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  1. Jenkins
  2. JENKINS-66527

intermittent NoClassDefFoundError: Could not initialize class hudson.model.Hudson$MasterComputer

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    • Icon: Bug Bug
    • Resolution: Won't Fix
    • Icon: Critical Critical
    • core
    • None
    • LTS 2.303.1

      About half of the times Jenkins fails to start.

      The web UI displays:

      java.lang.NoClassDefFoundError: Could not initialize class hudson.model.Hudson$MasterComputer
  at jenkins.model.Jenkins.createComputer(Jenkins.java:3222)
  at hudson.model.AbstractCIBase.createNewComputerForNode(AbstractCIBase.java:162)
  at hudson.model.AbstractCIBase.updateComputer(AbstractCIBase.java:148)
  at hudson.model.AbstractCIBase.access$000(AbstractCIBase.java:48)
  at hudson.model.AbstractCIBase$2.run(AbstractCIBase.java:254)
  at hudson.model.Queue._withLock(Queue.java:1398)
  at hudson.model.Queue.withLock(Queue.java:1274)
  at hudson.model.AbstractCIBase.updateComputerList(AbstractCIBase.java:240)
  at jenkins.model.Jenkins.updateComputerList(Jenkins.java:1670)
  at jenkins.model.Jenkins.<init>(Jenkins.java:1023)
  at hudson.model.Hudson.<init>(Hudson.java:86)
  at hudson.model.Hudson.<init>(Hudson.java:82)
  at hudson.WebAppMain$3.run(WebAppMain.java:298)
Caused: hudson.util.HudsonFailedToLoad
  at hudson.WebAppMain$3.run(WebAppMain.java:312)

      The log contains dozens of exceptions and stacktraces.

      Restarting often resolves the problem until the next time the service is restarted.

      This occurred after upgrading from 2.263.3 to 2.303.1

      The server was already running with OpenJDK11. That has not changed.

       

      Even a successful start results in 82345 lines of logging including 86 to 279 exceptions

            Unassigned Unassigned
            bram_mertens Bram Mertens
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              Created:
              Updated:
              Resolved: