cannot reuse mavenArchiver instance in a Mojo

[nicolas de loof]

Hello,

I need to build multiple archives from a mojo. I used a JarArchiver as
plexus component :

    /**
     * @parameter expression="${
component.org.codehaus.plexus.archiver.Archiver#jar}"
     * @required
     */
    private JarArchiver archiver;

The generated jars grows as long as I create more un the plugin : the next
jar contains all files from the previous one

Using archiver.reset() doesn't change anything.

Looking at source, AbstractArchiver.addFile puts files in a filesMap that is
never cleared.

Is this a known bug ?

Nico.