code: public void setIndexOffline() throws RepositoryException
     {
        try
        {
           isResponsibleToSetIndexOnline = true;
           rpcService.executeCommandOnCoordinator(changeIndexMode, true, false);
        }
        catch (SecurityException e)
        {
           throw new RepositoryException(e);
        }
        catch (RPCException e)
        {
           throw new RepositoryException(e);
        }
     }
docs: {@inheritDoc}