code: @NullSafe
    private static boolean isNotAssignableTo(Class<?> from, Class<?> to) {
      return to == null || (from != null && !to.isAssignableFrom(from));
    }
docs: Determines whether the {@link Class 'from' class type} is assignable to the {@link Class 'to' class type}.
  
  @param from {@link Class class type} being evaluated for assignment compatibility
  with the {@link Class 'to' class type}.
  @param to {@link Class class type} used to determine if the {@link Class 'from' class type}
  is assignment compatible.
  @return a boolean value indicating whether the {@link Class 'from' class type} is assignable to
  the {@link Class 'to' class type}.
  @see java.lang.Class#isAssignableFrom(Class)