Kotlinx.coroutines: Proguard warnings on 1.3.0-M1 with flows

Created on 13 Jun 2019  路  31Comments  路  Source: Kotlin/kotlinx.coroutines

Proguard rules applied from coroutines.pro
After upgrating to 1.3.0-M1 I got these warnings:

Warning: kotlinx.coroutines.flow.ChannelFlowMerge$mergeImpl$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.ChannelFlowMerge$mergeImpl$$inlined$collect$1
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ContextKt$$special$$inlined$collect$1$1: can't find referenced class kotlinx.coroutines.flow.FlowKt__ContextKt$$special$$inlined$collect$

Are they safe to ignore?

android bug
Source
picture kaserdan
👍4

Most helpful comment

I think you can be more specific with the proguard rule. I believe the only issues here are the inlined functions.
-dontwarn kotlinx.coroutines.flow.**inlined**

picture shmuelr on 5 Sep 2019
👍13 👎3

All 31 comments

Yes. I'm not sure why would ProGuard complain about that and what can we do about it. It looks like ProGuard bug to me.

elizarov picture elizarov on 18 Jun 2019

This is a compiler bug: https://youtrack.jetbrains.com/issue/KT-31242. It is fixed in 1.3.40. Until then, IMHO, it is safe to ignore them.

ilmirus picture ilmirus on 18 Jun 2019
👍2

Fixed in 1.3.0-M2

qwwdfsad picture qwwdfsad on 28 Jun 2019

I'm still facing the same issue after updating to 1.3.0-M2

CrisBarreiro picture CrisBarreiro on 19 Jul 2019

@CrisBarreiro could you please attach a reproducer?

I've verified, the bytecode does not have references to eliminated state machines (at least, in my setup)

qwwdfsad picture qwwdfsad on 19 Jul 2019

Facing similar issue with Flows
Warning: com.my.app.MyViewModel$1$invokeSuspend$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class com.my.app.MyViewModel$1$invokeSuspend$$inlined$collect$1

In code:
myInteractor.myFlow() .filterNotNull() .collect { }

avinz picture avinz on 19 Jul 2019
👍2

Any solution to this?

