question: void refreshCustomMasterList ( ) { if ( customMasterCountries == null || customMasterCountries . length ( ) == 0 ) { customMasterCountriesList = null ; } else { List < Country > localCountryList = new ArrayList < > ( ) ; for ( String nameCode : customMasterCountries . split ( "," ) ) { Country country = Country . getCountryForNameCodeFromLibraryMasterList ( customLanguage , nameCode ) ; if ( country != null ) { if ( ! isAlreadyInList ( country , localCountryList ) ) { localCountryList . add ( country ) ; } } } if ( localCountryList . size ( ) == 0 ) { customMasterCountriesList = null ; } else { customMasterCountriesList = localCountryList ; } } if ( customMasterCountriesList != null ) { for ( Country country : customMasterCountriesList ) { country . log ( ) ; } } else { } }
target:  this will load preferredCountries based on countryPreference