[JENKINS-64037] Remove Stapler JRebel from the Jenkins core

[jenkins-infra-bot]

Stapler JRebel used to support hot reloading of classes when developing Jenkins in some conditions.: https://wiki.jenkins.io/display/JENKINS/Developing+with+JRebel . This flow has not been used for long time, and it is unlikely that it can operate properly anymore.  I suggest removing the dependency on JRebel to reduce the Jenkins core size and to prevent transitive dependency issues.

Example of a transitive dependency involving JRebel:
Require upper bound dependencies error for com.google.guava:guava:11.0.1 paths to dependency are:
+-com.cloudbees.codeship.jenkins-support:jenkins-pipeline-step-maven:1.0-beta-19
+-io.jenkins.jenkinsfile-runner:setup:1.0-beta-19
+-org.jenkins-ci.main:jenkins-core:2.249.1
+-com.google.guava:guava:11.0.1
and
+-com.cloudbees.codeship.jenkins-support:jenkins-pipeline-step-maven:1.0-beta-19
+-io.jenkins.jenkinsfile-runner:setup:1.0-beta-19
+-org.jenkins-ci.main:jenkins-core:2.249.1
+-org.kohsuke.stapler:stapler-jrebel:1.260
+-org.kohsuke.stapler:stapler:1.260
+com.google.guava:guava:11.0.1 (managed) <- com.google.guava:guava:27.1-jre

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Originally reported by oleg_nenashev, imported from: Remove Stapler JRebel from the Jenkins core

• status: Open
• priority: Minor
• component(s): core
• resolution: Unresolved
• votes: 0
• watchers: 1
• imported: 2025-11-24

Raw content of original issue

Stapler JRebel used to support hot reloading of classes when developing Jenkins in some conditions.: https://wiki.jenkins.io/display/JENKINS/Developing+with+JRebel . This flow has not been used for long time, and it is unlikely that it can operate properly anymore.  I suggest removing the dependency on JRebel to reduce the Jenkins core size and to prevent transitive dependency issues.

Example of a transitive dependency involving JRebel:
Require upper bound dependencies error for com.google.guava:guava:11.0.1 paths to dependency are:
+-com.cloudbees.codeship.jenkins-support:jenkins-pipeline-step-maven:1.0-beta-19
  +-io.jenkins.jenkinsfile-runner:setup:1.0-beta-19
    +-org.jenkins-ci.main:jenkins-core:2.249.1
      +-com.google.guava:guava:11.0.1
and
+-com.cloudbees.codeship.jenkins-support:jenkins-pipeline-step-maven:1.0-beta-19
  +-io.jenkins.jenkinsfile-runner:setup:1.0-beta-19
    +-org.jenkins-ci.main:jenkins-core:2.249.1
      +-org.kohsuke.stapler:stapler-jrebel:1.260
        +-org.kohsuke.stapler:stapler:1.260
          +com.google.guava:guava:11.0.1 (managed) <- com.google.guava:guava:27.1-jre