Avoid unused warnings

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/proxy/trunk@1582335 13f79535-47bb-0310-9956-ffa450edef68
Boxing OK in test code

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/proxy/trunk@1582336 13f79535-47bb-0310-9956-ffa450edef68