try {
            Date from  = sdf.parse("2016-11-07 00:00:00");
            Date to = sdf.parse("2016-11-14 00:00:00");

            DateTime fromDateTime = from == null ? null : new DateTime(from);
            if(fromDateTime == null){
                System.out.println("fromDateTime == null");
            }else{
                System.out.println("fromDateTime != null");
            }
            Date  fromDate = fromDateTime.toDate();
             String  formDateStr = sdf.format(fromDate);
             System.out.println(formDateStr);

        } catch (ParseException e) {
            e.printStackTrace();
        }