docs: public void setControlValue(Object objValue)
      {
          if (objValue instanceof String)
          {
              if (((String)objValue).equalsIgnoreCase(Constants.TRUE))
                  objValue = Boolean.TRUE;
              else if (((String)objValue).equalsIgnoreCase(Constants.FALSE))
                  objValue = Boolean.FALSE;
          }
          super.setControlValue(objValue);
      }