Use ByteBuf#isReadable instead of readableBytes() > 0

Author: slandelle

client/src/main/java/org/asynchttpclient/netty/handler/AsyncHttpClientHandler.java

@@ -82,7 +82,7 @@ public void channelRead(final ChannelHandlerContext ctx, Object msg) throws Exce
  if (msg instanceof HttpContent) {
  ByteBuf content = ((HttpContent) msg).content();
  // Republish as a HttpResponseBodyPart
- if (content.readableBytes() > 0) {
+ if (content.isReadable()) {
  HttpResponseBodyPart part = config.getResponseBodyPartFactory().newResponseBodyPart(content, false);
  ctx.fireChannelRead(part);
  }

client/src/main/java/org/asynchttpclient/netty/handler/HttpHandler.java

@@ -110,7 +110,7 @@ private void handleChunk(HttpContent chunk,//
  }
 
  ByteBuf buf = chunk.content();
- if (!abort && !(handler instanceof StreamedAsyncHandler) && (buf.readableBytes() > 0 || last)) {
+ if (!abort && !(handler instanceof StreamedAsyncHandler) && (buf.isReadable() || last)) {
  HttpResponseBodyPart bodyPart = config.getResponseBodyPartFactory().newResponseBodyPart(buf, last);
  abort = handler.onBodyPartReceived(bodyPart) == State.ABORT;
  }