off += 27;
                resp.decode(buffer, 4);
                /* EMC can send pad w/o data */
                final int pad = r.getDataOffset() - off;
                if (r.getByteCount() > 0 && pad > 0 && pad < 4) {
                    readn(this.in, buffer, 4 + off, pad);
                }

                if (r.getDataLength() > 0) {

    return partitionImpl(iterator, size, true);
  }

  private static <T extends @Nullable Object> UnmodifiableIterator<List<@Nullable T>> partitionImpl(
      Iterator<T> iterator, int size, boolean pad) {
    checkNotNull(iterator);
    checkArgument(size > 0);
    return new UnmodifiableIterator<List<@Nullable T>>() {
      @Override
      public boolean hasNext() {
        return iterator.hasNext();
      }