code: public static boolean isAddOnFileName(String fileName) {
  		if (fileName == null) {
  			return false;
  		}
  		return fileName.toLowerCase(Locale.ROOT).endsWith(FILE_EXTENSION);
  	}
docs: Tells whether or not the given file name matches the name of a ZAP add-on.
  <p>
  The file name must have as file extension {@link #FILE_EXTENSION}.
  
  @param fileName the name of the file to check
  @return {@code true} if the given file name is the name of an add-on, {@code false} otherwise.
  @since 2.6.0