docs: @Override
      public void removePortalUID(final int uPortalUID) {
  
          this.transactionOperations.execute(
                  new TransactionCallbackWithoutResult() {
                      @Override
                      protected void doInTransactionWithoutResult(TransactionStatus arg0) {
                          final String name =
                                  jdbcOperations.queryForObject(
                                          "SELECT USER_NAME FROM UP_USER WHERE USER_ID=?",
                                          String.class,
                                          uPortalUID);
                          if (name == null) {
                              log.warn(
                                      "No user exists for id "
                                              + uPortalUID
                                              + " Nothing will be deleted");
                              return;
                          }
  
                          removePortalUID(name);
                      }
                  });
      }