@Test
public void testIsNotEmpty() {

    final List<Integer> nullList = null;
    final List<Integer> listWithoutEntries = new ArrayList<Integer>();
    final List<Integer> listWithOneEntry = Arrays.asList(1);
    assertThat(Lists.isNotEmpty(nullList), is(false));
    assertThat(Lists.isNotEmpty(listWithoutEntries), is(false));
    assertThat(Lists.isNotEmpty(listWithOneEntry), is(true));
}