code: public static String[] getControllerResquestMapping(Class<?> controllerClazz) {
  	String[] controllerRequestMappingValues = {};
  
  	// Determine if we will use class-level requestmapping or dummy string
  	RequestMapping classRequestMapping = AnnotationUtils.findAnnotation(controllerClazz, RequestMapping.class);
  	if (classRequestMapping != null) {
  	    controllerRequestMappingValues = classRequestMapping.value();
  	}
  
  	if (controllerRequestMappingValues.length == 0) {
  	    controllerRequestMappingValues = new String[1];
  	    controllerRequestMappingValues[0] = "";
  	}
  	return controllerRequestMappingValues;
      }
docs: Extracts all routes from the annotated class
  
  @param controllerClazz
  Instrospected class
  @return At least 1 route value (empty string)