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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.45 by jsr166, Thu Nov 26 15:42:15 2009 UTC vs.
Revision 1.112 by jsr166, Fri Aug 16 07:07:01 2013 UTC

# Line 1 | Line 1
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.lang.management.ManagementFactory;
15 > import java.lang.management.ThreadInfo;
16 > import java.lang.reflect.Method;
17 > import java.util.ArrayList;
18 > import java.util.Arrays;
19 > import java.util.Date;
20 > import java.util.Enumeration;
21 > import java.util.List;
22 > import java.util.NoSuchElementException;
23 > import java.util.PropertyPermission;
24   import java.util.concurrent.*;
25 + import java.util.concurrent.atomic.AtomicBoolean;
26 + import java.util.concurrent.atomic.AtomicReference;
27   import static java.util.concurrent.TimeUnit.MILLISECONDS;
28 < import java.io.*;
29 < import java.security.*;
28 > import static java.util.concurrent.TimeUnit.NANOSECONDS;
29 > import java.security.CodeSource;
30 > import java.security.Permission;
31 > import java.security.PermissionCollection;
32 > import java.security.Permissions;
33 > import java.security.Policy;
34 > import java.security.ProtectionDomain;
35 > import java.security.SecurityPermission;
36  
37   /**
38   * Base class for JSR166 Junit TCK tests.  Defines some constants,
# Line 26 | Line 47 | import java.security.*;
47   * <li> All assertions in code running in generated threads must use
48   * the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
49   * #threadAssertEquals}, or {@link #threadAssertNull}, (not
50 < * <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
50 > * {@code fail}, {@code assertTrue}, etc.) It is OK (but not
51   * particularly recommended) for other code to use these forms too.
52   * Only the most typically used JUnit assertion methods are defined
53   * this way, but enough to live with.</li>
54   *
55   * <li> If you override {@link #setUp} or {@link #tearDown}, make sure
56 < * to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
56 > * to invoke {@code super.setUp} and {@code super.tearDown} within
57   * them. These methods are used to clear and check for thread
58   * assertion failures.</li>
59   *
60 < * <li>All delays and timeouts must use one of the constants <tt>
61 < * SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
62 < * <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
60 > * <li>All delays and timeouts must use one of the constants {@code
61 > * SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
62 > * {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
63   * discriminable from zero time, and always allows enough time for the
64   * small amounts of computation (creating a thread, calling a few
65   * methods, etc) needed to reach a timeout point. Similarly, a SMALL
# Line 48 | Line 69 | import java.security.*;
69   * in one spot to rerun tests on slower platforms.</li>
70   *
71   * <li> All threads generated must be joined inside each test case
72 < * method (or <tt>fail</tt> to do so) before returning from the
73 < * method. The <tt> joinPool</tt> method can be used to do this when
72 > * method (or {@code fail} to do so) before returning from the
73 > * method. The {@code joinPool} method can be used to do this when
74   * using Executors.</li>
75   *
76   * </ol>
77   *
78 < * <p> <b>Other notes</b>
78 > * <p><b>Other notes</b>
79   * <ul>
80   *
81   * <li> Usually, there is one testcase method per JSR166 method
# Line 81 | Line 102 | import java.security.*;
102   * any particular package to simplify things for people integrating
103   * them in TCK test suites.</li>
104   *
105 < * <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
105 > * <li> As a convenience, the {@code main} of this class (JSR166TestCase)
106   * runs all JSR166 unit tests.</li>
107   *
108   * </ul>
109   */
110   public class JSR166TestCase extends TestCase {
111 +    private static final boolean useSecurityManager =
112 +        Boolean.getBoolean("jsr166.useSecurityManager");
113 +
114 +    protected static final boolean expensiveTests =
115 +        Boolean.getBoolean("jsr166.expensiveTests");
116 +
117 +    /**
118 +     * If true, report on stdout all "slow" tests, that is, ones that
119 +     * take more than profileThreshold milliseconds to execute.
120 +     */
121 +    private static final boolean profileTests =
122 +        Boolean.getBoolean("jsr166.profileTests");
123 +
124 +    /**
125 +     * The number of milliseconds that tests are permitted for
126 +     * execution without being reported, when profileTests is set.
127 +     */
128 +    private static final long profileThreshold =
129 +        Long.getLong("jsr166.profileThreshold", 100);
130 +
131 +    /**
132 +     * The number of repetitions per test (for tickling rare bugs).
133 +     */
134 +    private static final int runsPerTest =
135 +        Integer.getInteger("jsr166.runsPerTest", 1);
136 +
137 +    protected void runTest() throws Throwable {
138 +        for (int i = 0; i < runsPerTest; i++) {
139 +            if (profileTests)
140 +                runTestProfiled();
141 +            else
142 +                super.runTest();
143 +        }
144 +    }
145 +
146 +    protected void runTestProfiled() throws Throwable {
147 +        long t0 = System.nanoTime();
148 +        try {
149 +            super.runTest();
150 +        } finally {
151 +            long elapsedMillis =
152 +                (System.nanoTime() - t0) / (1000L * 1000L);
153 +            if (elapsedMillis >= profileThreshold)
154 +                System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
155 +        }
156 +    }
157 +
158      /**
159 <     * Runs all JSR166 unit tests using junit.textui.TestRunner
159 >     * Runs all JSR166 unit tests using junit.textui.TestRunner.
160 >     * Optional command line arg provides the number of iterations to
161 >     * repeat running the tests.
162       */
163      public static void main(String[] args) {
164 <        int iters = 1;
165 <        if (args.length > 0)
166 <            iters = Integer.parseInt(args[0]);
164 >        if (useSecurityManager) {
165 >            System.err.println("Setting a permissive security manager");
166 >            Policy.setPolicy(permissivePolicy());
167 >            System.setSecurityManager(new SecurityManager());
168 >        }
169 >        int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
170 >
171          Test s = suite();
172          for (int i = 0; i < iters; ++i) {
173              junit.textui.TestRunner.run(s);
# Line 103 | Line 177 | public class JSR166TestCase extends Test
177          System.exit(0);
178      }
179  
180 +    public static TestSuite newTestSuite(Object... suiteOrClasses) {
181 +        TestSuite suite = new TestSuite();
182 +        for (Object suiteOrClass : suiteOrClasses) {
183 +            if (suiteOrClass instanceof TestSuite)
184 +                suite.addTest((TestSuite) suiteOrClass);
185 +            else if (suiteOrClass instanceof Class)
186 +                suite.addTest(new TestSuite((Class<?>) suiteOrClass));
187 +            else
188 +                throw new ClassCastException("not a test suite or class");
189 +        }
190 +        return suite;
191 +    }
192 +
193 +    public static void addNamedTestClasses(TestSuite suite,
194 +                                           String... testClassNames) {
195 +        for (String testClassName : testClassNames) {
196 +            try {
197 +                Class<?> testClass = Class.forName(testClassName);
198 +                Method m = testClass.getDeclaredMethod("suite",
199 +                                                       new Class<?>[0]);
200 +                suite.addTest(newTestSuite((Test)m.invoke(null)));
201 +            } catch (Exception e) {
202 +                throw new Error("Missing test class", e);
203 +            }
204 +        }
205 +    }
206 +
207 +    public static final double JAVA_CLASS_VERSION;
208 +    static {
209 +        try {
210 +            JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
211 +                new java.security.PrivilegedAction<Double>() {
212 +                public Double run() {
213 +                    return Double.valueOf(System.getProperty("java.class.version"));}});
214 +        } catch (Throwable t) {
215 +            throw new Error(t);
216 +        }
217 +    }
218 +
219 +    public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
220 +    public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
221 +    public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
222 +
223      /**
224 <     * Collects all JSR166 unit tests as one suite
224 >     * Collects all JSR166 unit tests as one suite.
