} else if (value instanceof Date) {
                final SimpleDateFormat sdf = new SimpleDateFormat(Constants.ISO_DATETIME_FORMAT);
                sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
                data.putValue(key, sdf.format(value));
            } else if (value != null) {
                data.putValue(key, value.toString());
            }
        } catch (final Exception e) {

            // NOP
        }

        /**
         * Default date time formatter for ISO 8601 format with UTC timezone.
         */
        public static final DateTimeFormatter DEFAULT_DATE_PRINTER = ISODateTimeFormat.dateTime().withZone(DateTimeZone.UTC);

        /**
         * Converts a Date object to its string representation in ISO 8601 format.
         *