Any Suggestions to study for GSSP

[Prajwal Shetty]

Hi Ranchers,

I was planning to study for GSSP Java Certification,
https://www.giac.org/certification/secure-software-programmer-java-gssp-java


I searched a lot for study material but the only option i found was to take the SANS Training's which are pretty expensive,
https://www.sans.org/course/secure-coding-java-jee-developing-defensible-applications#results

Can you please assist me with some books to refer (if there are any) ?

Thanks in Advance.