DERBY-5955 Prepare Derby to run with Compact Profiles (JEP 161)

Patch derby-5955-javadoc-followup; typo fix plus clarify usage: JDBC 4.2/Java
8/Java 8 Compact profile 2.

git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/trunk@1441327 13f79535-47bb-0310-9956-ffa450edef68