Understanding Proxy Connectors Rules of Apache Archiva
Configuring whitelists and blacklists in "bulk mode"
Proxy Connectors have white/black list for filtering which artifacts are retrieve or not from remote repositories (see Configuring proxy connectors section "Configuring whitelists and blacklists")
NOTE: configuring black list will improve performance of your tests. You probably don't to get org/apache/** from all of your remote repositories !