Testing Angularjs Application with Selenium

I am testing an angular js application

Link Angular js App

when i click on the UI Kit link on the web application i am getting the following error -

at demoaj.Ajapp.main(Ajapp.java:16) Caused by: org.openqa.selenium.NoSuchElementException: Unable to locate element: {"method":"xpath","selector":"html/body/div1/div1/aside/div/div/ul/li[2]/a"} Command duration or timeout: 51 milliseconds For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html

I am new to this i did some research on this AngularJS

java Code

    package demoaj;

    import org.openqa.selenium.By;
    import org.openqa.selenium.WebDriver;
    import org.openqa.selenium.firefox.FirefoxDriver;
    import org.openqa.selenium.support.ui.ExpectedConditions;
    import org.openqa.selenium.support.ui.WebDriverWait;

    public class Ajapp {

        public static void main(String[] args) throws InterruptedException {
        WebDriver d=new FirefoxDriver();
        d.manage().window().maximize();
        d.get("http://iarouse.com/demo/index.html?product=square");
        WebDriverWait wait = new WebDriverWait(d, 20);
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("html/body/div[1]/div[1]/aside/div/div/ul/li[2]/a"))).click();
        //d.findElement(By.xpath("html/body/div[1]/div[1]/aside/div/div/ul/li[2]/a")).click();

        }

}

I think it is not able to find the element because in angularjs the dom is not rendering. when i check the page source it does not display anything all things are hidden after doing some research on angularjs testing i have few question please help,

for Angular App testing.

1. i think i have to use protractor? i guess
2. if i use protractor i have to write code in javascript or jquery?
3. if i use protractor can i write my code in java using eclipse ide or intellij?

Please Help,

Thanks in advance.