kotlinx.coroutines: kotlin.coroutines.jvm.internal.CompletedContinuation cannot be cast to kotlinx.coroutines.internal.DispatchedContinuation

I have this crash on runtime with Kotlin 1.5.31 and kotlinx.coroutines 1.5.2. I use BOM for Kotlin and corouties with enforcePlatform, so it looks that correct version is used on runtime

It looks exactly the same as https://github.com/Kotlin/kotlinx.coroutines/issues/2736 but this issue was closed and fix available in 1.5.2

So I report it separately.

kotlinx.coroutines.CoroutinesInternalError: Fatal exception in coroutines machinery for CancellableContinuation(DispatchedContinuation[Dispatchers.Main.immediate, Continuation at com.bandlab.listmanager.pagination.impl.PaginationListManagerImpl.reload$suspendImpl(PaginationListManagerImpl.kt:223)@ed822fb]){Cancelled}@5d18f18. Please read KDoc to 'handleFatalException' method and report this incident to maintainers
        at kotlinx.coroutines.DispatchedTask.handleFatalException(DispatchedTask.kt:144)
        at kotlinx.coroutines.DispatchedTaskKt.resumeUnconfined(DispatchedTask.kt:251)
        at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:161)
        at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:397)
        at kotlinx.coroutines.CancellableContinuationImpl.cancel(CancellableContinuationImpl.kt:183)
        at kotlinx.coroutines.CancellableContinuationImpl.parentCancelled$kotlinx_coroutines_core(CancellableContinuationImpl.kt:190)
        at kotlinx.coroutines.ChildContinuation.invoke(JobSupport.kt:1474)
        at kotlinx.coroutines.JobSupport.completeStateFinalization(JobSupport.kt:318)
        at kotlinx.coroutines.JobSupport.tryFinalizeSimpleState(JobSupport.kt:295)
        at kotlinx.coroutines.JobSupport.tryMakeCompleting(JobSupport.kt:856)
        at kotlinx.coroutines.JobSupport.makeCompletingOnce$kotlinx_coroutines_core(JobSupport.kt:828)
        at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:100)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
        at kotlinx.coroutines.DispatchedTaskKt.resume(DispatchedTask.kt:234)
        at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:166)
        at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:397)
        at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl(CancellableContinuationImpl.kt:431)
        at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl$default(CancellableContinuationImpl.kt:420)
        at kotlinx.coroutines.CancellableContinuationImpl.resumeUndispatched(CancellableContinuationImpl.kt:518)
        at kotlinx.coroutines.android.HandlerContext$scheduleResumeAfterDelay$$inlined$Runnable$1.run(Runnable.kt:19)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loopOnce(Looper.java:201)
        at android.os.Looper.loop(Looper.java:288)
        at android.app.ActivityThread.main(ActivityThread.java:7842)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
     Caused by: java.lang.ClassCastException: kotlin.coroutines.jvm.internal.CompletedContinuation cannot be cast to kotlinx.coroutines.internal.DispatchedContinuation
        at kotlinx.coroutines.CoroutineDispatcher.releaseInterceptedContinuation(CoroutineDispatcher.kt:107)
        at kotlin.coroutines.jvm.internal.ContinuationImpl.releaseIntercepted(ContinuationImpl.kt:118)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:39)
        at kotlinx.coroutines.DispatchedTaskKt.resume(DispatchedTask.kt:234)
        at kotlinx.coroutines.DispatchedTaskKt.resumeUnconfined(DispatchedTask.kt:190)
        at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:161) 
        at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:397) 
        at kotlinx.coroutines.CancellableContinuationImpl.cancel(CancellableContinuationImpl.kt:183) 
        at kotlinx.coroutines.CancellableContinuationImpl.parentCancelled$kotlinx_coroutines_core(CancellableContinuationImpl.kt:190) 
        at kotlinx.coroutines.ChildContinuation.invoke(JobSupport.kt:1474) 
        at kotlinx.coroutines.JobSupport.completeStateFinalization(JobSupport.kt:318) 
        at kotlinx.coroutines.JobSupport.tryFinalizeSimpleState(JobSupport.kt:295) 
        at kotlinx.coroutines.JobSupport.tryMakeCompleting(JobSupport.kt:856) 
        at kotlinx.coroutines.JobSupport.makeCompletingOnce$kotlinx_coroutines_core(JobSupport.kt:828) 
        at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:100) 
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46) 
        at kotlinx.coroutines.DispatchedTaskKt.resume(DispatchedTask.kt:234) 
        at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:166) 
        at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:397) 
        at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl(CancellableContinuationImpl.kt:431) 
        at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl$default(CancellableContinuationImpl.kt:420) 
        at kotlinx.coroutines.CancellableContinuationImpl.resumeUndispatched(CancellableContinuationImpl.kt:518) 
        at kotlinx.coroutines.android.HandlerContext$scheduleResumeAfterDelay$$inlined$Runnable$1.run(Runnable.kt:19) 
        at android.os.Handler.handleCallback(Handler.java:938) 
        at android.os.Handler.dispatchMessage(Handler.java:99) 
        at android.os.Looper.loopOnce(Looper.java:201) 
        at android.os.Looper.loop(Looper.java:288) 
        at android.app.ActivityThread.main(ActivityThread.java:7842) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)

About this issue

Original URL
State: closed
Created 3 years ago
Reactions: 4
Comments: 18 (9 by maintainers)

Most upvoted comments

I’ve found the root cause: https://youtrack.jetbrains.com/issue/KT-50832

As a workaround, please avoid method-references to suspend inline functions and use a plain lambda instead (e.g. ::WebWebSocketSession -> { WebSocketSession(it) }

+13

qwwdfsad on Jan 17, 2022

Can I ask you an unrelated question about Kotlin coroutines cancellation? documented here.

Sure, you can reach me out in public Slack (Vsevolod Tolstopyatov [JB]). I’m out of the context of what this code actually does and in need of some details to actually answer that

qwwdfsad on Nov 1, 2021

I just ran into this issues as well. It’s reprducible, but only after x invocations of th property based testing.

Here is the public repo, and a reference to the two failing tests: https://github.com/nomisRev/Continuation/blob/020b0c0e15786b23927fb94cd8833b6d2230b240/src/commonTest/kotlin/ContSpec.kt#L103

Hope this helps 👍

nomisRev on Oct 30, 2021

It crashes in 100% cases, this is quite a complex code, with a few linked scopes when suspend function is passed as lambda to be called on another scope For now, I work around it by replacing suspend lambda with standard lambda and just launching a new coroutine on a separate scope.

I can try to reproduce, but not sure that it would be easy

gildor on Oct 29, 2021