@Override
    public void add(int index, E element) {
      synchronized (mutex) {
        delegate().add(index, element);
      }
    }

    @Override
    public boolean addAll(int index, Collection<? extends E> c) {
      synchronized (mutex) {
        return delegate().addAll(index, c);
      }
    }

    @Override
    public E get(int index) {
      synchronized (mutex) {

    int start = 0;
    // Iterate through the parts of the ip string.
    // Invariant: start is always the beginning of an octet.
    for (int i = 0; i < IPV4_PART_COUNT; i++) {
      int end = ipString.indexOf(IPV4_DELIMITER, start);
      if (end == -1) {
        end = ipString.length();
      }
      try {
        bytes[i] = parseOctet(ipString, start, end);
      } catch (NumberFormatException ex) {

.filter(item => $(item).is(':visible'))\n\n    if (items.length === 0) {\n      return\n    }\n\n    let index = items.indexOf(event.target)\n\n    if (event.which === ARROW_UP_KEYCODE && index > 0) { // Up\n      index--\n    }\n\n    if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) { // Down\n      index++\n    }\n\n    if (index < 0) {\n      index = 0\n    }\n\n    items[index].focus()\n  }\n}\n\n/**\n * Data API implementation\n */\n\n$(document)\n  .on(EVENT_KEYDOWN_DATA_API,...

        }
    }

    protected void addGroupOrRoleName(final List<String> list, final String value, final boolean useDomainServices) {
        list.add(value);
        if (useDomainServices && value.indexOf('@') >= 0) {
            final String[] values = value.split("@");
            if (values.length > 1) {
                list.add(values[0]);
            }
        }
    }

         * of the array becomes null only when we iterate past it and then clear it.
         */
        I result = requireNonNull(elements[index]);
        elements[index] = null;
        index++;
        return result;
      }
    };
  }

  /**
   * Combines two iterators into a single iterator. The returned iterator iterates across the

     * check on the loaded {@link Class} object instead.
     *
     * @since 30.1
     */
    public boolean isTopLevel() {
      return className.indexOf('$') == -1;
    }

    /**
     * Loads (but doesn't link or initialize) the class.
     *
     * @throws LinkageError when there were errors in loading classes that this class depends on.

.filter((item) => $(item).is(':visible'))\n\n    if (items.length === 0) {\n      return\n    }\n\n    let index = items.indexOf(event.target)\n\n    if (event.which === ARROW_UP_KEYCODE && index > 0) { // Up\n      index--\n    }\n\n    if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) { // Down\n      index++\n    }\n\n    if (index < 0) {\n      index = 0\n    }\n\n    items[index].focus()\n  }\n}\n\n/**\n * ------------------------------------------------------------------------\n...

  @GwtIncompatible // NavigableSet
  @Override
  public abstract UnmodifiableIterator<E> descendingIterator();

  /** Returns the position of an element within the set, or -1 if not present. */
  abstract int indexOf(@CheckForNull Object target);

  /*
   * This class is used to serialize all ImmutableSortedSet instances,
   * regardless of implementation type. It captures their "logical contents"

        try {
            handle = DcerpcHandle.getHandle("ncacn_np:" + authorityServerName +
                    "[\\PIPE\\lsarpc]", auth);
            String server = authorityServerName;
            int dot = server.indexOf('.');
            if (dot > 0 && Character.isDigit(server.charAt(0)) == false)
                server = server.substring(0, dot);
            policyHandle = new LsaPolicyHandle(handle, "\\\\" + server, 0x00000800);

            InputLocationTracker tracker,
            String banned) {
        if (string != null) {
            for (int i = string.length() - 1; i >= 0; i--) {
                if (banned.indexOf(string.charAt(i)) >= 0) {
                    addViolation(
                            problems,
                            severity,
                            version,