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  1. Jenkins
  2. JENKINS-20950

NPE during Discard Old Data

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      A user of 1.509.3 with the Metadata plugin formerly installed had some data listed in Discard Old Data screen, as expected:

      hudson.model.FreeStyleBuild
      jobname #123
      CannotResolveClassException: com.sonyericsson.hudson.plugins.metadata.model.MetadataBuildAction

      He clicked Discard and received an error:

      java.lang.NullPointerException
	at hudson.model.AbstractItem.getRootDir(AbstractItem.java:162)
	at hudson.model.Items.getConfigFile(Items.java:236)
	at hudson.model.AbstractItem.getConfigFile(AbstractItem.java:461)
	at hudson.model.AbstractItem.save(AbstractItem.java:456)
	at hudson.model.Job.save(Job.java:152)
	at hudson.model.AbstractProject.save(AbstractProject.java:268)
	at hudson.diagnosis.OldDataMonitor.doDiscard(OldDataMonitor.java:275)

      This means that there is an AbstractProject whose parent is null. Most likely a serialized MetadataBuildAction was persisting a Run which was not identical to the build to which it had been added (this is possible due to lazy-loading), so XStream did not use a backreference but instead tried to serialize the whole build. When deserialized, the orphaned build would have had a bogus parent project.

      The solution in 1.519+ (or 1.509.3/4) is simple: use the new RunAction2. There is no alternative available for older versions of Jenkins.

          [JENKINS-20950] NPE during Discard Old Data

          Jesse Glick created issue -
          Jesse Glick made changes -
          Link New: This issue is related to JENKINS-17125 [ JENKINS-17125 ]
          Jesse Glick made changes -
          URL New: https://github.com/jenkinsci/metadata-plugin/pull/2
          Jesse Glick made changes -
          Status Original: Open [ 1 ] New: In Progress [ 3 ]
          Jesse Glick made changes -
          Link New: This issue is related to JENKINS-18809 [ JENKINS-18809 ]
          SCM/JIRA link daemon made changes -
          Resolution New: Fixed [ 1 ]
          Status Original: In Progress [ 3 ] New: Resolved [ 5 ]
          Jesse Glick made changes -
          Link New: This issue is blocking JENKINS-19544 [ JENKINS-19544 ]
          R. Tyler Croy made changes -
          Workflow Original: JNJira [ 152761 ] New: JNJira + In-Review [ 194345 ]
          Jesse Glick made changes -
          Link New: This issue relates to JENKINS-45892 [ JENKINS-45892 ]

            rsandell rsandell
            jglick Jesse Glick
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              Created:
              Updated:
              Resolved: