Can someone take a look at HADOOP-16107 https://issues.apache.org/jira/browse/HADOOP-16107
It fixes the problem surfacing in jenkins builds and filed as MAPREDUCE-7184 https://builds.apache.org/job/hadoop-qbt-trunk-java8-linux-x86/1055/testReport/junit/org.apache.hadoop.mapred/TestJobCounters/testNewCounterA/ thanks