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Bug
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Resolution: Fixed
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Minor
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None
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Jenkins 2.346.2, gerrit-trigger 2.36.0, numerous others.
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Fixed in Gerrit Trigger Plugin 2.36.1
We get this error in the logs every 30 seconds (slightly edited for anonymity):
Jul 19 14:05:32 jenkins[5876]: 2022-07-19 12:05:32.057+0000 [id=182] INFO c.s.h.p.g.t.h.DynamicConfigurationCacheProxy#fetchThroughCache: Get dynamic projects directly for URL: http://builder/triggers/jobA/triggers.txt
Jul 19 14:05:32 jenkins[5876]: 2022-07-19 12:05:32.084+0000 [id=44] INFO c.s.h.p.g.t.h.DynamicConfigurationCacheProxy#fetchThroughCache: Get dynamic projects directly for URL: http://builder/triggers/jobB/triggers-build.txt
Jul 19 14:05:32 jenkins[5876]: 2022-07-19 12:05:32.094+0000 [id=40] SEVERE hudson.triggers.SafeTimerTask#run: Timer task GerritTriggerTimerTask{job='gerrit-report-barrier'} failed
Jul 19 14:05:32 jenkins[5876]: java.util.ConcurrentModificationException
Jul 19 14:05:32 jenkins[5876]: at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1511)
Jul 19 14:05:32 jenkins[5876]: at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1534)
Jul 19 14:05:32 jenkins[5876]: at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.DynamicConfigurationCacheProxy.fetchThroughCache(DynamicConfigurationCacheProxy.java:44)
Jul 19 14:05:32 jenkins[5876]: at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.GerritTrigger.updateTriggerConfigURL(GerritTrigger.java:1931)
Jul 19 14:05:32 jenkins[5876]: at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.GerritTriggerTimerTask.doRun(GerritTriggerTimerTask.java:63)
Jul 19 14:05:32 jenkins[5876]: at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:92)
Jul 19 14:05:32 jenkins[5876]: at jenkins.security.ImpersonatingScheduledExecutorService$1.run(ImpersonatingScheduledExecutorService.java:67)
Jul 19 14:05:32 jenkins[5876]: at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
Jul 19 14:05:32 jenkins[5876]: at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
Jul 19 14:05:32 jenkins[5876]: at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
Jul 19 14:05:32 jenkins[5876]: at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
Jul 19 14:05:32 jenkins[5876]: at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Jul 19 14:05:32 jenkins[5876]: at java.base/java.lang.Thread.run(Thread.java:829)
Jul 19 14:05:32 jenkins[5876]: 2022-07-19 12:05:32.094+0000 [id=42] INFO c.s.h.p.g.t.h.DynamicConfigurationCacheProxy#fetchThroughCache: Get dynamic projects directly for URL: http://builder/triggers/jobA/triggers-build.txt
We have a number of jobs using four different dynamic triggers. There are three different URLs mentioned here, but sometimes it's just one, and sometimes all four are loaded successfully.
Previously (older versions) we would see that the plug-in just stopped loading the triggers, but now we at least see these error messages. It looks like some threads could be stepping over each other?