App Distribution plugin doesn't support Gradle configuration cache

Environment

• Android Studio version: Arctic Fox 2020.3.1 Patch 2
• Firebase Component: App distribution
• Component version: 2.2.0
• Gradle version: 7.2, AGP 7.0.2

Describe the problem

When trying to run the appDistributionUploadRelease with gradle configuration cache turned on it produces an error when storing the cache because the task isn’t set up to support it.

Steps to reproduce:

Run appDistributionUploadRelease (or any other build variant) with gradle configuration cache enabled. Error pasted below:

1 problem was found storing the configuration cache.

- Task `:target:mobile:app:appDistributionUploadCurrentStageRelease` of type `com.google.firebase.appdistribution.gradle.UploadDistributionTask`: cannot serialize object of type 'org.gradle.api.internal.project.DefaultProject', a subtype of 'org.gradle.api.Project', as these are not supported with the configuration cache.

  See https://docs.gradle.org/7.2/userguide/configuration_cache.html#config_cache:requirements:disallowed_types

FAILURE: Build failed with an exception.

* What went wrong:

Configuration cache state could not be cached: field 'appDistributionProperties' from type 'com.google.firebase.appdistribution.gradle.UploadDistributionTask': error writing value of type 'org.gradle.api.internal.provider.DefaultProperty'
> Configuration cache state could not be cached: field 'variant' from type 'com.google.firebase.appdistribution.gradle.AppDistributionProperties': error writing value of type 'com.android.build.gradle.internal.api.ApplicationVariantImpl'
   > Configuration cache state could not be cached: field 'unitTestVariant' from type 'com.android.build.gradle.internal.api.ApplicationVariantImpl': error writing value of type 'com.android.build.gradle.internal.api.UnitTestVariantImpl'
      > Configuration cache state could not be cached: field 'variantData' from type 'com.android.build.gradle.internal.api.UnitTestVariantImpl': error writing value of type 'com.android.build.gradle.internal.variant.TestVariantData'
         > Configuration cache state could not be cached: field 'testedVariantData' from type 'com.android.build.gradle.internal.variant.TestVariantData': error writing value of type 'com.android.build.gradle.internal.variant.ApplicationVariantData'
            > Configuration cache state could not be cached: field 'artifacts' from type 'com.android.build.gradle.internal.variant.ApplicationVariantData': error writing value of type 'com.android.build.api.artifact.impl.ArtifactsImpl'
               > Configuration cache state could not be cached: field 'storageProvider' from type 'com.android.build.api.artifact.impl.ArtifactsImpl': error writing value of type 'com.android.build.api.artifact.impl.StorageProviderImpl'
                  > Configuration cache state could not be cached: field 'directory' from type 'com.android.build.api.artifact.impl.StorageProviderImpl': error writing value of type 'com.android.build.api.artifact.impl.TypedStorageProvider'
                     > Configuration cache state could not be cached: field 'singleStorage' from type 'com.android.build.api.artifact.impl.TypedStorageProvider': error writing value of type 'java.util.LinkedHashMap'
                        > java.util.ConcurrentModificationException (no error message)

[aguatno]

I was able to see replicate the exception. Thanks @ribafish the mcve is very helpful. We’ll continue the investigation.

[eygraber]

firebaseAppDistribution {
        serviceCredentialsFile = System.getenv("APP_DISTRIBUTION_KEY")
        groups = "me"
        artifactType = "APK"
        artifactPath = "app/build/outputs/apk/release/app-release.apk"
}