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Posted to issues@nifi.apache.org by "Pierre Villard (JIRA)" <ji...@apache.org> on 2017/09/01 12:13:02 UTC
[jira] [Commented] (NIFI-4340) RecordPathResult may throw NPE
[ https://issues.apache.org/jira/browse/NIFI-4340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16150419#comment-16150419 ]
Pierre Villard commented on NIFI-4340:
--------------------------------------
I had a closer a look on this one and I believe I found the root cause . It seems this error happens when you have:
{noformat}
"myArray": [ null ]
{noformat}
If you have
{noformat}
"myArray": null
{noformat}
or
{noformat}
"myArray": [ ]
{noformat}
it is correctly processed.
The logic seems to be located in {{WildcardIndexPath}}.
> RecordPathResult may throw NPE
> ------------------------------
>
> Key: NIFI-4340
> URL: https://issues.apache.org/jira/browse/NIFI-4340
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.3.0
> Reporter: Pierre Villard
> Assignee: Mark Payne
>
> When using UpdateRecord and indicating a path existing in the schema but pointing to a null field, it'll throw a NullPointerException.
> Basically, NPE is thrown at:
> {noformat}
> result.getSelectedFields().forEach(...)
> {noformat}
> or
> {noformat}
> recordPath.evaluate(record).getSelectedFields().iterator().hasNext()
> {noformat}
> Stack trace:
> {noformat}
> 2017-08-31 18:21:24,202 ERROR [Timer-Driven Process Thread-5] o.a.n.processors.standard.UpdateRecord UpdateRecord[id=39158233-015e-1000-c81d-5cbd8f5cddf1] Failed to process StandardFlowFileRecord[uuid=f1807e4b-3374-4d9d-bfcf-b44ef7b6910b,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1504194471839-1, container=default, section=1], offset=63430, length=5291],offset=0,name=340191697112484,size=5291]: java.lang.NullPointerException
> java.lang.NullPointerException: null
> at org.apache.nifi.record.path.paths.ChildFieldPath.getChild(ChildFieldPath.java:50)
> at org.apache.nifi.record.path.paths.ChildFieldPath.lambda$evaluate$0(ChildFieldPath.java:67)
> at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
> at java.util.stream.IntPipeline$4$1.accept(IntPipeline.java:250)
> at java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:110)
> at java.util.Spliterator$OfInt.forEachRemaining(Spliterator.java:693)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
> at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
> at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270)
> at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
> at java.util.stream.IntPipeline$4$1.accept(IntPipeline.java:250)
> at java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:110)
> at java.util.Spliterator$OfInt.forEachRemaining(Spliterator.java:693)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
> at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
> at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270)
> at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
> at java.util.stream.IntPipeline$4$1.accept(IntPipeline.java:250)
> at java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:110)
> at java.util.Spliterator$OfInt.forEachRemaining(Spliterator.java:693)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
> at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
> at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270)
> at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
> at java.util.stream.IntPipeline$4$1.accept(IntPipeline.java:250)
> at java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:110)
> at java.util.Spliterator$OfInt.forEachRemaining(Spliterator.java:693)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
> at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
> at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270)
> at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:419)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
> at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
> at org.apache.nifi.processors.standard.UpdateRecord.process(UpdateRecord.java:168)
> at org.apache.nifi.processors.standard.AbstractRecordProcessor$1.process(AbstractRecordProcessor.java:129)
> at org.apache.nifi.controller.repository.StandardProcessSession.write(StandardProcessSession.java:2785)
> at org.apache.nifi.processors.standard.AbstractRecordProcessor.onTrigger(AbstractRecordProcessor.java:118)
> at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
> at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1120)
> at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:147)
> at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
> at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:132)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
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