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 Saith, 11 months ago
Channel closed before HTTP/2 preface completed.
via Google Groups by Petar Petrov, 11 months 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 onroad, 1 year 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:467)	at com.relayrides.pushy.apns.ApnsClient$3.operationComplete(ApnsClient.java:459)	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:507)	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:481)	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:420)	at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104)	at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:82)	at io.netty.channel.AbstractChannel$CloseFuture.setClosed(AbstractChannel.java:1058)	at io.netty.channel.AbstractChannel$AbstractUnsafe.doClose0(AbstractChannel.java:686)	at io.netty.channel.AbstractChannel$AbstractUnsafe.close(AbstractChannel.java:664)	at io.netty.channel.AbstractChannel$AbstractUnsafe.close(AbstractChannel.java:607)	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.closeOnRead(AbstractNioByteChannel.java:85)	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:142)	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:624)	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:559)	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:476)	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:438)	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)	at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)	at java.lang.Thread.run(Thread.java:745)