java.lang.NullPointerException: This exception has no message.

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, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at org.apache.spark.streaming.DStreamGraph$$anonfun$getMaxInputStreamRememberDuration$2.apply(DStreamGraph.scala:172)
at scala.collection.TraversableOnce$$anonfun$maxBy$1.apply(TraversableOnce.scala:225)
at scala.collection.IndexedSeqOptimized$class.foldl(IndexedSeqOptimized.scala:51)
at scala.collection.IndexedSeqOptimized$class.reduceLeft(IndexedSeqOptimized.scala:68)
at scala.collection.mutable.ArrayBuffer.reduceLeft(ArrayBuffer.scala:47)
at scala.collection.TraversableOnce$class.maxBy(TraversableOnce.scala:225)
at org.apache.spark.streaming.DStreamGraph.getMaxInputStreamRememberDuration(DStreamGraph.scala:172)
at org.apache.spark.streaming.scheduler.JobGenerator.clearMetadata(JobGenerator.scala:267)
at org.apache.spark.streaming.scheduler.JobGenerator.org$apache$spark$streaming$scheduler$JobGenerator$$processEvent(JobGenerator.scala:178)
at org.apache.spark.streaming.scheduler.JobGenerator$$anon$1.onReceive(JobGenerator.scala:83)

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