Provide you with more insight into the design within your code.
Editor: AgileJ StructureViews Code Visualizer for Eclipse is:

1 Specialized for Reverse Engineered Diagrams - more akin to an extension to the Eclipse Java browsing perspective than a drawing tool.
2 Dedicated to Java - exceptions, inner classes and Javadoc all influence the diagrams.
3 Focused on Class Diagrams - because they can be made self-populating and self-updating, playing a long-term role in an Agile/XP project.
4 Tightly Integrated into Eclipse - the diagram nomenclature follows that of Eclipse, resulting in the lowest switching overhead Between looking at diagrams and looking at Eclipse.
5 Filtered by Customized Rules - diagrams are tuned to highlight one Aspect, dimension, concern or technology at a time.

Features
- Instant reverse engineering
- Comprehensive filtering
- Refactoring friendly
- Eclipse 3.3.2 compatible plugin
- Self updating diagrams
- Exports JPEG, SVG, GIF or PNG you can free download AgileJ StructureViews 1.5.3 now.