Bump kotlin to 1.5.30, coroutines to 1.5.1, dokka to 1.5.0

[famod]

Fixes the two Gradle tests on Java 17 EA (#18372 (comment)).

I bumped the other two for general alignment. I ran dokka-maven-plugin via -Ddokka and it LGTM.

PS: Both kapt and dokka (would) still need add-opens. Only that NoSuchMethodError should be gone now: https://youtrack.jetbrains.com/issue/KT-47583

[evanchooly]

I wonder if .30 will fix all our Java 16+ issues with needing all the flags to open up modules. I'm on PTO until tomorrow but can take a look thursday.

[famod]

I wonder if .30 will fix all our Java 16+ issues with needing all the flags to open up modules.

No, that's what I tried to say with:

PS: Both kapt and dokka (would) still need add-opens.

though I haven't checked whether fewer flags are needed. It still needs at least "java.util".

This doesn't look so great either: https://youtrack.jetbrains.com/issue/KT-45545#focus=Comments-27-5141183.0-0

[MartinX3]

Can this be backported to 2.2 or is it easy to migrate to 2.3 (and does it come soon)?

[famod]

@MartinX3
The release plan is here: https://github.com/quarkusio/quarkus/wiki/Release-Planning#23
And the known migration tasks at this point are here: https://github.com/quarkusio/quarkus/wiki/Migration-Guide-2.3

I might find some time to check whether this would backport cleanly, but I cannot promise anyting.

[famod]

@MartinX3 I created #20260 to backport the latest kotlin versions. If it gets merged it will end up in the next 2.2.x.

[famod]

@MartinX3 I have been told that the next 2.2.x will take a while, so you might be better off updating to 2.3 when it's out.

[MartinX3]

@famod Oh
Thank you for the information, luckily until now every quarkus migration to a newer version was quite easy :)