docs: private void setSiteMatcherSites(Map<CmsSiteMatcher, CmsSite> siteMatcherSites) {
  
          m_siteMatcherSites = Collections.unmodifiableMap(siteMatcherSites);
          m_siteMatchers = Collections.unmodifiableList(new ArrayList<CmsSiteMatcher>(m_siteMatcherSites.keySet()));
      }