private static EnterpriseNeoServer createServer(boolean persistent) throws IOException {
   EnterpriseServerBuilder builder = EnterpriseServerBuilder.server();
   configureHostname(builder);
   if (persistent) builder = (EnterpriseServerBuilder) builder.persistent();
   EnterpriseNeoServer server = builder.build();
   server.start();
   return server;
 }
 private static void configureHostname(EnterpriseServerBuilder builder) {
   String hostName = System.getProperty("neo-server.test.hostname");
   if (StringUtils.isNotEmpty(hostName)) {
     builder.onHost(hostName);
   }
 }