How to right click on a link and open the link in a new tab via Java using Selenium

Do I want to right click on " Forgotten Account"? The link is linked on the Facebook login page using Selenium, but it doesn't work.

I wanted to try send.Keys()after, contextClick()but the keypress happens on the page, not on the context menu.

package keyboardandmouseaction;

import java.awt.AWTException;
import java.util.Iterator;
import java.util.Set;

import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.interactions.Action;
import org.openqa.selenium.interactions.Actions;

public class testcase8 {
    public static void main(String[] args) throws AWTException, InterruptedException {

        System.out.println("Running keyboardandmouseactions > testcase8");

        System.setProperty("webdriver.chrome.driver", "D:\\chromedriver\\chromedriver.exe");
        WebDriver driver=new ChromeDriver();

        driver.manage().window().maximize();
        driver.get("https://www.facebook.com/");

        WebElement link=driver.findElement(By.xpath("//a[contains(text(),\"Forgotten account?\")]"));
        Actions a=new Actions(driver);

        // defective code start
        Action builder=a.moveToElement(link).contextClick(link).sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.ENTER).build();
        // defective code end
        builder.perform();



        Set<String> windowid =driver.getWindowHandles();
        Iterator<String> itr =windowid.iterator();

        String mainwindow=itr.next();
        String childwindow=itr.next();
        System.out.println("The mainwindow id is "+mainwindow);
        System.out.println("The childwindow id is "+childwindow);
        driver.switchTo().window(childwindow);
        driver.get("http://demo.automationtesting.in/Alerts.html");
        driver.close();

}
}