assertThat(toCalendar("", Locale.JAPAN), is(nullValue()));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_ShortStyle() throws Exception {
        final Calendar calendar = toCalendar("10/9/7 11:49", Locale.JAPAN);
        assertThat(new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(calendar.getTime()), is("2010/09/07 11:49:00"));
    }