I am planning to use the Shibboleth SSO Service Provider in my application, which is explained here. It is mentioned, that after a successful login, user information can be
"read from the webserver environment, e.g. with
$_SERVER['mail']
in PHP".
How do I accomplish this in Java with TomEE?
I am using Apache Web Server in combination with Tomcat, such that servlet requests are forwarded to Tomcat. Is it even possible to access the Apache environment?