code: @Override
      public void shutDown() {
  
          super.shutDown();
          indexSearcherClose();
          if (m_analyzer != null) {
              m_analyzer.close();
          }
          if (CmsLog.INIT.isInfoEnabled()) {
              CmsLog.INIT.info(Messages.get().getBundle().key(Messages.INIT_SHUTDOWN_INDEX_1, getName()));
          }
      }
docs: Shuts down the search index.<p>
  
  This will close the local Lucene index searcher instance.<p>