Ktor: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.StandaloneCoroutine@28a82d8
works on android, breaks on ios
code:
fun triggerNetworkCall(){
GlobalScope.apply {
launch(Background) {
try {
val data = repository.getSettings()
} catch (t: Throwable) {
Logger.d("ktor", t.message?:"null")
}
}
}
}
suspend fun getSettings(): String? {
val response = apiConfig.getReferralData()
return response
}
suspend fun getReferralData(): String? {
val localClient = HttpClient(PlatformHttpClient.httpClientEngine){
install(JsonFeature)
}
return localClient.post {
url {
protocol = URLProtocol.HTTPS
host = "postman-echo.com"
encodedPath = "post"
}
contentType(ContentType.Application.Json)
body = "{}"
HttpMethod.Post
}
}
This post request works in android but fails in iOS with following stack trace:
Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.StandaloneCoroutine@1a8b4e8
whereas a get request works on both platforms. Following is the function being used:
suspend fun getReferralData(): String? {
val localClient = HttpClient(PlatformHttpClient.httpClientEngine){
install(JsonFeature)
}
val address = Url("https://postman-echo.com/get?foo1=bar1&foo2=bar2")
return localClient.get {
url {
url(address.toString())
}
}
}
Dispatchers definition:
iOS
internal actual val Main: CoroutineDispatcher = NsQueueDispatcher(dispatch_get_main_queue())
internal actual val Background: CoroutineDispatcher = Main
internal class NsQueueDispatcher(
private val dispatchQueue: dispatch_queue_t
) : CoroutineDispatcher() {
override fun dispatch(context: CoroutineContext, block: Runnable) {
dispatch_async(dispatchQueue) {
block.run()
}
}
}
android
internal actual val Main: CoroutineDispatcher = Dispatchers.Main
internal actual val Background: CoroutineDispatcher = Dispatchers.Default
dependencies
commonMain {
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-common:1.3.61"
implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime-common:0.14.0"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core-common:1.3.2-1.3.60"
implementation "co.touchlab:stately:0.9.4"
implementation "co.touchlab:stately-collections:0.9.4"
implementation "io.ktor:ktor-client-core:1.2.6"
implementation "io.ktor:ktor-client-json:1.2.6"
implementation "io.ktor:ktor-client-logging:1.2.6"
implementation "io.ktor:ktor-client-serialization:1.2.6"
implementation "com.github.aakira:napier:1.1.0"
}
}
androidMain {
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib:1.3.61"
implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.14.0"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.2-1.3.60"
implementation "io.ktor:ktor-client-core-jvm:1.2.6"
implementation "io.ktor:ktor-client-json-jvm:1.2.6"
implementation "io.ktor:ktor-client-logging-jvm:1.2.6"
implementation "io.ktor:ktor-client-serialization-jvm:1.2.6"
implementation "io.ktor:ktor-client-android:1.2.6"
implementation "com.github.aakira:napier-android:1.1.0"
}
}
iosMain {
dependencies {
implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime-native:0.14.0"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core-native:1.3.2-1.3.60"
implementation "io.ktor:ktor-client-core-native:1.2.6"
implementation "io.ktor:ktor-client-json-native:1.2.6"
implementation "io.ktor:ktor-client-logging-native:1.2.6"
implementation "io.ktor:ktor-client-serialization-native:1.2.6"
implementation "io.ktor:ktor-client-ios:1.2.6"
implementation "com.github.aakira:napier-ios:1.1.0"
}
}
mishrabhilash
All 23 comments
On upgrading to ktor 1.3.0-rc2 get request stopped working too. (on ios)
getting following exception:
Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.InvokeOnCancelling@3a6e688
Please note that on ios you may run ktor client on the main dispatcher. This difference should be avoided at some point but for not it is the only way.
cy6erGn0m
on 7 Jan 2020
@e5l any update on the same Also we have sent the slack invite please check
guptasourabh4
on 9 Jan 2020
@e5l any sample project that has post request captured as well will be helpful
guptasourabh4
on 9 Jan 2020
Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.
oleg-larshin
on 10 Aug 2020
This issue happens on version 1.4.0 while on 1.3.2-1.4.0-rc everything works fine.
sdtaheri
on 26 Aug 2020
Having a very similar issue on 1.4.0 when doing a simple get request on ios:
Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.ChildHandleNode@31dca08
reverting back to 1.3.2-1.4.0-rc works like a charm.
joaquim-verges
on 28 Aug 2020
Having a very similar issue on 1.4.0 when doing a simple get request on ios:
Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.ChildHandleNode@31dca08reverting back to 1.3.2-1.4.0-rc works like a charm.
same error with me.
xiaobailong24
on 28 Aug 2020
Having a very similar issue on 1.4.0 when doing a simple get request on ios:
Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.ChildHandleNode@31dca08
reverting back to 1.3.2-1.4.0-rc works like a charm.same error with me.
