[Maven embedder] How to retrieve the list of available versions of a given plugin?

[xavier . seignard]

Hello,
I would like to know how to retrieve list of available versions of a given  
plugin with the maven embedder.

In input I only have a groupId, an artifactId, a local repo and a list of  
remote repos.

In output I would like to have a list containing all the available versions  
of the given artifact from the local repo or from the remote repos.

Any idea?

Regards,

Xavier