6a9534e9cf
Fixed a minor import issue in the test during cherry-pick from trunk. (cherry picked from commit e76faebc9589654e83c8244ef9aff88391e56b80) Conflicts: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java