225       */
226      public static Test suite() {
227 <        TestSuite suite = new TestSuite("JSR166 Unit Tests");
228 <
229 <        suite.addTest(new TestSuite(ForkJoinPoolTest.class));
230 <        suite.addTest(new TestSuite(ForkJoinTaskTest.class));
231 <        suite.addTest(new TestSuite(RecursiveActionTest.class));
232 <        suite.addTest(new TestSuite(RecursiveTaskTest.class));
233 <        suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
234 <        suite.addTest(new TestSuite(PhaserTest.class));
235 <        suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
236 <        suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
237 <        suite.addTest(new TestSuite(AbstractQueueTest.class));
238 <        suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
239 <        suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
240 <        suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
241 <        suite.addTest(new TestSuite(ArrayDequeTest.class));
242 <        suite.addTest(new TestSuite(AtomicBooleanTest.class));
243 <        suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
244 <        suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
245 <        suite.addTest(new TestSuite(AtomicIntegerTest.class));
246 <        suite.addTest(new TestSuite(AtomicLongArrayTest.class));
247 <        suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
248 <        suite.addTest(new TestSuite(AtomicLongTest.class));
249 <        suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
250 <        suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
251 <        suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
252 <        suite.addTest(new TestSuite(AtomicReferenceTest.class));
253 <        suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
254 <        suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
255 <        suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
256 <        suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
257 <        suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
258 <        suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
259 <        suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
260 <        suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
261 <        suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
262 <        suite.addTest(new TestSuite(CountDownLatchTest.class));
263 <        suite.addTest(new TestSuite(CyclicBarrierTest.class));
264 <        suite.addTest(new TestSuite(DelayQueueTest.class));
265 <        suite.addTest(new TestSuite(EntryTest.class));
266 <        suite.addTest(new TestSuite(ExchangerTest.class));
267 <        suite.addTest(new TestSuite(ExecutorsTest.class));
268 <        suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
269 <        suite.addTest(new TestSuite(FutureTaskTest.class));
270 <        suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
271 <        suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
272 <        suite.addTest(new TestSuite(LinkedListTest.class));
273 <        suite.addTest(new TestSuite(LockSupportTest.class));
274 <        suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
275 <        suite.addTest(new TestSuite(PriorityQueueTest.class));
276 <        suite.addTest(new TestSuite(ReentrantLockTest.class));
277 <        suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
278 <        suite.addTest(new TestSuite(ScheduledExecutorTest.class));
279 <        suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
280 <        suite.addTest(new TestSuite(SemaphoreTest.class));
281 <        suite.addTest(new TestSuite(SynchronousQueueTest.class));
282 <        suite.addTest(new TestSuite(SystemTest.class));
283 <        suite.addTest(new TestSuite(ThreadLocalTest.class));
284 <        suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
285 <        suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
286 <        suite.addTest(new TestSuite(ThreadTest.class));
287 <        suite.addTest(new TestSuite(TimeUnitTest.class));
288 <        suite.addTest(new TestSuite(TreeMapTest.class));
289 <        suite.addTest(new TestSuite(TreeSetTest.class));
290 <        suite.addTest(new TestSuite(TreeSubMapTest.class));
291 <        suite.addTest(new TestSuite(TreeSubSetTest.class));
227 >        // Java7+ test classes
228 >        TestSuite suite = newTestSuite(
229 >            ForkJoinPoolTest.suite(),
230 >            ForkJoinTaskTest.suite(),
231 >            RecursiveActionTest.suite(),
232 >            RecursiveTaskTest.suite(),
233 >            LinkedTransferQueueTest.suite(),
234 >            PhaserTest.suite(),
235 >            ThreadLocalRandomTest.suite(),
236 >            AbstractExecutorServiceTest.suite(),
237 >            AbstractQueueTest.suite(),
238 >            AbstractQueuedSynchronizerTest.suite(),
239 >            AbstractQueuedLongSynchronizerTest.suite(),
240 >            ArrayBlockingQueueTest.suite(),
241 >            ArrayDequeTest.suite(),
242 >            AtomicBooleanTest.suite(),
243 >            AtomicIntegerArrayTest.suite(),
244 >            AtomicIntegerFieldUpdaterTest.suite(),
245 >            AtomicIntegerTest.suite(),
246 >            AtomicLongArrayTest.suite(),
247 >            AtomicLongFieldUpdaterTest.suite(),
248 >            AtomicLongTest.suite(),
249 >            AtomicMarkableReferenceTest.suite(),
250 >            AtomicReferenceArrayTest.suite(),
251 >            AtomicReferenceFieldUpdaterTest.suite(),
252 >            AtomicReferenceTest.suite(),
253 >            AtomicStampedReferenceTest.suite(),
254 >            ConcurrentHashMapTest.suite(),
255 >            ConcurrentLinkedDequeTest.suite(),
256 >            ConcurrentLinkedQueueTest.suite(),
257 >            ConcurrentSkipListMapTest.suite(),
258 >            ConcurrentSkipListSubMapTest.suite(),
259 >            ConcurrentSkipListSetTest.suite(),
260 >            ConcurrentSkipListSubSetTest.suite(),
261 >            CopyOnWriteArrayListTest.suite(),
262 >            CopyOnWriteArraySetTest.suite(),
263 >            CountDownLatchTest.suite(),
264 >            CyclicBarrierTest.suite(),
265 >            DelayQueueTest.suite(),
266 >            EntryTest.suite(),
267 >            ExchangerTest.suite(),
268 >            ExecutorsTest.suite(),
269 >            ExecutorCompletionServiceTest.suite(),
270 >            FutureTaskTest.suite(),
271 >            LinkedBlockingDequeTest.suite(),
272 >            LinkedBlockingQueueTest.suite(),
273 >            LinkedListTest.suite(),
274 >            LockSupportTest.suite(),
275 >            PriorityBlockingQueueTest.suite(),
276 >            PriorityQueueTest.suite(),
277 >            ReentrantLockTest.suite(),
278 >            ReentrantReadWriteLockTest.suite(),
279 >            ScheduledExecutorTest.suite(),
280 >            ScheduledExecutorSubclassTest.suite(),
281 >            SemaphoreTest.suite(),
282 >            SynchronousQueueTest.suite(),
283 >            SystemTest.suite(),
284 >            ThreadLocalTest.suite(),
285 >            ThreadPoolExecutorTest.suite(),
286 >            ThreadPoolExecutorSubclassTest.suite(),
287 >            ThreadTest.suite(),
288 >            TimeUnitTest.suite(),
289 >            TreeMapTest.suite(),
290 >            TreeSetTest.suite(),
291 >            TreeSubMapTest.suite(),
292 >            TreeSubSetTest.suite());
293 >
294 >        // Java8+ test classes
295 >        if (atLeastJava8()) {
296 >            String[] java8TestClassNames = {
297 >                "CompletableFutureTest",
298 >                "ConcurrentHashMap8Test",
299 >                "CountedCompleterTest",
300 >                "DoubleAccumulatorTest",
301 >                "DoubleAdderTest",
302 >                "ForkJoinPool8Test",
303 >                "ForkJoinTask8Test",
304 >                "LongAccumulatorTest",
305 >                "LongAdderTest",
306 >                "SplittableRandomTest",
307 >                "StampedLockTest",
308 >                "ThreadLocalRandom8Test",
309 >            };
310 >            addNamedTestClasses(suite, java8TestClassNames);
311 >        }
312  
313          return suite;
314      }
315  
316 +    // Delays for timing-dependent tests, in milliseconds.
