code: protected void cleanRow() {
          int i = 0;
          while(i < this.cells.size()) {
              if(((RtfCell) this.cells.get(i)).isDeleted()) {
                  this.cells.remove(i);
              } else {
                  i++;
              }
          }
      }
docs: Cleans the deleted RtfCells from the total RtfCells.