Do you know alternatives in Ant to generate project documentation?

I'm wondering are there more current and active alternative tools to the Apache Forrest product for project documentation that developers are using?. It seems to be stuck in v0.8 release since 2007.

I'm thinking about using the maven site via Ant to generate a HTML report with the various javadoc, pmd and findbug reports for my project. Just wondering what other developers are using out there.

From stackoverflow

• maven can grenerate copious amounts of project documentation.

  I'd point you to the maven documentation for this, but the maven documentation is, ironically, rubbish.