public static Class<?> getElementType(Iterable<?> iterable) {
		return getElementType(getIter(iterable));
	}
@Test
	public void getElementTypeTest(){
		final List<Integer> integers = Arrays.asList(null, 1);
		final Class<?> elementType = IterUtil.getElementType(integers);
		assertEquals(Integer.class,elementType);
	}