Need UML reverse engineering tool for Java project

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I need to maintain some project in Java, but it is very big. I need some plugin for Eclipse or program alone which can generate UML from Java project. Is there something what can help me ?

Answer 1

I recommend Architexa for its great class digram generation. Instead of generating every classes in a huge class diagram, Arhitexa allows you to selectively display the relevant classes in the diagram.

Answer 2

Visual Paradigm for UML

Tools --> Instant Reverse --> Java --> Specify your sources and you are done.

This is a commercial application with lots of stuff, but for what you need to do, you are fine with the evaluation key.

EDIT: Also have a look at this video

Answer 3

This has been asked before.. please find it at

How to generate UML diagrams (especially sequence diagrams) from Java code

Answer 4

I recommend Enterprise Architect which supports full reverse and forward engineering including for Java. Automatic Documentation generation as Word, PDF or website.

Answer 5

Free Class Visualizer does exactly that - you load compiled Java code and, as a result, receive class diagrams allowing you to navigate through relations. It supports parametrized types, annotations and discovers all sort of outbound and inbound relations (including dependencies).

Answer 6

I suggest euml2 as an eclipse pluggin.
It has a free version and it is quite good!