tree 94a42cbc395bedcbff92ff19b8a160efbd6946e2
parent 95a7baf4fa024153a60225135d8bc7399c4de085
author Jonathan Hart <jono@onlab.us> 1423862099 -0800
committer Brian O'Connor <bocon@onlab.us> 1423865783 -0800

Return null instead of throw exception for invalid event states.

Change-Id: Ie40ca4dc1c241aa4f27652aa4e8b3f99eb924169