1 |
|
/* |
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 |
4 |
< |
* http://creativecommons.org/licenses/publicdomain |
4 |
> |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
|
* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
|
* Pat Fisher, Mike Judd. |
7 |
|
*/ |
8 |
|
|
9 |
|
import junit.framework.*; |
10 |
< |
import java.util.*; |
10 |
> |
import java.io.ByteArrayInputStream; |
11 |
> |
import java.io.ByteArrayOutputStream; |
12 |
> |
import java.io.ObjectInputStream; |
13 |
> |
import java.io.ObjectOutputStream; |
14 |
> |
import java.util.ArrayList; |
15 |
> |
import java.util.Arrays; |
16 |
> |
import java.util.Date; |
17 |
> |
import java.util.Enumeration; |
18 |
> |
import java.util.List; |
19 |
> |
import java.util.NoSuchElementException; |
20 |
> |
import java.util.PropertyPermission; |
21 |
|
import java.util.concurrent.*; |
22 |
+ |
import java.util.concurrent.atomic.AtomicBoolean; |
23 |
+ |
import java.util.concurrent.atomic.AtomicReference; |
24 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
25 |
< |
import java.io.*; |
26 |
< |
import java.security.*; |
25 |
> |
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
26 |
> |
import java.security.CodeSource; |
27 |
> |
import java.security.Permission; |
28 |
> |
import java.security.PermissionCollection; |
29 |
> |
import java.security.Permissions; |
30 |
> |
import java.security.Policy; |
31 |
> |
import java.security.ProtectionDomain; |
32 |
> |
import java.security.SecurityPermission; |
33 |
|
|
34 |
|
/** |
35 |
|
* Base class for JSR166 Junit TCK tests. Defines some constants, |
44 |
|
* <li> All assertions in code running in generated threads must use |
45 |
|
* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link |
46 |
|
* #threadAssertEquals}, or {@link #threadAssertNull}, (not |
47 |
< |
* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not |
47 |
> |
* {@code fail}, {@code assertTrue}, etc.) It is OK (but not |
48 |
|
* particularly recommended) for other code to use these forms too. |
49 |
|
* Only the most typically used JUnit assertion methods are defined |
50 |
|
* this way, but enough to live with.</li> |
51 |
|
* |
52 |
|
* <li> If you override {@link #setUp} or {@link #tearDown}, make sure |
53 |
< |
* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within |
53 |
> |
* to invoke {@code super.setUp} and {@code super.tearDown} within |
54 |
|
* them. These methods are used to clear and check for thread |
55 |
|
* assertion failures.</li> |
56 |
|
* |
57 |
< |
* <li>All delays and timeouts must use one of the constants <tt> |
58 |
< |
* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>, |
59 |
< |
* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always |
57 |
> |
* <li>All delays and timeouts must use one of the constants {@code |
58 |
> |
* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS}, |
59 |
> |
* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always |
60 |
|
* discriminable from zero time, and always allows enough time for the |
61 |
|
* small amounts of computation (creating a thread, calling a few |
62 |
|
* methods, etc) needed to reach a timeout point. Similarly, a SMALL |
66 |
|
* in one spot to rerun tests on slower platforms.</li> |
67 |
|
* |
68 |
|
* <li> All threads generated must be joined inside each test case |
69 |
< |
* method (or <tt>fail</tt> to do so) before returning from the |
70 |
< |
* method. The <tt> joinPool</tt> method can be used to do this when |
69 |
> |
* method (or {@code fail} to do so) before returning from the |
70 |
> |
* method. The {@code joinPool} method can be used to do this when |
71 |
|
* using Executors.</li> |
72 |
|
* |
73 |
|
* </ol> |
74 |
|
* |
75 |
< |
* <p> <b>Other notes</b> |
75 |
> |
* <p><b>Other notes</b> |
76 |
|
* <ul> |
77 |
|
* |
78 |
|
* <li> Usually, there is one testcase method per JSR166 method |
99 |
|
* any particular package to simplify things for people integrating |
100 |
|
* them in TCK test suites.</li> |
101 |
|
* |
102 |
< |
* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase) |
102 |
> |
* <li> As a convenience, the {@code main} of this class (JSR166TestCase) |
103 |
|
* runs all JSR166 unit tests.</li> |
104 |
|
* |
105 |
|
* </ul> |
106 |
|
*/ |
107 |
|
public class JSR166TestCase extends TestCase { |
108 |
+ |
private static final boolean useSecurityManager = |
109 |
+ |
Boolean.getBoolean("jsr166.useSecurityManager"); |
110 |
+ |
|
111 |
+ |
protected static final boolean expensiveTests = |
112 |
+ |
Boolean.getBoolean("jsr166.expensiveTests"); |
113 |
+ |
|
114 |
+ |
/** |
115 |
+ |
* If true, report on stdout all "slow" tests, that is, ones that |
116 |
+ |
* take more than profileThreshold milliseconds to execute. |
117 |
+ |
*/ |
118 |
+ |
private static final boolean profileTests = |
119 |
+ |
Boolean.getBoolean("jsr166.profileTests"); |
120 |
+ |
|
121 |
|
/** |
122 |
< |
* Runs all JSR166 unit tests using junit.textui.TestRunner |
122 |
> |
* The number of milliseconds that tests are permitted for |
123 |
> |
* execution without being reported, when profileTests is set. |
124 |
|
*/ |
125 |
< |
public static void main (String[] args) { |
126 |
< |
int iters = 1; |
127 |
< |
if (args.length > 0) |
128 |
< |
iters = Integer.parseInt(args[0]); |
125 |
> |
private static final long profileThreshold = |
126 |
> |
Long.getLong("jsr166.profileThreshold", 100); |
127 |
> |
|
128 |
> |
protected void runTest() throws Throwable { |
129 |
> |
if (profileTests) |
130 |
> |
runTestProfiled(); |
131 |
> |
else |
132 |
> |
super.runTest(); |
133 |
> |
} |
134 |
> |
|
135 |
> |
protected void runTestProfiled() throws Throwable { |
136 |
> |
long t0 = System.nanoTime(); |
137 |
> |
try { |
138 |
> |
super.runTest(); |
139 |
> |
} finally { |
140 |
> |
long elapsedMillis = |
141 |
> |
(System.nanoTime() - t0) / (1000L * 1000L); |
142 |
> |
if (elapsedMillis >= profileThreshold) |
143 |
> |
System.out.printf("%n%s: %d%n", toString(), elapsedMillis); |
144 |
> |
} |
145 |
> |
} |
146 |
> |
|
147 |
> |
/** |
148 |
> |
* Runs all JSR166 unit tests using junit.textui.TestRunner. |
149 |
> |
* Optional command line arg provides the number of iterations to |
150 |
> |
* repeat running the tests. |
151 |
> |
*/ |
152 |
> |
public static void main(String[] args) { |
153 |
> |
if (useSecurityManager) { |
154 |
> |
System.err.println("Setting a permissive security manager"); |
155 |
> |
Policy.setPolicy(permissivePolicy()); |
156 |
> |
System.setSecurityManager(new SecurityManager()); |
157 |
> |
} |
158 |
> |
int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]); |
159 |
> |
|
160 |
|
Test s = suite(); |
161 |
|
for (int i = 0; i < iters; ++i) { |
162 |
< |
junit.textui.TestRunner.run (s); |
162 |
> |
junit.textui.TestRunner.run(s); |
163 |
|
System.gc(); |
164 |
|
System.runFinalization(); |
165 |
|
} |
166 |
|
System.exit(0); |
167 |
|
} |
168 |
|
|
169 |
+ |
public static TestSuite newTestSuite(Object... suiteOrClasses) { |
170 |
+ |
TestSuite suite = new TestSuite(); |
171 |
+ |
for (Object suiteOrClass : suiteOrClasses) { |
172 |
+ |
if (suiteOrClass instanceof TestSuite) |
173 |
+ |
suite.addTest((TestSuite) suiteOrClass); |
174 |
+ |
else if (suiteOrClass instanceof Class) |
175 |
+ |
suite.addTest(new TestSuite((Class<?>) suiteOrClass)); |
176 |
+ |
else |
177 |
+ |
throw new ClassCastException("not a test suite or class"); |
178 |
+ |
} |
179 |
+ |
return suite; |
180 |
+ |
} |
181 |
