Due to some maintenance issues, this service has been switched in read-only mode, you can find more information about the why

and how to migrate your plugin documentation in this blogpost

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This page is a collaborative entrypoint for developer resources about developing and testing Jenkins to run on Java 11.

This page is not designed to receive status updates for user-facing issues. But you are more than welcome to check and report such issues so that they show on the dedicated Known Java 11 Compatibility issues wiki page. 

How to

develop and test your plugin for running on Java 11

Use or update to plugin-pom:3.29+

https://github.com/jenkinsci/plugin-pom/blob/master/CHANGELOG.md#329 3.29 contains some updates to be able to build and run your plugins using Java 11.

Release a plugin specifically for Java 11

Current intermediate solution

First, please avoid doing this.

If you really think you have a case where you need it, we encourage you to come over the Jenkins developers mailing list to expose your case and see if we can find another way.

In any case, the strongly recommended way to handle this is:

Long term solution

The long-term solution is already on its way, but is not delivered yet. It's partly delivered by you bumping to the last 3.29+ parent pom so your plugin embeds a "minimum Java" metadata, plus adapting Jenkins core to use this metadata to filter out releases for a version of Java that is higher than the current runtime. Follow  JENKINS-20679 - Getting issue details... STATUS  and  JENKINS-55048 - Getting issue details... STATUS  if you are interested.

Run Jenkins using Java 11

WIP: Stay tuned: an article is planned to land on jenkins.io in the next hours/days (smile).

Run Plugin Compat Tester (aka PCT) using Java 11

Documented in the PCT repository: https://github.com/jenkinsci/plugin-compat-tester#running-pct-with-custom-java-versions

Run Acceptance Test Harness (aka ATH) using Java 11

Documented on the ATH repository: https://github.com/jenkinsci/acceptance-test-harness/blob/master/docs/JAVA11.md

Known developer tools issues

Please add known issues here. The preferred way is to create or find the associated JIRA in the Jenkins Issue Tracker, and add the LABEL and it will automatically show up in the list below.

If you cannot create a JIRA issue, please still feel free to add notes about your findings below.

(associated JIRA board for the following filter)

T Key Component/s Summary P Status released as

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