Migrate to Jakarta EE to support spring boot 3.0

[jiec-msft]

Hey team,

By reading the Spring Boot 3.0 Migration Guide, in spring boot 3.0, javax.annotation should be upgraded to jakarta.annotation. Such as in the code:

java/util/src/main/java/io/kubernetes/client/util/Strings.java

Line 15 in 229d876

import javax.annotation.Nullable;

But, looks like this project still depends on javax.annotation:javax.annotation-api:1.3.2. So will this project compatible with Spring Boot 3.0? Or can we update this dependency with Jakarta EE?

[brendandburns]

There's a duplicate discussion here:
#2606

I'm going to close this issue in favor of that one.

The tl;dr; is that we're open to migrating, but it requires work in the upstream code generator that someone needs to do.

Regarding Spring Boot 3.0 as far as I know it also requires an update to JDK 17 and at this time we have no plans to require JDK 17. This is discussed in this issue:

#2452

I'm happy to have further discussions or proposals in those issues.