What does it mean by putting dots into a struts forward tag?

As the example below, I came across this one when reading the source code of JAVA D.I.Y Forum.

<forward name="feedback" path=".page.index.feedback"/>
<forward name="group" path=".page.index.group"/>

From stackoverflow

• Unfortunately I'm finding it hard to see the source for JAVA D.I.Y Forum (it seems to only be available in a RAR file, and I'm not installing something just to look at it), but I would guess that the project is using tiles. Somewhere there should be a tiles configuration file which tells the application how to build the view.

  Winston Chen : yeah.. it turns out to be tiles. Thank you man!!