docs: public Converter getFieldConverter()
      {
          for (int i = 0; ; i++)
          {
              Object ojbComponent = this.getField().getComponent(i);
              if (ojbComponent == null)
                  break;
              if (ojbComponent instanceof ScreenComponent)
              {
                  Converter conv = (Converter)((ScreenComponent)ojbComponent).getConverter();
                  if ((conv != null) && (conv.getField() == this.getField()))
                      return conv;   // Since there is a converter in front of this field, return the converter
              }
          }
          return this;
      }