using DefaultScalaModule

[Debasish Ghosh]

Hello -

Flink 1.11 uses a shaded version of Jackson for serialization, which does not support jackson-module-scala. I need to register DefaultScalaModule for some Scala object serialization through Jackson. But when I do a mapper.registerModule(DefaultScalaModule), I get the following compilation error ..

type mismatch;
found   : com.fasterxml.jackson.module.scala.DefaultScalaModule.type
required: org.apache.flink.kubernetes.shaded.com.fasterxml.jackson.databind.Module

Any way how I can fix this ?

regards.

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[Arvid Heise-3]

Hi Debasish,

The idea of shading is actually to hide the dependencies of Flink from the user, such that he can use his own dependencies with appropriate versions.

That means, you add jackson with jackson-module-scala into your application jar without worrying about Flink's jackson at all (just treat it as an implementation detail).

On Tue, Dec 22, 2020 at 12:53 PM Debasish Ghosh <[hidden email]> wrote:

Hello -

Flink 1.11 uses a shaded version of Jackson for serialization, which does not support jackson-module-scala. I need to register DefaultScalaModule for some Scala object serialization through Jackson. But when I do a mapper.registerModule(DefaultScalaModule), I get the following compilation error ..

type mismatch;
found   : com.fasterxml.jackson.module.scala.DefaultScalaModule.type
required: org.apache.flink.kubernetes.shaded.com.fasterxml.jackson.databind.Module

Any way how I can fix this ?

regards.

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Debasish Ghosh
http://manning.com/ghosh2

http://manning.com/ghosh

Twttr: @debasishg
Blog: http://debasishg.blogspot.com
Code: http://github.com/debasishg

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