@Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        return asListHtml(this::saveToken);
    }

    @Execute
    @Secured({ ROLE })
    public ActionResponse upload(final UploadForm form) {
        validate(form, messages -> {}, () -> asListHtml(null));
        verifyTokenKeep(() -> asListHtml(this::saveToken));

        String header = null;

            }, this::asListHtml);
        }
    }

    // ===================================================================================
    //                                                                              JSP
    //                                                                           =========

    private HtmlResponse asListHtml() {

            }, this::asListHtml);
        }
    }

    // ===================================================================================
    //                                                                              JSP
    //                                                                           =========

    private HtmlResponse asListHtml() {

            }, this::asListHtml);
        }
    }

    // ===================================================================================
    //                                                                              JSP
    //                                                                           =========

    private HtmlResponse asListHtml() {