I\'d like to try UML2 Tools for Eclipse, as shown in this tutorial.
I currently have Eclipse 3.6 Helios for Java EE developers.
In my Eclipse Marketplace I switc
UML2 Tools has no release that works with Eclipse 3.6 and newer. You could use Papyrus instead.
If you really need UML2 Tools 0.9.0 to work in Eclipse Helios 3.6, there is a workaround you need to do before installing UML2 Tools as explained in this answer.