diff --git a/hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
index bb23a8678..114265d91 100644
--- a/hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
@@ -33,6 +33,12 @@ import java.util.SortedSet;
  */
 public class CollUtilTest {
 
+	@Test
+	public void isNotEmptyTest(){
+		Assert.assertFalse(CollUtil.isNotEmpty((Collection<?>) null));
+		;
+	}
+
 	@Test
 	public void newHashSetTest() {
 		Set<String> set = CollUtil.newHashSet((String[]) null);