Kills long running SCM polling threads in Jenkins

kill-scm-threads.groovy

Jenkins.instance.getTrigger("SCMTrigger").getRunners().each()
{
  item ->
    long millis = Calendar.instance.time.time - item.getStartTime()

    if(millis > (1000 * 60 * 60)) // 1000 millis in a second * 60 seconds in a minute * 3 minutes
    {
      Thread.getAllStackTraces().keySet().each()
      { 
        tItem ->
          if (tItem.getName().contains("SCM polling") && tItem.getName().contains(item.getTarget().name))
          { 
              println(item.getTarget().name)
              println(item.getDuration())
              println(item.getStartTime())

              println "Interrupting thread " + tItem.getName(); 
              tItem.interrupt()
          }
       }
    }
}