@joaquim-verges
I solve it.
```gradle.properties
kotlin_version=1.4.0
kotlinx_coroutines_version=1.3.9-native-mt
kotlinx_ktor_version=1.4.0
kotlinx_serialization_version=1.0.0-RC
```build.gradle.kts
// ...
sourceSets {
val commonMain by sourceSets.getting {
dependencies {
api("org.jetbrains.kotlinx:kotlinx-coroutines-core:$kotlinx_coroutines_version")
api("org.jetbrains.kotlinx:kotlinx-serialization-core:$kotlinx_serialization_version")
api("io.ktor:ktor-client-core:$kotlinx_ktor_version")
api("io.ktor:ktor-client-json:$kotlinx_ktor_version")
api("io.ktor:ktor-client-serialization:$kotlinx_ktor_version")
}
}
val iosMain by sourceSets.getting {
dependencies {
implementation("io.ktor:ktor-client-ios:$kotlinx_ktor_version")
}
}
val iosX64Main by sourceSets.getting {
dependencies {
}
}
val iosArm64Main by sourceSets.getting {
dependencies {
}
}
val androidMain by sourceSets.getting {
dependencies {
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:$kotlinx_coroutines_version")
implementation("io.ktor:ktor-client-android:$kotlinx_ktor_version")
}
}
}
```UserApi.kt
interface IUserApi {
suspend fun users(): List
}
expect val httpClientEngine: HttpClientEngine
class UserApi : IUserApi {
private val baseUrl = "https://jsonplaceholder.typicode.com"
private val client = HttpClient(httpClientEngine) {
install(JsonFeature) {
serializer = KotlinxSerializer(json = kotlinx.serialization.json.Json {
isLenient = false
ignoreUnknownKeys = true
allowSpecialFloatingPointValues = true
useArrayPolymorphism = false
})
}
}
override suspend fun users(): List<User> {
return client.get {
setupCall(Endpoint.USERS)
}
}
private fun HttpRequestBuilder.setupCall(endpoint: Endpoint) {
url {
takeFrom(urlString = baseUrl)
encodedPath += endpoint.path
}
}
}
```iosMain/HttpClientEngine.kt
import io.ktor.client.engine.*
import io.ktor.client.engine.ios.*
actual val httpClientEngine: HttpClientEngine
get() = Ios.create()
I have the same issue as @joaquim-verges and unfortunately, using kotlinx serialization 1.0.0-RC didn't fix it for me.
Doesn't this mean that KTOR http client 1.4.0 is essentially unusable for native?
Any other ideas?
Edit: I confirm that reverting to 1.3.2-1.4.0-rc also fixes this for me...
BoD
on 29 Aug 2020
Still get the same error (kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.ChildHandleNode) with kotlin 1.4.10 and coroutines 1.3.9-native-mt.
I configure the client like this in iOS specific Kodein module:
HttpClient {
engine {
Ios.create {
configureRequest {
setAllowsCellularAccess(true)
}
}
}
defaultRequest {
host = url
}
install(JsonFeature) {
serializer = KotlinxSerializer(
Json {
isLenient = true
ignoreUnknownKeys = true
allowSpecialFloatingPointValues = true
useArrayPolymorphism = true
}
)
}
}
i will try to configure it like @xiaobailong24 did right in the api client class, but i'm not sure it will help
DmyMi
on 13 Sep 2020
Any updates on this?
dphart
on 13 Sep 2020
I'm also facing the same issue on 1.4.0 and I thought my code was the issue or I misunderstood the variable freezing functionality. But as you all pointed out it is an issue with 1.4.0.
@e5l I understand that you have a huge load of work and that we all go to you when there is an issue especially with Ktor but we would very much appreciate any kind of update on this issue. If there is a workaround or should we revert back to 1.4.0-rc or if the issue is being worked on currently and expected to be fixed in the next version. Any kind of update would be very much appreciated.
hamada147
on 15 Sep 2020
Following a hint on here https://youtrack.jetbrains.com/issue/KTOR-915 the exception went away when I removed implementation "io.ktor:ktor-client-logging:$ktor_version"
Obviously not much of a solution, not sure why that issue is marked as resolved.
dhoskins
on 15 Sep 2020
removing logging feature did not help. Still got the same stack trace:
Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.ChildHandleNode@e8ef88
at 0 RNInject 0x0000000103dab76d kfun:kotlin.Throwable#<init>(kotlin.String?){} + 93 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/Throwable.kt:23:37)
at 1 RNInject 0x0000000103da3d5b kfun:kotlin.Exception#<init>(kotlin.String?){} + 91 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/Exceptions.kt:23:44)
at 2 RNInject 0x0000000103da3fab kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 91 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/Exceptions.kt:34:44)
at 3 RNInject 0x0000000103dde08b kfun:kotlin.native.concurrent.InvalidMutabilityException#<init>(kotlin.String){} + 91 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/native/concurrent/Freezing.kt:22:60)
at 4 RNInject 0x0000000103dde562 ThrowInvalidMutabilityException + 690 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/native/concurrent/Internal.kt:92:11)
at 5 RNInject 0x0000000103ed933c MutationCheck + 108
at 6 RNInject 0x00000001040d08f6 kfun:kotlinx.coroutines.internal.LinkedListNode#<set-_next>(kotlinx.coroutines.internal.LinkedListNode){} + 102 (/opt/buildAgent/work/44ec6e850d5c63f0/kotlinx-coroutines-core/native/src/internal/LinkedList.kt:19:28)
at 7 RNInject 0x00000001040d0edb kfun:kotlinx.coroutines.internal.LinkedListNode#addLast(kotlinx.coroutines.internal.LinkedListNode){} + 283 (/opt/buildAgent/work/44ec6e850d5c63f0/kotlinx-coroutines-core/native/src/internal/LinkedList.kt:31:9)
at 8 RNInject 0x00000001040d1226 kfun:kotlinx.coroutines.internal.LinkedListNode#addOneIfEmpty(kotlinx.coroutines.internal.LinkedListNode){}kotlin.Boolean + 230 (/opt/buildAgent/work/44ec6e850d5c63f0/kotlinx-coroutines-core/native/src/internal/LinkedList.kt:47:9)
at 9 RNInject 0x0000000103f6699f kfun:kotlinx.coroutines.JobSupport.promoteSingleToNodeList#internal + 463 (/opt/buildAgent/work/44ec6e850d5c63f0/kotlinx-coroutines-core/common/src/JobSupport.kt:532:15)
at 10 RNInject 0x0000000103f655fd kfun:kotlinx.coroutines.JobSupport#invokeOnCompletion(kotlin.Boolean;kotlin.Boolean;kotlin.Function1<kotlin.Throwable?,kotlin.Unit>){}kotlinx.coroutines.DisposableHandle + 2061 (/opt/buildAgent/work/44ec6e850d5c63f0/kotlinx-coroutines-core/common/src/JobSupport.kt:470:25)
at 11 RNInject 0x0000000103f64d6f kfun:kotlinx.coroutines.JobSupport#invokeOnCompletion(kotlin.Function1<kotlin.Throwable?,kotlin.Unit>){}kotlinx.coroutines.DisposableHandle + 207 (/opt/buildAgent/work/44ec6e850d5c63f0/kotlinx-coroutines-core/common/src/JobSupport.kt:449:9)
at 12 RNInject 0x0000000104424bc4 kfun:io.ktor.client#HttpClient(io.ktor.client.engine.HttpClientEngineFactory<0:0>;kotlin.Function1<io.ktor.client.HttpClientConfig<0:0>,kotlin.Unit>){0搂<io.ktor.client.engine.HttpClientEngineConfig>}io.ktor.client.HttpClient + 1156 (/opt/buildAgent/work/a85294440dc5c6e/ktor-client/ktor-client-core/common/src/io/ktor/client/HttpClient.kt:45:36)
at 13 RNInject 0x00000001044b4aae kfun:io.ktor.client#HttpClient(kotlin.Function1<io.ktor.client.HttpClientConfig<*>,kotlin.Unit>){}io.ktor.client.HttpClient + 638 (/opt/buildAgent/work/a85294440dc5c6e/ktor-client/ktor-client-core/posix/src/io/ktor/client/HttpClient.kt:18:46)
