Account acct = prov.getAccountById(accountId);
Account acct = prov.get(AccountBy.ID, accountId);
    protected void proxyServletRequest(HttpServletRequest req, HttpServletResponse resp, String accountId)    throws IOException, ServletException {		try {            Provisioning prov = Provisioning.getInstance();            Account acct = prov.getAccountById(accountId);    		if (acct == null) {                resp.sendError(HttpServletResponse.SC_BAD_REQUEST, "no such user");                return;            }            proxyServletRequest(req, resp, prov.getServer(acct), null);		} catch (ServiceException e) {			throw new ServletException(e);		}    }