This critic is discussed under an earlier design issues category (see Section 15.4.2, “ Revise Attribute Names to Avoid Conflict ” ).

Suggestion that a class inherits from itself, through a chain of generalizations, which is not permitted.

	Caution
	This critic is marked inactive by default in the current release of ArgoUML (the only one so marked). It will not trigger unless made active.

This critic is discussed under an earlier design issues category (see Section 15.13.2, “ Class Must be Abstract ” ).

Suggestion that a class that is final has specializations, which is not permitted in UML.

Suggestion that there is a generalization between model elements of different UML metaclasses, which is not permitted.

	Caution
	It is not clear that such a generalization can be created within ArgoUML. It probably indicates that the diagram was created by loading a corrupt project, with an XMI file describing such a generalization, possibly created by a tool other than ArgoUML.

Suggestion that the specified class has a realization relationship both directly and indirectly to the same interface (by realization from two interfaces, one of which is a generalization of the other for example). Good design deprecates such duplication.

Suggestion that a class is abstract with no concrete subclasses, and so can never be realized.

Suggestion that the interface referred to has no influence on the running system, since it is never implemented by a class.

This critic is discussed under an earlier design issues category (see Section 15.14.1, “ Change Multiple Inheritance to interfaces ” ).

This critic is discussed under an earlier design issues category (see Section 15.7.14, “ Make Edge More Visible ” ).