2023
Spilca - Spring Security in Action 2nd ed v07
    EE48E14DEB46F360725DF513EF0D765E
2020
Spilca - Spring Security in Action
    0774C860C43474D328096BDE5DD6233E
2018
John - Hands-On Spring Security 5 for Reactive Applications
    https://github.com/lynx-r/Hands-On-Spring-Security-5-for-Reactive-Applications
2017
Knutson - Spring Security 3rd ed
2016
Nachimuthu - 2016 - Spring Security Essentials