Override host header with HTMLUnit

gistfile1.scala

import org.openqa.selenium._
import org.openqa.selenium.htmlunit._
import org.scalatest.matchers.ShouldMatchers
import org.scalatest.{ GivenWhenThen, FeatureSpec }
import test.`package`._

// instance of htmlunit with request header setting ability
class FixedHtmlUnitDriver extends HtmlUnitDriver {
  def setHeader(name: String, value: String) = { 
    getWebClient().addRequestHeader(name, value)
  }
}

// 
class HostOverrideTest extends FeatureSpec {
  val driver = new FixedHtmlUnitDriver
  driver.setHeader("X-Edition-Override", "usa")
  driver.setHeader("Host", "example.com")
  driver.get("http://localhost:4567/hello")
  println(driver.getTitle())
  println(driver.getPageSource())
}

server.rb

require 'rubygems'
require 'sinatra'

get "/hello" do ||
    request.env["HTTP_HOST"]
end

Hi, please can you help me in doing this in java, it does not work.
On doing, it throws the following exception:

Thread-15] c.g.h.j.DefaultJavaScriptErrorListener : Error loading JavaScript from [https://code.jquery.com/jquery-latest.min.js]

Basically, it does not download any resource such as javascript.