Re: filter

Hello!
I wrote the ffollowing filter:
private FilterConfig filterConfig = null;

        /**
         * overwritten.
         */
        public void destroy() {
                filterConfig = null;

        }

        /**
         * filters parameters: ContentType and expires.
         */
        public void doFilter(ServletRequest arg0, ServletResponse arg1,
FilterChain arg2) throws IOException, ServletException {
                if (filterConfig == null)
                        return;
                HttpServletRequest request = (HttpServletRequest) arg0;
                HttpServletResponse response = (HttpServletResponse) arg1;
                System.out.print(request.getContextPath());
                System.out.print(request.getContentLength());

                arg2.doFilter(request, response);
        }

        /* (non-Javadoc)
         * @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
         */
        public void init(FilterConfig arg0) throws ServletException {
                this.filterConfig = arg0;

        }
and i get messege:
for ContextPath(): /servlet
for ContentLength(): -1.
How come I don't get any content?

Thank you