 |
< |
* The scaling factor to apply to standard delays used in tests. |
215 |
> |
* Returns the value of the system property, or NaN if not defined. |
216 |
|
*/ |
217 |
< |
private static final int delayFactor = |
218 |
< |
Integer.getInteger("jsr166.delay.factor", 1); |
217 |
> |
private static float systemPropertyValue(String name) { |
218 |
> |
String floatString = System.getProperty(name); |
219 |
> |
if (floatString == null) |
220 |
> |
return Float.NaN; |
221 |
> |
try { |
222 |
> |
return Float.parseFloat(floatString); |
223 |
> |
} catch (NumberFormatException ex) { |
224 |
> |
throw new IllegalArgumentException( |
225 |
> |
String.format("Bad float value in system property %s=%s", |
226 |
> |
name, floatString)); |
227 |
> |
} |
228 |
> |
} |
229 |
> |
|
230 |
> |
/** |
231 |
> |
* The scaling factor to apply to standard delays used in tests. |
232 |
> |
* May be initialized from any of: |
233 |
> |
* - the "jsr166.delay.factor" system property |
234 |
> |
* - the "test.timeout.factor" system property (as used by jtreg) |
235 |
> |
* See: http://openjdk.java.net/jtreg/tag-spec.html |
236 |
> |
* - hard-coded fuzz factor when using a known slowpoke VM |
237 |
> |
*/ |
238 |
> |
private static final float delayFactor = delayFactor(); |
239 |
> |
|
240 |
> |
private static float delayFactor() { |
241 |
> |
float x; |
242 |
> |
if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor"))) |
243 |
> |
return x; |
244 |
> |
if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor"))) |
245 |
> |
return x; |
246 |
> |
String prop = System.getProperty("java.vm.version"); |
247 |
> |
if (prop != null && prop.matches(".*debug.*")) |
248 |
> |
return 4.0f; // How much slower is fastdebug than product?! |
249 |
> |
return 1.0f; |
250 |
> |
} |
251 |
|
|
252 |
|
public JSR166TestCase() { super(); } |
253 |
|
public JSR166TestCase(String name) { super(name); } |
300 |
|
|
301 |
|
// public static String cpuModel() { |
302 |
|
// try { |
303 |
< |
// Matcher matcher = Pattern.compile("model name\\s*: (.*)") |
303 |
> |
// java.util.regex.Matcher matcher |
304 |
> |
// = Pattern.compile("model name\\s*: (.*)") |
305 |
|
// .matcher(new String( |
306 |
< |
// Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8")); |
306 |
> |
// java.nio.file.Files.readAllBytes( |
307 |
> |
// java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8")); |
308 |
|
// matcher.find(); |
309 |
|
// return matcher.group(1); |
310 |
|
// } catch (Exception ex) { return null; } |
471 |
|
AbstractQueuedLongSynchronizerTest.suite(), |
472 |
|
ArrayBlockingQueueTest.suite(), |
473 |
|
ArrayDequeTest.suite(), |
474 |
+ |
ArrayListTest.suite(), |
475 |
|
AtomicBooleanTest.suite(), |
476 |
|
AtomicIntegerArrayTest.suite(), |
477 |
|
AtomicIntegerFieldUpdaterTest.suite(), |
494 |
|
CopyOnWriteArrayListTest.suite(), |
495 |
|
CopyOnWriteArraySetTest.suite(), |
496 |
|
CountDownLatchTest.suite(), |
497 |
+ |
CountedCompleterTest.suite(), |
498 |
|
CyclicBarrierTest.suite(), |
499 |
|
DelayQueueTest.suite(), |
500 |
|
EntryTest.suite(), |
523 |
|
TreeMapTest.suite(), |
524 |
|
TreeSetTest.suite(), |
525 |
|
TreeSubMapTest.suite(), |
526 |
< |
TreeSubSetTest.suite()); |
526 |
> |
TreeSubSetTest.suite(), |
527 |
