11 |
|
import static java.util.concurrent.TimeUnit.SECONDS; |
12 |
|
|
13 |
|
import java.util.ArrayList; |
14 |
+ |
import java.util.Collection; |
15 |
+ |
import java.util.Collections; |
16 |
|
import java.util.List; |
17 |
|
import java.util.concurrent.ArrayBlockingQueue; |
18 |
|
import java.util.concurrent.BlockingQueue; |
28 |
|
import java.util.concurrent.RejectedExecutionHandler; |
29 |
|
import java.util.concurrent.SynchronousQueue; |
30 |
|
import java.util.concurrent.ThreadFactory; |
31 |
+ |
import java.util.concurrent.ThreadLocalRandom; |
32 |
|
import java.util.concurrent.ThreadPoolExecutor; |
33 |
+ |
import java.util.concurrent.ThreadPoolExecutor.AbortPolicy; |
34 |
+ |
import java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy; |
35 |
+ |
import java.util.concurrent.ThreadPoolExecutor.DiscardPolicy; |
36 |
+ |
import java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy; |
37 |
|
import java.util.concurrent.atomic.AtomicInteger; |
38 |
+ |
import java.util.concurrent.atomic.AtomicReference; |
39 |
|
|
40 |
|
import junit.framework.Test; |
41 |
|
import junit.framework.TestSuite; |
290 |
|
LONG_DELAY_MS, MILLISECONDS, |
291 |
|
new ArrayBlockingQueue<Runnable>(10)); |
292 |
|
try (PoolCleaner cleaner = cleaner(p)) { |
293 |
< |
assertTrue(p.getRejectedExecutionHandler() |
286 |
< |
instanceof ThreadPoolExecutor.AbortPolicy); |
293 |
> |
assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy); |
294 |
|
} |
295 |
|
} |
296 |
|
|
477 |
|
assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
478 |
|
assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
479 |
|
assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
480 |
< |
assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
481 |
< |
assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
480 |
> |
assertFalse(p.awaitTermination(randomExpiredTimeout(), |
481 |
> |
randomTimeUnit())); |
482 |
|
long timeoutNanos = 999999L; |
483 |
|
long startTime = System.nanoTime(); |
484 |
|
assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
1059 |
|
p.submit(task).get(); |
1060 |
|
}}); |
1061 |
|
|
1062 |
< |
await(threadStarted); |
1062 |
> |
await(threadStarted); // ensure quiescence |
1063 |
|
t.interrupt(); |
1064 |
|
awaitTermination(t); |
1065 |
|
} |
1066 |
|
} |
1067 |
|
|
1068 |
|
/** |
1069 |
< |
* execute throws RejectedExecutionException if saturated. |
1069 |
> |
* Submitted tasks are rejected when saturated or shutdown |
1070 |
|
*/ |
1071 |
< |
public void testSaturatedExecute() { |
1071 |
> |
public void testSubmittedTasksRejectedWhenSaturatedOrShutdown() throws InterruptedException { |
1072 |
> |
final ThreadPoolExecutor p = new ThreadPoolExecutor( |
1073 |
> |
1, 1, 1, SECONDS, new ArrayBlockingQueue<Runnable>(1)); |
1074 |
> |
final int saturatedSize = saturatedSize(p); |
1075 |
> |
final ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
1076 |
> |
final CountDownLatch threadsStarted = new CountDownLatch(p.getMaximumPoolSize()); |
1077 |
|
final CountDownLatch done = new CountDownLatch(1); |
1078 |
< |
final ThreadPoolExecutor p = |
1079 |
< |
