public void setServletResponse(ServletResponse response) {
        if (response != null) {
            put(SERVLET_RESPONSE, response);
        }
    }
Default implementation of the {@link WebSessionContext} interface which provides getters and setters that
wrap interaction with the underlying backing context map.

@since 1.0
web/src/main/java/org/apache/shiro/web/session/mgt/DefaultWebSessionContext.java