Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Google Groups by onroad, 1 year ago
Channel closed before HTTP/2 preface completed.
via GitHub by neyron91
, 1 year ago
Channel closed before HTTP/2 preface completed.
via Google Groups by Saith, 8 months ago
Channel closed before HTTP/2 preface completed.
via Google Groups by Petar Petrov, 8 months ago
Channel closed before HTTP/2 preface completed.
java.lang.IllegalStateException: Channel closed before HTTP/2 preface 
 completed.	at com.relayrides.pushy.apns.ApnsClient$3.operationComplete(ApnsClient.java:454)	at com.relayrides.pushy.apns.ApnsClient$3.operationComplete(ApnsClient.java:448)	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:567)	at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:406)	at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:82)	at io.netty.channel.AbstractChannel$CloseFuture.setClosed(AbstractChannel.java:1021)	at io.netty.channel.AbstractChannel$AbstractUnsafe.doClose0(AbstractChannel.java:665)	at io.netty.channel.AbstractChannel$AbstractUnsafe.close(AbstractChannel.java:643)	at io.netty.channel.AbstractChannel$AbstractUnsafe.close(AbstractChannel.java:587)	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.closeOnRead(AbstractNioByteChannel.java:70)	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:133)	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:510)	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:467)	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:381)	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:353)	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742)	at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)	at java.lang.Thread.run(Thread.java:745)