change

src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java

@@ -5,14 +5,14 @@ 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 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);

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/FailOverTest.java

 package com.taosdata.jdbc.cases;
 
-import org.junit.After;
-import org.junit.Before;
 import org.junit.Test;
 
 import java.sql.*;