new ThreadPoolExecutor(1, 1, |
1080 |
< |
LONG_DELAY_MS, MILLISECONDS, |
1069 |
< |
new ArrayBlockingQueue<Runnable>(1)); |
1070 |
< |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1071 |
< |
Runnable task = new CheckedRunnable() { |
1072 |
< |
public void realRun() throws InterruptedException { |
1073 |
< |
await(done); |
1074 |
< |
}}; |
1075 |
< |
for (int i = 0; i < 2; ++i) |
1076 |
< |
p.execute(task); |
1077 |
< |
for (int i = 0; i < 2; ++i) { |
1078 |
> |
final Runnable r = () -> { |
1079 |
> |
threadsStarted.countDown(); |
1080 |
> |
for (;;) { |
1081 |
|
try { |
1082 |
< |
p.execute(task); |
1083 |
< |
shouldThrow(); |
1084 |
< |
} catch (RejectedExecutionException success) {} |
1085 |
< |
assertTrue(p.getTaskCount() <= 2); |
1086 |
< |
} |
1087 |
< |
} |
1088 |
< |
} |
1086 |
< |
|
1087 |
< |
/** |
1088 |
< |
* submit(runnable) throws RejectedExecutionException if saturated. |
1089 |
< |
*/ |
1090 |
< |
public void testSaturatedSubmitRunnable() { |
1091 |
< |
final CountDownLatch done = new CountDownLatch(1); |
1092 |
< |
final ThreadPoolExecutor p = |
1093 |
< |
new ThreadPoolExecutor(1, 1, |
1094 |
< |
LONG_DELAY_MS, MILLISECONDS, |
1095 |
< |
new ArrayBlockingQueue<Runnable>(1)); |
1096 |
< |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1097 |
< |
Runnable task = new CheckedRunnable() { |
1098 |
< |
public void realRun() throws InterruptedException { |
1099 |
< |
await(done); |
1100 |
< |
}}; |
1101 |
< |
for (int i = 0; i < 2; ++i) |
1102 |
< |
p.submit(task); |
1103 |
< |
for (int i = 0; i < 2; ++i) { |
1082 |
> |
done.await(); |
1083 |
> |
return; |
1084 |
> |
} catch (InterruptedException shutdownNowDeliberatelyIgnored) {} |
1085 |
> |
}}; |
1086 |
> |
final Callable<Boolean> c = () -> { |
1087 |
> |
threadsStarted.countDown(); |
1088 |
> |
for (;;) { |
1089 |
|
try { |
1090 |
< |
p.execute(task); |
1091 |
< |
shouldThrow(); |
1092 |
< |
} catch (RejectedExecutionException success) {} |
1093 |
< |
assertTrue(p.getTaskCount() <= 2); |
1094 |
< |
} |
1110 |
< |
} |
1111 |
< |
} |
1090 |
> |
done.await(); |
1091 |
> |
return Boolean.TRUE; |
1092 |
> |
} catch (InterruptedException shutdownNowDeliberatelyIgnored) {} |
1093 |
> |
}}; |
1094 |
> |
final boolean shutdownNow = rnd.nextBoolean(); |
1095 |
|
|
1113 |
– |
/** |
1114 |
– |
* submit(callable) throws RejectedExecutionException if saturated. |
1115 |
– |
*/ |
1116 |
– |
public void testSaturatedSubmitCallable() { |
1117 |
– |
final CountDownLatch done = new CountDownLatch(1); |
1118 |
– |
final ThreadPoolExecutor p = |
1119 |
– |
new ThreadPoolExecutor(1, 1, |
1120 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1121 |
– |
new ArrayBlockingQueue<Runnable>(1)); |
1096 |
|
try (PoolCleaner cleaner = cleaner(p, done)) { |
1097 |
< |
Runnable task = new CheckedRunnable() { |
1098 |
< |
public void realRun() throws InterruptedException { |
1099 |
< |
await(done); |
1100 |
< |
}}; |
1101 |
< |
for (int i = 0; i < 2; ++i) |
1102 |
< |
p.execute(task); |
1103 |
< |
for (int i = 0; i < 2; ++i) { |
1104 |
< |
try { |
1131 |
< |
p.execute(task); |
1132 |
< |
shouldThrow(); |
1133 |
