public boolean addAll(NamedList<T> nl){
  nvPairs.addAll(nl.nvPairs);
  return nl.size() > 0;
}

public boolean addAll ( NamedList < T > nl ) { nvPairs . addAll ( nl . nvPairs ) ; return nl . size ( ) > 0 ; }
appends the elements of the given namedlist to this one .
