@Override
        public ContentChannel handleRequest(Request request, ResponseHandler handler) {
            Map<String, List<String>> parameters = new TreeMap<>(((HttpRequest)request).parameters());
            ContentChannel responseContentChannel = ResponseDispatch.newInstance(Response.Status.OK).connect(handler);
            responseContentChannel.write(ByteBuffer.wrap(parameters.toString().getBytes(UTF_8)),
                                         NULL_COMPLETION_HANDLER);

            // Have the request content written back to the response.
            return responseContentChannel;
        }
@author Oyvind Bakksjo
@author Simon Thoresen Hult
@author bjorncs
container-core/src/test/java/com/yahoo/jdisc/http/server/jetty/HttpServerTest.java