try (InputStream in = content.open(InputStream.class)) {
exchange.sendResponseHeaders(HttpResponseStatus.OK.getCode(), size.orElse(0l));
StreamUtils.copy(in, exchange.getResponseBody());
try (InputStream in = content.open(InputStream.class)) {
exchange.sendResponseHeaders(HttpResponseStatus.OK.getCode(), size.orElse(0l));
StreamUtils.copy(in, exchange.getResponseBody());