[Code review] Remove java warning
Remove the java warning in ApplicationCommandHandler due to restriction on required library
(from redmine: issue id 3367, created on 2018-04-04, closed on 2019-06-03)
Remove the java warning in ApplicationCommandHandler due to restriction on required library
(from redmine: issue id 3367, created on 2018-04-04, closed on 2019-06-03)