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Bug
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Resolution: Unresolved
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Critical
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None
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Windows Server 2013
Jenkins 1.609.1 LTS
Build Blocker Plugin 1.6
Sometimes the build blocker plugin fails with a null pointer exception. Jobs are queued first, then vanish from the queue without being built.
Jenkins log:
java.lang.NullPointerException at hudson.plugins.buildblocker.BlockingJobsMonitor.getBlockingJob(BlockingJobsMonitor.java:85) at hudson.plugins.buildblocker.BuildBlockerQueueTaskDispatcher.canRun(BuildBlockerQueueTaskDispatcher.java:80) at hudson.model.Queue.isBuildBlocked(Queue.java:1110) at hudson.model.Queue.maintain(Queue.java:1320) at hudson.model.Queue$MaintainTask.doRun(Queue.java:2450) at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:51) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source) at java.util.concurrent.FutureTask.runAndReset(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)