String Splitting with multiple delimiters java

I am splitting below string with multiple delimiters. Delimiters are:

, . @ ? ! _ ' and white space etc. 

Below is my code:

String[] tokens = s.split("[!|?|,|.|_|'|@ |\\s]");

For input: He is a very very good boy, isn't he?

Expected output after split is: 10 tokens He is a very very good boy isn t he

But I am getting below ouput: 11 tokens He is a very very good boy

isn t he

Because two delimiters whitespace and comma are adjacent, it is giving 11 tokens. How to get expected output?