HttpResponse { public List<String> getHeaders(CharSequence name) { return headers.getAll(name); } HttpResponse(HttpVersion httpVersion, HttpResponseStatus status,
						ResponseBodyConsumer responseBodyConsumer, HttpHeaders httpHeaders); String getHttpVersion(); int getStatusCode(); String getStatusReason(); T getBody(); String getHeader(CharSequence name); List<String> getHeaders(CharSequence name); List<Map.Entry<String, String>> getAllHeaders(); Headers headers();  }
@Test public void getHeadersShouldBeCaseInsensitive() throws Exception { DefaultHttpHeaders defaultHttpHeaders = new DefaultHttpHeaders(); defaultHttpHeaders.add("Accept", "**"); defaultHttpHeaders.add("accept", "**", header); } }