Using smack 4.1.6 in java server for android ccs

I want to develop a chatting app and for the server side I have use smack library. I have few question will this library be efficient to handle 1000 of request per second as the app grows, and I can’t find latest smack 4.1.6 integration sample with java server, any link will be helpful. But most important is that is this library will serve purpose for many users sending parallel request or should I go for some other library?