[jira] [Created] (BEAM-14028) Java PreCommit flaky org.apache.beam.sdk.transforms/ParDoLifecycleTest#testTeardownCalledAfterExceptionInProcessElementStateful

["Luke Cwik (Jira)" <ji...@apache.org>]

Luke Cwik created BEAM-14028:
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             Summary: Java PreCommit flaky org.apache.beam.sdk.transforms/ParDoLifecycleTest#testTeardownCalledAfterExceptionInProcessElementStateful
                 Key: BEAM-14028
                 URL: https://issues.apache.org/jira/browse/BEAM-14028
             Project: Beam
          Issue Type: Bug
          Components: test-failures
            Reporter: Luke Cwik
            Assignee: Reuven Lax


It looks like the static callStatesMap is modified concurrently by multiple instances of the DoFn.

Causes failures like (https://ci-beam.apache.org/job/beam_PreCommit_Java_Commit/21291/testReport/junit/org.apache.beam.sdk.transforms/ParDoLifecycleTest/testTeardownCalledAfterExceptionInProcessElementStateful/):
{noformat}
java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1469)
	at java.util.HashMap$ValueIterator.next(HashMap.java:1498)
	at java.util.AbstractCollection.toString(AbstractCollection.java:461)
	at java.lang.String.valueOf(String.java:2994)
	at java.lang.StringBuilder.append(StringBuilder.java:131)
	at org.apache.beam.sdk.transforms.ParDoLifecycleTest$ExceptionThrowingFn.validate(ParDoLifecycleTest.java:392)
	at org.apache.beam.sdk.transforms.ParDoLifecycleTest$ExceptionThrowingFn.access$300(ParDoLifecycleTest.java:356)
	at org.apache.beam.sdk.transforms.ParDoLifecycleTest.testTeardownCalledAfterExceptionInProcessElementStateful(ParDoLifecycleTest.java:269)
{noformat}




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