+ |
|
182 |
|
/** |
183 |
< |
* Collects all JSR166 unit tests as one suite |
183 |
> |
* Collects all JSR166 unit tests as one suite. |
184 |
|
*/ |
185 |
< |
public static Test suite ( ) { |
186 |
< |
TestSuite suite = new TestSuite("JSR166 Unit Tests"); |
187 |
< |
|
188 |
< |
suite.addTest(new TestSuite(ForkJoinPoolTest.class)); |
189 |
< |
suite.addTest(new TestSuite(ForkJoinTaskTest.class)); |
190 |
< |
suite.addTest(new TestSuite(RecursiveActionTest.class)); |
191 |
< |
suite.addTest(new TestSuite(RecursiveTaskTest.class)); |
192 |
< |
suite.addTest(new TestSuite(LinkedTransferQueueTest.class)); |
193 |
< |
suite.addTest(new TestSuite(PhaserTest.class)); |
194 |
< |
suite.addTest(new TestSuite(ThreadLocalRandomTest.class)); |
195 |
< |
suite.addTest(new TestSuite(AbstractExecutorServiceTest.class)); |
196 |
< |
suite.addTest(new TestSuite(AbstractQueueTest.class)); |
197 |
< |
suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class)); |
198 |
< |
suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class)); |
199 |
< |
suite.addTest(new TestSuite(ArrayBlockingQueueTest.class)); |
200 |
< |
suite.addTest(new TestSuite(ArrayDequeTest.class)); |
201 |
< |
suite.addTest(new TestSuite(AtomicBooleanTest.class)); |
202 |
< |
suite.addTest(new TestSuite(AtomicIntegerArrayTest.class)); |
203 |
< |
suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class)); |
204 |
< |
suite.addTest(new TestSuite(AtomicIntegerTest.class)); |
205 |
< |
suite.addTest(new TestSuite(AtomicLongArrayTest.class)); |
206 |
< |
suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class)); |
207 |
< |
suite.addTest(new TestSuite(AtomicLongTest.class)); |
208 |
< |
suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class)); |
209 |
< |
suite.addTest(new TestSuite(AtomicReferenceArrayTest.class)); |
210 |
< |
suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class)); |
211 |
< |
suite.addTest(new TestSuite(AtomicReferenceTest.class)); |
212 |
< |
suite.addTest(new TestSuite(AtomicStampedReferenceTest.class)); |
213 |
< |
suite.addTest(new TestSuite(ConcurrentHashMapTest.class)); |
214 |
< |
suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class)); |
215 |
< |
suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class)); |
216 |
< |
suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class)); |
217 |
< |
suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class)); |
218 |
< |
suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class)); |
219 |
< |
suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class)); |
220 |
< |
suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class)); |
221 |
< |
suite.addTest(new TestSuite(CountDownLatchTest.class)); |
222 |
< |
suite.addTest(new TestSuite(CyclicBarrierTest.class)); |
223 |
< |
suite.addTest(new TestSuite(DelayQueueTest.class)); |
224 |
< |
suite.addTest(new TestSuite(EntryTest.class)); |
225 |
< |
suite.addTest(new TestSuite(ExchangerTest.class)); |
226 |
< |
suite.addTest(new TestSuite(ExecutorsTest.class)); |
227 |
< |
suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class)); |
228 |
< |
suite.addTest(new TestSuite(FutureTaskTest.class)); |
229 |
< |
suite.addTest(new TestSuite(LinkedBlockingDequeTest.class)); |
230 |
< |
suite.addTest(new TestSuite(LinkedBlockingQueueTest.class)); |
231 |
< |
suite.addTest(new TestSuite(LinkedListTest.class)); |
232 |
< |
suite.addTest(new TestSuite(LockSupportTest.class)); |
233 |
< |
suite.addTest(new TestSuite(PriorityBlockingQueueTest.class)); |
234 |
< |
suite.addTest(new TestSuite(PriorityQueueTest.class)); |
235 |
< |
suite.addTest(new TestSuite(ReentrantLockTest.class)); |
236 |
< |
suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class)); |
237 |
< |
suite.addTest(new TestSuite(ScheduledExecutorTest.class)); |
238 |
< |
suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class)); |
239 |
< |
suite.addTest(new TestSuite(SemaphoreTest.class)); |
240 |
< |
suite.addTest(new TestSuite(SynchronousQueueTest.class)); |
241 |
< |
suite.addTest(new TestSuite(SystemTest.class)); |
242 |
< |
suite.addTest(new TestSuite(ThreadLocalTest.class)); |
243 |
< |
suite.addTest(new TestSuite(ThreadPoolExecutorTest.class)); |
244 |
< |
suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class)); |
245 |
< |
suite.addTest(new TestSuite(ThreadTest.class)); |
246 |
< |
suite.addTest(new TestSuite(TimeUnitTest.class)); |
247 |
< |
suite.addTest(new TestSuite(TreeMapTest.class)); |
248 |
< |
suite.addTest(new TestSuite(TreeSetTest.class)); |
249 |
< |
suite.addTest(new TestSuite(TreeSubMapTest.class)); |
250 |
< |
suite.addTest(new TestSuite(TreeSubSetTest.class)); |
175 |
< |
|
176 |
< |
return suite; |
185 |
> |
public static Test suite() { |
186 |
> |
return newTestSuite( |
187 |
> |
ForkJoinPoolTest.suite(), |
188 |
> |
ForkJoinTaskTest.suite(), |
189 |
> |
RecursiveActionTest.suite(), |
190 |
> |
RecursiveTaskTest.suite(), |
191 |
> |
LinkedTransferQueueTest.suite(), |
192 |
> |
PhaserTest.suite(), |
193 |
> |
ThreadLocalRandomTest.suite(), |
194 |
> |
AbstractExecutorServiceTest.suite(), |
195 |
> |
AbstractQueueTest.suite(), |
196 |
> |
AbstractQueuedSynchronizerTest.suite(), |
197 |
> |
AbstractQueuedLongSynchronizerTest.suite(), |
198 |
> |
ArrayBlockingQueueTest.suite(), |
199 |
> |
ArrayDequeTest.suite(), |
200 |
> |
AtomicBooleanTest.suite(), |
201 |
> |
AtomicIntegerArrayTest.suite(), |
202 |
> |
AtomicIntegerFieldUpdaterTest.suite(), |
203 |
> |
AtomicIntegerTest.suite(), |
204 |
> |
AtomicLongArrayTest.suite(), |
205 |
> |
AtomicLongFieldUpdaterTest.suite(), |
206 |
> |
AtomicLongTest.suite(), |
207 |
> |
AtomicMarkableReferenceTest.suite(), |
208 |
> |
AtomicReferenceArrayTest.suite(), |
209 |
> |
AtomicReferenceFieldUpdaterTest.suite(), |
210 |
> |
AtomicReferenceTest.suite(), |
211 |
> |
AtomicStampedReferenceTest.suite(), |
212 |
> |
ConcurrentHashMapTest.suite(), |
213 |
> |
ConcurrentLinkedDequeTest.suite(), |
214 |
> |
ConcurrentLinkedQueueTest.suite(), |
215 |
> |
ConcurrentSkipListMapTest.suite(), |
216 |
> |
ConcurrentSkipListSubMapTest.suite(), |
217 |
> |
ConcurrentSkipListSetTest.suite(), |
218 |
> |
ConcurrentSkipListSubSetTest.suite(), |
219 |
> |
CopyOnWriteArrayListTest.suite(), |
220 |
> |
CopyOnWriteArraySetTest.suite(), |
221 |
> |
CountDownLatchTest.suite(), |
222 |
> |
CyclicBarrierTest.suite(), |
223 |
> |
DelayQueueTest.suite(), |
224 |
> |
EntryTest.suite(), |
225 |
> |
ExchangerTest.suite(), |
226 |
> |
ExecutorsTest.suite(), |
227 |
> |
ExecutorCompletionServiceTest.suite(), |
228 |
> |
FutureTaskTest.suite(), |
229 |
> |
LinkedBlockingDequeTest.suite(), |
230 |
> |
LinkedBlockingQueueTest.suite(), |
231 |
> |
LinkedListTest.suite(), |
232 |
> |
LockSupportTest.suite(), |
233 |
> |
PriorityBlockingQueueTest.suite(), |
234 |
> |
PriorityQueueTest.suite(), |
235 |
> |
ReentrantLockTest.suite(), |
236 |
> |
ReentrantReadWriteLockTest.suite(), |
237 |
> |
ScheduledExecutorTest.suite(), |
238 |
> |
ScheduledExecutorSubclassTest.suite(), |
239 |
> |
SemaphoreTest.suite(), |
240 |
> |
SynchronousQueueTest.suite(), |
241 |
> |
SystemTest.suite(), |
242 |
> |
ThreadLocalTest.suite(), |
243 |
> |
ThreadPoolExecutorTest.suite(), |
244 |
> |
ThreadPoolExecutorSubclassTest.suite(), |
245 |
> |
ThreadTest.suite(), |
246 |
> |
TimeUnitTest.suite(), |
247 |
> |
TreeMapTest.suite(), |
248 |
> |
TreeSetTest.suite(), |
249 |
> |
TreeSubMapTest.suite(), |
250 |
> |
TreeSubSetTest.suite()); |
