code: public static <T> void isNull(final T object, final String message, final Object... values) {
          INSTANCE.isNull(object, message, values);
      }
docs: <p>Validate that the specified argument is {@code null}; otherwise throwing an exception with the specified message.
  <pre>Validate.isNull(myObject, "The object must be null");</pre>
  
  @param <T>
  the object type
  @param object
  the object to check
  @param message
  the {@link String#format(String, Object...)} exception message if invalid, not null
  @param values
  the optional values for the formatted exception message
  
  @throws IllegalArgumentValidationException
  if the object is not {@code null}
  @see #notNull(Object)