MAPREDUCE-4899 fix branch-2 merge issue in pom

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1430470 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4100. Fix all findbug security warings. Contributed by Liang Xie


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1430545 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4030. BlockManager excessBlocksCount and postponedMisreplicatedBlocksCount should be AtomicLongs. Contributed by Eli Collins


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1430549 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4031. Update findbugsExcludeFile.xml to include findbugs 2 exclusions. Contributed by Eli Collins


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1430552 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4033. Miscellaneous findbugs 2 fixes. Contributed by Eli Collins


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1430576 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4034. Remove redundant null checks. Contributed by Eli Collins


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1430588 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4362. Merging change r1430137 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1430594 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4035. LightWeightGSet and LightWeightHashSet increment a volatile without synchronization. Contributed by Eli Collins


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1430619 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'branch-2' of github.com:griddynamics/yhadoop-common into branch-2-gd
Merge branch 'branch-2-gd' of github.com:griddynamics/yhadoop-common into fb-HADOOP-9170-branch-2-gd