@Override
    public Version getMavenVersion() {
        return parseVersion(runtimeInformation.getMavenVersion());
    }

    @Override
    public int getDegreeOfConcurrency() {
        return getMavenSession().getRequest().getDegreeOfConcurrency();
    }

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

        infoLine('-');

        long finish = System.currentTimeMillis();

        long time = finish - session.getRequest().getStartTime().getTime();

        String wallClock = session.getRequest().getDegreeOfConcurrency() > 1 ? " (Wall Clock)" : "";

        logger.info("Total time:  {}{}", formatDuration(time), wallClock);

        logger.info("Finished at: {}", formatTimestamp(finish));
    }

    @Override

        result.putAll(getUserProperties());
        return result;
    }

    @Override
    public Version getMavenVersion() {
        return null;
    }

    @Override
    public int getDegreeOfConcurrency() {
        return 0;
    }

    @Override
    public Instant getStartTime() {
        return startTime;
    }

    @Override
    public Path getTopDirectory() {
        return null;

     *
     * @param degreeOfConcurrency
     */
    void setDegreeOfConcurrency(int degreeOfConcurrency);

    /**
     * @return the degree of concurrency for the build.
     */
    int getDegreeOfConcurrency();

    // Recursive (really to just process the top-level POM)
    MavenExecutionRequest setRecursive(boolean recursive);

    boolean isRecursive();

    MavenExecutionRequest setPom(File pom);

    }

    @Override
    public void setDegreeOfConcurrency(final int degreeOfConcurrency) {
        this.degreeOfConcurrency = degreeOfConcurrency;
    }

    @Override
    public int getDegreeOfConcurrency() {
        return degreeOfConcurrency;
    }

    @Override
    public WorkspaceReader getWorkspaceReader() {
        return workspaceReader;
    }

    @Override

     */
    @Nonnull
    Version getMavenVersion();

    /**
     * Returns the degree of concurrency for the build.
     *
     * @return  the degree of concurrency
     */
    int getDegreeOfConcurrency();

    /**
     * Returns the start time of the session.
     *
     * @return the start time as an Instant object, never {@code null}
     */
    @Nonnull
    Instant getStartTime();