title: Add Tomcat 9 to eclipse
body: <p>I have downloaded and installed tomcat 9 to my machine, but on Eclipse > Window > Preferences > Server > Runtime Environment, after clicking on Add, I see only Tomcat 7 and Tomcat 8, but not Tomcat 9.</p>
  
  <p>What I have done:
  1) installed tomcat 9 to local server;
  2) updated eclipse to Mars (latest as of 2015-11-25);
  3) installed eclipse "JST Server Adapters" and "JST Server Adapters Extensions"</p>
  
  <p>Note:
  My purpose of using tomcat 9 is it seems to be the only version that explicitly support java 8 and later, and my web app is using java 8. (<a href="http://tomcat.apache.org/whichversion.html" rel="noreferrer">http://tomcat.apache.org/whichversion.html</a>)
  I also have tomcat 7 exist in project but I also want to keep it in the machine, not to delete it.</p>
  
  <p>Please see screenshot.</p>
  
  <p><a href="https://i.stack.imgur.com/24kQZ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/24kQZ.png" alt="enter image description here"></a></p>
  
  <p>Please let me know about any config that I missed!</p>