public void performStopOperationAsync(final String vmId,final FutureCallback<Task> responseCallback) throws IOException {
  String path=String.format("%s/%s/stop",getBasePath(),vmId);
  createObjectAsync(path,null,responseCallback);
}

public void performStopOperationAsync ( final String vmId , final FutureCallback < Task > responseCallback ) throws IOException { String path = String . format ( "%s/%s/stop" , getBasePath ( ) , vmId ) ; createObjectAsync ( path , null , responseCallback ) ; }
perform a vm stop operation on specified vm .
