I got this message: Uncaught exception javax/xml/rpc/JAXRPCException

[nor alain]

Hi all

I got this message when i start using my emulator :

Uncaught exception javax/xml/rpc/JAXRPCException: javax.microedition.io.ConnectionNotFoundException: TCP open.

this message appears when the emulator arrived this code:

  public Screen cityListAction (){
        int a = cityList.getSelectedIndex();
        String city = cityList.getString(a);
        int i = 0;
        if (city.equals("Al Ain")) {
                        try {
                            stub = new NewWebServiceService_Stub();
                getCategories = stub.findAllY();
                for (i = 0; i < getCategories.length; i++) {
                    if(getCategories[i].getCityName().equals(city)){
                        CategoryList = new List("Choose the appropriate category", Choice.IMPLICIT);
                        CategoryList.append(getCategories[i].getCateName(), null);
                        CategoryList.setFont(i, getFont1());
                    }              
                }
            } catch (RemoteException ex) {
                ex.printStackTrace();
            }
        }
        display.setCurrent(CategoryList);
        CategoryList.setTicker(getTicker());
        CategoryList.addCommand(getBackCommand());
        CategoryList.addCommand(getCancelCommand());
        CategoryList.addCommand(getExitCommand());
        CategoryList.setCommandListener(this);
        return CategoryList;
    }  

Can some one help me, please ?