[ViewVC] Diff of: jsr166/jsr166/src/test/tck/JSR166TestCase.java

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.5 by dl, Fri Sep 26 15:33:13 2003 UTC vs.
Revision 1.120 by jsr166, Wed Jun 25 15:32:10 2014 UTC

+/*
-<
+ * Written by members of JCP JSR-166 Expert Group and released to the
-<
+ * public domain. Use, modify, and redistribute this code in any way
-<
+ * without acknowledgement. Other contributors include Andrew Wright,
-<
+ * Jeffrey Hayes, Pat Fischer, Mike Judd.
->
+ * Written by Doug Lea with assistance from members of JCP JSR-166
->
+ * Expert Group and released to the public domain, as explained at
->
+ * http://creativecommons.org/publicdomain/zero/1.0/
->
+ * Other contributors include Andrew Wright, Jeffrey Hayes,
->
+ * Pat Fisher, Mike Judd.
+ */
+import junit.framework.*;
-<
+import java.util.*;
->
+import java.io.ByteArrayInputStream;
->
+import java.io.ByteArrayOutputStream;
->
+import java.io.ObjectInputStream;
->
+import java.io.ObjectOutputStream;
->
+import java.lang.management.ManagementFactory;
->
+import java.lang.management.ThreadInfo;
->
+import java.lang.reflect.Method;
->
+import java.util.ArrayList;
->
+import java.util.Arrays;
->
+import java.util.Date;
->
+import java.util.Enumeration;
->
+import java.util.List;
->
+import java.util.NoSuchElementException;
->
+import java.util.PropertyPermission;
+import java.util.concurrent.*;
-<
+import java.io.*;
-<
->
+import java.util.concurrent.atomic.AtomicBoolean;
->
+import java.util.concurrent.atomic.AtomicReference;
->
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
->
+import static java.util.concurrent.TimeUnit.NANOSECONDS;
->
+import java.util.regex.Pattern;
->
+import java.security.CodeSource;
->
+import java.security.Permission;
->
+import java.security.PermissionCollection;
->
+import java.security.Permissions;
->
+import java.security.Policy;
->
+import java.security.ProtectionDomain;
->
+import java.security.SecurityPermission;
+/**
+ * Base class for JSR166 Junit TCK tests.  Defines some constants,
+ * utility methods and classes, as well as a simple framework for
+ * helping to make sure that assertions failing in generated threads
+ * cause the associated test that generated them to itself fail (which
-<
+ * JUnit doe not otherwise arrange).  The rules for creating such
->
+ * JUnit does not otherwise arrange).  The rules for creating such
+ * tests are:
+ * <ol>
+ * <li> All assertions in code running in generated threads must use
-<
+ * the forms {@link threadFail} , {@link threadAssertTrue} {@link
-<
+ * threadAssertEquals}, or {@link threadAssertNull}, (not
-<
+ * <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
->
+ * the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
->
+ * #threadAssertEquals}, or {@link #threadAssertNull}, (not
->
+ * {@code fail}, {@code assertTrue}, etc.) It is OK (but not
+ * particularly recommended) for other code to use these forms too.
+ * Only the most typically used JUnit assertion methods are defined
+ * this way, but enough to live with.</li>
-<
+ * <li> If you override {@link setUp} or {@link tearDown}, make sure
-<
+ * to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
->
+ * <li> If you override {@link #setUp} or {@link #tearDown}, make sure
->
+ * to invoke {@code super.setUp} and {@code super.tearDown} within
+ * them. These methods are used to clear and check for thread
+ * assertion failures.</li>
-<
+ * <li>All delays and timeouts must use one of the constants {@link
-<
+ * SHORT_DELAY_MS}, {@link SMALL_DELAY_MS}, {@link MEDIUM_DELAY_MS},
-<
+ * {@link LONG_DELAY_MS}. The idea here is that a SHORT is always
->
+ * <li>All delays and timeouts must use one of the constants {@code
->
+ * SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
->
+ * {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
+ * discriminable from zero time, and always allows enough time for the
+ * small amounts of computation (creating a thread, calling a few
+ * methods, etc) needed to reach a timeout point. Similarly, a SMALL
+ * is always discriminable as larger than SHORT and smaller than
+ * MEDIUM.  And so on. These constants are set to conservative values,
+ * but even so, if there is ever any doubt, they can all be increased
-<
+ * in one spot to rerun tests on slower platforms</li>
->
+ * in one spot to rerun tests on slower platforms.</li>
+ * <li> All threads generated must be joined inside each test case
-<
+ * method (or <tt>fail</tt> to do so) before returning from the
-<
+ * method. The {@link joinPool} method can be used to do this when
->
+ * method (or {@code fail} to do so) before returning from the
->
+ * method. The {@code joinPool} method can be used to do this when
+ * using Executors.</li>
+ * </ol>
-+
+ *
-+
+ * <p><b>Other notes</b>
-+
+ * <ul>
-+
+ *
-+
+ * <li> Usually, there is one testcase method per JSR166 method
-+
+ * covering "normal" operation, and then as many exception-testing
-+
+ * methods as there are exceptions the method can throw. Sometimes
-+
+ * there are multiple tests per JSR166 method when the different
-+
+ * "normal" behaviors differ significantly. And sometimes testcases
-+
+ * cover multiple methods when they cannot be tested in
-+
+ * isolation.</li>
-+
+ *
-+
+ * <li> The documentation style for testcases is to provide as javadoc
-+
+ * a simple sentence or two describing the property that the testcase
-+
+ * method purports to test. The javadocs do not say anything about how
-+
+ * the property is tested. To find out, read the code.</li>
-+
+ *
-+
+ * <li> These tests are "conformance tests", and do not attempt to
-+
+ * test throughput, latency, scalability or other performance factors
-+
+ * (see the separate "jtreg" tests for a set intended to check these
-+
+ * for the most central aspects of functionality.) So, most tests use
-+
+ * the smallest sensible numbers of threads, collection sizes, etc
-+
+ * needed to check basic conformance.</li>
-+
+ *
-+
+ * <li>The test classes currently do not declare inclusion in
-+
+ * any particular package to simplify things for people integrating
-+
+ * them in TCK test suites.</li>
-+
+ *
-+
+ * <li> As a convenience, the {@code main} of this class (JSR166TestCase)
-+
+ * runs all JSR166 unit tests.</li>
-+
+ *
-+
+ * </ul>
+ */
+public class JSR166TestCase extends TestCase {
-+
+    private static final boolean useSecurityManager =
-+
+        Boolean.getBoolean("jsr166.useSecurityManager");
-+
-+
+    protected static final boolean expensiveTests =
-+
+        Boolean.getBoolean("jsr166.expensiveTests");
-+
-+
+    /**
-+
+     * If true, also run tests that are not part of the official tck
-+
+     * because they test unspecified implementation details.
-+
+     */
-+
+    protected static final boolean testImplementationDetails =
-+
+        Boolean.getBoolean("jsr166.testImplementationDetails");
-+
-+
+    /**
-+
+     * If true, report on stdout all "slow" tests, that is, ones that
-+
+     * take more than profileThreshold milliseconds to execute.
-+
+     */
-+
+    private static final boolean profileTests =
-+
+        Boolean.getBoolean("jsr166.profileTests");
-+
-+
+    /**
-+
+     * The number of milliseconds that tests are permitted for
-+
+     * execution without being reported, when profileTests is set.
