Redhat 7에 jar 파일을 설치하기 위한 저장소는 무엇입니까?

jar 명령을 설치하려면 repo(/etc/yum.repo.d 아래)가 무엇입니까?

yum install jar
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-    manager
This system is not registered to Red Hat Subscription Management. You can    use subscription-manager to register.
     HighAvailability                                                                                 | 4.1 kB  00:00:00
   ResilientStorage                                                                                | 4.1 kB  00:00:00
 local                                                                                           | 4.1 kB  00:00:00
 No package jar available.
 Error: Nothing to do