code: public long getDateExpires() {
  
          int pos = m_flexContextInfoList.size() - 1;
          if (pos < 0) {
              // ensure a valid position is used
              return CmsResource.DATE_EXPIRED_DEFAULT;
          }
          return (m_flexContextInfoList.get(pos)).getDateExpires();
      }
docs: Returns the combined "expires" date for all resources read during this request.<p>
  
  @return the combined "expires" date for all resources read during this request