if (matchUserAgent(pathMapping)) {
                newUrl = pathMapping.process(this, newUrl);
            }
        }
        if (logger.isDebugEnabled() && !StringUtil.equals(url, newUrl)) {
            logger.debug("replace: {} -> {}", url, newUrl);
        }
        return newUrl;
    }

    protected boolean matchUserAgent(final PathMapping pathMapping) {