vavr-io/vavr

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

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#2.761 aberto em 3 de abr. de 2024

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Description

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();
}

Guia do colaborador

Direção de pesquisa
Investigue os erros de log 'Rejecting re init on previously failed class', que indicam que as classes lambda da biblioteca vavr falham ao inicializar no Android 5.1.1, causando a não execução dos callbacks do método peek. Reproduza em um emulador ou dispositivo Android 5.1.1, verifique se o problema está relacionado ao desugaring de lambda do Java 8 ou ofuscação ProGuard/R8. Considere usar a versão não lambda do peek ou atualizar a biblioteca vavr se houver uma correção.
Pilha de tecnologia
javaandroid
Domain
mobile
Tipo Issue
Bug
DifficultyDificuldade de implementação estimada para um novo contribuidor, de 1 para alterações muito pequenas a 5 para trabalho de nível especializado.
3
Tempo estimadoUm intervalo de tempo aproximado para um colaborador experiente investigar, implementar, testar e preparar um pull request.
Meio dia
Status da atividadeQuão disponível o issue aparece agora: novo, ativo, obsoleto, bloqueado ou aguardando entrada do mantenedor.
Ativo
ClarityCom que clareza o issue explica a mudança esperada, os critérios de aceitação e a próxima etapa.
Claro
Prerequisites
JavaAndroid
Simpatia para novatosUma pontuação de 1 a 100 que estima o quão acessível este issue é para colaboradores iniciantes.
40