251 |
|
} |
252 |
|
|
253 |
|
|
265 |
|
return 50; |
266 |
|
} |
267 |
|
|
194 |
– |
|
268 |
|
/** |
269 |
|
* Sets delays as multiples of SHORT_DELAY. |
270 |
|
*/ |
271 |
< |
protected void setDelays() { |
271 |
> |
protected void setDelays() { |
272 |
|
SHORT_DELAY_MS = getShortDelay(); |
273 |
< |
SMALL_DELAY_MS = SHORT_DELAY_MS * 5; |
273 |
> |
SMALL_DELAY_MS = SHORT_DELAY_MS * 5; |
274 |
|
MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10; |
275 |
< |
LONG_DELAY_MS = SHORT_DELAY_MS * 50; |
275 |
> |
LONG_DELAY_MS = SHORT_DELAY_MS * 200; |
276 |
> |
} |
277 |
> |
|
278 |
> |
/** |
279 |
> |
* Returns a timeout in milliseconds to be used in tests that |
280 |
> |
* verify that operations block or time out. |
281 |
> |
*/ |
282 |
> |
long timeoutMillis() { |
283 |
> |
return SHORT_DELAY_MS / 4; |
284 |
> |
} |
285 |
> |
|
286 |
> |
/** |
287 |
> |
* Returns a new Date instance representing a time delayMillis |
288 |
> |
* milliseconds in the future. |
289 |
> |
*/ |
290 |
> |
Date delayedDate(long delayMillis) { |
291 |
> |
return new Date(System.currentTimeMillis() + delayMillis); |
292 |
|
} |
293 |
|
|
294 |
|
/** |
295 |
< |
* Flag set true if any threadAssert methods fail |
295 |
> |
* The first exception encountered if any threadAssertXXX method fails. |
296 |
|
*/ |
297 |
< |
volatile boolean threadFailed; |
297 |
> |
private final AtomicReference<Throwable> threadFailure |
298 |
> |
= new AtomicReference<Throwable>(null); |
299 |
|
|
300 |
|
/** |
301 |
< |
* Initializes test to indicate that no thread assertions have failed |
301 |
> |
* Records an exception so that it can be rethrown later in the test |
302 |
> |
* harness thread, triggering a test case failure. Only the first |
303 |
> |
* failure is recorded; subsequent calls to this method from within |
304 |
> |
* the same test have no effect. |
305 |
|
*/ |
306 |
+ |
public void threadRecordFailure(Throwable t) { |
307 |
+ |
threadFailure.compareAndSet(null, t); |
308 |
+ |
} |
309 |
+ |
|
310 |
|
public void setUp() { |
311 |
|
setDelays(); |
215 |
– |
threadFailed = false; |
312 |
|
} |
313 |
|
|
314 |
|
/** |
315 |
< |
* Triggers test case failure if any thread assertions have failed |
316 |
< |
*/ |
317 |
< |
public void tearDown() { |
318 |
< |
assertFalse(threadFailed); |
315 |
> |
* Extra checks that get done for all test cases. |
316 |
> |
* |
317 |
> |
* Triggers test case failure if any thread assertions have failed, |
318 |
> |
* by rethrowing, in the test harness thread, any exception recorded |
319 |
> |
* earlier by threadRecordFailure. |
320 |
> |
* |
321 |
> |
* Triggers test case failure if interrupt status is set in the main thread. |
322 |
> |
*/ |
323 |
> |
public void tearDown() throws Exception { |
324 |
> |
Throwable t = threadFailure.getAndSet(null); |
325 |
> |
if (t != null) { |
326 |
> |
if (t instanceof Error) |
327 |
> |
throw (Error) t; |
328 |
> |
else if (t instanceof RuntimeException) |
329 |
> |
throw (RuntimeException) t; |
330 |
> |
else if (t instanceof Exception) |
331 |
> |
throw (Exception) t; |
332 |
> |
else { |
333 |
> |
AssertionFailedError afe = |
334 |
> |
new AssertionFailedError(t.toString()); |
335 |
> |
afe.initCause(t); |
336 |
> |
throw afe; |
337 |
> |
} |
338 |
> |
} |
339 |
> |
|
340 |
> |
if (Thread.interrupted()) |
341 |
> |
throw new AssertionFailedError("interrupt status set in main thread"); |
342 |
|
} |
343 |
|
|
344 |
|
/** |
345 |
< |
* Fail, also setting status to indicate current testcase should fail |
345 |
> |
* Just like fail(reason), but additionally recording (using |
346 |
> |
* threadRecordFailure) any AssertionFailedError thrown, so that |
347 |
> |
* the current testcase will fail. |
348 |
|
*/ |
349 |
|
public void threadFail(String reason) { |
350 |
< |
threadFailed = true; |
351 |
< |
fail(reason); |
350 |
> |
try { |
351 |
> |
fail(reason); |
352 |
> |
} catch (AssertionFailedError t) { |
353 |
> |
threadRecordFailure(t); |
354 |
> |
fail(reason); |
355 |
> |
} |
356 |
|
} |
357 |
|
|
358 |
|
/** |
359 |
< |
* If expression not true, set status to indicate current testcase |
360 |
< |
* should fail |
359 |
> |
* Just like assertTrue(b), but additionally recording (using |
360 |
> |
* threadRecordFailure) any AssertionFailedError thrown, so that |
361 |
> |
* the current testcase will fail. |
362 |
|
*/ |
363 |
|
public void threadAssertTrue(boolean b) { |
364 |
< |
if (!b) { |
239 |
< |
threadFailed = true; |
364 |
> |
try { |
365 |
|
assertTrue(b); |
366 |
+ |
} catch (AssertionFailedError t) { |
367 |
+ |
threadRecordFailure(t); |
368 |
+ |
throw t; |
369 |
|
} |
370 |
|
} |
371 |
|
|
372 |
|
/** |
373 |
< |
* If expression not false, set status to indicate current testcase |
374 |
< |
* should fail |
373 |
> |
* Just like assertFalse(b), but additionally recording (using |
374 |
> |
* threadRecordFailure) any AssertionFailedError thrown, so that |
375 |
> |
* the current testcase will fail. |
376 |
|
*/ |
377 |
|
public void threadAssertFalse(boolean b) { |
378 |
< |
if (b) { |
250 |
< |
threadFailed = true; |
378 |
> |
try { |
379 |
|
assertFalse(b); |
380 |
+ |
} catch (AssertionFailedError t) { |
381 |
+ |
threadRecordFailure(t); |
382 |
+ |
throw t; |
383 |
|
} |
384 |
|
} |
385 |
|
|
386 |
|
/** |
387 |
< |
* If argument not null, set status to indicate current testcase |
388 |
< |
* should fail |
387 |
> |
* Just like assertNull(x), but additionally recording (using |
388 |
> |
* threadRecordFailure) any AssertionFailedError thrown, so that |
389 |
> |
* the current testcase will fail. |
390 |
|
*/ |
391 |
|
public void threadAssertNull(Object x) { |
392 |
< |
if (x != null) { |
261 |
< |
threadFailed = true; |
392 |
> |
try { |
393 |
|
assertNull(x); |
394 |
+ |
} catch (AssertionFailedError t) { |
395 |
+ |
threadRecordFailure(t); |
396 |
+ |
throw t; |
397 |
|
} |
398 |
|
} |
399 |
|
|
400 |
|
/** |
401 |
< |
* If arguments not equal, set status to indicate current testcase |
402 |
< |
* should fail |
401 |
> |
* Just like assertEquals(x, y), but additionally recording (using |
402 |
> |
* threadRecordFailure) any AssertionFailedError thrown, so that |
403 |
> |
* the current testcase will fail. |
404 |
|
*/ |
405 |
|
public void threadAssertEquals(long x, long y) { |
406 |
< |
if (x != y) { |
272 |
< |
threadFailed = true; |
406 |
> |
try { |
407 |
|
assertEquals(x, y); |
408 |
+ |
} catch (AssertionFailedError t) { |
409 |
+ |
threadRecordFailure(t); |
410 |
+ |
throw t; |
411 |
|
} |
412 |
|
} |
413 |
|
|
414 |
|
/** |
415 |
< |
* If arguments not equal, set status to indicate current testcase |
416 |
< |
* should fail |
415 |
> |
* Just like assertEquals(x, y), but additionally recording (using |
416 |
> |
* threadRecordFailure) any AssertionFailedError thrown, so that |
417 |
> |
* the current testcase will fail. |
418 |
|
*/ |
419 |
|
public void threadAssertEquals(Object x, Object y) { |
420 |
< |
if (x != y && (x == null || !x.equals(y))) { |
283 |
< |
threadFailed = true; |
420 |
> |
try { |
421 |
|
assertEquals(x, y); |
422 |
+ |
} catch (AssertionFailedError t) { |
423 |
+ |
threadRecordFailure(t); |
424 |
+ |
throw t; |
425 |
+ |
} catch (Throwable t) { |
426 |
+ |
threadUnexpectedException(t); |
427 |
+ |
} |
428 |
+ |
} |
429 |
+ |
|
430 |
+ |
/** |
431 |
+ |
* Just like assertSame(x, y), but additionally recording (using |
432 |
+ |
* threadRecordFailure) any AssertionFailedError thrown, so that |
433 |
+ |
