public static Coordinate gcj02ToWgs84(double lng, double lat) {
		return new Coordinate(lng, lat).offset(offset(lng, lat, false));
	}
@Test
	public void gcj02ToWgs84Test() {
		final CoordinateUtil.Coordinate coordinate = CoordinateUtil.gcj02ToWgs84(116.404, 39.915);
		assertEquals(116.39775550083061D, coordinate.getLng(), 0);
		assertEquals(39.91359571849836D, coordinate.getLat(), 0);
	}