[jira] [Commented] (FLINK-13586) Method ClosureCleaner.clean broke backward compatibility between 1.8.0 and 1.8.1

["Aljoscha Krettek (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-13586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16920700#comment-16920700 ] 

Aljoscha Krettek commented on FLINK-13586:
------------------------------------------

[~StephanEwen] I cut a PR for this, I think it implements your proposal.

> Method ClosureCleaner.clean broke backward compatibility between 1.8.0 and 1.8.1
> --------------------------------------------------------------------------------
>
>                 Key: FLINK-13586
>                 URL: https://issues.apache.org/jira/browse/FLINK-13586
>             Project: Flink
>          Issue Type: Bug
>          Components: API / DataStream
>    Affects Versions: 1.8.1, 1.9.0, 1.10.0
>            Reporter: Gaël Renoux
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.8.2
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Method clean in org.apache.flink.api.java.ClosureCleaner received a new parameter in Flink 1.8.1. This class is noted as internal, but is used in the Kafka connectors (in org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducerBase).
> The Kafka connectors library is not provided by the server, and must be set up as a dependency with compile scope (see https://ci.apache.org/projects/flink/flink-docs-stable/dev/connectors/kafka.html#usage, or the Maven project template). Any project using those connectors and built with 1.8.0 cannot be deployed on a 1.8.1 Flink server, because it would target the old method.
> => This methods needs a fallback with the original two arguments (setting a default value of RECURSIVE for the level argument).



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