public String getPrettyFieldString(final String fieldKey, String str, final I18nHelper i18n) { if (fieldManager.isNavigableField(fieldKey)) { final NavigableField field = fieldManager.getNavigableField(fieldKey); if (field != null) { str = field.prettyPrintChangeHistory(str, i18n); } } else { log.debug("FieldKey {} is an invalid field. No translation of change history will occur", fieldKey); } return str; }