I imagine most developers, like myself, starting out with JDEE are beginning with source code that is already written as opposed to a new empty project. What I'm asking for is a simple explanation of how to get JDEE set up for an existing Java project.
The user's guide on the JDEE website explains this to some degree, but is organized more as a highly detailed tutorial and isn't always clear on which settings are required and which are optional. Also, the user's guide uses custom variables as opposed to settings that can easily be pasted into and modified in a .emacs file. I'm looking for something that can easily be copied and pasted into a .emacs file (and any other files, such as project files) and modified to suit the file paths a developer already has.
The setup should allow the use of all of the features available in JDEE that one typically expects in an IDE such as Eclipse. Please assume that the developer reading your answer has JDEE installed in Emacs, but has not gone any further than that.
I've been struggling to get this set up at home and look forward to the answers I receive so I can learn more about Java and Emacs.