svn merge -c 1355766 from trunk. Backport of MAPREDUCE-4253. Tests for mapreduce-client-core are lying under mapreduce-client-jobclient. Contributed by Tsuyoshi Ozawa. (harsh)
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1355772 13f79535-47bb-0310-9956-ffa450edef68