2021-04-13 19:45:20.623+0000 [id=387080]        WARNING c.t.j.p.m.QuietPeriodCalculator#calculate: Error calculating quiet time for index 1 and quietPeriodGroovy []: null; returning 0
java.lang.NullPointerException
        at com.tikal.jenkins.plugins.multijob.QuietPeriodCalculator.calculateOrThrow(QuietPeriodCalculator.java:52)
        at com.tikal.jenkins.plugins.multijob.QuietPeriodCalculator.calculate(QuietPeriodCalculator.java:34)
        at com.tikal.jenkins.plugins.multijob.SubTask.generateFuture(SubTask.java:74)
        at com.tikal.jenkins.plugins.multijob.MultiJobBuilder$SubJobWorker.call(MultiJobBuilder.java:515)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)