HIVE-3632 : Upgrade datanucleus to support JDK7 (Xuefu Zhang via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1507354 13f79535-47bb-0310-9956-ffa450edef68
(cherry picked from commit 4ab4e2bed616fb8e815c266a705370f2285435af)