at 14 RNInject 0x00000001039b0da3 kfun:com.application.inject.networkModule$lambda-13$lambda-12#internal + 931 (/Users/user/AndroidStudioProjects/inject/src/iosMain/kotlin/com/aplication/inject/NetworkModule.kt:49:9)
at 15 RNInject 0x00000001039b4043 kfun:com.application.inject.$networkModule$lambda-13$lambda-12$FUNCTION_REFERENCE$43.invoke#internal + 179 (/Users/user/AndroidStudioProjects/inject/src/iosMain/kotlin/com/aplication/inject/NetworkModule.kt:47:38)
at 16 RNInject 0x000000010452b272 kfun:org.kodein.di.bindings.Provider.getFactory$lambda-0#internal + 402 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/bindings/standardBindings.kt:86:112)
at 17 RNInject 0x000000010452b4c0 kfun:org.kodein.di.bindings.Provider.$getFactory$lambda-0$FUNCTION_REFERENCE$81.invoke#internal + 208 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/bindings/standardBindings.kt:86:87)
at 18 RNInject 0x000000010453f8d1 kfun:org.kodein.di.internal.DIContainerImpl.factory$lambda-2#internal + 241 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/internal/DIContainerImpl.kt:160:22)
at 19 RNInject 0x000000010454041c kfun:org.kodein.di.internal.DIContainerImpl.$factory$lambda-2$FUNCTION_REFERENCE$98.invoke#internal + 204 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/internal/DIContainerImpl.kt:160:20)
at 20 RNInject 0x000000010451ef82 kfun:org.kodein.di.DIContainer.provider$<anonymous>_1#internal + 194 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/DIContainer.kt:23:1)
at 21 RNInject 0x000000010451f38d kfun:org.kodein.di.DIContainer.$provider$<anonymous>_1$FUNCTION_REFERENCE$25.invoke#internal + 157 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/DIContainer.kt:22:37)
at 22 RNInject 0x0000000104552278 kfun:org.kodein.di.internal.DirectDIBaseImpl#Instance(org.kodein.type.TypeToken<0:0>;kotlin.Any?){0搂<kotlin.Any>}0:0 + 984 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/internal/DirectDIImpl.kt:30:153)
at 23 RNInject 0x00000001039af117 kfun:com.application.inject.networkModule$lambda-13$lambda-1#internal + 823 (/Users/user/AndroidStudioProjects/inject/src/iosMain/kotlin/com/aplication/inject/NetworkModule.kt:31:44)
at 24 RNInject 0x00000001039b3ac3 kfun:com.application.inject.$networkModule$lambda-13$lambda-1$FUNCTION_REFERENCE$39.invoke#internal + 179 (/Users/user/AndroidStudioProjects/inject/src/iosMain/kotlin/com/aplication/inject/NetworkModule.kt:31:44)
at 25 RNInject 0x000000010452d152 kfun:org.kodein.di.bindings.Singleton.getFactory$lambda-3$lambda-2$lambda-1#internal + 370 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/bindings/standardBindings.kt:127:96)
at 26 RNInject 0x000000010452dcd1 kfun:org.kodein.di.bindings.Singleton.$getFactory$lambda-3$lambda-2$lambda-1$FUNCTION_REFERENCE$84.invoke#internal + 161 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/bindings/standardBindings.kt:127:67)
at 27 RNInject 0x0000000104526617 kfun:org.kodein.di.bindings.Reference.Local.Companion#invoke(kotlin.Function0<0:0>;kotlin.Function1<0:0,0:1>){0搂<kotlin.Any>;1搂<org.kodein.di.bindings.Reference<0:0>>}org.kodein.di.bindings.Reference.Local<0:0,0:1> + 343 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/bindings/references.kt:16:127)
at 28 RNInject 0x000000010452739a kfun:org.kodein.di.bindings.Strong.Companion#make(kotlin.Function0<0:0>){0搂<kotlin.Any>}org.kodein.di.bindings.Reference.Local<0:0,org.kodein.di.bindings.Strong<0:0>> + 330 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/bindings/references.kt:31:97)
at 29 RNInject 0x000000010452d367 kfun:org.kodein.di.bindings.Singleton.getFactory$lambda-3$lambda-2#internal + 391 (/Users/runner/work/Kodein-DI/Kodein-DI/kodein-di/src/commonMain/kotlin/org/kodein/di/bindings/standardBindings.kt:127:62)
I was able to solve this as noted in an earlier response by using version 1.3.9-native-mt of kotlinx.coroutines. If you use straight version 1.3.9 version you will get the InvalidMutabilityException.
