Vector<Integer> Vector<Vector<b>>


Vector<z> Vector<? super B<a>> 

class A { }
class B<a> extends A { }
class D<a,b> { }
class E<a,b> extends D<B<a>,b> { }

class Number {}
class Integer extends Number {}

class AbstractList<a> extends List<a> {}
class List<a> {}
class Vector<a> extends List<a> {}
class Stack<a> extends Vector<a> {}
class Test extends Vector<Integer> {}

/*D<? extends B<? extends Integer>, ? extends A> Test<? extends B<a>,A>*/
/*D<B<? super Integer>, D<a, b>> D<? super B<b>, ? super E<? extends Number, b>>*/
/*Stack<a> Vector<? extends Number> AbstractList<Integer> List<a>*/