问无法通过登录页面

EN

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    //Create driver, javascript enabled
    WebDriver driver = new HtmlUnitDriver(true);
    driver.get("https://epicmafia.com/home");
    //Get parent of login form
    WebElement parent = driver.findElement(By.id("login_form"));
    //Get both inputs of the login form
    //First is name
    //Second is password
    ArrayList<WebElement> children = new ArrayList<WebElement>();
    for(WebElement input : parent.findElements(By.cssSelector("input")))
        children.add(input);
    //Fill in name 
    children.get(0).sendKeys("USERNAME");
    //Fill in password 
    children.get(1).sendKeys("PASSWORD");
    //Wait for good measure
    driver.manage().timeouts().implicitlyWait(4, TimeUnit.SECONDS);
    //Submit credentials
    children.get(1).submit();
    //Double check inputs are desired values
    System.out.println("The username is: " + children.get(0).getAttribute("value"));
    System.out.println("The password is: " + children.get(1).getAttribute("value"));
    //Check if pass login page
    System.out.println("End URL is: " + driver.getCurrentUrl());
    driver.quit();      
}