code: @Nonnull
    public static String getEnumID (@Nonnull final Enum <?> aEnum)
    {
      // No explicit null check, because this method is used heavily in
      // locale resolving, so we want to spare some CPU cycles :)
      return aEnum.getClass ().getName () + '.' + aEnum.name ();
    }
docs: Get the unique name of the passed enum entry.
  
  @param aEnum
  The enum to use. May not be <code>null</code>.
  @return The unique ID as a combination of the class name and the enum entry
  name. Never <code>null</code>.