return app.execute (req);
try { return app.execute (req); } catch (Exception x) { invalidateApp (appId); app = getApp (appId); return app.execute (req); }
    ResponseTrans execute (RequestTrans req, String reqPath) throws Exception {	String appID = getAppID (reqPath);	IRemoteApp app = getApp (appID);	req.path = getRequestPath (reqPath);	return app.execute (req);    }