Details
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Type:
Bug
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Status: Resolved (View Workflow)
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Priority:
Major
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Resolution: Fixed
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Component/s: ivytrigger-plugin, ivyttrigger, xtrigger-plugin
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Labels:
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Environment:Jenkins 1.526
ivyTrigger 0.30
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Similar Issues:
Description
Using Jenkins 1.526 and ivyTrigger 0.30 polling always fails.
Checking the logs I see nothing.
Interestingly when enabling debug on the ivyTrigger for that job and disabling it afterwards (while allowing the job to build in-between) seems to solve the issue only on that particular job. When Jenkins is restarted the problem is back.
Exact output:
[IvyTrigger] - Poll with an Ivy script
Polling started on Sep 3, 2013 6:33:48 PM
Polling for the job XXXXXXXX
Looking nodes where the poll can be run.
Looking for the last built on node.
Polling on master.
[ERROR] - Polling error...
Attachments
Activity
Looking at the xtrigger-lib source code I see a commit highly relevant to the error I report so I assume this has been attempted to be fixed already even though I did not find any issues related.
https://github.com/jenkinsci/xtrigger-lib/commit/f8987aa737d76107d257bc74e2ffd26456359276
Alex Ouzounis
added a comment - Looking at the xtrigger-lib source code I see a commit highly relevant to the error I report so I assume this has been attempted to be fixed already even though I did not find any issues related.
https://github.com/jenkinsci/xtrigger-lib/commit/f8987aa737d76107d257bc74e2ffd26456359276
after uninstalling and installing the plugin again I now get:
java.lang.NullPointerException
at org.jenkinsci.lib.xtrigger.AbstractTriggerByFullContext.checkIfModified(AbstractTriggerByFullContext.java:55)
at org.jenkinsci.lib.xtrigger.AbstractTrigger$Runner.run(AbstractTrigger.java:199)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
notice that the line number in org.jenkinsci.lib.xtrigger.AbstractTriggerByFullContext.checkIfModified is now reflecting the correct line in the latest xtrigger-lib ...
Any feedback would be welcome.
Alex Ouzounis
added a comment - after uninstalling and installing the plugin again I now get:
java.lang.NullPointerException
at org.jenkinsci.lib.xtrigger.AbstractTriggerByFullContext.checkIfModified(AbstractTriggerByFullContext.java:55)
at org.jenkinsci.lib.xtrigger.AbstractTrigger$Runner.run(AbstractTrigger.java:199)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
notice that the line number in org.jenkinsci.lib.xtrigger.AbstractTriggerByFullContext.checkIfModified is now reflecting the correct line in the latest xtrigger-lib ...
Any feedback would be welcome. I had this also. I think it was from configuration data from the jenkins project not having been updated to a newer version of IvyTrigger. When I re-saved the IvyTrigger configuration from my affected projects this problem disappeared.
Alex Hutton
added a comment - I had this also. I think it was from configuration data from the jenkins project not having been updated to a newer version of IvyTrigger. When I re-saved the IvyTrigger configuration from my affected projects this problem disappeared. Indeed. The problem is that as soon as you restart the Jenkins server it comes back again - so restarts happen only when really necessary.
Tried to update to latest jenkins but got hit by another issue https://issues.jenkins-ci.org/browse/JENKINS-19796 so I had to go back to Jenkins 1.526
Alex Ouzounis
added a comment - - edited Indeed. The problem is that as soon as you restart the Jenkins server it comes back again - so restarts happen only when really necessary.
Tried to update to latest jenkins but got hit by another issue https://issues.jenkins-ci.org/browse/JENKINS-19796 so I had to go back to Jenkins 1.526 I just tried to restart Jenkins and I see, as you say, the problems returns.
Alex Hutton
added a comment - I just tried to restart Jenkins and I see, as you say, the problems returns. The problem seems to be that on De-serialization, the transient variable lock get its Default value ie null.
created pull request: https://github.com/jenkinsci/xtrigger-lib/pull/2 for a possible fix.
Any feedback would be welcome.
Alex Ouzounis
added a comment - - edited The problem seems to be that on De-serialization, the transient variable lock get its Default value ie null.
created pull request: https://github.com/jenkinsci/xtrigger-lib/pull/2 for a possible fix.
Any feedback would be welcome. 
Checking /var/logs/jenkins/jenkins.log I see hundreds possibly thousands (we have many jobs that depend on the ivytrigger) of the following:
java.lang.NullPointerException
at org.jenkinsci.lib.xtrigger.AbstractTriggerByFullContext.checkIfModified(AbstractTriggerByFullContext.java:53)
at org.jenkinsci.lib.xtrigger.AbstractTrigger$Runner.run(AbstractTrigger.java:199)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)