317  
318      public static long SHORT_DELAY_MS;
319      public static long SMALL_DELAY_MS;
320      public static long MEDIUM_DELAY_MS;
321      public static long LONG_DELAY_MS;
322  
185
323      /**
324       * Returns the shortest timed delay. This could
325       * be reimplemented to use for example a Property.
# Line 191 | Line 328 | public class JSR166TestCase extends Test
328          return 50;
329      }
330  
194
331      /**
332       * Sets delays as multiples of SHORT_DELAY.
333       */
334      protected void setDelays() {
335          SHORT_DELAY_MS = getShortDelay();
336 <        SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
336 >        SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
337          MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
338 <        LONG_DELAY_MS = SHORT_DELAY_MS * 50;
338 >        LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
339 >    }
340 >
341 >    /**
342 >     * Returns a timeout in milliseconds to be used in tests that
343 >     * verify that operations block or time out.
344 >     */
345 >    long timeoutMillis() {
346 >        return SHORT_DELAY_MS / 4;
347 >    }
348 >
349 >    /**
350 >     * Returns a new Date instance representing a time delayMillis
351 >     * milliseconds in the future.
352 >     */
353 >    Date delayedDate(long delayMillis) {
354 >        return new Date(System.currentTimeMillis() + delayMillis);
355      }
356  
357      /**
358 <     * Flag set true if any threadAssert methods fail
358 >     * The first exception encountered if any threadAssertXXX method fails.
359       */
360 <    volatile boolean threadFailed;
360 >    private final AtomicReference<Throwable> threadFailure
361 >        = new AtomicReference<Throwable>(null);
362  
363      /**
364 <     * Initializes test to indicate that no thread assertions have failed
364 >     * Records an exception so that it can be rethrown later in the test
365 >     * harness thread, triggering a test case failure.  Only the first
366 >     * failure is recorded; subsequent calls to this method from within
367 >     * the same test have no effect.
368       */
369 +    public void threadRecordFailure(Throwable t) {
370 +        threadFailure.compareAndSet(null, t);
371 +    }
372 +
373      public void setUp() {
374          setDelays();
215        threadFailed = false;
375      }
376  
377      /**
378 <     * Triggers test case failure if any thread assertions have failed
378 >     * Extra checks that get done for all test cases.
379 >     *
380 >     * Triggers test case failure if any thread assertions have failed,
381 >     * by rethrowing, in the test harness thread, any exception recorded
382 >     * earlier by threadRecordFailure.
383 >     *
384 >     * Triggers test case failure if interrupt status is set in the main thread.
385 >     */
386 >    public void tearDown() throws Exception {
387 >        Throwable t = threadFailure.getAndSet(null);
388 >        if (t != null) {
389 >            if (t instanceof Error)
390 >                throw (Error) t;
391 >            else if (t instanceof RuntimeException)
392 >                throw (RuntimeException) t;
393 >            else if (t instanceof Exception)
394 >                throw (Exception) t;
395 >            else {
396 >                AssertionFailedError afe =
397 >                    new AssertionFailedError(t.toString());
398 >                afe.initCause(t);
399 >                throw afe;
400 >            }
401 >        }
402 >
403 >        if (Thread.interrupted())
404 >            throw new AssertionFailedError("interrupt status set in main thread");
405 >
406 >        checkForkJoinPoolThreadLeaks();
407 >    }
408 >
409 >    /**
410 >     * Find missing try { ... } finally { joinPool(e); }
411       */
412 <    public void tearDown() {
413 <        assertFalse(threadFailed);
412 >    void checkForkJoinPoolThreadLeaks() throws InterruptedException {
413 >        Thread[] survivors = new Thread[5];
414 >        int count = Thread.enumerate(survivors);
415 >        for (int i = 0; i < count; i++) {
416 >            Thread thread = survivors[i];
417 >            String name = thread.getName();
418 >            if (name.startsWith("ForkJoinPool-")) {
419 >                // give thread some time to terminate
420 >                thread.join(LONG_DELAY_MS);
421 >                if (!thread.isAlive()) continue;
422 >                thread.stop();
423 >                throw new AssertionFailedError
424 >                    (String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
425 >                                   toString(), name));
426 >            }
427 >        }
428      }
429  
430      /**
431 <     * Fail, also setting status to indicate current testcase should fail
431 >     * Just like fail(reason), but additionally recording (using
432 >     * threadRecordFailure) any AssertionFailedError thrown, so that
433 >     * the current testcase will fail.
434       */
435      public void threadFail(String reason) {
436 <        threadFailed = true;
437 <        fail(reason);
436 >        try {
437 >            fail(reason);
438 >        } catch (AssertionFailedError t) {
439 >            threadRecordFailure(t);
440 >            fail(reason);
441 >        }
442      }
443  
444      /**
445 <     * If expression not true, set status to indicate current testcase
446 <     * should fail
445 >     * Just like assertTrue(b), but additionally recording (using
446 >     * threadRecordFailure) any AssertionFailedError thrown, so that
447 >     * the current testcase will fail.
