ProblemCollector<ModelProblem> getProblemCollector();

    default boolean hasErrors() {
        return getProblemCollector().hasErrorProblems();
    }

    default boolean hasFatalErrors() {
        return getProblemCollector().hasFatalProblems();
    }

    default void add(BuilderProblem.Severity severity, ModelProblem.Version version, String message) {

        this.problems = result.getProblems();

        for (ModelProblem problem : this.problems) {
            severities.add(problem.getSeverity());
        }
    }

    public boolean hasFatalErrors() {
        return severities.contains(ModelProblem.Severity.FATAL);
    }

    public boolean hasErrors() {

            throw new IllegalStateException();
        }
    }

    protected boolean hasFatalErrors(ModelProblemCollectorExt problems) {
        if (problems instanceof DefaultModelProblemCollector collector) {
            return collector.hasFatalErrors();
        } else {
            // the default execution path only knows the DefaultModelProblemCollector,