Thanks Tim for helping me.
In fact, I'm trying to attend the admin welcome file, it is located under admin folder (
WEB-INF/admin/admin.jsp) and, when running the application, I got this url
http://localhost:8080/AuthencateApp/admin/admin.jsp
with the login form.
After submitting the correct login/password I got the error page with this url
http://localhost:8080/AuthencateApp/admin/j_security_check
I tested so many times different users with group-name = "appadmin" by creating them in realms/file, but always I'm having the same error.
Is there any way to know the cause of this problem?
Thanks