Prepare for Java 25 release Sep 16, 2025

[MarkEWaite]

Prepare for Java 25 release Sep 16, 2025

Java 25 is the next Java Long Term Support release. It is scheduled to release Sep 16, 2025. The Jenkins project intends to support new Java LTS releases soon after they are available. The initial goal is to have Jenkins core and the top 200 plugins compiling and testing with Java 25 by Oct 31, 2025.

Without these changes, the plugin does not compile with Java 24. Since we can expect that Java 25 will be a superset of Java 24, this update will help prepare the plugin to eventually be compiled and tested with Java 25.

The changes include:

• Update parent pom from 5.5 to 5.18 (most recent parent pom)
• Remove 3 spotbugs suppressions that are no longer necessary

Testing done

Confirmed that mvn clean verify passes with the changes.

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests that demonstrate the feature works or the issue is fixed

[daniel-beck]

Will review and possibly merge towards the next release that happens anyway.

[daniel-beck]

Superseded by #180.

[daniel-beck]

Prepare for Java 25 release

Does jenkinsci/plugin-pom#1175 mean this PR was incomplete and needs another followup?

[MarkEWaite]

Does jenkinsci/plugin-pom#1175 mean this PR was incomplete and needs another followup?

Yes, if your expectation was that this PR was all that was required to compile and test the plugin with Java 25, then this PR was incomplete. This PR was known to not be enough to compile and test the plugin with Java 25. That's why I described it with the phrase:

Since we can expect that Java 25 will be a superset of Java 24, this update will help prepare the plugin to eventually be compiled and tested with Java 25.

The Java byte code manipulation libraries used to compile and test Jenkins plugins need to support Java 25.

Tools that use ASM (like license maven plugin and spotless) will need to update to ASM 9.8. License maven plugin 184.v19c87b_6b_a_9a_c uses ASM 9.8 but is not yet included in a released pom file. The palantir Java formatter we use inside the spotless Maven plugin needs to be updated to 2.73.0 that was released last week (at least for the git client plugin use of spotless).

Pull requests for the Palantir Java Format upgrade have been submitted as:

• Use Palantir Java Format 2.73.0 pom#702
• Use Palantir Java Format 2.73.0 plugin-pom#1176

Tools that use bytebuddy like mockito need to be using bytebuddy 1.17.5 or later for Java 25 support. The mockito 5.18.0 release currently available from the plugin pom is already using bytebuddy 1.17.5.

[daniel-beck]

I see, thanks for the clarification.