public void testNullPointerExceptions() {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(new FakeTicker());
  }

  @GwtIncompatible // java.time.Duration
  @SuppressWarnings("Java7ApiChecker") // guava-android can rely on library desugaring now.
  public void testAdvance() {
    FakeTicker ticker = new FakeTicker();
    assertEquals(0, ticker.read());

    Iterator<Object> itr =
        new AbstractIterator<Object>() {
          @Override
          public Object computeNext() {
            return new Object();
          }
        };
    WeakReference<Object> ref = new WeakReference<>(itr.next());
    GcFinalization.awaitClear(ref);
  }

  public void testReentrantHasNext() {
    Iterator<Integer> iter =
        new AbstractIterator<Integer>() {

    Iterator<Object> itr =
        new AbstractIterator<Object>() {
          @Override
          public Object computeNext() {
            return new Object();
          }
        };
    WeakReference<Object> ref = new WeakReference<>(itr.next());
    GcFinalization.awaitClear(ref);
  }

  public void testReentrantHasNext() {
    Iterator<Integer> iter =
        new AbstractIterator<Integer>() {

    for (double x : VALUES) {
      AtomicDouble a = new AtomicDouble(x);
      assertBitEquals(x, a.get());
    }
  }

  /** default constructed initializes to zero */
  public void testConstructor2() {
    AtomicDouble a = new AtomicDouble();
    assertBitEquals(0.0, a.get());
  }

  /** get returns the last value set */
  public void testGetSet() {
    AtomicDouble at = new AtomicDouble(1.0);
    assertBitEquals(1.0, at.get());

  private final ExecutionList list = new ExecutionList();

  public void testRunOnPopulatedList() throws Exception {
    Executor exec = Executors.newCachedThreadPool();
    CountDownLatch countDownLatch = new CountDownLatch(3);
    list.add(new MockRunnable(countDownLatch), exec);
    list.add(new MockRunnable(countDownLatch), exec);
    list.add(new MockRunnable(countDownLatch), exec);

    @Test
    public void test() throws Exception {
        final ClassLoader cl1 = new URLClassLoader(new URL[] { new URL("file:/foo") }, null);
        final ClassLoader cl2 = new URLClassLoader(new URL[] { new URL("file:/bar") }, cl1);
        final ClassLoader cl3 = new URLClassLoader(new URL[] { new URL("file:/baz") }, cl2);

        final ClassLoaderIterator it = new ClassLoaderIterator(cl3);
        assertThat(it.hasNext(), is(true));

        final Date date = toDate("10/9/7");
        assertThat(new SimpleDateFormat("yyyy/MM/dd").format(date), is("2010/09/07"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToDate_MediumStyle() throws Exception {
        final Date date = toDate("2010/9/7");
        assertThat(new SimpleDateFormat("yyyy/MM/dd").format(date), is("2010/09/07"));
    }

    /**

                fields.add(new DERTaggedObject(true, 3, new DEROctetString(mechanismListMIC)));
            }
            der.writeObject(new DERTaggedObject(true, 1, new DERSequence(fields)));
            return collector.toByteArray();
        }
        catch ( IOException ex ) {
            throw new IllegalStateException(ex.getMessage());
        }
    }


    @Override

    private final Map<String, T> classes = new TreeMap<>();

    @SuppressWarnings("unchecked")
    public void load(File repoFile) {
        try {
            FileInputStream inputStream = new FileInputStream(repoFile);
            try {
                ObjectInputStream objInputStream = new ObjectInputStream(new BufferedInputStream(inputStream));
                classes.clear();

    return Arrays.asList(
        new Object[][] {
          {new MapIteratorCache<String, String>(new HashMap<String, String>())},
          {new MapIteratorCache<String, String>(new TreeMap<String, String>(nullsLast))},
          {new MapRetrievalCache<String, String>(new HashMap<String, String>())},
          {new MapRetrievalCache<String, String>(new TreeMap<String, String>(nullsLast))}
        });
  }

  @Before