448       */
449      public void threadAssertTrue(boolean b) {
450 <        if (!b) {
239 <            threadFailed = true;
450 >        try {
451              assertTrue(b);
452 +        } catch (AssertionFailedError t) {
453 +            threadRecordFailure(t);
454 +            throw t;
455          }
456      }
457  
458      /**
459 <     * If expression not false, set status to indicate current testcase
460 <     * should fail
459 >     * Just like assertFalse(b), but additionally recording (using
460 >     * threadRecordFailure) any AssertionFailedError thrown, so that
461 >     * the current testcase will fail.
462       */
463      public void threadAssertFalse(boolean b) {
464 <        if (b) {
250 <            threadFailed = true;
464 >        try {
465              assertFalse(b);
466 +        } catch (AssertionFailedError t) {
467 +            threadRecordFailure(t);
468 +            throw t;
469          }
470      }
471  
472      /**
473 <     * If argument not null, set status to indicate current testcase
474 <     * should fail
473 >     * Just like assertNull(x), but additionally recording (using
474 >     * threadRecordFailure) any AssertionFailedError thrown, so that
475 >     * the current testcase will fail.
476       */
477      public void threadAssertNull(Object x) {
478 <        if (x != null) {
261 <            threadFailed = true;
478 >        try {
479              assertNull(x);
480 +        } catch (AssertionFailedError t) {
481 +            threadRecordFailure(t);
482 +            throw t;
483          }
484      }
485  
486      /**
487 <     * If arguments not equal, set status to indicate current testcase
488 <     * should fail
487 >     * Just like assertEquals(x, y), but additionally recording (using
488 >     * threadRecordFailure) any AssertionFailedError thrown, so that
489 >     * the current testcase will fail.
490       */
491      public void threadAssertEquals(long x, long y) {
492 <        if (x != y) {
272 <            threadFailed = true;
492 >        try {
493              assertEquals(x, y);
494 +        } catch (AssertionFailedError t) {
495 +            threadRecordFailure(t);
496 +            throw t;
497          }
498      }
499  
500      /**
501 <     * If arguments not equal, set status to indicate current testcase
502 <     * should fail
501 >     * Just like assertEquals(x, y), but additionally recording (using
502 >     * threadRecordFailure) any AssertionFailedError thrown, so that
503 >     * the current testcase will fail.
504       */
505      public void threadAssertEquals(Object x, Object y) {
506 <        if (x != y && (x == null || !x.equals(y))) {
283 <            threadFailed = true;
506 >        try {
507              assertEquals(x, y);
508 +        } catch (AssertionFailedError t) {
509 +            threadRecordFailure(t);
510 +            throw t;
511 +        } catch (Throwable t) {
512 +            threadUnexpectedException(t);
513          }
514      }
515  
516      /**
517 <     * threadFail with message "should throw exception"
517 >     * Just like assertSame(x, y), but additionally recording (using
518 >     * threadRecordFailure) any AssertionFailedError thrown, so that
519 >     * the current testcase will fail.
520 >     */
521 >    public void threadAssertSame(Object x, Object y) {
522 >        try {
523 >            assertSame(x, y);
524 >        } catch (AssertionFailedError t) {
525 >            threadRecordFailure(t);
526 >            throw t;
527 >        }
528 >    }
529 >
530 >    /**
531 >     * Calls threadFail with message "should throw exception".
532       */
533      public void threadShouldThrow() {
534 <        threadFailed = true;
293 <        fail("should throw exception");
534 >        threadFail("should throw exception");
535      }
536  
537      /**
538 <     * threadFail with message "should throw" + exceptionName
538 >     * Calls threadFail with message "should throw" + exceptionName.
539       */
540      public void threadShouldThrow(String exceptionName) {
541 <        threadFailed = true;
301 <        fail("should throw " + exceptionName);
541 >        threadFail("should throw " + exceptionName);
542      }
543  
544      /**
545 <     * threadFail with message "Unexpected exception"
545 >     * Records the given exception using {@link #threadRecordFailure},
546 >     * then rethrows the exception, wrapping it in an
547 >     * AssertionFailedError if necessary.
548       */
549 <    public void threadUnexpectedException() {
550 <        threadFailed = true;
551 <        fail("Unexpected exception");
549 >    public void threadUnexpectedException(Throwable t) {
550 >        threadRecordFailure(t);
551 >        t.printStackTrace();
552 >        if (t instanceof RuntimeException)
553 >            throw (RuntimeException) t;
554 >        else if (t instanceof Error)
555 >            throw (Error) t;
556 >        else {
557 >            AssertionFailedError afe =
558 >                new AssertionFailedError("unexpected exception: " + t);
559 >            afe.initCause(t);
560 >            throw afe;
561 >        }
562      }
563  
564      /**
565 <     * threadFail with message "Unexpected exception", with argument
565 >     * Delays, via Thread.sleep, for the given millisecond delay, but
566 >     * if the sleep is shorter than specified, may re-sleep or yield
567 >     * until time elapses.
568       */
569 <    public void threadUnexpectedException(Throwable ex) {
570 <        threadFailed = true;
571 <        ex.printStackTrace();
572 <        fail("Unexpected exception: " + ex);
569 >    static void delay(long millis) throws InterruptedException {
570 >        long startTime = System.nanoTime();
571 >        long ns = millis * 1000 * 1000;
572 >        for (;;) {
573 >            if (millis > 0L)
574 >                Thread.sleep(millis);
575 >            else // too short to sleep
576 >                Thread.yield();
577 >            long d = ns - (System.nanoTime() - startTime);
578 >            if (d > 0L)
579 >                millis = d / (1000 * 1000);
580 >            else
581 >                break;
582 >        }
583      }
584  
585      /**
586 <     * Wait out termination of a thread pool or fail doing so
586 >     * Waits out termination of a thread pool or fails doing so.
587       */
588 <    public void joinPool(ExecutorService exec) {
588 >    void joinPool(ExecutorService exec) {
589          try {
590              exec.shutdown();
591 <            assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
591 >            assertTrue("ExecutorService did not terminate in a timely manner",
592 >                       exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
593          } catch (SecurityException ok) {
594              // Allowed in case test doesn't have privs
595          } catch (InterruptedException ie) {
# Line 332 | Line 597 | public class JSR166TestCase extends Test
597          }
598      }
599  
600 +    /**
601 +     * A debugging tool to print all stack traces, as jstack does.
