If there's no built-in interoperability, does it become my job to translate my maven dependency on foo:foo:jar:1.2.3 into a spec file dependency on foo-1.2pl3-4.noarch.rpm, and that my maven and rpm repositories each have a package which was built from the same code, and that all foo's dependencies match up in both places (recursively)? How do people actually use this stuff, short of just slopping jars around with rsync and abandoning all automatic management?