Bug#894284: blocked by Kotlin

[Sven Grewe]

On Fri, 20 Mar 2020 17:59:09 +0100 Hans-Christoph Steiner <h...@eds.org> 
wrote:
>
> Once kotlin is in Debian, then we can use newer upstream versions, which
> support the latest JDK.
>
>
Kotlin version 1.3.31 seems to be in Unstable now.