602 +     */
603 +    static void printAllStackTraces() {
604 +        for (ThreadInfo info :
605 +                 ManagementFactory.getThreadMXBean()
606 +                 .dumpAllThreads(true, true))
607 +            System.err.print(info);
608 +    }
609  
610      /**
611 <     * fail with message "should throw exception"
611 >     * Checks that thread does not terminate within the default
612 >     * millisecond delay of {@code timeoutMillis()}.
613       */
614 <    public void shouldThrow() {
615 <        fail("Should throw exception");
614 >    void assertThreadStaysAlive(Thread thread) {
615 >        assertThreadStaysAlive(thread, timeoutMillis());
616      }
617  
618      /**
619 <     * fail with message "should throw " + exceptionName
619 >     * Checks that thread does not terminate within the given millisecond delay.
620       */
621 <    public void shouldThrow(String exceptionName) {
622 <        fail("Should throw " + exceptionName);
621 >    void assertThreadStaysAlive(Thread thread, long millis) {
622 >        try {
623 >            // No need to optimize the failing case via Thread.join.
624 >            delay(millis);
625 >            assertTrue(thread.isAlive());
626 >        } catch (InterruptedException ie) {
627 >            fail("Unexpected InterruptedException");
628 >        }
629      }
630  
631      /**
632 <     * fail with message "Unexpected exception"
632 >     * Checks that the threads do not terminate within the default
633 >     * millisecond delay of {@code timeoutMillis()}.
634       */
635 <    public void unexpectedException() {
636 <        fail("Unexpected exception");
635 >    void assertThreadsStayAlive(Thread... threads) {
636 >        assertThreadsStayAlive(timeoutMillis(), threads);
637      }
638  
639      /**
640 <     * fail with message "Unexpected exception", with argument
640 >     * Checks that the threads do not terminate within the given millisecond delay.
641       */
642 <    public void unexpectedException(Throwable ex) {
643 <        ex.printStackTrace();
644 <        fail("Unexpected exception: " + ex);
642 >    void assertThreadsStayAlive(long millis, Thread... threads) {
643 >        try {
644 >            // No need to optimize the failing case via Thread.join.
645 >            delay(millis);
646 >            for (Thread thread : threads)
647 >                assertTrue(thread.isAlive());
648 >        } catch (InterruptedException ie) {
649 >            fail("Unexpected InterruptedException");
650 >        }
651      }
652  
653 +    /**
654 +     * Checks that future.get times out, with the default timeout of
655 +     * {@code timeoutMillis()}.
656 +     */
657 +    void assertFutureTimesOut(Future future) {
658 +        assertFutureTimesOut(future, timeoutMillis());
659 +    }
660 +
661 +    /**
662 +     * Checks that future.get times out, with the given millisecond timeout.
663 +     */
664 +    void assertFutureTimesOut(Future future, long timeoutMillis) {
665 +        long startTime = System.nanoTime();
666 +        try {
667 +            future.get(timeoutMillis, MILLISECONDS);
668 +            shouldThrow();
669 +        } catch (TimeoutException success) {
670 +        } catch (Exception e) {
671 +            threadUnexpectedException(e);
672 +        } finally { future.cancel(true); }
673 +        assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
674 +    }
675 +
676 +    /**
677 +     * Fails with message "should throw exception".
678 +     */
679 +    public void shouldThrow() {
680 +        fail("Should throw exception");
681 +    }
682 +
683 +    /**
684 +     * Fails with message "should throw " + exceptionName.
685 +     */
686 +    public void shouldThrow(String exceptionName) {
687 +        fail("Should throw " + exceptionName);
688 +    }
689  
690      /**
691       * The number of elements to place in collections, arrays, etc.
# Line 370 | Line 694 | public class JSR166TestCase extends Test
694  
695      // Some convenient Integer constants
696  
697 <    public static final Integer zero = new Integer(0);
698 <    public static final Integer one = new Integer(1);
699 <    public static final Integer two = new Integer(2);
700 <    public static final Integer three  = new Integer(3);
697 >    public static final Integer zero  = new Integer(0);
698 >    public static final Integer one   = new Integer(1);
699 >    public static final Integer two   = new Integer(2);
700 >    public static final Integer three = new Integer(3);
701      public static final Integer four  = new Integer(4);
702      public static final Integer five  = new Integer(5);
703 <    public static final Integer six = new Integer(6);
703 >    public static final Integer six   = new Integer(6);
704      public static final Integer seven = new Integer(7);
705      public static final Integer eight = new Integer(8);
706 <    public static final Integer nine = new Integer(9);
706 >    public static final Integer nine  = new Integer(9);
707      public static final Integer m1  = new Integer(-1);
708      public static final Integer m2  = new Integer(-2);
709      public static final Integer m3  = new Integer(-3);
710 <    public static final Integer m4 = new Integer(-4);
711 <    public static final Integer m5 = new Integer(-5);
712 <    public static final Integer m6 = new Integer(-6);
710 >    public static final Integer m4  = new Integer(-4);
711 >    public static final Integer m5  = new Integer(-5);
712 >    public static final Integer m6  = new Integer(-6);
713      public static final Integer m10 = new Integer(-10);
714  
715 +    /**
716 +     * Runs Runnable r with a security policy that permits precisely
717 +     * the specified permissions.  If there is no current security
718 +     * manager, the runnable is run twice, both with and without a
719 +     * security manager.  We require that any security manager permit
720 +     * getPolicy/setPolicy.
721 +     */
722 +    public void runWithPermissions(Runnable r, Permission... permissions) {
723 +        SecurityManager sm = System.getSecurityManager();
724 +        if (sm == null) {
725 +            r.run();
726 +        }
727 +        runWithSecurityManagerWithPermissions(r, permissions);
728 +    }
729 +
730 +    /**
731 +     * Runs Runnable r with a security policy that permits precisely
732 +     * the specified permissions.  If there is no current security
733 +     * manager, a temporary one is set for the duration of the
734 +     * Runnable.  We require that any security manager permit
735 +     * getPolicy/setPolicy.
736 +     */
737 +    public void runWithSecurityManagerWithPermissions(Runnable r,
738 +                                                      Permission... permissions) {
739 +        SecurityManager sm = System.getSecurityManager();
740 +        if (sm == null) {
741 +            Policy savedPolicy = Policy.getPolicy();
742 +            try {
743 +                Policy.setPolicy(permissivePolicy());
744 +                System.setSecurityManager(new SecurityManager());
745 +                runWithSecurityManagerWithPermissions(r, permissions);
746 +            } finally {
747 +                System.setSecurityManager(null);
748 +                Policy.setPolicy(savedPolicy);
749 +            }
750 +        } else {
751 +            Policy savedPolicy = Policy.getPolicy();
752 +            AdjustablePolicy policy = new AdjustablePolicy(permissions);
753 +            Policy.setPolicy(policy);
754 +
755 +            try {
756 +                r.run();
757 +            } finally {
758 +                policy.addPermission(new SecurityPermission("setPolicy"));
759 +                Policy.setPolicy(savedPolicy);
760 +            }
761 +        }
762 +    }
763 +
764 +    /**
765 +     * Runs a runnable without any permissions.