* the current testcase will fail. |
434 |
+ |
*/ |
435 |
+ |
public void threadAssertSame(Object x, Object y) { |
436 |
+ |
try { |
437 |
+ |
assertSame(x, y); |
438 |
+ |
} catch (AssertionFailedError t) { |
439 |
+ |
threadRecordFailure(t); |
440 |
+ |
throw t; |
441 |
|
} |
442 |
|
} |
443 |
|
|
444 |
|
/** |
445 |
< |
* threadFail with message "should throw exception" |
445 |
> |
* Calls threadFail with message "should throw exception". |
446 |
|
*/ |
447 |
|
public void threadShouldThrow() { |
448 |
< |
threadFailed = true; |
449 |
< |
fail("should throw exception"); |
448 |
> |
threadFail("should throw exception"); |
449 |
> |
} |
450 |
> |
|
451 |
> |
/** |
452 |
> |
* Calls threadFail with message "should throw" + exceptionName. |
453 |
> |
*/ |
454 |
> |
public void threadShouldThrow(String exceptionName) { |
455 |
> |
threadFail("should throw " + exceptionName); |
456 |
|
} |
457 |
|
|
458 |
|
/** |
459 |
< |
* threadFail with message "Unexpected exception" |
459 |
> |
* Records the given exception using {@link #threadRecordFailure}, |
460 |
> |
* then rethrows the exception, wrapping it in an |
461 |
> |
* AssertionFailedError if necessary. |
462 |
|
*/ |
463 |
< |
public void threadUnexpectedException() { |
464 |
< |
threadFailed = true; |
465 |
< |
fail("Unexpected exception"); |
463 |
> |
public void threadUnexpectedException(Throwable t) { |
464 |
> |
threadRecordFailure(t); |
465 |
> |
t.printStackTrace(); |
466 |
> |
if (t instanceof RuntimeException) |
467 |
> |
throw (RuntimeException) t; |
468 |
> |
else if (t instanceof Error) |
469 |
> |
throw (Error) t; |
470 |
> |
else { |
471 |
> |
AssertionFailedError afe = |
472 |
> |
new AssertionFailedError("unexpected exception: " + t); |
473 |
> |
afe.initCause(t); |
474 |
> |
throw afe; |
475 |
> |
} |
476 |
|
} |
477 |
|
|
478 |
|
/** |
479 |
< |
* threadFail with message "Unexpected exception", with argument |
479 |
> |
* Delays, via Thread.sleep, for the given millisecond delay, but |
480 |
> |
* if the sleep is shorter than specified, may re-sleep or yield |
481 |
> |
* until time elapses. |
482 |
|
*/ |
483 |
< |
public void threadUnexpectedException(Throwable ex) { |
484 |
< |
threadFailed = true; |
485 |
< |
ex.printStackTrace(); |
486 |
< |
fail("Unexpected exception: " + ex); |
483 |
> |
static void delay(long millis) throws InterruptedException { |
484 |
> |
long startTime = System.nanoTime(); |
485 |
> |
long ns = millis * 1000 * 1000; |
486 |
> |
for (;;) { |
487 |
> |
if (millis > 0L) |
488 |
> |
Thread.sleep(millis); |
489 |
> |
else // too short to sleep |
490 |
> |
Thread.yield(); |
491 |
> |
long d = ns - (System.nanoTime() - startTime); |
492 |
> |
if (d > 0L) |
493 |
> |
millis = d / (1000 * 1000); |
494 |
> |
else |
495 |
> |
break; |
496 |
> |
} |
497 |
|
} |
498 |
|
|
499 |
|
/** |
500 |
< |
* Wait out termination of a thread pool or fail doing so |
500 |
> |
* Waits out termination of a thread pool or fails doing so. |
501 |
|
*/ |
502 |
< |
public void joinPool(ExecutorService exec) { |
502 |
> |
void joinPool(ExecutorService exec) { |
503 |
|
try { |
504 |
|
exec.shutdown(); |
505 |
< |
assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
505 |
> |
assertTrue("ExecutorService did not terminate in a timely manner", |
506 |
> |
exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)); |
507 |
|
} catch (SecurityException ok) { |
508 |
|
// Allowed in case test doesn't have privs |
509 |
|
} catch (InterruptedException ie) { |
510 |
< |
fail("Unexpected exception"); |
510 |
> |
fail("Unexpected InterruptedException"); |
511 |
|
} |
512 |
|
} |
513 |
|
|
514 |
+ |
/** |
515 |
+ |
* A debugging tool to print all stack traces, as jstack does. |
516 |
+ |
*/ |
517 |
+ |
void printAllStackTraces() { |
518 |
+ |
System.err.println( |
519 |
+ |
Arrays.toString( |
520 |
+ |
java.lang.management.ManagementFactory.getThreadMXBean() |
521 |
+ |
.dumpAllThreads(true, true))); |
522 |
+ |
} |
523 |
|
|
524 |
|
/** |
525 |
< |
* fail with message "should throw exception" |
525 |
> |
* Checks that thread does not terminate within the default |
526 |
> |
* millisecond delay of {@code timeoutMillis()}. |
527 |
|
*/ |
528 |
< |
public void shouldThrow() { |
529 |
< |
fail("Should throw exception"); |
528 |
> |
void assertThreadStaysAlive(Thread thread) { |
529 |
> |
assertThreadStaysAlive(thread, timeoutMillis()); |
530 |
> |
} |
531 |
> |
|
532 |
> |
/** |
533 |
> |
* Checks that thread does not terminate within the given millisecond delay. |
534 |
> |
*/ |
535 |
> |
void assertThreadStaysAlive(Thread thread, long millis) { |
536 |
> |
try { |
537 |
> |
// No need to optimize the failing case via Thread.join. |
538 |
> |
delay(millis); |
539 |
> |
assertTrue(thread.isAlive()); |
540 |
> |
} catch (InterruptedException ie) { |
541 |
> |
fail("Unexpected InterruptedException"); |
542 |
> |
} |
543 |
|
} |
544 |
|
|
545 |
|
/** |
546 |
< |
* fail with message "Unexpected exception" |
546 |
> |
* Checks that the threads do not terminate within the default |
547 |
> |
* millisecond delay of {@code timeoutMillis()}. |
548 |
|
*/ |
549 |
< |
public void unexpectedException() { |
550 |
< |
fail("Unexpected exception"); |
549 |
> |
void assertThreadsStayAlive(Thread... threads) { |
550 |
> |
assertThreadsStayAlive(timeoutMillis(), threads); |
551 |
|
} |
552 |
|
|
553 |
|
/** |
554 |
< |
* fail with message "Unexpected exception", with argument |
554 |
> |
* Checks that the threads do not terminate within the given millisecond delay. |
555 |
|
*/ |
556 |
< |
public void unexpectedException(Throwable ex) { |
557 |
< |
ex.printStackTrace(); |
558 |
< |
fail("Unexpected exception: " + ex); |
556 |
> |
void assertThreadsStayAlive(long millis, Thread... threads) { |
557 |
> |
try { |
558 |
> |
// No need to optimize the failing case via Thread.join. |
559 |
> |
delay(millis); |
560 |
> |
for (Thread thread : threads) |
561 |
> |
assertTrue(thread.isAlive()); |
562 |
> |
} catch (InterruptedException ie) { |
563 |
> |
fail("Unexpected InterruptedException"); |
564 |
> |
} |
565 |
|
} |
566 |
|
|
567 |
+ |
/** |
568 |
+ |
* Checks that future.get times out, with the default timeout of |
569 |
+ |
* {@code timeoutMillis()}. |
570 |
+ |
*/ |
571 |
+ |
void assertFutureTimesOut(Future future) { |
572 |
+ |
assertFutureTimesOut(future, timeoutMillis()); |
573 |
+ |
} |
574 |
+ |
|
575 |
+ |
/** |
576 |
+ |
* Checks that future.get times out, with the given millisecond timeout. |
577 |
+ |
*/ |
578 |
+ |
void assertFutureTimesOut(Future future, long timeoutMillis) { |
579 |
+ |
long startTime = System.nanoTime(); |
580 |
+ |
try { |
581 |
+ |
future.get(timeoutMillis, MILLISECONDS); |
582 |
+ |
shouldThrow(); |
583 |
+ |
} catch (TimeoutException success) { |
584 |
+ |
} catch (Exception e) { |
585 |
+ |
threadUnexpectedException(e); |
586 |
+ |
} finally { future.cancel(true); } |
587 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
588 |
+ |
} |
589 |
+ |
|
590 |
+ |
/** |
591 |
+ |
* Fails with message "should throw exception". |
592 |
+ |
*/ |
593 |
+ |
public void shouldThrow() { |
594 |
+ |
fail("Should throw exception"); |
595 |
+ |
} |
596 |
+ |
|
597 |
+ |
/** |
598 |
+ |
* Fails with message "should throw " + exceptionName. |
599 |
+ |
*/ |
600 |
+ |
public void shouldThrow(String exceptionName) { |
601 |
+ |
fail("Should throw " + exceptionName); |
602 |
+ |
} |
603 |
|
|
604 |
|
/** |
605 |
|
* The number of elements to place in collections, arrays, etc. |
