I'm using maven assembly plugin version 2.2.1 to build a package in a custom, proprietary format.
As a part of this process, I need to extract a bunch of *external* archives (by external I mean they are not listed as maven dependencies, but they are arbitrary files on the filesystem).

Do you know if maven assembly is able to do that ? I've looked and apparently, it is able to extract a bunch of *dependencies* in an arbitrary folder, but it is unable to extract an external archive.