Looks like Hudson doesn't have the JGit library installed. You should
check the installation of the Hudson plugin and make sure you
installed the JGit library correctly.
I don't know the versions of the plugins in Hudson very well, but with
Jenkins there was an issue with a release of the Git plugin if you
used it with a specific version of the Gerrit trigger plugin (due to
the change of the package names in newer JGit libs). Do you have the
latest versions of both plugins installed?
Manuel
The Gerrit Trigger plug-in maintained compatibility with both versions as long as possible, but when the Jenkins Git plug-in updated the JGit dependency to a newer version (with the new eclipse namespace), the Gerrit Trigger plug-in followed; hence lost its compatibility with the Hudson fork of the Git Plug-in.
Commit of interest:
https://github.com/jenkinsci/gerrit-trigger-plugin/commit/15ad4e2cab5037bebab4fdc9bc13a8405478dcba#gerrithudsontrigger/pom.xml
Best regards
Gustaf
who have correct versions for the Hudson plugins to work correctly
using normal config parameters? I am working on Hudson.