HIVE-8854 : Guava dependency conflict between hive driver and remote spark context[Spark Branch] (Marcelo Vanzin via Szehon)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1640633 13f79535-47bb-0310-9956-ffa450edef68
HIVE-8883 : Investigate test failures on auto_join30.q [Spark Branch] (Chao Sun via Szehon)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1640654 13f79535-47bb-0310-9956-ffa450edef68