Resolution:
Correct the code to specify a valid parameter with the method.
Example:
The following example shows invalid use of the U parameter with in the method:
class-id GenericClass using T.
method-id M2 using U (parm as U).
constraints.
constrain T is reference type.
end method.
end class.
class-id A.
end class.
class-id B.
end class.