Unable to use ktlint 0.38.0-alpha01 (Kotlin 1.4 compatibility)

[ephemient]

buildscript {
    configurations.classpath.resolutionStrategy.dependencySubstitution.all {
        val requested = requested as? ModuleComponentSelector ?: return@all
        if (requested.group == "com.pinterest.ktlint") {
            useTarget("${requested.moduleIdentifier}:0.38.0-alpha01", "Kotlin 1.4 compatibility")
        }
    }
}

$ ./gradlew lintKotlin
Execution failed for task ':lintKotlin'.
> There was a failure while executing work items
   > A failure occurred while executing org.jmailen.gradle.kotlinter.tasks.lint.LintWorkerRunnable
      > kotlin.jvm.internal.FunctionReferenceImpl.<init>(ILjava/lang/Object;Ljava/lang/Class;Ljava/lang/String;Ljava/lang/String;I)V

Kotlinter itself has compatibility problems with Kotlin 1.4?

[jeremymailen]

Probably another manifestation of this: pinterest/ktlint#830 (comment)
I'm watching the threads, but haven't worked through the upgrade yet. It may be that there are still some incompatibilities in alpha01.

[ephemient]

Experimenting with some workarounds, I think this might actually require #58. We're trying to use Kotlin 1.4 compiled classes, but because it's mixed with Gradle classpath containing Kotlin 1.3 stdlib, we end up with incompatibilities.

[jeremymailen]

Yeah, I tried the upgrade this evening and the issue is that if you are using the Gradle Kotlin DSL, that implementation is still pinned to kotlin 1.3 and causes a clash with this plugin would need 1.4.

I guess the options are to wait for a version of gradle which upgrades to kotlin 1.4 or implement isolation of kotlinter's classloader.

[jeremymailen]

See discussion here: #144 (comment)

[henrik242]

0.38 is released: pinterest/ktlint#846

[jeremymailen]

3.0.0 is now available with kotlin 1.4.0 support.

[ssp]

Thanks for the update @jeremymailen !