ControllerConfig.java

@Slf4j
@ControllerAdvice
public class ControllerConfig {

	@ExceptionHandler(Exception.class)
	public ModelAndView handleException(Exception ex, HttpServletResponse response) {
		log.warn("Unchaught Exception", ex);
		response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
		
		// TODO handle AJAX calls differently
		
		ModelAndView modelAndView = new ModelAndView();
		modelAndView.setViewName("error");
		modelAndView.addObject("errorName", ex.getClass().getSimpleName());
		return modelAndView;
	}
	
}