tree d47acae7b1f32012d07c497d7586e290fda71cb3
parent 576969a0ed29514c3366a90f9c4af30f51ff4cb5
author Yuta HIGUCHI <y-higuchi@ak.jp.nec.com> 1520614913 -0800
committer Ray Milkey <ray@opennetworking.org> 1520889136 +0000

Gracefully handle Device not there yet

- according to the javadoc, this should return
  DomainId or null

Change-Id: Idf1a1719bd987ed1d22e4801a7a2fa8a22fd532b