2. Undertow?
http://undertow.io
https://github.com/undertow-io
Undertow has a composition based architecture
that allows you to build a web server by
combining small single purpose handlers.
- Full Java EE servlet 3.1 container
- Low level non-blocking handler
3. Why Undertow
Lightweight
HTTP Upgrade Support (101-Switching Protocols)
Web Socket Support
Servlet 3.1
Embeddable
Flexible