[FLINK-3701] Cant call execute after first execution

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.1.0
• Component/s: Scala Shell
• Assignee: Maximilian Michels
• Reporter: Nikolaas Steenbergen
• Created: 05/Apr/16 11:55
• Updated: 14/May/16 13:27
• Resolved: 14/May/16 13:27

Description

in the scala shell, local mode, version 1.0 this works:

Scala-Flink> var b = env.fromElements("a","b")
Scala-Flink> b.print
Scala-Flink> var c = env.fromElements("c","d")
Scala-Flink> c.print

in the current master (after c.print) this leads to :

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)

Issue Links

• is duplicated by: FLINK-3865 ExecutionConfig NullPointerException with second execution
• is duplicated by: FLINK-3733 registeredTypesWithKryoSerializers is not assigned in ExecutionConfig#deserializeUserCode()
• is related to: FLINK-3633 Job submission silently fails when using user code types
• is required by: MAHOUT-1831 Integrate Flink Shell with Mahout for interactive Samsara
• links to: GitHub Pull Request #1913
• links to: GitHub Pull Request #1913
• links to: GitHub Pull Request #1913
• links to: GitHub Pull Request #1913