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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.46 by jsr166, Tue Dec 1 05:41:40 2009 UTC vs.
Revision 1.115 by jsr166, Wed May 14 21:06:38 2014 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.util.regex.Pattern;
30 > import java.security.CodeSource;
31 > import java.security.Permission;
32 > import java.security.PermissionCollection;
33 > import java.security.Permissions;
34 > import java.security.Policy;
35 > import java.security.ProtectionDomain;
36 > import java.security.SecurityPermission;
37  
38   /**
39   * Base class for JSR166 Junit TCK tests.  Defines some constants,
# Line 26 | Line 48 | import java.security.*;
48   * <li> All assertions in code running in generated threads must use
49   * the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
50   * #threadAssertEquals}, or {@link #threadAssertNull}, (not
51 < * <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
51 > * {@code fail}, {@code assertTrue}, etc.) It is OK (but not
52   * particularly recommended) for other code to use these forms too.
53   * Only the most typically used JUnit assertion methods are defined
54   * this way, but enough to live with.</li>
55   *
56   * <li> If you override {@link #setUp} or {@link #tearDown}, make sure
57 < * to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
57 > * to invoke {@code super.setUp} and {@code super.tearDown} within
58   * them. These methods are used to clear and check for thread
59   * assertion failures.</li>
60   *
61 < * <li>All delays and timeouts must use one of the constants <tt>
62 < * SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
63 < * <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
61 > * <li>All delays and timeouts must use one of the constants {@code
62 > * SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
63 > * {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
64   * discriminable from zero time, and always allows enough time for the
65   * small amounts of computation (creating a thread, calling a few
66   * methods, etc) needed to reach a timeout point. Similarly, a SMALL
# Line 48 | Line 70 | import java.security.*;
70   * in one spot to rerun tests on slower platforms.</li>
71   *
72   * <li> All threads generated must be joined inside each test case
73 < * method (or <tt>fail</tt> to do so) before returning from the
74 < * method. The <tt> joinPool</tt> method can be used to do this when
73 > * method (or {@code fail} to do so) before returning from the
74 > * method. The {@code joinPool} method can be used to do this when
75   * using Executors.</li>
76   *
77   * </ol>
78   *
79 < * <p> <b>Other notes</b>
79 > * <p><b>Other notes</b>
80   * <ul>
81   *
82   * <li> Usually, there is one testcase method per JSR166 method
# Line 81 | Line 103 | import java.security.*;
103   * any particular package to simplify things for people integrating
104   * them in TCK test suites.</li>
105   *
106 < * <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
106 > * <li> As a convenience, the {@code main} of this class (JSR166TestCase)
107   * runs all JSR166 unit tests.</li>
108   *
109   * </ul>
110   */
111   public class JSR166TestCase extends TestCase {
112 +    private static final boolean useSecurityManager =
113 +        Boolean.getBoolean("jsr166.useSecurityManager");
114 +
115 +    protected static final boolean expensiveTests =
116 +        Boolean.getBoolean("jsr166.expensiveTests");
117 +
118 +    /**
119 +     * If true, report on stdout all "slow" tests, that is, ones that
120 +     * take more than profileThreshold milliseconds to execute.
121 +     */
122 +    private static final boolean profileTests =
123 +        Boolean.getBoolean("jsr166.profileTests");
124 +
125 +    /**
126 +     * The number of milliseconds that tests are permitted for
127 +     * execution without being reported, when profileTests is set.
128 +     */
129 +    private static final long profileThreshold =
130 +        Long.getLong("jsr166.profileThreshold", 100);
131 +
132      /**
133 <     * Runs all JSR166 unit tests using junit.textui.TestRunner
133 >     * The number of repetitions per test (for tickling rare bugs).
134 >     */
135 >    private static final int runsPerTest =
136 >        Integer.getInteger("jsr166.runsPerTest", 1);
137 >
138 >    /**
139 >     * A filter for tests to run, matching strings of the form
140 >     * methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
141 >     * Usefully combined with jsr166.runsPerTest.
142 >     */
143 >    private static final Pattern methodFilter = methodFilter();
144 >
145 >    private static Pattern methodFilter() {
146 >        String regex = System.getProperty("jsr166.methodFilter");
147 >        return (regex == null) ? null : Pattern.compile(regex);
148 >    }
149 >
150 >    protected void runTest() throws Throwable {
151 >        if (methodFilter == null
152 >            || methodFilter.matcher(toString()).find()) {
153 >            for (int i = 0; i < runsPerTest; i++) {
154 >                if (profileTests)
155 >                    runTestProfiled();
156 >                else
157 >                    super.runTest();
158 >            }
159 >        }
160 >    }
161 >
162 >    protected void runTestProfiled() throws Throwable {
163 >        long t0 = System.nanoTime();
164 >        try {
165 >            super.runTest();
166 >        } finally {
167 >            long elapsedMillis =
168 >                (System.nanoTime() - t0) / (1000L * 1000L);
169 >            if (elapsedMillis >= profileThreshold)
170 >                System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
171 >        }
172 >    }
173 >
174 >    /**
175 >     * Runs all JSR166 unit tests using junit.textui.TestRunner.
176 >     * Optional command line arg provides the number of iterations to
177 >     * repeat running the tests.
178       */
179      public static void main(String[] args) {
180 <        int iters = 1;
181 <        if (args.length > 0)
182 <            iters = Integer.parseInt(args[0]);
180 >        if (useSecurityManager) {
181 >            System.err.println("Setting a permissive security manager");
182 >            Policy.setPolicy(permissivePolicy());
183 >            System.setSecurityManager(new SecurityManager());
184 >        }
185 >        int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
186 >
187          Test s = suite();
188          for (int i = 0; i < iters; ++i) {
189              junit.textui.TestRunner.run(s);
# Line 103 | Line 193 | public class JSR166TestCase extends Test
193          System.exit(0);
194      }
195  
196 +    public static TestSuite newTestSuite(Object... suiteOrClasses) {
197 +        TestSuite suite = new TestSuite();
198 +        for (Object suiteOrClass : suiteOrClasses) {
199 +            if (suiteOrClass instanceof TestSuite)
200 +                suite.addTest((TestSuite) suiteOrClass);
201 +            else if (suiteOrClass instanceof Class)
202 +                suite.addTest(new TestSuite((Class<?>) suiteOrClass));
203 +            else
204 +                throw new ClassCastException("not a test suite or class");
205 +        }
206 +        return suite;
207 +    }
208 +
209 +    public static void addNamedTestClasses(TestSuite suite,
210 +                                           String... testClassNames) {
211 +        for (String testClassName : testClassNames) {
212 +            try {
213 +                Class<?> testClass = Class.forName(testClassName);
214 +                Method m = testClass.getDeclaredMethod("suite",
215 +                                                       new Class<?>[0]);
216 +                suite.addTest(newTestSuite((Test)m.invoke(null)));
217 +            } catch (Exception e) {
218 +                throw new Error("Missing test class", e);
219 +            }
220 +        }
221 +    }
222 +
223 +    public static final double JAVA_CLASS_VERSION;
224 +    public static final String JAVA_SPECIFICATION_VERSION;
225 +    static {
226 +        try {
227 +            JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
228 +                new java.security.PrivilegedAction<Double>() {
229 +                public Double run() {
230 +                    return Double.valueOf(System.getProperty("java.class.version"));}});
231 +            JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
232 +                new java.security.PrivilegedAction<String>() {
233 +                public String run() {
234 +                    return System.getProperty("java.specification.version");}});
235 +        } catch (Throwable t) {
236 +            throw new Error(t);
237 +        }
238 +    }
239 +
240 +    public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
241 +    public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
242 +    public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
243 +    public static boolean atLeastJava9() {
244 +        // As of 2014-05, java9 still uses 52.0 class file version
245 +        return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
246 +    }
247 +
248      /**
249 <     * Collects all JSR166 unit tests as one suite
249 >     * Collects all JSR166 unit tests as one suite.