606 |
|
*/ |
607 |
< |
static final int SIZE = 20; |
607 |
> |
public static final int SIZE = 20; |
608 |
|
|
609 |
|
// Some convenient Integer constants |
610 |
|
|
611 |
< |
static final Integer zero = new Integer(0); |
612 |
< |
static final Integer one = new Integer(1); |
613 |
< |
static final Integer two = new Integer(2); |
614 |
< |
static final Integer three = new Integer(3); |
615 |
< |
static final Integer four = new Integer(4); |
616 |
< |
static final Integer five = new Integer(5); |
617 |
< |
static final Integer six = new Integer(6); |
618 |
< |
static final Integer seven = new Integer(7); |
619 |
< |
static final Integer eight = new Integer(8); |
620 |
< |
static final Integer nine = new Integer(9); |
621 |
< |
static final Integer m1 = new Integer(-1); |
622 |
< |
static final Integer m2 = new Integer(-2); |
623 |
< |
static final Integer m3 = new Integer(-3); |
624 |
< |
static final Integer m4 = new Integer(-4); |
625 |
< |
static final Integer m5 = new Integer(-5); |
626 |
< |
static final Integer m6 = new Integer(-6); |
627 |
< |
static final Integer m10 = new Integer(-10); |
611 |
> |
public static final Integer zero = new Integer(0); |
612 |
> |
public static final Integer one = new Integer(1); |
613 |
> |
public static final Integer two = new Integer(2); |
614 |
> |
public static final Integer three = new Integer(3); |
615 |
> |
public static final Integer four = new Integer(4); |
616 |
> |
public static final Integer five = new Integer(5); |
617 |
> |
public static final Integer six = new Integer(6); |
618 |
> |
public static final Integer seven = new Integer(7); |
619 |
> |
public static final Integer eight = new Integer(8); |
620 |
> |
public static final Integer nine = new Integer(9); |
621 |
> |
public static final Integer m1 = new Integer(-1); |
622 |
> |
public static final Integer m2 = new Integer(-2); |
623 |
> |
public static final Integer m3 = new Integer(-3); |
624 |
> |
public static final Integer m4 = new Integer(-4); |
625 |
> |
public static final Integer m5 = new Integer(-5); |
626 |
> |
public static final Integer m6 = new Integer(-6); |
627 |
> |
public static final Integer m10 = new Integer(-10); |
628 |
|
|
629 |
|
|
630 |
|
/** |
631 |
+ |
* Runs Runnable r with a security policy that permits precisely |
632 |
+ |
* the specified permissions. If there is no current security |
633 |
+ |
* manager, the runnable is run twice, both with and without a |
634 |
+ |
* security manager. We require that any security manager permit |
635 |
+ |
* getPolicy/setPolicy. |
636 |
+ |
*/ |
637 |
+ |
public void runWithPermissions(Runnable r, Permission... permissions) { |
638 |
+ |
SecurityManager sm = System.getSecurityManager(); |
639 |
+ |
if (sm == null) { |
640 |
+ |
r.run(); |
641 |
+ |
} |
642 |
+ |
runWithSecurityManagerWithPermissions(r, permissions); |
643 |
+ |
} |
644 |
+ |
|
645 |
+ |
/** |
646 |
+ |
* Runs Runnable r with a security policy that permits precisely |
647 |
+ |
* the specified permissions. If there is no current security |
648 |
+ |
* manager, a temporary one is set for the duration of the |
649 |
+ |
* Runnable. We require that any security manager permit |
650 |
+ |
* getPolicy/setPolicy. |
651 |
+ |
*/ |
652 |
+ |
public void runWithSecurityManagerWithPermissions(Runnable r, |
653 |
+ |
Permission... permissions) { |
654 |
+ |
SecurityManager sm = System.getSecurityManager(); |
655 |
+ |
if (sm == null) { |
656 |
+ |
Policy savedPolicy = Policy.getPolicy(); |
657 |
+ |
try { |
658 |
+ |
Policy.setPolicy(permissivePolicy()); |
659 |
+ |
System.setSecurityManager(new SecurityManager()); |
660 |
+ |
runWithSecurityManagerWithPermissions(r, permissions); |
661 |
+ |
} finally { |
662 |
+ |
System.setSecurityManager(null); |
663 |
+ |
Policy.setPolicy(savedPolicy); |
664 |
+ |
} |
665 |
+ |
} else { |
666 |
+ |
Policy savedPolicy = Policy.getPolicy(); |
667 |
+ |
AdjustablePolicy policy = new AdjustablePolicy(permissions); |
668 |
+ |
Policy.setPolicy(policy); |
669 |
+ |
|
670 |
+ |
try { |
671 |
+ |
r.run(); |
672 |
+ |
} finally { |
673 |
+ |
policy.addPermission(new SecurityPermission("setPolicy")); |
674 |
+ |
Policy.setPolicy(savedPolicy); |
675 |
+ |
} |
676 |
+ |
} |
677 |
+ |
} |
678 |
+ |
|
679 |
+ |
/** |
680 |
+ |
* Runs a runnable without any permissions. |
681 |
+ |
*/ |
682 |
+ |
public void runWithoutPermissions(Runnable r) { |
683 |
+ |
runWithPermissions(r); |
684 |
+ |
} |
685 |
+ |
|
686 |
+ |
/** |
687 |
|
* A security policy where new permissions can be dynamically added |
688 |
|
* or all cleared. |
689 |
|
*/ |
690 |
< |
static class AdjustablePolicy extends java.security.Policy { |
690 |
> |
public static class AdjustablePolicy extends java.security.Policy { |
691 |
|
Permissions perms = new Permissions(); |
692 |
< |
AdjustablePolicy() { } |
692 |
> |
AdjustablePolicy(Permission... permissions) { |
693 |
> |
for (Permission permission : permissions) |
694 |
> |
perms.add(permission); |
695 |
> |
} |
696 |
|
void addPermission(Permission perm) { perms.add(perm); } |
697 |
|
void clearPermissions() { perms = new Permissions(); } |
698 |
< |
public PermissionCollection getPermissions(CodeSource cs) { |
699 |
< |
return perms; |
700 |
< |
} |
701 |
< |
public PermissionCollection getPermissions(ProtectionDomain pd) { |
702 |
< |
return perms; |
703 |
< |
} |
704 |
< |
public boolean implies(ProtectionDomain pd, Permission p) { |
705 |
< |
return perms.implies(p); |
706 |
< |
} |
707 |
< |
public void refresh() {} |
698 |
> |
public PermissionCollection getPermissions(CodeSource cs) { |
699 |
> |
return perms; |
700 |
> |
} |
701 |
> |
public PermissionCollection getPermissions(ProtectionDomain pd) { |
702 |
> |
return perms; |
703 |
> |
} |
704 |
> |
public boolean implies(ProtectionDomain pd, Permission p) { |
705 |
> |
return perms.implies(p); |
706 |
> |
} |
707 |
> |
public void refresh() {} |
708 |
> |
public String toString() { |
709 |
> |
List<Permission> ps = new ArrayList<Permission>(); |
710 |
> |
for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();) |
711 |
> |
ps.add(e.nextElement()); |
712 |
> |
return "AdjustablePolicy with permissions " + ps; |
713 |
> |
} |
714 |
> |
} |
715 |
> |
|
716 |
> |
/** |
717 |
> |
* Returns a policy containing all the permissions we ever need. |
718 |
> |
*/ |
719 |
> |
public static Policy permissivePolicy() { |
720 |
> |
return new AdjustablePolicy |
721 |
> |
// Permissions j.u.c. needs directly |
722 |
> |
(new RuntimePermission("modifyThread"), |
723 |
> |
new RuntimePermission("getClassLoader"), |
724 |
> |
new RuntimePermission("setContextClassLoader"), |
725 |
> |
// Permissions needed to change permissions! |
726 |
> |
new SecurityPermission("getPolicy"), |
727 |
> |
new SecurityPermission("setPolicy"), |
728 |
> |
new RuntimePermission("setSecurityManager"), |
729 |
> |
// Permissions needed by the junit test harness |
730 |
> |
new RuntimePermission("accessDeclaredMembers"), |
731 |
> |
new PropertyPermission("*", "read"), |
732 |
> |
new java.io.FilePermission("<<ALL FILES>>", "read")); |
733 |
|
} |
734 |
|
|
735 |
|
/** |
736 |
< |
* Sleep until the timeout has elapsed, or interrupted. |
737 |
< |
* Does <em>NOT</em> throw InterruptedException. |
736 |
> |
* Sleeps until the given time has elapsed. |
737 |
> |
* Throws AssertionFailedError if interrupted. |
738 |
|
*/ |
739 |
< |
void sleepTillInterrupted(long timeoutMillis) { |
739 |
> |
void sleep(long millis) { |
