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https://issues.apache.org/jira/browse/FLINK-34988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17833095#comment-17833095
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Matthias Pohl commented on FLINK-34988:
---------------------------------------
It's most likely caused by FLINK-34548 based on the git history between the
most recent successful nightly run on master
[20240331.1|https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=58645&view=results]
(based on {{3841f062}}) and
[20240402.1|https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=58676&view=results]
(based on {{d271495c}}):
{code}
$ git log 3841f062..d271495c5be34f4e4a518207ca7716f4e8907e5f --oneline
d271495c5be [hotfix] Fix compile error in DataStreamV2SinkTransformation
28762497bdf [FLINK-34548][API] Supports sink-v2 Sink
056660e0b69 [FLINK-34548][API] Supports FLIP-27 Source
ceafa5a5705 [FLINK-34548][API] Implement datastream
4f71c5b4660 [FLINK-34548][API] Implement process function's underlying operators
e1147ca7e39 [FLINK-34548][API] Introduce ExecutionEnvironment
9fa74a8a706 [FLINK-34548][API] Introduce stream interface and move KeySelector
to flink-core-api
cedbcce6eff [FLINK-34548][API] Introduce variants of ProcessFunction
13cfaa76b5e [FLINK-34548][API] Introduce ProcessFunction and RuntimeContext
related interfaces
13790e03207 [FLINK-34548][API] Move Function interface to flink-core-api
59525e460af [FLINK-34548][API] Create flink-core-api module and let flink-core
depend on it
5b2e923be0a [FLINK-34548][API] Initialize the datastream v2 related modules
{code}
> Class loading issues in JDK17 and JDK21
> ---------------------------------------
>
> Key: FLINK-34988
> URL: https://issues.apache.org/jira/browse/FLINK-34988
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream
> Affects Versions: 1.20.0
> Reporter: Matthias Pohl
> Priority: Major
> Labels: test-stability
>
> * JDK 17 (core; NoClassDefFoundError caused by ExceptionInInitializeError):
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=58676&view=logs&j=675bf62c-8558-587e-2555-dcad13acefb5&t=5878eed3-cc1e-5b12-1ed0-9e7139ce0992&l=12942
> * JDK 17 (misc; ExceptionInInitializeError):
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=58676&view=logs&j=d871f0ce-7328-5d00-023b-e7391f5801c8&t=77cbea27-feb9-5cf5-53f7-3267f9f9c6b6&l=22548
> * JDK 21 (core; same as above):
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=58676&view=logs&j=d06b80b4-9e88-5d40-12a2-18072cf60528&t=609ecd5a-3f6e-5d0c-2239-2096b155a4d0&l=12963
> * JDK 21 (misc; same as above):
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=58676&view=logs&j=59a2b95a-736b-5c46-b3e0-cee6e587fd86&t=c301da75-e699-5c06-735f-778207c16f50&l=22506
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