import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;

import org.openqa.selenium.By;
import org.openqa.selenium.Cookie;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class StoreCookieInfo {

public static void main(String[] args) {
System.setProperty("webdriver.chrome.driver","D:\Java Programs and files\chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("http://www.facebook.com");
driver.findElement(By.name("email")).sendKeys("Your username");
driver.findElement(By.name("pass")).sendKeys("Your password");
driver.findElement(By.name("persistent")).click();
driver.findElement(By.name("pass")).submit();

File f = new File("browser.data");
try{
     f.delete();
     f.createNewFile();
     FileWriter fos = new FileWriter(f);
     BufferedWriter bos = new BufferedWriter(fos);

     for(Cookie ck : driver.manage().getCookies()) {
            bos.write((ck.getName()+";"+ck.getValue()+";"+ck.getDomain()
                    +";"+ck.getPath()+";"+ck.getExpiry()+";"+ck.isSecure()));
            bos.newLine();
     }
     bos.flush();
     bos.close();
     fos.close();
 }catch(Exception ex){
     ex.printStackTrace();
 }

  }
 }

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.Date;
import java.util.StringTokenizer;

import org.openqa.selenium.Cookie;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class LoadCookieInfo {

@SuppressWarnings("deprecation")
public static void main(String[] args){
    System.setProperty("webdriver.chrome.driver","D:\Java Programs and files\chromedriver.exe");
    WebDriver driver = new ChromeDriver();
    //WebDriver driver = new FirefoxDriver();
    driver.get("http://www.facebook.com");
    try{
         File f2 = new File("browser.data");
         FileReader fr = new FileReader(f2);
         BufferedReader br = new BufferedReader(fr);
         String line;
         while((line=br.readLine())!=null){
             StringTokenizer str = new StringTokenizer(line,";");
             while(str.hasMoreTokens()){
                 String name = str.nextToken();
                 String value = str.nextToken();
                 String domain = str.nextToken();
                 String path = str.nextToken();
                 System.out.println("1");
                 Date expiry = null;
                 String dt;
                 if(!(dt=str.nextToken()).equals("null")){
                     expiry = new Date(dt);
                 }
                 boolean isSecure = new Boolean(str.nextToken()).booleanValue();
                 Cookie ck = new Cookie(name,value,domain,path,expiry,isSecure);
                 driver.manage().addCookie(ck);
                 System.out.println(name+value);
             }
         }
    }catch(Exception ex){
         ex.printStackTrace();
    }
    driver.get("http://www.facebook.com");
 }
}

java.lang.IllegalArgumentException
at java.util.Date.parse(Unknown Source)
at java.util.Date.<init>(Unknown Source)
at com.Selenium_Practice.LoadCookieInfo.main(LoadCookieInfo.java:39)