766 +     */
767 +    public void runWithoutPermissions(Runnable r) {
768 +        runWithPermissions(r);
769 +    }
770  
771      /**
772       * A security policy where new permissions can be dynamically added
# Line 395 | Line 774 | public class JSR166TestCase extends Test
774       */
775      public static class AdjustablePolicy extends java.security.Policy {
776          Permissions perms = new Permissions();
777 <        AdjustablePolicy() { }
777 >        AdjustablePolicy(Permission... permissions) {
778 >            for (Permission permission : permissions)
779 >                perms.add(permission);
780 >        }
781          void addPermission(Permission perm) { perms.add(perm); }
782          void clearPermissions() { perms = new Permissions(); }
783          public PermissionCollection getPermissions(CodeSource cs) {
# Line 408 | Line 790 | public class JSR166TestCase extends Test
790              return perms.implies(p);
791          }
792          public void refresh() {}
793 +        public String toString() {
794 +            List<Permission> ps = new ArrayList<Permission>();
795 +            for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
796 +                ps.add(e.nextElement());
797 +            return "AdjustablePolicy with permissions " + ps;
798 +        }
799      }
800  
801      /**
802 <     * Sleep until the timeout has elapsed, or interrupted.
415 <     * Does <em>NOT</em> throw InterruptedException.
802 >     * Returns a policy containing all the permissions we ever need.
803       */
804 <    void sleepTillInterrupted(long timeoutMillis) {
804 >    public static Policy permissivePolicy() {
805 >        return new AdjustablePolicy
806 >            // Permissions j.u.c. needs directly
807 >            (new RuntimePermission("modifyThread"),
808 >             new RuntimePermission("getClassLoader"),
809 >             new RuntimePermission("setContextClassLoader"),
810 >             // Permissions needed to change permissions!
811 >             new SecurityPermission("getPolicy"),
812 >             new SecurityPermission("setPolicy"),
813 >             new RuntimePermission("setSecurityManager"),
814 >             // Permissions needed by the junit test harness
815 >             new RuntimePermission("accessDeclaredMembers"),
816 >             new PropertyPermission("*", "read"),
817 >             new java.io.FilePermission("<<ALL FILES>>", "read"));
818 >    }
819 >
820 >    /**
821 >     * Sleeps until the given time has elapsed.
822 >     * Throws AssertionFailedError if interrupted.
823 >     */
824 >    void sleep(long millis) {
825          try {
826 <            Thread.sleep(timeoutMillis);
827 <        } catch (InterruptedException wakeup) {}
826 >            delay(millis);
827 >        } catch (InterruptedException ie) {
828 >            AssertionFailedError afe =
829 >                new AssertionFailedError("Unexpected InterruptedException");
830 >            afe.initCause(ie);
831 >            throw afe;
832 >        }
833 >    }
834 >
835 >    /**
836 >     * Spin-waits up to the specified number of milliseconds for the given
837 >     * thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
838 >     */
839 >    void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
840 >        long startTime = System.nanoTime();
841 >        for (;;) {
842 >            Thread.State s = thread.getState();
843 >            if (s == Thread.State.BLOCKED ||
844 >                s == Thread.State.WAITING ||
845 >                s == Thread.State.TIMED_WAITING)
846 >                return;
847 >            else if (s == Thread.State.TERMINATED)
848 >                fail("Unexpected thread termination");
849 >            else if (millisElapsedSince(startTime) > timeoutMillis) {
850 >                threadAssertTrue(thread.isAlive());
851 >                return;
852 >            }
853 >            Thread.yield();
854 >        }
855 >    }
856 >
857 >    /**
858 >     * Waits up to LONG_DELAY_MS for the given thread to enter a wait
859 >     * state: BLOCKED, WAITING, or TIMED_WAITING.
860 >     */
861 >    void waitForThreadToEnterWaitState(Thread thread) {
862 >        waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
863      }
864  
865      /**
866 <     * Returns a new started Thread running the given runnable.
866 >     * Returns the number of milliseconds since time given by
867 >     * startNanoTime, which must have been previously returned from a
868 >     * call to {@link System.nanoTime()}.
869 >     */
870 >    long millisElapsedSince(long startNanoTime) {
871 >        return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
872 >    }
873 >
874 >    /**
875 >     * Returns a new started daemon Thread running the given runnable.
876       */
877      Thread newStartedThread(Runnable runnable) {
878          Thread t = new Thread(runnable);
879 +        t.setDaemon(true);
880          t.start();
881          return t;
882      }
883  
884 +    /**
885 +     * Waits for the specified time (in milliseconds) for the thread
886 +     * to terminate (using {@link Thread#join(long)}), else interrupts
887 +     * the thread (in the hope that it may terminate later) and fails.
888 +     */
889 +    void awaitTermination(Thread t, long timeoutMillis) {
890 +        try {
891 +            t.join(timeoutMillis);
892 +        } catch (InterruptedException ie) {
893 +            threadUnexpectedException(ie);
894 +        } finally {
895 +            if (t.getState() != Thread.State.TERMINATED) {
896 +                t.interrupt();
897 +                fail("Test timed out");
898 +            }
899 +        }
900 +    }
901 +
902 +    /**
903 +     * Waits for LONG_DELAY_MS milliseconds for the thread to
904 +     * terminate (using {@link Thread#join(long)}), else interrupts
905 +     * the thread (in the hope that it may terminate later) and fails.
