While working with tomcat, you might come across this glitch. Here is how to get rid of it easily.
1. Go to server tab in your eclipse. If you cant see it you can have it through window->show view->servers
2. double click on the tomcat server and you will be directed to page for tomcat configuration.
3. On the page you will see list of ports that the current server is using.
4. Change the HTTP/1.1 from 80 – or whatever it is complaining to new one like 9181.
5. what… you’re done…