diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java
index b793a47c990a930579b749b1eec95abed6ad554e..ce3735c12894807efadd1f5673fc34eee43ae01b 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java
@@ -5,24 +5,24 @@ import com.taosdata.jdbc.utils.TDNodes;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 
-public class BaseTest {
+public abstract class BaseTest {
 
-    private static boolean testCluster = false;           
+    private static boolean testCluster = false;
     private static TDNodes nodes = new TDNodes();
-    
+
     @BeforeClass
     public static void setupEnv() {
-        try{                         
+        try {
             if (nodes.getTDNode(1).getTaosdPid() != null) {
                 System.out.println("Kill taosd before running JDBC test");
                 nodes.getTDNode(1).setRunning(1);
                 nodes.stop(1);
             }
-            nodes.setTestCluster(testCluster);  
+            nodes.setTestCluster(testCluster);
             nodes.deploy(1);
             nodes.start(1);
         } catch (Exception e) {
-            e.printStackTrace();            
+            e.printStackTrace();
         }
     }
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/FailOverTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/FailOverTest.java
index dd223777d9d54c4e357e9281d1217ecbe17284c0..2a803e0f196e0f3d1f0f14bda0f3718b3e4b43ac 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/FailOverTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/FailOverTest.java
@@ -1,7 +1,5 @@
 package com.taosdata.jdbc.cases;
 
-import org.junit.After;
-import org.junit.Before;
 import org.junit.Test;
 
 import java.sql.*;