tree fbdc9065c9529e1e104d3e8a4808a9e8916a4636
parent c6076a1d39219378daac8c276bc4bea5da815f2f
author Yi Tseng <yi@opennetworking.org> 1510967681 -0800
committer Charles Chan <charles@opennetworking.org> 1510969557 +0000

Fix NPE of DHCP relay

Throws NPE when server not resolved.

Change-Id: I27cf7b5c93d60855d2c734ee6b9cff52742d7b07