How to make %%classpath add mvn uses local cache complete?

I don't have access to public maven repositories in a certain enterprise environment. However, I do have copy of the maven cache (generated on another machine that has access to public maven repositories) placed /tmp/share/beaker/maven, but it still doesn't work. My guess is that %%classpath add mvn still tries to connect to public maven repositories. Is there any way to make %%classpath to use the local cache complete (without trying to connect to any maven repositories rather than the local cache)?