[ 
https://issues.apache.org/jira/browse/BEAM-3318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Thomas Groh updated BEAM-3318:
------------------------------
    Description: 
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/

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. :))


  was:
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/




> 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
>            Assignee: Thomas Groh
>
> Example: 
> https://builds.apache.org/job/beam_PreCommit_Java_MavenInstall/org.apache.beam$beam-examples-java/16088/testReport/junit/org.apache.beam.examples/WindowedWordCountIT/testWindowedWordCountInBatchDynamicSharding/
> 2017-12-07T20:12:36.484 [ERROR] 
> testWindowedWordCountInBatchDynamicSharding(org.apache.beam.examples.WindowedWordCountIT)
>   Time elapsed: 5.833 s  <<< ERROR!
> org.apache.beam.sdk.transforms.display.DisplayData$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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