code: private void growBondArray() {
          growArraySize = (bonds.length < growArraySize) ? growArraySize : bonds.length;
          IBond[] newBonds = new IBond[bonds.length + growArraySize];
          System.arraycopy(bonds, 0, newBonds, 0, bonds.length);
          bonds = newBonds;
      }
docs: Grows the bond array by a given size.
  
  @see    #growArraySize