diff --git a/ppl-spark-integration/src/test/java/org/opensearch/sql/expression/function/SerializableTimeUdfTest.java b/ppl-spark-integration/src/test/java/org/opensearch/sql/expression/function/SerializableTimeUdfTest.java
index 1f3926745..95baded40 100644
--- a/ppl-spark-integration/src/test/java/org/opensearch/sql/expression/function/SerializableTimeUdfTest.java
+++ b/ppl-spark-integration/src/test/java/org/opensearch/sql/expression/function/SerializableTimeUdfTest.java
@@ -37,9 +37,10 @@ public void teardown() {
     @Test
     public void relativeDateTimeTest() {
 
-        /** These are only basic tests of the relative date time functionality.
-         * For more comprehensive tests, see {@link TimeUtilsTest}.
+        /* These are only basic tests of the relative date time functionality.
+          For more comprehensive tests, see {@link TimeUtilsTest}.
          */
+
         testValid("now", "2000-01-03T01:01:01.100");
         testValid("-60m", "2000-01-03T00:01:01.100");
         testValid("-h", "2000-01-03T00:01:01.100");