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

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via spark-issues by Apache Spark (JIRA), 1 year ago
java.lang.NullPointerException:
at org.apache.spark.network.server.TransportRequestHandler.(TransportRequestHandler.java:77)
at org.apache.spark.network.TransportContext.createChannelHandler(TransportContext.java:159)
at org.apache.spark.network.TransportContext.initializePipeline(TransportContext.java:135)
at org.apache.spark.network.server.TransportServer$1.initChannel(TransportServer.java:123)

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