250       */
251      public static Test suite() {
252 <        TestSuite suite = new TestSuite("JSR166 Unit Tests");
253 <
254 <        suite.addTest(new TestSuite(ForkJoinPoolTest.class));
255 <        suite.addTest(new TestSuite(ForkJoinTaskTest.class));
256 <        suite.addTest(new TestSuite(RecursiveActionTest.class));
257 <        suite.addTest(new TestSuite(RecursiveTaskTest.class));
258 <        suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
259 <        suite.addTest(new TestSuite(PhaserTest.class));
260 <        suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
261 <        suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
262 <        suite.addTest(new TestSuite(AbstractQueueTest.class));
263 <        suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
264 <        suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
265 <        suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
266 <        suite.addTest(new TestSuite(ArrayDequeTest.class));
267 <        suite.addTest(new TestSuite(AtomicBooleanTest.class));
268 <        suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
269 <        suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
270 <        suite.addTest(new TestSuite(AtomicIntegerTest.class));
271 <        suite.addTest(new TestSuite(AtomicLongArrayTest.class));
272 <        suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
273 <        suite.addTest(new TestSuite(AtomicLongTest.class));
274 <        suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
275 <        suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
276 <        suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
277 <        suite.addTest(new TestSuite(AtomicReferenceTest.class));
278 <        suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
279 <        suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
280 <        suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
281 <        suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
282 <        suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
283 <        suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
284 <        suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
285 <        suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
286 <        suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
287 <        suite.addTest(new TestSuite(CountDownLatchTest.class));
288 <        suite.addTest(new TestSuite(CyclicBarrierTest.class));
289 <        suite.addTest(new TestSuite(DelayQueueTest.class));
290 <        suite.addTest(new TestSuite(EntryTest.class));
291 <        suite.addTest(new TestSuite(ExchangerTest.class));
292 <        suite.addTest(new TestSuite(ExecutorsTest.class));
293 <        suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
294 <        suite.addTest(new TestSuite(FutureTaskTest.class));
295 <        suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
296 <        suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
297 <        suite.addTest(new TestSuite(LinkedListTest.class));
298 <        suite.addTest(new TestSuite(LockSupportTest.class));
299 <        suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
300 <        suite.addTest(new TestSuite(PriorityQueueTest.class));
301 <        suite.addTest(new TestSuite(ReentrantLockTest.class));
302 <        suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
303 <        suite.addTest(new TestSuite(ScheduledExecutorTest.class));
304 <        suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
305 <        suite.addTest(new TestSuite(SemaphoreTest.class));
306 <        suite.addTest(new TestSuite(SynchronousQueueTest.class));
307 <        suite.addTest(new TestSuite(SystemTest.class));
308 <        suite.addTest(new TestSuite(ThreadLocalTest.class));
309 <        suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
310 <        suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
311 <        suite.addTest(new TestSuite(ThreadTest.class));
312 <        suite.addTest(new TestSuite(TimeUnitTest.class));
313 <        suite.addTest(new TestSuite(TreeMapTest.class));
314 <        suite.addTest(new TestSuite(TreeSetTest.class));
315 <        suite.addTest(new TestSuite(TreeSubMapTest.class));
316 <        suite.addTest(new TestSuite(TreeSubSetTest.class));
252 >        // Java7+ test classes
253 >        TestSuite suite = newTestSuite(
254 >            ForkJoinPoolTest.suite(),
255 >            ForkJoinTaskTest.suite(),
256 >            RecursiveActionTest.suite(),
257 >            RecursiveTaskTest.suite(),
258 >            LinkedTransferQueueTest.suite(),
259 >            PhaserTest.suite(),
260 >            ThreadLocalRandomTest.suite(),
261 >            AbstractExecutorServiceTest.suite(),
262 >            AbstractQueueTest.suite(),
263 >            AbstractQueuedSynchronizerTest.suite(),
264 >            AbstractQueuedLongSynchronizerTest.suite(),
265 >            ArrayBlockingQueueTest.suite(),
266 >            ArrayDequeTest.suite(),
267 >            AtomicBooleanTest.suite(),
268 >            AtomicIntegerArrayTest.suite(),
269 >            AtomicIntegerFieldUpdaterTest.suite(),
270 >            AtomicIntegerTest.suite(),
271 >            AtomicLongArrayTest.suite(),
272 >            AtomicLongFieldUpdaterTest.suite(),
273 >            AtomicLongTest.suite(),
274 >            AtomicMarkableReferenceTest.suite(),
275 >            AtomicReferenceArrayTest.suite(),
276 >            AtomicReferenceFieldUpdaterTest.suite(),
277 >            AtomicReferenceTest.suite(),
278 >            AtomicStampedReferenceTest.suite(),
279 >            ConcurrentHashMapTest.suite(),
280 >            ConcurrentLinkedDequeTest.suite(),
281 >            ConcurrentLinkedQueueTest.suite(),
282 >            ConcurrentSkipListMapTest.suite(),
283 >            ConcurrentSkipListSubMapTest.suite(),
284 >            ConcurrentSkipListSetTest.suite(),
285 >            ConcurrentSkipListSubSetTest.suite(),
286 >            CopyOnWriteArrayListTest.suite(),
287 >            CopyOnWriteArraySetTest.suite(),
288 >            CountDownLatchTest.suite(),
289 >            CyclicBarrierTest.suite(),
290 >            DelayQueueTest.suite(),
291 >            EntryTest.suite(),
292 >            ExchangerTest.suite(),
293 >            ExecutorsTest.suite(),
294 >            ExecutorCompletionServiceTest.suite(),
295 >            FutureTaskTest.suite(),
296 >            LinkedBlockingDequeTest.suite(),
297 >            LinkedBlockingQueueTest.suite(),
298 >            LinkedListTest.suite(),
299 >            LockSupportTest.suite(),
300 >            PriorityBlockingQueueTest.suite(),
301 >            PriorityQueueTest.suite(),
302 >            ReentrantLockTest.suite(),
