Logged In: YES
Originator: YES

I should have added that the "enumeration" shown in the Ecore model after conversion by argo2ecore is a [java.lang.Object] - presumably that's why it's not serializable. Also, I'm using ArgoUML 0.24 and wondering whether this behaves differently to version 0.22 when the green "new enumeration" icon is clicked.

The enumeration included in the test.zargo model at http://argo2ecore.sourceforge.net/ appears to work fine and is correctly mapped into an Ecore enumeration (though there seem to be a few other errors with test.zargo). However ArgoUML 0.24 shows it as a normal class with an <<enumeration>> annotation.