TraceableHttpServerRequest implements HttpServerRequest { @Override public String getHttpHeaderValue(String headerName) { return req.getHeader(headerName); } TraceableHttpServerRequest(Request req); @Override String getHttpHeaderValue(String headerName); @Override URI getUri(); @Override String getHttpMethod();  }
@Test public void testGetHeader() { assertEquals(httpServerRequest.getHttpHeaderValue("testK"), "testV"); }