Erro de acesso ao projeto de inicialização de múltiplas portas do Spring boot: "Caractere inválido encontrado no nome do método. Os nomes dos métodos HTTP devem ser tokens"

Método de escrita springboot2 de configuração multiporta

    @Bean
    public TomcatServletWebServerFactory servletContainer() {
        TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory() {
            @Override
            protected void postProcessContext(Context context) {
                SecurityConstraint constraint = new SecurityConstraint();
                constraint.setUserConstraint("CONFIDENTIAL");
                SecurityCollection collection = new SecurityCollection();
                collection.addPattern("/*");
                constraint.addCollection(collection);
                context.addConstraint(constraint);
            }
        };
        tomcat.addAdditionalTomcatConnectors(additionalConnector());
        return tomcat;
    }

    private Connector[] additionalConnector() {
        if (StringUtils.isBlank(this.additionalPorts)) {
            return null;
        }
        String[] ports = this.additionalPorts.split(",");
        List<Connector> result = new ArrayList<>();
        for (String port : ports) {
            Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
            connector.setPort(Integer.valueOf(port));
            result.add(connector);
        }
        return result.toArray(new Connector[]{});
    }

application.properties

    server.additionalPorts=81,83,85

Início normal

.....
2019-06-04 15:25:30.743  INFO 3028 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2019-06-04 15:25:30.960  INFO 3028 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) 81 (http) 83 (http) 85 (http) with context path ''
....

Erro de acesso

Invalid character found in method name. HTTP method names must be tokens 

Solução

 配置里把这句注释了，“CONFIDENTIAL” 不明白的翻译下?
//constraint.setUserConstraint("CONFIDENTIAL");