> |
VectorTest.suite()); |
528 |
|
|
529 |
|
// Java8+ test classes |
530 |
|
if (atLeastJava8()) { |
531 |
|
String[] java8TestClassNames = { |
532 |
+ |
"ArrayDeque8Test", |
533 |
|
"Atomic8Test", |
534 |
|
"CompletableFutureTest", |
535 |
|
"ConcurrentHashMap8Test", |
536 |
< |
"CountedCompleterTest", |
536 |
> |
"CountedCompleter8Test", |
537 |
|
"DoubleAccumulatorTest", |
538 |
|
"DoubleAdderTest", |
539 |
|
"ForkJoinPool8Test", |
540 |
|
"ForkJoinTask8Test", |
541 |
+ |
"LinkedBlockingDeque8Test", |
542 |
+ |
"LinkedBlockingQueue8Test", |
543 |
|
"LongAccumulatorTest", |
544 |
|
"LongAdderTest", |
545 |
|
"SplittableRandomTest", |
546 |
|
"StampedLockTest", |
547 |
|
"SubmissionPublisherTest", |
548 |
|
"ThreadLocalRandom8Test", |
549 |
+ |
"TimeUnit8Test", |
550 |
|
}; |
551 |
|
addNamedTestClasses(suite, java8TestClassNames); |
552 |
|
} |
554 |
|
// Java9+ test classes |
555 |
|
if (atLeastJava9()) { |
556 |
|
String[] java9TestClassNames = { |
557 |
< |
// Currently empty, but expecting varhandle tests |
557 |
> |
"AtomicBoolean9Test", |
558 |
> |
"AtomicInteger9Test", |
559 |
> |
"AtomicIntegerArray9Test", |
560 |
> |
"AtomicLong9Test", |
561 |
> |
"AtomicLongArray9Test", |
562 |
> |
"AtomicReference9Test", |
563 |
> |
"AtomicReferenceArray9Test", |
564 |
> |
"ExecutorCompletionService9Test", |
565 |
> |
"ForkJoinPool9Test", |
566 |
|
}; |
567 |
|
addNamedTestClasses(suite, java9TestClassNames); |
568 |
|
} |
573 |
|
/** Returns list of junit-style test method names in given class. */ |
574 |
|
public static ArrayList<String> testMethodNames(Class<?> testClass) { |
575 |
|
Method[] methods = testClass.getDeclaredMethods(); |
576 |
< |
ArrayList<String> names = new ArrayList<String>(methods.length); |
576 |
> |
ArrayList<String> names = new ArrayList<>(methods.length); |
577 |
|
for (Method method : methods) { |
578 |
|
if (method.getName().startsWith("test") |
579 |
|
&& Modifier.isPublic(method.getModifiers()) |
640 |
|
|
641 |
|
/** |
642 |
|
* Returns the shortest timed delay. This can be scaled up for |
643 |
< |
* slow machines using the jsr166.delay.factor system property. |
643 |
> |
* slow machines using the jsr166.delay.factor system property, |
644 |
> |
* or via jtreg's -timeoutFactor: flag. |
645 |
> |
* http://openjdk.java.net/jtreg/command-help.html |
646 |
|
*/ |
647 |
|
protected long getShortDelay() { |
648 |
< |
return 50 * delayFactor; |
648 |
> |
return (long) (50 * delayFactor); |
649 |
|
} |
650 |
|
|
651 |
|
/** |
658 |
|
LONG_DELAY_MS = SHORT_DELAY_MS * 200; |
659 |
|
} |
660 |
|
|
661 |
+ |
private static final long TIMEOUT_DELAY_MS |
662 |
+ |
= (long) (12.0 * Math.cbrt(delayFactor)); |
663 |
+ |
|
664 |
|
/** |
665 |
< |
* Returns a timeout in milliseconds to be used in tests that |
666 |
< |
* verify that operations block or time out. |
665 |
> |
* Returns a timeout in milliseconds to be used in tests that verify |
666 |
> |
* that operations block or time out. We want this to be longer |
667 |
> |
* than the OS scheduling quantum, but not too long, so don't scale |
668 |
> |
* linearly with delayFactor; we use "crazy" cube root instead. |
669 |
|
*/ |
670 |
< |
long timeoutMillis() { |
671 |
< |
return SHORT_DELAY_MS / 4; |
670 |
> |
