public Type[] getLowerBounds()
Returns an array of {@code Type} objects representing the
lower bound(s) of this type variable. Note that if no lower bound is
explicitly declared, the lower bound is the type of {@code null}.
In this case, a zero length array is returned.

For each lower bound B :

if B is a parameterized type or a type variable, it is created,
(see ParameterizedType 
for the details of the creation process for parameterized types).
Otherwise, B is resolved.

 public Type[] getUpperBounds()
Returns an array of {@code Type} objects representing the upper
bound(s) of this type variable. Note that if no upper bound is
explicitly declared, the upper bound is {@code Object}.

For each upper bound B :

if B is a parameterized type or a type variable, it is created,
(see ParameterizedType 
for the details of the creation process for parameterized types).
Otherwise, B is resolved.