change

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulResultSetMetaData.java

@@ -152,7 +152,6 @@ public class RestfulResultSetMetaData implements ResultSetMetaData {
                 return java.sql.Types.NCHAR;
         }
         throw new SQLException(TSDBConstants.INVALID_VARIABLES);
-
     }
 
     @Override

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulResultSetMetaDataTest.java

@@ -7,8 +7,6 @@ import org.junit.Test;
 
 import java.sql.*;
 
-import static org.junit.Assert.*;
-
 public class RestfulResultSetMetaDataTest {
 
     //    private static final String host = "127.0.0.1";