code: @SuppressWarnings("unused")
      public List<Integer> getDeploymentsThreads() {
          List<Integer> items = new ArrayList<>();
          for (int i = 1; i <= 10; i++) {
              items.add(i);
          }
          return items;
      }
docs: Return number of deployment threads.
  To populate the dropdown list from the jelly:
  <j:forEach var="r" items="${server.deploymentsThreads}">