diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
index 9eb65780e5..13e80876bd 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
@@ -1383,8 +1383,12 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
     public JdbcDataSourceStat getDataSourceStat() {
         return dataSourceStat;
     }
+    
+    public Object clone() throws CloneNotSupportedException {
+        return cloneDruidDataSource();
+    }
 
-    public DruidDataSource clone() {
+    public DruidDataSource cloneDruidDataSource() {
         DruidDataSource x = new DruidDataSource();
         
         cloneTo(x);
diff --git a/src/test/java/com/alibaba/druid/bvt/pool/TestClone.java b/src/test/java/com/alibaba/druid/bvt/pool/TestClone.java
index f174aceae1..64d4353260 100644
--- a/src/test/java/com/alibaba/druid/bvt/pool/TestClone.java
+++ b/src/test/java/com/alibaba/druid/bvt/pool/TestClone.java
@@ -30,9 +30,17 @@ public class TestClone extends TestCase {
         Connection conn_1 = dataSource.getConnection();
         Connection conn_2 = dataSource.getConnection();
         
-        DruidDataSource clone = dataSource.clone();
+        DruidDataSource clone = (DruidDataSource) dataSource.clone();
         clone.init();
         
+        Connection conn_3 = dataSource.getConnection();
+        Connection conn_4 = dataSource.getConnection();
+        Connection conn_5 = dataSource.getConnection();
+        
+        conn_3.close();
+        conn_4.close();
+        conn_5.close();
+        
         dataSource.close();
         
         Assert.assertEquals(dataSource.getUrl(), clone.getUrl());
@@ -72,13 +80,13 @@ public class TestClone extends TestCase {
         // now is new dataSource;
         dataSource = clone;
         
-        Connection conn_3 = dataSource.getConnection();
-        Connection conn_4 = dataSource.getConnection();
-        Connection conn_5 = dataSource.getConnection();
+        Connection conn_6 = dataSource.getConnection();
+        Connection conn_7 = dataSource.getConnection();
+        Connection conn_8 = dataSource.getConnection();
         
-        conn_3.close();
-        conn_4.close();
-        conn_5.close();
+        conn_6.close();
+        conn_7.close();
+        conn_8.close();
         
     }