We upgraded our AEMasCS to Java21

[#1]

We upgraded our AEMasCS to Java21  by Sarav Prakash

Overview

Sharing the steps followed, problems faced and fixes workarounds made.

https://medium.com/@bsaravanaprakash/we-upgraded-our-aemascs-to-java21-0c6b4a90f76d

Q&A

Please use this thread to ask questions relating to this article

[#2]

Thanks for sharing

[#3]

Thank you @sarav_prakash 

[#4]

@sarav_prakash Really appreciate you documenting your team’s journey with the Java 21 upgrade. Posts like this save others a lot of trial and error. Reading through it made me wonder: if someone is planning their own upgrade, what’s the one pitfall you’d suggest they watch out for first, before anything else? Wondering what stood out to you as the biggest gotcha.

[#5]

Hey @kautuk_sahni , thanks for feedback. Sure, slf4j was the biggest gotcha. After upgrade, blindly junits ll start to fail. Error trace not clear, developers would keep wondering why it fails. Just switching the deprecated library, no additional fixes required, all errors gets wiped off. It took sometime to chase this rootcause.

Other issues, developer can easily spot out and ll resolve.