Need dependency tree for a Java source file

Question

I need to extract some specific functionality from a large legacy Java codebase, in order to turn it into a standlone command-line application. This code is not documented at all and is not very modular or even clear. So I'm having a really hard time figuring out what I need to keep.

Basically what I need is a a dependency tree, listing all the direct or indirect dependencies of this one *.java file. (Preferably I would like this listing to be in a format that I can save to a text file, as opposed to some un-copy-able whiz-bang GUI tree with a bazillion collapsed nodes...)

I'm using Eclipse for this detective work. I am an Eclipse beginner, but I figure that there may be Eclipse tricks/tools to perform this kind of operation with a bit less effort.

Any suggestions (using Eclipse or otherwise) would be appreciated.

Answer 1

There's a free version of eUML2: http://www.soyatec.com/euml2/features/eDepend/, one of its features is exactly what you need. Also another one, i'm not sure if eUML can export any text files.

Here is a kind of detailed guide installing eUML2.

Answer 2

I've used Dependency Finder for this kind of work recently and it works well.