return get(key) != null;
    }

    @Override
    public @Nullable Range<C> get(@Nullable Object key) {
      if (key instanceof Cut) {
        try {
          @SuppressWarnings("unchecked") // we catch CCEs
          Cut<C> cut = (Cut<C>) key;
          if (!upperBoundWindow.contains(cut)) {
            return null;
          }

  /**
   * Returns the empty multimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting is safe because the multimap will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableSetMultimap<K, V> of() {
    return (ImmutableSetMultimap<K, V>) EmptyImmutableSetMultimap.INSTANCE;
  }

  /** Returns an immutable multimap containing a single entry. */

    /**
     *
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#setResponse(jcifs.internal.CommonServerMessageBlockResponse)
     */
    @SuppressWarnings("unchecked")
    @Override
    public final void setResponse(final CommonServerMessageBlockResponse msg) {
        if (msg != null && !(msg instanceof ServerMessageBlock2)) {

     * @param nonce The OpenID Connect nonce parameter.
     */
    protected void storeStateInSession(final HttpSession session, final String state, final String nonce) {
        @SuppressWarnings("unchecked")
        Map<String, StateData> stateMap = (Map<String, StateData>) session.getAttribute(STATES);
        if (stateMap == null) {
            stateMap = new HashMap<>();
            session.setAttribute(STATES, stateMap);

  }

  /**
   * Returns the empty immutable multiset.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked") // all supported methods are covariant
  public static <E> ImmutableMultiset<E> of() {
    return (ImmutableMultiset<E>) RegularImmutableMultiset.EMPTY;
  }

  /**

  }

  // Pretend the comparator can compare anything. If it turns out it can't
  // compare two elements, it'll throw a CCE. Only methods that are specified to
  // throw CCE should call this.
  @SuppressWarnings("unchecked")
  Comparator<Object> unsafeComparator() {
    return (Comparator<Object>) comparator;
  }

  RegularImmutableSortedSet<E> getSubSet(int newFromIndex, int newToIndex) {

- `crawler/filter.xml`, `crawler/interval.xml`, `crawler/contentlength.xml`, `crawler/urlconverter.xml`, `crawler/container.xml`, `crawler/log.xml`

### Exception Hierarchy

All exceptions are unchecked (extend `RuntimeException` via `CrawlerSystemException`).

```
CrawlerSystemException (RuntimeException)
  ├─ CrawlingAccessException
  │     └─ MaxLengthExceededException
  ├─ ChildUrlsException

  /**
   * Returns the empty multimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting is safe because the multimap will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableSetMultimap<K, V> of() {
    return (ImmutableSetMultimap<K, V>) EmptyImmutableSetMultimap.INSTANCE;
  }

  /** Returns an immutable multimap containing a single entry. */

            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        @SuppressWarnings("unchecked")
        final Tuple5<T1, T2, T3, T4, T5> other = (Tuple5<T1, T2, T3, T4, T5>) obj;
        if (value1 == null) {
            if (other.value1 != null) {
                return false;
            }

        AtomicReference.class,
        AtomicBoolean.class,
        AtomicInteger.class,
        AtomicLong.class,
        AtomicDouble.class);
  }

  @SuppressWarnings("unchecked") // functor classes have no type parameters
  public void testGet_functors() {
    assertEquals(0, ArbitraryInstances.get(Comparator.class).compare("abc", 123));