@Override
  public CacheServer addCacheServer() {
    throwIfClient();
    stopper.checkCancelInProgress(null);

    InternalCacheServer server = new ServerBuilder(this, securityService,
        StatisticsClockFactory.disabledClock()).createServer();
    allCacheServers.add(server);

    sendAddCacheServerProfileMessage();
    return server;
  }
For use by unit tests to inject a mocked ccpTimer
geode-core/src/main/java/org/apache/geode/internal/cache/GemFireCacheImpl.java