Reverse engineering tool

Download Green UML

http://www.cse.buffalo.edu/faculty/alphonce/green

To install or update green in Eclipse, go to Help->Install New Software... Type in (or copy/paste) the above site URL and click Add. After the update site has been added, you can install from that same dialog.

Green UML tutorial
http://green.sourceforge.net/help3.0.0/green_index_frameset.html
more
http://www.clear.rice.edu/comp310/Eclipse/GreenUML/

Enjoy 'the whole picture' of your project!!!