< |
} catch (RejectedExecutionException success) {} |
1134 |
< |
assertTrue(p.getTaskCount() <= 2); |
1097 |
> |
// saturate |
1098 |
> |
for (int i = saturatedSize; i--> 0; ) { |
1099 |
> |
switch (rnd.nextInt(4)) { |
1100 |
> |
case 0: p.execute(r); break; |
1101 |
> |
case 1: assertFalse(p.submit(r).isDone()); break; |
1102 |
> |
case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break; |
1103 |
> |
case 3: assertFalse(p.submit(c).isDone()); break; |
1104 |
> |
} |
1105 |
|
} |
1136 |
– |
} |
1137 |
– |
} |
1106 |
|
|
1107 |
< |
/** |
1108 |
< |
* executor using CallerRunsPolicy runs task if saturated. |
1141 |
< |
*/ |
1142 |
< |
public void testSaturatedExecute2() { |
1143 |
< |
final ThreadPoolExecutor p = |
1144 |
< |
new ThreadPoolExecutor(1, 1, |
1145 |
< |
LONG_DELAY_MS, |
1146 |
< |
MILLISECONDS, |
1147 |
< |
new ArrayBlockingQueue<Runnable>(1), |
1148 |
< |
new ThreadPoolExecutor.CallerRunsPolicy()); |
1149 |
< |
try (PoolCleaner cleaner = cleaner(p)) { |
1150 |
< |
final CountDownLatch done = new CountDownLatch(1); |
1151 |
< |
Runnable blocker = new CheckedRunnable() { |
1152 |
< |
public void realRun() throws InterruptedException { |
1153 |
< |
await(done); |
1154 |
< |
}}; |
1155 |
< |
p.execute(blocker); |
1156 |
< |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1157 |
< |
for (int i = 0; i < tasks.length; i++) |
1158 |
< |
tasks[i] = new TrackedNoOpRunnable(); |
1159 |
< |
for (int i = 0; i < tasks.length; i++) |
1160 |
< |
p.execute(tasks[i]); |
1161 |
< |
for (int i = 1; i < tasks.length; i++) |
1162 |
< |
assertTrue(tasks[i].done); |
1163 |
< |
assertFalse(tasks[0].done); // waiting in queue |
1164 |
< |
done.countDown(); |
1165 |
< |
} |
1166 |
< |
} |
1107 |
> |
await(threadsStarted); |
1108 |
> |
assertTaskSubmissionsAreRejected(p); |
1109 |
|
|
1110 |
< |
/** |
1111 |
< |
* executor using DiscardPolicy drops task if saturated. |
1112 |
< |
*/ |
1113 |
< |
public void testSaturatedExecute3() { |
1114 |
< |
final CountDownLatch done = new CountDownLatch(1); |
1115 |
< |
final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1116 |
< |
for (int i = 0; i < tasks.length; ++i) |
1175 |
< |
tasks[i] = new TrackedNoOpRunnable(); |
1176 |
< |
final ThreadPoolExecutor p = |
1177 |
< |
new ThreadPoolExecutor(1, 1, |
1178 |
< |
LONG_DELAY_MS, MILLISECONDS, |
1179 |
< |
new ArrayBlockingQueue<Runnable>(1), |
1180 |
< |
new ThreadPoolExecutor.DiscardPolicy()); |
1181 |
< |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1182 |
< |
p.execute(awaiter(done)); |
1110 |
> |
if (shutdownNow) |
1111 |
> |
p.shutdownNow(); |
1112 |
> |
else |
1113 |
> |
p.shutdown(); |
1114 |
> |
// Pool is shutdown, but not yet terminated |
1115 |
> |
assertTaskSubmissionsAreRejected(p); |
1116 |
> |
assertFalse(p.isTerminated()); |
1117 |
|
|
1118 |
< |
for (TrackedNoOpRunnable task : tasks) |
1119 |
< |
p.execute(task); |
1120 |
< |
for (int i = 1; i < tasks.length; i++) |
1121 |
< |
assertFalse(tasks[i].done); |
1122 |
< |
} |
1123 |
< |
for (int i = 1; i < tasks.length; i++) |
1124 |
< |
assertFalse(tasks[i].done); |
1125 |
< |
