code: protected void handleServerHeaderDecodeSizeError(ChannelHandlerContext ctx, Http2Stream stream) {
          encoder().writeHeaders(ctx, stream.id(), HEADERS_TOO_LARGE_HEADERS, 0, true, ctx.newPromise());
      }
docs: Notifies client that this server has received headers that are larger than what it is
  willing to accept. Override to change behavior.
  
  @param ctx the channel context
  @param stream the Http2Stream on which the header was received