-+
+     */
-+
+    private static final long profileThreshold =
-+
+        Long.getLong("jsr166.profileThreshold", 100);
-+
-+
+    /**
-+
+     * The number of repetitions per test (for tickling rare bugs).
-+
+     */
-+
+    private static final int runsPerTest =
-+
+        Integer.getInteger("jsr166.runsPerTest", 1);
-+
-+
+    /**
-+
+     * A filter for tests to run, matching strings of the form
-+
+     * methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
-+
+     * Usefully combined with jsr166.runsPerTest.
-+
+     */
-+
+    private static final Pattern methodFilter = methodFilter();
-+
-+
+    private static Pattern methodFilter() {
-+
+        String regex = System.getProperty("jsr166.methodFilter");
-+
+        return (regex == null) ? null : Pattern.compile(regex);
-+
+    }
-+
-+
+    protected void runTest() throws Throwable {
-+
+        if (methodFilter == null
-+
+            || methodFilter.matcher(toString()).find()) {
-+
+            for (int i = 0; i < runsPerTest; i++) {
-+
+                if (profileTests)
-+
+                    runTestProfiled();
-+
+                else
-+
+                    super.runTest();
-+
+            }
-+
+        }
-+
+    }
-+
-+
+    protected void runTestProfiled() throws Throwable {
-+
+        // Warmup run, notably to trigger all needed classloading.
-+
+        super.runTest();
-+
+        long t0 = System.nanoTime();
-+
+        try {
-+
+            super.runTest();
-+
+        } finally {
-+
+            long elapsedMillis = millisElapsedSince(t0);
-+
+            if (elapsedMillis >= profileThreshold)
-+
+                System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
-+
+        }
-+
+    }
-+
-+
+    /**
-+
+     * Runs all JSR166 unit tests using junit.textui.TestRunner.
-+
+     * Optional command line arg provides the number of iterations to
-+
+     * repeat running the tests.
-+
+     */
-+
+    public static void main(String[] args) {
-+
+        if (useSecurityManager) {
-+
+            System.err.println("Setting a permissive security manager");
-+
+            Policy.setPolicy(permissivePolicy());
-+
+            System.setSecurityManager(new SecurityManager());
-+
+        }
-+
+        int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
-+
-+
+        Test s = suite();
-+
+        for (int i = 0; i < iters; ++i) {
-+
+            junit.textui.TestRunner.run(s);
-+
+            System.gc();
-+
+            System.runFinalization();
-+
+        }
-+
+        System.exit(0);
-+
+    }
-+
-+
+    public static TestSuite newTestSuite(Object... suiteOrClasses) {
-+
+        TestSuite suite = new TestSuite();
-+
+        for (Object suiteOrClass : suiteOrClasses) {
-+
+            if (suiteOrClass instanceof TestSuite)
-+
+                suite.addTest((TestSuite) suiteOrClass);
-+
+            else if (suiteOrClass instanceof Class)
-+
+                suite.addTest(new TestSuite((Class<?>) suiteOrClass));
-+
+            else
-+
+                throw new ClassCastException("not a test suite or class");
-+
+        }
-+
+        return suite;
-+
+    }
-+
-+
+    public static void addNamedTestClasses(TestSuite suite,
-+
+                                           String... testClassNames) {
-+
+        for (String testClassName : testClassNames) {
-+
+            try {
-+
+                Class<?> testClass = Class.forName(testClassName);
-+
+                Method m = testClass.getDeclaredMethod("suite",
-+
+                                                       new Class<?>[0]);
-+
+                suite.addTest(newTestSuite((Test)m.invoke(null)));
-+
+            } catch (Exception e) {
-+
+                throw new Error("Missing test class", e);
-+
+            }
-+
+        }
-+
+    }
-+
-+
+    public static final double JAVA_CLASS_VERSION;
-+
+    public static final String JAVA_SPECIFICATION_VERSION;
-+
+    static {
-+
+        try {
-+
+            JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
-+
+                new java.security.PrivilegedAction<Double>() {
-+
+                public Double run() {
-+
+                    return Double.valueOf(System.getProperty("java.class.version"));}});
-+
+            JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
-+
+                new java.security.PrivilegedAction<String>() {
-+
+                public String run() {
-+
+                    return System.getProperty("java.specification.version");}});
-+
+        } catch (Throwable t) {
-+
+            throw new Error(t);
-+
+        }
-+
+    }
-+
-+
+    public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
-+
+    public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
-+
+    public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
-+
+    public static boolean atLeastJava9() {
-+
+        // As of 2014-05, java9 still uses 52.0 class file version
-+
+        return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
-+
+    }
-+
-+
+    /**
-+
+     * Collects all JSR166 unit tests as one suite.
-+
+     */
-+
+    public static Test suite() {
-+
+        // Java7+ test classes
-+
+        TestSuite suite = newTestSuite(
-+
+            ForkJoinPoolTest.suite(),
-+
+            ForkJoinTaskTest.suite(),
-+
+            RecursiveActionTest.suite(),
-+
+            RecursiveTaskTest.suite(),
-+
+            LinkedTransferQueueTest.suite(),
-+
+            PhaserTest.suite(),
-+
+            ThreadLocalRandomTest.suite(),
-+
+            AbstractExecutorServiceTest.suite(),
-+
+            AbstractQueueTest.suite(),
-+
+            AbstractQueuedSynchronizerTest.suite(),
-+
+            AbstractQueuedLongSynchronizerTest.suite(),
-+
+            ArrayBlockingQueueTest.suite(),
-+
+            ArrayDequeTest.suite(),
-+
+            AtomicBooleanTest.suite(),
-+
+            AtomicIntegerArrayTest.suite(),
-+
+            AtomicIntegerFieldUpdaterTest.suite(),
-+
+            AtomicIntegerTest.suite(),
-+
+            AtomicLongArrayTest.suite(),
-+
+            AtomicLongFieldUpdaterTest.suite(),
-+
+            AtomicLongTest.suite(),
-+
+            AtomicMarkableReferenceTest.suite(),
-+
+            AtomicReferenceArrayTest.suite(),
-+
+            AtomicReferenceFieldUpdaterTest.suite(),
-+
+            AtomicReferenceTest.suite(),
-+
+            AtomicStampedReferenceTest.suite(),
-+
+            ConcurrentHashMapTest.suite(),
-+
+            ConcurrentLinkedDequeTest.suite(),
-+
+            ConcurrentLinkedQueueTest.suite(),
-+
+            ConcurrentSkipListMapTest.suite(),
-+
+            ConcurrentSkipListSubMapTest.suite(),
-+
+            ConcurrentSkipListSetTest.suite(),
-+
+            ConcurrentSkipListSubSetTest.suite(),
-+
+            CopyOnWriteArrayListTest.suite(),
-+
+            CopyOnWriteArraySetTest.suite(),
-+
+            CountDownLatchTest.suite(),
-+
+            CyclicBarrierTest.suite(),
-+
+            DelayQueueTest.suite(),
-+
+            EntryTest.suite(),
-+
+            ExchangerTest.suite(),
-+
+            ExecutorsTest.suite(),
-+
+            ExecutorCompletionServiceTest.suite(),
-+
+            FutureTaskTest.suite(),
-+
+            LinkedBlockingDequeTest.suite(),
-+
+            LinkedBlockingQueueTest.suite(),
-+
+            LinkedListTest.suite(),
-+
+            LockSupportTest.suite(),
-+
+            PriorityBlockingQueueTest.suite(),
-+
+            PriorityQueueTest.suite(),
-+
+            ReentrantLockTest.suite(),
-+
+            ReentrantReadWriteLockTest.suite(),
-+
+            ScheduledExecutorTest.suite(),
-+
+            ScheduledExecutorSubclassTest.suite(),
-+
+            SemaphoreTest.suite(),
-+
+            SynchronousQueueTest.suite(),
-+
+            SystemTest.suite(),
-+
+            ThreadLocalTest.suite(),
-+
+            ThreadPoolExecutorTest.suite(),
-+
+            ThreadPoolExecutorSubclassTest.suite(),
-+
+            ThreadTest.suite(),
-+
+            TimeUnitTest.suite(),
-+
+            TreeMapTest.suite(),
-+
+            TreeSetTest.suite(),
-+
+            TreeSubMapTest.suite(),
-+
+            TreeSubSetTest.suite());
-+
-+
+        // Java8+ test classes
-+
+        if (atLeastJava8()) {
-+
+            String[] java8TestClassNames = {
-+
+                "Atomic8Test",
-+
+                "CompletableFutureTest",
-+
+                "ConcurrentHashMap8Test",
-+
+                "CountedCompleterTest",
-+
+                "DoubleAccumulatorTest",
-+
+                "DoubleAdderTest",
-+
+                "ForkJoinPool8Test",
-+
+                "ForkJoinTask8Test",
-+
+                "LongAccumulatorTest",
-+
+                "LongAdderTest",
-+
+                "SplittableRandomTest",
-+
+                "StampedLockTest",
-+
+                "ThreadLocalRandom8Test",
-+
+            };
-+
+            addNamedTestClasses(suite, java8TestClassNames);
-+
+        }
-+
-+
+        // Java9+ test classes
-+
+        if (atLeastJava9()) {
-+
+            String[] java9TestClassNames = {
-+
+                "ThreadPoolExecutor9Test",
-+
+            };
-+
+            addNamedTestClasses(suite, java9TestClassNames);
-+
+        }
-+
-+
+        return suite;
-+
+    }
-+
-+
+    // Delays for timing-dependent tests, in milliseconds.
