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  1. Jenkins
  2. JENKINS-30890

Getting "java.lang.ClassNotFoundException: com.jcraft.jsch.Buffer" error

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Details

    • Bug
    • Status: Resolved (View Workflow)
    • Minor
    • Resolution: Duplicate
    • gerrit-trigger-plugin, OBSOLETE-gerrit-plugin
    • None
    • Ubuntu 12.04.2 LTS
      Jenkins ver. 1.633
      Gerrit Trigger 2.14.0 (same error with 2.16.0)
      GIT client plugin 1.19.0
      GIT plugin 2.4.0
      java version "1.7.0_51"

    Description

      After updating our Jenkins server and all plugins I get the "java.lang.ClassNotFoundException: com.jcraft.jsch.Buffer" exception when using the Gerrit Trigger plugin - e.g. Clicking on the "Query and Trigger Gerrit Patches" menu entry

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JENKINS-30820 plugin failures after upgrade of bytecode-compatability-transformer

          • Major - Major loss of function.
          • Closed

          Activity

            Ascending order - Click to sort in descending order
            cweinreben Christian Rataj-Weinreben added a comment -

            After downgrading our Jenkins server from 1.633 to 1.624 the Gerrit trigger plugin works again (also with Gerrit Trigger version 2.16.0).

            cweinreben Christian Rataj-Weinreben added a comment - After downgrading our Jenkins server from 1.633 to 1.624 the Gerrit trigger plugin works again (also with Gerrit Trigger version 2.16.0).
            orgads Orgad Shaneh added a comment -

            I confirm this happens to me too. Regression from 1.632 -> 1.633.

            orgads Orgad Shaneh added a comment - I confirm this happens to me too. Regression from 1.632 -> 1.633.
            cweinreben Christian Rataj-Weinreben added a comment -

            After Orgad Shaneh comment I have updated Jenkins. I can also confirm that the Gerrit Trigger version 2.16.0 still works with Jenkins 1.632 .

            cweinreben Christian Rataj-Weinreben added a comment - After Orgad Shaneh comment I have updated Jenkins. I can also confirm that the Gerrit Trigger version 2.16.0 still works with Jenkins 1.632 .
            tcollege Tim College added a comment -

            Confirmed here, too. Now to Google "how to downgrade Jenkins"

            tcollege Tim College added a comment - Confirmed here, too. Now to Google "how to downgrade Jenkins"
            cweinreben Christian Rataj-Weinreben added a comment -

            Sorry, forgot to post the temporary solution (if you have a Debian/Ubuntu) setup:

            cweinreben Christian Rataj-Weinreben added a comment - Sorry, forgot to post the temporary solution (if you have a Debian/Ubuntu) setup: from http://pkg.jenkins-ci.org/debian/ download the http://pkg.jenkins-ci.org/debian/binary/jenkins_1.632_all.deb using wget wget http://pkg.jenkins-ci.org/debian/binary/jenkins_1.632_all.deb Install the downloaded package sudo dpkg -i jenkins_1.632_all.deb
            tcollege Tim College added a comment - - edited

            Thanks. I'm on redhat, and the solution there is:

            yum downgrade jenkins

            Followed by disabling the repo for now.

            Downgrading fixes the issue for me, as well.

            tcollege Tim College added a comment - - edited Thanks. I'm on redhat, and the solution there is: yum downgrade jenkins Followed by disabling the repo for now. Downgrading fixes the issue for me, as well.
            danielbeck Daniel Beck added a comment -

            This issue duplicates JENKINS-30820. While this one has more watchers, the proposed fix(es) reference the other issue, so any progress should be tracked there.

            danielbeck Daniel Beck added a comment - This issue duplicates JENKINS-30820 . While this one has more watchers, the proposed fix(es) reference the other issue, so any progress should be tracked there.
            zerzuben Christian Zerzuben added a comment -

            As workaround I copied the jsch-0.1.53.jar to the lib folder of my tomcat. It seems to work...

            zerzuben Christian Zerzuben added a comment - As workaround I copied the jsch-0.1.53.jar to the lib folder of my tomcat. It seems to work...

            People

              Unassigned Unassigned
              cweinreben Christian Rataj-Weinreben
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              15 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: