code: public static final Renderer<BigDecimal> instance() { // NOPMD it's thread save!
      if (CurrencyBigDecimalRenderer.instanceRenderer == null) {
        synchronized (CurrencyBigDecimalRenderer.class) {
          if (CurrencyBigDecimalRenderer.instanceRenderer == null) {
            CurrencyBigDecimalRenderer.instanceRenderer = new CurrencyBigDecimalRenderer();
          }
        }
      }
      return CurrencyBigDecimalRenderer.instanceRenderer;
    }
docs: returns the instance.
  
  @return CurrencyDoubleRenderer