} catch (final WebApiException e) {
            final int statusCode = e.getStatusCode();
            String message;
            if (Constants.TRUE.equalsIgnoreCase(ComponentUtil.getFessConfig().getApiJsonResponseExceptionIncluded())) {
                if (statusCode >= 400 && statusCode < 500) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Failed to access Web API.", e);
                    }