}

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_Null() throws Exception {
        assertThat(toCalendar(null), is(nullValue()));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_EmptyString() throws Exception {
        assertThat(toCalendar(""), is(nullValue()));
    }

    /**

    }

    /**
     * @throws Exception
     */
    //    @Test
    //    public void testToCalendar_Null() throws Exception {
    //        assertThat(toCalendar(null, Locale.JAPAN), is(nullValue()));
    //    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_EmptyString() throws Exception {
        assertThat(toCalendar("", Locale.JAPAN), is(nullValue()));
    }

    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_Null() throws Exception {
        assertThat(toCalendar(null), is(nullValue()));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_EmptyString() throws Exception {
        assertThat(toCalendar(""), is(nullValue()));
    }

    /**

     * @throws Exception
     */
    @After
    public void tearDown() throws Exception {
        TimeZone.setDefault(null);
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar() throws Exception {
        final Date date = new Date();
        final Calendar cal = CalendarConversionUtil.toCalendar(date);
        assertEquals(date, cal.getTime());
    }

    /**
     *