740 |
|
try { |
741 |
< |
Thread.sleep(timeoutMillis); |
742 |
< |
} catch (InterruptedException wakeup) { |
741 |
> |
delay(millis); |
742 |
> |
} catch (InterruptedException ie) { |
743 |
> |
AssertionFailedError afe = |
744 |
> |
new AssertionFailedError("Unexpected InterruptedException"); |
745 |
> |
afe.initCause(ie); |
746 |
> |
throw afe; |
747 |
> |
} |
748 |
> |
} |
749 |
> |
|
750 |
> |
/** |
751 |
> |
* Spin-waits up to the specified number of milliseconds for the given |
752 |
> |
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
753 |
> |
*/ |
754 |
> |
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) { |
755 |
> |
long startTime = System.nanoTime(); |
756 |
> |
for (;;) { |
757 |
> |
Thread.State s = thread.getState(); |
758 |
> |
if (s == Thread.State.BLOCKED || |
759 |
> |
s == Thread.State.WAITING || |
760 |
> |
s == Thread.State.TIMED_WAITING) |
761 |
> |
return; |
762 |
> |
else if (s == Thread.State.TERMINATED) |
763 |
> |
fail("Unexpected thread termination"); |
764 |
> |
else if (millisElapsedSince(startTime) > timeoutMillis) { |
765 |
> |
threadAssertTrue(thread.isAlive()); |
766 |
> |
return; |
767 |
> |
} |
768 |
> |
Thread.yield(); |
769 |
|
} |
770 |
|
} |
771 |
|
|
772 |
|
/** |
773 |
< |
* Returns a new started Thread running the given runnable. |
773 |
> |
* Waits up to LONG_DELAY_MS for the given thread to enter a wait |
774 |
> |
* state: BLOCKED, WAITING, or TIMED_WAITING. |
775 |
> |
*/ |
776 |
> |
void waitForThreadToEnterWaitState(Thread thread) { |
777 |
> |
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS); |
778 |
> |
} |
779 |
> |
|
780 |
> |
/** |
781 |
> |
* Returns the number of milliseconds since time given by |
782 |
> |
* startNanoTime, which must have been previously returned from a |
783 |
> |
* call to {@link System.nanoTime()}. |
784 |
> |
*/ |
785 |
> |
long millisElapsedSince(long startNanoTime) { |
786 |
> |
return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime); |
787 |
> |
} |
788 |
> |
|
789 |
> |
/** |
790 |
> |
* Returns a new started daemon Thread running the given runnable. |
791 |
|
*/ |
792 |
|
Thread newStartedThread(Runnable runnable) { |
793 |
|
Thread t = new Thread(runnable); |
794 |
+ |
t.setDaemon(true); |
795 |
|
t.start(); |
796 |
|
return t; |
797 |
|
} |
798 |
|
|
799 |
+ |
/** |
800 |
+ |
* Waits for the specified time (in milliseconds) for the thread |
801 |
+ |
* to terminate (using {@link Thread#join(long)}), else interrupts |
802 |
+ |
* the thread (in the hope that it may terminate later) and fails. |
803 |
+ |
*/ |
804 |
+ |
void awaitTermination(Thread t, long timeoutMillis) { |
805 |
+ |
try { |
806 |
+ |
t.join(timeoutMillis); |
807 |
+ |
} catch (InterruptedException ie) { |
808 |
+ |
threadUnexpectedException(ie); |
809 |
+ |
} finally { |
810 |
+ |
if (t.getState() != Thread.State.TERMINATED) { |
811 |
+ |
t.interrupt(); |
812 |
+ |
fail("Test timed out"); |
813 |
+ |
} |
814 |
+ |
} |
815 |
+ |
} |
816 |
+ |
|
817 |
+ |
/** |
818 |
+ |
* Waits for LONG_DELAY_MS milliseconds for the thread to |
819 |
+ |
* terminate (using {@link Thread#join(long)}), else interrupts |
820 |
+ |
* the thread (in the hope that it may terminate later) and fails. |
821 |
+ |
*/ |
822 |
+ |
void awaitTermination(Thread t) { |
823 |
+ |
awaitTermination(t, LONG_DELAY_MS); |
824 |
+ |
} |
825 |
+ |
|
826 |
|
// Some convenient Runnable classes |
827 |
|
|
828 |
< |
abstract class CheckedRunnable implements Runnable { |
829 |
< |
abstract void realRun() throws Throwable; |
828 |
> |
public abstract class CheckedRunnable implements Runnable { |
829 |
> |
protected abstract void realRun() throws Throwable; |
830 |
|
|
831 |
|
public final void run() { |
832 |
|
try { |
837 |
|
} |
838 |
|
} |
839 |
|
|
840 |
< |
abstract class CheckedInterruptedRunnable implements Runnable { |
841 |
< |
abstract void realRun() throws Throwable; |
840 |
> |
public abstract class RunnableShouldThrow implements Runnable { |
841 |
> |
protected abstract void realRun() throws Throwable; |
842 |
> |
|
843 |
> |
final Class<?> exceptionClass; |
844 |
> |
|
845 |
> |
<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) { |
846 |
> |
this.exceptionClass = exceptionClass; |
847 |
> |
} |
848 |
|
|
849 |
|
public final void run() { |
850 |
|
try { |
851 |
|
realRun(); |
852 |
< |
threadShouldThrow(); |
852 |
> |
threadShouldThrow(exceptionClass.getSimpleName()); |
853 |
> |
} catch (Throwable t) { |
854 |
> |
if (! exceptionClass.isInstance(t)) |
855 |
> |
threadUnexpectedException(t); |
856 |
> |
} |
857 |
> |
} |
858 |
> |
} |
859 |
> |
|
860 |
> |
public abstract class ThreadShouldThrow extends Thread { |
861 |
> |
protected abstract void realRun() throws Throwable; |
862 |
> |
|
863 |
> |
final Class<?> exceptionClass; |
864 |
> |
|
865 |
> |
<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) { |
866 |
> |
this.exceptionClass = exceptionClass; |
867 |
> |
} |
868 |
> |
|
869 |
> |
public final void run() { |
870 |
> |
try { |
871 |
> |
realRun(); |
872 |
> |
threadShouldThrow(exceptionClass.getSimpleName()); |
873 |
> |
} catch (Throwable t) { |
874 |
> |
if (! exceptionClass.isInstance(t)) |
875 |
> |
threadUnexpectedException(t); |
876 |
> |
} |
877 |
> |
} |
878 |
> |
} |
879 |
> |
|
880 |
> |
public abstract class CheckedInterruptedRunnable implements Runnable { |
881 |
> |
protected abstract void realRun() throws Throwable; |
882 |
> |
|
883 |
> |
public final void run() { |
884 |
> |
try { |
885 |
> |
realRun(); |
886 |
> |
threadShouldThrow("InterruptedException"); |
887 |
|
} catch (InterruptedException success) { |
888 |
+ |
threadAssertFalse(Thread.interrupted()); |
889 |
|
} catch (Throwable t) { |
890 |
|
threadUnexpectedException(t); |
891 |
|
} |
892 |
|
} |
893 |
|
} |
894 |
|
|
895 |
< |
abstract class CheckedCallable<T> implements Callable<T> { |
896 |
< |
abstract T realCall() throws Throwable; |
895 |
> |
public abstract class CheckedCallable<T> implements Callable<T> { |
896 |
> |
protected abstract T realCall() throws Throwable; |
897 |
|
|
898 |
|
public final T call() { |
899 |
|
try { |
905 |
|
} |
906 |
|
} |
907 |
|
|
908 |
< |
static class NoOpRunnable implements Runnable { |
908 |
> |
public abstract class CheckedInterruptedCallable<T> |
909 |
> |
implements Callable<T> { |
910 |
> |
protected abstract T realCall() throws Throwable; |
911 |
> |
|
912 |
> |
public final T call() { |
913 |
> |
try { |
914 |
> |
T result = realCall(); |
915 |
> |
threadShouldThrow("InterruptedException"); |
916 |
> |
return result; |
917 |
> |
} catch (InterruptedException success) { |
918 |
> |
threadAssertFalse(Thread.interrupted()); |
919 |
> |
} catch (Throwable t) { |
920 |
> |
threadUnexpectedException(t); |
921 |
> |
} |
922 |
> |
return null; |
923 |
> |
} |
924 |
> |
} |
925 |
> |
|
926 |
> |
public static class NoOpRunnable implements Runnable { |
927 |
|
public void run() {} |
928 |
|
} |
929 |
|
|
930 |
< |
static class NoOpCallable implements Callable { |
930 |
> |
public static class NoOpCallable implements Callable { |
931 |
|
public Object call() { return Boolean.TRUE; } |
932 |
|
} |
933 |
|
|
934 |
< |
static final String TEST_STRING = "a test string"; |
934 |
> |
public static final String TEST_STRING = "a test string"; |
935 |
|
|
936 |
< |
static class StringTask implements Callable<String> { |
936 |
> |
public static class StringTask implements Callable<String> { |
937 |
|
public String call() { return TEST_STRING; } |
