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IOException when server closes the connection #1

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IOException when server closes the connection#1
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@dancingfrog
dancingfrog
opened on Jan 30, 2018

All of my reactor-netty apps, this one included, occasionally print this runtime exception upon ending/closing a connection:

2018-01-30 09:13:48.195 ERROR 3684 --- [ctor-http-nio-1] r.ipc.netty.channel.ChannelOperations    : [HttpClient] Error processing connection. Requesting close the channel

java.io.IOException: Connection closed prematurely
	at reactor.ipc.netty.http.client.HttpClientOperations.onInboundClose(HttpClientOperations.java:265) [reactor-netty-0.7.3.RELEASE.jar:0.7.3.RELEASE]
	at reactor.ipc.netty.channel.ChannelOperationsHandler.channelInactive(ChannelOperationsHandler.java:110) [reactor-netty-0.7.3.RELEASE.jar:0.7.3.RELEASE]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:75) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.http.HttpContentDecoder.channelInactive(HttpContentDecoder.java:205) [netty-codec-http-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:420) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:377) [netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:342) [netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.http.HttpClientCodec$Decoder.channelInactive(HttpClientCodec.java:282) [netty-codec-http-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:223) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:377) [netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:342) [netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.ssl.SslHandler.channelInactive(SslHandler.java:1010) [netty-handler-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1407) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:925) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:822) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) [netty-common-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404) [netty-common-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886) [netty-common-4.1.20.Final.jar:4.1.20.Final]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]

2018-01-30 09:13:48.198 ERROR 3684 --- [ctor-http-nio-1] r.ipc.netty.channel.ContextHandler       : Error cannot be forwarded to user-facing Mono

java.io.IOException: Connection closed prematurely
	at reactor.ipc.netty.http.client.HttpClientOperations.onInboundClose(HttpClientOperations.java:265) [reactor-netty-0.7.3.RELEASE.jar:0.7.3.RELEASE]
	at reactor.ipc.netty.channel.ChannelOperationsHandler.channelInactive(ChannelOperationsHandler.java:110) [reactor-netty-0.7.3.RELEASE.jar:0.7.3.RELEASE]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:75) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.http.HttpContentDecoder.channelInactive(HttpContentDecoder.java:205) [netty-codec-http-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:420) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:377) [netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:342) [netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.http.HttpClientCodec$Decoder.channelInactive(HttpClientCodec.java:282) [netty-codec-http-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:223) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:377) [netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:342) [netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.ssl.SslHandler.channelInactive(SslHandler.java:1010) [netty-handler-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1407) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:925) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:822) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) [netty-common-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404) [netty-common-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463) [netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886) [netty-common-4.1.20.Final.jar:4.1.20.Final]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]

2018-01-30 09:13:48.206 ERROR 3684 --- [     parallel-1] reactor.core.scheduler.Schedulers        : Scheduler worker in group main failed with an uncaught exception

java.io.IOException: Connection closed prematurely
	at reactor.ipc.netty.http.client.HttpClientOperations.onInboundClose(HttpClientOperations.java:265) ~[reactor-netty-0.7.3.RELEASE.jar:0.7.3.RELEASE]
	at reactor.ipc.netty.channel.ChannelOperationsHandler.channelInactive(ChannelOperationsHandler.java:110) ~[reactor-netty-0.7.3.RELEASE.jar:0.7.3.RELEASE]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:75) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.http.HttpContentDecoder.channelInactive(HttpContentDecoder.java:205) ~[netty-codec-http-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:420) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:377) ~[netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:342) ~[netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.http.HttpClientCodec$Decoder.channelInactive(HttpClientCodec.java:282) ~[netty-codec-http-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:223) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:377) ~[netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:342) ~[netty-codec-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.handler.ssl.SslHandler.channelInactive(SslHandler.java:1010) ~[netty-handler-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1407) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:925) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:822) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) ~[netty-common-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404) ~[netty-common-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463) ~[netty-transport-4.1.20.Final.jar:4.1.20.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886) ~[netty-common-4.1.20.Final.jar:4.1.20.Final]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]

...

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