* an empty string that by definition denotes the super POM.
     *
     * @return The model identifiers from the lineage of models, never {@code null}.
     */
    @Nonnull
    List<String> getModelIds();

    /**
     * Gets the file model.
     *
     * @return the file model, never {@code null}.
     */
    @Nonnull
    Model getFileModel();

    /**

     *
     * @return The identifier of the POM or an empty string if not known, never {@code null}.
     */
    public String getModelId() {
        if (result == null || result.getModelIds().isEmpty()) {
            return "";
        }
        return result.getModelIds().get(0);
    }

    /**
     * Gets the problems that caused this exception.
     *
     * @return The problems that caused this exception, never {@code null}.
     */

        this.effectiveModel = result.getEffectiveModel();
        this.fileModel = result.getFileModel();
        this.problems.addAll(result.getProblems());

        for (String modelId : result.getModelIds()) {
            this.modelIds.add(modelId);
            this.rawModels.put(modelId, result.getRawModel(modelId).orElseThrow());
            this.activePomProfiles.put(modelId, result.getActivePomProfiles(modelId));
        }

        private void initParent(MavenProject project, Map<File, MavenProject> projects, ModelBuilderResult result) {
            Model parentModel = result.getModelIds().size() > 1
                            && !result.getModelIds().get(1).isEmpty()
                    ? result.getRawModel(result.getModelIds().get(1)).orElse(null)
                    : null;

            if (parentModel != null) {

        add(problem);
    }

    public ModelBuilderException newModelBuilderException() {
        ModelBuilderResult result = this.result;
        if (result.getModelIds().isEmpty()) {
            DefaultModelBuilderResult tmp = new DefaultModelBuilderResult();
            tmp.setEffectiveModel(result.getEffectiveModel());
            tmp.setProblems(getProblems());