static long timeoutMillis() { |
671 |
> |
return TIMEOUT_DELAY_MS; |
672 |
|
} |
673 |
|
|
674 |
|
/** |
684 |
|
* The first exception encountered if any threadAssertXXX method fails. |
685 |
|
*/ |
686 |
|
private final AtomicReference<Throwable> threadFailure |
687 |
< |
= new AtomicReference<Throwable>(null); |
687 |
> |
= new AtomicReference<>(null); |
688 |
|
|
689 |
|
/** |
690 |
|
* Records an exception so that it can be rethrown later in the test |
963 |
|
}}; |
964 |
|
} |
965 |
|
|
966 |
+ |
PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) { |
967 |
+ |
return new PoolCleanerWithReleaser(pool, releaser(flag)); |
968 |
+ |
} |
969 |
+ |
|
970 |
+ |
Runnable releaser(final AtomicBoolean flag) { |
971 |
+ |
return new Runnable() { public void run() { flag.set(true); }}; |
972 |
+ |
} |
973 |
+ |
|
974 |
|
/** |
975 |
|
* Waits out termination of a thread pool or fails doing so. |
976 |
|
*/ |
994 |
|
} |
995 |
|
} |
996 |
|
|
997 |
< |
/** Like Runnable, but with the freedom to throw anything */ |
997 |
> |
/** |
998 |
> |
* Like Runnable, but with the freedom to throw anything. |
999 |
> |
* junit folks had the same idea: |
1000 |
> |
* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html |
1001 |
> |
*/ |
1002 |
|
interface Action { public void run() throws Throwable; } |
1003 |
|
|
1004 |
|
/** |
1029 |
|
* Uninteresting threads are filtered out. |
1030 |
|
*/ |
1031 |
|
static void dumpTestThreads() { |
1032 |
+ |
SecurityManager sm = System.getSecurityManager(); |
1033 |
+ |
if (sm != null) { |
1034 |
+ |
try { |
1035 |
+ |
System.setSecurityManager(null); |
1036 |
+ |
} catch (SecurityException giveUp) { |
1037 |
+ |
return; |
1038 |
+ |
} |
1039 |
+ |
} |
1040 |
+ |
|
1041 |
|
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
1042 |
|
System.err.println("------ stacktrace dump start ------"); |
1043 |
|
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
1044 |
< |
String name = info.getThreadName(); |
1044 |
> |
final String name = info.getThreadName(); |
1045 |
> |
String lockName; |
1046 |
|
if ("Signal Dispatcher".equals(name)) |
1047 |
|
continue; |
1048 |
|
if ("Reference Handler".equals(name) |
1049 |
< |
&& info.getLockName().startsWith("java.lang.ref.Reference$Lock")) |
1049 |
> |
&& (lockName = info.getLockName()) != null |
1050 |
> |
&& lockName.startsWith("java.lang.ref.Reference$Lock")) |
1051 |
|
continue; |
1052 |
|
if ("Finalizer".equals(name) |
1053 |
< |
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
1053 |
> |
&& (lockName = info.getLockName()) != null |
1054 |
> |
&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock")) |
1055 |
|
continue; |
1056 |
|
if ("checkForWedgedTest".equals(name)) |
1057 |
|
continue; |
1058 |
|
System.err.print(info); |
1059 |
|
} |
1060 |
|
System.err.println("------ stacktrace dump end ------"); |
1061 |
+ |
|
1062 |
+ |
if (sm != null) System.setSecurityManager(sm); |
1063 |
+ |
} |
1064 |
+ |
|
1065 |
+ |
/** |
1066 |
+ |
* Checks that thread eventually enters the expected blocked thread state. |
1067 |
+ |
*/ |
1068 |
+ |
void assertThreadBlocks(Thread thread, Thread.State expected) { |
1069 |
+ |
// always sleep at least 1 ms, avoiding transitional states |
1070 |
+ |
// with high probability |
