* coordinates.
     *
     * @param artifact the artifact to add or replace.
     * @deprecated Please use {@link MavenProjectHelper}
     * @throws DuplicateArtifactAttachmentException will never happen but leave it for backward compatibility
     */
    public void addAttachedArtifact(Artifact artifact) throws DuplicateArtifactAttachmentException {
        // if already there we remove it and add again

            if (session != null) {
                try {
                    modelBuildingRequest.setRootDirectory(session.getRootDirectory());
                } catch (IllegalStateException e) {
                    // can happen if root directory cannot be found, just ignore
                }
            }
            */

            return modelBuildingRequest;
        }