+    public static long SHORT_DELAY_MS;
+    public static long SMALL_DELAY_MS;
+    public static long MEDIUM_DELAY_MS;
+    public static long LONG_DELAY_MS;
-–
+    /**
-<
+     * Return the shortest timed delay. This could
-<
+     * be reimplmented to use for example a Property.
-<
+     */
->
+     * Returns the shortest timed delay. This could
->
+     * be reimplemented to use for example a Property.
->
+     */
+    protected long getShortDelay() {
-<
+        return 100;
->
+        return 50;
-–
+    /**
-<
+     * Set delays as multiples of SHORT_DELAY.
->
+     * Sets delays as multiples of SHORT_DELAY.
+     */
-<
+    protected  void setDelays() {
->
+    protected void setDelays() {
+        SHORT_DELAY_MS = getShortDelay();
-<
+        SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
->
+        SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
+        MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
-<
+        LONG_DELAY_MS = SHORT_DELAY_MS * 50;
->
+        LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
+    /**
-<
+     * Flag set true if any threadAssert methods fail
->
+     * Returns a timeout in milliseconds to be used in tests that
->
+     * verify that operations block or time out.
+     */
-<
+    volatile boolean threadFailed;
->
+    long timeoutMillis() {
->
+        return SHORT_DELAY_MS / 4;
->
+    }
+    /**
-<
+     * Initialize test to indicate that no thread assertions have failed
->
+     * Returns a new Date instance representing a time delayMillis
->
+     * milliseconds in the future.
+     */
-<
+    public void setUp() {
->
+    Date delayedDate(long delayMillis) {
->
+        return new Date(System.currentTimeMillis() + delayMillis);
->
+    }
->
->
+    /**
->
+     * The first exception encountered if any threadAssertXXX method fails.
->
+     */
->
+    private final AtomicReference<Throwable> threadFailure
->
+        = new AtomicReference<Throwable>(null);
->
->
+    /**
->
+     * Records an exception so that it can be rethrown later in the test
->
+     * harness thread, triggering a test case failure.  Only the first
->
+     * failure is recorded; subsequent calls to this method from within
->
+     * the same test have no effect.
->
+     */
->
+    public void threadRecordFailure(Throwable t) {
->
+        threadFailure.compareAndSet(null, t);
->
+    }
->
->
+    public void setUp() {
+        setDelays();
-–
+        threadFailed = false;
+    /**
-<
+     * Trigger test case failure if any thread assertions have failed
->
+     * Extra checks that get done for all test cases.
->
+     *
->
+     * Triggers test case failure if any thread assertions have failed,
->
+     * by rethrowing, in the test harness thread, any exception recorded
->
+     * earlier by threadRecordFailure.
->
+     *
->
+     * Triggers test case failure if interrupt status is set in the main thread.
+     */
-<
+    public void tearDown() {
-<
+        assertFalse(threadFailed);
->
+    public void tearDown() throws Exception {
->
+        Throwable t = threadFailure.getAndSet(null);
->
+        if (t != null) {
->
+            if (t instanceof Error)
->
+                throw (Error) t;
->
+            else if (t instanceof RuntimeException)
->
+                throw (RuntimeException) t;
->
+            else if (t instanceof Exception)
->
+                throw (Exception) t;
->
+            else {
->
+                AssertionFailedError afe =
->
+                    new AssertionFailedError(t.toString());
->
+                afe.initCause(t);
->
+                throw afe;
->
+            }
->
+        }
->
->
+        if (Thread.interrupted())
->
+            throw new AssertionFailedError("interrupt status set in main thread");
->
->
+        checkForkJoinPoolThreadLeaks();
+    /**
-<
+     * Fail, also setting status to indicate current testcase should fail
-<
+     */
->
+     * Find missing try { ... } finally { joinPool(e); }
->
+     */
->
+    void checkForkJoinPoolThreadLeaks() throws InterruptedException {
->
+        Thread[] survivors = new Thread[5];
->
+        int count = Thread.enumerate(survivors);
->
+        for (int i = 0; i < count; i++) {
->
+            Thread thread = survivors[i];
->
+            String name = thread.getName();
->
+            if (name.startsWith("ForkJoinPool-")) {
->
+                // give thread some time to terminate
->
+                thread.join(LONG_DELAY_MS);
->
+                if (!thread.isAlive()) continue;
->
+                thread.stop();
->
+                throw new AssertionFailedError
->
+                    (String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
->
+                                   toString(), name));
->
+            }
->
+        }
->
+    }
->
->
+    /**
->
+     * Just like fail(reason), but additionally recording (using
->
+     * threadRecordFailure) any AssertionFailedError thrown, so that
->
+     * the current testcase will fail.
->
+     */
+    public void threadFail(String reason) {
-<
+        threadFailed = true;
-<
+        fail(reason);
->
+        try {
->
+            fail(reason);
->
+        } catch (AssertionFailedError t) {
->
+            threadRecordFailure(t);
->
+            fail(reason);
->
+        }
+    /**
-<
+     * If expression not true, set status to indicate current testcase
-<
+     * should fail
-<
+     */
->
+     * Just like assertTrue(b), but additionally recording (using
->
+     * threadRecordFailure) any AssertionFailedError thrown, so that
->
+     * the current testcase will fail.
