For SLE 15 SP1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Marvin1973:branches:home:BerlinOnline:couchdb:2.x/SLE_15_SP1/home:Marvin1973:branches:home:BerlinOnline:couchdb:2.x.repo
zypper refresh
zypper install erlang-jinterface
For SLE 15 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Marvin1973:branches:home:BerlinOnline:couchdb:2.x/SLE_15/home:Marvin1973:branches:home:BerlinOnline:couchdb:2.x.repo
zypper refresh
zypper install erlang-jinterface