public static String formatDT(TimeZone tz, Date date) {
        return formatDT(tz, date, new DatePrecision());
    }
@Test
    public void testFormatDTwithTZ() {
        assertEquals("19700101020000.000+0200",
                DateUtils.formatDT(tz, new Date(0),
                        new DatePrecision(Calendar.MILLISECOND, true)));
    }