private ScriptString prepareCSVMessageScript(FacesContext facesContext) {
MessageFactory messageFactory = ServiceTracker.getService(MessageFactory.class);
FacesMessage message = messageFactory.createMessage(facesContext, FacesMessage.SEVERITY_ERROR,
FacesMessages.UISELECTONE_INVALID, "{0}");
return new AddCSVMessageScript(FacesMessages.UISELECTONE_INVALID.name(), message);
}