[FIXED] How do I uninstall ruby-runtime plugin from Jenkins running on Java 11

Issue

ruby-runtime is deprecated and fails to initialize when Jenkins is run on Java 11 The Jenkins Plugins UI does not have buttons to uninstall a plugin when it fails to initialize. This is causing garbage logs that I'd like to go away. So, how do I properly manually uninstall a plugin like ruby-runtime?

I'm running Jenkins from an apt install on Ubuntu 18.04

Solution

In order to remove the plugin perform the following steps:

• stop jenkins
• go to your JENKINS_HOME/plugins folder and remove both the ruby-runtime/ folder and the ruby-runtime.jpi file
• start jenkins

Answered By - romi