HIVE-4807 : Hive metastore hangs (Sarvesh Sakalanaga via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1501675 13f79535-47bb-0310-9956-ffa450edef68
HIVE-3691 : TestDynamicSerDe failed with IBM JDK (Bing Li & Renata Ghisloti via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1501687 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-HIVE-4791-trunk-gd