Implementation of CAS SSO

[azer tyuiop]

Hello I hope you are well, in any case I come back to you with a huge disappointment and fear of the fact that I still did not manage to make CAS SSO work for the authentication of web applications. Indeed, with the new version of CAS-OVERLAY-TEMPLATE, I encountered several difficulties which are:

- All the tutorials on the Internet and that you provided me concerning the complete implementation of CAS are obsolete because:
     * The CAS versions used are obsolete
     * The configuration files like "cas.properties" for the connection of CAS to LDAP exist.
     * The implementation is done with Tomcat 7 - 9; jdk8-11 and cas 5.x.x - 6.3.x; Debian 10 and other OS like RED HAT
     * Installation and configuration of clients and applications is easier and more functional
- I can't even clone the old CAS versions on github to comply with the tutorials which use old CAS versions

Please I really need urgent help as I am currently a third year undergraduate student and this( Implementing CAS SSO) is my thesis topic for my defense and the defense date is approaching so I am really stressed. If possible, I would like you to make a tutorial with the new version of CAS 6.6.7 and LDAP with java-cas-client or pac4j in order to help me to realize this project please.

Attached is a pdf with screenshots of the errors I got.

I am looking forward to your help. Thank you in advance!