906 +     */
907 +    void awaitTermination(Thread t) {
908 +        awaitTermination(t, LONG_DELAY_MS);
909 +    }
910 +
911      // Some convenient Runnable classes
912  
913      public abstract class CheckedRunnable implements Runnable {
# Line 456 | Line 935 | public class JSR166TestCase extends Test
935              try {
936                  realRun();
937                  threadShouldThrow(exceptionClass.getSimpleName());
459            } catch (InterruptedException success) {
938              } catch (Throwable t) {
939                  if (! exceptionClass.isInstance(t))
940                      threadUnexpectedException(t);
# Line 477 | Line 955 | public class JSR166TestCase extends Test
955              try {
956                  realRun();
957                  threadShouldThrow(exceptionClass.getSimpleName());
480            } catch (InterruptedException success) {
958              } catch (Throwable t) {
959                  if (! exceptionClass.isInstance(t))
960                      threadUnexpectedException(t);
# Line 493 | Line 970 | public class JSR166TestCase extends Test
970                  realRun();
971                  threadShouldThrow("InterruptedException");
972              } catch (InterruptedException success) {
973 +                threadAssertFalse(Thread.interrupted());
974              } catch (Throwable t) {
975                  threadUnexpectedException(t);
976              }
# Line 507 | Line 985 | public class JSR166TestCase extends Test
985                  return realCall();
986              } catch (Throwable t) {
987                  threadUnexpectedException(t);
988 +                return null;
989              }
511            return null;
990          }
991      }
992  
993 <    public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
993 >    public abstract class CheckedInterruptedCallable<T>
994 >        implements Callable<T> {
995          protected abstract T realCall() throws Throwable;
996  
997          public final T call() {
# Line 521 | Line 1000 | public class JSR166TestCase extends Test
1000                  threadShouldThrow("InterruptedException");
1001                  return result;
1002              } catch (InterruptedException success) {
1003 +                threadAssertFalse(Thread.interrupted());
1004              } catch (Throwable t) {
1005                  threadUnexpectedException(t);
1006              }
# Line 542 | Line 1022 | public class JSR166TestCase extends Test
1022          public String call() { return TEST_STRING; }
1023      }
1024  
1025 +    public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1026 +        return new CheckedCallable<String>() {
1027 +            protected String realCall() {
1028 +                try {
1029 +                    latch.await();
1030 +                } catch (InterruptedException quittingTime) {}
1031 +                return TEST_STRING;
1032 +            }};
1033 +    }
1034 +
1035 +    public Runnable awaiter(final CountDownLatch latch) {
1036 +        return new CheckedRunnable() {
1037 +            public void realRun() throws InterruptedException {
1038 +                await(latch);
1039 +            }};
1040 +    }
1041 +
1042 +    public void await(CountDownLatch latch) {
1043 +        try {
1044 +            assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1045 +        } catch (Throwable t) {
1046 +            threadUnexpectedException(t);
1047 +        }
1048 +    }
1049 +
1050 +    public void await(Semaphore semaphore) {
1051 +        try {
1052 +            assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1053 +        } catch (Throwable t) {
1054 +            threadUnexpectedException(t);
1055 +        }
1056 +    }
1057 +
1058 + //     /**
1059 + //      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1060 + //      */
1061 + //     public void await(AtomicBoolean flag) {
1062 + //         await(flag, LONG_DELAY_MS);
1063 + //     }
1064 +
1065 + //     /**
1066 + //      * Spin-waits up to the specified timeout until flag becomes true.
1067 + //      */
1068 + //     public void await(AtomicBoolean flag, long timeoutMillis) {
1069 + //         long startTime = System.nanoTime();
1070 + //         while (!flag.get()) {
1071 + //             if (millisElapsedSince(startTime) > timeoutMillis)
1072 + //                 throw new AssertionFailedError("timed out");
1073 + //             Thread.yield();
1074 + //         }
1075 + //     }
1076 +
1077      public static class NPETask implements Callable<String> {
1078          public String call() { throw new NullPointerException(); }
1079      }
# Line 552 | Line 1084 | public class JSR166TestCase extends Test
1084  
1085      public class ShortRunnable extends CheckedRunnable {
1086          protected void realRun() throws Throwable {
1087 <            Thread.sleep(SHORT_DELAY_MS);
1087 >            delay(SHORT_DELAY_MS);
1088          }
1089      }
1090  
1091      public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1092          protected void realRun() throws InterruptedException {
1093 <            Thread.sleep(SHORT_DELAY_MS);
1093 >            delay(SHORT_DELAY_MS);
1094          }
1095      }
1096  
1097      public class SmallRunnable extends CheckedRunnable {
1098          protected void realRun() throws Throwable {
1099 <            Thread.sleep(SMALL_DELAY_MS);
1099 >            delay(SMALL_DELAY_MS);
1100          }
1101      }
1102  
1103      public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1104          protected void realRun() {
1105              try {
1106 <                Thread.sleep(SMALL_DELAY_MS);
1106 >                delay(SMALL_DELAY_MS);
1107              } catch (InterruptedException ok) {}
1108          }
1109      }
1110  
1111      public class SmallCallable extends CheckedCallable {
1112          protected Object realCall() throws InterruptedException {
1113 <            Thread.sleep(SMALL_DELAY_MS);
1113 >            delay(SMALL_DELAY_MS);
1114              return Boolean.TRUE;
1115          }
1116      }
1117  
586    public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
587        protected void realRun() throws InterruptedException {
588            Thread.sleep(SMALL_DELAY_MS);
589        }
590    }
591
1118      public class MediumRunnable extends CheckedRunnable {
1119          protected void realRun() throws Throwable {
1120 <            Thread.sleep(MEDIUM_DELAY_MS);
1120 >            delay(MEDIUM_DELAY_MS);
1121          }
1122      }
1123  
1124      public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1125          protected void realRun() throws InterruptedException {
1126 <            Thread.sleep(MEDIUM_DELAY_MS);
1126 >            delay(MEDIUM_DELAY_MS);
1127          }
1128      }
1129  
1130 +    public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1131 +        return new CheckedRunnable() {
1132 +            protected void realRun() {
1133 +                try {
1134 +                    delay(timeoutMillis);
1135 +                } catch (InterruptedException ok) {}
1136 +            }};
1137 +    }
1138 +
1139      public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1140          protected void realRun() {
1141              try {
1142 <                Thread.sleep(MEDIUM_DELAY_MS);
1142 >                delay(MEDIUM_DELAY_MS);
1143              } catch (InterruptedException ok) {}
1144          }
1145      }
# Line 612 | Line 1147 | public class JSR166TestCase extends Test
1147      public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1148          protected void realRun() {
1149              try {
1150 <                Thread.sleep(LONG_DELAY_MS);
1150 >                delay(LONG_DELAY_MS);
1151              } catch (InterruptedException ok) {}
1152          }
1153      }
# Line 626 | Line 1161 | public class JSR166TestCase extends Test
1161          }
1162      }
1163  
1164 +    public interface TrackedRunnable extends Runnable {
1165 +        boolean isDone();
1166 +    }
1167 +
