For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:urbic:coneforest/openSUSE_Tumbleweed/home:urbic:coneforest.repo
zypper refresh
zypper install jline1
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:urbic:coneforest/openSUSE_Slowroll/home:urbic:coneforest.repo
zypper refresh
zypper install jline1
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:urbic:coneforest/15.6/home:urbic:coneforest.repo
zypper refresh
zypper install jline1
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:urbic:coneforest/15.5/home:urbic:coneforest.repo
zypper refresh
zypper install jline1
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:urbic:coneforest/15.4/home:urbic:coneforest.repo
zypper refresh
zypper install jline1