Simplify.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1616414 13f79535-47bb-0310-9956-ffa450edef68
Add spacer line.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1616417 13f79535-47bb-0310-9956-ffa450edef68
Fix Javadoc 8.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1616418 13f79535-47bb-0310-9956-ffa450edef68
Test MapLookup.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1616420 13f79535-47bb-0310-9956-ffa450edef68