1168 +    public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1169 +        return new TrackedRunnable() {
1170 +                private volatile boolean done = false;
1171 +                public boolean isDone() { return done; }
1172 +                public void run() {
1173 +                    try {
1174 +                        delay(timeoutMillis);
1175 +                        done = true;
1176 +                    } catch (InterruptedException ok) {}
1177 +                }
1178 +            };
1179 +    }
1180 +
1181      public static class TrackedShortRunnable implements Runnable {
1182          public volatile boolean done = false;
1183          public void run() {
1184              try {
1185 <                Thread.sleep(SMALL_DELAY_MS);
1185 >                delay(SHORT_DELAY_MS);
1186 >                done = true;
1187 >            } catch (InterruptedException ok) {}
1188 >        }
1189 >    }
1190 >
1191 >    public static class TrackedSmallRunnable implements Runnable {
1192 >        public volatile boolean done = false;
1193 >        public void run() {
1194 >            try {
1195 >                delay(SMALL_DELAY_MS);
1196                  done = true;
1197              } catch (InterruptedException ok) {}
1198          }
# Line 640 | Line 1202 | public class JSR166TestCase extends Test
1202          public volatile boolean done = false;
1203          public void run() {
1204              try {
1205 <                Thread.sleep(MEDIUM_DELAY_MS);
1205 >                delay(MEDIUM_DELAY_MS);
1206                  done = true;
1207              } catch (InterruptedException ok) {}
1208          }
# Line 650 | Line 1212 | public class JSR166TestCase extends Test
1212          public volatile boolean done = false;
1213          public void run() {
1214              try {
1215 <                Thread.sleep(LONG_DELAY_MS);
1215 >                delay(LONG_DELAY_MS);
1216                  done = true;
1217              } catch (InterruptedException ok) {}
1218          }
# Line 667 | Line 1229 | public class JSR166TestCase extends Test
1229          public volatile boolean done = false;
1230          public Object call() {
1231              try {
1232 <                Thread.sleep(SMALL_DELAY_MS);
1232 >                delay(SMALL_DELAY_MS);
1233                  done = true;
1234              } catch (InterruptedException ok) {}
1235              return Boolean.TRUE;
1236          }
1237      }
1238  
1239 +    /**
1240 +     * Analog of CheckedRunnable for RecursiveAction
1241 +     */
1242 +    public abstract class CheckedRecursiveAction extends RecursiveAction {
1243 +        protected abstract void realCompute() throws Throwable;
1244 +
1245 +        @Override protected final void compute() {
1246 +            try {
1247 +                realCompute();
1248 +            } catch (Throwable t) {
1249 +                threadUnexpectedException(t);
1250 +            }
1251 +        }
1252 +    }
1253 +
1254 +    /**
1255 +     * Analog of CheckedCallable for RecursiveTask
1256 +     */
1257 +    public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1258 +        protected abstract T realCompute() throws Throwable;
1259 +
1260 +        @Override protected final T compute() {
1261 +            try {
1262 +                return realCompute();
1263 +            } catch (Throwable t) {
1264 +                threadUnexpectedException(t);
1265 +                return null;
1266 +            }
1267 +        }
1268 +    }
1269  
1270      /**
1271       * For use as RejectedExecutionHandler in constructors
# Line 683 | Line 1275 | public class JSR166TestCase extends Test
1275                                        ThreadPoolExecutor executor) {}
1276      }
1277  
1278 +    /**
1279 +     * A CyclicBarrier that uses timed await and fails with
1280 +     * AssertionFailedErrors instead of throwing checked exceptions.
1281 +     */
1282 +    public class CheckedBarrier extends CyclicBarrier {
1283 +        public CheckedBarrier(int parties) { super(parties); }
1284 +
1285 +        public int await() {
1286 +            try {
1287 +                return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1288 +            } catch (TimeoutException e) {
1289 +                throw new AssertionFailedError("timed out");
1290 +            } catch (Exception e) {
1291 +                AssertionFailedError afe =
1292 +                    new AssertionFailedError("Unexpected exception: " + e);
1293 +                afe.initCause(e);
1294 +                throw afe;
1295 +            }
1296 +        }
1297 +    }
1298 +
1299 +    void checkEmpty(BlockingQueue q) {
1300 +        try {
1301 +            assertTrue(q.isEmpty());
1302 +            assertEquals(0, q.size());
1303 +            assertNull(q.peek());
1304 +            assertNull(q.poll());
1305 +            assertNull(q.poll(0, MILLISECONDS));
1306 +            assertEquals(q.toString(), "[]");
1307 +            assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1308 +            assertFalse(q.iterator().hasNext());
1309 +            try {
1310 +                q.element();
1311 +                shouldThrow();
1312 +            } catch (NoSuchElementException success) {}
1313 +            try {
1314 +                q.iterator().next();
1315 +                shouldThrow();
1316 +            } catch (NoSuchElementException success) {}
1317 +            try {
1318 +                q.remove();
1319 +                shouldThrow();
1320 +            } catch (NoSuchElementException success) {}
1321 +        } catch (InterruptedException ie) {
1322 +            threadUnexpectedException(ie);
1323 +        }
1324 +    }
1325 +
1326 +    void assertSerialEquals(Object x, Object y) {
1327 +        assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1328 +    }
1329 +
1330 +    void assertNotSerialEquals(Object x, Object y) {
1331 +        assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1332 +    }
1333 +
1334 +    byte[] serialBytes(Object o) {
1335 +        try {
1336 +            ByteArrayOutputStream bos = new ByteArrayOutputStream();
1337 +            ObjectOutputStream oos = new ObjectOutputStream(bos);
1338 +            oos.writeObject(o);
1339 +            oos.flush();
1340 +            oos.close();
1341 +            return bos.toByteArray();
1342 +        } catch (Throwable t) {
1343 +            threadUnexpectedException(t);
1344 +            return new byte[0];
1345 +        }
1346 +    }
1347 +
1348 +    @SuppressWarnings("unchecked")
1349 +    <T> T serialClone(T o) {
1350 +        try {
1351 +            ObjectInputStream ois = new ObjectInputStream
1352 +                (new ByteArrayInputStream(serialBytes(o)));
1353 +            T clone = (T) ois.readObject();
1354 +            assertSame(o.getClass(), clone.getClass());
1355 +            return clone;
1356 +        } catch (Throwable t) {
1357 +            threadUnexpectedException(t);
1358 +            return null;
1359 +        }
1360 +    }
1361 +
1362 +    public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1363 +                             Runnable... throwingActions) {
1364 +        for (Runnable throwingAction : throwingActions) {
1365 +            boolean threw = false;
1366 +            try { throwingAction.run(); }
1367 +            catch (Throwable t) {
1368 +                threw = true;
1369 +                if (!expectedExceptionClass.isInstance(t)) {
1370 +                    AssertionFailedError afe =
1371 +                        new AssertionFailedError
1372 +                        ("Expected " + expectedExceptionClass.getName() +
1373 +                         ", got " + t.getClass().getName());
1374 +                    afe.initCause(t);
1375 +                    threadUnexpectedException(afe);
1376 +                }
1377 +            }
1378 +            if (!threw)
1379 +                shouldThrow(expectedExceptionClass.getName());
1380 +        }
1381 +    }
1382   }

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