The language identification needs to be dynamic to work properly, and I'm not sure it will even work with that.
A Maven generated site with multiple languages
Doxia needs to be told which language the pages are in. For each of the non-default languages there should be no problem, because the docs are in a directory named after the language id.
A Maven generated site in a single language - not English. We have company internal documentation in Swedish only.
How does Doxia know which language it is in? It is not mentioned in the document sources.