kotlin .coroutines.intrinsics.CoroutineSingletons не может быть приведен к дооснащению. Ответ - PullRequest
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kotlin .coroutines.intrinsics.CoroutineSingletons не может быть приведен к дооснащению. Ответ

1 голос
/ 31 марта 2020

Поэтому я использую модификацию с сопрограммами и объявил метод в сервисе: 

@GET("notifications")
    suspend fun getNotificationsAsync(@QueryMap paramsHashMap:HashMap<String,String>): Response<JsonObject>

В репо: 

suspend inline fun <reified T> notificationApiForPagingAsync(hashMapParams: HashMap<String,String>, onPrepare:()->Unit, onSuccess:(list:List<T>)->Unit, onError:(errorMessage:String)->Unit){
// crashing on below line
        val response=notificationService.getNotificationsAsync(hashMapParams)

        safeApiCallForPaging(response,onPrepare = onPrepare
            , onSuccess = {
                val listOfNotification=it.data?.fromJsonTo<List<Notification>>("notifications")?: emptyList()
                onSuccess(listOfNotification as @kotlin.ParameterName(name = "list") List<T>)
            }, onError = onError)
    }

И звоню из DataSource следующим образом: 

coroutineScope.launch(Dispatchers.IO) {
                makeLoadAfter(params, callback) // notificationApiForPagingAsync of repo will be called from here
        }

И это дает следующую ошибку: 

AndroidRuntime: FATAL EXCEPTION: DefaultDispatcher-worker-1
Process: com.package.name.dev, PID: 20173
java.lang.ClassCastException: kotlin.coroutines.intrinsics.CoroutineSingletons cannot be cast to retrofit2.Response
at com.package.name.notification.NewNotificationViewModel$configurePaging$1.invoke(NewNotificationViewModel.kt:53)
at com.package.name.notification.NewNotificationViewModel$configurePaging$1.invoke(NewNotificationViewModel.kt:15)
at com.package.name.common.paging.GenericDataSource.makeLoadAfter(GenericDataSource.kt:85)
at com.package.name.common.paging.GenericDataSource$loadAfter$1.invokeSuspend(GenericDataSource.kt:32)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(Dispatched.kt:241)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:594)
at kotlinx.coroutines.scheduling.CoroutineScheduler.access$runSafely(CoroutineScheduler.kt:60)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:740)
E/AndroidRuntime: FATAL EXCEPTION: DefaultDispatcher-worker-2
Process: com.package.name.dev, PID: 20173
kotlinx.coroutines.CoroutinesInternalError: Fatal exception in coroutines machinery for DispatchedContinuation[LimitingDispatcher@53edd6d[dispatcher = DefaultDispatcher], Continuation at com.package.name.common.paging.GenericDataSource$loadAfter$1.invokeSuspend(GenericDataSource.kt:32)@a30868f]. Please read KDoc to 'handleFatalException' method and report this incident to maintainers
at kotlinx.coroutines.DispatchedTask.handleFatalException$kotlinx_coroutines_core(Dispatched.kt:278)
at kotlinx.coroutines.DispatchedTask.run(Dispatched.kt:249)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:594)
at kotlinx.coroutines.scheduling.CoroutineScheduler.access$runSafely(CoroutineScheduler.kt:60)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:740)
Caused by: java.lang.IllegalStateException: Job StandaloneCoroutine{Cancelling}@d4d1184 is already complete or completing, but is being completed with CompletedExceptionally[kotlinx.coroutines.JobCancellationException: StandaloneCoroutine is cancelling; job=StandaloneCoroutine{Cancelling}@d4d1184]
at kotlinx.coroutines.JobSupport.makeCompletingOnce$kotlinx_coroutines_core(JobSupport.kt:788)
at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:111)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
at kotlinx.coroutines.DispatchedTask.run(Dispatched.kt:334)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:594) 
at kotlinx.coroutines.scheduling.CoroutineScheduler.access$runSafely(CoroutineScheduler.kt:60) 
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:740) 
Caused by: kotlinx.coroutines.JobCancellationException: StandaloneCoroutine is cancelling; job=StandaloneCoroutine{Cancelling}@d4d1184
Caused by: java.lang.ClassCastException: kotlin.coroutines.intrinsics.CoroutineSingletons cannot be cast to retrofit2.Response
at com.package.name.notification.NewNotificationViewModel$configurePaging$1.invoke(NewNotificationViewModel.kt:53)
at com.package.name.notification.NewNotificationViewModel$configurePaging$1.invoke(NewNotificationViewModel.kt:15)
at com.package.name.common.paging.GenericDataSource.makeLoadAfter(GenericDataSource.kt:85)
at com.package.name.common.paging.GenericDataSource$loadAfter$1.invokeSuspend(GenericDataSource.kt:32)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(Dispatched.kt:241)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:594)
at kotlinx.coroutines.scheduling.CoroutineScheduler.access$runSafely(CoroutineScheduler.kt:60)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:740)

Что нужно учесть здесь:

  1. В DataSource я создал отдельную область, также пробованную с GlobalScope и viewModelScope, но получаю то же исключение.
  2. Но если я вызываю этот API из ViewModel напрямую вместо DataSource, он работает нормально.
  3. Текущая версия kotlin Я использую это: 1.3.61

Дайте мне знать, если требуется больше кода.

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