}
        Path path = paths.get(id);
        if (path == null && artifact instanceof DefaultArtifact) {
            path = ((DefaultArtifact) artifact).getArtifact().getPath();
        }
        return Optional.ofNullable(path);
    }

    @Override
    public void setPath(@Nonnull Artifact artifact, Path path) {
        String id = id(nonNull(artifact, "artifact"));
        if (session.getMavenSession().getAllProjects() != null) {