String token = "..."; // Obtain the token from your OAuth2 provider
ConfigurationBuilder clientBuilder = new ConfigurationBuilder();
clientBuilder
   .addServer()
      .host("127.0.0.1")
      .port(11222)
   .security()
      .authentication()
         .saslMechanism("OAUTHBEARER")
         .token(token);
remoteCacheManager = new RemoteCacheManager(clientBuilder.build());
RemoteCache<String, String> cache = remoteCacheManager.getCache("secured");