String c2 = s2 == null ? "" : s2.trim();
        return c1.equals(c2);
    }

    private static Severity getSeverity(ModelBuildingRequest request, int errorThreshold) {
        return getSeverity(request.getValidationLevel(), errorThreshold);
    }

    private static Severity getSeverity(int validationLevel, int errorThreshold) {
        if (validationLevel < errorThreshold) {
            return Severity.WARNING;