private InetAddress getBindAddress() throws IOException {
    if (bindHostName == null || bindHostName.isEmpty()) {
      return null; // pick default local address
    }
    return InetAddress.getByName(bindHostName);
  }
@param bindName the ip address or host name that this acceptor should bind to. If null or ""
       then calculate it.
@return the ip address or host name this acceptor will listen on. An "" if all local addresses
        will be listened to.
@since GemFire 5.7
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/AcceptorImpl.java