1071 |
+ |
for (long retries = LONG_DELAY_MS; retries-->0; ) { |
1072 |
+ |
try { delay(1); } |
1073 |
+ |
catch (InterruptedException fail) { |
1074 |
+ |
fail("Unexpected InterruptedException"); |
1075 |
+ |
} |
1076 |
+ |
Thread.State s = thread.getState(); |
1077 |
+ |
if (s == expected) |
1078 |
+ |
return; |
1079 |
+ |
else if (s == Thread.State.TERMINATED) |
1080 |
+ |
fail("Unexpected thread termination"); |
1081 |
+ |
} |
1082 |
+ |
fail("timed out waiting for thread to enter thread state " + expected); |
1083 |
|
} |
1084 |
|
|
1085 |
|
/** |
1163 |
|
} |
1164 |
|
|
1165 |
|
/** |
1166 |
+ |
* The maximum number of consecutive spurious wakeups we should |
1167 |
+ |
* tolerate (from APIs like LockSupport.park) before failing a test. |
1168 |
+ |
*/ |
1169 |
+ |
static final int MAX_SPURIOUS_WAKEUPS = 10; |
1170 |
+ |
|
1171 |
+ |
/** |
1172 |
|
* The number of elements to place in collections, arrays, etc. |
1173 |
|
*/ |
1174 |
|
public static final int SIZE = 20; |
1272 |
|
} |
1273 |
|
public void refresh() {} |
1274 |
|
public String toString() { |
1275 |
< |
List<Permission> ps = new ArrayList<Permission>(); |
1275 |
> |
List<Permission> ps = new ArrayList<>(); |
1276 |
|
for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();) |
1277 |
|
ps.add(e.nextElement()); |
1278 |
|
return "AdjustablePolicy with permissions " + ps; |
1302 |
|
* Sleeps until the given time has elapsed. |
1303 |
|
* Throws AssertionFailedError if interrupted. |
1304 |
|
*/ |
1305 |
< |
void sleep(long millis) { |
1305 |
> |
static void sleep(long millis) { |
1306 |
|
try { |
1307 |
|
delay(millis); |
1308 |
|
} catch (InterruptedException fail) { |
1318 |
|
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
1319 |
|
*/ |
1320 |
|
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) { |
1321 |
< |
long startTime = System.nanoTime(); |
1321 |
> |
long startTime = 0L; |
1322 |
|
for (;;) { |
1323 |
|
Thread.State s = thread.getState(); |
1324 |
|
if (s == Thread.State.BLOCKED || |
1327 |
|
return; |
1328 |
|
else if (s == Thread.State.TERMINATED) |
1329 |
|
fail("Unexpected thread termination"); |
1330 |
+ |
else if (startTime == 0L) |
1331 |
+ |
startTime = System.nanoTime(); |
1332 |
|
else if (millisElapsedSince(startTime) > timeoutMillis) { |
1333 |
|
threadAssertTrue(thread.isAlive()); |
1334 |
< |
return; |
1334 |
> |
fail("timed out waiting for thread to enter wait state"); |
1335 |
|
} |
1336 |
|
Thread.yield(); |
1337 |
|
} |
1338 |
|
} |
1339 |
|
|
1340 |
|
/** |
1341 |
< |
* Waits up to LONG_DELAY_MS for the given thread to enter a wait |
1342 |
< |
* state: BLOCKED, WAITING, or TIMED_WAITING. |
1341 |
> |
* Spin-waits up to the specified number of milliseconds for the given |
1342 |
> |
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING, |
1343 |
> |
* and additionally satisfy the given condition. |
1344 |
> |
*/ |
1345 |
> |
void waitForThreadToEnterWaitState( |
1346 |
> |
Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) { |
1347 |
> |
long startTime = 0L; |
1348 |
> |
for (;;) { |
1349 |
> |
Thread.State s = thread.getState(); |
1350 |
> |
if (s == Thread.State.BLOCKED || |
1351 |
> |
s == Thread.State.WAITING || |
1352 |
> |
s == Thread.State.TIMED_WAITING) { |