303 >            ReentrantReadWriteLockTest.suite(),
304 >            ScheduledExecutorTest.suite(),
305 >            ScheduledExecutorSubclassTest.suite(),
306 >            SemaphoreTest.suite(),
307 >            SynchronousQueueTest.suite(),
308 >            SystemTest.suite(),
309 >            ThreadLocalTest.suite(),
310 >            ThreadPoolExecutorTest.suite(),
311 >            ThreadPoolExecutorSubclassTest.suite(),
312 >            ThreadTest.suite(),
313 >            TimeUnitTest.suite(),
314 >            TreeMapTest.suite(),
315 >            TreeSetTest.suite(),
316 >            TreeSubMapTest.suite(),
317 >            TreeSubSetTest.suite());
318 >
319 >        // Java8+ test classes
320 >        if (atLeastJava8()) {
321 >            String[] java8TestClassNames = {
322 >                "Atomic8Test",
323 >                "CompletableFutureTest",
324 >                "ConcurrentHashMap8Test",
325 >                "CountedCompleterTest",
326 >                "DoubleAccumulatorTest",
327 >                "DoubleAdderTest",
328 >                "ForkJoinPool8Test",
329 >                "ForkJoinTask8Test",
330 >                "LongAccumulatorTest",
331 >                "LongAdderTest",
332 >                "SplittableRandomTest",
333 >                "StampedLockTest",
334 >                "ThreadLocalRandom8Test",
335 >            };
336 >            addNamedTestClasses(suite, java8TestClassNames);
337 >        }
338 >
339 >        // Java9+ test classes
340 >        if (atLeastJava9()) {
341 >            String[] java9TestClassNames = {
342 >                "ThreadPoolExecutor9Test",
343 >            };
344 >            addNamedTestClasses(suite, java9TestClassNames);
345 >        }
346  
347          return suite;
348      }
349  
350 +    // Delays for timing-dependent tests, in milliseconds.
351  
352      public static long SHORT_DELAY_MS;
353      public static long SMALL_DELAY_MS;
354      public static long MEDIUM_DELAY_MS;
355      public static long LONG_DELAY_MS;
356  
185
357      /**
358       * Returns the shortest timed delay. This could
359       * be reimplemented to use for example a Property.
# Line 191 | Line 362 | public class JSR166TestCase extends Test
362          return 50;
363      }
364  
194
365      /**
366       * Sets delays as multiples of SHORT_DELAY.
367       */
368      protected void setDelays() {
369          SHORT_DELAY_MS = getShortDelay();
370 <        SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
370 >        SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
371          MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
372 <        LONG_DELAY_MS = SHORT_DELAY_MS * 50;
372 >        LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
373 >    }
374 >
375 >    /**
376 >     * Returns a timeout in milliseconds to be used in tests that
377 >     * verify that operations block or time out.
378 >     */
379 >    long timeoutMillis() {
380 >        return SHORT_DELAY_MS / 4;
381 >    }
382 >
383 >    /**
384 >     * Returns a new Date instance representing a time delayMillis
385 >     * milliseconds in the future.
386 >     */
387 >    Date delayedDate(long delayMillis) {
388 >        return new Date(System.currentTimeMillis() + delayMillis);
389      }
390  
391      /**
392 <     * Flag set true if any threadAssert methods fail
392 >     * The first exception encountered if any threadAssertXXX method fails.
393       */
394 <    volatile boolean threadFailed;
394 >    private final AtomicReference<Throwable> threadFailure
395 >        = new AtomicReference<Throwable>(null);
396  
397      /**
398 <     * Initializes test to indicate that no thread assertions have failed
398 >     * Records an exception so that it can be rethrown later in the test
399 >     * harness thread, triggering a test case failure.  Only the first
400 >     * failure is recorded; subsequent calls to this method from within
401 >     * the same test have no effect.
402       */
403 +    public void threadRecordFailure(Throwable t) {
404 +        threadFailure.compareAndSet(null, t);
405 +    }
406 +
407      public void setUp() {
408          setDelays();
215        threadFailed = false;
409      }
410  
411      /**
412 <     * Triggers test case failure if any thread assertions have failed
412 >     * Extra checks that get done for all test cases.
413 >     *
414 >     * Triggers test case failure if any thread assertions have failed,
415 >     * by rethrowing, in the test harness thread, any exception recorded
416 >     * earlier by threadRecordFailure.
417 >     *
418 >     * Triggers test case failure if interrupt status is set in the main thread.
419 >     */
420 >    public void tearDown() throws Exception {
421 >        Throwable t = threadFailure.getAndSet(null);
422 >        if (t != null) {
423 >            if (t instanceof Error)
424 >                throw (Error) t;
425 >            else if (t instanceof RuntimeException)
426 >                throw (RuntimeException) t;
427 >            else if (t instanceof Exception)
428 >                throw (Exception) t;
429 >            else {
430 >                AssertionFailedError afe =
431 >                    new AssertionFailedError(t.toString());
432 >                afe.initCause(t);
433 >                throw afe;
434 >            }
435 >        }
436 >
437 >        if (Thread.interrupted())
438 >            throw new AssertionFailedError("interrupt status set in main thread");
439 >
440 >        checkForkJoinPoolThreadLeaks();
441 >    }
442 >
443 >    /**
444 >     * Find missing try { ... } finally { joinPool(e); }
445       */
446 <    public void tearDown() {
447 <        assertFalse(threadFailed);
446 >    void checkForkJoinPoolThreadLeaks() throws InterruptedException {
447 >        Thread[] survivors = new Thread[5];
448 >        int count = Thread.enumerate(survivors);
449 >        for (int i = 0; i < count; i++) {
450 >            Thread thread = survivors[i];
451 >            String name = thread.getName();
452 >            if (name.startsWith("ForkJoinPool-")) {
453 >                // give thread some time to terminate
454 >                thread.join(LONG_DELAY_MS);
455 >                if (!thread.isAlive()) continue;
456 >                thread.stop();
457 >                throw new AssertionFailedError
458 >                    (String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
459 >                                   toString(), name));
460 >            }
461 >        }
462      }
463  
464      /**
465 <     * Fail, also setting status to indicate current testcase should fail
465 >     * Just like fail(reason), but additionally recording (using
466 >     * threadRecordFailure) any AssertionFailedError thrown, so that
467 >     * the current testcase will fail.
