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    Normally, the connection to an HTTP server is closed after each response. Change the network connection and make sure the network is stable when making the request. When the server closes such a connection the client usually reopens it again.

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via Stack Overflow by BullyWiiPlaza
, 1 year ago
via YouTrack by Unknown author, 2 years ago
via Stack Overflow by Adnan Umer
, 1 year ago
failed to create a child event loop
via GitHub by n59yl
, 2 years ago
failed to create a child event loop
java.lang.IllegalStateException: failed to create a child event loop at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:81) at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:50) at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:72) at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:58) at org.jetbrains.io.BuiltInServer.start(BuiltInServer.java:78) at com.intellij.idea.SocketLock$2.call(SocketLock.java:131) at com.intellij.idea.SocketLock$2.call(SocketLock.java:112) at com.intellij.idea.SocketLock.underLocks(SocketLock.java:155) at com.intellij.idea.SocketLock.lock(SocketLock.java:112) at com.intellij.idea.StartupUtil.lockSystemFolders(StartupUtil.java:263) at com.intellij.idea.StartupUtil.prepareAndStart(StartupUtil.java:101) at com.intellij.idea.MainImpl.start(MainImpl.java:34) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.intellij.ide.plugins.PluginManager$2.run(PluginManager.java:90) at java.lang.Thread.run(Thread.java:745)Caused by: io.netty.channel.ChannelException: failed to open a new selector at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:127) at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:119) at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:97) at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:31) at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:77) ... 17 moreCaused by: java.io.IOException: Unable to establish loopback connection at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101) at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68) at java.security.AccessController.doPrivileged(Native Method) at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170) at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50) at java.nio.channels.Pipe.open(Pipe.java:155) at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127) at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44) at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:125) ... 21 moreCaused by: java.io.IOException: An existing connection was forcibly closed by the remote host at sun.nio.ch.SocketDispatcher.read0(Native Method) at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) at sun.nio.ch.IOUtil.read(IOUtil.java:197) at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:139) at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83) ... 29 more