if (request.getValidationLevel() >= ModelBuilderRequest.VALIDATION_LEVEL_MAVEN_2_0) {
            Severity errOn31 = getSeverity(request, ModelBuilderRequest.VALIDATION_LEVEL_MAVEN_3_1);

            validateBannedCharacters(
                    EMPTY, "version", problems, errOn31, Version.V20, m.getVersion(), null, m, ILLEGAL_VERSION_CHARS);