public static void addMonthsToDate(UTCDate date, int months) {
        if (months != 0) {
            date.setMonth(date.getMonth() + months);
        }
    }
Adds the given number of months to a date.

@param date the date
@param months number of months
stroom-core-client-widget/src/main/java/stroom/widget/datepicker/client/CalendarUtil.java