private Acceptor createAcceptor() throws IOException {
    return createAcceptor(0);
  }
If a CacheServer is stopped as part of cache.close() we don't need to inform other
members of the cluster since all regions will be destroyed.
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/tier/sockets/AcceptorImplIntegrationTest.java