public static void putCustomLoginFormFields(final RequestContext context, final Map customLoginFormFields) {
        context.getFlowScope().put("customLoginFormFields", customLoginFormFields);
    }
Put custom login form fields.

@param context               the context
@param customLoginFormFields the custom login form fields
core/cas-server-core-web-api/src/main/java/org/apereo/cas/web/support/WebUtils.java