[keycloak-user] Problem with Spring WEB application using Keycloak + Spring Security Adapter in Multi Tenancy mode

Hello, I am trying to configure a Spring WEB application using Keycloak + Spring Security Adapter in Multi Tenancy mode but i encountered some problems. I followed the instuctions of the Keycloak documentation (https://www.keycloak.org/docs/latest/securing_apps/index.html#_spring_sec... and https://www.keycloak.org/docs/latest/securing_apps/index.html#_multi_tenancy) I created a simple web application (SpringSecurity_HelloWorld) with two pages, one public page (hello.jsp) and a protected one (admin.jsp). To implementy the Multi tenancy, I created the PathBasedKeycloakConfigResolver java class and I changed the spring-security.xml file as requested to link this class to the Spring context. The .zip from follow Google Drive Link contains a copy of the test project: https://drive.google.com/file/d/1YH2phrXlx9yc1vexXkNCMKoOnDBEmBI2/view?us... This is what happens when the app is running: Accessing url localhost:8080/SpringSecurity_HelloWorld/{realm}/admin, (i.e. the protected page) the following steps are executed: 1 As expected, the method resolve(..) of my PathBasedKeycloakConfigResolver class is called, and my code correctly extracts the {realm} from the url, creates the corresponding KeycloakDeployment object, returning it to the caller 2 The browser receives a redirect (HTTP 302) to the location localhost:8080/SpringSecurity_HelloWorld/sso/login and executes the redirect 3 The method resolve(..) of PathBasedKeycloakConfigResolve is called again with the url localhost:8080/SpringSecurity_HelloWorld/sso/login as argument. This is very surprising to me because this url doesn't contains the {realm} part and I am wondering how the method resolve() could cope with this. It is supposed to return the KeycloakDeployment object corresponding to the requast realm but this is not possible now. For what I understand from documentation the second call to the resolve() method is just wrong .... why the the {realm} is missing ? I suspect there is some configuratione error in my project but I can't find anything wrong. Thanks to all Mattia Bello Developer [Descrizione: cid:image001.jpg@01CEB308.188717E0] Horsa S.p.A. Via Cadorna, 67 Vimodrone (MI) Mobile (+39) 347 37 64 875 www.horsa.it<http://www.horsa.it/>