Update Kotlin to version 2.1.10

[andreas-eberle]

Update Kotlin to version 2.1.0, Kotlinx Serialization to 1.8.0 and Kotlin Coroutines to 1.10.0

Since the Kotlin update was removed again from PR #45228, I'm opening this PR to add it separately. This is an updated version of the original PR #44809.

[github-actions]

🎊 PR Preview 83338cf has been successfully built and deployed to https://quarkus-pr-main-45470-preview.surge.sh/version/main/guides/

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[andreas-eberle]

I see the quickstarts compilation failed. I had a look at a problematic project and noticed that it has Kotlin version 1.7.20 set in its pom: https://github.com/quarkusio/quarkus-quickstarts/blob/main/hibernate-orm-panache-kotlin-quickstart/pom.xml

Why is there a specific version set? Should it use the version comping from the platform bom? Can I update that quickstart to use Kotlin 2.1?

[andreas-eberle]

There is also a failure in the Gradle tests. I'm not sure if I understand this test correctly, but it looks like it might use old Quarkus libraries compiled without the changes in this PR. Is this possible? Or am I misunderstanding this?

The shows:

2025-01-10T13:07:05.9811852Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/2.1.0/dc3753b59b67d79b7d2f546d51e22a0ec1f082d8/kotlin-reflect-2.1.0.jar!/META-INF/descriptors.jvm.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9813996Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/2.1.0/dc3753b59b67d79b7d2f546d51e22a0ec1f082d8/kotlin-reflect-2.1.0.jar!/META-INF/descriptors.runtime.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9815954Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/2.1.0/dc3753b59b67d79b7d2f546d51e22a0ec1f082d8/kotlin-reflect-2.1.0.jar!/META-INF/deserialization.common.jvm.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9817916Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/2.1.0/dc3753b59b67d79b7d2f546d51e22a0ec1f082d8/kotlin-reflect-2.1.0.jar!/META-INF/deserialization.common.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9820265Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/2.1.0/dc3753b59b67d79b7d2f546d51e22a0ec1f082d8/kotlin-reflect-2.1.0.jar!/META-INF/deserialization.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9822371Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/2.1.0/dc3753b59b67d79b7d2f546d51e22a0ec1f082d8/kotlin-reflect-2.1.0.jar!/META-INF/kotlin-reflection.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9824426Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/2.1.0/dc3753b59b67d79b7d2f546d51e22a0ec1f082d8/kotlin-reflect-2.1.0.jar!/META-INF/metadata.jvm.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9826350Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/2.1.0/85f8b81009cda5890e54ba67d64b5e599c645020/kotlin-stdlib-2.1.0.jar!/META-INF/kotlin-stdlib-jdk7.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9828354Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/2.1.0/85f8b81009cda5890e54ba67d64b5e599c645020/kotlin-stdlib-2.1.0.jar!/META-INF/kotlin-stdlib-jdk8.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9830202Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/2.1.0/85f8b81009cda5890e54ba67d64b5e599c645020/kotlin-stdlib-2.1.0.jar!/META-INF/kotlin-stdlib.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9832342Z e: file:///home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlinx/kotlinx-coroutines-core-jvm/1.10.0/37966d769934a42566dec1ca2e1da6e5565c4e06/kotlinx-coroutines-core-jvm-1.10.0.jar!/META-INF/kotlinx-coroutines-core.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9834437Z e: file:///home/runner/.m2/repository/io/quarkus/quarkus-rest-kotlin/999-SNAPSHOT/quarkus-rest-kotlin-999-SNAPSHOT.jar!/META-INF/quarkus-rest-kotlin.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9836159Z e: file:///home/runner/.m2/repository/io/quarkus/quarkus-vertx-kotlin/999-SNAPSHOT/quarkus-vertx-kotlin-999-SNAPSHOT.jar!/META-INF/quarkus-vertx-kotlin.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.9.0.
2025-01-10T13:07:05.9836177Z 

[gsmet]

Which specific Gradle test is failing?

[andreas-eberle]

It's ConditionalDependenciesKotlinTest

[gsmet]

You lost some of the additional changes I made in the operation. I added a commit restoring them.

[gsmet]

That being said, I'm unsure how it will fly with Gradle as I ended up having issues with Gradle compatibility itself.

[andreas-eberle]

I've created quarkusio/quarkus-quickstarts#1489 to update the Quickstart to fix that build error. Unfortunately, I don't understand the other compilation errors. Are they just flaky tests or is there something I need to fix? I'm a bit confused...

