docs: public void getProxyInfos(Collection<ProxyInfo> result) {
          for (Map.Entry<String, DistributedObjectFuture> entry : proxies.entrySet()) {
              DistributedObjectFuture future = entry.getValue();
              if (future.isSetAndInitialized()) {
                  String proxyName = entry.getKey();
                  result.add(new ProxyInfo(serviceName, proxyName));
              }
          }
      }