On 12/07/2016 11:19 AM, 风驰天下 wrote:
> Hi,alls.
> 
>     I have set up a three nodes odl cluster and developed two bundles,
> one defined a yang-model notification and another recieved this notification

Hello,

during a write transition old data can be null (as in non-existent),
hence oldNode.getSimpleData() will trip a NPE.

Regards,
Robert

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