code: protected Converter createConverter(FaceletContext ctx) throws FacesException, ELException, FaceletException
      {
          return ctx.getFacesContext().getApplication().createConverter(NumberConverter.CONVERTER_ID);
      }
docs: Returns a new NumberConverter
  
  @see NumberConverter
  @see org.apache.myfaces.view.facelets.tag.jsf.ConverterHandler#createConverter(javax.faces.view.facelets.FaceletContext)