HttpParams params = new BasicHttpParams();
SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 128, params);
HttpRequestFactory requestFactory = new DefaultHttpRequestFactory();
HttpRequestParser requestParser = new HttpRequestParser(inbuf, null, requestFactory, params);
ReadableByteChannel channel = newChannel("GET /whatever HTTP/1.0");
requestParser.fillBuffer(channel);
requestParser.fillBuffer(channel);
HttpRequest request = (HttpRequest) requestParser.parse();
assertNotNull(request);
assertEquals(HttpVersion.HTTP_1_0, request.getRequestLine().getProtocolVersion());