Logging cleanup

src/main/java/org/littleshoot/proxy/impl/ClientToProxyConnection.java

@@ -1,6 +1,5 @@
 package org.littleshoot.proxy.impl;
 
-import org.littleshoot.proxy.ProxyAuthenticator;
 import static org.littleshoot.proxy.impl.ConnectionState.*;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
@@ -43,6 +42,7 @@
 import org.littleshoot.proxy.FlowContext;
 import org.littleshoot.proxy.FullFlowContext;
 import org.littleshoot.proxy.HttpFilters;
+import org.littleshoot.proxy.ProxyAuthenticator;
 import org.littleshoot.proxy.SslEngineSource;
 
 /**
@@ -587,7 +587,9 @@ synchronized protected void serverBecameWriteable(
     @Override
     protected void exceptionCaught(Throwable cause) {
         String message = "Caught an exception on ClientToProxyConnection";
-        if (cause instanceof ClosedChannelException) {
+        boolean shouldWarn = cause instanceof ClosedChannelException ||
+                cause.getMessage().contains("Connection reset by peer"); 
+        if (shouldWarn) {
             LOG.warn(message, cause);
         } else {
             LOG.error(message, cause);

src/main/java/org/littleshoot/proxy/impl/ProxyToServerConnection.java

@@ -426,7 +426,7 @@ private void rememberCurrentResponse(HttpResponse response) {
         // We need to make a copy here because the response will be
         // modified in various ways before we need to do things like
         // analyze response headers for whether or not to close the
-        // connection (which may not happen for awhile for large, chunked
+        // connection (which may not happen for a while for large, chunked
         // responses, for example).
         currentHttpResponse = ProxyUtils.copyMutableResponseFields(response);
     }