[gsmet]

Yeah so the remaining error is the one for which I was thinking we would need a Gradle upgrade to be compatible but I'm not entirely sure:

java.lang.NoSuchMethodError: 'org.gradle.internal.buildoption.BuildOption$Value org.gradle.api.internal.StartParameterInternal.getIsolatedProjects()'	
	at org.jetbrains.kotlin.gradle.plugin.internal.ProjectIsolationStartParameterAccessorG76$isProjectIsolationEnabled$2.invoke(ProjectIsolationStartParameterAccessorG76.kt:16)	
	at org.jetbrains.kotlin.gradle.plugin.internal.ProjectIsolationStartParameterAccessorG76$isProjectIsolationEnabled$2.invoke(ProjectIsolationStartParameterAccessorG76.kt:15)	
	at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)	
	at org.jetbrains.kotlin.gradle.plugin.internal.ProjectIsolationStartParameterAccessorG76.isProjectIsolationEnabled(ProjectIsolationStartParameterAccessorG76.kt:15)	
	at org.jetbrains.kotlin.gradle.plugin.internal.ProjectIsolationStartParameterAccessorKt.isProjectIsolationEnabled(ProjectIsolationStartParameterAccessor.kt:45)	
	at org.jetbrains.kotlin.gradle.plugin.statistics.BuildFusService$Companion.registerIfAbsentImpl(BuildFusService.kt:94)	
	at org.jetbrains.kotlin.gradle.plugin.statistics.BuildFusService$Companion.registerIfAbsent(BuildFusService.kt:80)	
	at org.jetbrains.kotlin.gradle.plugin.DefaultKotlinBasePlugin.apply(KotlinPluginWrapper.kt:75)	
	at org.jetbrains.kotlin.gradle.plugin.KotlinBasePluginWrapper.apply(KotlinPluginWrapper.kt:197)	
	at org.jetbrains.kotlin.gradle.plugin.KotlinMultiplatformPluginWrapper.apply(PluginWrappers.kt:74)	
	at org.jetbrains.kotlin.gradle.plugin.KotlinMultiplatformPluginWrapper.apply(PluginWrappers.kt:68)	
	at org.gradle.api.internal.plugins.ImperativeOnlyPluginTarget.applyImperative(ImperativeOnlyPluginTarget.java:54)

I think you will need to have a look at what this method is and why it can't find it.

[andreas-eberle]

This might be caused by https://youtrack.jetbrains.com/issue/KTIJ-31860/Sync-failure-when-using-Kotlin-2.1.20-dev-1129

[andreas-eberle]

@gsmet : How did you find this exception? I tried to look in the raw logs of the failed builds, but couldn't find it.

[gsmet]

There is a link to a Gradle build scan. I just searched for the module name and loaded the build scan.

[andreas-eberle]

So from what I found, it seems Gradle moved/renamed a class (remvoing BuildOption in favour of Option), which the kotlin-gradle plugin depends on. In https://youtrack.jetbrains.com/issue/KTIJ-31860/Sync-failure-when-using-Kotlin-2.1.20-dev-1129 it was suggested to manually set the Gradle Plugin Variant to gradle85. I tried to acomplish this by setting it in the Quarkus Gradle Plugin Code but couldn't get it to work.

To reproduce this issue, the simplest way is to switch into the directory devtools/gradle in the Quarkus main project and then run ./gradlew :gradle-application-plugin:test --tests "io.quarkus.gradle.QuarkusPluginTest.shouldNotFailOnProjectDependenciesWithoutMain"

Maybe a gradle expert has an idea?

[gsmet]

I think we will just have to wait for a new version of Gradle compatible with Kotlin 2.1.0.

[gastaldi]

Probably related to gradle/gradle#31549

[gsmet]

@andreas-eberle maybe this is the missing piece: #45899

[andreas-eberle]

thanks! I will have a look.

[andreas-eberle]

I have quickly updated the dependencies but couldn't test it locally yet. Maybe on Thursday I can check it locally.

[mschorsch]

Any news?

[gsmet]

My understanding is that we need a Gradle version compatible with Kotlin 2.1.10 and we're not there yet but I would be happy to get corrected.

[mschorsch]

My understanding is that we need a Gradle version compatible with Kotlin 2.1.10 and we're not there yet but I would be happy to get corrected.

Thanks @gsmet .This would mean that a downgrade of the Gradle version should solve the problem.

BTW The upcoming Kotlin 2.1.20 has full featue support for Gradle 8.11 (https://kotlinlang.org/docs/whatsnew-eap.html#gradle-support-for-version-8-11)

[gsmet]

I dunno. I'm not sure we actually understood the issue as they say it's compatible and we have a method not found exception (or something similar).

I don't have the cycles to get to the bottom of it tbh so if you want to experiment, feel free to do so.

[apatrida]

Is the kotlin maven plugin used here versioned by the BOM or a parent pom?

[andreas-eberle]

I realized that gradle does not support Kotlin 2.1 for it's plugins yet, but we can use it for the we build nonetheless. Therefore I reverted the Gradle Plugin Kotlin Version again to 2.0.21 and locally that fixed the build of the gradle plugin. I pushed the changes, to see if the rest works out. Locally I always run into some failing tests on my Windows machine and thus can never complete the full build.

[gsmet]

It’s nice if it fixed the build but what about the generated projects?

[andreas-eberle]

What do you mean? Can you elaborate?