diff --git a/src/test/java/com/alibaba/druid/bvt/pool/TestIdle3_Concurrent_MaxActive.java b/src/test/java/com/alibaba/druid/bvt/pool/TestIdle3_Concurrent_MaxActive.java
index acd46d0a69..f4072d036d 100644
--- a/src/test/java/com/alibaba/druid/bvt/pool/TestIdle3_Concurrent_MaxActive.java
+++ b/src/test/java/com/alibaba/druid/bvt/pool/TestIdle3_Concurrent_MaxActive.java
@@ -38,8 +38,8 @@ public class TestIdle3_Concurrent_MaxActive extends TestCase {
 
     public void test_idle2() throws Exception {
 
-//        ManagementFactory.getPlatformMBeanServer().registerMBean(dataSource,
-//                                                                 new ObjectName("com.alibaba:type=DataSource"));
+        ManagementFactory.getPlatformMBeanServer().registerMBean(dataSource,
+                                                                 new ObjectName("com.alibaba:type=DataSource"));
 
         // 第一次创建连接
         {