Support Kotlin 2.1.0

[ZacSweers]

When testing dagger with K2 Kapt on Kotlin 2.1.0-Beta1, it fails with the below trace.

Repro

• Checkout Prep for Kotlin 2.1.0 slackhq/circuit#1677
• Set kapt.use.k2=true in gradle.properties
• ./gradlew :samples:star:kaptReleaseKotlinAndroid

Trace

Caused by: java.lang.IllegalStateException: Unable to read Kotlin metadata due to unsupported metadata version.	
	at dagger.internal.codegen.kotlin.KotlinMetadata.metadataOf(KotlinMetadata.java:180)	
	at dagger.internal.codegen.kotlin.KotlinMetadata.from(KotlinMetadata.java:157)	
	at dagger.internal.codegen.kotlin.KotlinMetadataFactory.create(KotlinMetadataFactory.java:55)	
	at dagger.internal.codegen.kotlin.KotlinMetadataUtil.getAllMethodNamesBySignature(KotlinMetadataUtil.java:89)	
	at dagger.internal.codegen.validation.ComponentValidator$ElementValidator.validateClassMethodName(ComponentValidator.java:256)	
	at dagger.internal.codegen.validation.ComponentValidator$ElementValidator.validateComponentMethods(ComponentValidator.java:247)	
	at dagger.internal.codegen.validation.ComponentValidator$ElementValidator.validateElement(ComponentValidator.java:176)	
	at dagger.internal.codegen.validation.ComponentValidator.validateUncached(ComponentValidator.java:136)	
	at dagger.internal.codegen.base.Util.reentrantComputeIfAbsent(Util.java:33)	
	at dagger.internal.codegen.validation.ComponentValidator.validate(ComponentValidator.java:132)	
	at dagger.internal.codegen.processingstep.ComponentProcessingStep.isComponentValid(ComponentProcessingStep.java:149)	
	at dagger.internal.codegen.processingstep.ComponentProcessingStep.processRootComponent(ComponentProcessingStep.java:98)	
	at dagger.internal.codegen.processingstep.ComponentProcessingStep.process(ComponentProcessingStep.java:87)	
	at dagger.internal.codegen.processingstep.ComponentProcessingStep.process(ComponentProcessingStep.java:49)	
	at dagger.internal.codegen.processingstep.TypeCheckingProcessingStep.lambda$process$0(TypeCheckingProcessingStep.java:94)	
	at com.google.common.collect.RegularImmutableMap.forEach(RegularImmutableMap.java:297)	
	at dagger.internal.codegen.processingstep.TypeCheckingProcessingStep.process(TypeCheckingProcessingStep.java:72)	
	at dagger.internal.codegen.processingstep.TypeCheckingProcessingStep.process(TypeCheckingProcessingStep.java:49)	
	at dagger.spi.internal.shaded.androidx.room.compiler.processing.XProcessingStep.process(XProcessingStep.kt:57)	
	at dagger.spi.internal.shaded.androidx.room.compiler.processing.CommonProcessorDelegate.processRound(XBasicAnnotationProcessor.kt:134)	
	at dagger.spi.internal.shaded.androidx.room.compiler.processing.javac.JavacBasicAnnotationProcessor.process(JavacBasicAnnotationProcessor.kt:75)	
	at org.jetbrains.kotlin.kapt3.base.incremental.IncrementalProcessor.process(incrementalProcessors.kt:90)

[bcorso]

I think this should have been fixed by #4211 (comment) but you'll need to use the HEAD-SNAPSHOTS until the next official release.

[ZacSweers]

quick edit - not specific to K2 kapt, this is just a general need for an updated release with newer kotlin-metadata

[TWiStErRob]

This became very relevant suddenly as Kotlin 2.1.0 is released.

We're on latest release (dagger = "2.52") and the error showed up in the Kotlin 2.1 Renovate PR.
Using dagger = "HEAD-SNAPSHOT" with

repositories {
    google()
    mavenCentral()
    exclusiveContent {
        forRepository {
            maven("https://oss.sonatype.org/content/repositories/snapshots") {
                name = "Sonatype SNAPSHOTs"
            }
        }
        filter {
            includeVersionByRegex("com\\.google\\.dagger.*", ".*", "HEAD-SNAPSHOT")
        }
    }
}

solves this issue, so this confirms Brad's claim above.

So we need a new Dagger/Hilt release to be able to use Kotlin 2.1.0.

[bcorso]

@TWiStErRob thanks for confirming. I'll be out the next few days, but I can do a release early next week.

[bcorso]

Closing. This should be fixed in Dagger 2.53.