class JodaLocalDateTimeToStringConverter implements Converter<String, LocalDateTime> {

    @CheckForNull
    @Override
    public LocalDateTime convertToModel(@CheckForNull String value,
            @CheckForNull Class<? extends LocalDateTime> targetType,
            @CheckForNull Locale locale) throws ConversionException {
        throw new UnsupportedOperationException(getClass().getName() + " only supports convertToPresentation");
    }

}