docs: public void resetFocus()
      {
          for (int i = 0; ; i++)
          {
              Converter converter = this.getFieldForScreen(i);
              if (converter == SKIP_THIS_FIELD)
                  continue;
              if (converter == null)
                  break;
              if (converter instanceof FieldInfo)
                  if (((FieldInfo)converter).getComponent(CONTROL) != null)
                  {
                      ((Component)((FieldInfo)converter).getComponent(CONTROL)).requestFocus();
                      return;
                  }
          }
      }