assertEquals(1, Iterators.size(registry.getSubscribers(1)));

    registry.register(new IntegerSubscriber());
    assertEquals(3, Iterators.size(registry.getSubscribers("")));
    assertEquals(1, Iterators.size(registry.getSubscribers(new Object())));
    assertEquals(2, Iterators.size(registry.getSubscribers(1)));
  }

  public void testGetSubscribers_returnsImmutableSnapshot() {

    @Nullable Node<K, V> previous;
    int expectedModCount = modCount;

    NodeIterator(int index) {
      int size = size();
      checkPositionIndex(index, size);
      if (index >= (size / 2)) {
        previous = tail;
        nextIndex = size;
        while (index++ < size) {
          previous();
        }
      } else {
        next = head;
        while (index-- > 0) {
          next();

            }
        }

        return buf.toString().trim();
    }

    /**
     * Sets the maximum content size.
     * @param maxContentSize The maximum content size to set.
     */
    public void setMaxContentSize(final long maxContentSize) {
        this.maxContentSize = maxContentSize;
    }

        if (length == 0) {
            return new byte[0];
        }
        final int pad = string.charAt(length - 2) == '=' ? 2 : string.charAt(length - 1) == '=' ? 1 : 0;
        final int size = length * 3 / 4 - pad;
        final byte[] buffer = new byte[size];
        int block;
        int i = 0;
        int index = 0;
        while (i < length) {

    @CustomSize(maxKey = "form.admin.max.input.size")
    public String includedPaths;

    /**
     * The paths to exclude for this label type.
     */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String excludedPaths;

    /**
     * The permissions required to view this label type.
     */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String permissions;

    /**

    rowKeyToIndex = table.rowKeyToIndex;
    columnKeyToIndex = table.columnKeyToIndex;
    @SuppressWarnings("unchecked")
    @Nullable V[][] copy = (@Nullable V[][]) new Object[rowList.size()][columnList.size()];
    array = copy;
    for (int i = 0; i < rowList.size(); i++) {
      arraycopy(table.array[i], 0, copy[i], 0, table.array[i].length);
    }
  }

  private abstract static class ArrayMap<K, V extends @Nullable Object>

    }

    /**
     * Set the maximum pool size
     * @param size the maximum number of connections in the pool
     */
    public void setMaxPoolSize(int size) {
        if (size <= 0) {
            throw new IllegalArgumentException("Pool size must be positive");
        }
        this.maxPoolSize = size;
        log.info("Set maximum pool size to {}", size);
    }

    /**

    val rule = findMatchingRule(domainLabels)
    if (domainLabels.size == rule.size && rule[0][0] != EXCEPTION_MARKER) {
      return null // The domain is a public suffix.
    }

    val firstLabelOffset =
      if (rule[0][0] == EXCEPTION_MARKER) {
        // Exception rules hold the effective TLD plus one.
        domainLabels.size - rule.size
      } else {

     */
    @Required
    @Size(max = 200)
    public String name;

    /**
     * The description of the web configuration.
     */
    @Size(max = 1000)
    public String description;

    /**
     * The URLs to be crawled by this web configuration.
     */
    @Required
    @UriType(protocolType = ProtocolType.WEB)
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String urls;

    /**

     */
    public void setIndex(final String index) {
        this.index = index;
    }

    /**
     * Sets the size of results.
     * @param size The size.
     */
    public void setSize(final int size) {
        this.size = size;
    }

    /**
     * Sets the query string.
     * @param query The query string.
     */
    public void setQuery(final String query) {