Avni-server Java upgrade

[mahalakshme]

Need:

OpenJDK 8 is maintained by RedHat. They will support Java 8 until 2026: https://access.redhat.com/articles/1299013

For Java 8, Oracle has announced it is offering ‘Extended Support’ up until December 2030. Extend Support is Oracle’s way of extending the shelf life of Premier beyond its deadline.

For this service, organizations using Oracle Java pay an additional fee: an extra 10% on the existing support fee in year one, an extra 20% in year two, and another 20% in year three, etc.

Analysis:

11, 17, 21 are the 3 Java LTS versions.

AC:

Upgrade server to Java 21 (if this is not possible, developer can decide to upgrade it to a different version) which is the latest LTS version and make sure all features(esp., sync) works as expected.

• requires springboot 3.2
• upgrade usages of Java language and API
• upgrade usages of SpringBoot API
• upgrade dependencies and libraries

Out of scope:

ETL and integration-server are in Java 17. Hence they need not be upgraded now.

[himeshr]

For upgradation of Hateoas to new version, which would be needed once we upgrade the springboot version, do refer to following docs:

• https://github.com/spring-projects/spring-hateoas/blob/main/etc/migrate-to-1.0.sh
• https://spring.io/blog/2019/03/05/spring-hateoas-1-0-m1-released

[petmongrels]

Things to test

• creation of rpm
• check auth
• custom UUID in mobile app api response is correct
• security, auth, spring related abstract classes have been removed now

major changes

• jakarta from javax
• hibernate user type approach change
• use of java.time.LocalDateTime