[keycloak-user] keycloak-spring-security-adapter : KeycloakAuthenticationProcessingFilter doesn’t skip user authentication if it's already authenticated

Hi, While evaluating keycloak spring security adapter for one of my requirement (as below) I realized KeycloakAuthenticationProcessingFilter doesn’t skip authentication if user is already authenticated in other/prev filters. Requirement I’ve – · Service-to-service authentication. · Support multiple authentication schemes in fallback o OAuth (Using keycloak) o Basic (Application maintains username/password) Problems I see – · KeycloakAuthenticationProcessingFilter doesn’t have mechanism to skip authentication if user already authenticated. Like – protected boolean requiresAuthentication(HttpServletRequest request, HttpServletResponse response) { Authentication existingAuth = SecurityContextHolder.getContext() .getAuthentication(); if (existingAuth == null || !existingAuth.isAuthenticated()) { return true; } return false; } Please suggest me If there is any configuration in keycloak to support it? Thanks, Rahul Pharande