code: @Override
      protected Set<String> extractSslRefs(Map<String, Object> properties, List<IIOPEndpoint> endpoints) {
          Set<String> result = new HashSet<String>();
          for (IIOPEndpoint endpoint : endpoints) {
              for (Map<String, Object> iiopsOptions : endpoint.getIiopsOptions()) {
                  String sslAliasName = (String) iiopsOptions.get("sslRef");
                  if (sslAliasName == null)
                      sslAliasName = defaultAlias;
                  result.add(sslAliasName);
              }
          }
          result.addAll(new ClientConfigHelper(null, null, defaultAlias).extractSslRefs(properties));
          result.addAll(new ServerConfigHelper(null, null, null, null, defaultAlias).extractSslRefs(properties));
          return result;
      }
docs: {@inheritDoc}