468       */
469      public void threadFail(String reason) {
470 <        threadFailed = true;
471 <        fail(reason);
470 >        try {
471 >            fail(reason);
472 >        } catch (AssertionFailedError t) {
473 >            threadRecordFailure(t);
474 >            fail(reason);
475 >        }
476      }
477  
478      /**
479 <     * If expression not true, set status to indicate current testcase
480 <     * should fail
479 >     * Just like assertTrue(b), but additionally recording (using
480 >     * threadRecordFailure) any AssertionFailedError thrown, so that
481 >     * the current testcase will fail.
482       */
483      public void threadAssertTrue(boolean b) {
484 <        if (!b) {
239 <            threadFailed = true;
484 >        try {
485              assertTrue(b);
486 +        } catch (AssertionFailedError t) {
487 +            threadRecordFailure(t);
488 +            throw t;
489          }
490      }
491  
492      /**
493 <     * If expression not false, set status to indicate current testcase
494 <     * should fail
493 >     * Just like assertFalse(b), but additionally recording (using
494 >     * threadRecordFailure) any AssertionFailedError thrown, so that
495 >     * the current testcase will fail.
496       */
497      public void threadAssertFalse(boolean b) {
498 <        if (b) {
250 <            threadFailed = true;
498 >        try {
499              assertFalse(b);
500 +        } catch (AssertionFailedError t) {
501 +            threadRecordFailure(t);
502 +            throw t;
503          }
504      }
505  
506      /**
507 <     * If argument not null, set status to indicate current testcase
508 <     * should fail
507 >     * Just like assertNull(x), but additionally recording (using
508 >     * threadRecordFailure) any AssertionFailedError thrown, so that
509 >     * the current testcase will fail.
510       */
511      public void threadAssertNull(Object x) {
512 <        if (x != null) {
261 <            threadFailed = true;
512 >        try {
513              assertNull(x);
514 +        } catch (AssertionFailedError t) {
515 +            threadRecordFailure(t);
516 +            throw t;
517          }
518      }
519  
520      /**
521 <     * If arguments not equal, set status to indicate current testcase
522 <     * should fail
521 >     * Just like assertEquals(x, y), but additionally recording (using
522 >     * threadRecordFailure) any AssertionFailedError thrown, so that
523 >     * the current testcase will fail.
524       */
525      public void threadAssertEquals(long x, long y) {
526 <        if (x != y) {
272 <            threadFailed = true;
526 >        try {
527              assertEquals(x, y);
528 +        } catch (AssertionFailedError t) {
529 +            threadRecordFailure(t);
530 +            throw t;
531          }
532      }
533  
534      /**
535 <     * If arguments not equal, set status to indicate current testcase
536 <     * should fail
535 >     * Just like assertEquals(x, y), but additionally recording (using
536 >     * threadRecordFailure) any AssertionFailedError thrown, so that
537 >     * the current testcase will fail.
538       */
539      public void threadAssertEquals(Object x, Object y) {
540 <        if (x != y && (x == null || !x.equals(y))) {
283 <            threadFailed = true;
540 >        try {
541              assertEquals(x, y);
542 +        } catch (AssertionFailedError t) {
543 +            threadRecordFailure(t);
544 +            throw t;
545 +        } catch (Throwable t) {
546 +            threadUnexpectedException(t);
547 +        }
548 +    }
549 +
550 +    /**
551 +     * Just like assertSame(x, y), but additionally recording (using
552 +     * threadRecordFailure) any AssertionFailedError thrown, so that
553 +     * the current testcase will fail.
554 +     */
555 +    public void threadAssertSame(Object x, Object y) {
556 +        try {
557 +            assertSame(x, y);
558 +        } catch (AssertionFailedError t) {
559 +            threadRecordFailure(t);
560 +            throw t;
561          }
562      }
563  
564      /**
565 <     * threadFail with message "should throw exception"
565 >     * Calls threadFail with message "should throw exception".
566       */
567      public void threadShouldThrow() {
568 <        threadFailed = true;
293 <        fail("should throw exception");
568 >        threadFail("should throw exception");
569      }
570  
571      /**
572 <     * threadFail with message "should throw" + exceptionName
572 >     * Calls threadFail with message "should throw" + exceptionName.
573       */
574      public void threadShouldThrow(String exceptionName) {
575 <        threadFailed = true;
301 <        fail("should throw " + exceptionName);
575 >        threadFail("should throw " + exceptionName);
576      }
577  
578      /**
579 <     * threadFail with message "Unexpected exception"
579 >     * Records the given exception using {@link #threadRecordFailure},
580 >     * then rethrows the exception, wrapping it in an
581 >     * AssertionFailedError if necessary.
582       */
583 <    public void threadUnexpectedException() {
584 <        threadFailed = true;
585 <        fail("Unexpected exception");
583 >    public void threadUnexpectedException(Throwable t) {
584 >        threadRecordFailure(t);
585 >        t.printStackTrace();
586 >        if (t instanceof RuntimeException)
587 >            throw (RuntimeException) t;
588 >        else if (t instanceof Error)
589 >            throw (Error) t;
590 >        else {
591 >            AssertionFailedError afe =
592 >                new AssertionFailedError("unexpected exception: " + t);
593 >            afe.initCause(t);
594 >            throw afe;
595 >        }
596      }
597  
598      /**
599 <     * threadFail with message "Unexpected exception", with argument
599 >     * Delays, via Thread.sleep, for the given millisecond delay, but
600 >     * if the sleep is shorter than specified, may re-sleep or yield
601 >     * until time elapses.
602       */
603 <    public void threadUnexpectedException(Throwable ex) {
604 <        threadFailed = true;
605 <        ex.printStackTrace();
606 <        fail("Unexpected exception: " + ex);
603 >    static void delay(long millis) throws InterruptedException {
604 >        long startTime = System.nanoTime();
605 >        long ns = millis * 1000 * 1000;
606 >        for (;;) {
607 >            if (millis > 0L)
608 >                Thread.sleep(millis);
609 >            else // too short to sleep
610 >                Thread.yield();
611 >            long d = ns - (System.nanoTime() - startTime);
612 >            if (d > 0L)
613 >                millis = d / (1000 * 1000);
614 >            else
615 >                break;
616 >        }
617      }
618  
619      /**
620 <     * Wait out termination of a thread pool or fail doing so
620 >     * Waits out termination of a thread pool or fails doing so.