assertTrue(tasks[0].done); // was waiting in queue |
1118 |
> |
done.countDown(); // release blocking tasks |
1119 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
1120 |
> |
|
1121 |
> |
assertTaskSubmissionsAreRejected(p); |
1122 |
> |
} |
1123 |
> |
assertEquals(saturatedSize(p) |
1124 |
> |
- (shutdownNow ? p.getQueue().remainingCapacity() : 0), |
1125 |
> |
p.getCompletedTaskCount()); |
1126 |
|
} |
1127 |
|
|
1128 |
|
/** |
1129 |
|
* executor using DiscardOldestPolicy drops oldest task if saturated. |
1130 |
|
*/ |
1131 |
< |
public void testSaturatedExecute4() { |
1131 |
> |
public void testSaturatedExecute_DiscardOldestPolicy() { |
1132 |
|
final CountDownLatch done = new CountDownLatch(1); |
1133 |
|
LatchAwaiter r1 = awaiter(done); |
1134 |
|
LatchAwaiter r2 = awaiter(done); |
1137 |
|
new ThreadPoolExecutor(1, 1, |
1138 |
|
LONG_DELAY_MS, MILLISECONDS, |
1139 |
|
new ArrayBlockingQueue<Runnable>(1), |
1140 |
< |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1140 |
> |
new DiscardOldestPolicy()); |
1141 |
|
try (PoolCleaner cleaner = cleaner(p, done)) { |
1142 |
|
assertEquals(LatchAwaiter.NEW, r1.state); |
1143 |
|
assertEquals(LatchAwaiter.NEW, r2.state); |
1155 |
|
} |
1156 |
|
|
1157 |
|
/** |
1224 |
– |
* execute throws RejectedExecutionException if shutdown |
1225 |
– |
*/ |
1226 |
– |
public void testRejectedExecutionExceptionOnShutdown() { |
1227 |
– |
final ThreadPoolExecutor p = |
1228 |
– |
new ThreadPoolExecutor(1, 1, |
1229 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1230 |
– |
new ArrayBlockingQueue<Runnable>(1)); |
1231 |
– |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1232 |
– |
try (PoolCleaner cleaner = cleaner(p)) { |
1233 |
– |
try { |
1234 |
– |
p.execute(new NoOpRunnable()); |
1235 |
– |
shouldThrow(); |
1236 |
– |
} catch (RejectedExecutionException success) {} |
1237 |
– |
} |
1238 |
– |
} |
1239 |
– |
|
1240 |
– |
/** |
1241 |
– |
* execute using CallerRunsPolicy drops task on shutdown |
1242 |
– |
*/ |
1243 |
– |
public void testCallerRunsOnShutdown() { |
1244 |
– |
RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
1245 |
– |
final ThreadPoolExecutor p = |
1246 |
– |
new ThreadPoolExecutor(1, 1, |
1247 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1248 |
– |
new ArrayBlockingQueue<Runnable>(1), h); |
1249 |
– |
|
1250 |
– |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1251 |
– |
try (PoolCleaner cleaner = cleaner(p)) { |
1252 |
– |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1253 |
– |
p.execute(r); |
1254 |
– |
assertFalse(r.done); |
1255 |
– |
} |
1256 |
– |
} |
1257 |
– |
|
1258 |
– |
/** |
1259 |
– |
* execute using DiscardPolicy drops task on shutdown |
1260 |
– |
*/ |
1261 |
– |
public void testDiscardOnShutdown() { |
1262 |
– |
final ThreadPoolExecutor p = |
1263 |
– |
new ThreadPoolExecutor(1, 1, |
1264 |
– |
LONG_DELAY_MS, MILLISECONDS, |
1265 |
– |
new ArrayBlockingQueue<Runnable>(1), |
1266 |
– |
new ThreadPoolExecutor.DiscardPolicy()); |
1267 |
– |
|
1268 |
– |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1269 |
– |
try (PoolCleaner cleaner = cleaner(p)) { |
1270 |
