Usage of API 24+ API in DataStore crashes App when running on API 22 while minSdkVersion saying API 16 is required

[HuiSF]

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Language and Async Model

Java

Amplify Categories

DataStore

Gradle script dependencies

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Environment information

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Please include any relevant guides or documentation you're referencing

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Describe the bug

In gradle.build the minSdkVersion is defined as 16, meaning API 16 is require to run the App built with amplify-android.

https://github.com/aws-amplify/amplify-android/blob/880a182814514f9bce2c914ced44756f8af52f40/build.gradle#L56-L58

However, usage of API provided by API 24+ exists in the codebase, e.g.

https://github.com/aws-amplify/amplify-android/blob/880a182814514f9bce2c914ced44756f8af52f40/aws-datastore/src/main/java/com/amplifyframework/datastore/syncengine/SyncProcessor.java#L248-L250

The AtomicReference#accumulateAndGet was added in API 24.

And when developer tries to deploy App and run, e.g. on API 22, App crashes.

Fatal Exception: java.lang.NoClassDefFoundError: com.amplifyframework.datastore.syncengine.SyncProcessor$$ExternalSyntheticLambda13
       at com.amplifyframework.datastore.syncengine.SyncProcessor.lambda$syncModel$13(SyncProcessor.java:249)
       at com.amplifyframework.datastore.syncengine.SyncProcessor.$r8$lambda$2cJLxw0MiDnoj5SD1yHgXEAXleg(SyncProcessor.java)
       at com.amplifyframework.datastore.syncengine.SubscriptionProcessor$$InternalSyntheticLambda$0$dad4a5859176b69f01dda9628153ddd3768e4a48c8c9943a26aea231e4ca30ff$3.test$bridge(SubscriptionProcessor.java)
       at io.reactivex.rxjava3.internal.operators.flowable.FlowableTakeUntilPredicate$InnerSubscriber.onNext(FlowableTakeUntilPredicate.java:60)
       at io.reactivex.rxjava3.internal.operators.flowable.FlowableMap$MapSubscriber.onNext(FlowableMap.java:69)
       at io.reactivex.rxjava3.internal.operators.flowable.FlowableDoOnEach$DoOnEachSubscriber.onNext(FlowableDoOnEach.java:92)
       at io.reactivex.rxjava3.internal.util.HalfSerializer.onNext(HalfSerializer.java:45)

The minSdkVersion should reflect the actual required API level.

Reproduction steps (if applicable)

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Code Snippet

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Log output

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amplifyconfiguration.json

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GraphQL Schema

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