Element response = lc.createElement(MailService.GET_CONV_RESPONSE);
Element response = zsc.createElement(MailService.GET_CONV_RESPONSE);
    public Element handle(Element request, Map<String, Object> context) throws ServiceException {        ZimbraSoapContext lc = getZimbraSoapContext(context);        Mailbox mbox = getRequestedMailbox(lc);        Mailbox.OperationContext octxt = lc.getOperationContext();        Session session = getSession(context);                Element econv = request.getElement(MailService.E_CONV);        int id = (int) econv.getAttributeLong(MailService.A_ID);        GetConversationByIdOperation op = new GetConversationByIdOperation(session, octxt, mbox, Requester.SOAP, id);        op.schedule();        Conversation conv = op.getResult();        Element response = lc.createElement(MailService.GET_CONV_RESPONSE);        if (conv != null)        	ToXML.encodeConversation(response, lc, conv);        else            throw MailServiceException.NO_SUCH_CONV(id);        return response;    }