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From "Aljoscha Krettek (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-12461) Flink 1.8 not working with Scala 2.12.8
Date Thu, 09 May 2019 11:51:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-12461?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aljoscha Krettek updated FLINK-12461:
-------------------------------------
    Summary: Flink 1.8 not working with Scala 2.12.8  (was: 1.8 not working with Scala 2.12.8)

> Flink 1.8 not working with Scala 2.12.8
> ---------------------------------------
>
>                 Key: FLINK-12461
>                 URL: https://issues.apache.org/jira/browse/FLINK-12461
>             Project: Flink
>          Issue Type: Bug
>    Affects Versions: 1.8.0
>            Reporter: Gaƫl Renoux
>            Priority: Major
>
> When using 1.8 with Scala 2.12.8 and trying to parse a scala.Map (not a java.util.Map),
I get a: java.lang.ClassNotFoundException: scala.math.Ordering$$anon$9
> To reproduce:
>  - start with the Scala Maven archetype (org.apache.flink:flink-quickstart-scala:1.8.0)
>  - in the POM, set the scala.version to 2.12.8 and the scala.binary.version to 2.12
>  - in StreamingJob, add: env.fromElements[Map[String, Int]]()
> It works with Scala 2.12.7 (well, without putting anything in the job, it fails with
"No operators defined in streaming topology", which is expected).
> I suspect this is linked to the binary incompatiblity of 2.12.8 with 2.12.7 (see the
release note of 2.12.8), so compiling Flink with 2.12.8 instead of 2.12.7 might be enough
(although it might stop working with 2.12.7?)



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