It's in the com.sun.net.httpserver package. It's a part of Java SE 6.
This is only one of many options.
You can google for this or you can start with this [1].
2011/9/9 <lehphyro_at_gmail.com>:
> Hi,
>
> I'm curious about the light weight HTTP server mentioned in the user
> guide[1]. I couldn't find any documentation about it. How do I use it?
>
> Thanks
>
> [1]
> http://jersey.java.net/nonav/documentation/latest/chapter_deps.html#d4e > 1734
>