code: private void addRequestCachingFilter() {
          FilterMapping filterMapping = new FilterMapping();
          filterMapping.setFilterName("request-caching-filter");
          filterMapping.setPathSpec("/*");
  
          FilterHolder filterHolder = new FilterHolder(new RequestCachingServletFilter());
          filterHolder.setName("request-caching-filter");
          servletHandler.addFilter(filterHolder, filterMapping);
      }
docs: Adds request caching filter used for not using request data when
  logging incoming requests