->
+     */
+    public void threadAssertTrue(boolean b) {
-<
+        if (!b) {
-<
+            threadFailed = true;
->
+        try {
+            assertTrue(b);
-+
+        } catch (AssertionFailedError t) {
-+
+            threadRecordFailure(t);
-+
+            throw t;
+    /**
-<
+     * If expression not false, set status to indicate current testcase
-<
+     * should fail
-<
+     */
->
+     * Just like assertFalse(b), but additionally recording (using
->
+     * threadRecordFailure) any AssertionFailedError thrown, so that
->
+     * the current testcase will fail.
->
+     */
+    public void threadAssertFalse(boolean b) {
-<
+        if (b) {
-<
+            threadFailed = true;
->
+        try {
+            assertFalse(b);
-+
+        } catch (AssertionFailedError t) {
-+
+            threadRecordFailure(t);
-+
+            throw t;
+    /**
-<
+     * If argument not null, set status to indicate current testcase
-<
+     * should fail
-<
+     */
->
+     * Just like assertNull(x), but additionally recording (using
->
+     * threadRecordFailure) any AssertionFailedError thrown, so that
->
+     * the current testcase will fail.
->
+     */
+    public void threadAssertNull(Object x) {
-<
+        if (x != null) {
-<
+            threadFailed = true;
->
+        try {
+            assertNull(x);
-+
+        } catch (AssertionFailedError t) {
-+
+            threadRecordFailure(t);
-+
+            throw t;
+    /**
-<
+     * If arguments not equal, set status to indicate current testcase
-<
+     * should fail
-<
+     */
->
+     * Just like assertEquals(x, y), but additionally recording (using
->
+     * threadRecordFailure) any AssertionFailedError thrown, so that
->
+     * the current testcase will fail.
->
+     */
+    public void threadAssertEquals(long x, long y) {
-<
+        if (x != y) {
-<
+            threadFailed = true;
->
+        try {
+            assertEquals(x, y);
-+
+        } catch (AssertionFailedError t) {
-+
+            threadRecordFailure(t);
-+
+            throw t;
+    /**
-<
+     * If arguments not equal, set status to indicate current testcase
-<
+     * should fail
-<
+     */
->
+     * Just like assertEquals(x, y), but additionally recording (using
->
+     * threadRecordFailure) any AssertionFailedError thrown, so that
->
+     * the current testcase will fail.
->
+     */
+    public void threadAssertEquals(Object x, Object y) {
-<
+        if (x != y && (x == null || !x.equals(y))) {
-<
+            threadFailed = true;
->
+        try {
+            assertEquals(x, y);
-+
+        } catch (AssertionFailedError t) {
-+
+            threadRecordFailure(t);
-+
+            throw t;
-+
+        } catch (Throwable t) {
-+
+            threadUnexpectedException(t);
-+
+        }
-+
+    }
-+
-+
+    /**
-+
+     * Just like assertSame(x, y), but additionally recording (using
-+
+     * threadRecordFailure) any AssertionFailedError thrown, so that
-+
+     * the current testcase will fail.
-+
+     */
-+
+    public void threadAssertSame(Object x, Object y) {
-+
+        try {
-+
+            assertSame(x, y);
-+
+        } catch (AssertionFailedError t) {
-+
+            threadRecordFailure(t);
-+
+            throw t;
+    /**
-<
+     * threadFail with message "should throw exception"
-<
+     */
->
+     * Calls threadFail with message "should throw exception".
->
+     */
+    public void threadShouldThrow() {
-<
+        threadFailed = true;
-<
+        fail("should throw exception");
->
+        threadFail("should throw exception");
->
+    }
->
->
+    /**
->
+     * Calls threadFail with message "should throw" + exceptionName.
->
+     */
->
+    public void threadShouldThrow(String exceptionName) {
->
+        threadFail("should throw " + exceptionName);
+    /**
-<
+     * threadFail with message "Unexpected exception"
->
+     * Records the given exception using {@link #threadRecordFailure},
->
+     * then rethrows the exception, wrapping it in an
->
+     * AssertionFailedError if necessary.
+     */
-<
+    public void threadUnexpectedException() {
-<
+        threadFailed = true;
-<
+        fail("Unexpected exception");
->
+    public void threadUnexpectedException(Throwable t) {
->
+        threadRecordFailure(t);
->
+        t.printStackTrace();
->
+        if (t instanceof RuntimeException)
->
+            throw (RuntimeException) t;
->
+        else if (t instanceof Error)
->
+            throw (Error) t;
->
+        else {
->
+            AssertionFailedError afe =
->
+                new AssertionFailedError("unexpected exception: " + t);
->
+            afe.initCause(t);
->
+            throw afe;
->
+        }
-+
+    /**
-+
+     * Delays, via Thread.sleep, for the given millisecond delay, but
-+
+     * if the sleep is shorter than specified, may re-sleep or yield
-+
+     * until time elapses.
-+
+     */
-+
+    static void delay(long millis) throws InterruptedException {
-+
+        long startTime = System.nanoTime();
-+
+        long ns = millis * 1000 * 1000;
-+
+        for (;;) {
-+
+            if (millis > 0L)
-+
+                Thread.sleep(millis);
-+
+            else // too short to sleep
-+
+                Thread.yield();
-+
+            long d = ns - (System.nanoTime() - startTime);
-+
+            if (d > 0L)
-+
+                millis = d / (1000 * 1000);
-+
+            else
-+
+                break;
-+
+        }
-+
+    }
+    /**
-<
+     * Wait out termination of a thread pool or fail doing so
->
+     * Waits out termination of a thread pool or fails doing so.
+     */
-<
+    public void joinPool(ExecutorService exec) {
->
+    void joinPool(ExecutorService exec) {
+        try {
+            exec.shutdown();
-<
+            assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
-<
+        } catch(InterruptedException ie) {
-<
+            fail("Unexpected exception");
->
+            assertTrue("ExecutorService did not terminate in a timely manner",
->
+                       exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
->
+        } catch (SecurityException ok) {
->
+            // Allowed in case test doesn't have privs
->
+        } catch (InterruptedException ie) {
->
+            fail("Unexpected InterruptedException");
-+
+    /**
-+
+     * A debugging tool to print all stack traces, as jstack does.
-+
+     */
-+
+    static void printAllStackTraces() {
-+
+        for (ThreadInfo info :
-+
+                 ManagementFactory.getThreadMXBean()
-+
+                 .dumpAllThreads(true, true))
-+
+            System.err.print(info);
-+
+    }
-+
-+
+    /**
-+
+     * Checks that thread does not terminate within the default
-+
+     * millisecond delay of {@code timeoutMillis()}.
-+
+     */
-+
+    void assertThreadStaysAlive(Thread thread) {
-+
+        assertThreadStaysAlive(thread, timeoutMillis());
-+
+    }
-+
-+
+    /**
-+
+     * Checks that thread does not terminate within the given millisecond delay.
-+
+     */
-+
+    void assertThreadStaysAlive(Thread thread, long millis) {
-+
+        try {
-+
+            // No need to optimize the failing case via Thread.join.
-+
+            delay(millis);
-+
+            assertTrue(thread.isAlive());
-+
+        } catch (InterruptedException ie) {
-+
+            fail("Unexpected InterruptedException");
-+
+        }
-+
+    }
+    /**
-<
+     * fail with message "should throw exception"
-<
+     */
->
+     * Checks that the threads do not terminate within the default
->
+     * millisecond delay of {@code timeoutMillis()}.
