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  1. ,

    Thrown to indicate that a specified field does not exist. make sure "strongClassCache" exists and is accessible (not private).

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via Google Groups by Unknown author, 1 year ago
java.lang.NoSuchFieldException: classServer	at java.lang.Class.getDeclaredField(Class.java:2070)	at org.apache.spark.repl.h2o.H2OIMain.stopClassServer(H2OIMain.scala:74)	at org.apache.spark.repl.h2o.H2OIMain.(H2OIMain.scala:41)	at org.apache.spark.repl.h2o.H2OIMain$.createInterpreter(H2OIMain.scala:180)	at org.apache.spark.repl.h2o.H2OInterpreter.createInterpreter(H2OInterpreter.scala:151)	at org.apache.spark.repl.h2o.H2OInterpreter.initializeInterpreter(H2OInterpreter.scala:105)	at org.apache.spark.repl.h2o.H2OInterpreter.(H2OInterpreter.scala:328)	at water.api.scalaInt.ScalaCodeHandler.createInterpreterInPool(ScalaCodeHandler.scala:100)	at water.api.scalaInt.ScalaCodeHandler$$anonfun$initializeInterpeterPool$1.apply(ScalaCodeHandler.scala:94)	at water.api.scalaInt.ScalaCodeHandler$$anonfun$initializeInterpeterPool$1.apply(ScalaCodeHandler.scala:93)	at scala.collection.immutable.Range.foreach(Range.scala:141)	at water.api.scalaInt.ScalaCodeHandler.initializeInterpeterPool(ScalaCodeHandler.scala:93)	at water.api.scalaInt.ScalaCodeHandler.(ScalaCodeHandler.scala:37)	at org.apache.spark.h2o.H2OContext$.registerScalaIntEndp(H2OContext.scala:830)	at org.apache.spark.h2o.H2OContext$.registerClientWebAPI(H2OContext.scala:750)	at org.apache.spark.h2o.H2OContext.start(H2OContext.scala:225)	at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.(:30)	at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.(:35)	at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.(:37)	at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.(:39)	at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC.(:41)	at $iwC$$iwC$$iwC$$iwC$$iwC.(:43)	at $iwC$$iwC$$iwC$$iwC.(:45)	at $iwC$$iwC$$iwC.(:47)	at $iwC$$iwC.(:49)	at $iwC.(:51)