diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDatabaseMetaData.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDatabaseMetaData.java
index 7b404c3844c545523f626417879487da13bf69a7..c069fccf009dbb3b418859ead03c84e5f38b8fb4 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDatabaseMetaData.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDatabaseMetaData.java
@@ -35,7 +35,6 @@ public class TSDBDatabaseMetaData implements java.sql.DatabaseMetaData {
         this.conn = conn;
     }
 
-
     @Override
     public <T> T unwrap(Class<T> iface) throws SQLException {
         try {
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
index 19dabe07462b6481b2ab5460aad7ac5712e21b7c..27263073ff734d459c07545182d51cb860becdb2 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
@@ -231,9 +231,9 @@ public class DatabaseMetaDataTest {
         databaseMetaData.getFunctionColumns("", "", "", "");
         databaseMetaData.getPseudoColumns("", "", "", "");
         databaseMetaData.generatedKeyAlwaysReturned();
-
     }
 
+
     @AfterClass
     public static void close() throws Exception {
         statement.executeUpdate("drop database " + dbName);