public static boolean isNotEmpty(@SuppressWarnings("rawtypes") Collection collection) {
        return !isEmpty(collection);
    }
@Test
    void collectionIsNotEmpty() {
        assertThat(CollectionUtil.isNotEmpty(null)).isFalse();
        assertThat(CollectionUtil.isNotEmpty(Collections.emptyList())).isFalse();
        assertThat(CollectionUtil.isNotEmpty(Collections.singletonList("test"))).isTrue();
    }