[TOREE-334] java.util.NoSuchElementException on empty magic

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.1.0
• Assignee: Unassigned
• Reporter: Maciej Bryński
• Created: 24/Aug/16 10:18
• Updated: 24/Aug/16 18:28
• Resolved: 24/Aug/16 18:27

Description

Empty magic kills kernel. Tested on master

%

gives

java.util.NoSuchElementException: None.get
        at scala.None$.get(Option.scala:347)
        at scala.None$.get(Option.scala:345)
        at org.apache.toree.kernel.protocol.v5.magic.MagicParser$$anonfun$parseOutInvalidMagics$2.apply(MagicParser.scala:93)
        at org.apache.toree.kernel.protocol.v5.magic.MagicParser$$anonfun$parseOutInvalidMagics$2.apply(MagicParser.scala:92)
        at scala.collection.immutable.List.map(List.scala:273)
        at org.apache.toree.kernel.protocol.v5.magic.MagicParser.parseOutInvalidMagics(MagicParser.scala:92)
        at org.apache.toree.kernel.protocol.v5.magic.MagicParser.parseLines(MagicParser.scala:153)
        at org.apache.toree.kernel.protocol.v5.magic.MagicParser.parse(MagicParser.scala:174)
        at org.apache.toree.kernel.protocol.v5.relay.ExecuteRequestRelay$$anonfun$receive$1.applyOrElse(ExecuteRequestRelay.scala:109)
        at akka.actor.Actor$class.aroundReceive(Actor.scala:484)
        at org.apache.toree.kernel.protocol.v5.relay.ExecuteRequestRelay.aroundReceive(ExecuteRequestRelay.scala:36)
        at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)
        at akka.actor.ActorCell.invoke(ActorCell.scala:495)
        at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
        at akka.dispatch.Mailbox.run(Mailbox.scala:224)
        at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
        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