621       */
622 <    public void joinPool(ExecutorService exec) {
622 >    void joinPool(ExecutorService exec) {
623          try {
624              exec.shutdown();
625 <            assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
625 >            assertTrue("ExecutorService did not terminate in a timely manner",
626 >                       exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
627          } catch (SecurityException ok) {
628              // Allowed in case test doesn't have privs
629          } catch (InterruptedException ie) {
# Line 332 | Line 631 | public class JSR166TestCase extends Test
631          }
632      }
633  
634 +    /**
635 +     * A debugging tool to print all stack traces, as jstack does.
636 +     */
637 +    static void printAllStackTraces() {
638 +        for (ThreadInfo info :
639 +                 ManagementFactory.getThreadMXBean()
640 +                 .dumpAllThreads(true, true))
641 +            System.err.print(info);
642 +    }
643  
644      /**
645 <     * fail with message "should throw exception"
645 >     * Checks that thread does not terminate within the default
646 >     * millisecond delay of {@code timeoutMillis()}.
647       */
648 <    public void shouldThrow() {
649 <        fail("Should throw exception");
648 >    void assertThreadStaysAlive(Thread thread) {
649 >        assertThreadStaysAlive(thread, timeoutMillis());
650      }
651  
652      /**
653 <     * fail with message "should throw " + exceptionName
653 >     * Checks that thread does not terminate within the given millisecond delay.
654       */
655 <    public void shouldThrow(String exceptionName) {
656 <        fail("Should throw " + exceptionName);
655 >    void assertThreadStaysAlive(Thread thread, long millis) {
656 >        try {
657 >            // No need to optimize the failing case via Thread.join.
658 >            delay(millis);
659 >            assertTrue(thread.isAlive());
660 >        } catch (InterruptedException ie) {
661 >            fail("Unexpected InterruptedException");
662 >        }
663      }
664  
665      /**
666 <     * fail with message "Unexpected exception"
666 >     * Checks that the threads do not terminate within the default
667 >     * millisecond delay of {@code timeoutMillis()}.
668       */
669 <    public void unexpectedException() {
670 <        fail("Unexpected exception");
669 >    void assertThreadsStayAlive(Thread... threads) {
670 >        assertThreadsStayAlive(timeoutMillis(), threads);
671      }
672  
673      /**
674 <     * fail with message "Unexpected exception", with argument
674 >     * Checks that the threads do not terminate within the given millisecond delay.
675       */
676 <    public void unexpectedException(Throwable ex) {
677 <        ex.printStackTrace();
678 <        fail("Unexpected exception: " + ex);
676 >    void assertThreadsStayAlive(long millis, Thread... threads) {
677 >        try {
678 >            // No need to optimize the failing case via Thread.join.
679 >            delay(millis);
680 >            for (Thread thread : threads)
681 >                assertTrue(thread.isAlive());
682 >        } catch (InterruptedException ie) {
683 >            fail("Unexpected InterruptedException");
684 >        }
685 >    }
686 >
687 >    /**
688 >     * Checks that future.get times out, with the default timeout of
689 >     * {@code timeoutMillis()}.
690 >     */
691 >    void assertFutureTimesOut(Future future) {
692 >        assertFutureTimesOut(future, timeoutMillis());
693 >    }
694 >
695 >    /**
696 >     * Checks that future.get times out, with the given millisecond timeout.
697 >     */
698 >    void assertFutureTimesOut(Future future, long timeoutMillis) {
699 >        long startTime = System.nanoTime();
700 >        try {
701 >            future.get(timeoutMillis, MILLISECONDS);
702 >            shouldThrow();
703 >        } catch (TimeoutException success) {
704 >        } catch (Exception e) {
705 >            threadUnexpectedException(e);
706 >        } finally { future.cancel(true); }
707 >        assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
708 >    }
709 >
710 >    /**
711 >     * Fails with message "should throw exception".
712 >     */
713 >    public void shouldThrow() {
714 >        fail("Should throw exception");
715      }
716  
717 +    /**
718 +     * Fails with message "should throw " + exceptionName.
719 +     */
720 +    public void shouldThrow(String exceptionName) {
721 +        fail("Should throw " + exceptionName);
722 +    }
723  
724      /**
725       * The number of elements to place in collections, arrays, etc.
# Line 370 | Line 728 | public class JSR166TestCase extends Test
728  
729      // Some convenient Integer constants
730  
731 <    public static final Integer zero = new Integer(0);
732 <    public static final Integer one = new Integer(1);
733 <    public static final Integer two = new Integer(2);
734 <    public static final Integer three  = new Integer(3);
731 >    public static final Integer zero  = new Integer(0);
732 >    public static final Integer one   = new Integer(1);
733 >    public static final Integer two   = new Integer(2);
734 >    public static final Integer three = new Integer(3);
735      public static final Integer four  = new Integer(4);
736      public static final Integer five  = new Integer(5);
737 <    public static final Integer six = new Integer(6);
737 >    public static final Integer six   = new Integer(6);
738      public static final Integer seven = new Integer(7);
739      public static final Integer eight = new Integer(8);
740 <    public static final Integer nine = new Integer(9);
740 >    public static final Integer nine  = new Integer(9);
741      public static final Integer m1  = new Integer(-1);
742      public static final Integer m2  = new Integer(-2);
743      public static final Integer m3  = new Integer(-3);
744 <    public static final Integer m4 = new Integer(-4);
745 <    public static final Integer m5 = new Integer(-5);
746 <    public static final Integer m6 = new Integer(-6);
744 >    public static final Integer m4  = new Integer(-4);
745 >    public static final Integer m5  = new Integer(-5);
746 >    public static final Integer m6  = new Integer(-6);
747      public static final Integer m10 = new Integer(-10);
748  
749 +    /**
750 +     * Runs Runnable r with a security policy that permits precisely
751 +     * the specified permissions.  If there is no current security
752 +     * manager, the runnable is run twice, both with and without a
753 +     * security manager.  We require that any security manager permit
754 +     * getPolicy/setPolicy.
755 +     */
756 +    public void runWithPermissions(Runnable r, Permission... permissions) {
757 +        SecurityManager sm = System.getSecurityManager();
758 +        if (sm == null) {
759 +            r.run();
760 +        }
761 +        runWithSecurityManagerWithPermissions(r, permissions);
762 +    }
763 +
764 +    /**
765 +     * Runs Runnable r with a security policy that permits precisely
766 +     * the specified permissions.  If there is no current security
767 +     * manager, a temporary one is set for the duration of the
768 +     * Runnable.  We require that any security manager permit
769 +     * getPolicy/setPolicy.
