Java 8 bigdecimal max value from arraylist

        Optional<BigDecimal> max = Optional.empty();

        if (!this.itemsFiltered.isEmpty()) {//check if list is not empty
            max = itemsFiltered.stream()
                    .map(a -> a.getPrecioVentaNuevo())
                    .max(Comparator.naturalOrder());
            if (max.isPresent()) {
                Utilidades.Error("maxOptional:" + max);//prints optional value 
                Utilidades.Error("maxValue:" + max.get());//prints real value if any found.
            }
        }