svn merge -c 1509900 FIXES: MAPREDUCE-5440. TestCopyCommitter Fails on JDK7. Contributed by Robert Parker


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.1-beta@1509902 13f79535-47bb-0310-9956-ffa450edef68