public static DateTime parse(CharSequence dateStr, DateFormat dateFormat) {
		return new DateTime(dateStr, dateFormat);
	}
@Test
	public void parseSingleMonthAndDayTest() {
		DateTime parse = DateUtil.parse("2021-1-1");
		assertNotNull(parse);
		assertEquals("2021-01-01 00:00:00", parse.toString());

		parse = DateUtil.parse("2021-1-22 00:00:00");
		assertNotNull(parse);
		assertEquals("2021-01-22 00:00:00", parse.toString());
	}