Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

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)	at org.apache.spark.network.server.TransportServer$1.initChannel(TransportServer.java:116)	at io.netty.channel.ChannelInitializer.channelRegistered(ChannelInitializer.java:69)