:kotlin-intensifies-purple: Kotlin 2.1.20 is here!...

# announcements

[Alina Dolgikh [JB]]

K Kotlin 2.1.20 is here! K

This release brings powerful new features and improvements:

✨ K2 support for kapt and Lombok plugins
🔗 Common atomic types and improved UUIDs in stdlib
⏱️ Native time-tracking API
⚡ New inlining optimizations in Kotlin/Native
🛠️ Better debugging for Kotlin/Wasm
📜 A new DSL to replace Gradle’s Application plugin
📚 Big improvements to Kotlin documentation

Learn more: https://kotl.in/2-1-2

[dawidhyzy]

Is there a place where I see the progress of K2 IDE support?

[marcin.kozinski]

Weird, Slack unfurled the blog post, but I get a 404 if I click the link or the unfurl 🤔

[Frank Bouwens]

https://kotlinlang.org/docs/whatsnew2120.html

[Erik Dreyer]

Taking it for a spin. I have a project using Maven, but can’t seem to get the -Xcontext-parameters compiler arg to work. It works from the command line mvn compile, but not when building in IntelliJ. The error I get is that I must have context params enabled. Anyone else encounter and solve this?

[Dumitru Preguza]

Is there a guide how to add Kotlin last version to an existing Java project that has Lombok, so that everything compiles and runs as expected ?

We have:
Project with Java 17, maven, and Lombok

We want:
To add Kotlin, last version with K2

Test case: Run kotlin code that uses a Java POJO annotated with lombok @Builder / @Data etc
Result builder: Unresolved reference 'builder'.
Result use lombok setter: Cannot access 'field exportLabel: String!': it is private'.

[tapchicoma]

@Dumitru Preguza check this link

[Colton Idle]

Can anyone expand on "Kotlin Multiplatform: A new DSL to replace Gradle’s Application plugin in multiplatform projects." isaw more details here but i still dont really get it/mpotivation to move to it

https://kotlinlang.org/docs/whatsnew2120.html#kotlin-multiplatform-new-dsl-to-replace-gradle-s-application-plugin

[tapchicoma]

basically it is a replacement for Gradle application plugin which will not work with KMP in projects using Gradle 8.7+

[Dumitru Preguza]

@tapchicoma for now I get:
[ERROR] 'build.plugins.plugin[org.jetbrains.kotlin:kotlin-maven-plugin].dependencies.dependency.scope' for org.projectlombok:lombok:jar must be one of [compile, runtime, system] but is 'provided'

I'm checking what I have done wrong

[Dumitru Preguza]

In the pom from this repo: https://github.com/kotlin-hands-on/kotlin-lombok-examples/blob/master/kotlin_lombok_maven/nokapt/pom.xml
Only the 'kotlin-maven-lombok' is listed as plugin dependency, without org.projectlombok:lombok itself.
Probably the documentation on the website should be updated, either by removing the lombok dependency from plugin declaration, or by changing it's scope to an existing one (compile, runtime, system) because 'provided' is not an acceptable scope for a Maven plugin dependency.
It's a major issue for new comers, they will copy paste from official website this config and then think something like 'Oh It doesn't work, I don't want kotlin in my existing java project', however the issue is trivial.

[Dumitru Preguza]

I would like to report another issue with kotlin lombok plugin

if I have defaultPrivate config in my lombok.config file:

lombok.fieldDefaults.defaultPrivate = false

then I get in kotlin this error when trying to get/set a field from a Java Dto annotated with @Getter and @Setter at class level:
Exception in thread "main" java.lang.IllegalAccessError: class MainKt tried to access private field MyDto.myField (MainKt and DnsMessage are in unnamed module of loader 'app')

I think it has something to do with the compiler, lombok will put private instead of default modifier

[tapchicoma]

it would be nice if you could create a Kotlin issue for this: https://kotl.in/issue