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 zeppelin-users by Kevin Kim (Sangwoo), 1 year ago
java.lang.AssertionError: assertion failed: null at scala.Predef$.assert(Predef.scala:179) at org.apache.spark.repl.SparkIMain.initializeSynchronous(SparkIMain.scala:203) at com.nflabs.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:269) at com.nflabs.zeppelin.interpreter.ClassloaderInterpreter.open(ClassloaderInterpreter.java:83) at com.nflabs.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:52) at com.nflabs.zeppelin.interpreter.LazyOpenInterpreter.bindValue(LazyOpenInterpreter.java:88) at com.nflabs.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:175) at com.nflabs.zeppelin.scheduler.Job.run(Job.java:147) at com.nflabs.zeppelin.scheduler.FIFOScheduler$1.run(FIFOScheduler.java:85) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)