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      Description

      If you enable remote polling in the Git Plugin, the project will never poll successfully, and stops other projects polling as well.

      In GitSCM, requiresWorkspaceForPolling() returns false if remotePoll is enabled.
      https://github.com/jenkinsci/git-plugin/blob/git-1.1.12/src/main/java/hudson/plugins/git/GitSCM.java#L582

      This mean that in the jenkins-core AbstractProject (at least on the LTS branch), a null value is passed in for the workspace parameter to SCM.poll()
      https://github.com/jenkinsci/jenkins/blob/jenkins-1.409.1/core/src/main/java/hudson/model/AbstractProject.java#L1305

      This ends up in 'compareRemoteRevisionWith' back in GitSCM. At line 651, the call to 'workingDirectory(workspace)' returns null - because null was passed in as a param from AbstractProject. This means that at line 657, the call to !!workingDirectory.exists() results in a null pointer.

      Suggested fix: remove the remotePoll, or make it require a workspace to do the polling.

      Stacktrace:
      Sep 2, 2011 2:41:50 PM hudson.triggers.SCMTrigger$Runner runPolling
      SEVERE: Failed to record SCM polling
      java.lang.NullPointerException
      at hudson.plugins.git.GitSCM.compareRemoteRevisionWith(GitSCM.java:657)
      at hudson.scm.SCM._compareRemoteRevisionWith(SCM.java:354)
      at hudson.scm.SCM.poll(SCM.java:371)
      at hudson.model.AbstractProject.poll(AbstractProject.java:1305)
      at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:420)
      at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:449)
      at hudson.triggers.SCMTrigger.run(SCMTrigger.java:103)
      at hudson.triggers.SCMTrigger.run(SCMTrigger.java:83)
      at hudson.triggers.Trigger$1.run(Trigger.java:229)
      at hudson.DependencyRunner.run(DependencyRunner.java:73)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
      at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
      at java.util.concurrent.FutureTask.run(FutureTask.java:138)
      at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
      at java.lang.Thread.run(Thread.java:662)

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            robertdw robertdw created issue -
            abayer Andrew Bayer made changes -
            Field Original Value New Value
            Assignee abayer [ abayer ] Kohsuke Kawaguchi [ kohsuke ]
            marc_guenther Marc G√ľnther made changes -
            Link This issue is related to JENKINS-10131 [ JENKINS-10131 ]
            scm_issue_link SCM/JIRA link daemon made changes -
            Status Open [ 1 ] Resolved [ 5 ]
            Resolution Fixed [ 1 ]
            rtyler R. Tyler Croy made changes -
            Workflow JNJira [ 141088 ] JNJira + In-Review [ 189421 ]
            markewaite Mark Waite made changes -
            Status Resolved [ 5 ] Closed [ 6 ]

              People

              • Assignee:
                kohsuke Kohsuke Kawaguchi
                Reporter:
                robertdw robertdw
              • Votes:
                2 Vote for this issue
                Watchers:
                5 Start watching this issue

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                • Created:
                  Updated:
                  Resolved: