RequestDataValueProcessorAdaptor implements
                                              RequestDataValueProcessor { @Override public Map<String, String> getExtraHiddenFields( HttpServletRequest request) { return null; }  String processAction(HttpServletRequest request, String action); @Override String processAction(HttpServletRequest request, String action,
            String method); @Override String processFormFieldValue(HttpServletRequest request, String name,
            String value, String type); @Override Map<String, String> getExtraHiddenFields(
            HttpServletRequest request); @Override String processUrl(HttpServletRequest request, String url);  }
@Test public void testGetExtraHiddenFields() { Map<String, String> map = requestDataValueProcessorAdaptor .getExtraHiddenFields(request); assertThat(map, is(nullValue())); }