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https://issues.apache.org/jira/browse/BEAM-3318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17145320#comment-17145320
]
Beam JIRA Bot commented on BEAM-3318:
-------------------------------------
This issue was marked "stale-P2" and has not received a public comment in 14
days. It is now automatically moved to P3. If you are still affected by it, you
can comment and move it back to P2.
> ConcurrentModificationException in populating Display Data
> ----------------------------------------------------------
>
> Key: BEAM-3318
> URL: https://issues.apache.org/jira/browse/BEAM-3318
> Project: Beam
> Issue Type: Bug
> Components: runner-direct, sdk-java-core
> Reporter: Thomas Groh
> Priority: P3
>
> Example:
> https://builds.apache.org/job/beam_PreCommit_Java_MavenInstall/org.apache.beam$beam-examples-java/16088/testReport/junit/org.apache.beam.examples/WindowedWordCountIT/testWindowedWordCountInBatchDynamicSharding/
> (Link is to a successful execution, but there is a stacktrace present within
> the build)
> 2017-12-07T20:12:36.484 [ERROR]
> testWindowedWordCountInBatchDynamicSharding(org.apache.beam.examples.WindowedWordCountIT)
> Time elapsed: 5.833 s <<< ERROR!
> org.apache.beam.sdk.transforms.display.DisplayData$InternalBuilder$PopulateDisplayDataException:
> Error while populating display data for component
> 'org.apache.beam.sdk.options.ProxyInvocationHandler$PipelineOptionsDisplayData':
> null
> at
> org.apache.beam.sdk.transforms.display.DisplayData$InternalBuilder.include(DisplayData.java:802)
> at
> org.apache.beam.sdk.transforms.display.DisplayData$InternalBuilder.delegate(DisplayData.java:768)
> at
> org.apache.beam.sdk.options.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:145)
> at com.sun.proxy.$Proxy30.populateDisplayData(Unknown Source)
> at
> org.apache.beam.sdk.transforms.display.DisplayData$InternalBuilder.include(DisplayData.java:794)
> at
> org.apache.beam.sdk.transforms.display.DisplayData$InternalBuilder.access$100(DisplayData.java:733)
> at
> org.apache.beam.sdk.transforms.display.DisplayData.from(DisplayData.java:81)
> at
> org.apache.beam.runners.direct.DisplayDataValidator.evaluateDisplayData(DisplayDataValidator.java:47)
> at
> org.apache.beam.runners.direct.DisplayDataValidator.validateOptions(DisplayDataValidator.java:39)
> at
> org.apache.beam.runners.direct.DirectRunner.run(DirectRunner.java:180)
> at org.apache.beam.runners.direct.DirectRunner.run(DirectRunner.java:63)
> at org.apache.beam.sdk.Pipeline.run(Pipeline.java:304)
> at org.apache.beam.sdk.Pipeline.run(Pipeline.java:290)
> at
> org.apache.beam.examples.WindowedWordCount.main(WindowedWordCount.java:214)
> at
> org.apache.beam.examples.WindowedWordCountIT.testWindowedWordCountPipeline(WindowedWordCountIT.java:187)
> at
> org.apache.beam.examples.WindowedWordCountIT.testWindowedWordCountInBatchDynamicSharding(WindowedWordCountIT.java:94)
> 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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at
> org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:393)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextNode(HashMap.java:1442)
> at java.util.HashMap$EntryIterator.next(HashMap.java:1476)
> at java.util.HashMap$EntryIterator.next(HashMap.java:1474)
> at
> org.apache.beam.sdk.options.ProxyInvocationHandler$PipelineOptionsDisplayData.populateDisplayData(ProxyInvocationHandler.java:301)
> at
> org.apache.beam.sdk.transforms.display.DisplayData$InternalBuilder.include(DisplayData.java:794)
> ... 35 more
> (as an aside, I hate everything about everything; Thanks for directing me to
> one of the successes, Jenkins. :))
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