session.setSession(defaultSessionFactory.newSession(session));

            sessionScope.seed(MavenSession.class, session);
            sessionScope.seed(Session.class, session.getSession());
            sessionScope.seed(InternalMavenSession.class, InternalMavenSession.from(session.getSession()));

            legacySupport.setSession(session);

        public ProjectBuilder setArtifactId(String artifactId) {
            project.setArtifactId(artifactId);
            return this;
        }

        public ProjectBuilder setVersion(String version) {
            project.setVersion(version);
            return this;
        }

        // Dependencies
        //

        MavenSession session = new MavenSession(
                getContainer(), repoSession, new DefaultMavenExecutionRequest(), new DefaultMavenExecutionResult());
        session.setSession(new DefaultSessionFactory(
                        getContainer().lookup(RepositorySystem.class),
                        getContainer().lookup(MavenRepositorySystem.class),

    @Deprecated
    public Map<String, Object> lookupMap(String role) throws ComponentLookupException {
        return container.lookupMap(role);
    }

    public Session getSession() {
        return session;
    }

    public void setSession(Session session) {
        this.session = session;
    }
    /*end[MAVEN4]*/

        MavenSession session = legacySupport.getSession();

        if (plugin.getVersion() == null) {
            PluginVersionRequest versionRequest = new DefaultPluginVersionRequest(
                    plugin, session.getRepositorySession(), project.getRemotePluginRepositories());
            plugin.setVersion(pluginVersionResolver.resolve(versionRequest).getVersion());
        }

        try {

            managedDependencies = dependencyManagement == null ? null : dependencyManagement.getDependencies();
            MavenSession session = legacySupport.getSession();
            if (session != null) {
                pomRepositories = session.getProjects().stream()
                        .filter(p -> artifact.equals(p.getArtifact()))

                resp.flushBuffer();
                return null;
            }
            req.getSession().setAttribute( "NtlmHttpAuth", ntlm );
        } else {
            if (!skipAuthentication) {
                HttpSession ssn = req.getSession(false);
                if (ssn == null || (ntlm = (NtlmPasswordAuthentication)
                            ssn.getAttribute("NtlmHttpAuth")) == null) {

        boolean missing = event.getFile() == null;
        if (missing) {
            // missing artifact - let's track the path anyway
            File dir = event.getSession().getLocalRepository().getBasedir();
            dir = new File(
                    dir, event.getSession().getLocalRepositoryManager().getPathForLocalArtifact(event.getArtifact()));
            trackingDir = dir.getParentFile().toPath().resolve(".tracking");
        } else {

            cacheKey = new Key(session, request);

            Object obj = cache.get(session, cacheKey);
            if (obj instanceof Record) {
                Record record = (Record) obj;
                result.setVersion(record.version);
                result.setRepository(
                        getRepository(session, request.getRepositories(), record.repoClass, record.repoId));
                return result;
            }
        }

                resp.flushBuffer();
                return null;
            }
            req.getSession().setAttribute("NtlmHttpAuth", ntlm);
        }
        else {
            if ( !skipAuthentication ) {
                HttpSession ssn = req.getSession(false);
                if ( ssn == null || ( ntlm = (NtlmPasswordAuthentication) ssn.getAttribute("NtlmHttpAuth") ) == null ) {