– |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1271 |
– |
p.execute(r); |
1272 |
– |
assertFalse(r.done); |
1273 |
– |
} |
1274 |
– |
} |
1275 |
– |
|
1276 |
– |
/** |
1158 |
|
* execute using DiscardOldestPolicy drops task on shutdown |
1159 |
|
*/ |
1160 |
|
public void testDiscardOldestOnShutdown() { |
1162 |
|
new ThreadPoolExecutor(1, 1, |
1163 |
|
LONG_DELAY_MS, MILLISECONDS, |
1164 |
|
new ArrayBlockingQueue<Runnable>(1), |
1165 |
< |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1165 |
> |
new DiscardOldestPolicy()); |
1166 |
|
|
1167 |
|
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1168 |
|
try (PoolCleaner cleaner = cleaner(p)) { |
1173 |
|
} |
1174 |
|
|
1175 |
|
/** |
1176 |
< |
* execute(null) throws NPE |
1176 |
> |
* Submitting null tasks throws NullPointerException |
1177 |
|
*/ |
1178 |
< |
public void testExecuteNull() { |
1178 |
> |
public void testNullTaskSubmission() { |
1179 |
|
final ThreadPoolExecutor p = |
1180 |
|
new ThreadPoolExecutor(1, 2, |
1181 |
|
1L, SECONDS, |
1182 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1183 |
|
try (PoolCleaner cleaner = cleaner(p)) { |
1184 |
< |
try { |
1304 |
< |
p.execute(null); |
1305 |
< |
shouldThrow(); |
1306 |
< |
} catch (NullPointerException success) {} |
1184 |
> |
assertNullTaskSubmissionThrowsNullPointerException(p); |
1185 |
|
} |
1186 |
|
} |
1187 |
|
|
1373 |
|
} |
1374 |
|
|
1375 |
|
/** |
1376 |
< |
* invokeAny(empty collection) throws IAE |
1376 |
> |
* invokeAny(empty collection) throws IllegalArgumentException |
1377 |
|
*/ |
1378 |
|
public void testInvokeAny2() throws Exception { |
1379 |
|
final ExecutorService e = |
1463 |
|
} |
1464 |
|
|
1465 |
|
/** |
1466 |
< |
* invokeAll(empty collection) returns empty collection |
1466 |
> |
* invokeAll(empty collection) returns empty list |
1467 |
|
*/ |
1468 |
|
public void testInvokeAll2() throws InterruptedException { |
1469 |
|
final ExecutorService e = |
1470 |
|
new ThreadPoolExecutor(2, 2, |
1471 |
|
LONG_DELAY_MS, MILLISECONDS, |
1472 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1473 |
+ |
final Collection<Callable<String>> emptyCollection |
1474 |
+ |
= Collections.emptyList(); |
1475 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1476 |
< |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
1476 |
> |
List<Future<String>> r = e.invokeAll(emptyCollection); |
1477 |
|
assertTrue(r.isEmpty()); |
1478 |
|
} |
1479 |
|
} |
1548 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1549 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1550 |
|
try { |
1551 |
< |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1551 |
> |
e.invokeAny(null, randomTimeout(), randomTimeUnit()); |
1552 |
|
shouldThrow(); |
1553 |
|
} catch (NullPointerException success) {} |
1554 |
|
} |
1566 |
|
List<Callable<String>> l = new ArrayList<>(); |
1567 |
|
l.add(new StringTask()); |
1568 |
|
try { |
1569 |
< |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1569 |
> |
e.invokeAny(l, randomTimeout(), null); |
1570 |
|
shouldThrow(); |
1571 |
|
} catch (NullPointerException success) {} |
1572 |
|