dalewking
on 17 Sep 2020
Fixed with 1.3.9-native-mt-2
e5l
on 23 Sep 2020
Hi, I am using 1.3.9-native-mt-2 but I can't create Ktor-HttpClient in the iOS side. I don't know if I am missing something. My dependencies are:
kotlinVersion = "1.4.0"
ktorVersion = "1.4.0"
coroutineVersion = "1.3.9-native-mt-2"
serializerVersion = "1.0.0-RC"
internal actual val ApplicationDispatcher: CoroutineContext =
NsQueueDispatcher(dispatch_get_main_queue())
internal class NsQueueDispatcher(
private val dispatchQueue: dispatch_queue_t
) : CoroutineDispatcher() {
override fun dispatch(context: CoroutineContext, block: Runnable) {
dispatch_async(dispatchQueue) {
block.run()
}
}
}
But when try to create HttpClient this exception is thrown(kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlinx.coroutines.ChildHandleNode):
private val client by lazy {
HttpClient() {
install(JsonFeature) {
serializer = KotlinxSerializer(nonStrictJson)
}
install(Logging) {
logger = Logger.DEFAULT
level = LogLevel.INFO
}
}
}
jarroyoesp
on 23 Sep 2020
I'm facing the same issue as @jarroyoesp with one little difference. I'm using Kotlin Version 1.4.10
hamada147
on 23 Sep 2020
@jarroyoesp @hamada147
try create HttpClient with Ios HttpClientEngine.
For details, please refer to my example above.
xiaobailong24
on 24 Sep 2020
Try creating a new HttpClient every time you use it instead of retaining it in an instance variable. Also disable logging (remove the logging config from the client config).
I got everything working on my side with kotlin 1.4.10, ktor 1.4.0, coroutines 1.3.9-mt-2 and kotlinx.serialization 1.0.0-RC. It even works in a background thread (Dispatchers.DEFAULT). You have to take care though to create a new http client in the background thread for every call and to ensure you don't reference other classes there that are accessed from the main thread.
See the following sample code:
private suspend fun <T> withHttpClient(perform: suspend HttpClient.() -> T): T {
// Run the following in a background thread, the HttpClient itself has to be constructed in the background thread as well.
return withContext(Dispatchers.Default) {
// Specify the HttpClient configuration,
// be sure to not capture any global references because they will be frozen otherwise.
val configuration: HttpClientConfig<*>.() -> Unit = ...
val client = HttpClient(block = configuration)
try {
perform(client)
} finally {
client.close()
}
}
}
private fun <T: Any>deserialize(type: KClass<T>, bytes: ByteArray): T {
// Implement any deserialization logic or just use kotlinx.serialization
}
/**
* Sample HTTP get, result will be parsed in the background, but returned in the main thread
*/
suspend fun <T : Any> get(
path: String,
responseType: KClass<T>,
parameters: Map<String, Any>
): T {
// This happens in the main thread
return withHttpClient(accessToken) {
// This happens all in a background thread
get<ByteArray>(path = path) {
for ((key, value) in parameters) {
parameter(key, value)
}
}.let {
deserialize(responseType, it)
}
}
}
werner77
on 24 Sep 2020
@jarroyoesp @hamada147
try create HttpClient withIosHttpClientEngine.
For details, please refer to my example above.
Thanks, I tried it but it didn't work. Using this I had HttpClient: mutation attempt of frozen kotlinx.coroutines.JobImpl@37d2078
jarroyoesp
on 24 Sep 2020
Worked for me with version 1.3.9-native-mt-2
marcforn
on 24 Sep 2020
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This issue happens on version 1.4.0 while on 1.3.2-1.4.0-rc everything works fine.