7edeb43ed1
* BAEL-7598 Check if a number is a perfect number * add stream based method. refactor UT * refactor UT using bdd style * removes public modifier * add jmh benchmark * use properties and remove uncessary configuration --------- Co-authored-by: alexyang <alexyang0623@gmail.com> Co-authored-by: travel2china <163321917+travel2china@users.noreply.github.com>