add features in demo examples

I require following features in my requirement/code with below descriptions: 1. Developer will first implement session management in a simple JSP Servlet web application project depicting login feature. On successful login with hardcoded uid and password, there will be a welcome page with a logout button and a 2nd welcome button. On clicking logout, user will be redirected to logoutSuccess page and on clicking welcome2 button, user will be redirected to welcome 2 - 2nd page. On clicking back button, user should be redirected to 1st page, i.e. welcome page. However, on back click from welcome page to the previous page, i.e. index page/login page, user should be re-directed to welcome page itself until logout link (on welcome page and welcome2 page) is clicked. Only on clicking logout should the user be able to redirect to index/login page. Navigation to index/login page from history/cache should be blocked till logged out. This feature needs to be implemented first in JSP servlet , in the following program: [login to view URL] Then this feature needs to be implemented in following spring program: [login to view URL] (an extra logout page and welcome 2 is included in the version i will share) A social media login with facebook and gmail should be added at login page in both the examples. For both the requirements i will share zip folder. Developer will edit the program to match requirement and share back the zip folder containing the modified code. I will convert it to WAR file myself and deploy.