You can change collection types of Java™ fields in class diagrams.
You can change the collection type of a Java field only when its declared type is
one of the default collection types set in the Java to UML Mapping preferences.
To change a Java field collection type:
- In the diagram editor, right-click an attribute of a Java class
or interface; then click .
- In the Select Type window, click a collection
type and click OK.