amankgo picture amankgo on 21 Jul 2019

Exists in v1.3.0

Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$10$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$10
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$2$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$2
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$3$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$3
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$4$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$4
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$5$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$5
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$6$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$6
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$7$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$7
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$8$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$8
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$9$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$9
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$flowOf$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$flowOf$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ContextKt$flowWith$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ContextKt$flowWith$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__CountKt$count$$inlined$collect$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__CountKt$count$$inlined$collect$2
Warning: kotlinx.coroutines.flow.FlowKt__DelayKt$debounce$2$values$1$invokeSuspend$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DelayKt$debounce$2$values$1$invokeSuspend$$inlined$collect$1
Warning: kotlinx.coroutines.flow.FlowKt__DelayKt$sample$2$values$1$invokeSuspend$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DelayKt$sample$2$values$1$invokeSuspend$$inlined$collect$1
Warning: kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChanged$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChanged$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1
Warning: kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChanged$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChanged$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2
Warning: kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChangedBy$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChangedBy$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1
Warning: kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChangedBy$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChangedBy$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2
Warning: kotlinx.coroutines.flow.FlowKt__EmittersKt$onCompletion$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__EmittersKt$onCompletion$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__EmittersKt$onStart$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__EmittersKt$onStart$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ErrorsKt$catch$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ErrorsKt$catch$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ErrorsKt$catchImpl$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ErrorsKt$catchImpl$$inlined$collect$1
Warning: kotlinx.coroutines.flow.FlowKt__ErrorsKt$retryWhen$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ErrorsKt$retryWhen$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$drop$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$drop$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$dropWhile$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$dropWhile$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$take$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$take$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$take$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$take$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$takeWhile$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$takeWhile$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$takeWhile$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$takeWhile$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapConcat$$inlined$map$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapConcat$$inlined$map$1
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapConcat$$inlined$map$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapConcat$$inlined$map$1$2
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapMerge$$inlined$map$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapMerge$$inlined$map$1
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapMerge$$inlined$map$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapMerge$$inlined$map$1$2
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flattenConcat$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flattenConcat$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ReduceKt$first$$inlined$collect$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ReduceKt$first$$inlined$collect$2
Warning: kotlinx.coroutines.flow.FlowKt__ReduceKt$reduce$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ReduceKt$reduce$$inlined$collect$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$filterNotNull$$inlined$unsafeTransform$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$filterNotNull$$inlined$unsafeTransform$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$scan$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$scan$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$scan$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$scan$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$scanReduce$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$scanReduce$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$withIndex$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$withIndex$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ZipKt$combine$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ZipKt$combine$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.internal.ChannelFlowMerge$collectTo$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.ChannelFlowMerge$collectTo$$inlined$collect$1
Warning: kotlinx.coroutines.flow.internal.ChannelFlowMerge$collectTo$$inlined$collect$1$lambda$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.ChannelFlowMerge$collectTo$$inlined$collect$1
Warning: kotlinx.coroutines.flow.internal.ChannelFlowTransformLatest$flowCollect$3$invokeSuspend$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.ChannelFlowTransformLatest$flowCollect$3$invokeSuspend$$inlined$collect$1
Warning: kotlinx.coroutines.flow.internal.ChannelFlowTransformLatest$flowCollect$3$invokeSuspend$$inlined$collect$1$lambda$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.ChannelFlowTransformLatest$flowCollect$3$invokeSuspend$$inlined$collect$1
Warning: kotlinx.coroutines.flow.internal.CombineKt$zipImpl$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.CombineKt$zipImpl$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.internal.FlowCoroutineKt$scopedFlow$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.FlowCoroutineKt$scopedFlow$$inlined$unsafeFlow$1
jemshit picture jemshit on 27 Aug 2019

@jemshit What Kotlin version are you using?

elizarov picture elizarov on 27 Aug 2019

Hi
i am also facing the same issue. i am using the kotlin version 1.3.41.

sateeshb picture sateeshb on 27 Aug 2019

Can you provide a simple project that reproduces the problem?

elizarov picture elizarov on 27 Aug 2019

kotlin 1.3.50, Android Studio 3.5 (with latest kotlin plugin)

jemshit picture jemshit on 28 Aug 2019

I am also facing this issue.
In my project, using Kotlin 1.3.50, just implementing org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.0 or org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.0 produces the proguard warning even if i don't use some Flow operators in Kotlin files. I've not led to reproduce it in simple project yet.

aosa4054 picture aosa4054 on 28 Aug 2019

Here's an Android Studio project that reproduces the issue when ./gradlew assembleRelease is run. (It's a new project, the only changes I made were to add org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.0 as a dependency, turn on minification for release builds, and add android.enableR8=false to gradle.properties in order to use proguard instead of R8.)

CoroutinesProguardIssue.zip

jschear picture jschear on 30 Aug 2019
👍2

@jschear Thanks a lot. I've updated https://youtrack.jetbrains.com/issue/KT-31242 that had, indeed, regressed.

elizarov picture elizarov on 3 Sep 2019
👍2

in proguard-rules just add: -dontwarn kotlinx.coroutines.flow.**

pana777 picture pana777 on 5 Sep 2019
👎1 👍1

I think you can be more specific with the proguard rule. I believe the only issues here are the inlined functions.
-dontwarn kotlinx.coroutines.flow.**inlined**

shmuelr picture shmuelr on 5 Sep 2019
👍13 👎3

yeah you are right

pana777 picture pana777 on 5 Sep 2019

5 months without a fix for https://youtrack.jetbrains.com/issue/KT-31242 is pretty painful.

