It is possible to support the new Subject API methods without lifting the minimum version, e.g see related/equivalent changes made for doing that in https://issues.apache.org/jira/browse/ARTEMIS-5711 to enable Java 25 support whilst retaining behavior for existing users on e.g. 17 or 21 (discussed on the list previously in https://lists.apache.org/thread/7vspfpmfnfqd6fmvpjzm0kr59b5dm9j2 around related requirement for using Java 25 during release)
Though I'd love to upgrade, I'm not sure most users are really going to be ready for a JDK21 minimum quite yet. Definitely feels more like a change for a new release stream, only made with full expectation of supporting the previous stream concurrently as many cant make the jump yet. E.g. even the new Spring major versions still look to be sticking with Java 17 minimum for now, and they aggressively moved to a Java17 minimum a full 3 years ago now, which I think is telling. Moving to 21 minimum would likely preclude them from upgrading to those new releases for their in-tree bits, for both the current and new majors. Most of the frameworks are still based at 17 so it kinda feels like we still should for now. Robbie On Thu, 13 Nov 2025 at 17:29, Jean-Louis Monteiro <[email protected]> wrote: > > Hi Matt and all, > > I pulled Matt's branch to start building on Java 25. Jenkins is currently > starting to build. > > I'd like to push some PR's to Matt's branch, but would like to open the > discussion on moving main to Java 21. > > We are currently in Java 17 for compilation. But we will need an API from > Java 18+ (Subject.current() for instance to workaround SecurityManager > removal). I don't think it makes much sense to move from Java 17 to Java 18 > and I do think we should move to Java 21 instead. We will need Virtual > Threads at some point anyways and they are part of Java 21. > > I'd also like to yank Java 17 from jenkinsfile and keep only 21 and 25. > > I have everything ready and I'm building from there. > Thoughts? > > > > -- > Jean-Louis Monteiro > http://twitter.com/jlouismonteiro > http://www.tomitribe.com --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] For further information, visit: https://activemq.apache.org/contact
