Restriction: When setting up inherited CMP entity beans, children beans
cannot have CMP attributes with the same name as those defined anywhere in
their ancestry chains. For example, Parent is a CMP entity bean that contains
an attribute id of type int. If you create a CMP bean called Child using the
wizard and specified Parent as its super type and attempted to add an attribute
id of type int, the id attribute would not be added because it would inherit
Parent's id attribute. If Child2, another unrelated CMP Bean, contained an
attribute id of type java.lang.String and had its inheritance structure changed
through the Deployment Descriptor Editor to inherit from Parent, Child2's
id attribute of type java.lang.String would be removed because it would inherit
Parent's id attribute and there may be validation errors due to type conflicts.