You can use this page to email Coté about The Java Authentication and Authorization Service (JaaS) in Action.
Please include an email address so the author can respond to your query
This message will be sent to Coté
This site is protected by reCAPTCHA and the Google
Terms of Service apply.
Covers the Java Authentication and Authorization Service (JAAS). This is from 2005, so it's out of date.
Find the source code here: https://github.com/cote/jaasbook