UML tool for reverse engineering an eclipse project

Question

I am currently working on a project in Eclipse but the problem is that this project is very big (a lot of codes, classes, packages, etc) and undocumented. Since, the project is

Answer 1

I'd advise StarUML or StavrUML, the unofficial fork. It reverse engineers code compliant with Java versions before 1.6 or something. Yes, the project was abandoned years ago, but the UML editor remains incredibly strong and powerful.

However, I'd avoid using reverse engineering a UML diagram. You'll probably get an unreadable mess out if it. Just get stuck in and make it manually :)