}
private ImapMessage unsupportedCharset(final String tag, final ImapCommand command) {
final StatusResponseFactory factory = getStatusResponseFactory();
final ResponseCode badCharset = StatusResponse.ResponseCode.badCharset(CharsetUtil.getAvailableCharsetNames());
final StatusResponse result = factory.taggedNo(tag, command, HumanReadableText.BAD_CHARSET, badCharset);
return result;
}
/**
* Parse the {@link SearchResultOption}'s which are used for ESEARCH