AbstractFilter implements Filter { public FilterConfig getFilterConfig() { return filterConfig; }  FilterConfig getFilterConfig(); ServletContext getServletContext(); @Override final void init(FilterConfig config); @Override final void destroy(); @Override final void doFilter(
            ServletRequest request,
            ServletResponse response,
            FilterChain chain); static final String DISABLE_FILTER_SETTING_PREFIX; }
@Test public void getFilterConfig() throws ServletException { AbstractFilter filter = initFilter(createNoOverridesFilter()); assertThat(filter.getFilterConfig(), is(config)); }