What does 'Connection reset by peer' means on JBoss EAP?

Issue

• We noticed a different message in server.log and we would like to know what it is.

Caused by: java.io.IOException: Connection reset by peer

• Seeing the below message at the master server of the JMS cluster.

2019-02-25 08:32:01,397 WARNING [io.netty.channel.DefaultChannelPipeline] (default I/O-6) An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.: java.io.IOException: Connection reset by peer
        at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
        at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
        at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
        at sun.nio.ch.IOUtil.read(IOUtil.java:192)
        at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
        at org.xnio.nio.NioSocketConduit.read(NioSocketConduit.java:289)
        at org.xnio.conduits.ConduitStreamSourceChannel.read(ConduitStreamSourceChannel.java:127)
        at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288)
        at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1100)
        at org.xnio.netty.transport.AbstractXnioSocketChannel$ReadListener.handleEvent(AbstractXnioSocketChannel.java:435)
        at org.xnio.netty.transport.AbstractXnioSocketChannel$ReadListener.handleEvent(AbstractXnioSocketChannel.java:379)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
        at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
        at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
        at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)