tree 423aac0745843a2c00200322c255424fc0e2a583
parent 4c615ac8d8c240dc34c190dc4596b737f02c63db
author 柯志勇10068695 <ke.zhiyong@zte.com.cn> 1540286299 +0800
committer zhiyong ke <ke.zhiyong@zte.com.cn> 1540285989 +0000

If dataNodeList if null or empty, the following code dataNodeList.get(0) will get an error.

Change-Id: Ia2599f7b6a8af3823497c0f6a3098de931f5407a