public void setLastResponseEmpty(boolean lastResponseEmpty) {
        this.lastResponseEmpty = lastResponseEmpty;
    }
lastResponseEmpty true if last response of this session is an empty body element. This
is used in overactivity checking.

@param lastResponseEmpty true if last response of this session is an empty body element.
xmppserver/src/main/java/org/jivesoftware/openfire/http/HttpSession.java