code: public static <Type> NegateValidator<Type> create(@NonNull final CharSequence errorMessage,
                                                        @NonNull final Validator<Type> validator) {
          return new NegateValidator<>(errorMessage, validator);
      }
docs: Creates and returns a validator, which allows to negate the result of an other validator.
  
  @param <Type>
  The type of the values, which should be validated
  @param errorMessage
  The error message, which should be shown, if the validation fails, as an instance of
  the type {@link CharSequence}. The error message may not be null
  @param validator
  The validator, whose result should be negated, as an instance of the type {@link
  Validator}. The validator may not be null
  @return The validator, which has been created, as an instance of the class {@link
  NegateValidator}