vavr-io/vavr

Strange behaviour, maybe an error when using peek on Android 5.1.1

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#2761 aperta il 3 apr 2024

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Descrizione

The following code runs fine on newer Android versions. However, I've encountered an issue on Android 5.1.1.

After an HTTP request is returned, attempting to use peek to retrieve either the data or an error response results in unexpected behavior.

My request looks like this:

public Either<Failure, Authenticated> executeRequest(Params params) {
// return Failure or Authenticated
}

I expect the result to be received in my view model. Here's a simplified example of the expected behavior:

myUseCase.execute(signIn).peek(
   failure -> {},
   result -> {}
);

Neither the failure nor the success callback is triggered in the view model. However, I observed the following log message:

Rejecting re-init on previously-failed class java.lang.Class<io.vavr.control.Either$$ExternalSyntheticLambda0>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.control.Either$$ExternalSyntheticLambda0>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.control.Either$$ExternalSyntheticLambda1>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.control.Either$$ExternalSyntheticLambda1>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.control.Either$$ExternalSyntheticLambda2>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.control.Either$$ExternalSyntheticLambda2>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.Function1>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.Function1>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.PartialFunction>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.PartialFunction>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Seq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Seq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.IndexedSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.IndexedSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Vector>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Vector>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.IndexedSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Array>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Array>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Array>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.IndexedSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.CharSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.CharSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.CharSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.PartialFunction>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Seq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.LinearSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.LinearSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.List>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.List>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.List>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.LinearSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Queue>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Queue>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Queue>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Map>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.SortedMap>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.LinearSeq>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Stream>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Stream>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Stream>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.List>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.List>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Vector>
Rejecting re-init on previously-failed class java.lang.Class<io.vavr.collection.Vector>
Rejecting re-init on previously-failed class java.lang.Class<com.mypackage.myapp.fragments.LoginFragmentViewModel$$ExternalSyntheticLambda1>

If I rewrite this using the following, it works:

Either<Failure, Authenticated> result = myUseCase.execute(signIn);

if(result.isLeft()) {
   Failure failure = result.getLeft();
} else {
   Authenticated authenticated = result.get();
}

Guida contributor

Direzione di ricerca
Investigare gli errori di log 'Rejecting re init on previously failed class', che indicano che le classi lambda della libreria vavr non vengono inizializzate su Android 5.1.1, causando la mancata esecuzione delle callback del metodo peek. Riprodurre su un emulatore o dispositivo Android 5.1.1, verificare se il problema è legato al desugaring delle lambda Java 8 o all'offuscamento ProGuard/R8. Considerare l'uso della versione non lambda di peek o l'aggiornamento della libreria vavr se esiste una correzione.
Tech stack
javaandroid
Dominio
mobile
Tipo issue
Bug
DifficoltàQuanto dovrebbe essere impegnativa per un nuovo contributor.
3
Tempo stimatoTempo stimato per completare e verificare uno scope piccolo.
Mezza giornata
Stato attivitàQuanto è probabile che la issue sia ancora attiva e reviewable.
Attiva
ChiarezzaQuanto chiaramente la issue descrive problema, scope e risultato atteso.
Chiara
Prerequisiti
JavaAndroid
Adatta ai principiantiQuanto la issue è adatta a contributor alla prima esperienza.
40