static Date multiParse(String strDate){

    if (strDate?.trim()){
        final List<String> dateFormats = Arrays.asList("yyyy-MM-dd", "yyyy/MM/dd");    

        for(String format: dateFormats){
            SimpleDateFormat sdf = new SimpleDateFormat(format);
            try{
                return sdf.parse(strDate);
            } catch (ParseException e) {
                 //intentionally empty
            }
        }
    }
    return null
}