For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:p_conrad:java/openSUSE_Tumbleweed/home:p_conrad:java.repo
zypper refresh
zypper install apache-httpcomponents
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:p_conrad:java/openSUSE_Factory/home:p_conrad:java.repo
zypper refresh
zypper install apache-httpcomponents
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:p_conrad:java/15.5/home:p_conrad:java.repo
zypper refresh
zypper install apache-httpcomponents
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:p_conrad:java/15.4/home:p_conrad:java.repo
zypper refresh
zypper install apache-httpcomponents