code: public HashCodeBuilder append(final byte[] array) {
          if (array == null) {
              iTotal = iTotal * iConstant;
          } else {
              for (final byte element : array) {
                  append(element);
              }
          }
          return this;
      }
docs: <p>
  Append a <code>hashCode</code> for a <code>byte</code> array.
  </p>
  
  @param array
  the array to add to the <code>hashCode</code>
  @return this