jobId.toString() to only be called when the ID isn't null. this doesn't surface in MR, but spark seems to manage it Change-Id: I06692ef30a4af510c660d7222292932a8d4b5147
jobId.toString() to only be called when the ID isn't null. this doesn't surface in MR, but spark seems to manage it Change-Id: I06692ef30a4af510c660d7222292932a8d4b5147