diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/AuthenticationTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/AuthenticationTest.java
index c21059d2c3cfad6ac100654a9a7d0d8578b1bbfe..e1e68766b99f4711114b0bd81b4e345d7d3c245e 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/AuthenticationTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/AuthenticationTest.java
@@ -1,12 +1,9 @@
 package com.taosdata.jdbc.rs;
 
-import com.taosdata.jdbc.TSDBDriver;
-import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
 import java.sql.*;
-import java.util.Properties;
 
 public class AuthenticationTest {