Class Option Recommendations

Below, is a list of classes that may be updated with final or abstract.
The red stars mention possible upgrade by using final or abstract keywords; The green stars mention a valid absence of the option (an extended class, that can't be final, ...); The absence of star report currently configured classes. .

Final Abstract Name Path
class xhttp \xhttp
class wallExpand \wallexpand
class SMTP \smtp
class PHPMailer \phpmailer
class phpmailerException extends Exception \phpmailerexception
class POP3 \pop3
class AdminUser \adminuser
class Wall_Admin \wall_admin
class oauthLogin \oauthlogin
class oauth_session_value_class \oauth_session_value_class
class oauth_client_class \oauth_client_class
class http_class \http_class