->
+     */
->
+    void assertThreadsStayAlive(Thread... threads) {
->
+        assertThreadsStayAlive(timeoutMillis(), threads);
->
+    }
->
->
+    /**
->
+     * Checks that the threads do not terminate within the given millisecond delay.
->
+     */
->
+    void assertThreadsStayAlive(long millis, Thread... threads) {
->
+        try {
->
+            // No need to optimize the failing case via Thread.join.
->
+            delay(millis);
->
+            for (Thread thread : threads)
->
+                assertTrue(thread.isAlive());
->
+        } catch (InterruptedException ie) {
->
+            fail("Unexpected InterruptedException");
->
+        }
->
+    }
->
->
+    /**
->
+     * Checks that future.get times out, with the default timeout of
->
+     * {@code timeoutMillis()}.
->
+     */
->
+    void assertFutureTimesOut(Future future) {
->
+        assertFutureTimesOut(future, timeoutMillis());
->
+    }
->
->
+    /**
->
+     * Checks that future.get times out, with the given millisecond timeout.
->
+     */
->
+    void assertFutureTimesOut(Future future, long timeoutMillis) {
->
+        long startTime = System.nanoTime();
->
+        try {
->
+            future.get(timeoutMillis, MILLISECONDS);
->
+            shouldThrow();
->
+        } catch (TimeoutException success) {
->
+        } catch (Exception e) {
->
+            threadUnexpectedException(e);
->
+        } finally { future.cancel(true); }
->
+        assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
->
+    }
->
->
+    /**
->
+     * Fails with message "should throw exception".
->
+     */
+    public void shouldThrow() {
+        fail("Should throw exception");
+    /**
-<
+     * fail with message "Unexpected exception"
->
+     * Fails with message "should throw " + exceptionName.
+     */
-<
+    public void unexpectedException() {
-<
+        fail("Unexpected exception");
->
+    public void shouldThrow(String exceptionName) {
->
+        fail("Should throw " + exceptionName);
-–
+    /**
+     * The number of elements to place in collections, arrays, etc.
+     */
-<
+    static final int SIZE = 20;
->
+    public static final int SIZE = 20;
+    // Some convenient Integer constants
-<
+    static final Integer zero = new Integer(0);
-<
+    static final Integer one = new Integer(1);
-<
+    static final Integer two = new Integer(2);
-<
+    static final Integer three  = new Integer(3);
-<
+    static final Integer four  = new Integer(4);
-<
+    static final Integer five  = new Integer(5);
-<
+    static final Integer six = new Integer(6);
-<
+    static final Integer seven = new Integer(7);
-<
+    static final Integer eight = new Integer(8);
-<
+    static final Integer nine = new Integer(9);
-<
+    static final Integer m1  = new Integer(-1);
-<
+    static final Integer m2  = new Integer(-2);
-<
+    static final Integer m3  = new Integer(-3);
-<
+    static final Integer m4 = new Integer(-4);
-<
+    static final Integer m5 = new Integer(-5);
-<
+    static final Integer m10 = new Integer(-10);
->
+    public static final Integer zero  = new Integer(0);
->
+    public static final Integer one   = new Integer(1);
->
+    public static final Integer two   = new Integer(2);
->
+    public static final Integer three = new Integer(3);
->
+    public static final Integer four  = new Integer(4);
->
+    public static final Integer five  = new Integer(5);
->
+    public static final Integer six   = new Integer(6);
->
+    public static final Integer seven = new Integer(7);
->
+    public static final Integer eight = new Integer(8);
->
+    public static final Integer nine  = new Integer(9);
->
+    public static final Integer m1  = new Integer(-1);
->
+    public static final Integer m2  = new Integer(-2);
->
+    public static final Integer m3  = new Integer(-3);
->
+    public static final Integer m4  = new Integer(-4);
->
+    public static final Integer m5  = new Integer(-5);
->
+    public static final Integer m6  = new Integer(-6);
->
+    public static final Integer m10 = new Integer(-10);
-+
+    /**
-+
+     * Runs Runnable r with a security policy that permits precisely
-+
+     * the specified permissions.  If there is no current security
-+
+     * manager, the runnable is run twice, both with and without a
-+
+     * security manager.  We require that any security manager permit
-+
+     * getPolicy/setPolicy.
-+
+     */
-+
+    public void runWithPermissions(Runnable r, Permission... permissions) {
-+
+        SecurityManager sm = System.getSecurityManager();
-+
+        if (sm == null) {
-+
+            r.run();
-+
+        }
-+
+        runWithSecurityManagerWithPermissions(r, permissions);
-+
+    }
-<
+    // Some convenient Runnable classes
->
+    /**
->
+     * Runs Runnable r with a security policy that permits precisely
->
+     * the specified permissions.  If there is no current security
->
+     * manager, a temporary one is set for the duration of the
->
+     * Runnable.  We require that any security manager permit
->
+     * getPolicy/setPolicy.
->
+     */
->
+    public void runWithSecurityManagerWithPermissions(Runnable r,
->
+                                                      Permission... permissions) {
->
+        SecurityManager sm = System.getSecurityManager();
->
+        if (sm == null) {
->
+            Policy savedPolicy = Policy.getPolicy();
->
+            try {
->
+                Policy.setPolicy(permissivePolicy());
->
+                System.setSecurityManager(new SecurityManager());
->
+                runWithSecurityManagerWithPermissions(r, permissions);
->
+            } finally {
->
+                System.setSecurityManager(null);
->
+                Policy.setPolicy(savedPolicy);
->
+            }
->
+        } else {
->
+            Policy savedPolicy = Policy.getPolicy();
->
+            AdjustablePolicy policy = new AdjustablePolicy(permissions);
->
+            Policy.setPolicy(policy);
-<
+    static class NoOpRunnable implements Runnable {
-<
+        public void run() {}
->
+            try {
->
+                r.run();
->
+            } finally {
->
+                policy.addPermission(new SecurityPermission("setPolicy"));
->
+                Policy.setPolicy(savedPolicy);
->
+            }
->
+        }
-<
+    static class NoOpCallable implements Callable {
-<
+        public Object call() { return Boolean.TRUE; }
->
+    /**
->
+     * Runs a runnable without any permissions.
->
+     */
->
+    public void runWithoutPermissions(Runnable r) {
->
+        runWithPermissions(r);
-<
+    class ShortRunnable implements Runnable {
-<
+        public void run() {
-<
+            try {
-<
+                Thread.sleep(SHORT_DELAY_MS);
->
+    /**
->
+     * A security policy where new permissions can be dynamically added
->
+     * or all cleared.
->
+     */
->
+    public static class AdjustablePolicy extends java.security.Policy {
->
+        Permissions perms = new Permissions();
->
+        AdjustablePolicy(Permission... permissions) {
->
+            for (Permission permission : permissions)
->
+                perms.add(permission);
->
+        }
->
+        void addPermission(Permission perm) { perms.add(perm); }
->
+        void clearPermissions() { perms = new Permissions(); }
->
+        public PermissionCollection getPermissions(CodeSource cs) {
->
+            return perms;
->
+        }
->
+        public PermissionCollection getPermissions(ProtectionDomain pd) {
->
+            return perms;
->
+        }
->
+        public boolean implies(ProtectionDomain pd, Permission p) {
->
+            return perms.implies(p);
->
+        }
->
+        public void refresh() {}
->
+        public String toString() {
->
+            List<Permission> ps = new ArrayList<Permission>();
->
+            for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
->
+                ps.add(e.nextElement());
->
+            return "AdjustablePolicy with permissions " + ps;
->
+        }
->
+    }
->
->
+    /**
->
+     * Returns a policy containing all the permissions we ever need.
