vi /var/tmp/bundles/plugins/plugin_identifiers.json
.
.
"killbill-ingenico": {
"plugin_name": "killbill-ingenico",
"language": "java"
}
}
mkdir /var/tmp/bundles/plugins/java/killbill-ingenico
mkdir /var/tmp/bundles/plugins/java/killbill-ingenico/1.0
cp <path of jar file> /var/tmp/bundles/plugins/java/killbill-ingenico/1.0/
cd /var/tmp/bundles/plugins/java/killbill-ingenico
ln -s /var/tmp/bundles/plugins/java/killbill-ingenico/1.0 SET_DEFAULT