Greg Hogan created FLINK-3865:
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Summary: ExecutionConfig NullPointerException with second execution
Key: FLINK-3865
URL: https://issues.apache.org/jira/browse/FLINK-3865
Project: Flink
Issue Type: Bug
Components: Core
Affects Versions: 1.1.0
Reporter: Greg Hogan
Priority: Blocker
Following {{NullPointerException}} from pr1956 rebased to master.
After the first execution (the program calls {{DataSet.count()}}) the call to
{{ExecutionConfig.serializeUserCode}} sets {{registeredKryoTypes}} and other
fields to null. During the second execution (creating the actual result) access
to this field throws a {{NullPointerException}}.
[~till.rohrmann] should {{serializeUserCode}} set the fields to a new
{{LinkedHashSet}} and leave {{globalJobParameters}} unchanged?
{code}
org.apache.flink.client.program.ProgramInvocationException: The main method
caused an error.
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:520)
at
org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:403)
at org.apache.flink.client.program.Client.runBlocking(Client.java:248)
at
org.apache.flink.client.CliFrontend.executeProgramBlocking(CliFrontend.java:860)
at org.apache.flink.client.CliFrontend.run(CliFrontend.java:327)
at
org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1187)
at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1238)
Caused by: java.lang.NullPointerException
at
org.apache.flink.api.common.ExecutionConfig.registerKryoType(ExecutionConfig.java:625)
at
org.apache.flink.api.java.typeutils.runtime.kryo.Serializers.recursivelyRegisterType(Serializers.java:96)
at
org.apache.flink.api.java.typeutils.runtime.kryo.Serializers.recursivelyRegisterType(Serializers.java:66)
at
org.apache.flink.api.java.ExecutionEnvironment$1.preVisit(ExecutionEnvironment.java:1053)
at
org.apache.flink.api.java.ExecutionEnvironment$1.preVisit(ExecutionEnvironment.java:1046)
at
org.apache.flink.api.common.operators.SingleInputOperator.accept(SingleInputOperator.java:198)
at
org.apache.flink.api.common.operators.SingleInputOperator.accept(SingleInputOperator.java:199)
at
org.apache.flink.api.common.operators.SingleInputOperator.accept(SingleInputOperator.java:199)
at
org.apache.flink.api.common.operators.SingleInputOperator.accept(SingleInputOperator.java:199)
at
org.apache.flink.api.common.operators.SingleInputOperator.accept(SingleInputOperator.java:199)
at
org.apache.flink.api.common.operators.SingleInputOperator.accept(SingleInputOperator.java:199)
at
org.apache.flink.api.common.operators.DualInputOperator.accept(DualInputOperator.java:281)
at
org.apache.flink.api.common.operators.GenericDataSinkBase.accept(GenericDataSinkBase.java:220)
at org.apache.flink.api.common.Plan.accept(Plan.java:333)
at
org.apache.flink.api.java.ExecutionEnvironment.createProgramPlan(ExecutionEnvironment.java:1046)
at
org.apache.flink.api.java.ExecutionEnvironment.createProgramPlan(ExecutionEnvironment.java:1004)
at
org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:58)
at
org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:898)
at
org.apache.flink.api.java.utils.DataSetUtils.checksumHashCode(DataSetUtils.java:350)
at org.apache.flink.graph.examples.HITS.main(HITS.java:114)
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:498)
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:505)
... 6 more
{code}
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