938 |
|
} |
939 |
|
|
940 |
< |
static class NPETask implements Callable<String> { |
940 |
> |
public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) { |
941 |
> |
return new CheckedCallable<String>() { |
942 |
> |
protected String realCall() { |
943 |
> |
try { |
944 |
> |
latch.await(); |
945 |
> |
} catch (InterruptedException quittingTime) {} |
946 |
> |
return TEST_STRING; |
947 |
> |
}}; |
948 |
> |
} |
949 |
> |
|
950 |
> |
public Runnable awaiter(final CountDownLatch latch) { |
951 |
> |
return new CheckedRunnable() { |
952 |
> |
public void realRun() throws InterruptedException { |
953 |
> |
await(latch); |
954 |
> |
}}; |
955 |
> |
} |
956 |
> |
|
957 |
> |
public void await(CountDownLatch latch) { |
958 |
> |
try { |
959 |
> |
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |
960 |
> |
} catch (Throwable t) { |
961 |
> |
threadUnexpectedException(t); |
962 |
> |
} |
963 |
> |
} |
964 |
> |
|
965 |
> |
public void await(Semaphore semaphore) { |
966 |
> |
try { |
967 |
> |
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)); |
968 |
> |
} catch (Throwable t) { |
969 |
> |
threadUnexpectedException(t); |
970 |
> |
} |
971 |
> |
} |
972 |
> |
|
973 |
> |
// /** |
974 |
> |
// * Spin-waits up to LONG_DELAY_MS until flag becomes true. |
975 |
> |
// */ |
976 |
> |
// public void await(AtomicBoolean flag) { |
977 |
> |
// await(flag, LONG_DELAY_MS); |
978 |
> |
// } |
979 |
> |
|
980 |
> |
// /** |
981 |
> |
// * Spin-waits up to the specified timeout until flag becomes true. |
982 |
> |
// */ |
983 |
> |
// public void await(AtomicBoolean flag, long timeoutMillis) { |
984 |
> |
// long startTime = System.nanoTime(); |
985 |
> |
// while (!flag.get()) { |
986 |
> |
// if (millisElapsedSince(startTime) > timeoutMillis) |
987 |
> |
// throw new AssertionFailedError("timed out"); |
988 |
> |
// Thread.yield(); |
989 |
> |
// } |
990 |
> |
// } |
991 |
> |
|
992 |
> |
public static class NPETask implements Callable<String> { |
993 |
|
public String call() { throw new NullPointerException(); } |
994 |
|
} |
995 |
|
|
996 |
< |
static class CallableOne implements Callable<Integer> { |
996 |
> |
public static class CallableOne implements Callable<Integer> { |
997 |
|
public Integer call() { return one; } |
998 |
|
} |
999 |
|
|
1000 |
< |
class ShortRunnable extends CheckedRunnable { |
1001 |
< |
void realRun() throws Throwable { |
1002 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1000 |
> |
public class ShortRunnable extends CheckedRunnable { |
1001 |
> |
protected void realRun() throws Throwable { |
1002 |
> |
delay(SHORT_DELAY_MS); |
1003 |
|
} |
1004 |
|
} |
1005 |
|
|
1006 |
< |
class ShortInterruptedRunnable extends CheckedInterruptedRunnable { |
1007 |
< |
void realRun() throws InterruptedException { |
1008 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1006 |
> |
public class ShortInterruptedRunnable extends CheckedInterruptedRunnable { |
1007 |
> |
protected void realRun() throws InterruptedException { |
1008 |
> |
delay(SHORT_DELAY_MS); |
1009 |
|
} |
1010 |
|
} |
1011 |
|
|
1012 |
< |
class SmallRunnable extends CheckedRunnable { |
1013 |
< |
void realRun() throws Throwable { |
1014 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1012 |
> |
public class SmallRunnable extends CheckedRunnable { |
1013 |
> |
protected void realRun() throws Throwable { |
1014 |
> |
delay(SMALL_DELAY_MS); |
1015 |
|
} |
1016 |
|
} |
1017 |
|
|
1018 |
< |
class SmallPossiblyInterruptedRunnable extends CheckedRunnable { |
1019 |
< |
void realRun() { |
1018 |
> |
public class SmallPossiblyInterruptedRunnable extends CheckedRunnable { |
1019 |
> |
protected void realRun() { |
1020 |
|
try { |
1021 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1022 |
< |
} |
504 |
< |
catch (InterruptedException ok) { |
505 |
< |
} |
1021 |
> |
delay(SMALL_DELAY_MS); |
1022 |
> |
} catch (InterruptedException ok) {} |
1023 |
|
} |
1024 |
|
} |
1025 |
|
|
1026 |
< |
class SmallCallable extends CheckedCallable { |
1027 |
< |
Object realCall() throws Throwable { |
1028 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1026 |
> |
public class SmallCallable extends CheckedCallable { |
1027 |
> |
protected Object realCall() throws InterruptedException { |
1028 |
> |
delay(SMALL_DELAY_MS); |
1029 |
|
return Boolean.TRUE; |
1030 |
|
} |
1031 |
|
} |
1032 |
|
|
1033 |
< |
class SmallInterruptedRunnable extends CheckedInterruptedRunnable { |
1034 |
< |
void realRun() throws InterruptedException { |
1035 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1033 |
> |
public class MediumRunnable extends CheckedRunnable { |
1034 |
> |
protected void realRun() throws Throwable { |
1035 |
> |
delay(MEDIUM_DELAY_MS); |
1036 |
|
} |
1037 |
|
} |
1038 |
|
|
1039 |
< |
class MediumRunnable extends CheckedRunnable { |
1040 |
< |
void realRun() throws Throwable { |
1041 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1039 |
> |
public class MediumInterruptedRunnable extends CheckedInterruptedRunnable { |
1040 |
> |
protected void realRun() throws InterruptedException { |
1041 |
> |
delay(MEDIUM_DELAY_MS); |
1042 |
|
} |
1043 |
|
} |
1044 |
|
|
1045 |
< |
class MediumInterruptedRunnable extends CheckedInterruptedRunnable { |
1046 |
< |
void realRun() throws InterruptedException { |
1047 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1048 |
< |
} |
1045 |
> |
public Runnable possiblyInterruptedRunnable(final long timeoutMillis) { |
1046 |
> |
return new CheckedRunnable() { |
1047 |
> |
protected void realRun() { |
1048 |
> |
try { |
1049 |
> |
delay(timeoutMillis); |
1050 |
> |
} catch (InterruptedException ok) {} |
1051 |
> |
}}; |
1052 |
|
} |
1053 |
|
|
1054 |
< |
class MediumPossiblyInterruptedRunnable extends CheckedRunnable { |
1055 |
< |
void realRun() { |
1054 |
> |
public class MediumPossiblyInterruptedRunnable extends CheckedRunnable { |
1055 |
> |
protected void realRun() { |
1056 |
|
try { |
1057 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1058 |
< |
} |
539 |
< |
catch (InterruptedException ok) { |
540 |
< |
} |
1057 |
> |
delay(MEDIUM_DELAY_MS); |
1058 |
> |
} catch (InterruptedException ok) {} |
1059 |
|
} |
1060 |
|
} |
1061 |
|
|
1062 |
< |
class LongPossiblyInterruptedRunnable extends CheckedRunnable { |
1063 |
< |
void realRun() { |
1062 |
> |
public class LongPossiblyInterruptedRunnable extends CheckedRunnable { |
1063 |
> |
protected void realRun() { |
1064 |
|
try { |
1065 |
< |
Thread.sleep(LONG_DELAY_MS); |
1066 |
< |
} |
549 |
< |
catch (InterruptedException ok) { |
550 |
< |
} |
1065 |
> |
delay(LONG_DELAY_MS); |
1066 |
> |
} catch (InterruptedException ok) {} |
1067 |
|
} |
1068 |
|
} |
1069 |
|
|
1070 |
|
/** |
1071 |
|
* For use as ThreadFactory in constructors |
1072 |
|
*/ |
1073 |
< |
static class SimpleThreadFactory implements ThreadFactory { |
1073 |
> |
public static class SimpleThreadFactory implements ThreadFactory { |
1074 |
|
public Thread newThread(Runnable r) { |
1075 |
|
return new Thread(r); |
1076 |
|
} |
1077 |
|
} |
1078 |
|
|
1079 |
< |
static class TrackedShortRunnable implements Runnable { |
1080 |
< |
volatile boolean done = false; |
1079 |
> |
public interface TrackedRunnable extends Runnable { |
1080 |
> |
boolean isDone(); |
1081 |
> |
} |
1082 |
> |
|
1083 |
> |
public static TrackedRunnable trackedRunnable(final long timeoutMillis) { |
1084 |
> |
return new TrackedRunnable() { |
1085 |
> |
private volatile boolean done = false; |
