Mule OAuth2.0 token is not getting expired after TTL

In the Oauth2 provider config settings I kept Token ttl=120 and Token ttl timeout unit= Seconds.

But after 120 seconds the token is not getting expired, its still able to by-pass the validation, but I expect Invalid/expired token error.

I also tried setting in the Token object store Entry ttl as 30 sec, but still it does not work..