docs: protected void addValidators() {
  
          //Target file ComboBox
          m_target.removeAllValidators();
          m_target.addValidator(new TargetValidator());
  
          for (I_CmsEditableGroupRow row : m_resourcesGroup.getRows()) {
              FormLayout layout = (FormLayout)(row.getComponent());
              CmsPathSelectField field = (CmsPathSelectField)layout.getComponent(0);
              field.removeAllValidators();
              field.addValidator(new ResourceValidator());
          }
      }