I have been running this scenario in my head for a while.  In the
surface it seems fine, but I keep thinking that somehow it will cause
problems.

class A {
}

class B extends A {
}

class C extends A {
   B myB;
}

Class B is a A

Class C is also a A but also has a B which is in turn a A.

Is there anything wrong with having a variable in a class of a type
that inherits from the same parent that the class itself inherits from?

Thanks.