770 +     */
771 +    public void runWithSecurityManagerWithPermissions(Runnable r,
772 +                                                      Permission... permissions) {
773 +        SecurityManager sm = System.getSecurityManager();
774 +        if (sm == null) {
775 +            Policy savedPolicy = Policy.getPolicy();
776 +            try {
777 +                Policy.setPolicy(permissivePolicy());
778 +                System.setSecurityManager(new SecurityManager());
779 +                runWithSecurityManagerWithPermissions(r, permissions);
780 +            } finally {
781 +                System.setSecurityManager(null);
782 +                Policy.setPolicy(savedPolicy);
783 +            }
784 +        } else {
785 +            Policy savedPolicy = Policy.getPolicy();
786 +            AdjustablePolicy policy = new AdjustablePolicy(permissions);
787 +            Policy.setPolicy(policy);
788 +
789 +            try {
790 +                r.run();
791 +            } finally {
792 +                policy.addPermission(new SecurityPermission("setPolicy"));
793 +                Policy.setPolicy(savedPolicy);
794 +            }
795 +        }
796 +    }
797 +
798 +    /**
799 +     * Runs a runnable without any permissions.
800 +     */
801 +    public void runWithoutPermissions(Runnable r) {
802 +        runWithPermissions(r);
803 +    }
804  
805      /**
806       * A security policy where new permissions can be dynamically added
# Line 395 | Line 808 | public class JSR166TestCase extends Test
808       */
809      public static class AdjustablePolicy extends java.security.Policy {
810          Permissions perms = new Permissions();
811 <        AdjustablePolicy() { }
811 >        AdjustablePolicy(Permission... permissions) {
812 >            for (Permission permission : permissions)
813 >                perms.add(permission);
814 >        }
815          void addPermission(Permission perm) { perms.add(perm); }
816          void clearPermissions() { perms = new Permissions(); }
817          public PermissionCollection getPermissions(CodeSource cs) {
# Line 408 | Line 824 | public class JSR166TestCase extends Test
824              return perms.implies(p);
825          }
826          public void refresh() {}
827 +        public String toString() {
828 +            List<Permission> ps = new ArrayList<Permission>();
829 +            for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
830 +                ps.add(e.nextElement());
831 +            return "AdjustablePolicy with permissions " + ps;
832 +        }
833 +    }
834 +
835 +    /**
836 +     * Returns a policy containing all the permissions we ever need.
837 +     */
838 +    public static Policy permissivePolicy() {
839 +        return new AdjustablePolicy
840 +            // Permissions j.u.c. needs directly
841 +            (new RuntimePermission("modifyThread"),
842 +             new RuntimePermission("getClassLoader"),
843 +             new RuntimePermission("setContextClassLoader"),
844 +             // Permissions needed to change permissions!
845 +             new SecurityPermission("getPolicy"),
846 +             new SecurityPermission("setPolicy"),
847 +             new RuntimePermission("setSecurityManager"),
848 +             // Permissions needed by the junit test harness
849 +             new RuntimePermission("accessDeclaredMembers"),
850 +             new PropertyPermission("*", "read"),
851 +             new java.io.FilePermission("<<ALL FILES>>", "read"));
852      }
853  
854      /**
855 <     * Sleep until the timeout has elapsed, or interrupted.
856 <     * Does <em>NOT</em> throw InterruptedException.
855 >     * Sleeps until the given time has elapsed.
856 >     * Throws AssertionFailedError if interrupted.
857       */
858 <    void sleepTillInterrupted(long timeoutMillis) {
858 >    void sleep(long millis) {
859          try {
860 <            Thread.sleep(timeoutMillis);
861 <        } catch (InterruptedException wakeup) {}
860 >            delay(millis);
861 >        } catch (InterruptedException ie) {
862 >            AssertionFailedError afe =
863 >                new AssertionFailedError("Unexpected InterruptedException");
864 >            afe.initCause(ie);
865 >            throw afe;
866 >        }
867      }
868  
869      /**
870 <     * Returns a new started Thread running the given runnable.
870 >     * Spin-waits up to the specified number of milliseconds for the given
871 >     * thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
872 >     */
873 >    void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
874 >        long startTime = System.nanoTime();
875 >        for (;;) {
876 >            Thread.State s = thread.getState();
877 >            if (s == Thread.State.BLOCKED ||
878 >                s == Thread.State.WAITING ||
879 >                s == Thread.State.TIMED_WAITING)
880 >                return;
881 >            else if (s == Thread.State.TERMINATED)
882 >                fail("Unexpected thread termination");
883 >            else if (millisElapsedSince(startTime) > timeoutMillis) {
884 >                threadAssertTrue(thread.isAlive());
885 >                return;
886 >            }
887 >            Thread.yield();
888 >        }
889 >    }
890 >
891 >    /**
892 >     * Waits up to LONG_DELAY_MS for the given thread to enter a wait
893 >     * state: BLOCKED, WAITING, or TIMED_WAITING.
894 >     */
895 >    void waitForThreadToEnterWaitState(Thread thread) {
896 >        waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
897 >    }
898 >
899 >    /**
900 >     * Returns the number of milliseconds since time given by
901 >     * startNanoTime, which must have been previously returned from a
902 >     * call to {@link System.nanoTime()}.
903 >     */
904 >    long millisElapsedSince(long startNanoTime) {
905 >        return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
906 >    }
907 >
908 >    /**
909 >     * Returns a new started daemon Thread running the given runnable.
910       */
911      Thread newStartedThread(Runnable runnable) {
912          Thread t = new Thread(runnable);
913 +        t.setDaemon(true);
914          t.start();
915          return t;
916      }
917  
918 +    /**
919 +     * Waits for the specified time (in milliseconds) for the thread
920 +     * to terminate (using {@link Thread#join(long)}), else interrupts
921 +     * the thread (in the hope that it may terminate later) and fails.
922 +     */
923 +    void awaitTermination(Thread t, long timeoutMillis) {
924 +        try {
925 +            t.join(timeoutMillis);
926 +        } catch (InterruptedException ie) {
927 +            threadUnexpectedException(ie);
928 +        } finally {
929 +            if (t.getState() != Thread.State.TERMINATED) {
930 +                t.interrupt();
931 +                fail("Test timed out");
932 +            }
933 +        }
934 +    }
935 +
936 +    /**
937 +     * Waits for LONG_DELAY_MS milliseconds for the thread to
938 +     * terminate (using {@link Thread#join(long)}), else interrupts
939 +     * the thread (in the hope that it may terminate later) and fails.
