code: public void setDecimalFormatSymbols(DecimalFormatSymbols newSymbols) {
          try {
              // don't allow multiple references
              symbols = (DecimalFormatSymbols) newSymbols.clone();
              expandAffixes();
              fastPathCheckNeeded = true;
          } catch (Exception foo) {
              // should never happen
          }
      }
docs: Sets the decimal format symbols, which is generally not changed
  by the programmer or user.
  @param newSymbols desired DecimalFormatSymbols
  @see java.text.DecimalFormatSymbols