@Override public int put(final List<T> buffer,final int from,final int to) throws IOException {
  items.addAll(buffer.subList(from,to));
  return to - from;
}

@ Override public int put ( final List < T > buffer , final int from , final int to ) throws IOException { items . addAll ( buffer . subList ( from , to ) ) ; return to - from ; }
bulk put of the data items from the specified buffer
