code: public Map<CmsExportname, String> getExportnames() {
  
          if (m_exportnameResources == null) {
              try {
                  TreeMap<CmsExportname, String> sort = new TreeMap<CmsExportname, String>(new CmsExportNameComparator());
                  sort.putAll(computeVfsExportnames());
                  m_exportnameResources = sort;
              } catch (Throwable t) {
                  LOG.error(t.getMessage(), t);
              }
          }
          if (LOG.isDebugEnabled()) {
              LOG.debug(Messages.get().getBundle().key(Messages.LOG_UPDATE_EXPORTNAME_PROP_FINISHED_0));
          }
          return Collections.unmodifiableMap(m_exportnameResources);
      }
docs: Returns a map of all export names with export name as key
  and the vfs folder path as value.<p>
  
  @return a map of export names