ISignSessionLocalHome signsessionhome = (ISignSessionLocalHome) lookup("java:comp/env/ejb/SignSessionLocal",ISignSessionLocalHome.class);
ISignSessionLocalHome signsessionhome = (ISignSessionLocalHome) getLocator().getLocalHome(ISignSessionLocalHome.COMP_NAME);
    private ISignSessionLocal getSignSession() {        if(signsession == null){            try{                ISignSessionLocalHome signsessionhome = (ISignSessionLocalHome) lookup("java:comp/env/ejb/SignSessionLocal",ISignSessionLocalHome.class);                signsession = signsessionhome.create();            }catch(Exception e){                throw new EJBException(e);            }        }        return signsession;    } //getSignSession