} |
1573 |
|
} |
1574 |
|
|
1575 |
|
/** |
1576 |
< |
* timed invokeAny(empty collection) throws IAE |
1576 |
> |
* timed invokeAny(empty collection) throws IllegalArgumentException |
1577 |
|
*/ |
1578 |
|
public void testTimedInvokeAny2() throws Exception { |
1579 |
|
final ExecutorService e = |
1583 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1584 |
|
try { |
1585 |
|
e.invokeAny(new ArrayList<Callable<String>>(), |
1586 |
< |
MEDIUM_DELAY_MS, MILLISECONDS); |
1586 |
> |
randomTimeout(), randomTimeUnit()); |
1587 |
|
shouldThrow(); |
1588 |
|
} catch (IllegalArgumentException success) {} |
1589 |
|
} |
1590 |
|
} |
1591 |
|
|
1592 |
|
/** |
1593 |
< |
* timed invokeAny(c) throws NPE if c has null elements |
1593 |
> |
* timed invokeAny(c) throws NullPointerException if c has null elements |
1594 |
|
*/ |
1595 |
|
public void testTimedInvokeAny3() throws Exception { |
1596 |
|
final CountDownLatch latch = new CountDownLatch(1); |
1603 |
|
l.add(latchAwaitingStringTask(latch)); |
1604 |
|
l.add(null); |
1605 |
|
try { |
1606 |
< |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1606 |
> |
e.invokeAny(l, randomTimeout(), randomTimeUnit()); |
1607 |
|
shouldThrow(); |
1608 |
|
} catch (NullPointerException success) {} |
1609 |
|
latch.countDown(); |
1661 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1662 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1663 |
|
try { |
1664 |
< |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1664 |
> |
e.invokeAll(null, randomTimeout(), randomTimeUnit()); |
1665 |
|
shouldThrow(); |
1666 |
|
} catch (NullPointerException success) {} |
1667 |
|
} |
1679 |
|
List<Callable<String>> l = new ArrayList<>(); |
1680 |
|
l.add(new StringTask()); |
1681 |
|
try { |
1682 |
< |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1682 |
> |
e.invokeAll(l, randomTimeout(), null); |
1683 |
|
shouldThrow(); |
1684 |
|
} catch (NullPointerException success) {} |
1685 |
|
} |
1686 |
|
} |
1687 |
|
|
1688 |
|
/** |
1689 |
< |
* timed invokeAll(empty collection) returns empty collection |
1689 |
> |
* timed invokeAll(empty collection) returns empty list |
1690 |
|
*/ |
1691 |
|
public void testTimedInvokeAll2() throws InterruptedException { |
1692 |
|
final ExecutorService e = |
1693 |
|
new ThreadPoolExecutor(2, 2, |
1694 |
|
LONG_DELAY_MS, MILLISECONDS, |
1695 |
|
new ArrayBlockingQueue<Runnable>(10)); |
1696 |
+ |
final Collection<Callable<String>> emptyCollection |
1697 |
+ |
= Collections.emptyList(); |
1698 |
|
try (PoolCleaner cleaner = cleaner(e)) { |
1699 |
< |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), |
1700 |
< |
MEDIUM_DELAY_MS, MILLISECONDS); |
1699 |
> |
List<Future<String>> r = |
1700 |
> |
e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit()); |
1701 |
|
assertTrue(r.isEmpty()); |
1702 |
|
} |
1703 |
|
} |
1715 |
|
l.add(new StringTask()); |
1716 |
|
l.add(null); |
1717 |
|
try { |
1718 |
< |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1718 |
> |
e.invokeAll(l, randomTimeout(), randomTimeUnit()); |
1719 |
|
shouldThrow(); |
1720 |
|
} catch (NullPointerException success) {} |