1353 |
> |
try { |
1354 |
> |
if (waitingForGodot.call()) |
1355 |
> |
return; |
1356 |
> |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
1357 |
> |
} |
1358 |
> |
else if (s == Thread.State.TERMINATED) |
1359 |
> |
fail("Unexpected thread termination"); |
1360 |
> |
else if (startTime == 0L) |
1361 |
> |
startTime = System.nanoTime(); |
1362 |
> |
else if (millisElapsedSince(startTime) > timeoutMillis) { |
1363 |
> |
threadAssertTrue(thread.isAlive()); |
1364 |
> |
fail("timed out waiting for thread to enter wait state"); |
1365 |
> |
} |
1366 |
> |
Thread.yield(); |
1367 |
> |
} |
1368 |
> |
} |
1369 |
> |
|
1370 |
> |
/** |
1371 |
> |
* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to |
1372 |
> |
* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
1373 |
|
*/ |
1374 |
|
void waitForThreadToEnterWaitState(Thread thread) { |
1375 |
|
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS); |
1376 |
|
} |
1377 |
|
|
1378 |
|
/** |
1379 |
+ |
* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to |
1380 |
+ |
* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING, |
1381 |
+ |
* and additionally satisfy the given condition. |
1382 |
+ |
*/ |
1383 |
+ |
void waitForThreadToEnterWaitState( |
1384 |
+ |
Thread thread, Callable<Boolean> waitingForGodot) { |
1385 |
+ |
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot); |
1386 |
+ |
} |
1387 |
+ |
|
1388 |
+ |
/** |
1389 |
|
* Returns the number of milliseconds since time given by |
1390 |
|
* startNanoTime, which must have been previously returned from a |
1391 |
|
* call to {@link System#nanoTime()}. |
1613 |
|
return new LatchAwaiter(latch); |
1614 |
|
} |
1615 |
|
|
1616 |
< |
public void await(CountDownLatch latch) { |
1616 |
> |
public void await(CountDownLatch latch, long timeoutMillis) { |
1617 |
|
try { |
1618 |
< |
if (!latch.await(LONG_DELAY_MS, MILLISECONDS)) |
1618 |
> |
if (!latch.await(timeoutMillis, MILLISECONDS)) |
1619 |
|
fail("timed out waiting for CountDownLatch for " |
1620 |
< |
+ (LONG_DELAY_MS/1000) + " sec"); |
1620 |
> |
+ (timeoutMillis/1000) + " sec"); |
1621 |
|
} catch (Throwable fail) { |
1622 |
|
threadUnexpectedException(fail); |
1623 |
|
} |
1624 |
|
} |
1625 |
|
|
1626 |
+ |
public void await(CountDownLatch latch) { |
1627 |
+ |
await(latch, LONG_DELAY_MS); |
1628 |
+ |
} |
1629 |
+ |
|
1630 |
|
public void await(Semaphore semaphore) { |
1631 |
|
try { |
1632 |
|
if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)) |
1861 |
|
* A CyclicBarrier that uses timed await and fails with |
1862 |
|
* AssertionFailedErrors instead of throwing checked exceptions. |
1863 |
|
*/ |
1864 |
< |
public class CheckedBarrier extends CyclicBarrier { |
1864 |
> |
public static class CheckedBarrier extends CyclicBarrier { |
1865 |
|
public CheckedBarrier(int parties) { super(parties); } |
1866 |
|
|
1867 |
|
public int await() { |
1925 |
|
} |
1926 |
|
} |
1927 |
|
|
1928 |
+ |
void assertImmutable(final Object o) { |
1929 |
+ |
if (o instanceof Collection) { |
1930 |
+ |
assertThrows( |
1931 |
+ |
UnsupportedOperationException.class, |
1932 |
+ |
new Runnable() { public void run() { |
1933 |
+ |
((Collection) o).add(null);}}); |
1934 |
+ |
} |
1935 |
+ |
} |
1936 |
+ |