1086 |
> |
public boolean isDone() { return done; } |
1087 |
> |
public void run() { |
1088 |
> |
try { |
1089 |
> |
delay(timeoutMillis); |
1090 |
> |
done = true; |
1091 |
> |
} catch (InterruptedException ok) {} |
1092 |
> |
} |
1093 |
> |
}; |
1094 |
> |
} |
1095 |
> |
|
1096 |
> |
public static class TrackedShortRunnable implements Runnable { |
1097 |
> |
public volatile boolean done = false; |
1098 |
|
public void run() { |
1099 |
|
try { |
1100 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1100 |
> |
delay(SHORT_DELAY_MS); |
1101 |
|
done = true; |
1102 |
< |
} catch (Exception e) { |
570 |
< |
} |
1102 |
> |
} catch (InterruptedException ok) {} |
1103 |
|
} |
1104 |
|
} |
1105 |
|
|
1106 |
< |
static class TrackedMediumRunnable implements Runnable { |
1107 |
< |
volatile boolean done = false; |
1106 |
> |
public static class TrackedSmallRunnable implements Runnable { |
1107 |
> |
public volatile boolean done = false; |
1108 |
|
public void run() { |
1109 |
|
try { |
1110 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1110 |
> |
delay(SMALL_DELAY_MS); |
1111 |
|
done = true; |
1112 |
< |
} catch (Exception e) { |
581 |
< |
} |
1112 |
> |
} catch (InterruptedException ok) {} |
1113 |
|
} |
1114 |
|
} |
1115 |
|
|
1116 |
< |
static class TrackedLongRunnable implements Runnable { |
1117 |
< |
volatile boolean done = false; |
1116 |
> |
public static class TrackedMediumRunnable implements Runnable { |
1117 |
> |
public volatile boolean done = false; |
1118 |
|
public void run() { |
1119 |
|
try { |
1120 |
< |
Thread.sleep(LONG_DELAY_MS); |
1120 |
> |
delay(MEDIUM_DELAY_MS); |
1121 |
|
done = true; |
1122 |
< |
} catch (Exception e) { |
592 |
< |
} |
1122 |
> |
} catch (InterruptedException ok) {} |
1123 |
|
} |
1124 |
|
} |
1125 |
|
|
1126 |
< |
static class TrackedNoOpRunnable implements Runnable { |
1127 |
< |
volatile boolean done = false; |
1126 |
> |
public static class TrackedLongRunnable implements Runnable { |
1127 |
> |
public volatile boolean done = false; |
1128 |
> |
public void run() { |
1129 |
> |
try { |
1130 |
> |
delay(LONG_DELAY_MS); |
1131 |
> |
done = true; |
1132 |
> |
} catch (InterruptedException ok) {} |
1133 |
> |
} |
1134 |
> |
} |
1135 |
> |
|
1136 |
> |
public static class TrackedNoOpRunnable implements Runnable { |
1137 |
> |
public volatile boolean done = false; |
1138 |
|
public void run() { |
1139 |
|
done = true; |
1140 |
|
} |
1141 |
|
} |
1142 |
|
|
1143 |
< |
static class TrackedCallable implements Callable { |
1144 |
< |
volatile boolean done = false; |
1143 |
> |
public static class TrackedCallable implements Callable { |
1144 |
> |
public volatile boolean done = false; |
1145 |
|
public Object call() { |
1146 |
|
try { |
1147 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1147 |
> |
delay(SMALL_DELAY_MS); |
1148 |
|
done = true; |
1149 |
< |
} catch (Exception e) { |
610 |
< |
} |
1149 |
> |
} catch (InterruptedException ok) {} |
1150 |
|
return Boolean.TRUE; |
1151 |
|
} |
1152 |
|
} |
1153 |
|
|
1154 |
+ |
/** |
1155 |
+ |
* Analog of CheckedRunnable for RecursiveAction |
1156 |
+ |
*/ |
1157 |
+ |
public abstract class CheckedRecursiveAction extends RecursiveAction { |
1158 |
+ |
protected abstract void realCompute() throws Throwable; |
1159 |
+ |
|
1160 |
+ |
public final void compute() { |
1161 |
+ |
try { |
1162 |
+ |
realCompute(); |
1163 |
+ |
} catch (Throwable t) { |
1164 |
+ |
threadUnexpectedException(t); |
1165 |
+ |
} |
1166 |
+ |
} |
1167 |
+ |
} |
1168 |
+ |
|
1169 |
+ |
/** |
1170 |
+ |
* Analog of CheckedCallable for RecursiveTask |
1171 |
+ |
*/ |
1172 |
+ |
public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> { |
1173 |
+ |
protected abstract T realCompute() throws Throwable; |
1174 |
+ |
|
1175 |
+ |
public final T compute() { |
1176 |
+ |
try { |
1177 |
+ |
return realCompute(); |
1178 |
+ |
} catch (Throwable t) { |
1179 |
+ |
threadUnexpectedException(t); |
1180 |
+ |
return null; |
1181 |
+ |
} |
1182 |
+ |
} |
1183 |
+ |
} |
1184 |
|
|
1185 |
|
/** |
1186 |
|
* For use as RejectedExecutionHandler in constructors |
1187 |
|
*/ |
1188 |
< |
static class NoOpREHandler implements RejectedExecutionHandler { |
1188 |
> |
public static class NoOpREHandler implements RejectedExecutionHandler { |
1189 |
|
public void rejectedExecution(Runnable r, |
1190 |
|
ThreadPoolExecutor executor) {} |
1191 |
|
} |
1192 |
|
|
1193 |
+ |
/** |
1194 |
+ |
* A CyclicBarrier that uses timed await and fails with |
1195 |
+ |
* AssertionFailedErrors instead of throwing checked exceptions. |
1196 |
+ |
*/ |
1197 |
+ |
public class CheckedBarrier extends CyclicBarrier { |
1198 |
+ |
public CheckedBarrier(int parties) { super(parties); } |
1199 |
+ |
|
1200 |
+ |
public int await() { |
1201 |
+ |
try { |
1202 |
+ |
return super.await(2 * LONG_DELAY_MS, MILLISECONDS); |
1203 |
+ |
} catch (TimeoutException e) { |
1204 |
+ |
throw new AssertionFailedError("timed out"); |
1205 |
+ |
} catch (Exception e) { |
1206 |
+ |
AssertionFailedError afe = |
1207 |
+ |
new AssertionFailedError("Unexpected exception: " + e); |
1208 |
+ |
afe.initCause(e); |
1209 |
+ |
throw afe; |
1210 |
+ |
} |
1211 |
+ |
} |
1212 |
+ |
} |
1213 |
+ |
|
1214 |
+ |
void checkEmpty(BlockingQueue q) { |
1215 |
+ |
try { |
1216 |
+ |
assertTrue(q.isEmpty()); |
1217 |
+ |
assertEquals(0, q.size()); |
1218 |
+ |
assertNull(q.peek()); |
1219 |
+ |
assertNull(q.poll()); |
1220 |
+ |
assertNull(q.poll(0, MILLISECONDS)); |
1221 |
+ |
assertEquals(q.toString(), "[]"); |
1222 |
+ |
assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
1223 |
+ |
assertFalse(q.iterator().hasNext()); |
1224 |
+ |
try { |
1225 |
+ |
q.element(); |
1226 |
+ |
shouldThrow(); |
1227 |
+ |
} catch (NoSuchElementException success) {} |
1228 |
+ |
try { |
1229 |
+ |
q.iterator().next(); |
1230 |
+ |
shouldThrow(); |
1231 |
+ |
} catch (NoSuchElementException success) {} |
1232 |
+ |
try { |
1233 |
+ |
q.remove(); |
1234 |
+ |
shouldThrow(); |
1235 |
+ |
} catch (NoSuchElementException success) {} |
1236 |
+ |
} catch (InterruptedException ie) { |
1237 |
+ |
threadUnexpectedException(ie); |
1238 |
+ |
} |
1239 |
+ |
} |
1240 |
+ |
|
1241 |
+ |
void assertSerialEquals(Object x, Object y) { |
1242 |
+ |
assertTrue(Arrays.equals(serialBytes(x), serialBytes(y))); |
1243 |
+ |
} |
1244 |
+ |
|
1245 |
+ |
void assertNotSerialEquals(Object x, Object y) { |
1246 |
+ |
assertFalse(Arrays.equals(serialBytes(x), serialBytes(y))); |
1247 |
+ |
} |
1248 |
+ |
|
1249 |
+ |
byte[] serialBytes(Object o) { |
1250 |
+ |
try { |
1251 |
+ |
ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
1252 |
+ |
ObjectOutputStream oos = new ObjectOutputStream(bos); |
1253 |
+ |
oos.writeObject(o); |
1254 |
+ |
oos.flush(); |
1255 |
+ |
oos.close(); |
1256 |
+ |
return bos.toByteArray(); |
1257 |
+ |
} catch (Throwable t) { |
1258 |
+ |
threadUnexpectedException(t); |
1259 |
+ |
return new byte[0]; |
1260 |
+ |
} |
1261 |
+ |
} |
1262 |
+ |
|
1263 |
+ |
@SuppressWarnings("unchecked") |
1264 |
+ |
<T> T serialClone(T o) { |
1265 |
+ |
try { |
1266 |
+ |
ObjectInputStream ois = new ObjectInputStream |
1267 |
+ |
(new ByteArrayInputStream(serialBytes(o))); |
1268 |
+ |
T clone = (T) ois.readObject(); |
1269 |
+ |
assertSame(o.getClass(), clone.getClass()); |
1270 |
+ |
return clone; |
1271 |
+ |
} catch (Throwable t) { |
1272 |
+ |
threadUnexpectedException(t); |
1273 |
+ |
return null; |
1274 |
+ |
} |
1275 |
+ |
} |
1276 |
|
} |