->
+     */
->
+    public static Policy permissivePolicy() {
->
+        return new AdjustablePolicy
->
+            // Permissions j.u.c. needs directly
->
+            (new RuntimePermission("modifyThread"),
->
+             new RuntimePermission("getClassLoader"),
->
+             new RuntimePermission("setContextClassLoader"),
->
+             // Permissions needed to change permissions!
->
+             new SecurityPermission("getPolicy"),
->
+             new SecurityPermission("setPolicy"),
->
+             new RuntimePermission("setSecurityManager"),
->
+             // Permissions needed by the junit test harness
->
+             new RuntimePermission("accessDeclaredMembers"),
->
+             new PropertyPermission("*", "read"),
->
+             new java.io.FilePermission("<<ALL FILES>>", "read"));
->
+    }
->
->
+    /**
->
+     * Sleeps until the given time has elapsed.
->
+     * Throws AssertionFailedError if interrupted.
->
+     */
->
+    void sleep(long millis) {
->
+        try {
->
+            delay(millis);
->
+        } catch (InterruptedException ie) {
->
+            AssertionFailedError afe =
->
+                new AssertionFailedError("Unexpected InterruptedException");
->
+            afe.initCause(ie);
->
+            throw afe;
->
+        }
->
+    }
->
->
+    /**
->
+     * Spin-waits up to the specified number of milliseconds for the given
->
+     * thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
->
+     */
->
+    void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
->
+        long startTime = System.nanoTime();
->
+        for (;;) {
->
+            Thread.State s = thread.getState();
->
+            if (s == Thread.State.BLOCKED ||
->
+                s == Thread.State.WAITING ||
->
+                s == Thread.State.TIMED_WAITING)
->
+                return;
->
+            else if (s == Thread.State.TERMINATED)
->
+                fail("Unexpected thread termination");
->
+            else if (millisElapsedSince(startTime) > timeoutMillis) {
->
+                threadAssertTrue(thread.isAlive());
->
+                return;
-<
+            catch(Exception e) {
-<
+                threadUnexpectedException();
->
+            Thread.yield();
->
+        }
->
+    }
->
->
+    /**
->
+     * Waits up to LONG_DELAY_MS for the given thread to enter a wait
->
+     * state: BLOCKED, WAITING, or TIMED_WAITING.
->
+     */
->
+    void waitForThreadToEnterWaitState(Thread thread) {
->
+        waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
->
+    }
->
->
+    /**
->
+     * Returns the number of milliseconds since time given by
->
+     * startNanoTime, which must have been previously returned from a
->
+     * call to {@link System.nanoTime()}.
->
+     */
->
+    static long millisElapsedSince(long startNanoTime) {
->
+        return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
->
+    }
->
->
+//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
->
+//         long startTime = System.nanoTime();
->
+//         try {
->
+//             r.run();
->
+//         } catch (Throwable fail) { threadUnexpectedException(fail); }
->
+//         if (millisElapsedSince(startTime) > timeoutMillis/2)
->
+//             throw new AssertionFailedError("did not return promptly");
->
+//     }
->
->
+//     void assertTerminatesPromptly(Runnable r) {
->
+//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
->
+//     }
->
->
+    /**
->
+     * Checks that timed f.get() returns the expected value, and does not
->
+     * wait for the timeout to elapse before returning.
->
+     */
->
+    <T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
->
+        long startTime = System.nanoTime();
->
+        try {
->
+            assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
->
+        } catch (Throwable fail) { threadUnexpectedException(fail); }
->
+        if (millisElapsedSince(startTime) > timeoutMillis/2)
->
+            throw new AssertionFailedError("timed get did not return promptly");
->
+    }
->
->
+    <T> void checkTimedGet(Future<T> f, T expectedValue) {
->
+        checkTimedGet(f, expectedValue, LONG_DELAY_MS);
->
+    }
->
->
+    /**
->
+     * Returns a new started daemon Thread running the given runnable.
->
+     */
->
+    Thread newStartedThread(Runnable runnable) {
->
+        Thread t = new Thread(runnable);
->
+        t.setDaemon(true);
->
+        t.start();
->
+        return t;
->
+    }
->
->
+    /**
->
+     * Waits for the specified time (in milliseconds) for the thread
->
+     * to terminate (using {@link Thread#join(long)}), else interrupts
->
+     * the thread (in the hope that it may terminate later) and fails.
->
+     */
->
+    void awaitTermination(Thread t, long timeoutMillis) {
->
+        try {
->
+            t.join(timeoutMillis);
->
+        } catch (InterruptedException ie) {
->
+            threadUnexpectedException(ie);
->
+        } finally {
->
+            if (t.getState() != Thread.State.TERMINATED) {
->
+                t.interrupt();
->
+                fail("Test timed out");
-<
+    class ShortInterruptedRunnable implements Runnable {
-<
+        public void run() {
->
+    /**
->
+     * Waits for LONG_DELAY_MS milliseconds for the thread to
->
+     * terminate (using {@link Thread#join(long)}), else interrupts
->
+     * the thread (in the hope that it may terminate later) and fails.
