Issue
This seemed to me like the easiest thing to find, a simple way to display my classes as UML in eclipse
But except this: http://java2uml.gforge.enseeiht.fr/ and this http://sourceforge.jp/projects/amateras/releases/ I haven't found any new, maintained and "good" implementation (with all due respect to the above two)
Anything else I've missed?
Solution
Did you consider
Creating UML 2 diagrams with Eclipse UML2 Tools - Tutorial ?
I had older references for such tools, but the new ones are build upon UML2 project (described in the tutorial). MDT-UML2Tools is in the making, Omondo is there, but not free.
Papyrus UML, for instance, is based on UML2 Tool.
There is a tool in the Marketplace that can do the above (UML Class, Package and Interaction). It's called ModelGoon. Last tried in July 2018.
The full list is available at Eclipse marketplace.
Answered By - VonC