code: public Set<IConnection> getClientConnections() {
          Set<IConnection> result = new HashSet<IConnection>(3);
          log.debug("Client count: {}", clients.size());
          for (IClient cli : clients) {
              Set<IConnection> set = cli.getConnections();
              log.debug("Client connection count: {}", set.size());
              if (set.size() > 1) {
                  log.warn("Client connections exceeded expected single count; size: {}", set.size());
              }
              for (IConnection conn : set) {
                  result.add(conn);
              }
          }
          return result;
      }
docs: {@inheritDoc}