->
+     */
->
+    void awaitTermination(Thread t) {
->
+        awaitTermination(t, LONG_DELAY_MS);
->
+    }
->
->
+    // Some convenient Runnable classes
->
->
+    public abstract class CheckedRunnable implements Runnable {
->
+        protected abstract void realRun() throws Throwable;
->
->
+        public final void run() {
+            try {
-<
+                Thread.sleep(SHORT_DELAY_MS);
-<
+                threadShouldThrow();
-<
+            }
-<
+            catch(InterruptedException success) {
->
+                realRun();
->
+            } catch (Throwable t) {
->
+                threadUnexpectedException(t);
-<
+    class SmallRunnable implements Runnable {
-<
+        public void run() {
->
+    public abstract class RunnableShouldThrow implements Runnable {
->
+        protected abstract void realRun() throws Throwable;
->
->
+        final Class<?> exceptionClass;
->
->
+        <T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
->
+            this.exceptionClass = exceptionClass;
->
+        }
->
->
+        public final void run() {
+            try {
-<
+                Thread.sleep(SMALL_DELAY_MS);
-<
+            }
-<
+            catch(Exception e) {
-<
+                threadUnexpectedException();
->
+                realRun();
->
+                threadShouldThrow(exceptionClass.getSimpleName());
->
+            } catch (Throwable t) {
->
+                if (! exceptionClass.isInstance(t))
->
+                    threadUnexpectedException(t);
-<
+    class SmallCallable implements Callable {
-<
+        public Object call() {
->
+    public abstract class ThreadShouldThrow extends Thread {
->
+        protected abstract void realRun() throws Throwable;
->
->
+        final Class<?> exceptionClass;
->
->
+        <T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
->
+            this.exceptionClass = exceptionClass;
->
+        }
->
->
+        public final void run() {
+            try {
-<
+                Thread.sleep(SMALL_DELAY_MS);
-<
+            }
-<
+            catch(Exception e) {
-<
+                threadUnexpectedException();
->
+                realRun();
->
+                threadShouldThrow(exceptionClass.getSimpleName());
->
+            } catch (Throwable t) {
->
+                if (! exceptionClass.isInstance(t))
->
+                    threadUnexpectedException(t);
-–
+            return Boolean.TRUE;
-<
+    class SmallInterruptedRunnable implements Runnable {
-<
+        public void run() {
->
+    public abstract class CheckedInterruptedRunnable implements Runnable {
->
+        protected abstract void realRun() throws Throwable;
->
->
+        public final void run() {
+            try {
-<
+                Thread.sleep(SMALL_DELAY_MS);
-<
+                threadShouldThrow();
-<
+            }
-<
+            catch(InterruptedException success) {
->
+                realRun();
->
+                threadShouldThrow("InterruptedException");
->
+            } catch (InterruptedException success) {
->
+                threadAssertFalse(Thread.interrupted());
->
+            } catch (Throwable t) {
->
+                threadUnexpectedException(t);
-+
+    public abstract class CheckedCallable<T> implements Callable<T> {
-+
+        protected abstract T realCall() throws Throwable;
-<
+    class MediumRunnable implements Runnable {
-<
+        public void run() {
->
+        public final T call() {
+            try {
-<
+                Thread.sleep(MEDIUM_DELAY_MS);
-<
+            }
-<
+            catch(Exception e) {
-<
+                threadUnexpectedException();
->
+                return realCall();
->
+            } catch (Throwable t) {
->
+                threadUnexpectedException(t);
->
+                return null;
-<
+    class MediumInterruptedRunnable implements Runnable {
-<
+        public void run() {
->
+    public abstract class CheckedInterruptedCallable<T>
->
+        implements Callable<T> {
->
+        protected abstract T realCall() throws Throwable;
->
->
+        public final T call() {
+            try {
-<
+                Thread.sleep(MEDIUM_DELAY_MS);
-<
+                threadShouldThrow();
-<
+            }
-<
+            catch(InterruptedException success) {
->
+                T result = realCall();
->
+                threadShouldThrow("InterruptedException");
->
+                return result;
->
+            } catch (InterruptedException success) {
->
+                threadAssertFalse(Thread.interrupted());
->
+            } catch (Throwable t) {
->
+                threadUnexpectedException(t);
-+
+            return null;
-<
+    class MediumPossiblyInterruptedRunnable implements Runnable {
-<
+        public void run() {
->
+    public static class NoOpRunnable implements Runnable {
->
+        public void run() {}
->
+    }
->
->
+    public static class NoOpCallable implements Callable {
->
+        public Object call() { return Boolean.TRUE; }
->
+    }
->
->
+    public static final String TEST_STRING = "a test string";
->
->
+    public static class StringTask implements Callable<String> {
->
+        public String call() { return TEST_STRING; }
->
+    }
->
->
+    public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
->
+        return new CheckedCallable<String>() {
->
+            protected String realCall() {
->
+                try {
->
+                    latch.await();
->
+                } catch (InterruptedException quittingTime) {}
->
+                return TEST_STRING;
->
+            }};
->
+    }
->
->
+    public Runnable awaiter(final CountDownLatch latch) {
->
+        return new CheckedRunnable() {
->
+            public void realRun() throws InterruptedException {
->
+                await(latch);
->
+            }};
->
+    }
->
->
+    public void await(CountDownLatch latch) {
->
+        try {
->
+            assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
->
+        } catch (Throwable t) {
->
+            threadUnexpectedException(t);
->
+        }
->
+    }
->
->
+    public void await(Semaphore semaphore) {
->
+        try {
->
+            assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
->
+        } catch (Throwable t) {
->
+            threadUnexpectedException(t);
->
+        }
->
+    }
->
->
+//     /**
->
+//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
->
+//      */
->
+//     public void await(AtomicBoolean flag) {
->
+//         await(flag, LONG_DELAY_MS);
->
+//     }
->
->
+//     /**
->
+//      * Spin-waits up to the specified timeout until flag becomes true.
->
+//      */
->
+//     public void await(AtomicBoolean flag, long timeoutMillis) {
->
+//         long startTime = System.nanoTime();
->
+//         while (!flag.get()) {
->
+//             if (millisElapsedSince(startTime) > timeoutMillis)
->
+//                 throw new AssertionFailedError("timed out");
->
+//             Thread.yield();
->
+//         }
->
+//     }
->
->
+    public static class NPETask implements Callable<String> {
->
+        public String call() { throw new NullPointerException(); }
->
+    }
->
->
+    public static class CallableOne implements Callable<Integer> {
->
+        public Integer call() { return one; }
->
+    }
->
->
+    public class ShortRunnable extends CheckedRunnable {
->
+        protected void realRun() throws Throwable {
->
+            delay(SHORT_DELAY_MS);
->
+        }
->
+    }
->
->
+    public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
->
+        protected void realRun() throws InterruptedException {
->
+            delay(SHORT_DELAY_MS);
->
+        }
->
+    }
->
->
+    public class SmallRunnable extends CheckedRunnable {
->
+        protected void realRun() throws Throwable {
->
+            delay(SMALL_DELAY_MS);
->
+        }
->
+    }
->
->
+    public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
->
+        protected void realRun() {
+            try {
-<
+                Thread.sleep(MEDIUM_DELAY_MS);
-<
+            }
-<
+            catch(InterruptedException success) {
-<
+            }
->
+                delay(SMALL_DELAY_MS);
->
+            } catch (InterruptedException ok) {}
->
+        }
->
+    }
->
->
+    public class SmallCallable extends CheckedCallable {
->
+        protected Object realCall() throws InterruptedException {
->
+            delay(SMALL_DELAY_MS);
->
+            return Boolean.TRUE;
->
+        }
->
+    }
->
->
+    public class MediumRunnable extends CheckedRunnable {
->
+        protected void realRun() throws Throwable {
->
+            delay(MEDIUM_DELAY_MS);
->
+        }
->
+    }
->
->
+    public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
->
+        protected void realRun() throws InterruptedException {
->
+            delay(MEDIUM_DELAY_MS);
->
+        }
->
+    }
->
->
+    public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
->
+        return new CheckedRunnable() {
->
+            protected void realRun() {
->
+                try {
->
+                    delay(timeoutMillis);
->
+                } catch (InterruptedException ok) {}
->
+            }};
->
+    }
->
->
+    public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
->
+        protected void realRun() {
->
+            try {
->
+                delay(MEDIUM_DELAY_MS);
