@SuppressWarnings({"UnusedDeclaration"})
    protected String getContextInitParam(String paramName) {
        return getServletContext().getInitParameter(paramName);
    }
Base implementation for any components that need to access the web application's {@link ServletContext ServletContext}.

@since 0.2
web/src/main/java/org/apache/shiro/web/servlet/ServletContextSupport.java