|
1937 |
|
@SuppressWarnings("unchecked") |
1938 |
|
<T> T serialClone(T o) { |
1939 |
|
try { |
1940 |
|
ObjectInputStream ois = new ObjectInputStream |
1941 |
|
(new ByteArrayInputStream(serialBytes(o))); |
1942 |
|
T clone = (T) ois.readObject(); |
1943 |
+ |
if (o == clone) assertImmutable(o); |
1944 |
|
assertSame(o.getClass(), clone.getClass()); |
1945 |
|
return clone; |
1946 |
|
} catch (Throwable fail) { |
1949 |
|
} |
1950 |
|
} |
1951 |
|
|
1952 |
+ |
/** |
1953 |
+ |
* A version of serialClone that leaves error handling (for |
1954 |
+ |
* e.g. NotSerializableException) up to the caller. |
1955 |
+ |
*/ |
1956 |
+ |
@SuppressWarnings("unchecked") |
1957 |
+ |
<T> T serialClonePossiblyFailing(T o) |
1958 |
+ |
throws ReflectiveOperationException, java.io.IOException { |
1959 |
+ |
ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
1960 |
+ |
ObjectOutputStream oos = new ObjectOutputStream(bos); |
1961 |
+ |
oos.writeObject(o); |
1962 |
+ |
oos.flush(); |
1963 |
+ |
oos.close(); |
1964 |
+ |
ObjectInputStream ois = new ObjectInputStream |
1965 |
+ |
(new ByteArrayInputStream(bos.toByteArray())); |
1966 |
+ |
T clone = (T) ois.readObject(); |
1967 |
+ |
if (o == clone) assertImmutable(o); |
1968 |
+ |
assertSame(o.getClass(), clone.getClass()); |
1969 |
+ |
return clone; |
1970 |
+ |
} |
1971 |
+ |
|
1972 |
+ |
/** |
1973 |
+ |
* If o implements Cloneable and has a public clone method, |
1974 |
+ |
* returns a clone of o, else null. |
1975 |
+ |
*/ |
1976 |
+ |
@SuppressWarnings("unchecked") |
1977 |
+ |
<T> T cloneableClone(T o) { |
1978 |
+ |
if (!(o instanceof Cloneable)) return null; |
1979 |
+ |
final T clone; |
1980 |
+ |
try { |
1981 |
+ |
clone = (T) o.getClass().getMethod("clone").invoke(o); |
1982 |
+ |
} catch (NoSuchMethodException ok) { |
1983 |
+ |
return null; |
1984 |
+ |
} catch (ReflectiveOperationException unexpected) { |
1985 |
+ |
throw new Error(unexpected); |
1986 |
+ |
} |
1987 |
+ |
assertNotSame(o, clone); // not 100% guaranteed by spec |
1988 |
+ |
assertSame(o.getClass(), clone.getClass()); |
1989 |
+ |
return clone; |
1990 |
+ |
} |
1991 |
+ |
|
1992 |
|
public void assertThrows(Class<? extends Throwable> expectedExceptionClass, |
1993 |
|
Runnable... throwingActions) { |
1994 |
|
for (Runnable throwingAction : throwingActions) { |
2017 |
|
} catch (NoSuchElementException success) {} |
2018 |
|
assertFalse(it.hasNext()); |
2019 |
|
} |
2020 |
+ |
|
2021 |
+ |
public <T> Callable<T> callableThrowing(final Exception ex) { |
2022 |
+ |
return new Callable<T>() { public T call() throws Exception { throw ex; }}; |
2023 |
+ |
} |
2024 |
+ |
|
2025 |
+ |
public Runnable runnableThrowing(final RuntimeException ex) { |
2026 |
+ |
return new Runnable() { public void run() { throw ex; }}; |
2027 |
+ |
} |
2028 |
+ |
|
2029 |
+ |
/** A reusable thread pool to be shared by tests. */ |
2030 |
+ |
static final ExecutorService cachedThreadPool = |
2031 |
+ |
new ThreadPoolExecutor(0, Integer.MAX_VALUE, |
2032 |
+ |
1000L, MILLISECONDS, |
2033 |
+ |
new SynchronousQueue<Runnable>()); |
2034 |
+ |
|
2035 |
+ |
static <T> void shuffle(T[] array) { |
2036 |
+ |
Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current()); |
2037 |
+ |
} |
2038 |
|
} |