gets the date at which the access token expires . concode_field_sep Date ALREADY_EXPIRED_EXPIRATION_TIME concode_elem_sep Date expires concode_elem_sep String EXPIRES_IN_KEY concode_elem_sep Date lastRefresh concode_elem_sep AccessTokenSource DEFAULT_ACCESS_TOKEN_SOURCE concode_elem_sep Date DEFAULT_LAST_REFRESH_TIME concode_elem_sep String ACCESS_TOKEN_KEY concode_elem_sep long serialVersionUID concode_elem_sep AccessTokenSource source concode_elem_sep String token concode_elem_sep Date DEFAULT_EXPIRATION_TIME concode_elem_sep long serialVersionUID concode_elem_sep List<String> permissions concode_elem_sep Date MIN_DATE concode_elem_sep Date MAX_DATE concode_field_sep AccessToken createFromNativeLogin concode_elem_sep Object readResolve concode_elem_sep List<String> getPermissions concode_elem_sep String tokenToString concode_elem_sep Object writeReplace concode_elem_sep AccessToken createFromNativeLinkingIntent concode_elem_sep boolean isInvalid concode_elem_sep AccessToken createNew concode_elem_sep void readObject concode_elem_sep Date getBundleLongAsDate concode_elem_sep AccessToken createFromExistingAccessToken concode_elem_sep AccessToken createFromBundle concode_elem_sep void appendPermissions concode_elem_sep AccessTokenSource getSource concode_elem_sep AccessToken createFromTokenWithRefreshedPermissions concode_elem_sep String getToken concode_elem_sep Bundle toCacheBundle concode_elem_sep AccessToken createEmptyToken concode_elem_sep AccessToken createFromString concode_elem_sep Date getLastRefresh concode_elem_sep String toString concode_elem_sep AccessToken createFromCache concode_elem_sep AccessToken createFromRefresh concode_elem_sep AccessToken createFromWebBundle