Phase 2 Deadline -- Thurs. Nov. 5 @ 6 PM.

Servlets
A servlet is a server side application that handles requests from clients. 
- Most servlets are threaded, meaning clients can be handled concurrently.
   * Most of the time a servlet creates a thread to service a client, provides the service, and the thread dies.
- Servlets have state, i.e. they can hold values indefinitely while they are deployed.
- Servlets are loaded when first accessed, not when they are deployed.

- web.xml directs how a URL is used to access the actual servlet class
  * the URL need not actually show the path. It can when the servlet is in the classes directory.
  -> You can't have a servlet right in the classes directory in GWT
  -> GWT packages its stuff and a servlet below the classes directory has to be part of a package.