Sanity check that a custom enum can be properly serialized and deserialized on a give JRE.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1547876 13f79535-47bb-0310-9956-ffa450edef68
Remove dead comment.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1547878 13f79535-47bb-0310-9956-ffa450edef68