java.nio.BufferUnderflowException: This exception has no message.

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java.nio.BufferUnderflowException:
at java.nio.Buffer.nextGetIndex(Buffer.java:506)
at java.nio.HeapByteBuffer.getInt(HeapByteBuffer.java:361)
at ml.dmlc.xgboost4j.scala.rabit.util.RabitTrackerHelpers$ByteBufferHelpers.getString(RabitTrackerHelpers.scala:33)
at ml.dmlc.xgboost4j.scala.rabit.handler.RabitWorkerHandler.decodeCommand(RabitWorkerHandler.scala:102)
at ml.dmlc.xgboost4j.scala.rabit.handler.RabitWorkerHandler$$anonfun$3.applyOrElse(RabitWorkerHandler.scala:124)
at ml.dmlc.xgboost4j.scala.rabit.handler.RabitWorkerHandler$$anonfun$3.applyOrElse(RabitWorkerHandler.scala:119)
at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
at ml.dmlc.xgboost4j.scala.rabit.handler.RabitWorkerHandler.processEvent(RabitWorkerHandler.scala:39)
at akka.actor.FSM$class.akka$actor$FSM$$processMsg(FSM.scala:598)
at akka.actor.FSM$$anonfun$receive$1.applyOrElse(FSM.scala:592)
at ml.dmlc.xgboost4j.scala.rabit.handler.RabitWorkerHandler.aroundReceive(RabitWorkerHandler.scala:39)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
at akka.actor.ActorCell.invoke(ActorCell.scala:487)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
at akka.dispatch.Mailbox.run(Mailbox.scala:220)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

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