private void stopServices() {
    for (CacheService service : services.values()) {
      try {
        service.close();
      } catch (Throwable t) {
        logger.warn("Error stopping service " + service, t);
      }
    }
  }
Returns true if caller waited on the {@code isClosedLatch}.
geode-core/src/main/java/org/apache/geode/internal/cache/GemFireCacheImpl.java