	@Test
	public void buildMap() {

		try {
			HashMap<String, Integer> map4 = MapUtil.newHashMap(new String[] { "1", "2" }, new Integer[] { 1 });
			fail("should fail here");
		} catch (Exception e) {
			assertThat(e).isInstanceOf(IllegalArgumentException.class);
			assertThat(e).hasMessage("keys.length is 2 but values.length is 1");
		}
	}