public List<Double> getNonNegativeDoubleList(final String param) {
    return getList(param, new StringToDouble(),
        new IsNonNegative<Double>(), "non-negative double");
  }
public List < Double > getNonNegativeDoubleList ( final String param ) { return getList ( param , new StringToDouble ( ) , new IsNonNegative < Double > ( ) , "non-negative double" ) ; }
Gets a parameter whose value is a (possibly empty) list of non-negative doubles.