->
+            } catch (InterruptedException ok) {}
->
+        }
->
+    }
->
->
+    public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
->
+        protected void realRun() {
->
+            try {
->
+                delay(LONG_DELAY_MS);
->
+            } catch (InterruptedException ok) {}
+    /**
+     * For use as ThreadFactory in constructors
+     */
-<
+    static class SimpleThreadFactory implements ThreadFactory{
-<
+        public Thread newThread(Runnable r){
->
+    public static class SimpleThreadFactory implements ThreadFactory {
->
+        public Thread newThread(Runnable r) {
+            return new Thread(r);
-<
+        }
->
+        }
-<
+    static class TrackedRunnable implements Runnable {
-<
+        volatile boolean done = false;
->
+    public interface TrackedRunnable extends Runnable {
->
+        boolean isDone();
->
+    }
->
->
+    public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
->
+        return new TrackedRunnable() {
->
+                private volatile boolean done = false;
->
+                public boolean isDone() { return done; }
->
+                public void run() {
->
+                    try {
->
+                        delay(timeoutMillis);
->
+                        done = true;
->
+                    } catch (InterruptedException ok) {}
->
+                }
->
+            };
->
+    }
->
->
+    public static class TrackedShortRunnable implements Runnable {
->
+        public volatile boolean done = false;
+        public void run() {
+            try {
-<
+                Thread.sleep(SMALL_DELAY_MS);
->
+                delay(SHORT_DELAY_MS);
+                done = true;
-<
+            } catch(Exception e){
-<
+            }
->
+            } catch (InterruptedException ok) {}
-<
+    static class TrackedCallable implements Callable {
-<
+        volatile boolean done = false;
->
+    public static class TrackedSmallRunnable implements Runnable {
->
+        public volatile boolean done = false;
->
+        public void run() {
->
+            try {
->
+                delay(SMALL_DELAY_MS);
->
+                done = true;
->
+            } catch (InterruptedException ok) {}
->
+        }
->
+    }
->
->
+    public static class TrackedMediumRunnable implements Runnable {
->
+        public volatile boolean done = false;
->
+        public void run() {
->
+            try {
->
+                delay(MEDIUM_DELAY_MS);
->
+                done = true;
->
+            } catch (InterruptedException ok) {}
->
+        }
->
+    }
->
->
+    public static class TrackedLongRunnable implements Runnable {
->
+        public volatile boolean done = false;
->
+        public void run() {
->
+            try {
->
+                delay(LONG_DELAY_MS);
->
+                done = true;
->
+            } catch (InterruptedException ok) {}
->
+        }
->
+    }
->
->
+    public static class TrackedNoOpRunnable implements Runnable {
->
+        public volatile boolean done = false;
->
+        public void run() {
->
+            done = true;
->
+        }
->
+    }
->
->
+    public static class TrackedCallable implements Callable {
->
+        public volatile boolean done = false;
+        public Object call() {
+            try {
-<
+                Thread.sleep(SMALL_DELAY_MS);
->
+                delay(SMALL_DELAY_MS);
+                done = true;
-<
+            } catch(Exception e){
-<
+            }
->
+            } catch (InterruptedException ok) {}
+            return Boolean.TRUE;
+    /**
-+
+     * Analog of CheckedRunnable for RecursiveAction
-+
+     */
-+
+    public abstract class CheckedRecursiveAction extends RecursiveAction {
-+
+        protected abstract void realCompute() throws Throwable;
-+
-+
+        @Override protected final void compute() {
-+
+            try {
-+
+                realCompute();
-+
+            } catch (Throwable t) {
-+
+                threadUnexpectedException(t);
-+
+            }
-+
+        }
-+
+    }
-+
-+
+    /**
-+
+     * Analog of CheckedCallable for RecursiveTask
-+
+     */
-+
+    public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
-+
+        protected abstract T realCompute() throws Throwable;
-+
-+
+        @Override protected final T compute() {
-+
+            try {
-+
+                return realCompute();
-+
+            } catch (Throwable t) {
-+
+                threadUnexpectedException(t);
-+
+                return null;
-+
+            }
-+
+        }
-+
+    }
-+
-+
+    /**
+     * For use as RejectedExecutionHandler in constructors
+     */
-<
+    static class NoOpREHandler implements RejectedExecutionHandler{
-<
+        public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
->
+    public static class NoOpREHandler implements RejectedExecutionHandler {
->
+        public void rejectedExecution(Runnable r,
->
+                                      ThreadPoolExecutor executor) {}
->
+    }
->
->
+    /**
->
+     * A CyclicBarrier that uses timed await and fails with
->
+     * AssertionFailedErrors instead of throwing checked exceptions.
->
+     */
->
+    public class CheckedBarrier extends CyclicBarrier {
->
+        public CheckedBarrier(int parties) { super(parties); }
->
->
+        public int await() {
->
+            try {
->
+                return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
->
+            } catch (TimeoutException e) {
->
+                throw new AssertionFailedError("timed out");
->
+            } catch (Exception e) {
->
+                AssertionFailedError afe =
->
+                    new AssertionFailedError("Unexpected exception: " + e);
->
+                afe.initCause(e);
->
+                throw afe;
->
+            }
->
+        }
->
+    }
->
->
+    void checkEmpty(BlockingQueue q) {
->
+        try {
->
+            assertTrue(q.isEmpty());
->
+            assertEquals(0, q.size());
->
+            assertNull(q.peek());
->
+            assertNull(q.poll());
->
+            assertNull(q.poll(0, MILLISECONDS));
->
+            assertEquals(q.toString(), "[]");
->
+            assertTrue(Arrays.equals(q.toArray(), new Object[0]));
->
+            assertFalse(q.iterator().hasNext());
->
+            try {
->
+                q.element();
->
+                shouldThrow();
->
+            } catch (NoSuchElementException success) {}
->
+            try {
->
+                q.iterator().next();
->
+                shouldThrow();
->
+            } catch (NoSuchElementException success) {}
->
+            try {
->
+                q.remove();
->
+                shouldThrow();
->
+            } catch (NoSuchElementException success) {}
->
+        } catch (InterruptedException ie) {
->
+            threadUnexpectedException(ie);
->
+        }
->
+    }
->
->
+    void assertSerialEquals(Object x, Object y) {
->
+        assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
->
+    }
->
->
+    void assertNotSerialEquals(Object x, Object y) {
->
+        assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
->
+    }
->
->
+    byte[] serialBytes(Object o) {
->
+        try {
->
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
->
+            ObjectOutputStream oos = new ObjectOutputStream(bos);
->
+            oos.writeObject(o);
->
+            oos.flush();
->
+            oos.close();
->
+            return bos.toByteArray();
->
+        } catch (Throwable t) {
->
+            threadUnexpectedException(t);
->
+            return new byte[0];
->
+        }
->
+    }
->
->
+    @SuppressWarnings("unchecked")
->
+    <T> T serialClone(T o) {
->
+        try {
->
+            ObjectInputStream ois = new ObjectInputStream
->
+                (new ByteArrayInputStream(serialBytes(o)));
->
+            T clone = (T) ois.readObject();
->
+            assertSame(o.getClass(), clone.getClass());
->
+            return clone;
->
+        } catch (Throwable t) {
->
+            threadUnexpectedException(t);
->
+            return null;
->
+        }
->
+    }
->
->
+    public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
->
+                             Runnable... throwingActions) {
->
+        for (Runnable throwingAction : throwingActions) {
->
+            boolean threw = false;
->
+            try { throwingAction.run(); }
->
+            catch (Throwable t) {
->
+                threw = true;
->
+                if (!expectedExceptionClass.isInstance(t)) {
->
+                    AssertionFailedError afe =
->
+                        new AssertionFailedError
->
+                        ("Expected " + expectedExceptionClass.getName() +
->
+                         ", got " + t.getClass().getName());
->
+                    afe.initCause(t);
->
+                    threadUnexpectedException(afe);
->
+                }
->
+            }
->
+            if (!threw)
->
+                shouldThrow(expectedExceptionClass.getName());
->
+        }
-–
-–

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents): Revision 1.5 by dl, Fri Sep 26 15:33:13 2003 UTC vs. Revision 1.120 by jsr166, Wed Jun 25 15:32:10 2014 UTC

Diff Legend

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.5 by dl, Fri Sep 26 15:33:13 2003 UTC vs.
Revision 1.120 by jsr166, Wed Jun 25 15:32:10 2014 UTC