1721 |
|
} |
1957 |
|
} |
1958 |
|
} |
1959 |
|
|
1960 |
+ |
/** Directly test simple ThreadPoolExecutor RejectedExecutionHandlers. */ |
1961 |
+ |
public void testStandardRejectedExecutionHandlers() { |
1962 |
+ |
final ThreadPoolExecutor p = |
1963 |
+ |
new ThreadPoolExecutor(1, 1, 1, SECONDS, |
1964 |
+ |
new ArrayBlockingQueue<Runnable>(1)); |
1965 |
+ |
final AtomicReference<Thread> thread = new AtomicReference<>(); |
1966 |
+ |
final Runnable r = new Runnable() { public void run() { |
1967 |
+ |
thread.set(Thread.currentThread()); }}; |
1968 |
+ |
|
1969 |
+ |
try { |
1970 |
+ |
new AbortPolicy().rejectedExecution(r, p); |
1971 |
+ |
shouldThrow(); |
1972 |
+ |
} catch (RejectedExecutionException success) {} |
1973 |
+ |
assertNull(thread.get()); |
1974 |
+ |
|
1975 |
+ |
new DiscardPolicy().rejectedExecution(r, p); |
1976 |
+ |
assertNull(thread.get()); |
1977 |
+ |
|
1978 |
+ |
new CallerRunsPolicy().rejectedExecution(r, p); |
1979 |
+ |
assertSame(Thread.currentThread(), thread.get()); |
1980 |
+ |
|
1981 |
+ |
// check that pool was not perturbed by handlers |
1982 |
+ |
assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy); |
1983 |
+ |
assertEquals(0, p.getTaskCount()); |
1984 |
+ |
assertTrue(p.getQueue().isEmpty()); |
1985 |
+ |
} |
1986 |
+ |
|
1987 |
+ |
public void testThreadFactoryReturnsTerminatedThread_shouldThrow() { |
1988 |
+ |
if (!testImplementationDetails) |
1989 |
+ |
return; |
1990 |
+ |
|
1991 |
+ |
ThreadFactory returnsTerminatedThread = runnableIgnored -> { |
1992 |
+ |
Thread thread = new Thread(() -> {}); |
1993 |
+ |
thread.start(); |
1994 |
+ |
try { thread.join(); } |
1995 |
+ |
catch (InterruptedException ex) { throw new Error(ex); } |
1996 |
+ |
return thread; |
1997 |
+ |
}; |
1998 |
+ |
ThreadPoolExecutor p = |
1999 |
+ |
new ThreadPoolExecutor(1, 1, 1, SECONDS, |
2000 |
+ |
new ArrayBlockingQueue<Runnable>(1), |
2001 |
+ |
returnsTerminatedThread); |
2002 |
+ |
try (PoolCleaner cleaner = cleaner(p)) { |
2003 |
+ |
assertThrows(IllegalThreadStateException.class, |
2004 |
+ |
() -> p.execute(() -> {})); |
2005 |
+ |
} |
2006 |
+ |
} |
2007 |
+ |
|
2008 |
+ |
public void testThreadFactoryReturnsStartedThread_shouldThrow() { |
2009 |
+ |
if (!testImplementationDetails) |
2010 |
+ |
return; |
2011 |
+ |
|
2012 |
+ |
CountDownLatch latch = new CountDownLatch(1); |
2013 |
+ |
Runnable awaitLatch = () -> { |
2014 |
+ |
try { latch.await(); } |
2015 |
+ |
catch (InterruptedException ex) { throw new Error(ex); }}; |
2016 |
+ |
ThreadFactory returnsStartedThread = runnable -> { |
2017 |
+ |
Thread thread = new Thread(awaitLatch); |
2018 |
+ |
thread.start(); |
2019 |
+ |
return thread; |
2020 |
+ |
}; |
2021 |
+ |
ThreadPoolExecutor p = |
2022 |
+ |
new ThreadPoolExecutor(1, 1, 1, SECONDS, |
2023 |
+ |
new ArrayBlockingQueue<Runnable>(1), |
2024 |
+ |
returnsStartedThread); |
2025 |
+ |
try (PoolCleaner cleaner = cleaner(p)) { |
2026 |
+ |
assertThrows(IllegalThreadStateException.class, |
2027 |
+ |
() -> p.execute(() -> {})); |
2028 |
+ |
latch.countDown(); |
2029 |
+ |
} |
2030 |
+ |
} |
2031 |
+ |
|
2032 |
|
} |