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Bug
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Resolution: Cannot Reproduce
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Major
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None
In the last 2-3 Jenkins updates we observe a problem restarting Jenkins instance.
Reproduction steps:
1. Run Jenkins a WAR ( java -jar jenkins.war & )
2. Safe restart Jenkins:
a) Enter <jenkins url>/restart and confirm the restart
b) Upgrade Jenkins via "Upgrade automatically" button
c) Update plugin(s) with "restart after installation" option
Expected behavior:
- Jenkins (upgrades or installs plugins and) restarts
Actual behavior:
- Jenkins shuts down the web UI
- Jenkins does not restart due to "Caused by: java.lang.UnsupportedOperationException
at java.util.concurrent.CopyOnWriteArrayList$COWIterator.remove" - Jenkins cannot open the UI anymore
Log:
Mar 28, 2016 9:09:49 AM hudson.WebAppMain$3 run
INFO: Jenkins is fully up and running
Mar 28, 2016 9:13:57 AM jenkins.model.Jenkins$26 run
SEVERE: Restarting VM as requested by mmaker
Mar 28, 2016 9:13:57 AM jenkins.model.Jenkins cleanUp
INFO: Stopping Jenkins
Mar 28, 2016 9:13:57 AM jenkins.model.Jenkins$22 onAttained
INFO: Started termination
Mar 28, 2016 9:13:57 AM jenkins.model.Jenkins$22 onAttained
INFO: Completed termination
Mar 28, 2016 9:13:57 AM jenkins.model.Jenkins _cleanUpDisconnectComputers
INFO: Starting node disconnection
Mar 28, 2016 9:13:58 AM hudson.TcpSlaveAgentListener$ConnectionHandler run
INFO: Accepted connection #1 from /10.5.1.212:59574
Mar 28, 2016 9:13:58 AM jenkins.model.Jenkins _cleanUpShutdownPluginManager
INFO: Stopping plugin manager
Mar 28, 2016 9:13:58 AM jenkins.model.Jenkins _cleanUpPersistQueue
INFO: Persisting build queue
Mar 28, 2016 9:13:58 AM jenkins.model.Jenkins _cleanUpAwaitDisconnects
INFO: Waiting for node disconnection completion
Mar 28, 2016 9:13:58 AM jenkins.model.Jenkins _cleanUpPluginServletFilters
SEVERE: Failed to stop filters
java.lang.UnsupportedOperationException
at java.util.concurrent.CopyOnWriteArrayList$COWIterator.remove(CopyOnWriteArrayList.java:1176)
at hudson.util.PluginServletFilter.cleanUp(PluginServletFilter.java:162)
at jenkins.model.Jenkins._cleanUpPluginServletFilters(Jenkins.java:3238)
at jenkins.model.Jenkins.cleanUp(Jenkins.java:2891)
at hudson.lifecycle.UnixLifecycle.restart(UnixLifecycle.java:70)
at jenkins.model.Jenkins$26.run(Jenkins.java:3808)
Mar 28, 2016 9:13:58 AM jenkins.model.Jenkins cleanUp
INFO: Jenkins stopped
Mar 28, 2016 9:13:58 AM hudson.init.impl.InstallUncaughtExceptionHandler$DefaultUncaughtExceptionHandler uncaughtException
SEVERE: A thread (restart thread/105) died unexpectedly due to an uncaught exception, this may leave your Jenkins in a bad way and is usually indicative of a bug in the code.
java.lang.RuntimeException: Unexpected issues encountered during cleanUp: null
at jenkins.model.Jenkins.cleanUp(Jenkins.java:2906)
at hudson.lifecycle.UnixLifecycle.restart(UnixLifecycle.java:70)
at jenkins.model.Jenkins$26.run(Jenkins.java:3808)
Caused by: java.lang.UnsupportedOperationException
at java.util.concurrent.CopyOnWriteArrayList$COWIterator.remove(CopyOnWriteArrayList.java:1176)
at hudson.util.PluginServletFilter.cleanUp(PluginServletFilter.java:162)
at jenkins.model.Jenkins._cleanUpPluginServletFilters(Jenkins.java:3238)
at jenkins.model.Jenkins.cleanUp(Jenkins.java:2891)
... 2 more
Mar 28, 2016 9:15:48 AM org.eclipse.jetty.util.log.JavaUtilLog warn
WARNING: Committed before 404 null
