diff --git a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/arithmetic/PiFunction.java b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/arithmetic/PiFunction.java
index 553ec8c841..f8549c0b3d 100644
--- a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/arithmetic/PiFunction.java
+++ b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/arithmetic/PiFunction.java
@@ -1,4 +1,3 @@
-
 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements. See the NOTICE file distributed with
diff --git a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/temporal/NowFunction.java b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/temporal/NowFunction.java
index 126d529319..6ecb19d9b9 100644
--- a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/temporal/NowFunction.java
+++ b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/temporal/NowFunction.java
@@ -1,4 +1,3 @@
-
 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements. See the NOTICE file distributed with
diff --git a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestChrFunction.java b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestChrFunction.java
index 4402b61c93..2473ddc2b7 100644
--- a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestChrFunction.java
+++ b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestChrFunction.java
@@ -28,10 +28,6 @@
 import java.util.HashMap;
 import java.util.List;
 
-/**
- * TestTransformChrFunctionProcessor
- * description: test chr functions in transform processor
- */
 public class TestChrFunction extends AbstractFunctionArithmeticTestBase {
 
     @Test