private static int ftypeKind(Class<?> ftype) {
if (ftype.isPrimitive()) return Wrapper.forPrimitiveType(ftype).ordinal();
else if (VerifyType.isNullReferenceConversion(Object.class, ftype)) return FT_UNCHECKED_REF;
else return FT_CHECKED_REF;
}
@Override
Object checkCast(Object obj) {
return fieldType.cast(obj);
}