code: @Override
      public T resolve(List<T> siblings) throws UnresolvedConflictException
      {
          if (siblings.size() > 1)
          {
              throw new UnresolvedConflictException("Siblings found", siblings);
          }
          else if (siblings.size() == 1)
          {
              return siblings.get(0);
          }
          else
          {
              return null;
          }
      }
docs: Detects conflict but does not resolve it.
  
  @param siblings the list of siblings returned from Riak
  @return null or the single value in the collection
  @throws UnresolvedConflictException if {@code siblings} has > 1 entry.