@elizarov - any chance you could apply some pressure to get the timeline for fixing this sped up? It has the unfortunate side effect of making Coroutines/Flow look bad (flow heavily uses inline/crossinline), even though this is not the fault of the Coroutines lib

ZakTaccardi picture ZakTaccardi on 11 Sep 2019
👍7

@ZakTaccardi KT-31242 was just recently reopened. Work in progress.

elizarov picture elizarov on 11 Sep 2019
👍3

What's the workaround until the issue is fixed?
Neither -dontwarn kotlinx.coroutines.flow.**inlined** nor -dontwarn kotlinx.coroutines.flow.** work for me. But I can also wait for Kotlin 1.3.70. The latest EAP version worked already.

sebastianharder picture sebastianharder on 29 Jan 2020
👍1

Besides the above rules I had to add the following:

-dontwarn kotlinx.coroutines.reactive.**otherwise I was getting:

Warning: kotlinx.coroutines.reactive.FlowSubscription$consumeFlow$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.reactive.FlowSubscription$consumeFlow$$inlined$collect$1

Whatever the fix is, kindly fix the reactive bindings as well. Thank you!

digitalbuddha picture digitalbuddha on 3 Feb 2020

@digitalbuddha could you please check whether the problem reproduces on the latest 1.3.70-eap?
The companion kotlinx.coroutines version is 1.3.3-1.3.70-eap-42

qwwdfsad picture qwwdfsad on 3 Feb 2020

Note that you'll need to compile this library with 1.3.70 eap and then consume that to confirm.

JakeWharton picture JakeWharton on 3 Feb 2020

Exists in v1.3.70-eap-184

Warning: androidx.lifecycle.FlowLiveDataConversions$asLiveData$1$invokeSuspend$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class androidx.lifecycle.FlowLiveDataConversions$asLiveData$1$invokeSuspend$$inlined$collect$1
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$10$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$10
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$2$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$2
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$3$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$3
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$4$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$4
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$5$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$5
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$6$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$6
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$7$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$7
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$8$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$8
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$9$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$asFlow$$inlined$unsafeFlow$9
Warning: kotlinx.coroutines.flow.FlowKt__BuildersKt$flowOf$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__BuildersKt$flowOf$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ContextKt$flowWith$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ContextKt$flowWith$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__CountKt$count$$inlined$collect$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__CountKt$count$$inlined$collect$2
Warning: kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChanged$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChanged$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1
Warning: kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChanged$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChanged$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2
Warning: kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChangedBy$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChangedBy$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1
Warning: kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChangedBy$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__DistinctKt$distinctUntilChangedBy$$inlined$distinctUntilChangedBy$FlowKt__DistinctKt$1$2
Warning: kotlinx.coroutines.flow.FlowKt__EmittersKt$onCompletion$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__EmittersKt$onCompletion$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__EmittersKt$onStart$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__EmittersKt$onStart$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ErrorsKt$catch$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ErrorsKt$catch$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ErrorsKt$catchImpl$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ErrorsKt$catchImpl$$inlined$collect$1
Warning: kotlinx.coroutines.flow.FlowKt__ErrorsKt$retryWhen$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ErrorsKt$retryWhen$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$drop$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$drop$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$dropWhile$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$dropWhile$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$take$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$take$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$take$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$take$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$takeWhile$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$takeWhile$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__LimitKt$takeWhile$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__LimitKt$takeWhile$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapConcat$$inlined$map$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapConcat$$inlined$map$1
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapConcat$$inlined$map$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapConcat$$inlined$map$1$2
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapMerge$$inlined$map$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapMerge$$inlined$map$1
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapMerge$$inlined$map$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flatMapMerge$$inlined$map$1$2
Warning: kotlinx.coroutines.flow.FlowKt__MergeKt$flattenConcat$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__MergeKt$flattenConcat$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ReduceKt$first$$inlined$collect$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ReduceKt$first$$inlined$collect$2
Warning: kotlinx.coroutines.flow.FlowKt__ReduceKt$reduce$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ReduceKt$reduce$$inlined$collect$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$filterNotNull$$inlined$unsafeTransform$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$filterNotNull$$inlined$unsafeTransform$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$scan$$inlined$unsafeFlow$1$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$scan$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$scan$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$scan$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$scanReduce$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$scanReduce$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__TransformKt$withIndex$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__TransformKt$withIndex$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ZipKt$combine$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.FlowKt__ZipKt$combine$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.FlowKt__ZipKt$combineTransform$$inlined$combineTransform$1$1: can't find enclosing method 'java.lang.Object invokeSuspend$$forInline(java.lang.Object)' in program class kotlinx.coroutines.flow.FlowKt__ZipKt$combineTransform$$inlined$combineTransform$1
Warning: kotlinx.coroutines.flow.FlowKt__ZipKt$combineTransform$$inlined$combineTransform$1$2: can't find enclosing method 'java.lang.Object invokeSuspend$$forInline(java.lang.Object)' in program class kotlinx.coroutines.flow.FlowKt__ZipKt$combineTransform$$inlined$combineTransform$1
Warning: kotlinx.coroutines.flow.internal.ChannelFlowMerge$collectTo$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.ChannelFlowMerge$collectTo$$inlined$collect$1
Warning: kotlinx.coroutines.flow.internal.ChannelFlowMerge$collectTo$$inlined$collect$1$lambda$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.ChannelFlowMerge$collectTo$$inlined$collect$1
Warning: kotlinx.coroutines.flow.internal.ChannelFlowTransformLatest$flowCollect$3$invokeSuspend$$inlined$collect$1$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.ChannelFlowTransformLatest$flowCollect$3$invokeSuspend$$inlined$collect$1
Warning: kotlinx.coroutines.flow.internal.ChannelFlowTransformLatest$flowCollect$3$invokeSuspend$$inlined$collect$1$lambda$1: can't find enclosing method 'java.lang.Object emit$$forInline(java.lang.Object,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.ChannelFlowTransformLatest$flowCollect$3$invokeSuspend$$inlined$collect$1
Warning: kotlinx.coroutines.flow.internal.CombineKt$zipImpl$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.CombineKt$zipImpl$$inlined$unsafeFlow$1
Warning: kotlinx.coroutines.flow.internal.FlowCoroutineKt$scopedFlow$$inlined$unsafeFlow$1$lambda$1: can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program class kotlinx.coroutines.flow.internal.FlowCoroutineKt$scopedFlow$$inlined$unsafeFlow$1

