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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3701) Cant call execute after first execution
Date Wed, 27 Apr 2016 08:25:12 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15259766#comment-15259766
] 

ASF GitHub Bot commented on FLINK-3701:
---------------------------------------

Github user mxm commented on the pull request:

    https://github.com/apache/flink/pull/1913#issuecomment-215009127
  
    The build passed on my branch but Apache's Travis seems to take forever: https://travis-ci.org/mxm/flink/builds/125852101
    
    I've rebased to the master and merged the commits. 
    
    CC @tillrohrmann Do you think this is good to merge?


> Cant call execute after first execution
> ---------------------------------------
>
>                 Key: FLINK-3701
>                 URL: https://issues.apache.org/jira/browse/FLINK-3701
>             Project: Flink
>          Issue Type: Bug
>          Components: Scala Shell
>    Affects Versions: 1.1.0
>            Reporter: Nikolaas Steenbergen
>            Assignee: Maximilian Michels
>             Fix For: 1.1.0
>
>
> in the scala shell, local mode, version 1.0 this works:
> {code}
> Scala-Flink> var b = env.fromElements("a","b")
> Scala-Flink> b.print
> Scala-Flink> var c = env.fromElements("c","d")
> Scala-Flink> c.print
> {code}
> in the current master (after c.print) this leads to :
> {code}
> java.lang.NullPointerException
> 	at org.apache.flink.api.java.ExecutionEnvironment.createProgramPlan(ExecutionEnvironment.java:1031)
> 	at org.apache.flink.api.java.ExecutionEnvironment.createProgramPlan(ExecutionEnvironment.java:961)
> 	at org.apache.flink.api.java.ScalaShellRemoteEnvironment.execute(ScalaShellRemoteEnvironment.java:70)
> 	at org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:855)
> 	at org.apache.flink.api.java.DataSet.collect(DataSet.java:410)
> 	at org.apache.flink.api.java.DataSet.print(DataSet.java:1605)
> 	at org.apache.flink.api.scala.DataSet.print(DataSet.scala:1615)
> 	at .<init>(<console>:56)
> 	at .<clinit>(<console>)
> 	at .<init>(<console>:7)
> 	at .<clinit>(<console>)
> 	at $print(<console>)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:497)
> 	at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:734)
> 	at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:983)
> 	at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:573)
> 	at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:604)
> 	at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:568)
> 	at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:760)
> 	at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:805)
> 	at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:717)
> 	at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:581)
> 	at scala.tools.nsc.interpreter.ILoop.innerLoop$1(ILoop.scala:588)
> 	at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:591)
> 	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:882)
> 	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:837)
> 	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:837)
> 	at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
> 	at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:837)
> 	at org.apache.flink.api.scala.FlinkShell$.startShell(FlinkShell.scala:199)
> 	at org.apache.flink.api.scala.FlinkShell$.main(FlinkShell.scala:127)
> 	at org.apache.flink.api.scala.FlinkShell.main(FlinkShell.scala)
> {code}



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