@SuppressWarnings("unchecked") public void awaitLastFut(){
  FutureHolder holder=lastFut.get();
  IgniteInternalFuture fut=holder.future();
  if (fut != null && !fut.isDone()) {
    try {
      fut.get();
    }
 catch (    IgniteCheckedException ignored) {
    }
  }
}

@ SuppressWarnings ( "unchecked" ) public void awaitLastFut ( ) { FutureHolder holder = lastFut . get ( ) ; IgniteInternalFuture fut = holder . future ( ) ; if ( fut != null && ! fut . isDone ( ) ) { try { fut . get ( ) ; } catch ( IgniteCheckedException ignored ) { } } }
awaits for previous async operation to be completed .
