Create HtmlUnitDriver for Google Web Toolkit

gistfile1.java

new HtmlUnitDriver(true) {
    {
        getWebClient().setAjaxController(new NicelyResynchronizingAjaxController());
    }

    @Override
    public void get(String url) {
        super.get(url);
        getWebClient().waitForBackgroundJavaScriptStartingBefore(10000);
    }
};