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ktorio / ktor

Framework for quickly creating connected applications in Kotlin with minimal effort
https://ktor.io
Apache License 2.0
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Null Pointer Exception When Open Websocket Connection #1753

Closed codepawpaw closed 2 years ago

codepawpaw commented 4 years ago

Ktor Version and Engine Used (client or server and name) 1.2.5

Describe the bug I use ktor-server as a websocket server. This exception occurs only during the process of making web socket connections.

To Reproduce This problem occurs sometimes. So that I cannot describe the steps to produce this exception

Screenshots

java.lang.NullPointerException
    at io.ktor.server.netty.http1.NettyHttp1ApplicationResponse.respondUpgrade(NettyHttp1ApplicationResponse.kt:76)
    at io.ktor.server.engine.BaseApplicationResponse.respondOutgoingContent$suspendImpl(BaseApplicationResponse.kt:100)
    at io.ktor.server.engine.BaseApplicationResponse.respondOutgoingContent(BaseApplicationResponse.kt)
    at io.ktor.server.netty.NettyApplicationResponse.respondOutgoingContent$suspendImpl(NettyApplicationResponse.kt:34)
    at io.ktor.server.netty.NettyApplicationResponse.respondOutgoingContent(NettyApplicationResponse.kt)
    at io.ktor.server.engine.BaseApplicationResponse$Companion$setupSendPipeline$1.invokeSuspend(BaseApplicationResponse.kt:278)
    at io.ktor.server.engine.BaseApplicationResponse$Companion$setupSendPipeline$1.invoke(BaseApplicationResponse.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:268)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:141)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceedWith(PipelineContext.kt:151)
    at io.ktor.server.engine.DefaultTransformKt$installDefaultTransformations$1.invokeSuspend(DefaultTransform.kt:32)
    at io.ktor.server.engine.DefaultTransformKt$installDefaultTransformations$1.invoke(DefaultTransform.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:268)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:141)
    at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:161)
    at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
    at io.ktor.websocket.RoutingKt.respondWebSocketRaw(Routing.kt:163)
    at io.ktor.websocket.RoutingKt$webSocketRaw$2$1$1$1.invokeSuspend(Routing.kt:59)
    at io.ktor.websocket.RoutingKt$webSocketRaw$2$1$1$1.invoke(Routing.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:268)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:141)
    at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:161)
    at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
    at io.ktor.routing.Routing.executeResult(Routing.kt:147)
    at io.ktor.routing.Routing.interceptor(Routing.kt:34)
    at io.ktor.routing.Routing$Feature$install$1.invokeSuspend(Routing.kt:99)
    at io.ktor.routing.Routing$Feature$install$1.invoke(Routing.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:268)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:141)
    at io.ktor.features.StatusPages$interceptCall$2.invokeSuspend(StatusPages.kt:98)
    at io.ktor.features.StatusPages$interceptCall$2.invoke(StatusPages.kt)
    at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:91)
    at kotlinx.coroutines.CoroutineScopeKt.coroutineScope(CoroutineScope.kt:180)
    at io.ktor.features.StatusPages.interceptCall(StatusPages.kt:97)
    at io.ktor.features.StatusPages$Feature$install$2.invokeSuspend(StatusPages.kt:137)
    at io.ktor.features.StatusPages$Feature$install$2.invoke(StatusPages.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:268)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:141)
hyukchan commented 4 years ago

I also encountered the same problem using websockets

java.lang.NullPointerException: null
    at io.ktor.server.netty.http1.NettyHttp1ApplicationResponse.respondUpgrade(NettyHttp1ApplicationResponse.kt:76)
    at io.ktor.server.engine.BaseApplicationResponse.respondOutgoingContent$suspendImpl(BaseApplicationResponse.kt:101)
    at io.ktor.server.engine.BaseApplicationResponse.respondOutgoingContent(BaseApplicationResponse.kt)
    at io.ktor.server.netty.NettyApplicationResponse.respondOutgoingContent$suspendImpl(NettyApplicationResponse.kt:34)
    at io.ktor.server.netty.NettyApplicationResponse.respondOutgoingContent(NettyApplicationResponse.kt)
    at io.ktor.server.engine.BaseApplicationResponse$Companion$setupSendPipeline$1.invokeSuspend(BaseApplicationResponse.kt:307)
    at io.ktor.server.engine.BaseApplicationResponse$Companion$setupSendPipeline$1.invoke(BaseApplicationResponse.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceedWith(PipelineContext.kt:173)
    at io.ktor.server.engine.DefaultTransformKt$installDefaultTransformations$1.invokeSuspend(DefaultTransform.kt:34)
    at io.ktor.server.engine.DefaultTransformKt$installDefaultTransformations$1.invoke(DefaultTransform.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
    at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:183)
    at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
    at io.ktor.websocket.RoutingKt.respondWebSocketRaw(Routing.kt:172)
    at io.ktor.websocket.RoutingKt$webSocketRaw$2$1$1$1.invokeSuspend(Routing.kt:57)
    at io.ktor.websocket.RoutingKt$webSocketRaw$2$1$1$1.invoke(Routing.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
    at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:183)
    at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
    at io.ktor.routing.Routing.executeResult(Routing.kt:147)
    at io.ktor.routing.Routing.interceptor(Routing.kt:34)
    at io.ktor.routing.Routing$Feature$install$1.invokeSuspend(Routing.kt:99)
    at io.ktor.routing.Routing$Feature$install$1.invoke(Routing.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
    at io.ktor.features.ContentNegotiation$Feature$install$1.invokeSuspend(ContentNegotiation.kt:107)
    at io.ktor.features.ContentNegotiation$Feature$install$1.invoke(ContentNegotiation.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
    at io.ktor.features.CallLogging$Feature$install$2.invokeSuspend(CallLogging.kt:139)
    at io.ktor.features.CallLogging$Feature$install$2.invoke(CallLogging.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
    at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:183)
    at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
    at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$2.invokeSuspend(DefaultEnginePipeline.kt:120)
    at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$2.invoke(DefaultEnginePipeline.kt)
    at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
    at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
    at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:183)
    at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
    at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invokeSuspend(NettyApplicationCallHandler.kt:40)
    at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invoke(NettyApplicationCallHandler.kt)
    at kotlinx.coroutines.intrinsics.UndispatchedKt.startCoroutineUndispatched(Undispatched.kt:55)
    at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:111)
    at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:158)
    at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:54)
    at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
    at io.ktor.server.netty.NettyApplicationCallHandler.handleRequest(NettyApplicationCallHandler.kt:30)
    at io.ktor.server.netty.NettyApplicationCallHandler.channelRead(NettyApplicationCallHandler.kt:24)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
    at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:59)
    at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:368)
    at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
    at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
    at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
    at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.lang.Thread.run(Thread.java:748)
dmitrievanthony commented 4 years ago

Hi @jonathannatanaelsiahaan, @hyukchan.

I think I managed to reproduce it with a client that after connection break the connection immediately. Could you tell me whether it might be also your case?

codepawpaw commented 4 years ago

Hi @dmitrievanthony

Yes, that's was my case

olegcherr commented 3 years ago

Same problem.

oleg-larshin commented 3 years ago

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.

codepawpaw commented 3 years ago

Is there any update?

leolr02 commented 3 years ago

Still persist the problem, any idea for solve that?

Stexxe commented 2 years ago

Can't reproduce.