code: @Override
  	public void close(boolean compact, boolean cleanup) {
  		logger.debug("close");
  		super.close(compact, cleanup);
  	    if (this.getDatabaseServer() == null) {
  	    	return;
  	    }
  	    
  	    try {
  	        // shutdown
  	    	((HsqldbDatabaseServer)this.getDatabaseServer()).shutdown(compact);
          } catch (Exception e) {
              logger.error(e.getMessage(), e);
          }
  	}
docs: /* (non-Javadoc)
  @see org.parosproxy.paros.db.DatabaseIF#close(boolean, boolean)