return getMavenSession().getRequest().getDegreeOfConcurrency();
    }

    @Nonnull
    @Override
    public Instant getStartTime() {
        return getMavenSession().getRequest().getStartInstant();
    }

    @Override
    public Path getRootDirectory() {
        return getMavenSession().getRequest().getRootDirectory();
    }

    @Override
    public Path getTopDirectory() {

        configProps.put(ConfigurationProperties.INTERACTIVE, request.isInteractiveMode());
        configProps.put("maven.startTime", request.getStartTime());
        configProps.put(Constants.MAVEN_START_INSTANT, request.getStartInstant());

        sessionBuilder.setOffline(request.isOffline());
        sessionBuilder.setChecksumPolicy(request.getGlobalChecksumPolicy());
        sessionBuilder.setUpdatePolicy(