kotlinlang #eap

Kotlin 1.4-M3 is Out: Standard Library Changes Today we’re glad to present the last milestone preview of Kotlin 1.4 – 1.4-M3. In this post, we’ll guide you through the changes this preview brings to the Kotlin standard library. Other components are also getting updates in M3; we’ll cover them soon in another blog post with the release candidate version (1.4-RC), which will […] Slack Conversation

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Zac Sweers

07/08/2020, 5:10 AM

I’m trying 1.4-M3 and I think the

@Throws

change has basically broken it 😬

Zac Sweers

07/08/2020, 5:10 AM

filed this with details: https://youtrack.jetbrains.com/issue/KT-40091 Any class with

@Throws

or functions overriding throws-declaring java methods all fail to compile now with an internal compiler error

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Skolson5903

07/09/2020, 9:34 PM

This is the image I intended to include in the above message, sorry for the mistake...

PHondogo

07/10/2020, 8:24 PM

Also M3 regression: https://youtrack.jetbrains.com/issue/KT-40216

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ralf

07/12/2020, 12:07 AM

Add a sample to reproduce the issue. It seems like Kotlin compiler plugins compiled with Kotlin 1.3 aren’t forward compatible and can’t be used in projects using Kotlin 1.4 M3.

LeoColman

07/14/2020, 11:12 PM

The file is present in

x.klib

file, but I can't execute it in the node environment by itself, can I?

Zac Sweers

07/15/2020, 5:21 PM

is this a bug I should file or just some incompatible other kotlin plugin I need to hunt down?

Zac Sweers

07/16/2020, 2:13 AM

reading between the lines after digging into this https://kotlinlang.slack.com/archives/C0KLZSCHF/p1594865413111100?thread_ts=1594833566.109500&cid=C0KLZSCHF Is the new type inference system no longer planned to be enabled by default in 1.4? Between it requiring manual opt-in and new features being added that depend on it, it seems so. I haven’t been able to find any public comment about this though

Zac Sweers

07/16/2020, 2:32 AM

filed this for both of the above https://youtrack.jetbrains.com/issue/KT-40351

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ralf

07/16/2020, 5:44 PM

I tested the option for default methods in 1.4 and found an edge case. I filed https://youtrack.jetbrains.com/issue/KT-40393 https://blog.jetbrains.com/kotlin/2020/07/kotlin-1-4-m3-generating-default-methods-in-interfaces/

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Zac Sweers

07/21/2020, 5:18 AM

Could someone from JB look at this PR before 1.4 is released? https://github.com/JetBrains/kotlin/pull/3506 It’s a small change to fix an issue currently burning a lot of CI systems in larger projects, has been open for nearly a month though

Zac Sweers

07/21/2020, 5:20 AM

would be really disappointing if that missed the release due to review latency 😞 . The infra folks at twitter put in quite a bit of time to create a repro project to finally nail this down https://youtrack.jetbrains.com/issue/KT-34604

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Zac Sweers

07/21/2020, 9:09 PM

^^ closing the loop, turns out it’s already merged! 🎉

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alexcouch

07/26/2020, 9:40 AM

Are the oss-snapshot-local servers down or something? Cause gradle can't get the kotlin-compiler-embeddable:1.4-M3 because of some kind conflict with release handling policy?

alexcouch

07/26/2020, 9:40 AM

Copy code

Could not determine the dependencies of task ':compileKotlin'.
> Could not resolve all files for configuration ':kotlinCompilerClasspath'.
   > Could not resolve org.jetbrains.kotlin:kotlin-compiler-embeddable:1.4-M3.
     Required by:
         project :
      > Could not resolve org.jetbrains.kotlin:kotlin-compiler-embeddable:1.4-M3.
         > Could not get resource '<https://oss.jfrog.org/artifactory/oss-snapshot-local/org/jetbrains/kotlin/kotlin-compiler-embeddable/1.4-M3/kotlin-compiler-embeddable-1.4-M3.pom>'.
            > Could not HEAD '<https://oss.jfrog.org/artifactory/oss-snapshot-local/org/jetbrains/kotlin/kotlin-compiler-embeddable/1.4-M3/kotlin-compiler-embeddable-1.4-M3.pom>'. Received status code 409 from server:

alexcouch

07/26/2020, 9:40 AM

This is what I get

alexcouch

07/26/2020, 9:41 AM

And when I click the link to the resource I get this

Copy code

{
  "errors": [
    {
      "status": 409,
      "message": "The repository 'oss-snapshot-local' rejected the resolution of an artifact 'oss-snapshot-local:org/jetbrains/kotlin/kotlin-compiler-embeddable/1.4-M3/kotlin-compiler-embeddable-1.4-M3.pom' due to conflict in the snapshot release handling policy."
    }
  ]
}

alexcouch

07/26/2020, 9:42 AM

Here hold on lemme double check my gradle is setup correctly cause intellij generated for 1.4-M3 automatically for me

alexcouch

07/26/2020, 9:44 AM

Oh you know what I'm silly. The oss-snapshot-local maven url is for arrow-kt

alexcouch

07/26/2020, 9:45 AM

Yep. I have confirmed my gradle was not setup properly. I must have accidentally removed the original repositories block when I pasted in the repositories block provided by arrow's documentation. Solved.

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Liliia

07/27/2020, 2:11 PM

Kotlin 1.4.0-RC Released We’re almost there! We’re happy to unveil Kotlin 1.4.0-RC – the release candidate for the next major version of our programming language. Read on to learn about what has changed in Kotlin 1.4.0-RC, and make sure to try its new features before they are officially released with Kotlin 1.4.0. A special thanks to everyone who […] Thread in Slack Conversation

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