*/
    protected static Calendar toCalendar(final Date date, final Locale locale) {
        final Calendar calendar;
        if (locale == null) {
            calendar = Calendar.getInstance();
        } else {
            calendar = Calendar.getInstance(locale);
        }
        calendar.setTime(date);
        return calendar;
    }

    /**
     * 文字列を{@link java.sql.Date}に変換します。
     *
     * @param str

     */
    protected static Calendar toCalendar(final Date date, final Locale locale) {
        final Calendar calendar;
        if (locale == null) {
            calendar = Calendar.getInstance();
        } else {
            calendar = Calendar.getInstance(locale);
        }
        calendar.setTime(date);
        return calendar;
    }

    /**
     * 文字列を{@link Time}に変換します。
     *
     * @param str

     */
    protected static Calendar toCalendar(final Date date, final Locale locale) {
        final Calendar calendar;
        if (locale == null) {
            calendar = Calendar.getInstance();
        } else {
            calendar = Calendar.getInstance(locale);
        }
        calendar.setTime(date);
        return calendar;
    }

    /**
     * 文字列を{@link Timestamp}に変換します。
     *
     * @param str