Is there a (free) UML class diagram editor that supports association end ownership dots?

Question

According to the UML 2.5 specification, an association end can be "owned" by the class at the other end (this means that the owned association end corresponds to a reference property of the class at the other end). The fact that an association end is owned should not be expressed by a navigability arrow (which is common practice, however). Rather, it has to be expressed with the help of a small filled circle (also called a "dot") at the end of the association line, as the following diagram illustrates.

Is there a free class diagram editor that supports these ownership dots? For instance, Visio 2010 does not support it.

Answer 1

Yes, I have checked the Papyrus diagram editor. It has properties for association and you can choose, if an end belongs to association or classifier. And shows the dot or both of them.

You need to install Eclipse for it. You can choose Eclipse for modelling, or take ANY Eclipse and later go to Help>Install New Software, input 'Kepler - http://download.eclipse.org/releases/kepler' to Work In, type 'papyrus' into filter text, choose the Papyrus and later agree with everything. It is not Release version, but it is a good Beta. Papyrus is NOT worse than the most renown proprietary tools, as EA or VP and is far better than IBM Modeller.