docs: @Override
      @FFDCIgnore(IllegalArgumentException.class)
      public boolean isValidGroup(String groupSecurityName) throws CustomRegistryException, RemoteException {
          try {
              return wrappedUr.isValidGroup(groupSecurityName);
          } catch (RegistryException e) {
              throw new CustomRegistryException(e.getMessage(), e);
          } catch (IllegalArgumentException e) {
              return false;
          }
      }