code: protected void setAddress(int index, long value, long scn) throws Exception {
          _addressArray.set(index, value, scn);
          _hwmSet = Math.max(_hwmSet, scn);
      }
docs: Sets the address (long value) at the specified array index.
  
  @param index - the array index.
  @param value - the address value.
  @param scn   - the System Change Number (SCN)  representing an ever-increasing update order.
  @throws Exception if the address cannot be updated at the specified array index.