check whether the language is loaded in i18n . concode_field_sep String baseDir concode_elem_sep Map messagesMap concode_elem_sep Properties localeNames concode_elem_sep I18n classInstance concode_elem_sep String CANNOT_DELETE_BANNER concode_elem_sep List watching concode_elem_sep String CANNOT_DELETE_GROUP concode_elem_sep String CANNOT_DELETE_CATEGORY concode_elem_sep String defaultName concode_elem_sep Logger logger concode_field_sep boolean languageExists concode_elem_sep void load concode_elem_sep void load concode_elem_sep void load concode_elem_sep void load concode_elem_sep void watchForChanges concode_elem_sep String getUserLanguage concode_elem_sep void changeBoardDefault concode_elem_sep void loadLocales concode_elem_sep void reset concode_elem_sep String getMessage concode_elem_sep String getMessage concode_elem_sep String getMessage concode_elem_sep String getMessage concode_elem_sep String getMessage concode_elem_sep String getMessage concode_elem_sep I18n getInstance
boolean function ( String language ) { return messagesMap . containsKey ( language ) ; }