code: @Test public void testResumeWritesChunked() throws IOException {
    DefaultServer.setRootHandler(new HttpHandler(){
      @Override public void handleRequest(    final HttpServerExchange exchange) throws Exception {
        exchange.addResponseWrapper(new ReturnZeroWrapper());
        exchange.getResponseSender().send(HELLO_WORLD);
      }
    }
  );
    TestHttpClient client=new TestHttpClient();
    try {
      HttpGet get=new HttpGet(DefaultServer.getDefaultServerURL() + "/path");
      HttpResponse result=client.execute(get);
      Assert.assertEquals(200,result.getStatusLine().getStatusCode());
      Assert.assertEquals(HELLO_WORLD,HttpClientUtils.readResponse(result));
      result=client.execute(get);
      Assert.assertEquals(200,result.getStatusLine().getStatusCode());
      Assert.assertEquals(HELLO_WORLD,HttpClientUtils.readResponse(result));
      result=client.execute(get);
      Assert.assertEquals(200,result.getStatusLine().getStatusCode());
      Assert.assertEquals(HELLO_WORLD,HttpClientUtils.readResponse(result));
    }
    finally {
      client.getConnectionManager().shutdown();
    }
  }
  