AppendingTransformer blocks use of configuration cache (field data cannot be serialized)

[autonomousapps]

Shadow Version

7.1.2

Gradle Version

7.4

Expected Behavior

The configuration cache is supported. Sample invocation that fails:

./gradlew foo:shadowJar -m --configuration-cache

Actual Behavior

Attempting to use the configuration cache fails with the following:

// console output
$ ./gradlew bundle-aar:shadowJar -m --configuration-cache
3 problems were found storing the configuration cache, 1 of which seems unique.
- Task `:bundle-aar:shadowJar` of type `com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar`: cannot serialize object of type 'java.io.ByteArrayOutputStream', a subtype of 'java.io.OutputStream', as these are not supported with the configuration cache.
  See https://docs.gradle.org/7.4/userguide/configuration_cache.html#config_cache:requirements:disallowed_types

// and the configuration cache error report:
cannot serialize object of type java.io.ByteArrayOutputStream a subtype of java.io.OutputStream, as these are not supported with the configuration cache (https://docs.gradle.org/7.4/userguide/configuration_cache.html#config_cache:requirements:disallowed_types)
  field data of com.github.jengelman.gradle.plugins.shadow.transformers.AppendingTransformer
    bean of type com.github.jengelman.gradle.plugins.shadow.transformers.AppendingTransformer
      fieldtransformers of com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
        task:bundle-aar:shadowJar of type com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar

Note that this is only a dry run. It fails in the configuration phase, before it gets to the task action.

Gradle Build Script(s)

configurations {
  androidTools {
    // sdklib brings in a lot of unused code paths that can cause trouble with classpath conflicts.
    // Excluding for sanity.
    exclude group: 'com.android.tools', module: 'repository'
    exclude group: 'com.android.tools.analytics-library'
  }
}

// bundle and shade androidTools to avoid conflicting with AGP versions.
shadowJar {
  configurations = [project.configurations.androidTools]
  relocate 'com.android', 'bundle.aar.com.android'
  append 'META-INF/LICENSE.txt'
  append 'META-INF/LICENSE.md'
  append 'META-INF/NOTICE.md'
  mergeServiceFiles()
  minimize()
  dependencies {
    // don't fat jar kotlin
    exclude(dependency('org.jetbrains.kotlin:.*'))
  }
}

Content of Shadow JAR (jar tf <jar file> - post link to GIST if too long)

n/a