Jenkins <--> DevCentral connectivity uses a Jenkins plugin: https://github.com/uber-archive/phabricator-jenkins-plugin
A fix has been submitted to address a library issue, but it's not released, so can't be fetched automatically from Jenkins.
We'd need to compile it and release the artifact somewhere. Note we don't currently have a Maven repository or plan for one, as we don't currently maintain any Java code at Nasqueron.