hongsigi picture hongsigi on 12 Feb 2020

And to be clear, you've compiled the kotlinx.coroutines library yourself using 1.3.70 and then consumed it in your app and it still produces that warning?

Or have you only bumped your app to 1.3.70 and consumed the released version of kotlinx.coroutines?

JakeWharton picture JakeWharton on 12 Feb 2020

Is there any workaround for this issue?
Tried -
-dontwarn kotlinx.coroutines.flow.**inlined** and also -dontwarn kotlinx.**.**. But no luck :(

vivekwolf123 picture vivekwolf123 on 21 Feb 2020

This appears fixed (at least for me) with Kotlin 1.3.70 & Coroutines 1.3.4

markdingram picture markdingram on 15 Mar 2020

I use Kotlin 1.3.70 & Coroutines 1.3.4 but still have
can't find enclosing method 'java.lang.Object collect$$forInline(kotlinx.coroutines.flow.FlowCollector,kotlin.coroutines.Continuation)' in program

SoNep picture SoNep on 16 Mar 2020

@SoNep could you please provide a reproducer?

qwwdfsad picture qwwdfsad on 16 Mar 2020

flow.mapNotNull{}
in dynamic module.
use proguarg, no R8
I sort out with -dontwarn this file

SoNep picture SoNep on 16 Mar 2020
Was this page helpful?
0 / 5 - 0 ratings

Related issues

ScottPierce picture ScottPierce  路  3Comments
diousk picture diousk  路  3Comments
mttmllns picture mttmllns  路  3Comments
mhernand40 picture mhernand40  路  3Comments
iTanChi picture iTanChi  路  3Comments