940 +     */
941 +    void awaitTermination(Thread t) {
942 +        awaitTermination(t, LONG_DELAY_MS);
943 +    }
944 +
945      // Some convenient Runnable classes
946  
947      public abstract class CheckedRunnable implements Runnable {
# Line 491 | Line 1004 | public class JSR166TestCase extends Test
1004                  realRun();
1005                  threadShouldThrow("InterruptedException");
1006              } catch (InterruptedException success) {
1007 +                threadAssertFalse(Thread.interrupted());
1008              } catch (Throwable t) {
1009                  threadUnexpectedException(t);
1010              }
# Line 505 | Line 1019 | public class JSR166TestCase extends Test
1019                  return realCall();
1020              } catch (Throwable t) {
1021                  threadUnexpectedException(t);
1022 +                return null;
1023              }
509            return null;
1024          }
1025      }
1026  
1027 <    public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1027 >    public abstract class CheckedInterruptedCallable<T>
1028 >        implements Callable<T> {
1029          protected abstract T realCall() throws Throwable;
1030  
1031          public final T call() {
# Line 519 | Line 1034 | public class JSR166TestCase extends Test
1034                  threadShouldThrow("InterruptedException");
1035                  return result;
1036              } catch (InterruptedException success) {
1037 +                threadAssertFalse(Thread.interrupted());
1038              } catch (Throwable t) {
1039                  threadUnexpectedException(t);
1040              }
# Line 540 | Line 1056 | public class JSR166TestCase extends Test
1056          public String call() { return TEST_STRING; }
1057      }
1058  
1059 +    public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1060 +        return new CheckedCallable<String>() {
1061 +            protected String realCall() {
1062 +                try {
1063 +                    latch.await();
1064 +                } catch (InterruptedException quittingTime) {}
1065 +                return TEST_STRING;
1066 +            }};
1067 +    }
1068 +
1069 +    public Runnable awaiter(final CountDownLatch latch) {
1070 +        return new CheckedRunnable() {
1071 +            public void realRun() throws InterruptedException {
1072 +                await(latch);
1073 +            }};
1074 +    }
1075 +
1076 +    public void await(CountDownLatch latch) {
1077 +        try {
1078 +            assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1079 +        } catch (Throwable t) {
1080 +            threadUnexpectedException(t);
1081 +        }
1082 +    }
1083 +
1084 +    public void await(Semaphore semaphore) {
1085 +        try {
1086 +            assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1087 +        } catch (Throwable t) {
1088 +            threadUnexpectedException(t);
1089 +        }
1090 +    }
1091 +
1092 + //     /**
1093 + //      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1094 + //      */
1095 + //     public void await(AtomicBoolean flag) {
1096 + //         await(flag, LONG_DELAY_MS);
1097 + //     }
1098 +
1099 + //     /**
1100 + //      * Spin-waits up to the specified timeout until flag becomes true.
1101 + //      */
1102 + //     public void await(AtomicBoolean flag, long timeoutMillis) {
1103 + //         long startTime = System.nanoTime();
1104 + //         while (!flag.get()) {
1105 + //             if (millisElapsedSince(startTime) > timeoutMillis)
1106 + //                 throw new AssertionFailedError("timed out");
1107 + //             Thread.yield();
1108 + //         }
1109 + //     }
1110 +
1111      public static class NPETask implements Callable<String> {
1112          public String call() { throw new NullPointerException(); }
1113      }
# Line 550 | Line 1118 | public class JSR166TestCase extends Test
1118  
1119      public class ShortRunnable extends CheckedRunnable {
1120          protected void realRun() throws Throwable {
1121 <            Thread.sleep(SHORT_DELAY_MS);
1121 >            delay(SHORT_DELAY_MS);
1122          }
1123      }
1124  
1125      public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1126          protected void realRun() throws InterruptedException {
1127 <            Thread.sleep(SHORT_DELAY_MS);
1127 >            delay(SHORT_DELAY_MS);
1128          }
1129      }
1130  
1131      public class SmallRunnable extends CheckedRunnable {
1132          protected void realRun() throws Throwable {
1133 <            Thread.sleep(SMALL_DELAY_MS);
1133 >            delay(SMALL_DELAY_MS);
1134          }
1135      }
1136  
1137      public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1138          protected void realRun() {
1139              try {
1140 <                Thread.sleep(SMALL_DELAY_MS);
1140 >                delay(SMALL_DELAY_MS);
1141              } catch (InterruptedException ok) {}
1142          }
1143      }
1144  
1145      public class SmallCallable extends CheckedCallable {
1146          protected Object realCall() throws InterruptedException {
1147 <            Thread.sleep(SMALL_DELAY_MS);
1147 >            delay(SMALL_DELAY_MS);
1148              return Boolean.TRUE;
1149          }
1150      }
1151  
584    public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
585        protected void realRun() throws InterruptedException {
586            Thread.sleep(SMALL_DELAY_MS);
587        }
588    }
589
1152      public class MediumRunnable extends CheckedRunnable {
1153          protected void realRun() throws Throwable {
1154 <            Thread.sleep(MEDIUM_DELAY_MS);
1154 >            delay(MEDIUM_DELAY_MS);
1155          }
1156      }
1157  
1158      public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1159          protected void realRun() throws InterruptedException {
1160 <            Thread.sleep(MEDIUM_DELAY_MS);
1160 >            delay(MEDIUM_DELAY_MS);
1161          }
1162      }
1163  
1164 +    public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1165 +        return new CheckedRunnable() {
1166 +            protected void realRun() {
1167 +                try {
1168 +                    delay(timeoutMillis);
1169 +                } catch (InterruptedException ok) {}
1170 +            }};
1171 +    }
1172 +
1173      public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1174          protected void realRun() {
1175              try {
1176 <                Thread.sleep(MEDIUM_DELAY_MS);
1176 >                delay(MEDIUM_DELAY_MS);
1177              } catch (InterruptedException ok) {}
1178          }
1179      }
# Line 610 | Line 1181 | public class JSR166TestCase extends Test
1181      public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1182          protected void realRun() {
1183              try {
1184 <                Thread.sleep(LONG_DELAY_MS);
1184 >                delay(LONG_DELAY_MS);
1185              } catch (InterruptedException ok) {}
1186          }
1187      }
# Line 624 | Line 1195 | public class JSR166TestCase extends Test
1195          }
1196      }
1197  
1198 +    public interface TrackedRunnable extends Runnable {
1199 +        boolean isDone();
1200 +    }
1201 +
1202 +    public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1203 +        return new TrackedRunnable() {
1204 +                private volatile boolean done = false;
1205 +                public boolean isDone() { return done; }
1206 +                public void run() {
1207 +                    try {
1208 +                        delay(timeoutMillis);
1209 +                        done = true;
