mss = new MavenSession(repoSession, ms.getRequest(), ms.getResult());
        } else {
            mss = ms;
        }
        return newSession(mss, repositories);
    }

    protected Session newSession(MavenSession mavenSession, List<RemoteRepository> repositories) {
        return new DefaultSession(
                nonNull(mavenSession),
                getRepositorySystem(),
                repositories,

        this.mavenRepositorySystem = mavenRepositorySystem;
        this.lookup = lookup;
        this.runtimeInformation = runtimeInformation;
    }

    public InternalSession newSession(MavenSession mavenSession) {
        InternalSession session = new DefaultSession(
                mavenSession, repositorySystem, null, mavenRepositorySystem, lookup, runtimeInformation);

        MavenSession session = new MavenSession(
                getContainer(), repoSession, new DefaultMavenExecutionRequest(), new DefaultMavenExecutionResult());
        session.setSession(defaultSessionFactory.newSession(session));

        new DefaultSession(session, null, null, null, null, null);

        repoSession.setCache(new DefaultRepositoryCache());

    protected void initRepoSession(ProjectBuildingRequest request) {
        File localRepo = new File(request.getLocalRepository().getBasedir());
        DefaultRepositorySystemSession session = MavenRepositorySystemUtils.newSession();
        session.setLocalRepositoryManager(new LegacyLocalRepositoryManager(localRepo));
        request.setRepositorySession(session);

  // string is empty, no mutation has occurred. Otherwise the string is a
  // description of the mutation suitable for returning to the user.
  //
  // Sessions are added to this map in TF_NewSession, and removed in
  // TF_DeleteSession.
  // TF_Graph may only / must be deleted when
  //   sessions.size() == 0 && delete_requested == true
  //
  // TODO(b/74949947): mutations currently trigger a warning instead of a bad