Headless execution of test cases using selenium on Firefox with java

package com.sample;
	import org.openqa.selenium.By;
	import org.openqa.selenium.WebElement;
	import org.openqa.selenium.firefox.FirefoxBinary;
	import org.openqa.selenium.firefox.FirefoxDriver;
	import org.openqa.selenium.firefox.FirefoxOptions;
	import java.util.concurrent.TimeUnit;
	public class HeadlessFirefoxSeleniumSample {
	public static void main(String [] args) {
	FirefoxBinary firefoxBinary = new FirefoxBinary();
	firefoxBinary.addCommandLineOptions("--headless");
	FirefoxOptions firefoxOptions = new FirefoxOptions();
	firefoxOptions.setBinary(firefoxBinary);
	FirefoxDriver driver = new FirefoxDriver(firefoxOptions);
	driver.get("http://virtualbuffer.blogspot.com/");
	driver.findelement(By.linkText("Log4Net implementation in Visual Studio")).click();
	driver.quit();
	}
	}