Use recommended modifier order

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/dbcp/trunk@1596832 13f79535-47bb-0310-9956-ffa450edef68
Order imports

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/dbcp/trunk@1596833 13f79535-47bb-0310-9956-ffa450edef68
Code clean-up. No functional change. Import and modifier order.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/dbcp/trunk@1596835 13f79535-47bb-0310-9956-ffa450edef68
Code clean-up. No functional change. Import and modifier order.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/dbcp/trunk@1596838 13f79535-47bb-0310-9956-ffa450edef68