code: @Override
      public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
  
          HttpServletRequestWrapper reqestWrapper =
                          (HttpServletRequestWrapper) request.getAttribute("com.ibm.ws.security.jaspi.servlet.request.wrapper");
          HttpServletResponseWrapper responseWrapper =
                          (HttpServletResponseWrapper) request.getAttribute("com.ibm.ws.security.jaspi.servlet.response.wrapper");
          ServletRequest req = reqestWrapper != null ? reqestWrapper : request;
          ServletResponse res = responseWrapper != null ? responseWrapper : response;
          chain.doFilter(req, res);
      }
docs: /*
  If a JASPI provider returned request/response wrappers in the MessageInfo object then
  use those wrappers instead of the original request/response objects for web request.
  
  @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)