public static DateTime parse(CharSequence dateStr, DateFormat dateFormat) {
		return new DateTime(dateStr, dateFormat);
	}
@SuppressWarnings("ConstantConditions")
	@Test
	public void parseSingleNumberTest() {
		DateTime dateTime = DateUtil.parse("2020-5-08");
		assertEquals("2020-05-08 00:00:00", dateTime.toString());
		dateTime = DateUtil.parse("2020-5-8");
		assertEquals("2020-05-08 00:00:00", dateTime.toString());
		dateTime = DateUtil.parse("2020-05-8");
		assertEquals("2020-05-08 00:00:00", dateTime.toString());

		//datetime
		dateTime = DateUtil.parse("2020-5-8 3:12:3");
		assertEquals("2020-05-08 03:12:03", dateTime.toString());
		dateTime = DateUtil.parse("2020-5-8 3:2:3");
		assertEquals("2020-05-08 03:02:03", dateTime.toString());
		dateTime = DateUtil.parse("2020-5-8 3:12:13");
		assertEquals("2020-05-08 03:12:13", dateTime.toString());

		dateTime = DateUtil.parse("2020-5-8 4:12:26.223");
		assertEquals("2020-05-08 04:12:26", dateTime.toString());
	}