default boolean throttle(final HttpServletRequest request, final HttpServletResponse response) {
        return false;
    }
Attempts to pre-handle and throttle/stifle the requests
based on capacity and configured pools.

@param request  the request
@param response the response
@return true to stop the throttled request. false to proceed anyway.
core/cas-server-core-authentication-throttle/src/main/java/org/apereo/cas/throttle/ThrottledRequestExecutor.java