Duration.java

if (pbp.getDuration() > 0) {
            setEndDate(null); // The stored procedure will figure out the end date given the product's duration
            final DateMidnight today = new DateMidnight();
            setStartDate(new Date(today.getMillis()));
        } else {
            if (adBean.getStartDate() != null) {
                setStartDate(adBean.getStartDate());
            } else {
                final DateMidnight today = new DateMidnight();
                setStartDate(new Date(today.getMillis()));
            }
            if (adBean.getEndDate() != null) {
                setEndDate(adBean.getEndDate());
            } else {
                // Will be configured again later
                final DateMidnight today = new DateMidnight();
                setEndDate(new Date(today.getMillis()));
            }
        }

Optional.java

final Date today = new Date(new DateMidnight().getMillis());

if (pbp.getDuration() > 0) {
            setEndDate(null); // The stored procedure will figure out the end date given the product's duration
            setStartDate(today);
        } else {
            Date startDate = Optional.fromNullable(adBean.getStartDate()).or(today);
            setStartDate(startDate);
            Date endDate = Optional.fromNullable(adBean.getEndDate()).or(today);
            setEndDate(endDate);
        }