public long getLastAccessedTime() {
        return lastAccessedTime;
    }
Returns the time this tunnel was last accessed, as the number of
milliseconds since midnight January 1, 1970 GMT. Tunnel access must
be explicitly marked through calls to the access() function.

@return
    The time this tunnel was last accessed.
guacamole-common/src/main/java/org/apache/guacamole/servlet/GuacamoleHTTPTunnel.java