MavenSession session = reflectiveCreateMavenSession(container, mvn, request);
LegacySupport legacy = container.lookup(LegacySupport.class);
legacy.setSession(session);
// then lookup the DefaultArtifactInstaller
DefaultArtifactInstaller dai = (DefaultArtifactInstaller) container.lookup(ArtifactInstaller.class);
final Set<Entry<String, InputStream>> entries = origins.entrySet();
for (Iterator<Entry<String, InputStream>> it = entries.iterator(); it.hasNext();) {
final Entry<String, InputStream> entry = it.next();
final String fileExtension = entry.getKey();