FindBugs: Unnecessary assignment

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/pool/trunk@1545628 13f79535-47bb-0310-9956-ffa450edef68
FindBugs: Use static inner class, unnecessary allocation

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/pool/trunk@1545629 13f79535-47bb-0310-9956-ffa450edef68