PasswordResetApp: add javadoc
PasswordResetApp: add javadoc

naver/yobi,doortts/fork-yobi,ihoneymon/yobi,ahb0327/yobi,bloodybear/yona,ihoneymon/yobi,Limseunghwan/oss,doortts/fork-yobi,doortts/forked-for-history,bloodybear/yona,yona-projects/yona,ChangsungKim/TestRepository01,violetag/demo,bloodybear/yona,naver/yobi,yona-projects/yona,yona-projects/yona,ahb0327/yobi,ahb0327/yobi,doortts/fork-yobi,ihoneymon/yobi,naver/yobi,brainagenet/yobi,Limseunghwan/oss,violetag/demo,doortts/fork-yobi,doortts/forked-for-history,Limseunghwan/oss,oolso/yobi,brainagenet/yobi,oolso/yobi,brainagenet/yobi,yona-projects/yona,doortts/forked-for-history,oolso/yobi,ChangsungKim/TestRepository01,bloodybear/yona