1210 +                    } catch (InterruptedException ok) {}
1211 +                }
1212 +            };
1213 +    }
1214 +
1215      public static class TrackedShortRunnable implements Runnable {
1216          public volatile boolean done = false;
1217          public void run() {
1218              try {
1219 <                Thread.sleep(SMALL_DELAY_MS);
1219 >                delay(SHORT_DELAY_MS);
1220 >                done = true;
1221 >            } catch (InterruptedException ok) {}
1222 >        }
1223 >    }
1224 >
1225 >    public static class TrackedSmallRunnable implements Runnable {
1226 >        public volatile boolean done = false;
1227 >        public void run() {
1228 >            try {
1229 >                delay(SMALL_DELAY_MS);
1230                  done = true;
1231              } catch (InterruptedException ok) {}
1232          }
# Line 638 | Line 1236 | public class JSR166TestCase extends Test
1236          public volatile boolean done = false;
1237          public void run() {
1238              try {
1239 <                Thread.sleep(MEDIUM_DELAY_MS);
1239 >                delay(MEDIUM_DELAY_MS);
1240                  done = true;
1241              } catch (InterruptedException ok) {}
1242          }
# Line 648 | Line 1246 | public class JSR166TestCase extends Test
1246          public volatile boolean done = false;
1247          public void run() {
1248              try {
1249 <                Thread.sleep(LONG_DELAY_MS);
1249 >                delay(LONG_DELAY_MS);
1250                  done = true;
1251              } catch (InterruptedException ok) {}
1252          }
# Line 665 | Line 1263 | public class JSR166TestCase extends Test
1263          public volatile boolean done = false;
1264          public Object call() {
1265              try {
1266 <                Thread.sleep(SMALL_DELAY_MS);
1266 >                delay(SMALL_DELAY_MS);
1267                  done = true;
1268              } catch (InterruptedException ok) {}
1269              return Boolean.TRUE;
1270          }
1271      }
1272  
1273 +    /**
1274 +     * Analog of CheckedRunnable for RecursiveAction
1275 +     */
1276 +    public abstract class CheckedRecursiveAction extends RecursiveAction {
1277 +        protected abstract void realCompute() throws Throwable;
1278 +
1279 +        @Override protected final void compute() {
1280 +            try {
1281 +                realCompute();
1282 +            } catch (Throwable t) {
1283 +                threadUnexpectedException(t);
1284 +            }
1285 +        }
1286 +    }
1287 +
1288 +    /**
1289 +     * Analog of CheckedCallable for RecursiveTask
1290 +     */
1291 +    public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1292 +        protected abstract T realCompute() throws Throwable;
1293 +
1294 +        @Override protected final T compute() {
1295 +            try {
1296 +                return realCompute();
1297 +            } catch (Throwable t) {
1298 +                threadUnexpectedException(t);
1299 +                return null;
1300 +            }
1301 +        }
1302 +    }
1303  
1304      /**
1305       * For use as RejectedExecutionHandler in constructors
# Line 681 | Line 1309 | public class JSR166TestCase extends Test
1309                                        ThreadPoolExecutor executor) {}
1310      }
1311  
1312 +    /**
1313 +     * A CyclicBarrier that uses timed await and fails with
1314 +     * AssertionFailedErrors instead of throwing checked exceptions.
1315 +     */
1316 +    public class CheckedBarrier extends CyclicBarrier {
1317 +        public CheckedBarrier(int parties) { super(parties); }
1318 +
1319 +        public int await() {
1320 +            try {
1321 +                return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1322 +            } catch (TimeoutException e) {
1323 +                throw new AssertionFailedError("timed out");
1324 +            } catch (Exception e) {
1325 +                AssertionFailedError afe =
1326 +                    new AssertionFailedError("Unexpected exception: " + e);
1327 +                afe.initCause(e);
1328 +                throw afe;
1329 +            }
1330 +        }
1331 +    }
1332 +
1333 +    void checkEmpty(BlockingQueue q) {
1334 +        try {
1335 +            assertTrue(q.isEmpty());
1336 +            assertEquals(0, q.size());
1337 +            assertNull(q.peek());
1338 +            assertNull(q.poll());
1339 +            assertNull(q.poll(0, MILLISECONDS));
1340 +            assertEquals(q.toString(), "[]");
1341 +            assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1342 +            assertFalse(q.iterator().hasNext());
1343 +            try {
1344 +                q.element();
1345 +                shouldThrow();
1346 +            } catch (NoSuchElementException success) {}
1347 +            try {
1348 +                q.iterator().next();
1349 +                shouldThrow();
1350 +            } catch (NoSuchElementException success) {}
1351 +            try {
1352 +                q.remove();
1353 +                shouldThrow();
1354 +            } catch (NoSuchElementException success) {}
1355 +        } catch (InterruptedException ie) {
1356 +            threadUnexpectedException(ie);
1357 +        }
1358 +    }
1359 +
1360 +    void assertSerialEquals(Object x, Object y) {
1361 +        assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1362 +    }
1363 +
1364 +    void assertNotSerialEquals(Object x, Object y) {
1365 +        assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1366 +    }
1367 +
1368 +    byte[] serialBytes(Object o) {
1369 +        try {
1370 +            ByteArrayOutputStream bos = new ByteArrayOutputStream();
1371 +            ObjectOutputStream oos = new ObjectOutputStream(bos);
1372 +            oos.writeObject(o);
1373 +            oos.flush();
1374 +            oos.close();
1375 +            return bos.toByteArray();
1376 +        } catch (Throwable t) {
1377 +            threadUnexpectedException(t);
1378 +            return new byte[0];
1379 +        }
1380 +    }
1381 +
1382 +    @SuppressWarnings("unchecked")
1383 +    <T> T serialClone(T o) {
1384 +        try {
1385 +            ObjectInputStream ois = new ObjectInputStream
1386 +                (new ByteArrayInputStream(serialBytes(o)));
1387 +            T clone = (T) ois.readObject();
1388 +            assertSame(o.getClass(), clone.getClass());
1389 +            return clone;
1390 +        } catch (Throwable t) {
1391 +            threadUnexpectedException(t);
1392 +            return null;
1393 +        }
1394 +    }
1395 +
1396 +    public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1397 +                             Runnable... throwingActions) {
1398 +        for (Runnable throwingAction : throwingActions) {
1399 +            boolean threw = false;
1400 +            try { throwingAction.run(); }
1401 +            catch (Throwable t) {
1402 +                threw = true;
1403 +                if (!expectedExceptionClass.isInstance(t)) {
1404 +                    AssertionFailedError afe =
1405 +                        new AssertionFailedError
1406 +                        ("Expected " + expectedExceptionClass.getName() +
1407 +                         ", got " + t.getClass().getName());
1408 +                    afe.initCause(t);
1409 +                    threadUnexpectedException(afe);
1410 +                }
1411 +            }
1412 +            if (!threw)
1413 +                shouldThrow(expectedExceptionClass.getName());
1414 +        }
1415 +    }
1416   }

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